Category Archives: Testosterone Information

Reading Time: 3 minutesAndrogen, also called androgenic hormone or testoid, is the generic term for any natural or synthetic compound, usually a steroid hormone, that stimulates or controls the development and maintenance of male characteristics in vertebrates by binding to androgen receptors.[1] This includes the activity of the accessory male sex organs and development of male secondary sex characteristics. Androgens were first discovered in 1936. Androgens are also the original anabolic steroids and the precursor of all estrogens. The primary and most well-known androgen is testosterone. Dihydrotestosterone (DHT) and androstenedione are less known generally, but are of equal importance in male development. DHT … Read more »

Reading Time: 2 minutesPellet therapy has been around since the 1930sthe concept is probably about the same age as Premarin, but much like other bioidentical hormones, a lack of approval from the FDA has left the public fearful of the consequences of use. In 2008, the FDA gave its blessing to Slate Pharmaceuticals Testopel, bioidentical testosterone pellet therapy designed exclusively for men. As many have discovered the ease and effectiveness of this delivery method for testosterone, it has become increasingly popular for men and women. Testosterone delivered by pellet implant, has been used to treat migraines and menstrual headaches. It may also be … Read more »

Reading Time: 1 minuteWashington, May 15 (ANI): A new University of Missouri study has found that testosterone levels during group competition are modulated depending on the relationships among the competitors and may be related to the formation of alliances in warfare. "One interesting thing about humans is that we are the only animal that competes in teams," said Mark Flinn, professor of anthropology at MU. "Our hormonal reactions while competing are part of how we evolved as a cooperative species. What we found in our study is that although male's testosterone levels increase when men are victorious against strangers or rivals, levels of … Read more »

Reading Time: 2 minutesWASHINGTON (AP) -- Federal health experts issued a split opinion Thursday on whether a long-acting testosterone injection from Endo Health Solutions is safe. A Food and Drug Administration panel voted 9-9 on the safety of Endo's Aveed, a drug designed to be injected once every 10 weeks to boost testosterone in men with abnormally low levels. The FDA is not required to follow the group's advice, though it often does. Endo has asked the FDA to approve its drug as a long-term treatment for hypogonadism, or low testosterone caused by disease or damage to the reproductive or hormonal organs. The … Read more »

Reading Time: 2 minutesPUBLIC RELEASE DATE: 29-Jan-2014 Contact: Eileen Petridis epetridis@fallscommunications.com 216-696-0229 The North American Menopause Society (NAMS) CLEVELAND, Ohio (January 29, 2014)With plummeting hormone levels, natural menopause before age 40 can put a damper on women's mental well being and quality of life. But bringing testosterone back up to normal may not bring them the boost some hoped for, found a new study published online today in Menopause, the journal of The North American Menopause Society (NAMS). Before age 40, ovaries stop functioning in about 1% of women without some obvious genetic abnormality to blame, bringing on an early menopause. Called "primary … Read more »

Reading Time: 3 minutesPublic release date: 31-Jan-2012 [ | E-mail | Share ] Contact: Craig Brierley c.brierley@wellcome.ac.uk 44-207-611-7329 Wellcome Trust Testosterone makes us overvalue our own opinions at the expense of cooperation, research from the Wellcome Trust Centre for Neuroimaging at UCL (University College London) has found. The findings may have implications for how group decisions are affected by dominant individuals. Problem solving in groups can provide benefits over individual decisions as we are able to share our information and expertise. However, there is a tension between cooperation and self-oriented behaviour: whilst groups may benefit from a collective intelligence, collaborating too closely can … Read more »

Reading Time: 2 minutesPublic release date: 27-Mar-2012 [ | E-mail | Share ] Contact: Molly McElroy mollywmc@uw.edu 206-543-2580 University of Washington 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 … Read more »

Reading Time: < 1 minuteDepo-Testosterone Description Depo-Testosterone Injection, for intramuscular injection, contains testosterone cypionate which is the oil-soluble 17 (beta)- cyclopentylpropionate ester of the androgenic hormone testosterone. Testosterone cypionate is a white or creamy white crystalline powder, odorless or nearly so and stable in air. It is insoluble in water, freely soluble in alcohol, chloroform, dioxane, ether, and soluble in vegetable oils. The chemical name for testosterone cypionate is androst-4-en-3-one,17-(3-cyclopentyl-1-oxopropoxy)-, (17)-. Its molecular formula is C27H40O3, and the molecular weight 412.61. Slideshow: 2013 Drug News Round-Up: Top 20 Stories The structural formula is represented below: Depo-Testosterone Injection is available in two strengths, 100 mg/mL … Read more »

Reading Time: 1 minuteWEDNESDAY, April 3 (HealthDay News) -- Men with low levels of the hormone testosterone may be at greater risk for rheumatoid arthritis, according to a new study. Both men and women with rheumatoid arthritis have lower levels of testosterone in their blood than people without the disease. But it has not been known whether low testosterone levels are a cause or effect of rheumatoid arthritis. Rheumatoid arthritis causes pain, swelling, stiffness and loss of joint function. Severe cases can last a lifetime. In this study, Swedish researchers analyzed blood samples collected from 104 men who were later diagnosed with rheumatoid … Read more »

Reading Time: 2 minutesA middle-age man goes to see his doctor, complaining of a host of vague symptoms: He's lethargic, somewhat depressed and feeling a little anxious about his manliness. Could he just need a boost of testosterone, the vital sex hormone produced by the testicles? These days, watching commercials from drug companies might lead you to believe that testosterone replacement could be just what you need, but researchers say it's unclear whether the issues associated with aging -- decreased sex drive, less energy, reduced muscle mass -- are the result of low testosterone or other factors. Often equated with youth, vigor and … Read more »

Reading Time: 3 minutesTestosterone is one of the most important, but commonly misrepresented hormones found in the body. Most of the information provided to the public comes from exposes on professional athletes. Who can forget Marion Jones relinquishing her medals from the 2000 Olympics after admitting to using performance-enhancing steroids? This unfortunate trend has overshadowed the beneficial side of these hormones. Testosterone is a messenger for the body. Like most hormones, it is involved in several different body processes both directly and indirectly. Testosterone levels naturally begin a slow decline around age 30, but several factors can alter this rate. Obesity, for instance, … Read more »

Reading Time: 2 minutesAnyone still laboring under the mistaken assumption that genes are the most important factor in determining destiny should take a look at research that is being reported in this weeks Science about a particular strain of mice that have a genetic predisposition to develop type 1 diabetes. It turns out that a key element in whether or not they actually succumb to the condition has to do with the type of bacteria that live in their intestines. The results reveal a complex interplay between gut bacteria (part of the animals microbiome), genes and, surprisingly, sex hormones. Type 1 diabetes is … Read more »

Reading Time: < 1 minutePublished: Jan. 31, 2013 at 7:05 PM LONDON, Jan. 31 (UPI) -- Red wine may give athletes a boost by increasing the amount of performance-enhancing hormone testosterone in their bodies, British researchers say. Study leader Declan Naughton of London's Kingston University and colleagues found red wine might reduce the amount of testosterone excreted by the body, which could distort the findings of urine drug tests. Testosterone is a naturally occurring steroid hormone present in both men and women that can increase muscle mass, boost stamina and speed recovery, but athletes are prohibited from taking it, or a synthetic version of … Read more »

Reading Time: 2 minutesMany men on testosterone dont need it Study Hall presents recent studies as described by researchers and their institutions. This report is from the Endocrine Society . Testosterone use has sharply increased among older men in the past decade, many patients appear to have normal testosterone levels and do not meet the clinical guidelines for treatment, according to new research. Testosterone is a key male sex hormone involved in maintaining sex drive, sperm production and bone health. Since testosterone levels tend to naturally decline as men age, lower levels of the hormone do not necessarily mean that an individual has … Read more »

Reading Time: < 1 minuteBy Amy Norton HealthDay Reporter WEDNESDAY, Sept. 11 (HealthDay News) -- Symptoms of so-called "andropause" -- the male equivalent of menopause -- may be triggered not only by declines in testosterone, but in the "female" hormone estrogen as well, a new study suggests. Experts said the study, published in the Sept. 12 issue of the New England Journal of Medicine, deepens researchers' understanding of the hormonal shifts that occur as men age. And it's more complicated than those ads about "low T" and testosterone supplements might lead men to believe. Instead, researchers found, there is no black-and-white cutoff for "low" … Read more »

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Reading Time: < 1 minuteBy Brooke Donald Men with higher levels of testosterone are more easily threatened, engaging in masculine overcompensation in response, says a Stanford sociologist. We've all heard it before: if a guy is made to feel less than manly, he'll act even more macho to make up for it. Now, new research suggests that this behavior may have something to do with how much testosterone a man has. Robb Willer, an associate professor of sociology at Stanford, has been studying masculinity since he was a graduate student, lending empirical data to the popular beliefs about emasculation. In one of his first … Read more »

Reading Time: < 1 minuteA WORLD-FIRST study to test whether testosterone injections could help prevent type 2 diabetes in men will get underway in Australia this year. Up to 1500 men across four Australian states will enrol in the Weight Watchers program and be given regular injections of either testosterone or a placebo. The lead investigator, Professor Gary Wittert from the University of Adelaide says men aged 50 to 74 who are at risk of developing diabetes are currently being sought for the two-year study. He said it was the first time such a study had been conducted anywhere in the world. "Nobody has … Read more »

Reading Time: 2 minutes"That is a substantial percentage, and it is across the population," Baillargeon said. About 50 percent of the men receiving testosterone therapy during that time period had hypogonadism, a condition where a man is unable to produce normal levels of testosterone - defined as 300 to 1,000 nanograms per deciliter of blood. But the study also found that 25 percent of the newest testosterone users were being treated without having their blood level checked. "I don't know what exactly is happening in the clinic visit, but to prescribe this treatment without accessing a baseline testosterone level, and to see that … Read more »

Reading Time: 2 minutesWashington, November 30(ANI): A new study has linked verbal aggression to prenatal testosterone exposure. Allison Z. Shaw, University at Buffalo - The State University of New York, Michael R. Kotowski, University of Tennessee, and Franklin J. Boster and Timothy R. Levine, Michigan State University, predicted that a neuroendocrine factor, prenatal testosterone, would lead to more verbal aggression. In order to investigate this, Shaw and colleagues used the 2D:4D measure, which is the ratio of the length of the second digit (index finger) to the length of the fourth digit (ring finger), to measure prenatal testosterone exposure. This study is the … Read more »