Category Archives: Testosterone Information

Reading Time: < 1 minuteWashington, July 27 (ANI): A sudden decrease of testosterone, the male sex hormone, may cause Parkinson's like symptoms in male mice, a new study has found. One of the major roadblocks for discovering drugs against Parkinson's disease is the unavailability of a reliable animal model for this disease. "While scientists use different toxins and a number of complex genetic approaches to model Parkinson's disease in mice, we have found that the sudden drop in the levels of testosterone following castration is sufficient to cause persistent Parkinson's like pathology and symptoms in male mice," Dr. Kalipada Pahan, lead author of the … Read more »

Reading Time: < 1 minuteBoxing News Dr. Margaret Goodman and the Voluntary AntiDoping Association (VADA) have called for professional sports leagues to immediately adopt the Carbon Isotope Ratio (CIR) test for every screen used in testing for performanceenhancing drugs. To date, only fighters who participate in VADAs rigorous voluntary program undergo such testing. The recent positive tests for synthetic, or artificial, testosterone in professional and elite sports demonstrate that it is a problem at the highest levels of sport, said Dr. Goodman, President of VADA. Clearly, some athletes are choosing to use the substance because they know it is not tested for upfront. Its … Read more »

Reading Time: 2 minutesA new study on female hormones and sexual desire finds that estrogen, not testosterone, can boost libido in a woman's natural cycle, while progesterone deadens it, they say. Not coincidentally, this increase in desire works in favor of a woman's fertility. "We found two hormonal signals that had opposite effects on sexual motivation," said lead author James Roney of the University of California Santa Barbara. "Estrogen was having a positive effect, but with a two-day lag. Progesterone was having a persistent negative effect, both for current day, day before, and two days earlier." Roney and his team recruited undergraduate students … Read more »

Reading Time: < 1 minuteby KING 5 HealthLink KING5.com Posted on August 16, 2013 at 9:51 AM Dr. Emily Cooper of Seattle Performance Medicine joined KING 5 to explain how testosterone is not just important as a sex hormone -- and it's not just a "guy thing," either. She answered questions and talked about why testosterone matters. What are the most important things to know about testosterone? Levels of testosterone change throughout life. They begin to increase in puberty-- especially late puberty -- and peak in the 20s and they do decline naturally with age. When everything's working properly, levels are about eight to … Read more »

Reading Time: 2 minutesPublic release date: 23-Jun-2012 [ | E-mail | Share ] Contact: Aaron Lohr alohr@endo-society.org 240-482-1380 The Endocrine Society A new study finds that a drop in testosterone levels over time is more likely to result from a man's behavioral and health changes than by aging. The study results will be presented Monday at The Endocrine Society's 94th Annual Meeting in Houston. "Declining testosterone levels are not an inevitable part of the aging process, as many people think," said study co-author Gary Wittert, MD, professor of medicine at the University of Adelaide in Adelaide, Australia. "Testosterone changes are largely explained by … Read more »

Reading Time: < 1 minuteAndroGel, Axiron and other testosterone gels can light a fire. (UPI Photo/Brian Kersey) License photo YONKERS, N.Y., May 20 (UPI) -- Investigators at Consumer Reports say the directions for testosterone gel say the gel is flammable until dry and avoid smoking or an open flame until dry. Consumer Reports said testosterone drugs such as Androgel 1.62 percent and Axiron, which increase a man's libido, are already associated with an increased risk of heart attacks, strokes and other cardiovascular events in men. TV commercials already warn children accidentally exposed to testosterone can experience early puberty, and women who accidentally touch the … Read more »

Reading Time: 2 minutesUsing a testosterone gel in addition to Viagra doesn't make the little blue pill work any better, according to a new study. The report's lead researcher said testosterone is typically prescribed to men who have both low testosterone levels and symptoms such as little interest in sex or low bone and muscle mass. But, "there's a tremendous amount of clinical judgment" that goes into that, said Dr. Matthew Spitzer, from the Boston University School of Medicine. "People are certainly being prescribed and using these medications at increasing amounts." According to Spitzer, studies have suggested that about one-quarter to one-third of … Read more »

Reading Time: 2 minutesWWF superstar Macho Man Randy Savage attended an in store promo in New York City. (UPI/Ezio Petersen) License photo STANFORD, Calif., April 30 (UPI) -- Men higher in testosterone are more easily threatened and as a result they overcompensate when their masculinity is threatened, U.S. researchers say. Robb Willer, an associate professor of sociology at Stanford University, and colleagues enlisted 54 undergraduate men at the University of Iowa who took a gender identity survey about their assertiveness or other qualities typically associated with masculinity or femininity. They were then given feedback the men believed was based on the survey but … Read more »

Reading Time: 3 minutesAug. 13, 2013 The everyday physical activities of an isolated group of forager-farmers in central Bolivia are providing valuable information about how industrialization and its associated modern amenities may impact health and wellness. Studying short-term spikes in the testosterone levels of Tsimane men, UC Santa Barbara anthropologists Ben Trumble and Michael Gurven have found that the act of chopping down trees -- a physically demanding task that is critical to successful farming and food production -- results in greater increases in testosterone than does a directly competitive activity such as soccer. Their research appears in the early online edition of … Read more »

Reading Time: 2 minutesPublic release date: 17-Jun-2013 [ | E-mail | Share ] Contact: Jenni Glenn Gingery jgingery@endocrine.org 301-941-0240 The Endocrine Society SAN FRANCISCO- Testosterone therapy is associated with decreased pain perception in men with low testosterone levels related to opioid (narcotic) pain relievers (analgesics), a new study finds. The results were presented Monday at The Endocrine Society's 95th Annual Meeting in San Francisco. "In this study, we attempted to determine whether testosterone replacement improves pain perception and tolerance, and quality of life in men with low testosterone levels due to narcotic analgesics," said the study's lead author Shehzad Basaria, MD, Medical Director, … Read more »

Reading Time: 2 minutesNEW YORK (AP) -- Shares of BioSante Pharmaceuticals Inc. surged Thursday after regulators approved a testosterone gel that will be marketed by its partner Teva Pharmaceutical Industries Ltd. THE SPARK: The Food and Drug Administration approved Bio-T-Gel as a treatment for low testosterone levels, or male hypogonadism. Bio-T-Gel is intended to be applied to the skin once per day. Low testosterone is associated with fatigue, depression and various sexual dysfunctions. Teva shares also traded higher after the company's fourth-quarter results came in about equal to Wall Street expectations. THE BIG PICTURE: BioSante, of Lincolnshire, Ill., developed Bio-T-Gel and licensed it … Read more »

Reading Time: 2 minutesTORONTO, ONTARIO--(Marketwired - Jul 9, 2013) - Trimel Pharmaceuticals Corporation (TRL.TO) today announced that the New Drug Application ("NDA") for its bioadhesive intranasal gel testosterone product ("CompleoTRT") has been formally accepted for review by the United States Food and Drug Administration (the "FDA"). The NDA is supported by efficacy and safety results from 306 patients who participated in the pivotal Phase III study. Additionally, the FDA has confirmed that under the United States Prescription Drug User Fee Act, the NDA will be subject to a standard review and the target action date for the NDA is February 28, 2014. About … Read more »

Reading Time: 2 minutesPublic release date: 9-May-2012 [ | E-mail | Share ] Contact: William Raillant-Clark w.raillant-clark@umontreal.ca 514-343-7593 University of Montreal This press release is available in French. MONTREAL, MAY 10, 2012 By comparing the testosterone levels of five-month old pairs of twins, both identical and non-identical, University of Montreal researchers were able to establish that testosterone levels in infancy are not inherited genetically but rather determined by environmental factors. "Testosterone is a key hormone for the development of male reproductive organs, and it is also associated with behavioural traits, such as sexual behaviour and aggression," said lead author Dr. Richard E. Tremblay … Read more »

Reading Time: 2 minutesScienceDaily (Mar. 27, 2012) It's a rough life for the Tsimane, an isolated indigenous group in Bolivia. They make a living by hunting and foraging in forests, fishing in streams and clearing land by hand to grow crops. Their rugged lifestyle might imply that Tsimane men have elevated testosterone to maintain the physical activity required to survive each day. But new research shows that Tsimane ("chi-MAH-nay") men have a third less baseline testosterone compared with men living in the United States, where life is less physically demanding. And unlike men in the U.S., the Bolivian foragers-farmers do not show declines … Read more »

Reading Time: 2 minutesLow testosterone is increasingly recognised as a complex condition linked to many bodily functions and overall health. LOW testosterone causes symptoms that can adversely affect a mans quality of life and disrupt his daily routines. Men with low testosterone also have a strong likelihood of developing the various conditions of metabolic syndrome, which increases the risk of heart disease and diabetes. Previously, we have emphasised the message that testosterone deficiency is not to be taken lightly or to be brushed off as a side effect of aging. This message is also underscored in a new book by consultant urologist Datuk … Read more »

Reading Time: 3 minutesHeres a strange one: A study on testosterone published Oct. 10 in the online journal PLOS ONE concludes that testosterone administration can increase honesty in men. The article on the study, entitled Testosterone Administration Reduces Lying In Men, was authored by Dr. Matthias Wibral and associates from University of Bonn in Germany. Testosterone, the most abundant male sex hormone, is associated with sex drive, skin health, lean muscle mass and aggression. Higher testosterone levels are associated with interpersonal and social dominance, status-seeking, physical dynamism and in extreme cases, greater violence. In the German study, the various researchers designed a simple … Read more »

Reading Time: < 1 minuteBy Victoria Hansen vhansen@abcnews4.com CHARLESTON, S.C. (WCIV) -- Chances are you've seen the commercials. "Do you have low energy?" "Has your belly gotten bigger?" "What about your sex life? Has it all but disappeared?" Men, you probably remember these words more vividly. The advertisements promise relief. They say you may have low testosterone, the hormone that puts hair on your chest and stokes your sex drive. They say there is a cure for what ails you. Of course, the symptoms are often the common maladies of middle age. "Many men focus on the benefits of increasing testosterone levels related to … Read more »

Reading Time: 2 minutesLow testosterone, or hypogonadism, is a legitimate health problem. Men who have it can suffer a variety of conditions, from low energy and sex drive to depression, weight gain and even bone loss. But chances are, you dont have this problem, and neither do many of the men you know. The best evidence is that only about 2 percent of the U.S. male population ages 40 to 79 are below the minimum T threshold. That hasnt prevented a wave of interest in testosterone-replacement therapy. At the top of the hierarchy, there are the prescription-only gels and injections that replace the … Read more »

Reading Time: 2 minutesJune 17, 2013 Postmenopausal women had better improvement in verbal learning and memory after receiving treatment with testosterone gel, compared with women who received sham treatment with a placebo, a new study found. Results were presented Monday at The Endocrine Society's 95th Annual Meeting in San Francisco. "This is the first large, placebo-controlled study of the effects of testosterone on mental skills in postmenopausal women who are not on estrogen therapy," said principal investigator Susan Davis, MBBS (MD), PhD, of Monash University, Melbourne, Australia. "Our study has confirmed our similar findings from two smaller studies in postmenopausal women and suggests … Read more »

Reading Time: < 1 minuteSTANFORD, Calif., Dec. 26 (UPI) -- U.S. researchers suggest male testosterone levels may partially explain why men often have weaker responses to vaccines than women. Mark M. Davis of the Stanford University School of Medicine and an investigator with the Howard Hughes Medical Institute and colleagues identified a link between certain genes affected by testosterone and antibody responses to an influenza vaccine. Previous research showed men typically experience more severe viral and other microbial infections than women, who tend to mount stronger immune responses to infections and vaccinations. In this study, Davis and colleagues analyzed the antibody responses of 53 … Read more »