Category Health/Medical

A new study suggests that unrepaired DNA damage can increase the speed of aging. Every day, our bodies face a bombardment of UV rays, ozone, cigarette smoke, industrial chemicals and other hazards.

This exposure can lead to free-rad...

Biologists at the Universities of Bath and Vienna have discovered 71 new ‘imprinted’ genes in the mouse genome, a finding that takes them a step closer to unravelling some of the mysteries of epigenetics — an area of science that describes how genes are switched on (and off) in different cells, at different stages in development and adulthood.

To understand the importance of imprinted genes to inherit...

It could be a milestone on the path to detecting life on other planets: Scientists detect a key molecular property of all living organisms from a helicopter flying several kilometers above ground. The measurement technology could also open up opportunities for remote sensing of the Earth.

Left hands and right hands are almost perfect mirror images of each other. But whatever way they are twisted and turned, they cannot be superimposed onto each other. This is why the left glove simply won’t fit the right hand as well as it fits the left. In science, this property is referred to as chirality.

Just like hands are chiral, molecules can be chiral, ...

A research team from Los Alamos National Laboratory and Purdue University have developed bio-inks for biosensors that could help localize critical regions in tissues and organs during surgical $operations.

“The ink used in the biosensors is biocompatible and provides a user-friendly design with excellent workable time frames of more than one day,” said Kwan-Soo Lee, of Los Alamos’ Chemical Diagnostics and Engineering group.

The new biosensors allow for simultaneous recording and imaging of tissues and organs during surg...