NEW YORK (GenomeWeb News) – Late-onset Alzheimer's disease is linked to potentially targetable changes to specific pathways and processes in the brain, according to a new molecular network-based analysis of the condition.

An international team led by investigators in the US and Iceland did array-based gene expression profiling on more than 1,600 post-mortem brain samples from 549 individuals with or without late-onset Alzheimer's disease.

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In PNAS this week: genomic study of group B Streptococcus evolution, selection on the X chromosome in great apes, and more.

Changing the fat and fiber content of people's diets affects their gut microbiome, metabolome, and colon cancer risk, researchers say.

Broken links are found throughout academic publications, and some services are trying to combat such link decay.

Nick Stockton at Wired says that a pause in studying genome-editing tools should be used to find a path forward.