New Test to Identify Illegal Steroids in Cattle

In the new study, Rodat Cunningham and colleagues note that the European Union banned use of growth-promoting agents in cattle. However, widespread abuse of steroids continues and remains difficult to detect, they say.

The standard methods for detecting steroid abuse —mass spectrometry and gas chromatography — involve directly measuring these substances in cattle. But the tests are expensive and can’t detect some of the newer steroid hormones.

The scientists describe a new test that measures steroids indirectly based on chemical changes associated with growth and muscle development in steroid-treated cattle. Using a commercial blood analyzer commonly found in hospitals, the researchers measured 20 chemical markers, including proteins and cholesterol, in cattle treated with and without commonly used steroids over a 42-day study period. The new test detected the steroids with accuracy between 91 and 96 percent. The study opens the door to on-site steroid testing with portable instrumentation, the researchers say.

“Feasibility of a Clinical Chemical Analysis Approach To Predict Misuse of Growth Promoting Hormones in Cattle”

DOWNLOAD FULL TEXT ARTICLE: http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/ac801966g

CONTACT:
Rodat T. Cunningham, Ph.D.
Institute of Agri-Food and Land Use
Queen’s University Belfast
Belfast, United Kingdom
Phone: 44 (0)28 9097 6543
Fax: 44 (0)28 9097 6513
Email: R.Cunningham@qub.ac.uk