The Flu Vaccine Is Little Effect On Men

The Flu Vaccine Is Little Effect On Men.


The flu vaccine is less telling for men than women, and researchers at Stanford University take it they've figured out why. The manful hormone testosterone causes genes in the immune combination to produce fewer antibodies, or defense mechanisms, in response to the vaccine, they found edhelp.top. "Men, typically, do worse than women in inoculated response to infection and vaccination," said Stanford research confidant 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 react as robustly as women's to vaccinations against flu, yellow fever, measles, hepatitis and many other diseases vimax male enhancement in south africa. 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 answer to the flu vaccine across the board. Testosterone is tied to ideal virile procreative characteristics, such as muscle strength, beard growth and risk-taking. "We found a set of genes in men that when activated caused a short response to the vaccine, but were not involved in female response. Some of these genes are regulated by testosterone".



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



So "We don't identify why". One expert doesn't think testosterone alone explains the dissimilitude in vaccine response between men and women. "There is more involved, but testosterone does affect the insusceptible response," said Dr Alan Mensch, medical director at North Shore-LIJ Plainview Hospital in Plainview, NY Mensch doesn't into it's necessary to increase vaccine doses for men. Rather, he thinks women can get by with a quieten dose.



And "There isn't a distinction in the amount of protection from flu. Women just don't need as much vaccine". In this study, which tangled 53 women and 34 men, researchers found that, in general, women had a stronger antibody retort to the vaccine. This was consistent with findings from other studies, the authors noted. However, men with low-born testosterone levels had an antibody response similar to women.



Furman's team also noticed that the movement of certain genes in men, but not women, was associated with a weakened antibody response to the flu vaccine. When they looked at masculine testosterone levels in relation to gene activity, they saw increased activation of the Module 52 genes in men with great in extent testosterone levels. This resulted in reduced antibody work for the flu, the researchers concluded.



But in women, activation levels of Module 52 genes had no significant drift on flu antibody levels, the study authors noted. Some Module 52 genes are known to be agnate to the immune system. The connections between these genes and testosterone might be a end for further study and drug development.



One unanswered question is what evolutionary purpose is served by having testosterone connected to the invulnerable system. It's possible that an overly robust unsusceptible response might be more dangerous than the disease itself. For example, women with their robust immune responses are twice as qualified as men to die from infections that invade the blood system online. So perchance a somewhat less robust immune system can be lifesaving for men, he suggested.

tag : vaccine testosterone women response genes levels antibody study system

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