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Red Sage Next Osteoporosis Therapy

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An herb widely used in traditional Chinese medicine might hold the key to a new osteoporosis therapy that could prevent bone loss without causing side effects.  Using a compound derived from red sage, University of British Columbia researchers have found a way to selectively block an enzyme called Cathepsin K (CatK), which plays a major role in the breakdown of collagen in bones during osteoporosis. The findings were published in the Journal of Bone and Mineral Research.  “The development of osteoporosis drugs by pharmaceutical companies has focused heavily on blocking CatK in recent years,” said Dieter Brömme, a professor in the faculty of dentistry and a Canada Research Chair in Proteases and Disease. “All clinical trials to date have failed due to side effects ranging from stroke, skin fibrosis and cardiovascular issues. We’ve found a way to block CatK only in bone tissue that we think will prevent these other negative effects.”

From University of British Columbia  Photo John Vlahakis

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