Sterility
SEATTLE -- Biological species are often defined on the basis of reproductive isolation.
An outbreak of bloodstream infections appears to have been caused by the contamination of pre-filled heparin and saline syringes made by a single company, according to a report in the October 12 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.
Washington, D.C. - October 5, 2009 -- Today, The Lewin Group, a national health care consulting firm, issued recommendations on ways to overcome the barriers that have obstructed lupus drug development resulting in no new drug approval for this disease in more than 50 years -- since the Eisenhower Administration.
LEBANON, N.H. -- A major new trial recently published in the journal Fertility and Sterility shows that for couples beginning infertility treatments, an accelerated path to in-vitro fertilization (IVF) can offer a shorter time to pregnancy, cost savings of nearly $10,000, and a lowered risk of multiple births.
Low antioxidant intake is associated with low reproductive capacity in semen. This is the finding of a new study carried out in two infertility centres in Alicante and Murcia, and which has been published online in the journal Fertility and Sterility.
A new, Queen's-led study shows that plants growing in harsh northern climates are losing the ability to reproduce sexually, an evolutionary phenomenon similar to the loss of sight in cave-dwelling fish. ''Our genetic analysis shows that northern plant populations acquire mutations that disable sex itself, a trait central to the biology of almost all higher organisms,'' says Queen's biologist Christopher Eckert, co-author of the study and an expert in reproductive evolution.
Restoration of fertility to the now-sterile garlic plant has been accomplished by Israeli researchers, thus opening the way to wide-ranging scientific research that could lead to improved yields and quality. Garlic is one of the most popular vegetable condiments in the world. Its origins are in Central Asia, where in the past, several fertile or semi-fertile garlic plants were identified. However, the cultivated, commercial plants we know today are totally sterile and are propagated only asexually. The reasons for this as well as the means to restore the plants' fertility have remained unknown.
