Lab Members

Johnston lab members

Top (from left to right): Research associate Chin-Chi Liu, principal investigator Andrea Johnston, and research associate Sarah Keeton,.

Bottom (left to right): Summer scholar and DVM student Jackie Post and summer scholar Jillian Myers.


Principal Investigator

Andrea Jognston with a dogAndrea N. Johnston, DVM, Ph.D., DACVIM

Diplomate American College of Veterinary Internal Medicine

Assistant Professor of Small Animal Internal Medicine


PhD in Molecular Biology: Genetics, Development, and Disease

UT Southwestern Medical Center: Dallas, TX

Thesis: Forward small molecule screen identifies novel protein chaperone inhibitor that blocks necroptosis. 

Principal investigator: Zhigao Wang, PhD, Virginia Murchison Linthicum Scholar in Medical Research; Emerging Scholar in Medical Research

Residency in Small Animal Internal Medicine

Cornell University, College of Veterinary Medicine: Ithaca, NY

Diplomate, American College of Veterinary Internal Medicine

Doctor of Veterinary Medicine with Thesis

Tufts University School of Veterinary Medicine: North Grafton, MA

Thesis: The role of protein kinases, Akt, protein kinase A, and protein kinase C-zeta, in bile acid induced apoptosis in human hepatoma cells

Bachelor of Science in Agriculture: Microbiology & Veterinary Science

University of Arizona: Tucson, AZ

VCS Research Associates


Sarah Keeton, PhD





Tifini Batts

Tifini L. Batts, DVM, MSPHBat


Kalamazoo College, Kalamazoo, MI; Completed 6/2011. BA in chemistry

Meharry Medical Collage, Nashville, TN; Completed 5/2013, MS in public health

Michigan State University College of Veterinary Medicine, East Lansing, MI; Completed 5/2017, Doctorate of Veterinary Medicine 

Dr. Batts's primary work objective is to determine how the disciplines of internal medicine and public health, particularly the social determinants of health, intersect and impact patient outcome, an interest that developed in graduate school. Since starting her career at LSU, Dr. Batts has worked in the lab of Dr. Andrea Johnston with her first project involving the assessment of characteristics (biochemical and histologic) of liver dysfunction associated with preeclampsia in the preeclampsia-like BPH/5 mouse model.


Graduate Students

Priscilla Devora

Priscilla Devora

Priscilla earned a Bachelor's of Science in Chemistry and a Bachelor's of Science in Biology from the University of Arkansas - Fort Smith. She was then accepted for the Dual Degree DVM/PhD fellowship from Louisiana State University School of Veterinary Medicine. She is currently a 4th year DVM student and 1st year PhD student. Her current research involves Heterobilharzia amerciana and hepatocellular carcinoma.




Summer Scholars

Jacqueline Post

Jacqueline Post, BS

LSU Vet Med 2021

Jackie received her Bachelor of Science in Equine Science and Management from the University of Kentucky (Lexington, KY). She then went on to work as a histology technician at University of Arkansas for Medical Sciences before starting veterinary school at LSU. She is currently pursuing a career in academia as a clinician-scientist and plans to specialize after receiving her DVM. 


Jillian Myers, BS Jullian Meyers

LSU Vet Med 2021