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Researchers solve mystery of radial glial cells

Researchers at Cold Spring Harbor Laboratory (CSHL) have solved an important piece of one of neuroscience's outstanding puzzles: how progenitor cells in the developing mammalian brain reproduce themselves while also giving birth to neurons that will populate the emerging cerebral cortex, the seat of cognition and executive function in the mature brain.

24 Sep 2012

Number of recorded dengue cases up 36% over last year in Costa Rica

"A total of 8,480 people have been affected by dengue fever in Costa Rica" so far this year, representing an increase of 36 percent, or 2,230 more cases than during the same period last year, according to a Ministry of Health report, Xinhua News reports.

19 Sep 2012

Adolescent menstrual disorders linked to hyperandrogenemia

Menstrual disorders in adolescence are associated with an increased risk for hyperandrogenemia, research shows.

19 Sep 2012

Disorganized eggs hinder fertility in obese women

Severely obese women are at an increased risk for producing eggs that have multiple spindles and disorganized chromosomes, possibly explaining the reduced fertility in this population, report researchers.

13 Sep 2012

BRCA1/2 gene mutations lethal to human embryos

BRCA1/2 gene mutations, widely associated with breast and ovarian cancer risks in women, are, in principle, lethal to human embryos, according to new research conducted by three teams of researchers from the Center for Human Reproduction (CHR) in New York City, the Medical University Vienna in Vienna, Austria, and the Medical University Graz, Graz, Austria.

13 Sep 2012

'Deep sleep' intimately involved in complex control of pubertal onset

Slow-wave sleep, or 'deep sleep', is intimately involved in the complex control of the onset of puberty, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology and Metabolism (JCEM).

12 Sep 2012

Indiana University releases Kinsey Reporter

Indiana University has released Kinsey Reporter, a global mobile survey platform for collecting and reporting anonymous data about sexual and other intimate behaviors. The pilot project allows citizen observers around the world to use free applications now available for Apple and Android mobile platforms to not only report on sexual behavior and experiences, but also to share, explore and visualize the accumulated data.

7 Sep 2012

JQ1 compound dramatically prevents sperm production in mice

Attention men: The day may be coming soon when you can take your own birth control pill with no side effects, according to a study done by a group of scientists that includes a Texas A&M University researcher.

6 Sep 2012

Telaprevir offers advantages in patients with chronic hepatitis C infection of genotype 1

The drug telaprevir has been available for treatment of chronic hepatitis C infection of genotype 1 since autumn 2011. In an early benefit assessment pursuant to the "Act on the Reform of the Market for Medicinal Products" (AMNOG), the German Institute for Quality and Efficiency in Health Care (IQWiG) examined whether telaprevir offers an added benefit compared with the present standard therapy.

6 Sep 2012

Key facts about polycystic ovary syndrome

September marks Polycystic Ovary Syndrome (PCOS) awareness month and with this condition affecting millions of women in the world, there are some key facts about the condition to highlight that can affect a women's fertility when suffering with the disorder.

6 Sep 2012

Seven antibiotic-resistance genes swapped between human and soil bacteria

Soil bacteria and bacteria that cause human diseases have recently swapped at least seven antibiotic-resistance genes, researchers at Washington University School of Medicine in St. Louis report Aug. 31 in Science.

1 Sep 2012

Do Akin's rape comments put GOP ticket in harm's way?

News outlets analyze the potential repercussions to Mitt Romney's presidential bid by the statements made by Missouri Senate Republican candidate Todd Akin. Also examined is presumptive GOP vice presidential nominee Paul Ryan's co-sponsorship of legislation with Akin, including one that would give legal protection to an embryo.

22 Aug 2012

Semen protein acts on the female brain to prompt ovulation

An international team of scientists led by Gregg Adams at the University of Saskatchewan has discovered that a protein in semen acts on the female brain to prompt ovulation, and is the same molecule that regulates the growth, maintenance, and survival of nerve cells.

21 Aug 2012

Walnuts optimize male fertility

Eating walnuts on a daily basis seems to improve the quality of men’s sperm, show study findings.

20 Aug 2012

Pyruvate kinase M2 fuels tumor growth by influencing H3 histone protein

A metabolic protein that nourishes cancer cells also activates tumor-promoting genes by loosening part of the packaging that entwines DNA to make up chromosomes, a team led by scientists at The University of Texas MD Anderson Cancer Center reports in the Aug. 16 issue of Cell.

17 Aug 2012

Walnuts provide key nutrients that may be essential in male reproductive health

Research published in the recent issue of Biology of Reproduction Papers-in-Press reports that 75 grams (approximately 2.5 ounces) of walnuts consumed per day improved sperm vitality, motility, and morphology (normal forms) in a group of healthy young men between 21-35 years of age.

17 Aug 2012

Article describes novel technique to study interactions between HIV-1 and P. falciparum

The World Health Organization estimates that in 2011 there were 216 million cases of malaria and 34.2 million people living with HIV. These diseases particularly afflict sub-Saharan Africa, where large incidence of co-infection result in high mortality rates. Yet, in spite of this global pandemic, interactions between the parasite that causes malaria, Plasmodium falciparum, and HIV-1 are poorly understood.

16 Aug 2012

CYCLOPS genes may serve as targets for cancer therapies

The genomic tumult within tumor cells has provided scientists at Dana-Farber Cancer Institute and the Broad Institute of MIT and Harvard with clues to an entirely new class of genes that may serve as an Achilles' heel for many forms of cancer.

16 Aug 2012

Smoking is bad for your sperm

In men with varicocele, smoking alters semen quality and sperm function as well as inducing seminal oxidative stress, report researchers.

13 Aug 2012

Researchers uncover how pathological cells activate themselves in chronic lymphocytic leukaemia

Researchers in the group of Prof. Dr. Hassan Jumaa, Centre for Biological Signalling Studies (BIOSS) of the University of Freiburg, Department for Molecular Immunology, have identified a new mechanism that causes immune cells to convert into malignant cancer cells.

13 Aug 2012