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Post-traumatic stress disorder (PTSD) and migraine often co-occur, but researchers knew relatively little about how or why this happens. A new study in Frontiers in Neuroscience is the first to investigate if the conditions have a common genetic basis. By studying identical twins, where one twin in each pair lives with PTSD or migraines and the other twin does not, the researchers found common genes that may play a role in both conditions. These genes may help to explain why the conditions co-occur, and could reveal new treatment targets for both.

Researchers at the University of Helsinki and the Beatson Institute for Cancer Research in Glasgow have discovered how mutated cells promote their chances to form cancer. Typically, the accumulation of harmful cells is prevented by active competition between multiple stem cells in intestinal glands, called crypts.

High running capacity is associated with health and longevity. However, whether high genetic running capacity promotes more efficient metabolism with aging is not known. A new study conducted in collaboration between the universities of Shanghai Jiao Tong University (China) and Jyväskylä (Finland) investigated the effects of genetic running capacity and aging on tissue metabolism. The study reveals that adipose tissue may have a key role in healthy aging.

While previous research early in the pandemic suggested that the vitamin D cuts the risk of contracting COVID-19, a new study from McGill University finds there is no genetic evidence that the vitamin works as a protective measure against the coronavirus.

The University of Oulu's Cardiology Research Group identified several rare genetic variants in victims of sudden death caused by hypertension- or obesity-related cardiac hypertrophy. The findings suggest that, in addition to lifestyle, genes may also play a role in hypertension- and obesity-related cardiac hypertrophy.

he chemical bisphenol F (found in plastics) can induce changes in a gene that is vital for neurological development. This discovery was made by researchers at the universities of Uppsala and Karlstad, Sweden. The mechanism could explain why exposure to this chemical during the fetal stage may be connected with a lower IQ at seven years of age—an association previously seen by the same research group. The study is published in the scientific journal Environment International.