Rexford Sefah Ahima, MD, PhD
Associate Professor of Medicine
Director
Faculty
Staff Endocrinologist
Staff Endocrinologist
Director
Director
Faculty Member
Associate Director
Director
Department: Medicine
Graduate Group Affiliations
Contact information
715 Clinical Research Building
415 Curie Blvd.
Philadelphia, PA 19104-6149
415 Curie Blvd.
Philadelphia, PA 19104-6149
Office: (215) 573-1872
Fax: (215) 573-5809
Fax: (215) 573-5809
Email:
ahima@mail.med.upenn.edu
ahima@mail.med.upenn.edu
Publications
Links
Search PubMed for articles
Pharmacological Sciences graduate group faculty webpage.
Ahima Labs
Cell and Molecular Biology graduate group faculty webpage.
Search PubMed for articles
Pharmacological Sciences graduate group faculty webpage.
Ahima Labs
Cell and Molecular Biology graduate group faculty webpage.
Education
B.Sc. (Endocrinology)
University of London, 1981.
M.D.
University of Ghana Medical School, 1986.
Ph.D (Neuroscience)
Tulane University, New Orleans, LA, 1992.
B.Sc. (Endocrinology)
University of London, 1981.
M.D.
University of Ghana Medical School, 1986.
Ph.D (Neuroscience)
Tulane University, New Orleans, LA, 1992.
Post-Graduate Training
Intern in Medicine, Jack D. Weiler Hospital of the Albert Einstein College of Medicine/Jacobi Medical Center, Bronx, NY, 1992-1993.
Resident in Medicine, Jack D. Weiler Hospital of the Albert Einstein College of Medicine/Jacobi Medical Center, Bronx, NY, 1993-1995.
Research Fellow, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 1995-1996.
Houseofficer in Medicine and Surgery , Korle Bu Teaching Hospital, Accra, Ghana, 1986-1987.
Clinical Fellow, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 1996-1998.
Intern in Medicine, Jack D. Weiler Hospital of the Albert Einstein College of Medicine/Jacobi Medical Center, Bronx, NY, 1992-1993.
Resident in Medicine, Jack D. Weiler Hospital of the Albert Einstein College of Medicine/Jacobi Medical Center, Bronx, NY, 1993-1995.
Research Fellow, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 1995-1996.
Houseofficer in Medicine and Surgery , Korle Bu Teaching Hospital, Accra, Ghana, 1986-1987.
Clinical Fellow, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 1996-1998.
Certifications
American Board of Internal Medicine, 1995.
American Board of Internal Medicine, Subspecialty in Endocrinology, Diabetes & Metabolism, 1998.
Permanent linkAmerican Board of Internal Medicine, 1995.
American Board of Internal Medicine, Subspecialty in Endocrinology, Diabetes & Metabolism, 1998.
Description of Research Expertise
Research Interests- Role of novel aminosterols in body weight and glucose regulation.
-CNS actions of resistin and adiponectin
-Role of NPY in glucose homeostasis
Key words: Brain, neuroendocrine, insulin, neuropeptide, obesity, diabetes.
Description of Research
Research in my lab focuses on the interrelationship between energy stores and regulation of energy balance by the brain. Contrary to the prevailing view of the adipocyte as merely a specialized cell for the storage of excess energy in the form of triglycerides, there is increasing evidence that adipose tissue plays a more active role in energy homeostasis. The levels of leptin and other products secreted by adipose tissue are dependent on the status of energy balance, and serve as important signals linking energy stores to peripheral and central homeostatic mechanisms. Adipose-derived hormones, cytokines and other factors have profound effects on adipocytes and peripheral targets e.g liver and pancreas, and also regulate feeding behavior, thermogenesis and neuroendocrine function.
Projects
1. Role of novel aminosterols in body weight and glucose regulation.
2. CNS actions of resistin and adiponectin
3. Role of NPY in glucose homeostasis
Rotation Projects for 2006-2007
-Aminosterols and energy homeostasis
-Role of adiponectin in glucose and energy homeostasis
-NPY and pancreatic islet function
Lab personnel:
Gladys Varella- CAMB graduate student
Neel Singhal- Neuroscience graduate student
Marie Hildebrandt- Pharmacology graduate student
Yong Qi, MD- Research Specialist
Haiyan Gu, MS- Research Specialist
Hiral Patel, BS- Research Specialist
Yumi Imai, MD- Instructor of Medicine
Malaka Jackson, MD- Pediatric Endocrinology Fellow


