Emily S. Jungheim, MD, an associate professor of obstetrics and gynecology at Washington University School of Medicine in St. Louis, examines oocytes retrieved during an in vitro fertilization (IVF) procedure. Jungheim treats patients at the university’s Fertility and Reproductive Medicine Center. Credit: Washington University Women who pursue in vitro fertilization (IVF) to become pregnant are

People screened for blood-lead level at age 11 and IQ-tested in childhood and at age 38, reveal an association between childhood lead exposures and a decline in IQ. Higher doses led to greater losses, including having occupational standing lower than their parents. Credit: Duke University from JAMA, 2017;317(12):1-8; doi:10.1001/jama.2017.1712 A long-term study of more than

The maturation of fibres of a brain structure called the arcuate fascicle (green) between the ages of three and four years establishes a connection between two critical brain regions: A region at the back of the temporal lobe (brown) that supports adults thinking about others and their thoughts and a region in the frontal lobe

Maltreatment can affect a child’s psychological development. New research indicates that the stress of abuse can impact the physical growth and maturation of adolescents as well. Credit: © Roman Bodnarchuk / Fotolia While it has long been known that maltreatment can affect a child’s psychological development, new Penn State research indicates that the stress of

This image shows restored presence of proteins indicating myelin reformation (shown in red) in the lumbar spinal cord of a mouse treated with miR-219 mimic after injury to its central nervous system. Researchers report March 27 in Developmental Cell treatment with the micro-RNA partially repaired damaged nerves and restored limb function in mice. Credit: Cincinnati

Red wine (stock image). Credit: © anya_stogova / Fotolia Moderate drinking is associated with a lower risk of several, but not all, cardiovascular diseases, finds a large study of UK adults published by The BMJ (March 22). The finding that moderate drinking is not universally associated with a lower risk of all cardiovascular conditions suggests

Complete capsid of bacteriophage P22 generated with validated atomic models that were derived from a high-resolution cryo-electron microscopy density map. Credit: C. Hryc and the Chiu Lab, Baylor College of Medicine Cryo-electron microscopy (cryo-EM) — which enables the visualization of viruses, proteins, and other biological structures at the molecular level — is a critical tool

Disease spread can vary depending on the age at which individuals are exposed to infection, and the age at which females in the group become mothers. Credit: © Barabas Attila / Fotolia How a disease outbreak affects a group of animals depends on the breakdown of ages in the population, research has shown. The findings

This photograph shows two fast-aging mice. The mouse on the left was treated with a FOXO4 peptide, which targets senescent cells and leads to hair regrowth in ten days. The mouse on the right was not treated with the peptide. Credit: Peter L.J. de Keizer Regular infusions of a peptide that can selectively seek out

UChicago graduate student David Grossnickle explains key features that evolved to facilitate jaw yaw, or side-to-side movement that cows do, that allowed early mammals to expand their diet. Credit: © Supertrooper / Fotolia You probably haven’t given much thought to how you chew, but the jaw structure and mechanics of almost all modern mammals may

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