carb
Dr. James L. Edwards Print Print   Email Email  
James Edwards

Position: Assistant Professor
Education: Ph.D. in Chemistry University of Michigan, Ann Arbor, 2006; M.S. in Chemistry Saint Louis University, St Louis, MO 2001; B.A. in Chemistry. Saint Louis University, St Louis, MO 1999
Email: edwardsj@umbi.umd.edu
Voice: (240) 314-6477
Mailing info | CARB Faculty Directory

Research Overview

Twenty-four million Americans suffer from diabetes and the number is increasing at a rate of 5% per year with a cost of $174 billion annually. Diabetes is the leading cause non-traumatic lower limb amputation, blindness, end stage renal disease, heart attack and stroke. The root cause behind these complications is that high levels of glucose found in diabetes are metabolized or processed in a damaging way. This excess glucose metabolism leads to formation of damaging agents in the cell, called reactive oxygen species, which disrupt a large number of metabolic pathways and other cellular processes.

 

As diabetic complications are tied primarily to dysfunctional metabolism, our work is focused on analyzing these metabolic changes using metabolomic technologies. Cellular metabolomics is defined as the global analysis of biological small molecules. Analysis of the metabolic changes can not only indicate where cellular breakdown occurs, but can also be used to determine the therapeutic efficacy of drugs before they require further extensive and expensive testing. To achieve the most complete picture of cellular metabolism, exquisitely sensitive and accurate analytical systems are developed.

Research Description

Research Specialty: Metabolomics of Diabetic Complications. Bioanalytical Chemistry, Biochemistry, Mass Spectrometry

 

Metabolomics of Diabetic Complications

 

Diabetes is the leading cause of blindness, end-stage renal disease and lower extremity amputations in the U.S. Excessive glucose metabolism in endothelial cells induces oxidative stress which ultimately compromises cellular integrity. While this aspect of diabetic complications is well established, the role of metabolic aberrations has been generally neglected. Advances in metabolite profiling through high sensitivity mass spectrometry now make it possible to analyze hundreds of metabolites in a single run. These capabilities enable investigators to discover unforeseen biochemical dysfunctions, elucidate pathophysiologies and reveal novel therapeutic targets. The research focus of the Edwards Laboratory is to investigate metabolic perturbations and therapeutics of diabetic complications using multiple biochemical and bio-analytical techniques.

 

Complete Information...

Representative Publications

Edwards, J.L.; Kennedy, R.T. “Metabolomic Analysis of Eukaryotic Tissue and Prokaryotes using Negative Mode MALDI Time of Flight Mass Spectrometry” Anal. Chem. 2005, 77, 2201-2209.

 

Edwards, J.L.; Edwards, R.L.; Reid, K.A.; Kennedy, R.T. “Effect of Decreasing Column Inner Diameter and Use of Off-line Two-Dimensional Chromatography on Metabolite Detection in Complex Mixtures” J. Chrom. A. 2007, 1172, 127-134.

 

Edwards, J.L.; Vincent, A.M.; Cheng, H.L.; Feldman, E.L. “Diabetic Neuropathy: Mechanisms to Management” Pharmacol Ther. 2008, 120, 1-34.

 

Complete Listing...

 

 

 

 

 

 

 

 

 

 

carb home umbi home