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Science News for July 19, 2005


Insulin pulses keep the liver lean

New study reveals that acute insulin pulses limit fat synthesis in the liver by activating a key molecule called CEACAM1. Regular periods of fasting between meals help maintain a healthy liver by allowing insulin levels to fluctuate.

SourceCell Press·JournalCell Metabolism·DateJul 19, 2005

Micro-molecule plays big role in birth defects

Scientists with the UF Genetics Institute found that eliminating microRNAs from specific tissues can reveal their vital role in healthy development. The technique may provide insight into human birth defects and has potential applications in studying the function and malfunction of microRNAs, a crucial part of human gene expression.

SourceUniversity of Florida·JournalProceedings of the National Academy of Sciences·DateJul 19, 2005