NEW YORK (GenomeWeb) – A team of international researchers has found that differences in gene expression play a key role in determining a person's predisposition to obesity, and that epigenetic marks can alter the activity of genes related to weight control.

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While gene therapies may have high price tags, they could be cheaper than the cost of managing disease, according to MIT's Technology Review.

Researchers are looking for markers that indicate which cancer patients may respond to immunotherapies, the Associated Press writes.

In Nature this week: paternal age associated with de novo mutations in children, and more.

Nature News writes that researchers are still wrangling over the role of the p-value.