How mothers adapt to the metabolic demands of nursing
Peer-Reviewed Publication
Updates every hour. Last Updated: 30-Jul-2025 18:11 ET (30-Jul-2025 22:11 GMT/UTC)
Nursing poses major metabolic demands on mothers, to which they respond by eating more and saving energy to sustain milk production. There are significant hormonal changes during lactation, but how they lead to metabolic adaptations in nursing mothers remained unclear. In this study, which appeared in Nature Metabolism, leading researchers at Baylor College of Medicine and Pennington Biomedical Research Center uncovered a mechanism that connects prolactin, estrogen, the brain and metabolic adaptations during lactation.
A seminal study from researchers at the Icahn School of Medicine at Mount Sinai and their collaborators in the United Kingdom, Belgium, Spain, the Netherlands, and Iceland has uncovered a new genetic cause of neurodevelopmental disorders (NDDs). The discovery offers both closure and hope to potentially thousands of families worldwide who have long been searching for answers. The study, published in the April 10 online issue of Nature Genetics [DOI: 10.1038/s41588-025-02159-5], reveals that mutations in a small, previously overlooked non-coding gene called RNU2-2 are responsible for relatively common NDD. Non-coding genes are genes that don’t produce proteins but may still play critical roles in regulating cell functions.
Various types of intergenerational support was differentially associated with older adults’ satisfaction, with significant disparities between living in a rural or urban area.
According to a study published by Nature Metabolism, marathon runners experience reversible changes in their brain myelin. These findings indicate that myelin (a substance that surrounds the neurons) exhibits behaviour that was previously unknown, and that it contributes towards the brain's energy metabolism when other sources of energy are running low. Understanding how myelin in the runners recovers quickly may provide clues for developing treatments for demyelinating diseases such as multiple sclerosis.
Risky driving by parents and other motorists who do the school run is putting children in danger, according to a study published in the peer-reviewed journal Traffic Injury Prevention.