Testosterone Raises Insulin Sensitivity

Giving testosterone to men with type 2 diabetes who are deficient in the hormone improved their insulin sensitivity, report researchers from the University of Buffalo in New York. Paresh Dandona and colleagues conducted a randomized, controlled trial of 81 men with type 2 diabetes. The subjects were randomized to receive treatment with testosterone or a placebo for six months. At baseline, those with hypogonadism, or low testosterone, had a higher body mass index and a greater fat mass than those who didn’t have it. The team found that hypogonadal men with type 2 diabetes had significantly lower insulin sensitivity; further, that association remained even when controlling for weight and age. As well, free testosterone rose dramatically, while placebo subjects had no significant changes in that parameter. Commenting that there was a “dramatic 25 percent increase in insulin sensitivity…after these men took testosterone for six months,” the authors note that total lean body mass increased significantly for testosterone patients while their fat mass significantly diminished.

Dhindsa, S.S., et al. (2013). Testosterone replacement decreases insulin resistance in hypogonadal men with type 2 diabetes. [Abstract OR22-1.] Presented at ENDO 2013 (the annual meeting of The Endocrine Society), June 19

 

Joint-Health Supplements May Guard Against Colorectal Cancer

Commonly taken as dietary supplements to support joint health, glucosamine and chondroitin each exert anti-inflammatory effects. E. D. Kantor and colleagues, from the Fred Hutchinson Cancer Research Center in Washington State, examined data collected on 75,137 subjects, aged 50 to 76 years, who were enrolled in the VITamins And Lifestyle—VITAL—study. The researchers found that subjects who took glucosamine and chondroitin for four or more days a week were 45 percent less likely to develop colorectal cancer than those who did not take the supplements. The authors submit that “glucosamine and chondroitin may merit further attention as a potential chemopreventive agent.”

Kantor, E.D., et al. (2013). Use of glucosamine and chondroitin supplements and risk of colorectal cancer. Cancer Causes & Control. 24:6, 1137-1146.

—Dr. Bob Goldman
www.WorldHealth.net

 

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Dr. Robert M. Goldman MD, PhD, DO, FAASP has spearheaded the development of numerous international medical organizations and corporations. Dr. Goldman has served as a Senior Fellow at the Lincoln Filene Center, Tufts University; as an Affiliate at the Philosophy of Education Research Center, Graduate School of Education, Harvard University, He is Clinical Consultant, Department of Obstetrics and Gynecology, Korea Medical University; and Professor, Department of Internal Medicine at the University of Central America Health Sciences, Department of Internal Medicine. Dr. Goldman holds the positions of Visiting Professor, Udayana University School of Medicine, Indonesia; Visiting Professor, Huazhong University of Science & Technology Tong Ji Medical School, China; Visiting Professor, The Wuhan Institute of Science & Technology, China; Visiting Professor at Hainan Medical College, China; and Visiting Professor, School of Anti-Aging, Aesthetics and Regenerative Medicine, UCSI University, Malaysia. Dr. Goldman is a Fellow of the American Academy of Sports Physicians and a Board Diplomat in Sports Medicine and Board Certified in Anti-Aging Medicine. Dr. Goldman is a Fellow of the American Academy of Sports Physicians and a Board Diplomat in Sports Medicine and Board Certified in Anti-Aging Medicine. He has overseen cooperative research agreement development programs in conjunction with such prominent institutions as the American National Red Cross, the US National Aeronautics and Space Administration (NASA), the Department of Defense, and the FDA’s Center for Devices & Radiological Health.

Dr Goldman was awarded the 2012 LifeTime Achievement Award in Medicine &Science. Dr. Goldman is the recipient of the ‘Gold Medal for Science, the Grand Prize for Medicine, the Humanitarian Award, and the Business Development Award. He received honors from Minister of Sports and government Health officials of numerous nations. In 2001, Excellency Juan Antonio Samaranch awarded Dr. Goldman the International Olympic Committee Tribute Diploma for contributions to the development of sport & Olympism.

In addition, Dr. Goldman is a black belt in karate, Chinese weapons expert, and world champion athlete with over 20 world strength records, he has been listed in the Guinness Book of World Records. Some of his past performance records include 13,500 consecutive situps and 321 consecutive handstand pushups. Dr. Goldman was an All-College athlete in four sports, a three time winner of the John F. Kennedy (JFK) Physical Fitness Award, was voted Athlete of the Year, was the recipient of the Champions Award, and was inducted into the World Hall of Fame of Physical Fitness. Dr. Goldman was awarded the Healthy American Fitness Leader Award from the President’s Council on Physical Fitness & Sports and U.S. Chamber of Commerce. Dr. Goldman is Chairman of the International Medical Commission overseeing sports medicine committees in over 184 nations. He has served as a Special Advisor to the President’s Council on Physical Fitness & Sports. He is founder and international President Emeritis of the National Academy of Sports Medicine and the cofounder and Chairman of the American Academy of Anti-Aging Medicine (A4M). Dr. Goldman visits an average of 20 countries annually to promote brain research and sports medicine programs.