Latin American Affairs

The purpose of the Latin America Affairs Section is to bridge the gap between obesity professionals in The Obesity Society (TOS) in North America and Latin America, specifically those interested in research development and collaborations within TOS and other regional societies in Latin America. The main aim of the Section is to develop academic strategies, training opportunities, research collaborations, and continuing education courses for the Spanish-speaking community.


  • Support academic events and research in obesity in Latin America.
  • Increase the presence of programming on obesity in Latin American populations at the annual meeting scientific meeting.

Join the Latin American Affairs Section

All section members must be a member of The Obesity Society. 

If you are not a member of The Obesity Society, join today. Be certain to select the Latin American Affairs Section when completing your profile.

If you are already a member and would like to join the Latin American Affairs Section please login to your member profile and select the Latin American Affairs Section. Once you have updated your profile, you will receive all communications pertaining to the section.

Please contact Sadie Campbell, This e-mail address is being protected from spambots. You need JavaScript enabled to view it , Governance and Executive Assistant if you have any questions.



June 2013 Newsletter

March 2013 Newsletter

November 2012 Newsletter

August 2012 Newsletter



arturo jimenez-cruzMarcela Rodríguez Flores, MD (Chair, 2013-2014)

Universidad Nacional Autónoma de México (UNAM)

Dr. Rodríguez Flores is an attending physician at the Obesity and Eating Disorders Clinic at the Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, and at the Internal Medicine Department at the Centro Médico Nacional 20 de Noviembre in Mexico City. Her research has focused on cardiovascular disease in people with obesity and obesity programs in Mexico, participating in the development of a National Obesity Program at a Public Health Institute (ISSSTE). From 2012 she works on the Study of Deep Brain Stimulation for the treatment of obesity at the the Centro Médico Nacional 20 de Noviembre in Mexico City. Dr. Rodríguez Flores is a Member of the American Heart Association and American Stroke Association since July 2004, of the Mexican Association of Internal Medicine since February 2006, and of the Obesity Society since October 2008. Joined the Canadian Obesity Network in July 2008.

 Marcela Perez, M.Sc (Co-Chair, 2013-2014)

Marcela PerezCentro Médico Nacional Siglo XXI Instituto Mexicano del Seguro Social

Dr. Perez is the Program Coordinator in the Clinical Research Training Center of the Mexican Institute of Social Security. Her research interest centers on investigating energy expenditure in obese pregnant women, the role of dietary and physical activity patterns impact on Obesity, Metabolic Syndrome and its components in children and adults. During her Master’s degree program she studied the effect of very short, short, medium and long bouts of moderate to vigorous physical activity on adiposity in school age children. Contrary to what physical activity guidelines recommend, which is performing two bouts of 15 minutes each, her work showed that bouts lasting 10 minutes are associated with lower adiposity.

In her Doctoral program, she is currently working on a study looking at differences in dietary patterns associated with Metabolic Syndrome in normal weight, overweight and obese subjects.

Miriam Jacoma SosaMiriam Jacome Sosa, PhD (Early-Career Representative, 2013-2014)

University of Missouri, Department of Nutrition and Exercise Physiology

Dr. Jacome Sosa’s research interest centers on investigating the impact of macronutrients on fatty acid and triglyceride metabolism during health and disease conditions (pre-diabetes and dyslipidemia) using an integrated physiology approach.

During her PhD program, she uncovered beneficial properties of a naturally occurring trans fat called vaccenic acid on visceral adiposity and dysfunctional intestinal and hepatic lipid metabolism in a rat model of pre-diabetes. Her work showed for the first time that these metabolic benefits of vaccenic acid are associated with its tissue-specific effects on lipid signaling pathways of the endocannabinoid system.

Dr. Jacome Sosa’s postdoctoral training in Dr. Elizabeth Parks’ laboratory will expand the understanding of how insulin resistance impacts intestinal lipid metabolism in humans. The project is utilizing stable isotopic techniques, GC/MS, and mathematical modeling to track the fate of nutrients (e.g. absorption/storage of carbohydrates and fat) in the human body. Specifically, they are testing whether intestinal signaling as a result of food taste is impaired in pre-diabetes.

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