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Recent Longevity News for the seven days ending
2/13/13. You should consult your doctor if you are taking any medications.
Thin Asians at Risk
for Diabetes Due to Hidden Body Fat - Medscape, 2/11/13 -
"Japanese American women are twice as likely to be
diagnosed with diabetes as whites, despite
having lower body-mass indexes (BMIs) ... Indians are often diagnosed with
diabetes 10 years earlier and 5- to 10-units BMI thinner than whites ... Both
believe the explanation lies in "hidden" visceral fat found inside the body,
between organs, in Asians and probably other ethnic groups too, but not in
whites. This in turn affects the levels of adipokines secreted, such as
leptin and adiponectin, which can have adverse
metabolic effects ... Overall, Japanese women had significantly lower BMIs (23.7
vs 25.3 kg/m2), leptin (15.0 vs 25.9 ng/mL), and adiponectin (11.7 vs 16.0
µg/mL) than whites ... one factor he believes may be playing an important role
in India is vegetarianism. People there consume high amounts of folate but are
deficient in vitamin B12, creating a low-B12/high-folate intrauterine
environment that "produces babies who are mostly insulin resistant."" -
See my
adiponectin page for ways to increase it.
The way I understand it, leptin just decreases appetite. If a person is
already thin I wouldn't think it would affect visceral fat.
Exercise
linked with reduced prostate cancer risk in Caucasians but not African-Americans
- Science Daily, 2/11/13 - "Lionel L. Bañez, MD, of the
Durham Veterans Affairs Medical Center, and his colleagues asked 307 men (164
white; 143 black) undergoing a prostate biopsy to complete a survey that
assessed their exercise amounts per week ... Among Caucasians, men who were
moderately or highly active were 53% less likely to have biopsy results
indicating that they had prostate cancer
compared with men who were sedentary or mildly active ... Among men with cancer,
those who exercised had a 13% reduced risk of
having high grade disease"
Fish oil
may protect dialysis patients from sudden cardiac death - Science Daily,
2/6/13 - "We found that higher levels of
omega-3 fatty acids in the blood of patients
who were just starting hemodialysis were
very strongly associated with a lower risk of sudden cardiac death over the
first year of their treatment ... The five-year survival rate for patients on
hemodialysis is 35 percent, with the risk of death highest in the first few
months of starting treatment. The most common cause of death in these patients
is sudden cardiac death, which accounts for about one out of every four deaths"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
CKD and Low
Magnesium: Pay Attention - Medscape, 2/6/13 - "When
adjusted for differences in age and sex among quartiles, the lowest
magnesium group had the highest incidence of
new atrial fibrillation events (9.4
episodes per 1000 person-years). The rates for the other 3 quartiles were quite
similar (6.9, 7.1, and 6.3 events per 1000 person-years for the second, third,
and fourth quartiles, respectively). In multivariable models controlled for the
multiple potential differences including glomerular filtration rate, those with
the lowest levels of magnesium continued to be at highest risk for the
development of atrial fibrillation (hazard ratio, 1.48; 95% confidence interval,
1.02- 2.14; P = .04)" - See magnesium supplements at Amazon.com.
Smoking
marijuana associated with higher stroke risk in young adults - Science
Daily, 2/6/13 - "In a New Zealand study, ischemic stroke
and transient ischemic attack (TIA) patients were 2.3 times more likely to have
cannabis, also known as marijuana, detected in
urine tests as other age and sex matched patients ... People need to think twice
about using cannabis," because it can affect brain development and result in
emphysema, heart attack and now stroke"
Re-Analysis Refutes Diet Guidelines Favoring Vegetable Fats - WebMD, 2/6/13
- "The first group was told to consume linoleic acid, in
the form of safflower oil and safflower oil polyunsaturated margarine, at levels
equal to 15 percent of total calorie intake. This, said Ramsden, is equivalent
to roughly twice the amount that Americans currently consume ... While
omega-3 consumption was not affected, the men
were also asked to lower their saturated fat
intake so that it made up less than 10 percent of their diets. They did so by
substituting safflower oil for animal fats ... The second group continued their
routine nutritional habits ... By newly crunching all the original data the NIH
team found that, compared to the no-dietary-change group, the linoleic acid
group faced a higher risk of death, from both heart disease specifically as well
as from all causes overall ... the NIH team found no evidence to support the
notion that linoleic acid confers health benefits. The review highlighted the
possibility that boosting omega-6
consumption may actually increase the risk for developing heart disease ...
Polyunsaturates are not just involved in cholesterol-lowering. They may also be
involved in inflammation, oxidation or clotting"
Omega-6
polyunsaturated |
Omega-3
polyunsaturated |
Omega-9
monounsaturated |
LA -
Linoleic Acid |
ALA or
LNA - Alpha linolenic acid |
Oleic
acid |
GLA - Gamma linolenic acid |
EPA -
Eicosapentaenoic acid |
|
DGLA -
Dihomo gamma-linolenic Acid |
DHA -
Docosahexaenoic acid |
|
AA -
Arachidonic Acid |
DPA
(omega 3) - Docosapentaenoic acid |
|
DTA -
Docosatetraenoic acid |
|
|
DPA -
(omega 6) Docosapentaenoic |
|
|
Twenty
Hours of TV a Week Linked to Almost Half Sperm Count of Those Who Watch Little
TV - Science Daily, 2/5/13 - "Healthy young men who
watch TV for more than 20 hours a week have almost half the
sperm count of men who watch very little TV
... Conversely, men who do 15 or more hours of moderate to vigorous
exercise every week have sperm counts that are
73% higher than those who exercise little ... light physical exercise made no
difference to the sperm count, no matter how frequent it was"
Green
tea and red wine extracts interrupt Alzheimer's disease pathway in cells -
Science Daily, 2/5/13 - "They were able to interrupt
this pathway using the purified extracts of EGCG from
green tea and
resveratrol from red wine ... Alzheimer's
disease is characterised by a distinct build-up of amyloid protein in the
brain, which clumps together to form toxic, sticky balls of varying shapes.
These amyloid balls latch on to the surface of nerve cells in the brain by
attaching to proteins on the cell surface called prions, causing the nerve cells
to malfunction and eventually die ... The team formed amyloid balls in a test
tube and added them to human and animal brain cells ... When we added the
extracts from red wine and green tea, which recent research has shown to
re-shape amyloid proteins, the amyloid balls no longer harmed the nerve cells"
- See
green tea extract at Amazon.com and
resveratrol products at Amazon.com.
Vitamin
D, omega-3 may help clear amyloid plaques found in Alzheimer's - Science
Daily, 2/5/13 - "Our new study sheds further light on a
possible role for nutritional substances such as
vitamin D3 and omega-3 in boosting
immunity to help fight Alzheimer's ... The
team incubated the immune cells overnight with amyloid-beta. They added either
an active form of vitamin D3 called 1alpha,25–dihydroxyvitamin D3 or an active
form of the omega-3 fatty acid DHA called resolvin D1
to some of the cells to gauge the effect they had on inflammation and
amyloid-beta absorption ... Both 1alpha, 25-dihydroxyvitamin D3 and resolvin D1
improved the ability of the Alzheimer's disease patients' macrophages to
gobble-up amyloid-beta, and they inhibited the cell death that is induced by
amyloid-beta. Researchers observed that each nutrition molecule utilized
different receptors and common signaling pathways to do this"
Some
omega-3 oils better than others for protection against liver disease -
Science Daily, 2/5/13 - "EPA
had comparatively little effect on preventing the fibrosis, or scarring, that's
associated with NASH. However,
DHA supplementation reduced the proteins involved in
liver fibrosis by more than 65 percent ... A reduction of that magnitude in the
actual scarring and damage to the liver is very important ... DHA was more
effective than EPA at attenuating inflammation, oxidative stress, fibrosis and
hepatic damage" - Note: I take both. See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
It
actually is better (and healthier) to give than to receive, study finds -
Science Daily, 2/4/13 - "when dealing with stressful
situations, those who had helped others during the previous year were less
likely to die than those who had not helped others ... Self-reported stressful
experiences included such things as serious, non-life-threating illness,
burglary, job loss, financial difficulties or death of a family member ...
Respondents also reported the total amount of time in the past 12 months they
had spent helping friends, neighbors or relatives who did not live with them by
providing transportation, doing errands and shopping, performing housework,
providing child care and other tasks ... the Cox proportional hazard models (the
most widely used method of survival analysis) for mortality revealed a
significant interaction between helping behavior, stressful events, morbidity
and mortality"
Abstracts from this week's
Doctor's Guide Nutrition/Dietetics
plus abstracts from my RSS feeds (Click here
for the journals, the PubMed ones at the top):
Decreased
Serum Concentrations of 25-Hydroxycholecalciferol Are Associated With Increased
Risk of Progression to Impaired Fasting Glucose and Diabetes - Diabetes
Care. 2013 Feb 7 - "In a historical prospective cohort
study of subjects from the Clalit Health Services database, which includes
information on nearly 4 million people, diabetes-free subjects aged 40-70 years
with serum 25-hydroxyvitamin D (25-OHD)
measurements available were followed up for 2 years to assess the development of
IFG and diabetes
in five 25-OHD subgroups: ≥25, 25.1-37.5, 37.6-50, 50.1-75, and >75 nmol/L ...
The odds of transitioning from normoglycemia to IFG, from normoglycemia to
diabetes, and from IFG to diabetes in subjects with a 25-OHD level ≤25 nmol/L
were greater than those of subjects with a 25-OHD level >75 nmol/L [odds ratio
1.13 (95% CI 1.03-1.24), 1.77 (1.11-2.83), and 1.43 (1.16-1.76), respectively]
... Vitamin D deficiency appears to be an independent risk factor for the
development of IFG and diabetes" - See
vitamin D at Amazon.com.
U-Shape
Association Between Hemoglobin A1c and Late Mortality in Patients With Heart
Failure After Cardiac Surgery - Am J Cardiol. 2013 Feb 4 -
"Patients with and without New York Heart Association
class III or IV heart failure were divided into quartiles according to the
preoperative HbA1c level ... After adjusting for
confounders, the patients without heart failure and with HbA1c ≤5.7% had the
lowest risk of death. In patients with preoperative heart failure, we found a
U-shaped association between HbA1c levels and late mortality, with those
patients with HbA1c levels of 5.8% to 6.2% having the lowest risk of death.
HbA1c levels ≤5.7% and ≥7.2% were associated with statistically significant
greater risks of death"
Serum Folate
but Not Vitamin B-12 Concentrations Are Positively Associated with Cognitive
Test Scores in Children Aged 6-16 Years - J Nutr. 2013 Feb 6 -
"Serum folate and vitamin
B-12 concentrations were measured, along with performance, on the Wide Range
Achievement Test-Revised and the Wechsler Intelligence Scale for
Children-Revised ... serum concentrations of folate were associated with higher
reading and block design scores after adjusting for various covariates. For
example, compared with the lowest quartile of folate, children in the highest
quartile scored 3.28 points or 0.19 SD units higher on the reading test (P <
0.05). Vitamin B-12 was not associated with any of the test scores. In the
largest study to date, higher folate concentrations were associated with better
reading and block design scores" - See
folic acid products at Amazon.com.
Soy
isoflavone intake and breast cancer risk in Japan: From the takayama study -
Int J Cancer. 2013 Feb 6 - "We assessed the associations
of soy and
isoflavone intake with breast cancer
incidence in a population-based prospective cohort study in Japan. Participants
were members from the Takayama study, aged 35 years or older in 1992 ... Soy and
isoflavone intakes were assessed with a validated food-frequency questionnaire
... The relative risks of postmenopausal
breast cancer were lower among women with higher intakes of soy (trend p=0.023)
and isoflavone (trend p=0.046), although the relative risks of premenopausal
breast cancer were not associated with intakes of soy and isoflavone. Decreased
risks of breast cancer were found even among women with a moderate intake of soy
and isoflavone. These results suggested that soy and isoflavone intake have a
protective effect on postmenopausal breast cancer"
Post-exercise whey protein hydrolysate supplementation induces a greater
increase in muscle protein synthesis than its constituent amino acid content
- Br J Nutr. 2013 Feb 7:1-7 - "Male Sprague-Dawley rats
swam for 2 h to depress muscle protein synthesis. Immediately after exercise,
the animals were administered either carbohydrate (CHO), CHO plus an amino acid
mixture (AA) or CHO plus WPH. At 1 h after exercise, the supplements containing
whey-based protein (AA and WPH) caused a significant
increase in the fractional rate of protein synthesis (FSR) compared with CHO ...
These results indicate that WPH may include active components that are superior
to amino acids for stimulating muscle protein synthesis and initiating
translation" - See
whey protein at Amazon.com.
Fish oil
supplementation reduces cortisol basal levels and perceived stress: A
randomized, placebo-controlled trial in abstinent alcoholics - Mol Nutr Food
Res. 2013 Feb 6 - "Behavioral distress and dysfunctions
of hypothalamic-pituitary-adrenocortical (HPA) axis play a central role in
alcohol abuse. Omega-3 fatty acids are
proposed as having antistress, regulatory effects on HPA responsiveness ...
doubleblind, placebo-controlled trial was performed in male alcoholics
undergoing residential rehabilitation program, to evaluate the effects of 3-week
supplementation with fish-oil providing eicosapentaenoic (60 mg/day) and
docosahexaenoic acid (252 mg/day) on perceived
stress/anxiety and HPA activity, assessed by measuring saliva basal
cortisol levels at various daytimes ... In
conclusion, an elevated omega-3 intake may reduce distress symptoms and basal
cortisol secretion in abstinent alcoholics, thus providing a valid subsidiary
measure to increase the efficacy of rehabilitation programs in ethanol addicts"
- Note: I'm wondering why they chose such a low dose. That's not
even the amount of omega-3 in the average capsule on one good fish oil capsule.
See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
Alleviation
of chronic pain following rat spinal cord compression injury with multimodal
actions of huperzine A - Proc Natl Acad Sci U S A. 2013 Feb -
"Compared with controls,
HUP-A treatment demonstrates significant analgesic effects in both regimens.
SCI rats manifested no drug tolerance following repeated bolus i.p. or chronic
intrathecal HUP-A dosing. The pain-ameliorating effect of HUP-A is cholinergic
dependent. Relative to vehicle treatment, HUP-A administration also reduced
neural inflammation, retained higher numbers of calcium-impermeable
GluR2-containing AMPA receptors, and prevented Homer1a up-regulation in dorsal
horn sensory neurons. Therefore, HUP-A may provide safe and effective management
for chronic postneurotrauma pain by reestablishing
homeostasis of sensory circuits" - See
huperzine products at iHerb.
Folate
deficiency is associated with oxidative stress, increased blood pressure, and
insulin resistance in spontaneously hypertensive rats - Am J Hypertens. 2013
Jan;26(1):135-40 - "we analyzed the role of folate
deficiency in pathogenesis of the metabolic syndrome in the spontaneously
hypertensive rat (SHR) ... Folate deficiency also increased systolic blood
pressure by approximately 15mm Hg ... These findings demonstrate that the SHR
model is susceptible to the adverse metabolic and hemodynamic effects of low
dietary intake of folate. The results are consistent with the hypothesis that
folate deficiency can promote oxidative stress and multiple features of the
metabolic syndrome that are associated with increased risk for diabetes and
cardiovascular disease" - See
folic acid products at Amazon.com.
Plasma total
testosterone and incident cardiovascular events in hypertensive patients -
Am J Hypertens. 2013 Mar;26(3):373-81 - "Hypertension, a
major contributory factor to the development of cardiovascular disease, has also
been associated with increased prevalence of low
testosterone. We investigated whether low
androgen concentration predicts incident major adverse cardiovascular events
(MACE) in middle-aged nondiabetic hypertensive patients without clinical
atherosclerosis ... total testosterone (TT) ... Compared to patients who did not
experience MACE, hypertensive subjects who developed MACE had lower TT
concentration (3.9+/-0.7ng/ml vs. 4.6+/-1.5ng/ml, P < 0.01) and a higher
prevalence of hypogonadism (36% vs. 16%, P < 0.05). Subjects in the lowest TT
tertile (<4.0ng/ml) had a statistically significant higher risk of MACE compared
to those in the highest tertile (>4.9ng/ml) in multivariate Cox models adjusted
for age, systolic blood pressure, and risk factors (all P < 0.05). A TT plasma
level of 5.04ng/ml was associated with a negative predictive value (ability to
"rule out" MACE) of 97.2%. Addition of TT to standard risk factors model yielded
a net reclassification improvement of 38.8 % (P < 0.05)"
Health Focus (Dangers
of Fructose):
News & Research:
-
Fructose
has different effect than glucose on brain regions that regulate appetite -
Science Daily, 1/1/13 - "ingestion of glucose but not
fructose reduced cerebral blood flow and activity in brain regions that regulate
appetite, and ingestion of glucose but not fructose produced increased ratings
of satiety and fullness"
-
Weekly
soft drink consumption bubbles up knee osteoarthritis; especially in men -
Science Daily, 11/11/12 - "men who consumed more soft
drinks per week had worse knee OA progression. The joint space became narrower
by an average of 0.29 millimeters in men who drank no soft drinks to 0.59
millimeters in men who drank more than five soft drinks a week. Interestingly,
men with lower BMI, less than 27.5 kg/m2, showed more knee OA progression with
increased soft-drink consumption than men who had higher BMI scores. By
contrast, only women in the lowest BMI segment of the study, less than
27.3kg/m2, showed an association between more soft-drink consumption and knee OA
progression"
-
Eating
lots of carbs, sugar may raise risk of cognitive impairment - Science Daily,
10/16/12 - "People 70 and older who eat food high in
carbohydrates have nearly four times the risk of developing mild cognitive
impairment, and the danger also rises with a diet heavy in sugar, Mayo Clinic
researchers have found. Those who consume a lot of protein and fat relative to
carbohydrates are less likely to become cognitively impaired ... Researchers
tracked 1,230 people ages 70 to 89 who provided information on what they ate
during the previous year ... A high carbohydrate intake could be bad for you
because carbohydrates impact your glucose and insulin metabolism"
-
Increased dietary fructose linked to elevated uric acid levels and lower liver
energy stores - Science Daily, 9/13/12 - "increased
dietary fructose can alter the body's metabolism and energy balance. Energy
depletion in the liver may be associated with liver injury in patients with
non-alcoholic fatty liver disease (NAFLD) and in those at risk for developing
this metabolic condition ... For the present study, 244 obese and diabetic
adults from the Look AHEAD Study were evaluated, with dietary fructose
consumption estimated by the food frequency questionnaire ... "High fructose
consumption and elevated levels of uric acid are associated with more severe
depletion of liver ATP. Our findings suggest that increased dietary fructose
intake may impair liver "energy balance." Further research to define the
clinical implications of these findings on metabolism and NAFLD is necessary.""
-
New
evidence in fructose debate: Could it be healthy for us? - Science Daily,
6/21/12 - "fructose may not be as bad for us as
previously thought and that it may even provide some benefit ... this research
suggests that the problem is likely one of overconsumption, not fructose ... The
study reviewed 18 trials with 209 participants who had Type 1 and 2 diabetes and
found fructose significantly improved their blood sugar control. The improvement
was equivalent to what can be achieved with an oral antidiabetic drug ... We're
seeing that there may be benefit if fructose wasn't being consumed in such large
amounts ... All negative attention on fructose-related harm draws further away
from the issue of eating too many calories" - [Abstract]
-
This is
your brain on sugar: Study in rats shows high-fructose diet sabotages learning,
memory - Science Daily, 5/15/12 - "Binging on soda
and sweets for as little as six weeks may make you stupid ... Eating a
high-fructose diet over the long term alters your brain's ability to learn and
remember information. But adding omega-3 fatty acids to your meals can help
minimize the damage ... studied two groups of rats that each consumed a fructose
solution as drinking water for six weeks. The second group also received omega-3
fatty acids in the form of flaxseed oil and docosahexaenoic acid (DHA), which
protects against damage to the synapses -- the chemical connections between
brain cells that enable memory and learning ... DHA is essential for synaptic
function -- brain cells' ability to transmit signals to one another ... Our
findings suggest that consuming DHA regularly protects the brain against
fructose's harmful effects" - See
Jarrow Max DHA at Amazon.com.
-
Soda
consumption increases overall stroke risk - Science Daily, 4/20/12 -
"The research analyzed soda consumption among 43,371
men who participated in the Health Professionals Follow-Up Study between
1986 and 2008, and 84,085 women who participated in the Nurses' Health Study
between 1980 and 2008 ... In sugar-sweetened sodas, the sugar load may lead
to rapid increases in blood glucose and insulin which, over time, may lead
to glucose intolerance, insulin resistance, and inflammation. These
physiologic changes influence atherosclerosis, plaque stability and
thrombosis -- all of which are risk factors of ischemic stroke ... In
comparison, coffee contains chlorogenic acids, lignans and magnesium, all of
which act as antioxidants and may reduce stroke risk. When compared with one
serving of sugar-sweetened soda, one serving of decaffeinated coffee was
associated with a 10 percent lower risk of stroke"
-
Sugar-sweetened drinks linked to increased risk of heart disease in men
- Science Daily, 3/1/12 - "Men who drank a 12-ounce
sugar-sweetened beverage a day had a 20 percent higher risk of heart disease
compared to men who didn't drink any sugar-sweetened drinks"
-
Research offers insight to how fructose causes obesity and other illness
- Science Daily, 2/27/12
-
High
fizzy soft drink consumption linked to violence among teens - Science
Daily, 10/25/11 - "heavy use of carbonated non-diet
soft drinks was significantly associated with carrying a gun or knife, and
violence towards peers, family members and partners ... When the findings
were divided into four categories of consumption, the results showed a clear
dose-response relationship across all four measures ... There may be a
direct cause-and-effect-relationship, perhaps due to the sugar or caffeine
content of soft drinks, or there may be other factors, unaccounted for in
our analyses, that cause both high soft drink consumption and aggression"
-
Dietary Fructose
and Risk of Metabolic Syndrome in Adults - Medscape, 9/28/11 -
"in our study the association between dietary
fructose and metabolic syndrome and its components was observed only in the
third and fourth quartiles of fructose intakes, approximately over 8 and 12%
of energy intake (> 50 g/d); while dietary intake of fructose from natural
sources including fruits and vegetables, even in the fourth quartile of
fructose intakes was only 5% of energy, approximately 30 g/d. Thus, the
increased risk of metabolic syndrome and its components may be attributed to
increase fructose intake from industrialized foods"
-
Sugar-sweetened drinks associated with higher blood pressure - Science
Daily, 3/1/11 - "for every extra sugar-sweetened
beverage drunk per day participants on average had significantly higher
systolic blood pressure by 1.6 millimeters of mercury (mm Hg) and diastolic
blood pressure higher by 0.8 mm Hg ... They found no consistent association
between diet soda intake and blood pressure levels. Those who drank diet
soda had higher mean BMI than those who did not and lower levels of physical
activity ... One possible mechanism for sugar-sweetened beverages and
fructose increasing blood pressure levels is a resultant increase in the
level of uric acid in the blood that may in turn lower the nitric oxide
required to keep the blood vessels dilated. Sugar consumption also has been
linked to enhanced sympathetic nervous system activity and sodium retention"
-
Highest Mortality Risk Seen With High-Fat Dairy and High Sugar Intake -
Medscape, 12/23/10 - "Compared to people who ate
healthy foods, men and women in their 70s had a 40% higher risk of death if
they got most of their calories from high-fat dairy foods or from sweets and
desserts" - I'd take that one study with a grain of salt. In regard
to dairy, it contradicts this analysis of many studies.
-
Milk and dairy
consumption and incidence of cardiovascular diseases and all-cause
mortality: dose-response meta-analysis of prospective cohort studies
- Am J Clin Nutr. 2011 Jan;93(1):158-71 -
"PubMed, EMBASE, and SCOPUS were searched for articles published up to
February 2010. Of >5000 titles evaluated, 17 met the inclusion criteria,
all of which were original prospective cohort studies ... A modest
inverse association was found between milk intake and risk of overall
CVD [4 studies; relative risk (RR): 0.94 per 200 mL/d; 95% CI: 0.89,
0.99]. Milk intake was not associated with risk of CHD (6 studies; RR:
1.00; 95% CI: 0.96, 1.04), stroke (6 studies; RR: 0.87; 95% CI: 0.72,
1.05), or total mortality (8 studies; RR per 200 mL/d: 0.99; 95% CI:
0.95, 1.03). Limited studies of the association of total dairy products
and of total high-fat and total low-fat dairy products (per 200 g/d)
with CHD showed no significant associations"
-
Excess fructose may play role in diabetes, obesity and other health
conditions - Science Daily, 11/22/10 - "The link
between excessive intake of fructose and metabolic syndrome is becoming
increasingly established. However, in this review of the literature, the
authors conclude that there is also increasing evidence that fructose may
play a role in hypertension and renal disease. "Science shows us there is a
potentially negative impact of excessive amounts of sugar and high fructose
corn syrup on cardiovascular and kidney health," explains Dr. Johnson. He
continues that "excessive fructose intake could be viewed as an increasingly
risky food and beverage additive.""
-
Fructose-rich beverages associated with increased risk of gout in women
- Science Daily, 11/10/10 - "Compared with
consumption of less than 1 serving per month, women who consumed one serving
per day had a 74 percent increased risk of gout; and those with 2 or more
servings per day had a 2.4 times higher risk ... Orange juice intake was
also associated with risk of gout. Compared with women who consumed less
than a glass (6 oz.) of orange juice per month, women who consumed 1 serving
per day had a 41 percent higher risk of gout, and there was a 2.4 times
higher risk with 2 or more servings per day"
-
Pancreatic cancers use fructose, common in the Western diet, to fuel their
growth - Science Daily, 8/2/10 - "The bottom
line is the modern diet contains a lot of refined sugar including fructose
and it's a hidden danger implicated in a lot of modern diseases, such as
obesity, diabetes and fatty liver ... the pancreatic cancer cells could
easily distinguish between glucose and fructose even though they are very
similar structurally, and contrary to conventional wisdom, the cancer cells
metabolized the sugars in very different ways. In the case of fructose, the
pancreatic cancer cells used the sugar in the transketolase-driven
non-oxidative pentose phosphate pathway to generate nucleic acids, the
building blocks of RNA and DNA, which the cancer cells need to divide and
proliferate"
-
High
fructose diet may contribute to high blood pressure, study finds -
Science Daily, 7/1/10 - "people who consumed a diet
of 74 grams or more per day of fructose (corresponding to 2.5 sugary soft
drinks per day) had a 26%, 30%, and 77% higher risk for blood pressure
levels of 135/85, 140/90, and 160/100 mmHg, respectively. (A normal blood
pressure reading is below 120/80 mmHg.)"
-
High
fructose, trans fats lead to significant liver disease, says study -
Science Daily, 6/22/10 - "mice fed the normal
calorie chow diet remained lean and did not have fatty liver disease. Mice
fed high calorie diets (trans-fat alone or a combination of trans-fat and
high fructose) became obese and had fatty liver disease ... it was only the
group fed the combination of trans-fat and high fructose which developed the
advanced fatty liver disease which had fibrosis ... This same group also had
increased oxidative stress in the liver, increased inflammatory cells, and
increased levels of plasma oxidative stress markers"
-
Fructose sugar makes maturing human fat cells fatter, less
insulin-sensitive, study finds
- Science Daily, 6/21/10 - "high levels of fructose,
which may result from eating a diet high in fructose, throughout childhood
may lead to an increase in visceral [abdominal] obesity, which is associated
with increased cardiometabolic risk ... For both types of fat cells,
maturation in fructose decreased the cells' insulin sensitivity, which is
the ability to successfully take up glucose from the bloodstream into fat
and muscles. Decreased insulin sensitivity is a characteristic of Type 2
diabetes"
-
Drinking fewer sugar-sweetened beverages may lower blood pressure -
Science Daily, 5/24/10 - ""Our findings suggest that
reducing sugar-sweetened beverages and sugar consumption may be an important
dietary strategy to lower blood pressure and further reduce other blood
pressure-related diseases," Chen said. "It has been estimated that a
3-millimeters of mercury (mm Hg) reduction in systolic blood pressure should
reduce stroke mortality by 8 percent and coronary heart disease mortality by
5 percent. Such reductions in systolic blood pressure would be anticipated
by reducing sugar-sweetened beverages consumption by an average of 2
servings per day ... a reduction of one serving/day of SSB was associated
with a 1.8 millimeters of mercury (mm Hg) drop in systolic pressure and a
1.1 mm Hg decline in diastolic pressure over 18 months"
-
Study: Too Much Sugar Increases Heart Risks - Time Magazine, 4/21/10 -
"Compared with people consuming less than 5% of
their daily calories in added sugar, those in the highest consumption group
— who got 25% or more of their daily calories in added sugar — were twice as
likely to have low levels of HDL cholesterol, the beneficial lipid that mops
up artery-clogging LDL cholesterol. According to government health
guidelines, HDL levels below 50 mg/dL for women and 40 mg/dL for men are
considered low; 43% of the highest sugar consumers recorded low HDL, while
only 22% of the lowest sugar consumers did ... People eating the most added
sugar also recorded the highest triglyceride levels ... Low HDL and high
triglyceride levels are two of the primary risk factors for heart disease"
-
High
fructose corn syrup linked to liver scarring, research suggests -
Science Daily, 3/22/10 - "The researchers found only
19 percent of adults with NAFLD reported no intake of fructose-containing
beverages, while 52 percent consumed between one and six servings a week and
29 percent consumed fructose-containing beverages on a daily basis"
-
High-fructose corn syrup prompts considerably more weight gain, researchers
find - Science Daily, 3/22/10
-
Drinking sugar-sweetened beverages daily linked to diabetes - Science
Daily, 3/6/10 - "Using the Coronary Heart Disease
(CHD) Policy Model, a well-established computer simulation model of the
national population age 35 and older, researchers estimate that the
increased consumption of sugar-sweetened beverages between 1990 and 2000
contributed to 130,000 new cases of diabetes, 14,000 new cases of coronary
heart disease (CHD), and 50,000 additional life-years burdened by coronary
heart disease over the past decade"
-
Soft
drink consumption may markedly increase risk of pancreatic cancer -
Science Daily, 2/8/10 - "Consuming two or more soft
drinks per week increased the risk of developing pancreatic cancer by nearly
twofold compared to individuals who did not consume soft drinks" - [Abstract]
-
High Fructose Intake Linked to Metabolic Syndrome, Kidney Disease -
Science Daily, 1/14/10 - "men who were randomized to
receive 200 g fructose daily for 2 weeks without or without allopurinol ...
Fructose intake was associated with an average increase in systolic and
diastolic blood pressure of 7 and 5 mm Hg, respectively ... Mean fasting
triglyceride levels rose by 0.62 mmol/L (p < 0.002), while high-density
lipoprotein cholesterol levels fell by 0.06 mmol/L ... the prevalence of
metabolic syndrome increased by 25% to 33%"
-
Sugary cola drinks linked to higher risk of gestational diabetes -
Science Daily, 11/30/09
-
High
Fructose Corn Syrup: A Recipe For Hypertension, Study Finds - Science
Daily, 11/10/09 - "people who ate or drank more than
74 grams per day of fructose (2.5 sugary soft drinks per day) increased
their risk of developing hypertension. Specifically, a diet of more than 74
grams per day of fructose led to a 28%, 36%, and 87% higher risk for blood
pressure levels of 135/85, 140/90, and 160/100 mmHg, respectively. (A normal
blood pressure reading is below 120/80 mmHg.)"
-
High Fructose Intake May Raise Blood Pressure - WebMD, 11/2/09 -
"About 2.5 sugary soft drinks a day is enough to
elevate the pressure ... Overall, intakes of 74 grams or more daily was
associated with a 36% higher risk of having blood pressure of 140/90 or
higher, she found. Ideally, blood pressure should be below 120/80 ... ''We
know that fructose has the potential to reduce nitric oxide production
within the blood vessels,'' she says. "Nitric oxide relaxes the vessel and
is supposed to lower blood pressure. Fructose reduces the production of
nitric oxide and makes it difficult for the vessels to relax and dilate."
... Fructose also raises uric acid in the blood, she says, and that could
raise blood pressure. "Fructose can tell the kidneys to 'hold onto' more
salt, and that can contribute to high blood pressure,""
-
Health Buzz: Fructose-Heavy Diet Linked to Hypertension and Other Health
News - US News and World Report, 9/24/09 - "A
small study is among the first to show that regular consumption of
fructose-heavy foods and drinks might raise blood pressure—at least in men"
-
Heat
Forms Potentially Harmful Substance In High-fructose Corn Syrup -
Science Daily, 8/26/09
-
Eating High Levels Of Fructose Impairs Memory In Rats - Science Daily,
7/16/09 -
"What we discovered is that the fructose diet
doesn't affect their ability to learn ... But they can't seem to remember as
well where the platform was when you take it away. They swam more randomly
than rats fed a control diet"
-
Fructose-Sweetened Beverages Linked to Heart Risks - NYTimes.com,
4/23/09 - "a controlled and randomized study has
found that drinks sweetened with fructose led to higher blood levels of
L.D.L, or "bad" cholesterol, and triglycerides in overweight test subjects,
while drinks sweetened with another sugar, glucose, did not. Both L.D.L. and
triglycerides have been linked to an increased risk of cardiovascular
disease"
-
Fresh Take on Fructose vs. Glucose - WebMD, 4/21/09 -
"Both the groups gained weight during the trial, but
imaging studies revealed that most of the added fat in the fructose group
occurred in the belly, while most of the fat gained by the glucose group was
subcutaneous (under the skin) ... Belly fat, but not subcutaneous fat, has
been linked to an increased risk for heart disease and diabetes ... The
fructose group had higher total cholesterol and LDL "bad" cholesterol, plus
greater insulin resistance, which are consistent with metabolic syndrome,
while the glucose group did not"
-
High fructose corn syrup: How
dangerous is it? - MSNBC, 4/17/09
-
Fructose Metabolism By The Brain Increases Food Intake And Obesity, Review
Suggests - Science Daily, 3/25/09
-
Not
So Sweet: Over-consumption Of Sugar Linked To Aging - Science Daily,
3/9/09 - "We know that lifespan can be extended in
animals by restricting calories such as sugar intake ...it's not sugar
itself that is important in this process but the ability of cells to sense
its presence ... the lifespan of yeast cells increased when glucose was
decreased from their diet. They then asked whether the increase in lifespan
was due to cells decreasing their ability to produce energy or to the
decrease in signal to the cells by the glucose sensor ... cells unable to
consume glucose as energy source are still sensitive to the pro-aging
effects of glucose. Conversely, obliterating the sensor that measures the
levels of glucose significantly increased lifespan"
-
Why
Diets High In High-fructose Corn Syrup (found In Soda And Processed Foods)
Can Lead To Insulin Resistance - Science Daily, 3/3/09 -
"mice on a high-fructose diet were protected from
insulin resistance when a gene known as transcriptional coactivator PPARg
coactivator-1b (PGC-1b) was "knocked down" in the animals' liver and fat
tissue ... Fructose is much more readily metabolized to fat in the liver
than glucose is and in the process can lead to nonalcoholic fatty liver
disease ... NAFLD in turn leads to hepatic insulin resistance and type II
diabetes"
-
Fructose-sweetened Drinks Increase Nonfasting Triglycerides In Obese Adults
- Science Daily, 2/12/09 - "Obese people who drink
fructose-sweetened beverages with their meals have an increased rise of
triglycerides following the meal ... Increased triglycerides after a meal
are known predictors of cardiovascular disease"
-
Mercury in Some High Fructose Corn Syrup? - WebMD, 1/27/09 -
"we found detectable mercury in 17 of 55 samples, or
around 31%"
-
High-Fructose Corn Syrup’s Bad Rap Unfair? - WebMD, 12/11/08
-
Fructose Metabolism More Complicated Than Was Thought - Science Daily,
12/9/08
-
New data: High-fructose corn syrup no worse than sugar - USATODAY.com,
12/8/08 - "Now, the tide of research, if not public
opinion, has shifted. This week, five papers published in a supplement to
Clinical Nutrition find no special link between consumption of high-fructose
corn syrup and obesity ... It doesn't appear that when you consume
high-fructose corn syrup, you have any different total effect on appetite
than if you consume any other sugar"
-
Fructose -- Found In High-fructose Corn Syrup, Sugar -- Sets Table For
Weight Gain Without Warning - Science Daily, 10/16/08 -
"Eating too much fructose can induce leptin
resistance, a condition that can easily lead to becoming overweight when
combined with a high-fat, high-calorie diet"
-
High Fructose Corn Syrup: Too Sweet to Eat? - Dr. Weil, 9/1/08
-
Fructose May Make You Fatter - WebMD, 7/31/08 -
"Fructose gets made into fat more quickly, and when that process is turned
on there seems to be a signal that goes to the liver that says store all the
other fats you are seeing"
-
Limiting Fructose May Boost Weight Loss, Researcher Reports - Science
Daily, 7/24/08 - "One of the reasons people on
low-carbohydrate diets may lose weight is that they reduce their intake of
fructose, a type of sugar that can be made into body fat quick ... Fructose,
on the other hand, enters this metabolic pathway downstream, bypassing the
traffic cop and flooding the metabolic pathway"
-
High Fructose Corn Syrup Gets Unlikely Ally - WebMD, 6/18/08 -
"At a meeting in Chicago, AMA delegates backed a
resolution that argues that there's no scientific proof that high fructose
corn syrup deserves the blame for obesity more than sugar or other caloric
sweeteners. The resolution also nixes putting warning labels on products
containing high fructose corn syrup"
-
Sweet Soft Drinks,
Fructose Linked to Increased Risk for Gout - Medscape, 2/4/08
-
Blame
Sweet Soda for Gout? - WebMD, 1/31/08 -
"Compared with men who almost never drank sugar-sweetened soft drinks --
fewer than one per month -- frequent soft-drink drinkers were significantly
more likely to suffer gout: ... Two or more soft drinks each day upped gout
risk by 85% ... One soft drink each day upped gout risk by 45% ... Five or
six soft drinks each week upped gout risk by 29%"
-
Too
Much Fructose Could Leave Dieters Sugar Shocked - Science Daily,
12/13/07 - "Eating too much fructose causes uric
acid levels to spike, which can block the ability of insulin to regulate how
body cells use and store sugar and other nutrients for energy, leading to
obesity, metabolic syndrome and type 2 diabetes"
-
Too
Much Sugar Turns Off Gene That Controls Effects Of Sex Steroids -
Science Daily, 11/21/07 - "This discovery reinforces
public health advice to eat complex carbohydrates and avoid sugar ...
Glucose and fructose are metabolized in the liver. When there’s too much
sugar in the diet, the liver converts it to lipid. Using a mouse model and
human liver cell cultures, the scientists discovered that the increased
production of lipid shut down a gene called SHBG (sex hormone binding
globulin), reducing the amount of SHBG protein in the blood. SHBG protein
plays a key role in controlling the amount of testosterone and estrogen
that’s available throughout the body"
-
Sugary Drinks, Not Fruit Juice, May Be Linked To Insulin - Science
Daily, 9/5/07 - "Study participants who consumed two
or more sugar-sweetened beverages per day had significantly higher fasting
blood levels of insulin as compared to participants who did not report
consuming any such beverages, regardless of age, sex, weight, smoking
status, or other dietary habits ... Higher fasting levels of insulin mean
these study participants are more at risk for developing Type 2 diabetes ...
consumption of 100 percent fruit juice was not significantly related to any
of our measures of insulin resistance"
-
Soda
Warning? High-fructose Corn Syrup Linked To Diabetes, New Study Suggests
- Science Daily, 8/23/07 - "high-fructose corn syrup
(HFCS) ... Chi-Tang Ho, Ph.D., conducted chemical tests among 11 different
carbonated soft drinks containing HFCS. He found 'astonishingly high' levels
of reactive carbonyls in those beverages. These undesirable and
highly-reactive compounds associated with "unbound" fructose and glucose
molecules are believed to cause tissue damage ... Ho estimates that a single
can of soda contains about five times the concentration of reactive
carbonyls than the concentration found in the blood of an adult person with
diabetes ... adding epigallocatechin gallate (EGCG), a compound in tea,
significantly reduced the levels of reactive carbonyl species in a
dose-dependent manner when added to the carbonated soft drinks studied. In
some cases, the levels of reactive carbonyls were reduced by half"
-
Not
Enough Evidence To Indict High Fructose Corn Syrup In Obesity - Science
Daily, 7/27/07
-
Fructose: Sugar's Dark Side? - WebMD, 6/25/07
-
Fructose-Sweetened Drinks Tougher on Arteries - washingtonpost.com,
6/23/07 - "Fructose-sweetened drinks are more likely
to provoke the development of fatty artery deposits in overweight adults
than glucose-sweetened beverages ... Those who drank fructose-sweetened
drinks also had a boost in fasting blood concentrations of LDL ("bad")
cholesterol and other measures. Those levels were unaltered in those
consuming glucose-sweetened drinks, however"
-
Fructose-sweetened Beverages Increases Risk Of Obesity In Rats - Science
Daily, 3/16/07
-
Fructose-sweetened Beverages Increases Risk Of Diabetes In Rats -
Science Daily, 3/15/07
-
Sugar intake may hurt liver - Reuters, 10/31/06 -
"fatty liver disease was more common in the group
given sugar water, especially when exposed to a type of sugar called
fructose ... These data support the hypothesis that high fructose
consumption may not only (damage) the liver through over-feeding, but may be
directly" toxic"
-
Obesity and Fatty Liver disease - MedicineNet.com -
"Doctors also are using medications to treat non
alcoholic fatty liver disease. For example, insulin-sensitizing agents,
such as the thiazolidinediones,
pioglitazone
(Actos) and
rosiglitazone
(Avandia), and metformin (Glucophage)
not only help to control blood glucose in patients with diabetes, but
they also improve enzyme levels in patients with non alcoholic fatty
liver disease"
- See pioglitazone or rosiglitazone at
OffshoreRx1.com,
XlPharmacy
or
SuperSaverMeds.com.
-
Avandia Positively Impacts On Factors Linked With Insulin Resistance
- Doctor's Guide, 9/18/00 - "Increased deposits
of fat around the internal organs and in the liver are commonly
associated with insulin resistance and are found in many type 2 diabetes
patients ... Avandia helps prevent accumulation of fat around the
internal organs and significantly reduces hepatic fat"
-
Is Fructose Dangerous? - thenutritionreporter.com
Abstracts:
-
Consumption
of artificially and sugar-sweetened beverages and incident type 2 diabetes in
the Etude Epidemiologique aupres des femmes de la Mutuelle Generale de
l'Education Nationale-European Prospective Investigation into Cancer and
Nutrition cohort - Am J Clin Nutr. 2013 Jan 30 - "It
has been extensively shown, mainly in US populations, that sugar-sweetened
beverages (SSBs) are associated with increased risk of type 2 diabetes (T2D),
but less is known about the effects of artificially sweetened beverages (ASBs)
... A total of 66,118 women were followed from 1993, and 1369 incident cases of
T2D were diagnosed during the follow-up ... Compared with nonconsumers, women in
the highest quartiles of SSB and ASB consumers were at increased risk of T2D
with HRs (95% CIs) of 1.34 (1.05, 1.71) and 2.21 (1.56, 3.14) for women who
consumed >359 and >603 mL/wk of SSBs and ASBs, respectively. Strong positive
trends in T2D risk were also observed across quartiles of consumption for both
types of beverage (P = 0.0088 and P < 0.0001, respectively) ... No association
was observed for 100% fruit juice consumption"
-
Caffeinated
and caffeine-free beverages and risk of type 2 diabetes - Am J Clin Nutr.
2012 Nov 14 - "observed 74,749 women from the Nurses'
Health Study (NHS, 1984-2008) and 39,059 men from the Health Professionals
Follow-Up Study (HPFS, 1986-2008) ... sugar-sweetened beverages (SSBs), and
carbonated artificially sweetened beverages (ASBs) ... caffeinated and
caffeine-free SSB intake was significantly associated with a higher risk of T2D
in the NHS (RR per serving: 13% for caffeinated SSB, 11% for caffeine-free SSB;
P < 0.05) and in the HPFS (RR per serving: 16% for caffeinated SSB, 23% for
caffeine-free SSB; P < 0.01). Only caffeine-free ASB intake in NHS participants
was associated with a higher risk of T2D (RR: 6% per serving; P < 0.001).
Conversely, the consumption of caffeinated and decaffeinated coffee was
associated with a lower risk of T2D [RR per serving: 8% for both caffeinated and
decaffeinated coffee in the NHS (P < 0.0001) and 4% for caffeinated and 7% for
decaffeinated coffee in the HPFS (P < 0.01)]. Only caffeinated tea was
associated with a lower T2D risk among NHS participants"
-
Soft drink,
100% fruit juice, and vegetable juice intakes and risk of diabetes mellitus
- Clin Nutr. 2012 Aug 13 - "A total of 484 men and 340
women reported newly diagnosed diabetes during10 years. High soft drink intake
was associated with increased risk of type 2 diabetes in women but not men; odds
ratio (95% CI) for women with almost daily consumption versus non-consumers was
2.10 (1.23-3.59; P-trend = 0.004) and 1.79 (1.11-2.89; P-trend = 0.01) at 5 and
10 years, respectively. The association was evident in overweight, highly
educated and premenopausal women, and women with blue collar job. Intakes of
100% fruit juice and vegetable juice were not associated with risk of type 2
diabetes for either gender (P-trend >0.05)"
-
Fructose
consumption leads to reduced aerobic capacity and to liver injury in rats -
Lipids Health Dis. 2012 Jun 19;11(1):78 - "We separated
twenty-eight rats into two groups according to diet: a control group (C)
(balanced diet) and a fructose group (F) (fed a diet containing fructose as 60%
of the total caloric intake) ... The animals fed a fructose-rich diet exhibited
a reduction in aerobic capacity, glucose tolerance and insulin sensitivity and
increased concentrations of triglycerides and TBARS in the liver. Catalase and
SOD activities were reduced in the livers of the fructose-fed animals. In
addition, the serum AST/ALT ratio was higher than that of the C group, which
indicates hepatic damage, and the damage was confirmed by histology. In
conclusion, the fructose-rich diet caused significant liver damage and a
reduction in insulin sensitivity in the animals, which could lead to deleterious
metabolic effects"
-
Consumption
of sugar-sweetened beverages in relation to stroke: a case-control study -
Int J Food Sci Nutr. 2012 Jun 14 - "No statistically
significant association was found between habitual intakes of SSBs and stroke"
-
"Metabolic
syndrome" in the brain: Deficiency in omega-3-fatty acid exacerbates
dysfunctions in insulin receptor signaling and cognition - J Physiol. 2012
Apr 2 - "high-dietary fructose consumption leads to
increase in insulin resistance index, insulin and triglyceride levels, which
characterize MetS. Rats fed on an n-3 deficient diet showed memory deficits in
Barnes Maze, which were further exacerbated by fructose intake. In turn, n-3
deficient diet and fructose interventions disrupted insulin receptor signaling
in hippocampus as evidenced by a decrease in phosphorylation of insulin receptor
and its downstream effector Akt. We found that high fructose consumption with
n-3 deficient diet disrupts membrane homeostasis as evidenced by an increase in
the ratio of n-6/n-3 fatty acids and levels of 4-hydroxynonenal (4-HNE), a
marker of lipid peroxidation. Disturbances in brain energy metabolism due to n-3
deficiency and fructose treatments were evidenced by a significant decrease in
AMPK phosphorylation and its upstream modulator LKB1 as well as a decrease in
Sir2 levels. The decrease in phosphorylation of CREB, synapsin I and
synaptophysin (SYP) levels by n-3 deficiency and fructose shows the impact of
metabolic dysfunction on synaptic plasticity. All parameters of metabolic
dysfunction related to the fructose treatment were ameliorated by the presence
of dietary n-3 fatty acid. Results showed that dietary n-3 fatty acid deficiency
elevates the vulnerability to metabolic dysfunction and impaired cognitive
functions by modulating insulin receptor signaling and synaptic plasticity"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
-
COFFEE,
TEA AND SUGAR-SWEETENED CARBONATED SOFT DRINK INTAKE AND PANCREATIC CANCER
RISK: A POOLED ANALYSIS OF 14 COHORT STUDIES - Cancer Epidemiol
Biomarkers Prev. 2011 Dec 22 - "Sugar-sweetened
carbonated soft drink (abbreviated as SSB) intake has been associated with
higher circulating levels of insulin, which may promote carcinogenesis. Few
prospective studies have examined SSB intake and pancreatic cancer risk;
results have been heterogeneous ... pooled analysis from 14 prospective
cohort studies ... No statistically significant associations were observed
between pancreatic cancer risk and intake of coffee (MVRR=1.10, 95%
CI=0.81-1.48 comparing >900 to <0g/day; 237g≈8oz), tea (MVRR=0.96, 95%
CI=0.78-1.16 comparing >400 to 0g/day; 237g≈8oz) or SSB (MVRR=1.19, 95%
CI=0.98-1.46 comparing >250 to 0g/day; 355g≈12oz) (p-value, test for
between-studies heterogeneity >0.05). These associations were consistent
across levels of sex, smoking status and body mass index. When modeled as a
continuous variable, a positive association was evident for SSB (MVRR=1.06,
95% CI=1.02-1.12)"
-
Consumption of Fructose and High Fructose Corn Syrup Increase Postprandial
Triglycerides, LDL-Cholesterol, and Apolipoprotein-B in Young Men and Women
- J Clin Endocrinol Metab. 2011 Aug 17 - "The
American Heart Association Nutrition Committee recommends women and men
consume no more than 100 and 150 kcal of added sugar per day, respectively,
whereas the Dietary Guidelines for Americans, 2010, suggests a maximal added
sugar intake of 25% or less of total energy ... To address this discrepancy,
we compared the effects of consuming glucose, fructose, or high-fructose
corn syrup (HFCS) at 25% of energy requirements (E) on risk factors for
cardiovascular disease ... Twenty-four-hour triglyceride area under the
curve was increased compared with baseline during consumption of fructose
(+4.7 +/- 1.2 mmol/liter × 24 h, P = 0.0032) and HFCS (+1.8 +/- 1.4
mmol/liter × 24 h, P = 0.035) but not glucose (-1.9 +/- 0.9 mmol/liter × 24
h, P = 0.14). Fasting LDL and apoB concentrations were increased during
consumption of fructose (LDL: +0.29 +/- 0.082 mmol/liter, P = 0.0023; apoB:
+0.093 +/- 0.022 g/liter, P = 0.0005) and HFCS (LDL: +0.42 +/- 0.11
mmol/liter, P < 0.0001; apoB: +0.12 +/- 0.031 g/liter, P < 0.0001) but not
glucose (LDL: +0.012 +/- 0.071 mmol/liter, P = 0.86; apoB: +0.0097 +/- 0.019
g/liter, P = 0.90). Conclusions: Consumption of HFCS-sweetened beverages for
2 wk at 25% E increased risk factors for cardiovascular disease comparably
with fructose and more than glucose in young adults"
-
Sucrose,
high-sugar foods and risk of endometrial cancer - a population-based cohort
study - Cancer Epidemiol Biomarkers Prev. 2011 Jul 15 -
"During 18.4 years of follow-up, 729 participants
were diagnosed with incident endometrial cancer. Total sucrose intake and
consumption of sweet buns and cookies was associated with increased risk of
endometrial cancer. RRs (with 95% CIs) for consuming more than 35 grams of
sucrose/day and consuming sweet buns and cookies more than 3 times/week were
1.36 (1.04-1.77) and 1.42 (1.15-1.75) as compared to less than 15 grams of
sucrose/day and consuming sweet buns and cookies less than 0.5 times/week,
respectively. RRs for consuming more than 15 grams of sucrose/day as
compared to 15 grams or less were 1.97 (1.27-3.04) among obese women and
1.56 (1.20-2.04) among women with low fat intake"
-
Habitual
sugar intake and cognitive function among middle-aged and older Puerto
Ricans without diabetes - Br J Nutr. 2011 Jun 1:1-10 -
"Intake of added sugars, mainly fructose and
sucrose, has been associated with risk factors for cognitive impairment,
such as obesity, the metabolic syndrome and type 2 diabetes. The objective
of this analysis was to examine whether habitual intakes of total sugars,
added sugars, sugar-sweetened beverages or sweetened solid foods are
associated with cognitive function. The present study included 737
participants without diabetes, aged 45-75 years, from the Boston Puerto
Rican Health Study, 2004-9. Cognitive function was measured with a battery
of seven tests: Mini-Mental State Examination (MMSE), word list learning,
digit span, clock drawing, figure copying, and Stroop and verbal fluency
tests. Usual dietary intake was assessed with a validated FFQ. Greater
intakes of total sugars, added sugars and sugar-sweetened beverages, but not
of sugar-sweetened solid foods, were significantly associated with lower
MMSE score, after adjusting for covariates. Adjusted OR for cognitive
impairment (MMSE score < 24) were 2.23 (95 % CI 1.24, 3.99) for total sugars
and 2.28 (95 % CI 1.26, 4.14) for added sugars, comparing the highest with
lowest intake quintiles. Greater intake of total sugars was also
significantly associated with lower word list learning score. In conclusion,
higher sugar intake appears to be associated with lower cognitive function,
but longitudinal studies are needed to clarify the direction of causality"
-
Exercise
counteracts fatty liver disease in rats fed on fructose-rich diet -
Lipids Health Dis. 2010 Oct 14;9(1):116 - "The
fructose-fed rats showed decreased insulin sensitivity, and the
late-exercise training protocol counteracted this alteration. There was no
difference between the groups in levels of serum ALT, whereas AST and liver
lipids increased in the fructose-fed sedentary group when compared with the
other groups. Serum triglycerides concentrations were higher in the
fructose-fed trained groups when compared with the corresponding control
group"
-
Sugar
Sweetened Beverages and Risk of Metabolic Syndrome and Type 2 Diabetes: A
Meta-analysis - Diabetes Care. 2010 Aug -
"sugar-sweetened beverages (SSBs), which include soft drinks, fruit drinks,
iced tea, energy and vitamin water drinks ... Based on data from these
studies, including 310,819 participants and 15,043 cases of T2DM,
individuals in the highest quantile of SSB intake (most often 1-2
servings/day) had a 26% greater risk of developing T2DM than those in the
lowest quantile (none or < 1 serving/month) (RR:1.26 (95% CI: 1.12, 1.41)).
Among studies evaluating MetSyn, including 19,431 participants and 5,803
cases, the pooled RR was 1.20 (95% CI: 1.02, 1.42)"
-
Nutrition and aging skin: sugar and glycation - Clin Dermatol. 2010
Jul-Aug;28(4):409-11 - "The effect of sugars on
aging skin is governed by the simple act of covalently cross-linking two
collagen fibers, which renders both of them incapable of easy repair.
Glucose and fructose link the amino acids present in the collagen and
elastin that support the dermis, producing advanced glycation end products
or "AGEs." This process is accelerated in all body tissues when sugar is
elevated and is further stimulated by ultraviolet light in the skin. The
effect on vascular, renal, retinal, coronary, and cutaneous tissues is being
defined, as are methods of reducing the glycation load through careful diet
and use of supplements"
-
Sweetened beverage consumption and risk of coronary heart disease in women
- Am J Clin Nutr. 2009 Feb 11 - "sugar-sweetened
beverages (SSBs) ... After standard and dietary risk factors were adjusted
for, the RRs (and 95% CIs) of CHD according to categories of cumulative
average of SSB consumption (<1/mo, 1-4/mo, 2-6/wk, 1/d, and >/=2 servings/d)
were 1.0, 0.96 (0.87, 1.06), 1.04 (0.95, 1.14), 1.23 (1.06, 1.43), and 1.35
(1.07, 1.69)"
-
Dietary
Green Tea Extract Lowers Plasma and Hepatic Triglyceride and Decreases the
Expression of Sterol Regulatory Element-Binding Protein-1c mRNA and Its
Responsive Genes in Fructose-Fed Ovariectomized Rats - J Nutr. 2009 Feb
4 - "Fructose elevated plasma TG and cholesterol
compared with the S group. GT at 0.5 and 1.0% markedly lowered plasma and
liver TG. Fructose increased the expression of SREBP-1c, fatty acid
synthase, and stearoyl-CoA desaturase 1 mRNAs in the liver, whereas GT
decreased the expression of these lipogenic genes. Similarly, fructose
increased the abundance of hepatic 3-hydroxy-3-methyl-glutaryl-CoA reductase
mRNA, whereas GT significantly decreased its expression ... the
lipid-lowering effect of GT is mediated partly by its inhibition of hepatic
lipogenesis involving SREBP-1c and its responsive genes without affecting
lipoprotein assembly"
- See
green tea extract at Amazon.com.
-
Straight
talk about high-fructose corn syrup: what it is and what it ain't - Am J
Clin Nutr. 2008 Dec;88(6):1716S-1721S - "Although
examples of pure fructose causing metabolic upset at high concentrations
abound, especially when fed as the sole carbohydrate source, there is no
evidence that the common fructose-glucose sweeteners do the same. Thus,
studies using extreme carbohydrate diets may be useful for probing
biochemical pathways, but they have no relevance to the human diet or to
current consumption. I conclude that the HFCS-obesity hypothesis is
supported neither in the United States nor worldwide"
-
Fructose
consumption and consequences for glycation, plasma triacylglycerol, and body
weight: meta-analyses and meta-regression models of intervention studies
- Am J Clin Nutr. 2008 Nov;88(5):1419-37 - "The
meta-analysis shows that fructose intakes from 0 to >or=90 g/d have a
beneficial effect on HbA(1c). Significant effects on postprandial
triacylglycerols are not evident unless >50 g fructose/d is consumed, and no
significant effects are seen for fasting triacylglycerol or body weight with
intakes of <or=100 g fructose/d in adults" - I don't get it. It
would seem like fructose would make HbA(1c) worse.
-
Dietary fructose and the metabolic syndrome - Curr Opin Gastroenterol.
2008 Mar;24(2):204-9 - "Recent animal studies have
confirmed the link between fructose feeding and increased plasma uric acid,
a potentially causative factor in metabolic syndrome. Advanced glycation end
products are also implicated because of their direct protein modifications
and indirect effects on inflammation and oxidative stress. Human studies
have demonstrated fructose's ability to change metabolic hormonal response,
possibly contributing to decreased satiety ... There is much evidence from
both animal models and human studies supporting the notion that fructose is
a highly lipogenic nutrient that, when consumed in high quantities,
contributes to tissue insulin insensitivity, metabolic defects, and the
development of a prediabetic state"
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Sugar-sweetened soft drinks, diet soft drinks, and serum uric acid level:
The third national health and nutrition examination survey - Arthritis
Rheum. 2007 Dec 28;59(1):109-116 - "sugar-sweetened
soft drink consumption is associated with serum uric acid levels and
frequency of hyperuricemia, but diet soft drink consumption is not"
-
Dietary glycemic load, added sugars, and carbohydrates as risk factors for
pancreatic cancer: the Multiethnic Cohort Study - Am J Clin Nutr. 2007
Nov;86(5):1495-501 - "Glycemic load and added sugars
were not significantly associated with pancreatic cancer risk. The risk
increased with higher intakes of total sugars, fructose, and sucrose, and
the association with fructose was significant when the highest and lowest
quartiles were compared (relative risk: 1.35; 95% CI: 1.02, 1.80; P for
trend = 0.046). A significant association was found with fruit and juices
intake (1.37; 1.02, 1.84; P for trend = 0.04) but not with soda intake.
Statistical evidence of a significant interaction with body mass index was
present only for sucrose intake (P = 0.04). A comparison of the highest and
lowest quartiles of sucrose intake in overweight or obese participants gave
a relative risk of 1.46 (0.95-2.25; P for trend = 0.04), but the comparison
was not significant in normal-weight participants"
-
Fructose intake is a predictor of LDL particle size in overweight
schoolchildren - Am J Clin Nutr. 2007 Oct;86(4):1174-1178 -
"After control for adiposity, the only dietary
factor that was a significant predictor of LDL particle size was total
fructose intake"
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Potential role of sugar (fructose) in the epidemic of hypertension, obesity
and the metabolic syndrome, diabetes, kidney disease, and cardiovascular
disease - Am J Clin Nutr. 2007 Oct;86(4):899-906 -
"We also present evidence that the unique ability of
fructose to induce an increase in uric acid may be a major mechanism by
which fructose can cause cardiorenal disease"
-
Consumption of sweetened beverages and intakes of fructose and glucose
predict type 2 diabetes occurrence - J Nutr. 2007 Jun;137(6):1447-54 -
"Combined intake of fructose and glucose was
associated with the risk of type 2 diabetes but no significant association
was observed for intakes of sucrose, lactose, or maltose. The relative risk
between the highest and lowest quartiles of combined fructose and glucose
intake was 1.87"
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High fructose diet increases mortality in hypertensive rats compared to a
complex carbohydrate or high fat diet - Am J Hypertens. 2007
Apr;20(4):403-9 - "a high fructose diet consumed
during hypertension increases mortality and left ventricular (LV) wall
thickness compared to either a high fat, high starch, or a "western" diet"
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A 4-wk high-fructose diet alters lipid metabolism without affecting insulin
sensitivity or ectopic lipids in healthy humans - Am J Clin Nutr. 2006
Dec;84(6):1374-9 - "Moderate fructose
supplementation over 4 wk increases plasma triacylglycerol and glucose
concentrations without causing ectopic lipid deposition or insulin
resistance in healthy humans"
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Catalytic amounts of fructose may improve glucose tolerance in subjects with
uncontrolled non-insulin-dependent diabetes - Clin Nutr. 2006 Jan 3 -
"were assigned to either fructose or maltodextrin
supplementation (7.5g) tri-daily after each main meal ... After 1 month
fructosamin levels decreased in the fructose-supplemented group but not in
the maltodextrin-supplemented group (P<0.052). Hgb(A1C) levels decreased
with time in both groups but were significantly lower at 2 months in the
fructose group as compared to the maltodextrin group"
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