Sperm
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Survey: U.S. doctors disagree on pregnancy start
Yahoo! News: Pregnancy Search &bull Nov 18, 2011
(Reuters) - Most U.S. doctors believe pregnancy starts when the sperm fertilizes the egg, a survey shows, contradicting the position of a key medical group with a view that could potentially affect U.S. policy and laws regarding contraception and research.… Full Story »
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Pregnancy Beginning: Even Doctors Don't Agree
Yahoo! News: Pregnancy Search &bull Nov 17, 2011
Curlin's team sent questionnaires to about 1,000 ob-gyns and asked them whether pregnancy begins at conception (fertilization), when a sperm fertilizes an egg, or at implantation, when the blastocyst, a collection of cells that will become the fetus, implants in… Full Story »
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When does pregnancy begin? Doctors disagree (Reuters)
Yahoo! News: Parenting/Kids News &bull Nov 17, 2011
NEW YORK (Reuters Health) - Though most doctors will give you a definition of when pregnancy begins, it's not always the same one, according to a new survey. Most of the polled obstetrician-gynecologists believe pregnancy begins when the sperm fertilizes… Full Story »
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Fertility chip measures concentration and motility of sperm
Science Daily: Pregnancy and Childbirth News &bull Oct 28, 2011
The chip can be inserted into a compact device for one-off use. A home test kit will soon make it possible for men to test their sperm in a familiar environment. As a result, there is a greater chance of obtaining a correct diagnosis, also the method is simple and inexpensive. Segerink's doctoral defence will take place on 4 November 2011. The lab-on-a-chip developed by… Full Story »
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'Simplifying the system will benefit egg and sperm donors'
The Daily Telegraph: Health: Women's &bull Oct 19, 2011
How do you reward a person so unselfish that they donate their eggs or sperm (gametes), are prepared to go through numerous medical procedures, some more intrusive than others, and are willing to be available to the offspring generations later?… Full Story »
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Enlarged Prostate: A Complex Problem
WebMD: Women: Pregnancy &bull Oct 18, 2011There are many treatments for enlarged prostates (BPH), but all have side effects and possible complications. Learn what to expect -- and how to decide. For most men, these nightly bathroom runs may be the first sign of an enlarged prostate. Other symptoms… Full Story »
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Cells are crawling all over our bodies, but how?
Science Daily: Pregnancy and Childbirth News &bull Oct 18, 2011
In every human body, millions of cells -are crawling around doing mostly good deeds -- though if any of those crawlers are cancerous, watch out. This is not some horrible sci-fi movie come true but, instead, normal cells carrying out their daily duties," said Florida State University cell biologist Tom Roberts. For 35 years he has studied the mechanical and molecular means by which amorphous single cells purposefully propel themselves throughout the body in amoeboid-like fashion --absent muscles,… Full Story »
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New Report Casts More Doubt on Virus' Link to Chronic Fatigue Syndrome
MedicineNet: Women's Health General &bull Sep 23, 2011
THURSDAY, Sept. 22 (HealthDay News) -- Researchers have shot another arrow through the credibility of claims that a virus likely causes chronic fatigue syndrome (CFS). This time, results from nine different labs around the United States failed to differentiate patients with CFS from healthy controls solely on the basis of whether they tested positive for xenotropic murine leukemia virus-related virus (XMRV). The study was published… Full Story »
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Important step in sperm reprogramming identified
Science Daily: Pregnancy and Childbirth News &bull Sep 22, 2011
One way these instructions are erased is through demethylation, the removal of specific chemical tags or methyl groups that dot the underlying DNA of cells. Though scientists have known about this phenomenon for a decade, exactly how such "reprogramming" occurs has proved elusive. Now, a study from the University of North Carolina at Chapel Hill School of Medicine has illuminated a key step of demethylation, giving stem cell researchers critical information… Full Story »
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I a redhead and my sperm is just as good as yours
CNN: Women's Health &bull Sep 21, 2011
Editor's note: Christian Lander is a writer living in Los Angeles. His first book, "Stuff White People Like," is published by Random House. His new book is "Whiter Shades of Pale: The Stuff White People Like, Coast to Coast, from Seattle's Sweaters to Maine's Microbrews. " He blogs at Stuff WhitePeopleLike. As a redheaded man myself, I was concerned at this news -- though it really is no surprise to me. Using the unscientific method of trying to hit on girls during my… Full Story »
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Redheads Turned Down by Sperm Banks
FamilyEducation Blogs &bull Sep 20, 2011
There isn't really any hard and fast reason why this is the case. Some speculate it's because the future parents are concerned about the amount of teasing redheads face on the playground and at school. Still others think, well, it's… Full Story »
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Beyonce and Jay-Z take an old-fashioned approach to pregnancy
The Daily Telegraph: Health: Women's &bull Aug 30, 2011
Hollywood was reported to be in an official state of turmoil last night over rumours that Beyonce Knowles had become pregnant using her own womb, eggs and her husband's sperm. We've all learnt our lesson from Demi Moore. Just look what happened to her career when she appeared on the cover of Vanity Fair wearing nothing but a hand over her belly and her breasts." That's enough joking. What is irrefutable is that on Monday night, Beyonce turned up at the MTV awards cradling and stroking a noticeable bump,… Full Story »
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How to improve sperm and keep it healthy
She Knows: Pregnancy & Baby Blog &bull Aug 23, 2011
Although many people assume that fertility issues are mainly female related, past research shows that about half of all fertility problems for couples can be linked back to problems related to sperm quality and quantity. Not all sperm problems are… Full Story »
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Scientists find how "sticky" egg captures sperm (Reuters)
Yahoo! News: Parenting/Kids News &bull Aug 19, 2011
Reuters - Scientists have uncovered exactly how a human egg captures an incoming sperm to begin the process of fertilization and say their discovery could in future help couples who suffer from infertility. Full Story »
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How sticky egg captures sperm: Discovery could help explain infertility causes and provide new contraceptive targets
Science Daily: Pregnancy and Childbirth News &bull Aug 18, 2011
The research identifies the sugar molecule that makes the outer coat of the egg 'sticky', which is vital for enabling the sperm and egg to bind together. Researchers across the world have been trying to understand what performs this task for over thirty years. The scientists behind this study believe their work could help address some of the previously unexplained causes of human infertility and sub-fertility and be very useful for diagnosing this problem in couples who are unable to have children. It could also provide a new target for the development of natural contraceptive agents. The international team, from… Full Story »
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Spermless mosquitoes could help reduce malaria's spread
Chicago Tribune &bull Aug 8, 2011
Male mosquitoes that do not produce sperm could cause females to lay infertile eggs -- and thus, reduce incidence of malaria, a new study finds. Forget mosquito netting and bug spray. Researchers are focusing on another way to reduce the… Full Story »
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Pa. zoo on brink of finishing elephant sperm bank
San Francisco Chronicle: Health &bull Aug 8, 2011
(08-08) 12:06 PDT PITTSBURGH, (AP) -- Zoo officials trying to establish North America's first elephant sperm bank have been slowed by bureaucratic hurdles but hope South African officials will approve shipping frozen... Full Story »
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Japan team produces sperm from mice stem cells (AP)
Yahoo! News: Parenting/Kids News &bull Aug 7, 2011
TOKYO - A team of Japanese scientists has produced viable sperm from the stem cells of mice. The experiment could be a breakthrough toward treating infertile humans. The Kyoto University researchers say they managed to induce mice stem cells into… Full Story »
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Sperm made from stem cells could aid men with fertility problems
Chicago Tribune &bull Aug 5, 2011
If you know just one thing about embryonic stem cells, it's probably that they have the potential to grow into any type of cell in the body. That, of course, is why scientists find them so valuable. Full Story »
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Japan scientists coax sperm from stem cells (AFP)
Yahoo! News: Parenting/Kids News &bull Aug 5, 2011
WASHINGTON (AFP) - Scientists in Japan said Friday they have for the first time succeeded in coaxing sperm cells from mouse embryonic stem cells, a breakthrough that could one day help humans overcome infertility. The sperm were used to fertilize… Full Story »
