A drug that reverses osteoporosis in mice looks like a promising candidate for treating the human version of the disease. Gerard Karsenty and his colleagues at Columbia University Medical Center have shown that blocking the neurotransmitter serotonin–secreted from the gut–promotes bone growth. The research appears on-line at www.nature.com/naturemedicine – Yadav et al. Nature Medicine, 7 February 2010. DOI: 10.1038/nm.2098
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