November 12-18, 2010
By Dr Robert Goldman
Longevity News and Review provides readers with the latest information in breakthroughs pertaining to the extension of the healthy human lifespan. These news summaries are compiled by the American Academy of Anti-Aging Medicine (A4M; www.worldhealth.net), a non-profit medical society composed of 22,000 physician and scientist members from 105 nations, united in a mission to advance biomedical technologies to detect, prevent and treat aging related disease and to promote research into methods to retard and optimise the human aging process. Dr Robert Goldman, M.D., Ph.D., D.O., FAASP, A4M Chairman, and Dr Ronald Klatz, M.D., D.O., A4M President, physician co-founders of the anti-aging medical movement, distil these headlines and provide their commentary.
Green Tea May Protect DNA
Green tea, which contains 30 to 40 percent polyphenols, a potent type of antioxidant, has been shown by numerous previous studies to counteract oxidative stress at the cellular level. Iris Benzie, from The Hong Kong Polytechnic University, and colleagues engaged 18 healthy men and women, randomly assigning each to receive two cups of 1 percent green tea or water every day for four weeks, with a six-week washout period separating each four-week intervention. Analyzing blood and urine samples, the team found a 20-percent reduction in DNA damage resultant from drinking green tea daily for a one-month duration. The researchers conclude that: “The results indicate that green tea has significant genoprotective effects and provide evidence for green tea as a ‘functional food.’”
Dr Klatz observes: Finding that green tea may protect against damage at the genetic level, these researchers further the data suggesting a key functional health role for this beverage.
Triathletes Reveal Health Secrets
Triathlons are multi-sport events consisting of swimming, cycling and running various distances in succession, and represent a blend of endurance and resistance training. A study of triathletes completed by University of Erlangen-Nurenburg scientists reveals that the heart adapts to triathlon training by working more efficiently. Michael M. Lell and colleagues conducted cardiac magnetic resonance imaging (MRI) on 26 professional male triathletes, mean age 27.9 years, engaged in six or more years of continuous training; as well as 27 age-matched male counterparts who were recreationally active no more than three hours per week (served as controls). The cardiac MRI revealed that, compared to the recreational athletes, the triathletes had larger left atria and larger right and left ventricles. The triathletes’ left and right ventricles also had greater muscle mass and wall thickness. Explaining that these physiological adaptations reflect the nature of triathlon training, which has both endurance and resistance components, the researchers submit that a combined program of resistance and endurance training may be the optimal fitness regimen that benefits cardiovascular fitness.
Remarks Dr Goldman: Triathlete training results in key physiological adaptations of the heart, potentially raising the organ’s efficiency, reaffirming the merits of a fitness regimen that incorporates both resistance and endurance training.
Cranberry Juice May Offer Protection
Staphylococcus aureus (S. aureus) is responsible for a variety of infections, ranging from minor skin rashes to serious infections like toxic shock syndrome and Methicillin-resistant Staphylococcus aureus (MRSA), with deaths in the US from the latter doubling in just a six-year period. Escherichia coli (E. coli) is estimated to cause 80 percent of urinary-tract infections, and some previous studies have suggested a beneficial effect of oral consumption of cranberry juice on the condition. Terri Camesano, from Worcester Polytechnic Institute, and colleagues tested a cranberry-juice cocktail against a placebo (a liquid that mimicked the appearance and taste of cranberry juice), collecting urine samples and incubating them in the laboratory with strains of E. coli or S. aureus. The team found that those subjects who had recently consumed cranberry-juice cocktail significantly reduced the ability of both E. coli and S. aureus to form biofilms, thin surfaces upon which bacteria can multiply and thrive.
Comments Dr Klatz: In revealing that cranberry-juice cocktail blocked a strain of Staphylococcus aureus (S. aureus) from initialising infection, this research team offers evidence suggesting an important immune-protective role for this juice.
Anti-aging medicine is the fastest-growing medical specialty throughout the world and is founded on the application of advanced scientific and medical technologies for the early detection, prevention, treatment and reversal of age-related dysfunction, disorders and diseases. It is a healthcare model promoting innovative science and research to prolong the healthy lifespan in humans. As such, anti-aging medicine is based on solid scientific principles of responsible medical care that are consistent with those applied in other preventive health specialties. The goal of anti-aging medicine is not to merely prolong the total years of an individual’s life, but to ensure that those years are enjoyed in a productive and vital fashion.
Visit the A4M’s World Health Network website, at www.worldhealth.net, to learn more about the A4M and its educational endeavours and to sign up for your free subscription to the Longevity Magazine™ e-Journal.