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For women in their 30s and beyond, the probability of a pregnancy that results in a miscarriage or a Down syndrome pregnancy is staggering with the risk increasing to 1 in 3 by the time a woman reaches her early 40s due to the "maternal age effect," the high incidence of mistakes in chromosome segregation that occur during the cell division process of meiosis, which gives rise to the egg. Now, in a study just published online in the PNAS (Proceedings of the National Academy of Sciences), Dartmouth researchers have provided the first evidence in an intact living organism that an increase of reactive oxygen species (ROS) within oocytes (the cells that undergo meiosis to form eggs) causes a significant increase in meiotic chromosome segregation errors.
Original Article: How age-related genetic anomalies contribute to the maternal age effectNEXT ARTICLE
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...
Obstetrics and gynaecology
Fertility Menopause Obstetrics & Gynaecology Osteoporosis Women's Health Obstetrics and gynaecology comprises the care of the pregnant woman, her unborn child and the management of diseases specific to women. Most consultant...
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...