The melodious mouse that sings for sex

A small, brown mouse found in the forests of Central America bucks the rodent trend of conversing in high-pitched squeaks often inaudible to the human ear.

Researchers discover obesity-related hormone in fruit flies

Researchers have discovered in fruit flies a key metabolic hormone thought to be the exclusive property of vertebrates. The hormone, leptin, is a nutrient sensor, regulating energy intake and output and ultimately controlling ...

Leptin-controlled gene can reverse diabetes

Researchers have found that even a very little bit of the fat hormone leptin goes a long way when it comes to correcting diabetes. The hormone controls the activity of a gene known as IGFBP2 in the liver, which has antidiabetic ...

How to get obese mice moving -- and cure their diabetes

Mice lacking the fat hormone leptin or the ability to respond to it become morbidly obese and severely diabetic—not to mention downright sluggish. Now, a new study in the June Cell Metabolism shows that blood sugar control ...