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Latest Sperm Stories

2012-01-10 11:17:06

Who knew that male fertility depends on sperm-cell architecture? A University of Illinois study reports that a certain omega-3 fatty acid is necessary to construct the arch that turns around, immature sperm cell into a pointy-headed super swimmer with an extra long tail. "Normal sperm cells contain an arc-like structure called the acrosome that is critical in fertilization because it houses, organizes, and concentrates a variety of enzymes that sperm use to penetrate an egg," said Manabu...

2012-01-09 17:29:54

Melissa Perry, Sc.D., M.H.S., professor and chair of the Department of Environmental and Occupational Health at the GW School of Public Health and Health Services and adjunct associate professor at the Harvard School of Public Health, led an observational study indicating that environmental exposure to organochlorine chemicals, including Polychlorinated Biphenyls (PCBs) and p,p´-DDE (the main metabolite of the insecticide DDT) can affect male reproduction. The research was published...

Listen Up Men! Your Laptop’s Wi-Fi Could Be Killing Your Sperm
2011-11-29 08:24:18

Wi-Fi technology could be dangerous to a man´s sperm quality, suggests a new study published in the journal Fertility and Sterility. Argentinean scientists, led by Conrado Avendano of the Nascentis Center for Reproductive Medicine in Cordoba, describe in their report how they got semen samples from 29 healthy men, placed a few drops from those samples under a laptop with a Wi-Fi connection, and then used the laptop to do various everyday tasks. Within four hours of use, 25 percent...

2011-11-15 20:27:40

A Ben-Gurion University of the Negev researcher has achieved a significant breakthrough in male fertility, producing normal sperm from mouse cells. "This study may open new therapeutic strategies for infertile men who cannot generate sperm and/or pre-pubertal cancer patients at risk of infertility due to aggressive chemo- or radiotherapy and cannot cryopreserve sperm as in adult patients," explains Prof. Mahmoud Huleihel, of BGU's Shraga Segal Department of Microbiology and Immunology in...

2011-11-01 15:19:14

San Francisco State University study published by the journal Genetics Compared to most other cells in an organism, sperm undergo a radical transformation to become compact and mobile delivery systems for paternal DNA. Even though sperm looks and moves quite differently across species, SF State researcher Diana Chu and colleagues now say that there are at least a few key enzymes that are critical for sperm development and mobility in species as different as mice and nematode worms. The...

Cells Are Crawling All Over Our Bodies
2011-10-19 03:28:51

Biologists at Florida State devise new way to watch how cells move For better and for worse, human health depends on a cell's motility —— the ability to crawl from place to place. 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...

Important Step Identified In Sperm Reprogramming
2011-09-23 03:39:10

   When sperm meets egg, the chemical instructions that tag sperm cells must be erased so that human life can start anew. 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...

World's Largest Sperm Bank Turning Down Redheaded Donors
2011-09-19 14:23:40

The world's largest sperm bank, Cryos, said recently that it is now turning down redheaded donors because supply is currently greater than demand, according to a report by the UK's Telegraph. Cryos' director Ole Schou said that because supply has become so great in recent years, it has been able to become more picky about its donors. "There are too many redheads in relation to demand," he told Danish newspaper Ekstrabladet. "I do not think you chose a redhead, unless the partner - for...

Sperm Donor Found To Be The Father Of 150 Children
2011-09-06 12:53:44

  The New York Times reported recently that one sperm donor is the father of 150 children. According to the report, the son of a donor has found that he has 150 half-siblings who came from the same donor. Experts are concerned that this trend could result in accidental incest between children fathered by the same donor. “My daughter knows her donor´s number for this very reason,” the mother of a teenager conceived via sperm donation in California told The New...


Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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