Medical research

Enzyme that breaks down amino acids may promote aging

Permanently arrested cell growth is known as "cellular senescence", and the accumulation of senescent cells may be one cause of aging in our bodies. Japanese researchers have discovered that a certain enzyme in our bodies ...

Genetics

Function of mysterious RNAs may often lie in their genes

A new genetic clue discovered by a team co-led by a researcher at the Perelman School of Medicine at the University of Pennsylvania is shedding light on the functions of the mysterious "long non-coding RNAs" (lncRNAs). These ...

Oncology & Cancer

Mutations in key cancer protein suggest new route to treatments

For years, scientists have struggled to find a way to block a protein known to play an important role in many cancers. The protein, STAT3, acts as a transcription factor—it performs the crucial task of helping convert DNA ...

Medical research

Latent virus and life expectancy

The telomeres are repetitive DNA sequences at each end of our chromosomes. Studies show that in every cell division, the telomere is shortened. As a result, the telomere limits the cell to a fixed number of divisions and ...

Genetics

Recycling histones through transcription

Cells reuse a part of the histones which are used to pack DNA, according to a current study by Karolinska Institutet. The study, which is published in the journal Genome Research, was conducted on yeast cells, but it is likely ...

page 3 from 7