NEW YORK (GenomeWeb Daily News) – Sequencing and subsequent protein analysis of the hookworm Necator americanus found that the parasite has undergone an expansion of proteins that modulate the immune system, according to a study published yesterday in Nature Genetics.

These proteins, the researchers led by the Washington University School of Medicine's Makedonka Mitreva noted, could be tapped as possible targets to treat hookworm infection.

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 Senator Lamar Alexander (R-Tenn.), who chairs the Senate health committee, will be retiring at the end of his term, Stat News reports.

UCSF researchers find that having two X chromosomes may contribute to women's longer lifespans, according to Discover's D-brief blog.

The Wall Street Journal reports on the US Centers for Disease Control and Prevention's use of genetic approaches to study foodborne illnesses.

In PNAS this week: immune cell profiling of wild baboons by social status, metabolomics profiling of esophageal tumors, and more.