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Pre-implantation genetic screening reduces both ongoing pregnancy and live birth rates in over 35s

Preimplantation genetic screening (PGS) does not increase ongoing pregnancy or live birth rates in women over 35 undergoing IVF. The technique's effectiveness has been called into question due to various limitations, including the potential for biopsy errors and chromosomal analysis biases.

SourceEuropean Society of Human Reproduction and Embryology·JournalNew England Journal of Medicine·DateJul 4, 2007

Bed nets for tackling malaria

Wide-scale communal use of insecticide-treated bed nets would provide considerable benefit to vulnerable groups, particularly adults and older children. This approach is supported by malaria transmission models suggesting a significant reduction in mosquito-borne disease transmission.

SourcePLOS·JournalPLOS Medicine·DateJul 2, 2007

JCI table of contents: June 14, 2007

Researchers found that TRAIL limits inflammation and brain cell death in bacterial meningitis by regulating the host immune response. In contrast, mice lacking TRAIL exhibited increased inflammation and brain cell death, which was reversed by administering recombinant TRAIL.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 14, 2007

Talking sex on the factory floor in China

Young women in urban China want more information on contraception but need private and anonymous access due to judgmental attitudes. A pilot workplace intervention showed promising results with popular information leaflets, but low uptake of free family planning services.

SourceBMC (BioMed Central)·JournalBMC Health Services Research·DateMay 30, 2007

'Bigger the baby, the better' axiom is incorrect

A recent study published in American Journal of Clinical Nutrition found that the relationship between birth weight and future heart disease risk is not as strong as previously thought. The research suggests that other risk factors, such as smoking and obesity, have a greater impact on heart health.

SourceResearch Australia·JournalAmerican Journal of Clinical Nutrition·DateMay 17, 2007

Exposure to mercury preservatives before birth is no higher in children with autism

A recent study published in American Journal of Medical Genetics Part A found no causal link between Rh immune globulin (preserved with thimerosal) exposure before birth and the development of autism. The study included over 200 mothers of children diagnosed with autism, revealing that Rh negative status and pregnancies with thimerosal...

SourceWiley·JournalAmerican Journal of Medical Genetics·DateMay 16, 2007

Multivitamins improve birth outcomes among children born to HIV-negative women

A study found that daily multivitamin supplements given to HIV-negative pregnant women in Tanzania significantly reduced the risks of low birth weight and a small-for-gestational age birth size. The results suggest that enhancing micronutrient status during pregnancy has significant benefits on maternal immunity and hemoglobin levels.

SourceHarvard T.H. Chan School of Public Health·JournalNew England Journal of Medicine·DateApr 4, 2007

Link between beef consumption during pregnancy and reduced sperm quality in sons

Research found that pregnant women who ate more than seven beef meals a week had sons with lower sperm concentrations and higher rates of sub-fertility. The study suggests a link between maternal beef consumption and reduced fertility in sons, potentially due to the presence of anabolic steroids and other xenobiotics in beef.

A safe folic acid boost from flour

Researchers find that consuming folic acid from fortified flour at current mandated US levels and double this amount is probably safe at average intakes. However, long-term surveillance is needed to assess potential safety implications of accumulated folic acid in the population.

SourceBMC (BioMed Central)·JournalBMC Public Health·DateMar 21, 2007

Eating ice cream may help women to conceive, but low-fat dairy foods may increase infertility risk

Researchers found that consuming whole fat milk and eating ice cream reduces the risk of anovulatory infertility in women trying to become pregnant. In contrast, a diet consisting of low-fat dairy products increases the risk by up to 85%. Women are advised to switch from low-fat to high-fat dairy foods to improve fertility.

Experimental vaccine given during pregnancy reduces stillbirths from common virus

Researchers developed an experimental vaccine that reduces stillbirths among rodents born to mothers infected with cytomegalovirus, a common virus causing mental retardation and hearing loss. The vaccine was found to greatly reduce the total amount of virus in mothers' blood and mortality rates among offspring.