男用避孕药可能马上问世
文章来源:未知 文章作者:enread 发布时间:2012-09-06 07:04 字体: [ ]  进入论坛
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Attention men: The day may be coming soon when you can take your own birth control pill with no side effects, according to a study done by a group of scientists that includes a Texas A&M University researcher. Qinglei Li, an assistant professor in Texas A&M's College of Veterinary Medicine & Biomedical Sciences, is part of a team of researchers led by Martin Matzuk at Baylor College of Medicine and James Bradner at Dana-Farber Cancer Institute who made the discovery, and their work is published in the journal Cell.
 
Working on mice, the team found that a compound called JQ1 acts as an inhibitor to sperm1 production and also sperm mobility2.
 
"Both of these are needed for fertility, but JQ1 prevents both," Li says of the findings.
 
"It stopped the sperm production very dramatically. More good news is that there appear to be no side effects whatsoever3(无论什么). Once the JQ1 was no longer given to the mice, they were back to their normal reproduction rates, and it did not affect mating behavior or the health of the offspring."
 
Though the mice were given injections, the team believes that a pill could eventually be developed for the same results.
 
A male contraceptive pill(避孕药) has been talked about for decades, but so far none has been successfully created despite a strong demand.
 
While many men might be reluctant to take out the trash or ask for directions if they are lost, recent studies have shown that about 70 percent of men would be willing to take a birth control pill if it were available.
 
One drawback to many female contraceptives is that they sometimes interfere4 with hormones5, especially estrogen. But Li says the team is confident that JQ1 does not affect testosterone(睾丸素) levels in men, and appears to have no other side effects as well.
 
As with many discoveries, the JQ1 compound appears to have come about by accident.
 
It was originally used for anti-cancer treatments, but researchers found it was also an excellent compound in controlling fertility.
 
"This is an exciting step in male contraception," Li adds.
 
"A compound with more specificity will be needed before clinical trials can be done for humans. It does not mean a male birth control just yet, but it is a great step forward in that direction."


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1 sperm jFOzO     
n.精子,精液
参考例句:
  • Only one sperm fertilises an egg.只有一个精子使卵子受精。
  • In human reproduction,one female egg is usually fertilized by one sperm.在人体生殖过程中,一个精子使一个卵子受精。
2 mobility H6rzu     
n.可动性,变动性,情感不定
参考例句:
  • The difference in regional house prices acts as an obstacle to mobility of labour.不同地区房价的差异阻碍了劳动力的流动。
  • Mobility is very important in guerrilla warfare.机动性在游击战中至关重要。
3 whatsoever Beqz8i     
adv.(用于否定句中以加强语气)任何;pron.无论什么
参考例句:
  • There's no reason whatsoever to turn down this suggestion.没有任何理由拒绝这个建议。
  • All things whatsoever ye would that men should do to you,do ye even so to them.你想别人对你怎样,你就怎样对人。
4 interfere b5lx0     
v.(in)干涉,干预;(with)妨碍,打扰
参考例句:
  • If we interfere, it may do more harm than good.如果我们干预的话,可能弊多利少。
  • When others interfere in the affair,it always makes troubles. 别人一卷入这一事件,棘手的事情就来了。
5 hormones hormones     
n. 荷尔蒙,激素 名词hormone的复数形式
参考例句:
  • This hormone interacts closely with other hormones in the body. 这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
  • The adrenals produce a large per cent of a man's sex hormones. 肾上腺分泌人体的大部分性激素。
TAG标签: sperm reproduction bieth
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