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Recent Longevity News for the seven days ending
1/13/10. You should consult your doctor if you are taking any medications.
Dementia
linked to high blood pressure years earlier - Science Daily, 1/12/10 -
"Women who, at the start of the study, were
hypertensive, meaning a blood pressure of
140/90 or higher, had significantly more white
matter lesions on their MRI scans eight years later than participants with
normal blood pressure. Lesions were more common in the frontal lobe, the brain's
emotional control center and home to personality, than in the occipital,
parietal or temporal lobes"
Toxic goo
tracked from parking lots into homes - MSNBC, 1/11/10 -
"Chemicals in a cancer-causing substance used to seal
pavement, parking lots and driveways across the U.S. are showing up at alarming
levels in dust in homes, prompting concerns about the potential health effects
of long-term exposure" - Note: Another good reason to be a no shoes
house.
How one
form of natural vitamin E protects brain after stroke - Science Daily,
1/11/10 - "Our research suggests that the different
forms of natural vitamin E have distinct
functions. The relatively poorly studied tocotrienol form of natural vitamin E
targets specific pathways to protect against neural cell death and rescues the
brain after stroke injury ... Vitamin E occurs
naturally in eight different forms. The best-known form of vitamin E belongs to
a variety called tocopherols. The form of vitamin E in this study, tocotrienol
or TCT, is not abundant in the American diet but is available as a nutritional
supplement. It is a common component of a typical Southeast Asian diet" -
See
Jarrow FamilE (contains all eight members of the vitamin E family, includes
Tocomin) at Amazon.com.
Mango
effective in preventing, stopping certain colon, breast cancer cells, food
scientists find - Science Daily, 1/11/10 - "It has
about four to five times less antioxidant capacity than an average wine grape,
and it still holds up fairly well in anticancer activity. If you look at it from
the physiological and nutritional standpoint, taking everything together, it
would be a high-ranking super food"
Metformin is safe for patients with advanced heart failure and diabetes
mellitus, study shows - Science Daily, 1/7/10 - "The
study results suggest that, in patients with both advanced heart failure and
diabetes, use of metformin is safe, and may be
associated with better heart failure survival"
Airport
full-body scanners expose passengers to less harmful radiation than most
flights, experts say - Science Daily, 1/7/10 - "An
airline passenger flying cross-country is exposed to more radiation from the
flight than from screening by one of these devices"
Low Vitamin D Has a Role in Heart Risk - WebMD, 1/7/10 -
"Darker-skinned people produce less
vitamin D from the sun than those with lighter
skin, and studies show that blacks are far more likely to have lower levels of
the vitamin than whites ... Several recent studies also suggest that low levels
of vitamin D are associated with an increased risk for
heart attack and
stroke ... Compared to everyone else in the
study, the quarter with the lowest vitamin D levels had a 40% higher risk of
dying from heart attacks, strokes, and other heart-related events ... Blacks
were 38% more likely to die of cardiovascular causes than non-Hispanic whites,
and the researchers concluded that most of this excess was related to their
lower vitamin D levels" - See
vitamin D at Amazon.com.
Hypertension Linked to White-Matter Disease Progression: Study - Medscape,
1/7/10 - "Long-standing
hypertension is strongly associated with progression of
white-matter hyperintensity (WMH), which is
known to be associated with new or worsening
cognitive impairment and dementia"
Krill oil – hope or hype for the omega-3 market? - Nutra USA, 1/7/10 - It's
a four minute audio. - See
Krill Oil products at Amazon.com.
Dietary Fiber May Help Prevent Body Weight, Waist Circumference Gain -
Medscape, 1/6/10 - "There was an inverse association of
total fiber intake with subsequent change in
weight and in
waist circumference. For each 10-g/day
increase in total fiber intake, the pooled estimate was –39 g/year (95%
confidence interval [CI], –71 to –7 g/year) for weight change and –0.08 cm/year
(95% CI, –0.11 to –0.05 cm/year) for waist circumference change ... For each
10-g/day increase in fiber intake from cereals, there was a weight change of –77
g/year (95% CI, –127 to –26 g/year) and change in waist circumference of –0.10
cm/year (95% CI, –0.18 to –0.02 cm/year). Fruit and vegetable fiber was not
associated with weight change. However, the association of fruit and vegetable
fiber intake with change in waist circumference was similar to that seen for
intake of total dietary fiber and cereal fiber"
Review supports omega-3 for liver health - Nutra USA, 1/6/10 -
"A review of four human studies found that the
fatty acids could improve liver health and
function, and increase insulin sensitivity in people suffering from
fatty liver, a condition that is usually
symptomless but said to increase the risk for liver inflammation, and ultimately
results in liver failure" - See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
Caffeine
consumption associated with less severe liver fibrosis - Science Daily,
1/6/10 - "patients with chronic
hepatitis C virus (HCV) who consumed more than
308 mg of caffeine daily had milder liver
fibrosis. The daily amount of caffeine intake found to be beneficial is
equivalent to 2.25 cups of regular coffee. Other sources of caffeine beyond
coffee did not have the same therapeutic effect"
Celebrex May Slow, Prevent Skin Cancers - WebMD, 1/5/10 -
"There is mounting evidence that nonsteroidal
anti-inflammatory drugs (NSAIDs) may help prevent or slow the growth of non-
melanoma skin cancers ... the Cox-2 arthritis
drug Celebrex was found to reduce the growth of
basal cell skin cancers by 50% in some patients with a rare genetic condition
that makes them highly susceptible to the tumors"
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):
Low
testosterone levels and SHBG levels and high estradiol levels are independent
predictors of type 2 diabetes in men - Eur J Endocrinol. 2010 Jan 8 -
"There was a significantly lowered multi-adjusted risk
for later diabetes with higher normal total
testosterone levels, both linearly per SD
increase (HR 0.71, CI 0.54-0.92) and in the higher quartiles of total
testosterone compared to the lowest (HR 0.53, CI 0.33-0.84). A reduced
multi-adjusted risk for incident diabetes was also found for men with higher
SHBG levels, both linearly per SD increase (HR 0.55,
CI 0.39-0.79) and when comparing the third (HR 0.38, CI 0.18-0.81) and the
fourth quartile (HR 0.37, 0.17-0.82) to the lowest. The associations with total
testosterone and SHBG were no longer significant after inclusion of waist
circumference to the multivariate models. Estradiol was positively associated
with incident diabetes after multivariate adjustments including waist
circumference, when comparing the second (HR 0.49, CI 0.26-0.93) and the third
(HR 0.51, CI 0.27-0.96) quartile to the highest Conclusion. Men with higher
estradiol levels had an increased risk of later diabetes independent of obesity,
while men with lower total testosterone and SHBG had an increased risk of
diabetes that appeared dependent of obesity"
Effect of
age and race/ethnicity on HbA1c levels in people without known diabetes
mellitus: Implications for the diagnosis of diabetes - Diabetes Res Clin
Pract. 2010 Jan 8 - "Over 90% of all race/ethnicity
groups would have diabetes with HbA1c levels
>/=7.0% ... we recommend an HbA1c level of >/=7.0% to diagnose diabetes"
Flavonoid
intake and disability-adjusted life years due to Alzheimer's and related
dementias: a population-based study involving twenty-three developed countries
- Public Health Nutr. 2010 Jan 11:1-7 - "Flavonols
and combined flavonoids (all five combined) intakes were the only two parameters
with significant (P < 0.05) negative dementia correlations. Multiple linear
regression models confirmed this relationship, and excluded confounding from
some other dietary and non-dietary factors. Similar analyses with non-dementia,
neurological/psychiatric diseases did not yield significant correlations.
CONCLUSIONS: At a global level, and in the context of different genetic
backgrounds, our results suggest that higher consumption of dietary flavonoids,
especially flavonols, is associated with lower population rates of
dementia in these countries"
Review
article: omega-3 fatty acids - a promising novel therapy for non-alcoholic fatty
liver disease - Aliment Pharmacol Ther. 2009 Dec 30 -
"Non-alcoholic fatty
liver disease (NAFLD) affects 10-35% of the adult population worldwide;
there is no consensus on its treatment ...
Omega-3 fatty acids are important regulators of hepatic gene transcription.
Animal studies demonstrate they reduce hepatic steatosis, improve insulin
sensitivity and reduce markers of inflammation. Clinical trials in human
subjects generally confirm these findings but have significant design
inadequacies. Conclusions Omega-3 fatty acids are a promising treatment for
NAFLD which require to be tested in randomised placebo controlled trials"
- See
Mega Twin EPA at Amazon.com
and
Jarrow Max DHA at Amazon.com.
Association
of vitamin D deficiency with cognitive impairment in older women:
cross-sectional study - Neurology. 2010 Jan 5;74(1):27-32 -
"Cognitive impairment was
defined as a Pfeiffer Short Portable Mental State Questionnaire (SPMSQ) score <8
... Compared with women with serum 25(OH)D
concentrations > or =10 ng/mL (n = 623), the women with 25(OH)D deficiency (n =
129) had a lower mean SPMSQ score (p < 0.001) and more often had an SPMSQ score
<8 (p = 0.006). There was no significant linear association between serum
25(OH)D concentration and SPMSQ score (beta = -0.003, 95% confidence interval
-0.012 to 0.006, p = 0.512). However, serum 25(OH)D deficiency was associated
with cognitive impairment (crude odds ratio [OR] = 2.08 with p = 0.007; adjusted
OR = 1.99 with p = 0.017 for full model; and adjusted OR = 2.03 with p = 0.012
for stepwise backward model). CONCLUSIONS: 25-Hydroxyvitamin D deficiency was
associated with cognitive impairment in this cohort of community-dwelling older
women" - See
vitamin D at Amazon.com.
Association
of vitamin D status with serum androgen levels in men - Clin Endocrinol
(Oxf). 2009 Dec 29 - "Men with sufficient
25(OH)D levels (>/=30 mug/l) had significantly
higher levels of testosterone and FAI and
significantly lower levels of SHBG when compared to
25(OH)D insufficient (20-29.9 mug/l) and 25(OH)D deficient (<20 mug/l) men
(p<0.05 for all). In linear regression analyses adjusted for possible
confounders, we found significant associations of 25(OH)D levels with
testosterone, FAI, and SHBG levels (p<0.05 for all). 25(OH)D, testosterone, and
FAI levels followed a similar seasonal pattern with a nadir in March (12.2
mug/l, 15.9 nmol/l, and 40.8, respectively) and peak levels in August (23.4
mug/l, 18.7 nmol/l, and 49.7, respectively) (p<0.05 for all). Conclusion:
Androgen levels and 25(OH)D levels are associated in men and reveal a concordant
seasonal variation" - See
vitamin D at Amazon.com.
Elevated
serum dehydroepiandrosterone sulphate level correlates with increased risk for
metabolic syndrome in the elderly men - Eur J Clin Invest. 2009 Dec 30 -
"The highest DHEA-S
quartile group had increased risk for metabolic syndrome (odds ratio = 2.68, 95%
confidence interval: 1.44-5.01, P < 0.01) compared with the lowest quartile
group. The mean serum DHEA-S level increased with increasing number of metabolic
syndrome components. Conclusions The prevalence of metabolic syndrome increases
with elevated DHEA-S levels among elderly Taiwanese men. Thus, elevated serum
DHEA-S level should be treated as an important risk factor for metabolic
syndrome in elderly men"
Alpha-lipoic
acid improves vascular endothelial function in patients with type 2 diabetes: a
placebo-controlled randomized trial - Eur J Clin Invest. 2009 Dec 27 -
"600 mg alpha-lipoic acid
or placebo. Results FBF responses were comparable at baseline. After treatment,
FBF reactivity to ACh and GTN was unchanged in subjects receiving placebo. By
contrast, ALA treatment increased endothelium-dependent vasodilatation to ACh (P
< 0.05) but not to GTN compared with baseline. Conclusions Intravenous ALA
treatment improves endothelium-dependent vasodilatation in patients with type 2
diabetes, in the absence of effects on forearm
vasomotor function. If this salutary action translates into vascular risk
reduction remains to be established" - See
alpha lipoic acid at Amazon.com.
Oral health
and risk for head and neck squamous cell carcinoma: the Carolina Head and Neck
Cancer Study - Cancer Causes Control. 2010 Jan 5 - "squamous
cell carcinoma of head and neck (SCCHN) ... Routine dental visits were
associated with 30% risk reduction (OR: 0.68, 95% CI: 0.53, 0.87). CONCLUSIONS:
These data provide support for a possible modest association of
periodontal disease, as measured by self-reported
tooth loss indicators, but not tooth loss per se, with SCCHN risk" -
Interesting because I survived neck cancer with about a 1 in 10 chance of
survival (it will be 5 years next month,
click here). I've been getting my teeth cleaned every three months for
about twelve years.
Blueberry
Supplementation Improves Memory in Older Adults (dagger) - J Agric Food
Chem. 2010 Jan 4 - "Blueberries
contain polyphenolic compounds, most prominently anthocyanins, which have
antioxidant and anti-inflammatory effects. In addition, anthocyanins have been
associated with increased neuronal signaling in brain centers, mediating
memory function as well as improved glucose
disposal, benefits that would be expected to mitigate neurodegeneration ... At
12 weeks, improved paired associate learning (p = 0.009) and word list recall (p
= 0.04) were observed. In addition, there were trends suggesting reduced
depressive symptoms (p = 0.08) and lower glucose levels (p = 0.10). We also
compared the memory performances of the blueberry subjects with a
demographically matched sample who consumed a berry placebo beverage in a
companion trial of identical design and observed comparable results for paired
associate learning. The findings of this preliminary study suggest that
moderate-term blueberry supplementation can confer neurocognitive benefit and
establish a basis for more comprehensive human trials to study preventive
potential and neuronal mechanisms" - See
blueberry extract at Amazon.com.
Neat Tech Stuff :
Supplement Focus (Alpha
Lipoic Acid):
News & Research:
-
alpha lipoic acid at Amazon.com
- Lipoic Acid, The Unique
Antioxidant - Ray Sahelian, M.D.
- I have noticed
more and more articles on the benefits of lipoic acid. What is your opinion
of it? - Dr. Murray
-
Is there any advantage to taking a timed-release alpha-lipoic acid
supplement over an immediate release capsule? - Dr. Murray
-
Alpha-Lipoic
Acid - thenutritionreporter.com
-
Insulin Resistance - Dr. Weil - "Supplements:
... Coenzyme Q10 ... Alpha-lipoic acid ... Magnesium ... Chromium"
-
New
Approach Discovered To Lowering Triglycerides - Science Daily, 3/30/09 -
"In the lab animals, supplements of lipoic acid lowered
triglyceride levels up to 60 percent ... supplements of lipoic acid appeared to
affect triglyceride levels through two pathways. After eating, lipoic acid
supplementation increased the rate of disappearance of triglycerides in the
bloodstream. And supplements also reduced the genetic expression of enzymes in
the liver that synthesize triglycerides ... Lipoic acid supplements have in
various studies been shown to be an appetite suppressant ... The amount of
lipoic acid supplementation used in these laboratory experiments would equate to
about two grams per day for a 150-pound person"
-
Lipoic acid and carnitine combo show diabetes potential - Nutra USA, 2/18/08
- [Abstract] -
"the combination of LA and LCAR increased the mass,
oxygen consumption, mitochondrial DNA expression, and fatty acid oxidation in
the fat cells ... However, the treatments with LA or ALC alone at the same
concentrations showed little effect on mitochondrial function and biogenesis ...
Lipoic acid and acetyl-L-carnitine have become very hot after our reports on the
complementary effects on improving memory and ambulatory activity in old rats"
-
Lipoic
Acid Could Reduce Atherosclerosis, Weight Gain - Science Daily, 1/14/08 -
"lipoic acid supplements reduced atherosclerotic lesion
formation in two types of mice that are widely used to study cardiovascular
disease, by 55 percent and 40 percent, respectively. The supplements were also
associated with almost 40 percent less body weight gain, and lower levels of
triglycerides in very low-density lipoproteins" - See
alpha lipoic acid at Amazon.com.
-
Lipoic
Acid Explored As Anti-aging Compound - Science Daily, 5/17/07 -
"mice supplemented with lipoic acid have a cognitive
ability, behavior, and genetic expression of almost 100 detoxification and
antioxidant genes that are comparable to that of young animals"
-
Alpha-Lipoic Acid Supplements review - ConsumerLab.com, 5/16/07 -
"two alpha lipoic acid supplements contained
significantly less of this ingredient than promised on their labels"
-
Four
powerhouse nutrients - Functional Foods and Nutraceuticals, 4/05 -
"L-carnitine shuttles fuel into cells to be burned
as energy; coenzyme Q10 sparks the energy within the cells; ribose is a
component of adenosine triphosphate (ATP); and alpha-lipoic acid increases
ATP levels"
-
R-Dihydro-Lipoic Acid - The Optimal Form of Lipoic Acid - Life Extension
Magazine, 2/05
-
Testing of Alpha-Lipoic Acid Supplements By Consumerlab.com Finds Most Meet
Label Claims :: Natural and Nutritional Products Industry Center :: News
- NPI Center, 12/21/04 -
"one of 21 alpha-lipoic acid supplements recently
tested contained only 15% of the alpha-lipoic acid that it claimed ... There
is fairly good evidence that alpha-lipoic acid can be help people with
diabetes"
- The
Advantage of Single Daily Dosages of Herbal Medicines
- Dr. Murray's Natural Facts, 9/15/04 - "Based upon
the clinical research over the last 30 years and the pharmacokinetics of
immediate-release alpha-lipoic acid, it appears to be obviously superior to
the timed-release product"
-
Antioxidant [alpha]-Lipoic Acid Provides Relief for Diabetic Polyneuropathy
- Doctor's Guide, 6/20/03 - "After 3 weeks,
alpha-lipoic acid had a 24.1% improvement over placebo ... for TSS [Total
Symptom Score] and 16.0% for NIS [Neuropathy
Impairment Score]"
- Alpha-Lipoic Acid
Effective Against Burning Mouth Syndrome
- New Hope Natural Media, 5/15/03
-
Alpha Lipoic Acid Helping the Fight against Diabetes
- Physician's Weekly, 5/12/03 - "the
over-the-counter antioxidant supplement alpha lipoic acid has been effective
against the burning, numbness and pain that often is associated with
diabetic neuropathy. The
antioxidant works mainly as a pain medication and was clinically shown to
have few side effects"
- Antioxidant
Soothes Diabetic Neuropathy - WebMD, 4/11/03 - "Alpha
lipoic acid seems to actually change the metabolism of the nerve or
blood supply to the nerve ... It is a very strong antioxidant and it is
assumed that oxidation plays a role in the development of diabetes ... This
means the substance -- produced in very small amounts by the body and also
found in foods such as potatoes and red meat -- protects against damage by
cell-ravaging "free radicals." This oxidation process is implicated in
various diseases, including heart disease, cancer, and neurologic conditions
including Parkinson's and Alzheimer's ... alpha lipoic acid improves the
function of cell "transporters" that carry and distribute glucose. "This
helps insulin do its role,"" - See
iHerb
or
Vitacost
alpha lipoic acid products.
- Alpha-Lipoic Acid
Helpful in Diabetic Neuropathy - Medscape, 3/7/03 -
"Alpha-lipoic acid (ALA) rapidly and significantly reduces sensory symptoms
and pain of
diabetic neuropathy"
- 12 Ways to Feel
and Look Younger - WebMD, 10/25/02 - "In
addition to the effective antioxidant vitamin C, Morris says CoQ10, vitamin
E, alpha lipoic acid (another antioxidant), and perhaps some of those
"mental acuity" mixtures in the health-food store should be in your medicine
cabinet"
-
ALC and Alpha-Lipoic Acid - Dr. Janson's Newsletter, 7/02 -
"The recent studies in rats show that
ALC
(especially when combined with the antioxidant alpha-lipoic acid) can
protect the brain from the oxidative damage related to aging, and can
protect the mitochondrial membranes ... when older animals are supplemented
with ALC and lipoic acid they are more physically active, have better
short-term memory, and overall enhanced cognitive function. (They also have
better liver function because of the same protection of the mitochondria,
with increased mitochondrial metabolism and reduced oxidative damage.) ...
It appears that these nutrients also help the heart, especially when taken
together. While ALC helps restore cardiac carnitine levels, and improves
cardiac energy, the aging heart also becomes sensitive to oxidative stress.
For protection from such stress, you need to combine the ALC with
alpha-lipoic acid (LA) ... It is apparent that the accelerated aging that
results from lifestyle choices, stress, and oxidative exposures, can be
slowed or even reversed"
-
Do Anti-aging Supplements Really Work? - Life Extension Magazine, 6/02 -
"The National Academy of Sciences has published
three new reports showing that aging may be partially reversible with
currently available supplements"
-
Putting Antioxidants To Use In Functional Formulas - Functional Foods &
Nutraceuticals, 5/02 - "Clinical studies have found
that it can improve insulin function, helping to improve glucose tolerance
in people with diabetes.15,16 Some researchers have suggested that long-term
use of alpha-lipoic acid may help prevent adult-onset diabetes"
-
The Wizard is Oz - Life Extension Magazine, 11/01 -
"Best-selling author and nutritional guru to the
rich and famous, Oz Garcia is singing the praises of the Life Extension
Foundation and its products in his newest book,
The
Healthy High Tech Body, published in September 2001 ... Supplements at
the top of Garcia's list of recommendations ...
DHA ... NADH ... Alpah Lipoic Acid ...
Acetyl-L-Carnitine ... An expanded list of his recommendations includes
lycopene, gamma tocopherol,
vinpocetine,
SAMe, folic acid,
carnosine,
glutathione, DMAE, Huperzine A,
probiotics, MSM,
secretagogues,
arginine pyroglutamate,
IP-6, bioflavonoid formulas and
grape skin/seed extracts"
- The
Hard-Liver's Guide to the Liver - WebMD, 10/8/02
-
The Prediabetic Epidemic - Nutrition Science News, 3/01 -
"Supplements to Regulate Glucose and Insulin ...
Alpha-Lipoic Acid ... Only recently have researchers understood its
antioxidant actions quench free radicals responsible for many diabetic
complications. It also lowers glucose levels—by 10 to 30 percent—and
improves insulin function ...
Vitamin E ... Vitamin C ...
Chromium ...
Silymarin"
-
Sustain the Brain - Nutrition Science News, 2/01 -
"ALA may protect the body from oxidative damage by
enhancing detoxifying agents such as glutathione, which occurs in the brain
and serves as an antioxidant in these tissues ... Results of animal studies
demonstrate that ALA can reduce damage to neurons caused by toxic substances
that are by-products of inflammatory processes.12 Another animal study
showed memory improvement in aged rats given ALA ... Clinical trials
conducted in Germany have shown ALA to be valuable for treating diabetic
polyneuropathy, a disease involving the peripheral nerves. Supplementation
was shown to improve motor and sensory nerve conduction"
-
ALA Eases Diabetic Neuropathy Symptoms - Nutrition Science News, 11/00
- Some
Diabetics Buck Tradition and Turn to Herbs - WebMD, 10/9/00 -
"Researchers have submitted study results to the journal Diabetes Care for
another natural product -- alpha lipoic acid, known by the brand name
Glucotize. The product "lowers blood sugar levels, which is excellent," ...
"Because that's what causes a lot of diabetic complications.""
-
Lipoic Acid: The Universal Antioxidant - Nutrition Science News, 10/00
-
Staying Young Forever, Putting new research findings into practice -
Life Extension Foundation, 12/99 -
"lipoic acid is the only antioxidant that can boost
the level of intracellular glutathione, a cellular antioxidant of tremendous
importance. Besides being the body's primary water-soluble antioxidant and a
major detoxification agent, glutathione is absolutely essential for the
functioning of the immune system"
-
Alpha Lipoic Acid For Diabetes, Atherosclerosis And Aging - Life
Extension Magazine, 3/96
Abstracts:
-
Dietary
lipoic acid supplementation can mimic or block the effect of dietary restriction
on life span -Mech Ageing Dev. 2008 Apr 22;129(6):341-348 -
"Ad libitum feeding a diet supplemented with lipoic acid
can therefore act as mimetic of DR to extend survival"
-
Switching from pathogenetic treatment with alpha-lipoic acid to gabapentin and
other analgesics in painful diabetic neuropathy: a real-world study in
outpatients - J Diabetes Complications. 2008 Apr 8 -
"The daily costs for alpha-lipoic acid were considerably lower than those for
gabapentin or several frequently used drug combinations. The frequency of
outpatient visits was 3.8 times per 3 months during the treatment period with
alpha-lipoic acid, while it increased to 7.9 per 3 months after switching to
gabapentin or the other pain medications. In conclusion, switching from
long-term treatment with alpha-lipoic acid to central analgesic drugs such as
gabapentin in painful diabetic neuropathy was associated with considerably
higher rates of side effects, frequencies of outpatient visits, and daily costs
of treatment. The pathogenic treatment option represents for the practicing
diabetologist an effective, safe, and cost-effective treatment option for the
majority of patients with diabetic polyneuropathy" - See alpha lipoic acid at Amazon.com.
-
Lipoic acid supplementation and endothelial function - Br J Pharmacol.
2008 Mar 17 - "Endothelial dysfunction is caused by
all the recognized cardiovascular risk factors and has been implicated in
the complex processes leading to the initiation and progression of
atherosclerosis. Short-term treatment with lipoic acid is shown in the
current issue of the British Journal of Pharmacology to improve endothelial
function of aortic rings of old rats. The age-related decrease in
phosphorylation of nitric oxide synthase and Akt was improved by lipoic acid
supplementation. The improved phosphorylation status may have been due to
reduced activity of the phosphatase PPA2, associated with decreased levels
of endothelial ceramide induced by lipoic acid. Neutral sphingomyelinase
activity was also reduced by lipoic acid, which was due, at least in part,
to increased glutathione levels in endothelial cells"
-
Lipoic acid significantly restores, in rats, the age-related decline in
vasomotion - Br J Pharmacol. 2008 Feb 25 - "In
old animals, endothelium-dependent relaxation in aortic rings was decreased,
GSH levels and its redox state in aortic endothelia were over 30% lower and
nSMase activity and endothelial ceramide levels were three-fold increased,
relative to young (2-4 mo) rats. LA treatment of old animals improved
relaxation in aortic rings, reversed the changes in endothelial GSH, in
nSMase activities and in ceramide levels. Similar effects on GSH levels and
nSMase activity in old rats were also induced by treatment with GSH
monoethylester. Activation (by phosphorylation) of eNOS was decreased by
about 50% in old rats and this age-related decrease was partially reversed
by LA treatment" - See
alpha lipoic acid at Amazon.com.
-
Effect of Co-enzyme Q10 and Alpha-Lipoic Acid on Response of Rabbit Urinary
Bladder to Repetitive Stimulation and In Vitro Ischemia - Urology. 2008
Feb 15 - "CoQ10 showed no protective effect.
alpha-LA resulted in increased contractile responses of the control bladder
and showed a moderate protective effect for all forms of stimulation. The
combination, however, showed a significantly greater increase in the
contraction of the control bladder and a greater protective effect than
alpha-LA alone"
-
R-alpha-Lipoic acid and acetyl-L: -carnitine complementarily promote
mitochondrial biogenesis in murine 3T3-L1 adipocytes - Diabetologia.
2008 Jan;51(1):165-74 - "Treatments with the
combination of LA and ALC at concentrations of 0.1, 1 and 10 mumol/l for 24
h significantly increased mitochondrial mass, expression of mitochondrial
DNA, mitochondrial complexes, oxygen consumption and fatty acid oxidation in
3T3L1 adipocytes. These changes were accompanied by an increase in
expression of Pparg, Ppara and Cpt1a mRNA, as well as increased expression
of peroxisome proliferator-activated receptor (PPAR) gamma coactivator 1
alpha (Ppargc1a), mitochondrial transcription factor A (Tfam) and nuclear
respiratory factors 1 and 2 (Nrf1 and Nrf2). However, the treatments with LA
or ALC alone at the same concentrations showed little effect on
mitochondrial function and biogenesis" - See
alpha lipoic acid at Amazon.com
and
acetyl l-carnitine at Amazon.com.
-
The antioxidant alpha-lipoic acid improves endothelial dysfunction induced
by acute hyperglycaemia during OGTT in impaired glucose tolerance - Clin
Endocrinol (Oxf). 2007 Dec 7
-
Dietary lipoic acid-dependent changes in the activity and mRNA levels of
hepatic lipogenic enzymes in rats - Br J Nutr. 2007 Dec 7;:1-9 -
"Lipoic acid profoundly decreased serum and liver
concentrations of TAG, and also lowered serum concentrations of phospholipid
and NEFA, and the concentration of cholesterol in the liver. A hypoglycaemic
effect of this compound was also observed. Lipoic acid dose-dependently
decreased the activity and mRNA levels of fatty acid synthase, ATP-citrate
lyase, glucose 6-phosphate dehydrogenase, malic enzyme and pyruvate kinase
in the liver despite that reductions were considerably attenuated in the
NADPH-producing enzymes. This compound also dose-dependently lowered the
mRNA levels of spot 14, adiponutrin, stearoyl-CoA desaturase 1, and Delta5-
and Delta6-desaturases. In addition, lipoic acid dose-dependently lowered
serum concentrations of insulin and leptin, but increased those of
adiponectin. Lipoic acid appeared to reduce hepatic lipogenesis and hence
decreases serum and liver lipid levels. Alterations in serum concentrations
of insulin and (or) adiponectin may trigger this consequence" - See
alpha lipoic acid at Amazon.com.
-
The effect of alpha-lipoic acid on symptoms and skin blood flow in diabetic
neuropathy - Diabet Med. 2007 May 8 - "study
suggests that alpha-lipoic acid, a potent antioxidant, improves symptoms of
diabetic neuropathy"
-
Oral Treatment With {alpha}-Lipoic Acid Improves Symptomatic Diabetic
Polyneuropathy: The SYDNEY 2 trial - Diabetes Care. 2006
Nov;29(11):2365-2370 - "Oral treatment with ALA for
5 weeks improved neuropathic symptoms and deficits in patients with DSP. An
oral dose of 600 mg once daily appears to provide the optimum
risk-to-benefit ratio"
-
Treatment for diabetic mononeuropathy with alpha-lipoic acid - Int J
Clin Pract. 2005 Jun;59(6):645-50 - "alpha-lipoic
acid appears to be an effective drug in the treatment for not only
peripheral and autonomic diabetic neuropathy, but also diabetic
mononeuropathy of the cranial nerves leading to full recovery of the
patients" - See
iHerb
or
Vitacost
alpha lipoic acid products.
-
Memory loss in old rats is associated with brain mitochondrial decay and
RNA/DNA oxidation: Partial reversal by feeding acetyl-L-carnitine and/or
R-alpha -lipoic acid
- Proc Natl Acad Sci U S A 2002 Feb 19;99(4):2356-2361 -
"Electron microscopic studies in the hippocampus
showed that
ALCAR and/or LA reversed age-associated mitochondrial structural decay"
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