Reproduction News and Research

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Stem cells from human testes can change into other body tissues

Scientists at the Stanford University School of Medicine and at UC-San Francisco have succeeded in isolating stem cells from human testes.

5 Jan 2009

Researchers identify clockwork that drives a powerful virus nanomotor

Peering at structures only atoms across, researchers have identified the clockwork that drives a powerful virus nanomotor.

30 Dec 2008

Human Pheromone Sciences files patent for mood enhancing compound derived from sea coral

Human Pheromone Sciences, Inc. has announced that it has filed a Comprehensive Patent Application with the U.S. Patent and Trademark Office for the use of an innovative and previously undeveloped compound with its origin in sea coral, which has significant emotional impacts on both men and women, enhancing feelings of positive social relationships, personal well-being and social attraction.

17 Dec 2008

Attitudes towards assisted reproduction and preimplantation genetic diagnosis

According to an international survey by the BBVA Foundation conducted this year, citizens in advanced societies view assisted reproduction techniques in general and in vitro fertilization in particular as firmly acceptable alternatives for people with fertility problems (over 7 points on an acceptance scale from 0 to 10 in twelve of the fifteen survey countries).

17 Dec 2008

Good news for young male cancer patients

"Young men undergoing treatment for cancer often want to know how the disease and its treatment affect their chances of fathering healthy children. Our large-scale study shows that there is a slightly higher risk of deformities, but the actual risk of having a child with deformities is nevertheless extremely low. I think this is good news!"

14 Dec 2008

Researchers visualize three-dimensional structure of protein, Mcm10

For the first time, structural biologists have managed to obtain the detailed three-dimensional structure of one of the proteins that form the core of the complex molecular machine, called the replisome, that plant and animal cells assemble to copy their DNA as the first step in cell reproduction.

10 Dec 2008

Aggression linked to status and sex

Have you ever wondered why it seems like the littlest things make people angry? Why a glance at the wrong person or a spilled glass of water can lead to a fist fight or worse? University of Minnesota researcher Vladas Griskevicius has three words to explain why people may be evolutionarily inclined to make a mountain out of molehill: aggression, status and sex.

8 Dec 2008

C. elegans worms may hold key to new treatments for obesity in humans

A previously unknown mutation discovered in a common roundworm holds the promise of new treatments for obesity in humans, McGill University researchers say.

8 Dec 2008

Light cigarettes may be more toxic than traditional cigarettes

Typically, tobacco companies market harm-reduction cigarettes as being safer than traditional "full-flavored" brands, leading many smokers to conclude that the use of harm-reduction brands lowers their exposure to toxicants.

8 Dec 2008

Vitamin D enhances placental innate immunity

In a paper available at the online site of the journal Biology of Reproduction, a team of UCLA researchers reports for the first time that vitamin D induces immune responses in placental tissues by stimulating production of the antimicrobial protein cathelicidin.

1 Dec 2008

Chemical used in antifouling paints may promote obesity

Tributyltin, a ubiquitous pollutant that has a potent effect on gene activity, could be promoting obesity, according to an article in the December issue of BioScience.

1 Dec 2008

Seychelles flies could reveal evolutionary step to live birth

A species of fruit fly from the Seychelles Islands often lays larvae instead of eggs, UC San Diego biologists have discovered.

24 Nov 2008

Sexual reproduction and evolution

The utility of sex, according to an intriguing new theory of evolutionary biology, may be its ability to promote genes that play well with many other partners rather than those that shine with just one specific set of genes.

24 Nov 2008

Scientists discover an important new layer of regulation in the cell division cycle

A Florida State University College of Medicine research team led by Yanchang Wang has discovered an important new layer of regulation in the cell division cycle, which could lead to a greater understanding of the way cancer begins.

21 Nov 2008

Doctors hesitant to discuss options to preserve fertility with cancer patients

Although some teenagers and young adults become infertile following cancer treatment, physicians are hesitant to discuss options to preserve fertility with patients, according to a new Florida study.

18 Nov 2008

Researchers identify regions of female brain that respond more strongly to masculine faces

Scientists have long known that women's preferences for masculine men change throughout their menstrual cycles.

12 Nov 2008

A virus-infecting virus

Using the Genome Sequencer System from 454 Life Sciences, a Roche company, French scientists have identified a small virus that can actually be parasitic to a larger one.

7 Nov 2008

By imaging live cells, researchers show how hepatitis C replicates

The hepatitis C virus is a prolific replicator, able to produce up to a trillion particles per day in an infected person by hijacking liver cells in which to build up its viral replication machinery.

30 Oct 2008

Discovery of new gene responsible for puberty disorders

A new gene responsible for some puberty disorders has been identified by Medical College of Georgia researchers.

27 Oct 2008

Depressed pregnant women have twice the risk of preterm delivery

Depressed pregnant women have twice the risk of preterm delivery than pregnant women with no symptoms of depression, according to a new study by the Kaiser Permanente Division of Research. The study is published online in the Oxford University Press's journal Human Reproduction on behalf of the European Society of Human Reproduction and Embryology.

23 Oct 2008