In the News
UCSF-led Study Suggests A Way Psychological Stress Gets 'Under The Ski
Increasing scientific evidence suggests that prolonged psychological stress takes its toll on the body, but the exact mechanisms by which stress influences disease processes have remained elusive. Now, scientists report that psychological stress may exact its toll, at least in part, by affecting molecules believed to play a key role in cellular aging and, possibly, disease development. Even Low Levels Of Weekly Exercise Drive Down Blood Pressure
Even low levels of weekly exercise drive down blood pressure and boost overall fitness, suggests a small new study. To stave off ill health, adults are currently recommended to indulge in 30 minutes of moderately strenuous exercise on at least five days of the week. 'Purple Berries' Rank High In Antioxidants, USDA Study Says
You may not be familiar with "purple berries,"but new research by a group of USDA scientists suggest they are among the highest fruits for antioxidants, even higher than blueberries and cranberries. First Large-scale HIV Vaccine Trial In South Africa Opens
A large-scale clinical trial of a candidate HIV vaccine -- which previously showed promise in smaller studies in the United States and elsewhere -- has now opened in South Africa. The study plans to enroll up to 3,000 HIV-negative men and women, making it the largest African HIV vaccine trial to date. New Route For Heredity Bypasses DNA
Scientists have uncovered a new biological mechanism that could provide a clearer window into a cell's inner workings. What's more, this mechanism could represent an "epigenetic"pathway -- a route that bypasses an organism's normal DNA genetic program -- for so-called Lamarckian evolution, enabling an organism to pass on to its offspring characteristics acquired during its lifetime to improve their chances for survival. Mother-of-pearl In Highest Resolution
Researchers from the Max Planck Institute of Colloids and Interfaces, and the German Federal Institute for Materals Research and Testing (BAM), have discovered small new details in the structure of mother-of-pearl. Thalassemia: Genetic Blood Disorder Expected To Double In Next Few Dec
Children's Hospital Oakland, a world recognized center for treatment and research of thalassemia, has formed an international network treating patients throughout the world. Thalassemia is the world's most common genetic blood disorder and it is rapidly increasing. Seven percent of the world's population are carriers, and 400,000 affected babies are born each year. The World Health Organization (WHO) predicts a doubling of these statistics within the next few decades. When Do Mosquitoes Prefer A Blood Banquet, Or A Sugar Feast? Three Ge
Entomologists have isolated three key genes that determine when female mosquitoes feed on blood and when they decide to switch to an all-sugar diet to fatten up for the winter. David Denlinger, professor of entomology at Ohio State University, hopes this discovery will lead scientists to other genes that help the mosquitoes survive cold weather -- in particular, those genes related to how insects handle the West Nile Virus when they enter a kind of hibernation. Gene Changes Linked To Deficient Immune Suppression In Multiple Sclero
Oregon Health &Science University researchers have found that multiple sclerosis patients have lower expression of the FOXP3 gene found in a subset of T-cells that may regulate defense against MS and other autoimmune diseases. They say when FOXP3 is reduced due to abnormalities in expression, the suppressive activity of regulatory T-cells also plummets. But in a separate study, a T-cell receptor peptide vaccine called NeuroVax was shown to increase FOXP3 expression among MS patients. Lost Indiana: In Grave Condition: John Chapman (AKA Johnny Appleseed)
Background about the tale of Johnny Appleseed, "a poor hobo who wandered all over the midwest planting apple trees as he went,"and John Chapman, the "wealthy businessman"who inspired the tale. Includes links to the Harper's Monthly story from 1871 that inspired the Johnny Appleseed myth, and to other related sites. From a website that provides information about historical figures who are buried in Indiana.
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