Scientists successfully test male contraceptive on monkeys
Posted on:08 Feb 2017 18:03:09
Free Current Affairs to Your Email
08 February 2017 Current Affairs: Scientists from California National Primate Research Centre, US have successfully tested a new male contraceptive ‘Vasalgel’ that blocks sperm flow on monkeys. Now it is waiting for human trials. During the animal trials, the Vasalgel contraceptive provided effective birth control in rhesus monkey groups for more than one year. It brings the prospect of an alternative form of birth control for humans.
The trial use of Vasalgel in groups of rhesus macaques has confirmed the previous preclinical trail findings in rabbits on the efficacy of the new contraceptive. Vasalgel is a high molecular weight polymer containing styrene-alt-maleic acid (SMA) dissolved in dimethyl sulfoxide. The polymer forms a hydrogel after injection into the sperm-carrying tube vas deferens, creating a blockage to the passage of sperm rather than cutting it as in vasectomy, to filter sperms from the fluid ejaculation. The contraceptive effect of Vasalgel can also be reversed by flushing the material out with a simple sodium bicarbonate solution.
The purpose Vasalgel is to prevent pregnancy, not just by eliminating sperm in larger animals more anatomically. In over a last century, male contraceptive options have not changed and currently are limited to vasectomy (meant to be permanent) and condoms and withdrawal (with high pregnancy rates). Vasagel could be the first long-acting, non-hormonal, potentially reversible male contraceptive to reach market.
FreshersLive - No.1 Job site in India. Here you can find latest 2017 government as well as private job recruitment notifications for different posts vacancies in India. Get top company jobs for both fresher and experienced. Job Seekers can get useful interview tips, resume services & interview Question and answer. Practice online test free which is helpful for interview preparation. Register with us to get latest employment news/rojgar samachar notifications. Also get latest free govt and other sarkari naukri job alerts daily through E-mail.