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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.
Findings offer new paths towards improved fertility treatments and development of new contraceptives

Findings offer new paths towards improved fertility treatments and development of new contraceptives

​Researchers at the Wellcome Trust Sanger Institute have discovered interacting proteins on the surface of the sperm and the egg essential to begin mammalian life. These proteins, which allow the sperm and egg to recognize one another, offer new paths towards improved fertility treatments and the development of new contraceptives. [More]

Human testes respond differently to endocrine disrupting chemicals

Human and rat testes respond differently to endocrine disrupting chemicals such as BPA in two thirds of all cases, according to a recent review. As human safety levels are extrapolated from rodent data, the study could lead to a re-evaluation of the acceptable daily intake for many endocrine disruptors. [More]

New drug for treating Rett syndrome is on the horizon

A powerful new drug which could relieve the symptoms of devastating childhood disease Rett syndrome is on the horizon thanks to a funding injection of -180,000. [More]
Nearly 4 million infants die from vaccine-preventable diseases worldwide each year

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. [More]
Scientists move a step closer to preserving fertility in young boys with cancer

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

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. [More]
Study shows how transcription factor p73 promotes process of producing fertile sperm

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. [More]
Antares Pharma announces launch of OTREXUP to Dermatologists

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. [More]

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). [More]

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. [More]

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

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." [More]

Forecast report on Global IVF market

Reportbuyer.com just published a new market research report: Global In Vitro Fertilization Market 2012-2016 [More]

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. [More]

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. [More]
GenePeeks receives patent for developing innovative algorithms to create hypothetical "digital babies"

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. [More]
New method allows for large-scale generation of human embryonic stem cells

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. [More]
UCSF study finds widespread exposure to banned endocrine disrupters

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. [More]

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. [More]
Research: Smoking alters several genes

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 [More]