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Tag: "sperm" at medical news

Infertility Breakthrough With First Birth from Lab-matured Egg

...fertilised by a technique called intra-cytoplasmic sperm injection. Sixty-four embryos were then transferred to the women, who received multiple embryos in order to boost the chance of a successful pregnancy. Holzer said his team had progressively improved the success rate, noting that three of the pre...

Strange Sex Life of Mole-rats may Provide Clues About Human Infertility

...ower numbers of sperm. In most non-breeding males, sperm that are present are non-motile, Dr Faulkes added. The queen also appeared to exert control over breeding males, so their testosterone levels are kept down until she is ready to mate.However, the stress-related block to fertility was reversible, sa...

Test-tube Babies: Mood Swings are Key to Fertility Choice

...an's ovary and fertilising them with her partner's sperm in a lab dish, creating embryos that can then be implanted into the womb. An important decision, though, is whether to transfer only a single embryo or more embryos at the same time. Research has shown that pregnancies with single embryos suffer ...

Embryo Protection Law in Germany

...avour of ICSI, with 166,711 ICSI (intracytoplasmic sperm injection) procedures (60 per cent) versus 114,512 IVF (in vitro fertilisation) procedures (40 per cent). The number of frozen embryo transfers has continued to increase, rising from around 18 per cent when the consortium first started collecting dat...

Belgian Doctor Restores Woman's Fertility With Ovary Graft

...f the woman's ova were removed and fertilised with sperm by injection. Two embryos were formed from the process. The woman, who is in her mid-thirties and who was not named, was made infertile in 1990 by chemotherapy and total body irradiation treatment before being given a bone marrow transplant. Donn...

Children Born After PGD as Healthy as Kids Born After ART

...in vitro fertilisation (IVF) with intracytoplasmic sperm injection (where a sperm is injected directly into an egg) is performed, followed by genetic testing of the embryos. Only una...

Questions Raised Over Safety of In-vitro Fertilization

...en fertilized it in a test tube with her husband's sperm before replacing it in her womb. Since then, proce...r concern is a procedure known as intracytoplasmic sperm injection (ICSI), which involves passing a single sperm directly into an egg. Research has found tha...

Afghan Couple Turn to Indian Sperm Banks for Help

Kashmiri sperms stocked by Indian sperm banks are at a premium among Afghan couples, repor...nized, infertile Afghan couple do scout around for sperm donors and invariably land in India. Ironically it is perhaps the never-ending conflicts, sparked ...

It is Men, and Not Women, to Be Blamed for Recurrent Pregnancy Loss

...t NIHFW's department of biomedicine. "Though the sperm count and mobility were almost normal, we found th... "While 20 cases of the 35 showed a defect in the sperm plasma membrane and enzyme in the top of the sperm (Acrosome), 29 cases reported problems in the nuc...

Indian-born Australian Scientist Wins Award for Stem Cell Research

...ked at molecules present on the surface of egg and sperm to prevent fertilisation." He migrated to Sydney in 1995. "I joined Macquarie University as chief scientist in reproduction physiology of marsupials. We developed a system of in-vitro fertilisation for brush-tailed possums for the first time. It w...

Immune Substance in Semen may Help Determine Male Fertility

...tion inhibitory factor (MIF) is the key to helping sperm mature, which is necessary for its union with an egg. The findings, published in Molecular Medicine, attain significance as they may lead to a diagnostic test to determine fertility status. During the study, the researchers collected semen samp...

Immune System Protein Could Be the Key Infertility

... Past studies have found it plays a key role in sperm maturation. But MIF has also been linked to severa... were infertile and had round instead of elongated sperm cells. The team said the molecule was widely distributed in round sperm cells but could be found a...

Infertility is Seen in Men With SLE

...ed to date on testes function and its relevance to sperm abnormalities in male SLE patients. In addition, t... of the genitalia, and semen analysis to determine sperm count, morphology and motility. For SLE patients, analysis of antisperm antibodies (which can advers...

IVF Tourism Marred by Ethical Differences in EU

...in the law that gives children born through egg or sperm donation the right to trace their biological parents. Many of them are traveling to Spain, Cyprus and Eastern Europe. Germany and Italy, for example, ban embryo-freezing, egg donation and embryo-screening for inherited diseases, forcing couples who...

NASA Gets Ready To Address Tough Questions

...uts of reproductive age should be required to bank sperm or eggs because of the risk of genetic mutations from radiation exposure during long trips. Already, NASA is considering genetic screening in choosing crews on the long-duration missions. At present, it is prohibited.'Genetic screening must be appr...

Female Ducks Develop Complicated Genitals to Outwit Aggressive Males

...have for disposing of waste and that both eggs and sperm come out of. Brennan noted that in many species,.... Brennan suspects that the female ducks can force sperm into one of the pockets and then expel it. It only makes sense as a barrier, she said. To support ...

Fertility Rates Felled By Diabetes

... brought about a damage of the sperms. Defective sperm DNA that was observed by the scientists in these m... infertility. Here an average of 52 percent of the sperm were found to be fragmented as against 32 percent in normal men. The study also found a higher rate ...

Research Suggests Mens Sexual Behavior Adapts to Perceived Threats

...hat evidence is building for what researchers call sperm competition. According to a review appearing in C... indicate that males have evolved to deliver their sperm more effectively to females with multiple partners. Although many people are familiar with the ide...

Multiple Sclerosis Could Be Checked Through Testosterone Gel

...le mass and strength, fat distribution, bone mass, sperm production, sex drive, and potency. Testpsterone is a chemical messenger from one cell (or group of cells) to another. All multicellular organisms produce hormones. For most men, testosterone levels naturally decline but still remain within the n...

Stem Cell Answer to Infertility in Five Years, Says Scientist

...n five years it should be possible to grow mature sperm from adult stem cells, says Dr.Karim Nayerina, not...tem cells of mice into becoming mature sperm. This sperm was successfully used to fertilize eggs, resulting in the live birth of seven mice. While six of the...

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