science newsletter: Science News SciGuru.com

Σάββατο 23 Νοεμβρίου 2013

Science News SciGuru.com

Epigenetic changes may explain chronic kidney disease
Diabetes drug helped male mice live longer, smaller effect in females
Different cellular mechanisms behind regenerated body parts

Epigenetic changes may explain chronic kidney disease

Posted: 22 Nov 2013 10:03 AM PST

The research of physician-scientist Katalin Susztak, MD, PhD, associate professor of Medicine in the Renal Electrolyte and Hypertension Division, at the Perelman School of Medicine, University of Pennsylvania, strives to understand the molecular roots and genetic predisposition of chronic kidney disease.

Diabetes drug helped male mice live longer, smaller effect in females

Posted: 22 Nov 2013 07:56 AM PST

Research led by the University of Michigan, the Jackson Laboratory in Maine and the University of Texas Health Sciences Center has found that a drug commonly used to treat type 2 diabetes increases the median lifespan of male mice by 22 percent.

The effects of the drug known as acarbose were smaller in female mice, producing only a 5 percent increase in lifespan, according to the findings that appear in Aging Cell.

Different cellular mechanisms behind regenerated body parts

Posted: 22 Nov 2013 07:45 AM PST

Scientists at Karolinska Institutet have discovered that two separate species of salamander differ in the way their muscles grow back in lost body parts. Their findings on the species-specific solutions, published in the scientific periodical Cell Stem Cell, demonstrate there is more than one mechanism of tissue regeneration.