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The Weight of Obesity Panel

Sally Radovick, M.D. - moderator
Kimberly Gudzune, M.D., M.P.H.
Anthony Kalloo, M.D.
Anne Lidor, M.D., M.P.H.


Sally Radovick, M.D.Dr. Sally Radovick
Lawson Wilkins Professor of Pediatrics
Director, Division of Pediatric Endocrinology
Vice Chair for Research
Department of Pediatrics

Dr. Sally Radovick is the Lawson Wilkins Professor of Pediatrics and Division Director of Pediatric Endocrinology at Johns Hopkins Children's Center. She is also the Vice-Chair of Research in the Department of Pediatrics.

Nationally and internationally recognized for academic leadership, research, and teaching, Dr. Sally Radovick is a specialist in growth and development and pubertal disorders in children.  Her research has focused on the development, regulation, of hypothalamic-pituitary function. One area of this research focuses on the developmental regulation of the gonadotropin-releasing hormone (GnRH) neuron.. Dr. Radovick's laboratory has demonstrated that the GnRH gene is the target of growth factor and nuclear hormone signaling pathways, which link nutrition and growth with pubertal development and reproduction.  Her studies have shown that obesity in children and adolescence is associated with increases in disorders of puberty and infertility. 

An author and co-author of more than 90 peer-reviewed scientific publications and has been invited to write a dozen book chapters in her field, Dr. Radovick is also Senior Editor of the book Clinical Management of Pediatric Endocrine Disorders (Humana Press, 2003, 2012 in press), and is an author of  “Puberty in the female and its disorders” in Sperling’s textbook,  Pediatric Endocrinology  and “Normal and aberrant growth” in Williams Textbook of Endocrinology.  She served as Associate Editor for Pediatric Endocrinology for the Journal of Clinical Endocrinology and Metabolism.

Chair of the Research Council for the Pediatric Endocrine Society where she previously served as a Council member and Chair of the Drug and Therapeutics Committee, she is also a member of the Guidelines Committee of the Endocrine Society and co-Chair of the Hypothyroidism subcommittee.

Dr. Radovick participates in teaching of undergraduates, medical students, residents, and endocrinology fellows.  Her most notable teaching efforts have been in training individuals for scientific research.  She is particularly interested in nurturing the careers of junior faculty.  She actively participates in clinical activities, holding pediatric endocrinology teaching clinics.

Recognized among the Best Doctors in America (Woodward-White) and in Baltimore Magazine as a clinical pediatric endocrinologist, Dr. Radovick received her medical degree from Northeastern Ohio Universities College of Medicine.  She then completed her residency in Pediatrics at Case Western Reserve University and her fellowship in Pediatric Endocrinology at the National Institutes of Health (NIH).


Kimberly Gudzune, M.D., M.P.H.Dr. Kimberly Gudzune
Assistant Professor of Medicine

An assistant professor of medicine within the Division of General Internal Medicine, Dr.  Gudzune’s research focuses on the impact of obesity on the patient-physician relationship and how social relationships and social networks influence body weight.

Currently, Dr. Guzune sees patients at the Johns Hopkins Medicine Digestive Weight Loss Center. In her practice, Dr. Gudzune uses an integrative approach to design weight-management plans that blend conventional methods of diet, exercise and medications with other modalities such as massage, acupuncture and mind-body therapy.

Dr.  Gudzune is board-certified in internal medicine and received her bachelor’s degree in environmental biology from the University of Colorado. She also attended Tulane University in New Orleans, Louisiana, where she received her doctor of medicine and master of public health degrees. She completed her training in internal medicine at the University of Maryland Medical System. Since completing residency, Dr. Gudzune has engaged in additional training in the area of weight management.




Anthony Kalloo, M.D.Anthony Kalloo, M.D.
Professor of Medicine
Director of Division of Gastroenterology


Dr. Anthony Kalloo is professor of medicine and director of the division of gastroenterology and hepatology at Johns Hopkins.

A past associate editor of Gastrointestinal Endoscopy, he is the founder and immediate past medical director of The Hopkins Gastroenterology and Hepatology Resource Center (, a 3000 page multilingual web resource for patients and physicians. He has authored over 150 scientific papers, review articles and book chapters.

Kalloo has pioneered and has multiple patents including the use of Botulinum Toxin in the gastrointestinal tract, a new endoscopic procedure has been shown to speed up weight loss by temporarily relaxing the muscles of the stomach. He is the pioneer of Natural Orifice Translumenal Endoscopic Surgery (NOTES), a technique that will enable abdominal surgery without the use of incisions.

Dr. Kalloo is a past Panel Chair for Gastroenterology and Urology Devices with the United States Food and Drug Administration. He is the recipient of the 2009 Distinguished Educator of the Year of the Award from the American Society for Gastrointestinal Endoscopy.  

He received his medical degree from the University of West Indies Medical School. Dr. Kalloo interned and completed his residency in Internal medicine at Howard University Hospital in Washington, D.C. and completed a fellowship training program at the combined Georgetown University, VA Medical Center and NIH program.



Anne Lidor, M.D., M.P.H.Anne Lidor, M.D., M.P.H.
Associate Professor of Surgery
Director, Upper Gastrointestinal Surgery Center


Dr. Anne Lidor is associate professor of surgery and director of the Upper Gastrointestinal Surgery Center.

Specializing in laparoscopic gastrointestinal and bariatric surgery, with a focus on the surgical treatment of complex foregut diseases, Dr. Lidor has authored and been co-author of over 45 book chapters and article, many dealing with surgical solutions to obesity issues.

She completed her general surgery residency at George Washington University Medical Center and a minimally invasive and bariatric surgery fellowship at The Johns Hopkins Hospital.  Additionally, she received her master’s in public health from The Johns Hopkins Bloomberg School of Public Health.