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Is your hemoglobin 'trending'?
Date:8/3/2010

Anemia, a common blood disorder characterized by low hemoglobin levels, has long been associated with those suffering from colorectal cancer. But researchers at Tel Aviv University have discovered that, more than a symptom of active disease, low hemoglobin levels can actually indicate a potential for colon cancer years before it's diagnosed.

Graduate student Inbal Goldshtein, who works with Dr. Gabriel Chodick and Dr. Varda Shalev of Tel Aviv University's School of Public Health and Maccabi Healthcare Services' Department of Medical Informatics, says that paying close attention to routine blood test results can be an effective screening system for colon cancer which, when diagnosed early enough, can be treated effectively. More than 50,000 people in the U.S. will die from colon cancer in 2010. Better screening could significantly reduce those numbers, Goldshtein says.

The study, recently published in the European Journal of Cancer Prevention, shows that most patients with colon cancer have a history of consistently declining hemoglobin levels up to four years before being diagnosed with the disease. Previously, says Goldshtein, researchers only looked for a sharp decrease in hemoglobin levels as a symptom of colon cancer. But Goldshtein and her fellow researchers have discovered that it's the continuous long-term decline that may announce the onset of cancer. A declining trend of more than 0.28 grams per decilitre every six months over a four-year period was observed and may serve as a warning of illness on the horizon.

An important downward trend

Taking into account the correlation between anemia and colorectal cancer, the team was keen to discover if a decline in hemoglobin levels could be detected prior to the critical stages of the disease ― something no researcher had yet attempted to quantify. Over 3,000 patients suffering from colorectal cancer participated in the study; they were compared wi
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Contact: George Hunka
ghunka@aftau.org
212-742-9070
American Friends of Tel Aviv University
Source:Eurekalert  

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