Sperm

Environmental chemical cocktail may sabotage sperm

New research has shown that combinations of chemicals found in everyday products and food have subtle but potentially damaging effects on sperm fertility. Professor Lynn Fraser told the 21st annual conference of the European Society of Human Reproduction and Embryology today (Wednesday), that her previous research had shown that certain chemicals known to mimic the female sex hormone, oes...

Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory

Scientists in the UK have proved that human embryonic stem cells can develop in the laboratory into the early forms of cells that eventually become eggs or sperm. Their work opens up the possibility that eggs and sperm could be grown from stem cells and used for assisted reproduction, therapeutic cloning and the creation of more stem cells for further research and for the improved treatments for...

Sperm trading can resolve hermaphrodite mating conflicts

By directly manipulating mating performance in a tropical sea slug, Chelidonura hirundinina, researchers of the University of Tbingen have now shed light on the bizarre reproductive conflicts encountered by hermaphroditic animals. In some hermaphroditic species, such as C. hirundinina, mating partners may insist on copulating as a "male," "female," or both, resulting in unique biological conflict...

Sperm stem cells closer to being like embryonic stem cells

New experiments that prevented rat sperm stem cells from changing permanently into sperm have brought researchers one step closer to coaxing such cells to behave like embryonic stem cells, capable of growing into many other types of cells in the body. Researchers at the Cecil H. and Ida Green Center for Reproductive Biology Sciences at UT Southwestern Medical Center devised methods to keep...

UK sperm donor crisis

A study by a leading UK fertility centre has found that the numbers of men ?especially students ?coming forward as potential sperm donors fell sharply after 2000, almost certainly due to growing awareness that changes in the law would be removing the right to anonymity. The fall in applications, leading to a significant decline in the numbers recruited, has prompted researchers from the Ne...

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Sperm at Biology Products

Sperm viability Fluorometric (green) Assay Kit, LIVE/DEAD® from Molecular Probes (Invitrogen)

Description:LIVE/DEAD® Sperm Viability Kit *200-1000 assays*...
Company:Molecular Probes (Invitrogen)

Sperm at Biology Technology

Intracytoplasmic Spermatocyte Injection (ICSI)

The number of infertile couples has increased in recent years and is now estimated at 1520% of all couples worldwide. Since its introduction into reproductive medicine in 1978 , in vitro fertilization has been considered a successful method of treating tubal ste...

Sperm at Biology Definition

Spermatogenesis

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Spermatid

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Sperm at Biology Dictionary

Spermiogenesis

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Sperm at Medicine News

Sperm washing helps couples – Breakthrough in focu

In many unfortunate instances we see couples who are HIV sero discordant but who would like to have a baby. If the husband is HIV –1 positive and the wife is negative and they are planning to have a child the problem arises because sexual intercourse carries a 1 in 500 risk of transmitting the virus to the female partner and through her to the fetus. Sperm washing is a risk-reduction option in wh...

Now you can identify Sperm and Egg donors

The British government, in a landmark decision, has ruled that henceforth donors of sperms and eggs can be identified if both the donor and recipient desire so. However if the donor feels not to reveal his/her identity, it will not be revealed. Prior to this ruling the identity of the donors of sperms and eggs have always been withheld. This would be a major ruling with far reaching consequences....

Shapely sperm-a valuable indicator of fertility

According to a study, shapely sperm is the best indicator of a man's fertility, that rewrites the standards for analyzing semen samples. According to Dr. Dav Guzhik, chairman of obstetrics and gynecology at the University of Cleavland, every treatment for infertility depends upon first establishing what's normal and abnormal. The World Health Organization's widely used standards to classify seme...

Elevated Ozone Levels Hurt Sperm Count

According to a new research, done one a huge men population, which evaluated more than 14,000 sperm samples, found that ozone can adversely affect a man's sperm, reducing their numbers as well as their crucial ability to move or "swim,". "Our most significant finding was that as the ozone level went up, the sperm concentration went down," said Dr. Rebecca Z. Sokol, a professor of medic...

Mutant sperm beat out healthy brethren in study

According to Researchers Men produce more mutant sperm as they get older //and they found to their surprise that some of these mutations give the sperm an edge. The deformed sperm increase the risk of disease in the men's offspring, but nonetheless are likely to beat out their healthy counterparts in the race to fertilize the egg, the researchers said. The research team was trying t...

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Sperm at Medicine Products

SPERMALITE SQA-V

Description:A new generation in automated semen analysis, with accurate, consistent, reliable results at the push of a button. Automation provides standardization and ease of use and takes the subjectivity out of semen analysis. SPERMALITE is a new-generation automated semen analyzer providing WHO parameters for remote semen analysis, and a hard -copy analysis report in less than 75 seconds....
Company:Siemens Medical Solutions Diagnostics

Anti-Sperm Antibodies

Description:ARUP Laboratories is a national reference laboratory and a worldwide leader in innovative laboratory research and development. ARUP offers an extensive test menu of highly complex and unique medical tests in clinical and anatomic pathology. Owned by the University of Utah, ARUP Laboratories' clients include more than half of the nation's university teaching hospitals and children's hospitals, maj...
Company:ARUP Laboratories

Sperm Antibodies

Description:ARUP Laboratories is a national reference laboratory and a worldwide leader in innovative laboratory research and development. ARUP offers an extensive test menu of highly complex and unique medical tests in clinical and anatomic pathology. Owned by the University of Utah, ARUP Laboratories' clients include more than half of the nation's university teaching hospitals and children's hospitals, maj...
Company:ARUP Laboratories

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Oligospermia

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