Natural Protein may Limit Heart Attack Injury

by Rajshri on  May 08, 2008 at 4:55 PM Heart Disease News
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Natural Protein may Limit Heart Attack Injury
Thrombopoietin (TPO), which is a naturally occurring protein, has been found to be effective in limiting heart attack injury. Currently TPO is being developed as a drug to boost platelet count in cancer patients during chemotherapy.

Researchers at the Medical College of Wisconsin in Milwaukee have shown for the first time that TPO can protect the heart against injury during a heart attack.

The study was led by John E. Baker PhD, professor of pediatric surgery in the division of cardiothoracic surgery.

Currently there are no therapies available to directly protect the heart against the damaging effects of a heart attack. Dr. Baker's team has shown that administering a single dose of TPO to rats during a heart attack decreased the extent of permanent muscle damage to the heart and increased the ability of the heart to function afterwards, when compared with no drug treatment.

Additionally, they found that a single cardioprotective treatment with TPO did not increase platelet count. This novel finding suggests the cardioprotective actions of TPO are separate from its ability to increase platelet count.

Dr. Baker has submitted a US and worldwide patent application on the tissue protective properties of TPO. Dr. Baker's discovery is licensed to Cardiopoietis, a Wisconsin LLC, formed to develop drugs for the treatment of heart attacks.

TPO is a hormone, which is naturally produced by the liver and kidney. Dr. Baker's investigative team had previously shown that erythropoietin, a protein and pharmaceutical currently in clinical use to treat anemia in end-stage kidney disease, protects the rat heart against injury during a heart attack.

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