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Contraception at Biology News

Hormonal male contraception reversible after few months for all men

With hormonal male contraception likely to be available in the near future, results of a study in this week's issue of THE LANCET highlight how such contraception is reversible within a few months. Currently available male contraceptive methods (condoms, withdrawal, and vasectomy) are not acceptable to many couples because they are either not sufficiently reliable or not easily reversible....

Emergency contraception fails to halt abortions

Easy availability of emergency contraception does not have a notable effect on rates of pregnancy and abortion, according to an editorial in this week's BMJ. The usefulness of emergency contraception is questioned by Professor Anna Glasier, director of family planning and well woman services of Lothian Primary Care NHS Trust, Edinburgh, who says it does help some women some of the time, w...

Male contraception: One door opens, another closes

We have often heard that a new male contraceptive is "five to ten years" away. But are we getting any closer? The answer may finally be "yes." This week marked the announcement of one hot new lead and one dead end. Researchers in Italy and at the Population Council in New York have announced a breakthrough on a non-hormonal compound known as Adjudin (Nature...
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Common contraception

A unique protein that only occurs in sperm could be the key to a new contraceptive for both men and women.The protein, named CatSper, is an ion channel protein that controls the flow of calcium into sperm tails. Calcium is crucial in enabling sperm to swim, so a drug designed to block the channel would immobilise sperm and prevent fertilisation. The discovery is reported in this week's...

Men happy to take contraception

According to researchers, Australian men's attitudes to hormonal contraception has found that an overwhelming majority would be prepared to shoulder the responsibility. The researchers, from the Department of Obstetrics and Gynaecology at the Monash Medical Centre, asked the male partners //of women who had recently given birth what contraceptives they used and how they felt about a male contrace...

Limiting sperm motility for contraception

An ion channel protein that plays a central role in sperm motility could be an enticing target for a new type of contraceptive that could be taken by either men or women to block the process of fertilization. The newly discovered protein, called CatSper, controls the flow of calcium into the tails of spermatozoa. This influx of calicum triggers the sperm’s motor proteins, causing the tail to beat...

New ! Male Contraception

With the exception of condoms and vasectomy, contraception is typically left up to the woman. Pills, patches, and shots are among the many choices in a woman's contraceptive repertoire. Until now, men have had little to choose from, so researchers have been searching for new options. Now, they may have one.// Condoms have a user-failure rate of up to 12 percent. Vasectomies are considere...

Chlamydia Screening To Be Offered With Emergency Contraception

In an effort to identify and treat a potentially huge unknown population at risk of untreated Chlamydia, women requesting emergency contraception will be offered fast-tracked // screening for the disease. Chlamydia, a sexually transmitted disease (STD) caused by a tiny bacterium, Chlamydia trachomatis, can lead to infertility, and is very common among young adults and teenagers. Howev...

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Oral contraception

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Emergency contraception

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Contraception

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