Reproduction News and Research

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Humans more prone to cancer than chimpanzees

Chimpanzees and humans share a common ancestor, and even today 99 percent of the two species' DNA is identical. But since the paths of man and chimp diverged 5 million years ago, that one percent of genetic difference appears to have changed humans in an unexpected way: It could have made people more prone to cancer.

15 May 2005

Month/season of birth can effect the length of a woman's fertile life

Research by Italian experts on the menopause has found that that the month and the season in which a woman is born influence the age at which she reaches menopause.

12 May 2005

Tumors of the pituitary gland are more common than thought

A recent study found that tumors of the pituitary gland are more common than many health care professionals realize, with national prevalence rates averaging 16.7 percent. To neurosurgeon Dr. Gail Rosseau, this isn't surprising.

1 May 2005

How Ebola virus infects cells - discovery

Ebola virus reproduction in laboratory-grown cells is severely hampered by enzyme-inhibiting chemicals, and these chemicals deserve further study as possible treatments for Ebola virus infections in humans, report scientists supported in part by the National Institute of Allergy and Infectious Diseases (NIAID).

23 Apr 2005

Ancient protein could be critical to stopping the uncontrolled division of tumor cells that cause cancer

Molecular Biology and Microbiology professor Mark Muller has found that the protein, called MKRN1, promotes the destruction of an enzyme called telomerase that enables rapid duplication of cells. While researchers have known for years that healthy cells repress telomerase, they haven't understood why.

19 Apr 2005

Women who smoke cut 10 years off their fertile life

More than a third of British women in their 20s smoke, and the rate, despite aggressive campaigns against smoking, has only decreased slightly in the past five years. One in seven couples experience problems conceiving, and, in cases involving female infertility, no specific cause can be found in 20 per cent of cases.

7 Apr 2005

Genetic testing could bolster radiotherapy's effectiveness against cancer

Obtaining a genetic picture of how a tumor will react to the many treatment techniques available could help doctors prescribe therapies customized for individual cancer patients' needs, suggests a Purdue University research team.

5 Apr 2005

Chronic inflammation caused by too little stomach acid leads to gastric cancer

When it comes to gastric cancer, too little stomach acid can be just as dangerous as too much, according to scientists at the University of Michigan Medical School. Both extremes create inflammatory changes in the stomach lining and a condition called chronic atrophic gastritis, which over time often leads to cancer.

4 Apr 2005

New chemicals to inhibit HIV infection

In corporation with peers from the Mount Sinai School of Medicine, New York University, researchers from the University of Science and Technology of China (USTC), a CAS affiliate, have come up with new chemical inhibitors against HIV reproduction, marking a significant progress in the development of anti-AIDS drugs based on natural host resistance.

4 Apr 2005

Latest findings in male reproduction research

The XVIII North American Testis Workshop, chaired by Population Council senior scientist Matthew Hardy, will be held 30 March - 2 April in Seattle, Washington. Participants will discuss findings from the large body of recent research on male reproduction.

28 Mar 2005

Public concerns show need for independent fertility regulation as great as ever

The public concerns and future developments which underpin the need for ongoing independent regulation of fertility treatment and research were spelt out in a keynote speech by Angela McNab, Chief Executive of the Human Fertilisation and Embryology Authority, at the HFEA’s annual conference this week (15 March).

16 Mar 2005

Innovative computer modeling technique predicts how protein molecule behavior in response to environmental conditions

In a development that could have great significance for efforts to understand how the basic molecular machinery of life works, researchers at the University of Texas Medical Branch at Galveston (UTMB) have successfully applied an innovative computer modeling technique to predicting how protein molecules will behave in response to different environmental conditions.

15 Mar 2005

Most infertile women want to choose the sex of their child

Many women being treated for infertility would choose the sex of their next child if given the option and those who were childless would choose baby girls and boys in approximately equal numbers.

14 Mar 2005

Significant number of women being treated for infertility would choose the sex of their next child

A new survey says a significant number of women being treated for infertility would choose the sex of their next child if given the option -- and those as yet childless would choose baby girls and boys in approximately equal numbers.

14 Mar 2005

Protein circulating in the blood delivers selenium to germ cells, enabling normal development of sperm

A paper to be published in the journal Biology of Reproduction offers evidence that a protein circulating in the blood of mammals delivers the dietary micronutrient selenium to germ cells, enabling these cells to develop into normal sperm.

7 Mar 2005

Way to detect early signs of testicular cancer

Danish researchers have discovered a way to detect early signs of testicular cancer before it has started to spread. Their findings are the first step towards developing a simple screening test for men at risk of the disease.

2 Mar 2005

Genetic manipulation cuts nerve damage, boosts life span

A novel genetic manipulation significantly extends the life spans of flies by reducing the amount of wear and tear suffered by nerve cells in adults, according to new work published in Cell Metabolism. The findings support the idea that therapies designed to protect the adult nervous system by curbing the production of damaging free radicals might effectively increase longevity in other animals, including humans, the researchers said.

15 Feb 2005

US rates of early death and disability from sexual behaviour triple those of other wealthy nations

The rates of premature death and disability attributable to sexual behaviour in the United States are triple those of other wealthy nations, suggests research in Sexually Transmitted Infections.

26 Jan 2005

Increasing trend in society to be more open about the use of sperm donors

Two studies to be published tomorrow (Thursday 27 January) in Europe's leading reproductive medicine journal, Human Reproduction provide a generally optimistic picture about attitudes towards the increasing trend in society to be more open about the use of sperm donors.

26 Jan 2005

Researchers have uncovered evidence of sexual reproduction in a single-celled organism long thought to reproduce asexually

The finding by John M. Logsdon, Jr., assistant professor in the UI College of Liberal Arts and Sciences Department of Biological Sciences and the Roy J. Carver Center for Comparative Genomics, and colleagues from the UI and Roanoke College (Virginia), provides the first clear evidence that meiosis arose very early in eukaryotic evolution, bringing science one step closer to understanding the mystery of sexual evolution.

26 Jan 2005