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Metabolic study in mice could lead to 'good cholesterol' boosters

tase activity leads to an increase in EL and a decline in HDL-C.

Likewise, they showed that increased activity of proprotein convertases in the liver gives a significant boost to the protective HDL-C.

Proprotein convertases are an unexpected new player in HDL-C metabolism, Jin said. By manipulating levels of the enzyme in both directions, we were able to reduce HDL-C to almost nothing or double it. That wide range of effects suggests that it may be theoretically possible to manipulate good cholesterol levels to whatever point you like.

He emphasized, however, that the new findings represent basic research in animals. Further investigation will examine to what extent the pathway is preserved in humans, Jin said. The authors will also look for chemicals capable of modifying the pathway, which could hold promise as new good-cholesterol-boosting drugs.


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Contact: Erin Doonan
edoonan@cell.com
617-397-2802
Cell Press
7-Aug-2007


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