Neurobiologists have identified calcium in the cell nucleus to be a cellular "switch" responsible for the formation of long-term memory. Using the fruit fly as a model, scientists investigate how the brain learns. The researchers wanted to know
Researchers have found that an excess number of brain cells that produce the chemical histamine may cause the loss of other cells that produce hypocretin, the neuropeptide that keeps us awake, elevates mood and alertness, and, by their absence, explains t
By European Society of Human Reproduction and Embryology
A new study based on a 20-year follow-up of one of the world's largest study cohorts, suggests that exposure to several factors in utero and in early life may lead to reduced semen parameters in adulthood and potentially to a decline in male fertility.
Milk from organic farms has a lower concentration of elements like zinc, iodine and selenium than milk produced by conventional farming methods. The discrepancy is due to the absence of mineral substances in the diets of the cows reared. According to rese
Cancer scientists have discovered that a little-described gene known as FAM190A plays a subtle but critical role in regulating the normal cell division process known as mitosis, and the scientists’ research suggests that mutations in the gene ma
By Seattle Biomedical Research Institute (Seattle BioMed)
Researchers have taken the first steps toward a complete representation of the regulatory network for Mycobacterium tuberculosis. This map will yield unique insights into how the bacteria survive in the host.
By Helmholtz Association of German Research Centres
The genetic mutation leading to the developmental disorder "CHARGE syndrome" blocks the maturation of neural stem cells. This finding explains why CHARGE patients suffer from mental retardation and learning disabilities. Strikingly, exercise by
Scientists have identified the molecular signals that direct the formation of arteries during embryonic development. In so doing, they illustrate how even the most complex of biological systems can be directed by the most subtle shifts in molecular signal
Aspirin has been widely used for more than 50 years as a common, inexpensive blood thinner for patients with heart disease and stroke, but doctors have little understanding of how it works and why some people benefit and others don't.
Physicians say they are encouraged by early results in three patients of their new treatment for gastroparesis, a condition marked by the failure of the stomach to properly empty its contents into the small intestine. They describe how the placement of a
By University of North Carolina School of Medicine
For patients facing treatment for cancer, it is essential to understand how their symptoms will be affected. Symptoms like pain, fatigue, or nausea can result from the cancer, or from treatment side effects. The best way to collect this information is fro
Using highly sensitive fluorescent probes, a team of scientists has captured the never-before-seen structural dynamics of an important protein channel inside the cell's primary power plant -- the mitochondrion.
Researchers have figured out how some RNA molecules take advantage of their position within the three-dimensional mishmash of genomic material to home in on targets.
Researchers are helping demystify an important class of proteins associated with disease, a discovery that could lead to better treatments for cancer, cystic fibrosis and many other conditions.
