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Recent Longevity News for the seven days ending 7/14/10.  You should consult your doctor if you are taking any medications.

Medications found to cause long term cognitive impairment of aging brain, study finds - Science Daily,7/13/10 - "They are sold over the counter under various brand names such as Benadryl®, Dramamine®, Excedrin PM®, Nytol®, Sominex®, Tylenol PM®, and Unisom®. Other anticholinergic drugs, such as Paxil®, Detrol®, Demerol® and Elavil® are available only by prescription ... taking one anticholinergic significantly increased an individual's risk of developing mild cognitive impairment and taking two of these drugs doubled this risk"

Anti-cancer effects of broccoli ingredient explained - Science Daily, 7/12/10 - "sulforaphane, a chemical found in broccoli, interacts with cells lacking a gene called PTEN to reduce the chances of prostate cancer developing" - See sulforaphane at Amazon.com.

Eating foods rich in vitamin E associated with lower dementia risk - Science Daily, 7/12/10 - "the one-third of individuals who consumed the most vitamin E (a median or midpoint of 18.5 milligrams per day) were 25 percent less likely to develop dementia than the one-third of participants who consumed the least (a median of 9 milligrams per day)" - See Jarrow FamilE (contains all eight members of the vitamin E family, includes Tocomin) at Amazon.com.

Moderate Physical Activity Linked to Lower Dementia Risk - Medscape, 7/12/10 - "Compared with those with lower levels of activity, participants reporting moderate to heavy physical activity had a 45% lower risk for dementia over time"

Regular Tea Consumption May Slow Cognitive Decline - Medscape, 7/12/10 - "Participants who drank tea 5 to 10 times per year, 1 to 3 times per month, 1 to 4 times per week, or 5 or more times per week had average annual rates of cognitive decline that were 17%, 32%, 37%, and 26% lower, respectively, than those of non-tea-drinkers" - See green tea extract at Amazon.com.

Low vitamin D levels associated with cognitive decline - Science Daily, 7/12/10 - "An estimated 40 percent to 100 percent of older adults in the United States and Europe are deficient in vitamin D ... Participants who were severely deficient in vitamin D (having blood levels of 25-hydroxyvitamin D of less than 25 nanomoles per liter) were 60 percent more likely to have substantial cognitive decline in general over the six-year period and 31 percent more likely to experience declines on the test measuring executive function than those with sufficient vitamin D levels" - See vitamin D at Amazon.com.

Vitamin D levels associated with Parkinson's disease risk - Science Daily, 7/12/10 - "Over a 29-year follow-up, through 2007, 50 of the participants developed Parkinson's disease. After adjusting for potentially related factors, including physical activity and body mass index, individuals in the highest quartile (one-fourth of the study population) of serum vitamin D levels had a 67 percent lower risk of developing Parkinson's disease than those in the lowest quartile of vitamin D levels" - See vitamin D at Amazon.com.

Sirtuin1 may boost memory and learning ability; Discovery could lead to new drugs to fight Alzheimer's, other neurological diseases - Science Daily, 7/11/10 - "Resveratrol, found in wine, has been touted as a life-span enhancer because it activates a group of enzymes known as sirtuins, which have gained fame in recent years for their ability to slow the aging process. Now MIT researchers report that Sirtuin1 -- a protein that in humans is encoded by the SIRT1 gene -- also promotes memory and brain flexibility ... We have now found that SIRT1 activity also promotes plasticity and memory" - See resveratrol products at Amazon.com.

Plant extract may be effective against inflammatory bowel disease - Science Daily, 7/7/10 - "PEITC is found in the Brassica genus of plants, which includes cabbage, cauliflower, watercress and broccoli ... it not only alleviates several clinical signs of ulcerative colitis -- for example, it attenuates the damage that occurs in the colon tissues and colon epithelium, as well as the clinical signs like diarrhea and blood in stool. The weight loss is a major sign in colitis and that was alleviated, too"

Short Telomeres Tied to Cancer Risk - Medscape, 7/9/10 - "short telomere length was associated with a 60% increased risk for subsequent cancer"

High-protein diets may cause bone loss in older women, study - Nutra USA, 7/8/10 - "Study 1 ... on average, all women lost around 19 pounds, but those who ate the higher-protein, meat-containing diet also lost bone mineral density by about 1.4 percent ... Study 2 ... All women lost weight, but the groups that consumed the higher-protein meat-containing diets again also lost bone mineral density by up to 1.4 percent compared to the control group ... In the first study, all the participants con­sumed calcium supplements to achieve calcium intakes of 2,000mg per day. In the second study, about half of the participants con­sumed calcium supplements ... However, in neither case were the supplements found to impact the loss of bone density"

Fish oil may reduce risk of breast cancer - Science Daily, 7/8/10 - "asked 35,016 postmenopausal women who did not have a history of breast cancer to complete a 24-page questionnaire about their use of non-vitamin, non-mineral "specialty" supplements in the Vitamins and Lifestyle (VITAL) cohort study ... Regular use of fish oil supplements, which contain high levels of the omega-3 fatty acids, EPA and DHA, was linked with a 32 percent reduced risk of breast cancer. The reduction in risk appeared to be restricted to invasive ductal breast cancer, the most common type of the disease" - See Mega Twin EPA at Amazon.com and Jarrow Max DHA at Amazon.com.

High blood levels of vitamin E reduces risk of Alzheimer's, Swedish study finds - Science Daily, 7/7/10 - "High levels of several vitamin E components in the blood are associated with a decreased risk for Alzheimer's disease (AD) in advanced age, suggesting that vitamin E may help prevent cognitive deterioration in elderly people. This is the conclusion reached in a Swedish study ... Vitamin E is a family of eight natural components, but most studies related to Alzheimer's disease investigate only one of these components, +/--tocopherol ... We hypothesized that all the vitamin E family members could be important in protecting against AD ... subjects with higher blood levels of all the vitamin E family forms had a reduced risk of developing AD, compared to subjects with lower levels. After adjusting for various confounders, the risk was reduced by 45-54%, depending on the vitamin E component" - See Jarrow FamilE (contains all eight members of the vitamin E family, includes Tocomin) at Amazon.com

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):

Independent and joint effects of serum 25-hydroxyvitamin D and calcium on ovarian cancer risk: A prospective nested case-control study - Eur J Cancer. 2010 Jun 18 - "We observed a significant inverse association between calcium and ovarian cancer risk. Relative risk (estimated as odds ratio, OR) comparing the highest quartile to the lowest quartile was significantly decreased; 0.41 [95% confidence interval (CI) 0.19-0.85, P-trend 0.004]. Even though a comparable association between 25-OHD and ovarian cancer did not reach statistical significance (OR 0.57, 95% CI 0.26-1.24, P-trend 0.07), having sufficient (>75nmol/L) serum 25-OHD levels compared to insufficient serum 25-OHD was associated with a significantly decreased risk of ovarian cancer (OR 0.32; 95% CI 0.12-0.91, p-value 0.03)"

Gamma-tocotrienol as an effective agent in targeting prostate cancer stem cell-like population - Int J Cancer. 2010 Jul 8 - "Emerging evidence supports that prostate cancer originates from a rare sub-population of cells, namely prostate cancer stem cells (CSCs). Conventional therapies for prostate cancer are believed to mainly target the majority of differentiated tumor cells but spare CSCs, which may account for the subsequent disease relapse after treatment. Therefore, successful elimination of CSCs may be an effective strategy to achieve complete remission from this disease. Gamma-tocotrienols (gamma-T3) is one of the vitamin-E constituents which have been shown to have anticancer effects against a wide-range of human cancers. Recently, we have reported that gamma-T3 treatment not only inhibits prostate cancer cell invasion but also sensitizes the cells to docetaxel-induced apoptosis, suggesting that gamma-T3 may be an effective therapeutic agent against advanced stage prostate cancer. Here, we demonstrate for the first time that gamma-T3 can down-regulate the expression of prostate CSC markers (CD133/CD44) in androgen independent (AI) prostate cancer cell lines (PC-3 & DU145), as evident from western blotting analysis. Meanwhile, the spheroid formation ability of the prostate cancer cells was significantly hampered by gamma-T3 treatment. In addition, pre-treatment of PC-3 cells with gamma-T3 was found to suppress tumor initiation ability of the cells. More importantly, while CD133-enriched PC-3 cells were highly resistant to docetaxel treatment, these cells were as sensitive to gamma-T3 treatment as the CD133-depleted population. Our data suggest that gamma-T3 may be an effective agent in targeting prostate CSCs, which may account for its anticancer and chemosensitizing effects reported in previous studies" - See Jarrow FamilE (contains all eight members of the vitamin E family, includes Tocomin) at Amazon.com.

Low Serum Levels of Dehydroepiandrosterone Sulfate Predict All-Cause and Cardiovascular Mortality in Elderly Swedish Men - J Clin Endocrinol Metab. 2010 Jul 7 - "During a mean 4.5-yr follow-up, 328 deaths occurred. Low levels of DHEA-S (quartile 1 vs. quartiles 2-4), predicted death from all causes [hazard ratio (HR) 1.54, 95% confidence interval (CI) 1.21-1.96; adjusted for traditional cardiovascular risk factors], from CVD (n = 123 deaths; HR 1.61, 95% CI 1.10-2.37) and ischemic heart disease (n = 73; HR 1.67, 95% CI 1.02-2.74) but not cancer. Analyses with DHEA gave similar results. The association between low DHEA-S and CVD death remained after adjustment for C-reactive protein and circulating estradiol and testosterone levels. When stratified by the median age of 75.4 yr, the mortality prediction by low DHEA-S was more pronounced among younger (age adjusted HR for CVD death 2.64, 95% CI 1.37-5.09) than older men (HR 1.30, 95% CI 0.83-2.04). Conclusions: Low serum levels of DHEA(-S) predict death from all causes, CVD, and ischemic heart disease in older men" - See DHEA at Amazon.com.

Aged garlic extract lowers blood pressure in patients with treated but uncontrolled hypertension: A randomised controlled trial - Maturitas. 2010 Jun 29 - "In patients with uncontrolled hypertension (SBP>/=140mmHg at baseline), systolic blood pressure was on average 10.2+/-4.3mmHg (p=0.03) lower in the garlic group compared with controls over the 12-week treatment period. Changes in blood pressure between the groups were not significant in patients with SBP<140mmHg at baseline. Aged garlic extract was generally well tolerated and acceptability of trial treatment was high (92%). CONCLUSION: Our trial suggests that aged garlic extract is superior to placebo in lowering systolic blood pressure similarly to current first line medications in patients with treated but uncontrolled hypertension" - See garlic supplements at Amazon.com.

Telomere length and risk of incident cancer and cancer mortality - JAMA. 2010 Jul 7;304(1):69-75 - "Short telomere length at baseline was associated with incident cancer independently of standard cancer risk factors (multivariable hazard ratio [HR] per 1-SD decrease in log(e)-transformed telomere length, 1.60; 95% confidence interval [CI], 1.30-1.98; P < .001). Compared with participants in the longest telomere length group, the multivariable HR for incident cancer was 2.15 (95% CI, 1.12-4.14) in the middle length group and 3.11 (95% CI, 1.65-5.84) in the shortest length group (P < .001). Incidence rates were 5.1 (95% CI, 2.9-8.7) per 1000 person-years in the longest telomere length group, 14.2 (95% CI, 10.0-20.1) per 1000 person-years in the middle length group, and 22.5 (95% CI, 16.9-29.9) per 1000 person-years in the shortest length group. The association equally applied to men and women and emerged as robust under a variety of circumstances. Furthermore, short telomere length was associated with cancer mortality (multivariable HR per 1-SD decrease in log(e)-transformed telomere length, 2.13; 95% CI, 1.58-2.86; P < .001) and individual cancer subtypes with a high fatality rate. CONCLUSION: In this study population, there was a statistically significant inverse relationship between telomere length and both cancer incidence and mortality"

Vitamin D levels and mortality in type 2 diabetes - Diabetes Care. 2010 Jul 6 - "All-cause mortality was increased in patients with severe vitamin D deficiency; HR [95% CI] 1.96 [1.29-2.98] ... Severe vitamin D deficiency was associated with increased cardiovascular mortality; HR 1.95 [1.11-3.44]" - See vitamin D at Amazon.com.

Health Focus (Hearing Loss):

Alternative News:

  • Consumption of omega-3 fatty acids and fish and risk of age-related hearing loss - Am J Clin Nutr. 2010 Jun 9 - "There was an inverse association between total n-3 PUFA intake and prevalent hearing loss [odds ratio (OR) per SD increase in energy-adjusted n-3 PUFAs: 0.89; 95% CI: 0.81, 0.99]. There was an inverse association between long-chain n-3 PUFAs and incident hearing loss (OR per SD increase in long-chain n-3 PUFAs: 0.76; 95% CI: 0.60, 0.97). Participants who had >/=2 servings of fish/wk compared with participants who had <1 serving of fish/wk had a significantly reduced risk (42%) of developing presbycusis at follow-up (multivariate-adjusted OR: 0.58; 95% CI: 0.35, 0.95). There was an association between consumption of >/=1 to <2 servings/wk of fish and a reduced risk of a progression of hearing loss (OR: 0.53; 95% CI: 0.32, 0.88). CONCLUSIONS: There was an inverse association between higher intakes of long-chain n-3 PUFAs and regular weekly consumption of fish and hearing loss. Dietary intervention with n-3 PUFAs could prevent or delay the development of age-related hearing loss" - [Nutra USA] - See Mega Twin EPA at Amazon.com and Jarrow Max DHA at Amazon.com.
  • Folate may prevent hearing loss in men - Nutra USA, 10/7/09 - "men over the age of 60 with high folate intake from foods and supplements had a 20 per cent decrease in risk of developing hearing loss" - See folic acid products at Amazon.com.
  • Can A Dietary Supplement Stave Off Hearing Loss? - Science Daily, 2/12/09 - "temporary noise-induced hearing loss – the hearing loss you might feel immediately after attending a loud concert but that goes away in a day or two – can be prevented in guinea pigs by a combination of the antioxidants beta-carotene, vitamin C, and vitamin E and the mineral magnesium, when administered before exposure to a loud sound ... In a second study conducted with colleagues at Washington University, the researchers demonstrated that permanent noise-induced hearing loss can also be prevented in mice through the combination of the same nutrients administered before exposure to a loud noise"
  • Can Vitamins And Minerals Prevent Hearing Loss? - Science Daily, 11/10/08 - "The combination of vitamins A, C and E, plus magnesium, is given in pill form to patients who are participating in the research. Developed at the U-M Kresge Hearing Research Institute, the medication, called AuraQuell, is designed to be taken before a person is exposed to loud noises. In earlier testing at U-M on guinea pigs, the combination of the four micronutrients blocked about 80 percent of the noise-induced hearing impairment"
  • Vitamin E and vitamin C in the treatment of idiopathic sudden sensorineural hearing loss - Acta Otolaryngol. 2007 Aug 22;:1-6 - "The hearing gain after therapy was 29.4 dB and the improvement rate was 63.3% in the study group, compared with 18.5 dB and 44.0% in the control group. Significant improvement was seen in the hearing gain and recovery rate in the study group"
  • Nutrients Against Noise? - Dr. Weil, 5/1/07
  • Nutrient Combo May Curb Hearing Loss - WebMD, 3/30/07 - "The guinea pigs that got the combination treatment of magnesium and vitamins A, C, and E had the least amount of noise-induced hearing loss and ear damage"
  • Folic Acid May Slow Hearing Loss - WebMD, 1/2/07 - "Half the study participants got strong folic acid supplements -- 800 micrograms per day, about twice what one would get in a multivitamin pill ... After three years, those who got folic acid pills had less low-frequency hearing loss than did placebo recipients"
  • Can You Stop Hearing Loss? - Dr. Weil, 11/26/04
  • Vitamin E Helps People with Sudden Hearing Loss - Healthwell Exchange Daily News, 10/2/03 - "one group received vitamin E, 600 IU two times per day, while the other did not. Treatment was considered successful when hearing improved by 75% or more ... At follow-up examinations, successful treatment was noted in 76% of those receiving vitamin E and 56% of those not receiving vitamin E"
  • Cod Liver Oil Fights Ear Infections - WebMD, 7/15/02
  • Low High-density Lipoprotein Cholesterol Levels Linked To Hearing Loss In Men - Doctor's Guide, 10/23/00 - "The two groups showed no difference in hearing when stratified based on total cholesterol and total triglyceride levels. However, when men were stratified based on their HDL cholesterol concentration, hearing levels at 2000 Hz and 4000 Hz in the high-level group were significantly better than those with low concentrations of this lipid ... The authors suggest that low serum concentration of HDL cholesterol is associated with hearing loss."
  • Local Steroids May Be Effective In Treating Sudden Hearing Loss - Doctor's Guide, 9/30/99
  • Antioxidant-Enhancing Drug Partly Reduces Noise-Induced Hearing Loss - Doctor's Guide, 9/12/97 - "the researchers showed the stress of loud noises causes an increase in free radicals in the inner ear, which can damage or kill sensory cells. To defend themselves, sensory cells express a rush of glutathione, an antioxidant that absorbs free radicals. R-PIA was found to increase the activity of glutathione, thus providing enhanced protection from free-radical damage."

Other News:

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