John Walker

Marcela Brissova, PhD, and MD/PhD student John “Jack” Walker are part of the research team that developed a pseudoislet system for integrated studies of human islet function.
July 30, 2020

Pseudoislet system expected to advance pancreas and diabetes research

The multicellular, 3-D structure of human pancreatic islets — the areas of the pancreas containing hormone-producing or endocrine cells — has presented challenges to researchers as they study and manipulate these cells’ function, but Vanderbilt University Medical Center researchers have now developed a pseudoislet system that allows for much easier study of islet function.

By Jill Clendening
February 20, 2020

Post-transplant diabetes may be reversible: study

Post-transplantation diabetes mellitus (PTDM), a common complication of immunosuppressive drugs that are given to prevent transplant rejection, may be reversible and at least partially preventable, researchers at VUMC report.

By Bill Snyder
November 29, 2018

Beta cell biomarker findings may speed diabetes research

Researchers at Vanderbilt University Medical Center have identified a biomarker for insulin-producing beta cells. Their finding, reported this month in the journal Cell Metabolism, could lead to improved ways to study and treat diabetes.

By Bill Snyder