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Science News for March 24, 2002


Bone loss resumes when hormone replacement therapy stops, but at normal rate

A long-term follow-up study of over 800 postmenopausal women found that stopping hormone replacement therapy resumes bone loss at a rate similar to those who never took the drugs. The study showed that while bone mass increased in the first 36 months after starting hormone replacement therapy, there was little gain after that.

SourceAtrium Health Wake Forest Baptist·JournalArchives of Internal Medicine·DateMar 24, 2002

MGH study identifies key immune system molecule

Researchers at MGH identified a key immune system molecule, PGRP-LC, essential for recognizing and ingesting gram-negative bacteria like E.coli. The protein plays a crucial role in the macrophage's response to infection.

SourceMassachusetts General Hospital·JournalNature·DateMar 24, 2002