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Sperm's immune-protection properties could provide link to how cancers spread

Sugar-based markers on human sperm cells which may prevent them from being attacked by the female immune system could provide a vital clue to how some cancers spread in the human body, according to new research published on 14 December 2007.

14 Dec 2007

New study suggests why vaccines directed against cancer, HIV don't work

Researchers from the University of Missouri and Imperial College London have found evidence suggesting why vaccines directed against the virus that causes AIDS and many cancers do not work.

14 Dec 2007

Likelihood of falling pregnant steadily decreases the fatter a woman is

A new study of obesity and the probability of pregnancy has shown that a woman's chances of a spontaneous pregnancy steadily decrease the fatter she is.

13 Dec 2007

Relationship of female sex hormones to mood states and disorders merits better research

Countless movies and TV shows make light of women's so-called “moodiness”, often jokingly attributing it to their menstrual cycle or, conversely, to menopause.

13 Dec 2007

Do rural and non-rural single, young adults differ in their risk and protective HIV/STD behaviors?

Single young adults living in rural areas are no more inclined to engage in safe sex behaviors than their non-rural peers, according to a new analysis by Indiana University sexual health experts of a nationally representative survey.

27 Nov 2007

Exposure to polycyclic aromatic hydrocarbons prior to pregnancy could limit offspring's fertility

A study by a research team at the Samuel Lunenfeld Research Institute of Mount Sinai Hospital suggests that mothers who are exposed to certain toxic environmental compounds prior to pregnancy could limit their offspring's fertility.

27 Nov 2007

Antidepressant drugs MAY make you live longer

American researchers are suggesting that antidepressant drugs may possibly lengthen a person's lifespan.

26 Nov 2007

Viral infection affects important cells' stress response

Viral infection disrupts the normal response of mammalian cells to outside deleterious forces, cleaving and inactivating a protein called G3BP that helps drive the formation of stress granules, which shelter the messenger RNAs that carry the code for protein formation, said researchers from Baylor College of Medicine in Houston.

15 Nov 2007

New model of HIV dynamics

The emergence of drug resistant forms of HIV often underlies the failure of current antiretroviral therapies for HIV infection.

28 Oct 2007

Discovery of a key cell-signaling pathway

University of Alabama at Birmingham (UAB) researchers have discovered a key cell-signaling pathway that regulates cell progression and switches on front-to-back body patterning in tadpoles.

28 Oct 2007

Cow infections could provide clue to preventing infertility in women

Researchers at the Royal Veterinary College, London, have made a significant breakthrough in their understanding of how infection of the uterus damages fertility in cows.

25 Oct 2007

How Rhesus Macaques and Humans have conquered the world

When it comes to their social behavior, people sometimes act like monkeys, or more specifically, like rhesus macaques, a type of monkey that shares with humans strong tendencies for nepotism and political maneuvering, according to research by Dario Maestripieri, an expert on primate behavior and an Associate Professor in Comparative Human Development and Evolutionary Biology at the University of Chicago.

24 Oct 2007

Microbix Biosystems granted U.S. patent for its influenza vaccine

Microbix Biosystems Inc. has been granted a patent by the U.S. Patent Office for its technology - VIRUSMAX - which enables vaccine manufacturers to double the amount of influenza vaccine they produce each year.

22 Oct 2007

New virus drug will have to shoot at moving targets

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22 Oct 2007

Evidence of same-sex mating in nature

Cryptococcus neoformans is a major cause of fungal meningitis in predominantly immunocomprised individuals.

19 Oct 2007

New stem cells by reprogramming

Researchers are discovering new ways to help ‘de-program' specialised cells so that they can be re-programmed to form a range of different types of tissue, an international meeting of stem cell biologists was told.

18 Oct 2007

Study identifies pathway required for normal reproductive development

Massachusetts General Hospital (MGH) clinical researchers, in collaboration with basic scientists from the University of California, Irvine (UC Irvine) have identified a new molecular pathway required for normal development of the reproductive, olfactory and circadian systems in both humans and mice.

17 Oct 2007