Changes Related To Diabetic Cardiomyopathy Occur Soon After Diabetes Appears

"Dramatic" losses of a key biochemical substance in heart muscle tissue occur in the very earliest stages of diabetes induced in laboratory mice, scientists in Missouri are reporting ACS' Biochemistry, a weekly journal. Xianlin Han and colleagues did the study as part of a broader medical effort to understand diabetic cardiomyopathy. Heart abnormalities are the relatively common complication of diabetes and account for much of the increased mortality from heart disease in patients with diabetes.



The researchers used a powerful new technology termed "shotgun lipidomics" to show that hearts of diabetic mice lose large amounts of cardiolipin (CL), fatty materials essential for the heart's production of the energy needed for normal contraction. The changes, which involved a loss of CL followed by changes in the remaining CL, occurred as early as 5 days after rats became diabetic through administration of a compound that impairs insulin-producing cells in the pancreas.



Researchers observed the changes in two models of diabetes commonly used to study the two types of human diabetes. The changes happen before the appearance of toxic fatty materials regarded as a hallmark of diabetic cardiomyopathy and might be used as very sensitive biomarkers for the condition, the report indicates.



"Alterations in Myocardial Cardiolipin Content and Composition Occur at the Very Earliest Stages of Diabetes: A Shotgun Lipidomics Study"



CONTACT:

Xianlin Han, Ph.D.

Washington University School of Medicine

St. Louis, Missouri 63130






Green Goals for the Pharmaceutical Industry



The ACS Green Chemistry Institute Pharmaceutical Roundtable has developed a list of priority research areas where "green" alternatives to conventional reactions are needed to develop medications with minimal impact on the environment. Their review paper, describes and prioritizes research needs,. It can be a valuable resource for journalists writing about green chemistry. Although the paper focuses on pharmaceuticals, it includes reactions and processes used by the broader chemical enterprise.



rsc/Publishing/Journals/GC/article.asp?doi=b703488c



The 11th Annual Green Chemistry & Engineering Conference



This pioneering conference on one of the hottest topics in chemistry will be held June 26-29, 2007 at the Capital Hilton hotel in Washington, DC. gcande/



The American Chemical Society - the world's largest scientific society - is a nonprofit organization chartered by the U.S. Congress and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.



Contact: Michael Woods


American Chemical Society