Category Health/Medical

Scientists perform computational simulations for biological molecules detected in meteorites to clarify the origin of life on Earth. All biological amino acids on Earth appear exclusively in their left-handed form, but the reason underlying this observation is elusive. Recently, scientists from Japan uncovered new clues about the cosmic origin of this asymmetry. Based on the optical properties of amino acids found on the Murchison meteorite, they conducted physics-based simulations, revealing that the precursors to the biological amino acids may have determined the amino acid chirality during the early phase of galactic evolution.

If you look at your hands, you will notice that they are mirror images of each other...

Researchers at The University of Texas at El Paso have successfully mapped specific regions in the brain that are activated in association with changes in blood sugar—also known as glucose—providing fundamental location information that could ultimately lead to more targeted therapies for people who struggle with conditions like diabetes.

The landmark 13-year study, published in the Journal of Clinical Medicine, describes how the team used careful microscopic analys...

For the first time, researchers have shown that reduced oxygen intake, or “oxygen restriction,” is associated with longer lifespan in lab mice, highlighting its anti-aging potential. Robert Rogers of Massachusetts General Hospital in Boston, US, and colleagues present these findings in a study published May 23rd in the open access journal PLOS Biology.

Research efforts to extend healthy lifespan have identified a number of chemical compounds and other interventions that show promising effects in mammalian lab animals— for instance, the drug metformin or dietary restriction. Oxygen restriction has also been linked to longer lifespan in yeast, nematodes, and fruit flies. However, its effects in mammals have been unknown.

To explore the anti-aging...