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Omega-3s May Protect Against Skin Cancer

Posted Mar 25 2013 10:21pm

Skin cancer is a major public health concern, and the majority of cases are caused by solar ultraviolet radiation exposure, which suppresses skin immunity. In that animal studies suggest that omega-3 fatty acids exert a protective effect against photoimmunosuppression and skin cancer, Lesley Rhodes, from The University of Manchester (United Kingdom), and colleagues enrolled 79 men and women, ages 22 to 60 years, to consume either a supplement containing 5 g of omega-3 fatty acids (70% eicosapentaenoic acid [EPA] and 10% docosahexaenoic acid [DHA]), or a control pill, daily for three months. The subjects were then exposed to the equivalent of 8, 15, or 30 minutes of summer midday sun using a light machine that emitted solar-simulated radiation. The team observed that immunosuppression was 50% lower in subjects who took the omega-3 supplement and were exposed to 8 or 15 minutes of simulated sunlight, as compared to people who did not take the supplement. The study authors conclude that: "Oral [omega-3 fatty acids] appear to abrogate photoimmunosuppression in human skin, providing additional support for their chemopreventive role.” 

Suzanne M Pilkington, Karen A Massey, Susan P Bennett, Naser MI Al-Aasswad, Khaled Roshdy, Lesley E Rhodes, et  al.  “Randomized controlled trial of oral omega-3 PUFA in solar-simulated radiation-induced suppression of human cutaneous immune responses.”  Am J Clin Nutr., March 2013 97: 646-652.

  
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Anti-Aging Forum MLDP Join A4M
Tip #138 - Unlock the Genetics of Longevity
Telomeres are the endcaps on chromosomes, and telomeric shortening is thought to govern the number of times a cell can divide. In white blood cells (leukocytes), telomere shortening is used as a marker of biological age. King’s College London (United Kingdom) researchers studied 2,401 twins, tracking their physical activity level, lifestyle habits, and examined the length of the telomeres in the subjects’ white blood cells (leukocytes).The team confirmed that telomere length decreased with age; men and women who were less physically active in their leisure time had shorter leukocyte telomeres than those who were more active. The mean difference in leukocyte telomere length between the most active subjects (who performed an average of 199 minutes of physical activity per week) versus the least active subjects (16 minutes of physical activity per week) was 200 nucleotides. This translated to mean that “the most active subjects had telomeres the same length as sedentary individuals up to 10 years younger, on average.”

Regular physical activity helps improve your overall health and fitness, and reduces your risk for many chronic diseases. Men and women ages 18 to 64 years need at least:

• 2 hours and 30 minutes (150 minutes) of moderate-intensity aerobic activity (i.e., brisk walking) every week; and muscle-strengthening activities on 2 or more days a week that work all major muscle groups (legs, hips, back, abdomen, chest, shoulders, and arms).

OR:
• 1 hour and 15 minutes (75 minutes) of vigorous-intensity aerobic activity (i.e., jogging or running) every week; and muscle-strengthening activities on 2 or more days a week that work all major muscle groups (legs, hips, back, abdomen, chest, shoulders, and arms).

OR:
• An equivalent mix of moderate- and vigorous-intensity aerobic activity and muscle-strengthening activities on 2 or more days a week that work all major muscle groups (legs, hips, back, abdomen, chest, shoulders, and arms).

Not only is it best to spread your activity out during the week, but you can break it up into smaller chunks of time during the day. As long as you're doing your activity at a moderate or vigorous effort for at least 10 minutes at a time. Consult an anti-aging physician to construct a regimen that is appropriate for your medical needs.
 
 
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