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Bulgarian Academy of Sciences

Acute cobalt poisoning in vivo depresses Ca-sensitive K currents

Published in Cardiovascular Device Liability Week, January 2nd, 2005

A recent report described calcium-dependent changes in potassium currents in guinea-pig coronary artery smooth muscle cells after acute cobalt loading in vivo.

According to a study from Bulgaria, "The aim of the present study was to determine whether cobalt poisoning induces haem oxidase isoenzyme-1 (HO-1) in coronary artery smooth muscle, or accounts for any changes in coronary smooth muscle cell (SMCs) membrane ionic currents that could result from this type of heavy metal poisoning."

K. Hristov and colleagues of the Bulgarian Academy of Sciences reported, "In SMCs isolated from cobalt-treated guinea-pig coronaries, K+ channel currents...

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