How Gut Microbes Help Mend Damaged Muscles

Now, in a surprising new discovery, Harvard Medical School researchers have found that a class of regulatory T cells (Tregs) made in the gut play a role in repairing injured muscles and mending damaged livers.

In an even more unexpected twist, the researchers found that gut microbes fuel the production of Tregs, which act as immune healers that go on patrol around the body and respond to distress signals from distant sites of injury.

Kids with Cerebral Palsy Have More Small Muscle Fibers, More Stem Cells in Contractured Muscles

Article title: Resident muscle stem myogenic characteristics in postnatal muscle growth impairments in children with cerebral palsy Authors: Ryan E. Kahn, Timothy Krater, Jill E. Larson, Marysol Encarnacion, Tasos Karakostas, Neeraj M. Patel, Vineeta T Swaroop, Sudarshan Dayanidhi From the…

Is weakness the new smoking? Muscle strength tied to biological age, study shows

Muscle weakness marked by grip strength is associated with accelerated biological age, a new study suggests. Results were found using “age acceleration clocks” based on DNA methylation, a process that provides a molecular biomarker and estimator of the pace of aging. Researchers say this suggests potential to adopt use of grip strength as a way to screen individuals for future risk of functional decline, chronic disease and early mortality.

Stress during Pregnancy May Negatively Affect Baby’s Muscles

Research in sheep suggests that high levels of a stress hormone during pregnancy may alter gene expression in multiple muscle groups of offspring. These shifts may affect heart, breathing and skeletal muscle function, and could potentially increase risks of inflammation and infection. The study is published ahead of print in Physiological Genomics.