The Flu Vaccine Is Little Effect On Men

The Flu Vaccine Is Little Effect On Men.
The flu vaccine is less impressive for men than women, and researchers at Stanford University suppose they've figured out why. The manly hormone testosterone causes genes in the immune arrangement to produce fewer antibodies, or defense mechanisms, in response to the vaccine, they found. "Men, typically, do worse than women in vaccinated response to infection and vaccination," said Stanford research affiliate David Furman, the lead study investigator.

For instance, men are more susceptible to bacterial, viral, fungal and parasitic infection than women. And men's safe systems don't come back as robustly as women's to vaccinations against flu, yellow fever, measles, hepatitis and many other diseases. For the study, published online Dec 23, 2013 in the Proceedings of the National Academy of Sciences, the researchers analyzed the blood of nearly 90 adults after they received a seasonal flu shot.

Men with the highest testosterone levels had the worst effect to the flu vaccine across the board. Testosterone is tied to immortal man's sensual characteristics, such as muscle strength, beard growth and risk-taking. "We found a set of genes in men that when activated caused a jinxed response to the vaccine, but were not involved in female response. Some of these genes are regulated by testosterone".

It's testosterone's accomplish on these genes that causes the poor vaccine response. "This has a lot of implications for vaccine development". Vaccine comeback might be better if men were given twice the dose, he suggested, or peradventure if testosterone levels were reduced. The whole picture isn't in effect clear or simple. Men's weaker response to the flu vaccine is only seen for some strains of flu.

Some Elderly Men Really Suffer From Andropause, But Much Less Frequently Than Previously Thought

Some Elderly Men Really Suffer From Andropause, But Much Less Frequently Than Previously Thought.
In describing a set of reliable symptoms for "male menopause" for the foremost time, British researchers have also ascertained that only about 2 percent of men age-old 40 to 80 suffer from the condition, far less than previously thought. Male menopause, also called "andropause" or late-onset hypogonadism, allegedly results from declines in testosterone production that occur later in life, but there has been some think on how real the phenomenon is, the study authors noted. "Some aging men undeniably suffer from male menopause.

It is a genuine syndrome, but much less common than previously assumed," concluded Dr Ilpo Huhtaniemi, chief author of a study published online June 16 in the New England Journal of Medicine. "This is outstanding because it demonstrates that genuine symptomatic androgen deficiencies androgens are virile hormones is less common than believed, and that only the right patients should get androgen treatment," added Huhtaniemi, a professor of reproductive endocrinology in the control of surgery and cancer at Imperial College London.

Many men have been taking testosterone supplements to grapple the perceived effects of aging, even though it's not acquit if taking these supplements help or if they're even safe. The result has been mass confusion, not only as to whether male menopause exists but also how to boon it. "A lot of people abuse testosterone who shouldn't and a lot of men who should get it aren't," said Dr Michael Hermans, an confederate professor of surgery in the Texas A&M Health Science Center College of Medicine and boss of the section of andrology, male sexual dysfunction and man's infertility at Scott & White in Temple, Texas.

Human Growth Hormone (HGH) Enhances Athletic Performance Like Testosterone

Human Growth Hormone (HGH) Enhances Athletic Performance Like Testosterone.
Human lump hormone, a property c oftentimes implicated in sports doping scandals, does seem to shove athletic performance, a new study shows. Australian researchers gave 96 non-professional athletes old 18 to 40 injections of either HGH or a saline placebo. Participants included 63 men and 33 women homepage here. About half of the masculine participants also received a alternative injection of testosterone or placebo.

After eight weeks, men and women given HGH injections sprinted faster on a bicycle and had reduced pot-bellied piles and more sparse body mass. Adding in testosterone boosted those belongings - in men also given testosterone, the affect on sprinting ability was nearly doubled. HGH, however, had no create on jumping ability, aerobic capacity or strength, measured by the facility to dead-lift a weight, nor did HGH increase muscle mass.

So "This ms adds to the scientific evidence that HGH can be show enhancing, and from our perspective at World Anti-Doping Agency (WADA), lends vouch for to bans on HGH," said Olivier Rabin, WADA's method director. The study, which was funded in neighbourhood by WADA, is in the May 4 issue of the Annals of Internal Medicine. Human extension hormone is among the substances banned by the WADA for use by competitive athletes.

HGH is also banned by Major League Baseball, though the fraternity doesn't currently evaluate for it. HGH has made headlines in the sports world. Recently, American tennis punter Wayne Odesnik accepted a unbidden suspension for importing the significance into Australia, while Tiger Woods denied using it after the assistant to a honoured sports medicine expert who had treated Woods was arrested at the US-Canada touch with HGH.

However, based on anecdotal reports and athlete testimonies, HGH is by many abused in professional sports, said Mark Frankel, top dog of the scientific freedom, responsibility and command program for the American Association for the Advancement of Science. Prior scrutinize has suggested HGH reduces fat mass, Rabin said, as well as better the body recover more quickly from injury or "microtraumas" - bantam injuries to the muscles, bones or joints that manifest itself as a result of intense training. That type of a boost could put athletes at a competitive advantage, Rabin said.