Sunday, June 14, 2009

Individuals who apply pesticides are found to have double the risk of blood disorder

http://www.eurekalert.org/pub_releases/2009-06/asoh-iwa061209.php

Public release date: 12-Jun-2009
Contact: Patrick C. Irelan
American Society of Hematology

(WASHINGTON, June 12, 2009) – A study involving 678 individuals who apply pesticides, culled from a U.S. Agricultural Health Study of over 50,000 farmers, recently found that exposure to certain pesticides doubles one's risk of developing an abnormal blood condition called MGUS (monoclonal gammopathy of undetermined significance) compared with individuals in the general population. The disorder, characterized by an abnormal level of a plasma protein, requires lifelong monitoring as it is a pre-cancerous condition that can lead to multiple myeloma, a painful cancer of the plasma cells in the bone marrow. The study will appear in the June 18 issue of Blood, the official journal of the American Society of Hematology.

"Previously, inconclusive evidence has linked agricultural work to an increased multiple myeloma risk. Our study is the first to show an association between pesticide exposure and an excess prevalence of MGUS," said lead author Ola Landgren, MD, PhD, of the National Cancer Institute (NCI), which is part of the National Institutes of Health, U.S. Department of Health and Human Services. "This finding is particularly important given that we recently found in a large prospective cancer screening study that virtually all multiple myeloma patients experienced a MGUS state prior to developing myeloma."

"As several million Americans use pesticides, it's important that the risks of developing MGUS from the use of pesticides is known," added senior study author and NCI investigator Michael Alavanja, DrPH.

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