News tagged with human genetics

Memory-related brain network shrinks with aging

Brain regions associated with memory shrink as adults age, and this size decrease is more pronounced in those who go on to develop neurodegenerative disease, reports a new study published Sept. 18 in the ...

Sep 20, 2013
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Lifestyle influences metabolism via DNA methylation

An unhealthy lifestyle leaves traces in the DNA. These may have specific effects on metabolism, causing organ damage or disease. Scientists of Helmholtz Zentrum München have now identified 28 DNA alterations associated with ...

Sep 20, 2013
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Researchers tease apart workings of a common gene

Researchers at Weill Cornell Medical College have discovered why a tiny alteration in a brain gene, found in 20 percent of the population, contributes to the risk for anxiety, depression and memory loss.

Sep 19, 2013
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Everyone 'is now polluted'

Virtually every human being on Earth can now be considered physiologically and biochemically polluted by human-made chemicals, a leading medical doctor will tell CleanUp 2013 in Melbourne today.

Sep 16, 2013
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Molecular structure reveals how HIV infects cells

In a long-awaited finding, a team of Chinese and US scientists has determined the high-resolution atomic structure of a cell-surface receptor that most strains of HIV use to get into human immune cells. The ...

Sep 12, 2013
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Evolution pushes on as European men grow taller

A new study shows that the average height of European men has increased by nearly 11cm since the 1870s. Museum human origins expert Prof Chris Stringer explains why height fluctuates over time.

Sep 06, 2013
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Wide range of differences, mostly unseen, among humans

No two human beings are the same. Although we all possess the same genes, our genetic code varies in many places. And since genes provide the blueprint for all proteins, these variants usually result in numerous differences ...

Sep 05, 2013
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