Giant cell reveals metabolic secrets
22:37 27-01-2012; source: www.sciencedaily.com
Chemical reactions within the cell produce intermediate and end products in the form of small molecules called metabolites. Using an approach called metabolomics, researchers have elucidated the localization and dynamics of 125 metabolites within a single giant cell of the freshwater alga Chara australis1. The team's findings provide important insights into the fundamental processes of cells in general.
How cholera bacterium gains a foothold in the gut
22:37 27-01-2012; source: www.sciencedaily.com
Biologists have made an important advance in our understanding of the way cholera attacks the body. The discovery could help scientists target treatments for the globally significant intestinal disease which kills more than 100,000 people every year.
Research on vitamins could lead to the design of novel drugs to combat malaria
22:37 27-01-2012; source: www.sciencedaily.com
New research could lead to the design of more effective drugs to combat malaria. The research will enable scientists to learn more about the nature of the enzymes required for vitamin biosynthesis by the malaria causing pathogen Plasmodium. Vitamins are essential nutrients required in small amounts, the lack of which leads to deficiencies. Many pathogenic microorganisms produce vitamins, and these biosynthetic pathways may provide suitable targets for development of new drugs.
New biodiversity map of Andes shows species in dire need of protection
21:37 27-01-2012; source: www.sciencedaily.com
The Andes-Amazon basin of Peru and Bolivia is one of the most biologically rich and rapidly changing areas of the world. A new study has used information collected over the last 100 years by explorers and from satellite images which reveals detailed patterns of species and ecosystems that occur only in this region. Worryingly, the study also finds that many of these unique species and ecosystems are lacking vital national level protection. Endemic species are restricted to a specific area and occur nowhere else. These species are especially vulnerable to climate and environmental changes because they require unique climates and soil conditions.
Silk from tasar silkworm used as scaffold for heart tissue
21:37 27-01-2012; source: www.sciencedaily.com
Damaged human heart muscle cannot be regenerated. Scar tissue grows in place of the damaged muscle cells. Scientists are seeking to restore complete cardiac function with the help of artificial cardiac tissue. They have succeeded in loading cardiac muscle cells onto a three-dimensional scaffold, created using the silk produced by a tropical silkworm.
Following genetic footprints out of Africa: First modern humans settled in Arabia
05:37 27-01-2012; source: www.sciencedaily.com
A new study, using genetic analysis to look for clues about human migration over sixty thousand years ago, suggests that the first modern humans settled in Arabia on their way from the Horn of Africa to the rest of the world.
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