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Popular Articles

First Testicular Cancer Risk Genes Found
A team led by scientists at The Institute of Cancer Research (ICR) compared the genes of 730 men who had developed testicular cancer with the genes of healthy men. They found many of the men who had suffered cancer shared common DNA variants on chromosomes 5, 6 and 12 that the healthy men did not have.

What Is Psychology? What Are The Branches Of Psychology?
Psychology is the science of the mind and behavior. The word "psychology" comes from the Greek word psyche meaning "breath, spirit, soul", and the Greek word logia meaning the study of something. According to Medilexicon"s medical dictionary, psychology is "The profession (clinical psychology), scholarly discipline (academic psychology), and science (research psychology) concerned with the behavior of humans and animals, and related mental and physiologic processes." Although psychology may also include the study of the mind and behavior of animals, in this article psychology refers mainly to humans.
News of the day
New Mechanism Fundamental To The Spread Of Invasive Yeast Infections Identified
A group of researchers led by Carnegie Mellon University Biological Sciences Professor Aaron Mitchell has identified a novel regulatory gene network that plays an important role in the spread of common, and sometimes deadly, yeast infections. The findings, which establish the role of Zap1 protein in the activation of genes that regulate the synthesis of biofilm matrix, will be published in the June 16, 2009, issue of PLoS Biology, a peer-reviewed open-access journal from the Public Library of Science.
Cardiovascular

Freshly Crushed Garlic Better For The Heart Than Processed

A new study reports what scientists term the first scientific evidence that freshly crushed garlic has more potent heart-healthy effects than dried garlic. Scheduled for the Aug. 12 issue of the Journal of Agricultural and Food Chemistry, it also challenges the widespread belief that most of garlic"s benefits are due to its rich array of antioxidants. Instead, garlic"s heart-healthy effects seem to result mainly from hydrogen sulfide, a chemical signaling substance that forms after garlic is cut or crushed and relaxes blood vessels when eaten. In the study, Dipak K. Das and colleagues point out that raw, crushed garlic generates hydrogen sulfide through a chemical reaction. Although best known as the stuff that gives rotten eggs their distinctive odor, hydrogen sulfide also acts as a chemical messenger in the body, relaxing blood vessels and allowing more blood to pass through. Processed and cooked garlic, however, loses its ability to generate hydrogen sulfide. The scientists gave freshly crushed garlic and processed garlic to two groups of lab rats, and then studied how well the animals" hearts recovered from simulated heart attacks. "Both crushed and processed garlic reduced damage from lack of oxygen, but the fresh garlic group had a significantly greater effect on restoring good blood flow in the aorta and increased pressure in the left ventricle of the heart," Das said. Journal of Agricultural and Food Chemistry


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