Reproduction News and Research

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Embryos that are selected out as abnormal can undergo chromosomal modifications

Ms Tsvia Frumkin, from the Racine IVF unit, LIS Maternity Hospital, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel, will tell the conference that her team's findings meant that the results of preimplantation genetic screening (PGS) for chromosomal abnormalities were not always reliable and should be interpreted with caution.

19 Jun 2007

Health of babies not affected by embryo screening

New research has shown that babies born after pre-implantation genetic diagnosis (PGD) are as healthy as those born after conventional IVF treatment.

18 Jun 2007

Herpes virus hijacks DNA repair process

Scientists probing the details of viral infection have discovered an intriguing surprise: in mice, herpes viruses hijack their host cells' tools for fixing DNA damage and use those tools to enhance their own reproduction.

17 Jun 2007

New understanding of anti-malarial drug resistance

Researchers at Georgetown University Medical Center say they are moving closer to understanding why the most lethal form of human malaria has become resistant to drug treatment in the past three decades.

8 Jun 2007

New drugs to fight colon and breast cancer

A study on epithelial cell lines has allowed for the development of six new drugs to fight colon and breast cancer more effectively than other currently used drugs.

3 Jun 2007

Double-standard exists in the way that men and women donors are valued by the fertility industry

When Sociologist Rene Almeling decided to look into the operations of U.S. sperm banks and egg agencies, the UCLA Ph.D. candidate in sociology thought she knew what she would find.

24 May 2007

Sheep offer model for undernourishment in pregnant teen girls

Two papers selected for publication in the August 2007 issue of Biology of Reproduction demonstrate that adolescent female sheep that become pregnant before they have achieved their full growth may not be able to supply enough nourishment for their fetuses to develop without physical deficits.

24 May 2007

Conference looks at reproductive choices, infant feeding and teenage parenthood

Child protection, reproductive choices, infant feeding and teenage parenthood (including planned teenage pregnancy and positive experiences of teenage motherhood) are among the topics to be discussed at an international conference on childrearing in the age of ‘intensive parenting’.

15 May 2007

Female reproductive function is influenced by childhood environment

This suggests there is a critical window of time from about 0-8 years of age that determines the rate at which girls physically mature and how high their reproductive hormone levels reach as adults.

15 May 2007

Opossum DNA provides new insight into natural selection

Study of the DNA of a South American marsupial called the opossum has revealed that a gene's location influences whether or not it is likely to gather changes that could lead to disease.

10 May 2007

Cell-derived scaffold reproduction of cartilage tissue

A new study examines the use of tissue-engineered scaffolding made of cartilage cells, which have a limited ability to heal naturally, to replace defective cartilage tissue.

10 May 2007

Treating ticks with antibiotics inhibits their reproduction

Bacteria that may provide ticks with essential nutrients they can't get from their meals of blood could be a key to controlling ticks and the diseases they carry, a new study published in the PLoS ONE shows.

4 May 2007

Diabetes damages DNA in men's sperm and may affect fertility

Scientists have found that sperm from diabetic men have greater levels of DNA damage than sperm from men who do not have the disease.

4 May 2007

Wrapping version of Gleevec fights drug-resistant cancer

A new study highlighted on the cover of this week's issue of Cancer Research finds that the anti-cancer drug Gleevec? is far more effective against a drug-resistant strain of cancer when the drug wraps the target with a molecular bandage that seals out water from a critical area.

2 May 2007

Unicellular microRNA discovery

In the May 15th issue of Genes & Development, an international collaboration of researchers, led by Dr. Yijun Qi (National Institute of Biological Sciences, China), report on their discovery of microRNAs in the unicellular green alga, Chlamydomonas reinhardtii.

30 Apr 2007

The convergence of embryonic and cancer signaling pathways: role in tumor cell plasticity

In earlier work, Northwestern University scientist Mary J.C. Hendrix and colleagues discovered that aggressive melanoma cells (but not normal skin cells nor less aggressive melanoma cells) contain specific proteins similar to those found in embryonic stem cells.

30 Apr 2007