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Diana Cummings, Ph.D.

Diana Cummings.
Gut-Brain Interactions in Nutrition and Obesity; Nutrient Sensing; Gastrointestinal Interoception; Neurobiology of Nausea and Vomiting

Responsibilities & Activities

As a program director in the Division of Digestive Disease and Nutrition at NIDDK, I support basic and translational research on bidirectional pathways and communication between the brain and gastrointestinal system that contribute to the regulation of food intake, nutrient sensing, and obesity in the context of gastrointestinal disorders. This portfolio encompasses research on central, autonomic, and bloodborne pathways, gastrointestinal interoception, and gut-brain-microbiome interactions involved in feeding behavior, digestive disorders, and the development of obesity. I also oversee Career Development (“K”) awards related to digestive diseases, nutrition, and obesity that include a neurobiology or neurogastroenterology focus.

Research Programs

Gastrointestinal Neurobiology
Research on the neural control of the gastrointestinal system.

Metabolism, Energy Balance & Obesity
Energy balance, thermogenesis, and the control of metabolism by the autonomic nervous system in obesity and diabetes.

Neurobiology of Obesity
Neurobiology of energy homeostasis and peripheral metabolism. Basic studies on homeostatic and hedonic contributions to obesity and type 2 diabetes. Neurobiology of food appraisal, motivation, memory and foraging.

Committees & Working Groups

  • NIDDK Obesity Research Working Group, Member
  • NIDDK Training Program Directors Committee, Member
  • Foundational Nutrition Science Working Group, Member
Last Reviewed March 2024