About Us

Lab Members

Sherri Osborne-Lawrence, M.S.

Senior Research Scientist and Lab Manager

Sherri Osborne-Lawrence, MS
Sherri Osborne-Lawrence, M.S.

Sherri was born in Texas and has lived here all of her life. She received her B.A. degree in Biology from Austin College in Sherman, TX, and an M.S. degree in Molecular & Cell Biology from UT Dallas. She has worked in five laboratories at UT Southwestern Medical Center. Sherri's initial research projects involved positional cloning of genes involved in rheumatoid arthritis and early-onset familial breast cancer. After a few years assisting with the final stages of sequencing for the Human Genome Project, she focused on discovering how endothelial cell dysfunction leads to cardiovascular disease, with particular interests in estrogen modulation as well as the effects of C-reactive protein. Sherri joined the Zigman Lab in 2006 as Senior Research Scientist and Lab Manager, and has now expanded her interests to include ghrelin and its effects on metabolic pathways. Among many other contributions, Sherri has designed and generated several new mouse lines currently in use in the lab and by our collaborators.

Bharath Mani, Ph.D.

Postdoctoral Research Fellow

Bharath Mani, Ph.D.

Bharath was born and raised in Namakkal, a small town in the southern state of Tamil Nadu, India. Bharath’s initial training was at Tamil Nadu Veterinary and Animal Sciences University in Chennai, India, where he earned a B.VS.c. in Veterinary Sciences and an M.S. in Pharmacology. Afterwards, Bharath worked as a research scientist in India, where he was involved in conducting pre-clinical efficacy and toxicity studies of new chemical entities to treat cardiovascular diseases. In July of 2006, Bharath moved to Chicago and enrolled in the pharmacology graduate program at Loyola University Chicago. Bharath worked in the laboratory of Dr. Kenneth Byron to understand the regulation of vascular tone by ion channels in smooth muscle cells to receive his Ph.D. in 2012. To complement his training in cardiovascular pharmacology, Bharath wanted a broad-based training in metabolic syndrome, an important contributor to cardiovascular risk. So, he joined the Zigman Lab in May 2012 and has been working to understand mechanisms regulating ghrelin secretion and action. Bharath spends a lot of time with his family and is interested in exploring different cultures and food. Bharath is a profound follower of cricket, the most revered sport in India.

Prasanna Vijayaraghavan, M.S.

Research Assistant I

Prasanna Vijayaraghavan, M.S.

Prasanna was born and raised in Chennai, the capital city of Tamil Nadu, India, where he received his Bachelors degree in Biotechnology in 2012. Subsequently, he came to Dallas, where he completed a Masters degree in Applied Cognition and Neuroscience from the University of Texas at Dallas (UTD) in 2014. He worked as a research assistant in the Culture and Mind Lab with Dr. Jinkyung Na from 2013 to 2014 while attending UTD. Prasanna is interested in studying reinforcement learning and decision making using physiological and behavioral techniques and he joined the Zigman Lab to gain research experience to help him towards his goal. Prasanna is a vegetarian, he very much enjoys gaming and watching animes.

Sun-Hyun Park, Ph.D.

Postdoctoral Research Fellow

Photo: Sun-Hyun Park, Ph.D.
Sun-Hyun Park, Ph.D.

Sun-Hyun was raised in Kyeong San, a small town in the southern province of Korea. He received his B.A. degree in Electrical Engineering from Kyung Il University, and an M.S. degree in Biological Sciences from Yeung Nam University. He moved to Seoul, the capital city of Korea, to attend graduate school in the department of physiology at the College of Medicine, Seoul National University. He studied in the laboratory of Dr. Won-Kyeong Ho to understand the regulation of KATP channel traffickin g on pancreatic β-cells and received his Ph.D. in Biomedical Sciences in 2013. He worked as a Postdoctoral Fellow for 1 year at Harvard Medical School. His research projects involved Botulinum toxin effects on the synaptic vesicle release of the CNS. His hobbies are boxing, basketball and cooking. Sun-Hyun joined the Zigman lab in October 2015.