NEW YORK (GenomeWeb News) – The National Institute on Drug Abuse plans to fund new research projects that aim to discover more about the changes that chronic exposure to drugs cause in the brain, including efforts focused on changes at the genetic, molecular, and cellular levels.

NIDA also plans to support efforts to understand how pharmacological, behavioral, and other therapeutic interventions affect the brain, and how the brain protects itself from the effects of abused drugs.

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In PLOS this week: phylogenetic study of hepatitis E viruses in Swedish moose, recombination sites in the honeybee genome, and more.

Differences in DNA methylation could be used to distinguish between DNA samples obtained from identical twins, researchers say.

A retrovirus that's been integrated into the human genome appears to have a role in embryonic development, researchers report.

A report from MIT identifies areas of scientific research where declining research support is hindering needed advances.