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The term sperm refers to the male reproductive cells. In the types of sexual reproduction known as anisogamy and oogamy, there is a marked difference in the size of the gametes with the smaller one being termed the "male" or sperm cell. The human sperm cell is haploid, so that its 23 chromosomes can join the 23 chromosomes of the female egg to form a diploid cell.

Nearly 4 million infants die from vaccine-preventable diseases worldwide each year

Nearly 4 million children under 5 die from vaccine-preventable diseases worldwide each year, and two University of Michigan doctoral ecology students are working to change that.

2 Apr 2014

Scientists move a step closer to preserving fertility in young boys with cancer

Scientists have moved a step closer to being able to preserve fertility in young boys who undergo chemotherapy and radiation treatments for cancer. The new research, published in Fertility and Sterility, the journal of the American Society for Reproductive Medicine, addresses the safety of an option scientists are developing for boys who aren't sexually mature and cannot bank sperm.

28 Mar 2014

UMass Medical School students win 2014 Harold M. Weintraub Graduate Student Award

Colin Conine and Emma Watson, PhD students in the Graduate School of Biomedical Sciences (GSBS) at the University of Massachusetts Medical School, received the 2014 Harold M. Weintraub Graduate Student Award for research into the mechanisms governing epigenetic inheritance and the complex interactions between diet, gene expression and physiology.

26 Mar 2014

Study shows how transcription factor p73 promotes process of producing fertile sperm

The process of producing high-quality, fertile sperm requires many steps. A study in The Journal of Cell Biology shows how the transcription factor p73 promotes this process by regulating the adhesions between developing sperm and their support cells.

25 Mar 2014

Antares Pharma announces launch of OTREXUP to Dermatologists

Antares Pharma, Inc. today announced LEO Pharma's launch of OTREXUP to Dermatologists, the first U.S. Food and Drug Administration approved subcutaneous (SC) methotrexate (MTX) product for once weekly self-administration with an easy-to-use, single dose, disposable auto injector.

10 Mar 2014

New study shows male hormones play important role; may enhance IVF therapy in women

Several fertility clinics across the country are beginning to administer testosterone, either through a patch or a gel on the skin, to increase the number of eggs produced by certain women undergoing in vitro fertilization (IVF).

5 Mar 2014

Research could lead to early diagnosis and treatment of prostate cancer

Prostate cancer patients could get better diagnosis and treatment for the disease in the future thanks to a successful research project at the University of Essex.

25 Feb 2014

Microbes are more likely to adhere to tube walls in flowing water

In a surprising new finding, researchers have discovered that bacterial movement is impeded in flowing water, enhancing the likelihood that the microbes will attach to surfaces.

25 Feb 2014

Phasefocus’ KTP associate Dr Suman receives runners up spot for Cellular Heaven and Hell time-lapse video

Phase Focus Ltd (Phasefocus), the company that is revolutionizing microscopy and imaging with the Phasefocus Virtual Lens® technology, reports on the Celldance competition results held at the recent annual ASCB meeting. KTP associate, Dr Rakesh Suman, was runner up with his video entitled "Cellular Heaven & Hell."

From Phase Focus Limited 18 Feb 2014

New video tracking system could help select most viable sperm

To improve their chances of success, in vitro fertilization (IVF) clinics need to assess the viability of the sperm they use. Now doctors may soon have a new technique to help them sort the good sperm cells from the less viable ones: a tracking system, developed by a team of researchers from four European institutions, that takes 3-D movies of living sperm.

12 Feb 2014

Researchers to highlight biomedical breakthroughs, new discoveries at Biophysical Society Meeting

Ask a question about how the human immune system fights a tropical disease, or how viruses like HIV use genetic tricks to resist drugs, or how plant cells capture light, or how Alzheimer's takes hold in the brain, or how we can better fight diseases like cancer, or why some sperm cells are fertile while others are not, and you may have to narrow your gaze to the nanoscale to find answers.

10 Feb 2014

GenePeeks receives patent for developing innovative algorithms to create hypothetical "digital babies"

GenePeeks, Inc., a genetic technology company focused on pre-conception risk prediction, announced today it has been issued patent No. 8,620,594, titled "Method and System for Generating a Virtual Progeny Genome," by the United States Patent and Trademark Office.

28 Jan 2014

New method allows for large-scale generation of human embryonic stem cells

A new method allows for large-scale generation of human embryonic stem cells of high clinical quality. It also allows for production of such cells without destroying any human embryos.

27 Jan 2014

UCSF study finds widespread exposure to banned endocrine disrupters

Americans are being exposed to significantly lower levels of some phthalates that were banned from children's articles in 2008, but exposures to other forms of these chemicals are rising steeply, according to a study led by researchers at UC San Francisco.

17 Jan 2014

Risk of serious complications higher for babies conceived by assisted reproductive therapies

A University of Adelaide study has shown that the risk of serious complications such as stillbirth, preterm birth, low birth weight and neonatal death is around twice as high for babies conceived by assisted reproductive therapies compared with naturally conceived babies.

8 Jan 2014

Research: Smoking alters several genes

The fact that smoking means a considerable health risk is nowadays commonly accepted. New research findings from Uppsala University and Uppsala Clinical Research Center show that smoking alters several genes that can be associated with health problems for smokers, such as increased risk for cancer and diabetes

17 Dec 2013

Queen's University professor wins Gold Award for Innovation for research on male infertility

A Queen's University Professor has received international recognition for her research into male infertility.

16 Dec 2013

Infants likely becoming exposed to potentially harmful substances via PCPs

Through lotions, shampoos and other personal care products (PCPs), infants and toddlers are likely becoming exposed to potentially harmful substances, called parabens, at an even higher level than adult women in the U.S., researchers have reported.

12 Dec 2013

Father's diet before conception plays crucial role in health of offspring

Mothers get all the attention. But a study led by McGill researcher Sarah Kimmins suggests that the father's diet before conception may play an equally important role in the health of their offspring. It also raises concerns about the long-term effects of current Western diets and of food insecurity.

11 Dec 2013

Celgene subsidiary presents REVLIMID study results on lymphoma at ASH annual meeting

Celgene International Sàrl, a wholly-owned subsidiary of Celgene Corporation (NASDAQ:CELG) today announced that results from two studies of REVLIMID (lenalidomide) combinations in patients with diffuse large B-cell lymphoma (DLBCL) were presented at the American Society of Hematology annual meeting in New Orleans, La.