bilimselkonular science
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Moderate alcohol intake is associated with higher levels of omega-3 fatty acids in plasma and red blood cells. This is the major finding of the European study IMMIDIET that will be published in the January issue of the American Journal of Clinical Nutrition.
The study suggests that wine does better than other alcoholic drinks. This effect [...]
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A very small fraction of our genetic material–about 2%– performs the crucial task scientists once thought was the sole purpose of the genome: to serve as a blueprint for the production of proteins, the molecules that make cells work and sustain life. This 2% of human DNA is converted into intermediary molecules called RNAs, which [...]
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The basic molecules that make up all living things have a predetermined chirality or "handedness," similar to the way people are right- or left-handed. This chirality has a profound influence on the chemistry and molecular interactions of living organisms. The inception of chirality from the elementary building blocks of matter is one of the great [...]
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Researchers in one of the external groups of the Instituto Gulbenkian de Ciência (IGC), in Portugal, have discovered a novel mechanism which regulates the process whereby new blood vessels are formed and wounds heal, including chronic wounds, such as those found in diabetic patients and those suffering from morbid obesity.
These findings, by Sérgio Dias and [...]
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Researchers have uncovered what may be a universal cause of aging, one that applies to both single cell organisms such as yeast and multicellular organisms, including mammals. This is the first time that such an evolutionarily conserved aging mechanism has been identified between such diverse organisms.
The mechanism probably dates back more than one billion years. [...]
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If superconductors could be designed to operate at temperatures closer to room temperature, the results would be revolutionary. However, the cost of cooling materials to such extremely low temperatures currently limits the practicality of superconductors. Superconductors are extremely important materials because they hold promise for carrying electricity from one place to another without current loss [...]
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A series of genetic clues led a team of Boston University biomedical engineers to uncover exactly how certain antibiotics kill bacteria. The findings could help rejuvenate the efficacy of older antibiotics and reveal new antibiotic targets within bacterial cells.
"The research speaks to new insights into how current antibiotics work and how those insights can point [...]
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Researchers at the University of California, San Diego School of Medicine, led by Ajit Varki, M.D., have shown a new mechanism for how human consumption of red meat and milk products could contribute to the increased risk of cancerous tumors.
Their findings, which suggest that inflammation resulting from a molecule introduced through consumption of these foods [...]
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Stem cells don’t just become a part of the liver or the brain in a flash; it takes a complex molecular choreography and requires that specific genes be switched on and off at specific times. Some of these genes are regulated through a process by which proteins in the cell nucleus, called histones, are chemically [...]
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Researchers at the University of Southern California (USC) have identified a novel mechanism in the regulation and differentiation of neural stem cells.
Researchers found that the protein receptor Ryk has a key role in the differentiation of neural stem cells, and demonstrated a signaling mechanism that regulates neuronal differentiation as stem cells begin to grow into [...]
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