Joyce M. Richey, PhD

Associate Professor of Clinical Physiology & Neuroscience

Associate Dean for Diversity and Inclusion (Education)

Chief Diversity Officer

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Dr. Richey is currently a faculty member in the department of Physiology and Biophysics at Keck School of Medicine of USC and a member of the diabetes and obesity research groups. Dr. Richey conducts research examining the relationship between diabetes, obesity and hypertension.

She has received research grants from the National Institute of Digestive, Diabetes and Kidney Disorders; National Institute of Heart, Lung and Blood; American Heart Association and the American Diabetes Association. Her research has resulted in publications in peer-reviewed medical journals. She is the immediate past president of the Los Leadership Council of the American Diabetes Association; chairperson of the Los Angeles African American Diabetes Task Force; and a peer grant reviewer for the Western and National Affiliates of the American Heart Association.


  • Social network analysis of the CaRE2 health equity center: Team science in full display Clin Transl Sci. 2024 Mar; 17(3):e13747. . View in PubMed
  • Florida-California Cancer Research, Education and Engagement (CaRE2) Health Equity Center: Structure, Innovations, and Initial Outcomes Cancer Control. 2023 Jan-Dec; 30:10732748231197878. . View in PubMed
  • J Natl Med Assoc. 2022 Oct; 114(5):518-524. . View in PubMed
  • An Analysis of U54 Partnerships to Advance Cancer Health Equity (PACHE) Publications J Cancer Educ. 2022 06; 37(3):599-607. . View in PubMed
  • Assessing collaboration among team scientists within a triadic research center partnership Qual Res Med Healthc. 2021 Oct 05; 5(2):9724. . View in PubMed
  • Interaction of Gut Microbiota and High-Sodium, Low-Potassium Diet in Altering Plasma Triglyceride Profiles Revealed by Lipidomics Analysis Mol Nutr Food Res. 2019 12; 63(24):e1900752. . View in PubMed
  • Activation of NPRs and UCP1-independent pathway following CB1R antagonist treatment is associated with adipose tissue beiging in fat-fed male dogs Am J Physiol Endocrinol Metab. 2019 09 01; 317(3):E535-E547. . View in PubMed
  • Re-visiting the Endocannabinoid System and Its Therapeutic Potential in Obesity and Associated Diseases Curr Diab Rep. 2017 09 14; 17(10):99. . View in PubMed
  • CB1R antagonist increases hepatic insulin clearance in fat-fed dogs likely via upregulation of liver adiponectin receptors Am J Physiol Endocrinol Metab. 2015 Oct 15; 309(8):E747-58. . View in PubMed
  • Lipid-induced insulin resistance does not impair insulin access to skeletal muscle Am J Physiol Endocrinol Metab. 2015 Jun 01; 308(11):E1001-9. . View in PubMed
  • Fasting, post-OGTT challenge, and nocturnal free fatty acids in prediabetic versus normal glucose tolerant overweight and obese Latino adolescents Acta Diabetol. 2015 Apr; 52(2):277-84. . View in PubMed
  • Salsalate treatment improves glycemia without altering adipose tissue in nondiabetic obese hispanics Obesity (Silver Spring). 2015 Mar; 23(3):543-51. . View in PubMed
  • Corrections: High-Fat Diet-Induced Insulin Resistance does not Increase Plasma Anandamide Levels or Potentiate Anandamide Insulinotropic Effect in Isolated Canine Islets PLoS One. 2015; 10(6):e0131033. . View in PubMed
  • High-fat diet-induced insulin resistance does not increase plasma anandamide levels or potentiate anandamide insulinotropic effect in isolated canine islets PLoS One. 2015; 10(4):e0123558. . View in PubMed
  • Genetic variation in MTNR1B is associated with gestational diabetes mellitus and contributes only to the absolute level of beta cell compensation in Mexican Americans Diabetologia. 2014 Jul; 57(7):1391-9. . View in PubMed
  • Failure of homeostatic model assessment of insulin resistance to detect marked diet-induced insulin resistance in dogs Diabetes. 2014 Jun; 63(6):1914-9. . View in PubMed
  • Hepatic insulin clearance is the primary determinant of insulin sensitivity in the normal dog Obesity (Silver Spring). 2014 May; 22(5):1238-45. . View in PubMed
  • Diabetes. 2013 Dec; 62(12):4006-8. . View in PubMed
  • CB(1) antagonism restores hepatic insulin sensitivity without normalization of adiposity in diet-induced obese dogs Am J Physiol Endocrinol Metab. 2012 May 01; 302(10):E1261-8. . View in PubMed
  • CRP is related to higher leptin levels in minority peripubertal females regardless of adiposity levels Obesity (Silver Spring). 2012 Mar; 20(3):512-6. . View in PubMed
  • Simplified method to isolate highly pure canine pancreatic islets Pancreas. 2012 Jan; 41(1):31-8. . View in PubMed
  • Large size cells in the visceral adipose depot predict insulin resistance in the canine model Obesity (Silver Spring). 2011 Nov; 19(11):2121-9. . View in PubMed
  • Consistency of the disposition index in the face of diet induced insulin resistance: potential role of FFA PLoS One. 2011 Mar 30; 6(3):e18134. . View in PubMed
  • Objectively measured physical activity is negatively associated with plasma adiponectin levels in minority female youth Int J Pediatr Endocrinol. 2010; 2010. . View in PubMed
  • Experimental hyperlipidemia dramatically reduces access of insulin to canine skeletal muscle Obesity (Silver Spring). 2009 Aug; 17(8):1486-92. . View in PubMed
  • Rimonabant prevents additional accumulation of visceral and subcutaneous fat during high-fat feeding in dogs Am J Physiol Endocrinol Metab. 2009 Jun; 296(6):E1311-8. . View in PubMed
  • A high-sugar/low-fiber meal compared with a low-sugar/high-fiber meal leads to higher leptin and physical activity levels in overweight Latina females J Am Diet Assoc. 2009 Jun; 109(6):1058-63. . View in PubMed
  • Direct administration of insulin into skeletal muscle reveals that the transport of insulin across the capillary endothelium limits the time course of insulin to activate glucose disposal Diabetes. 2008 Apr; 57(4):828-35. . View in PubMed
  • Nocturnal free fatty acids are uniquely elevated in the longitudinal development of diet-induced insulin resistance and hyperinsulinemia Am J Physiol Endocrinol Metab. 2007 Jun; 292(6):E1590-8. . View in PubMed
  • Abdominal obesity: role in the pathophysiology of metabolic disease and cardiovascular risk Am J Med. 2007 Feb; 120(2 Suppl 1):S3-8; discussion S29-32. . View in PubMed
  • Reduced access to insulin-sensitive tissues in dogs with obesity secondary to increased fat intake Diabetes. 2006 Jun; 55(6):1769-75. . View in PubMed
  • Metabolic dysregulation with atypical antipsychotics occurs in the absence of underlying disease: a placebo-controlled study of olanzapine and risperidone in dogs Diabetes. 2005 Mar; 54(3):862-71. . View in PubMed
  • Bezafibrate, an anti-hypertriglyceridemic drug, attenuates vascular hyperresponsiveness and elevated blood pressure in fructose-induced hypertensive rats Can J Physiol Pharmacol. 1999 Oct; 77(10):755-62. . View in PubMed
  • Failure of acute hyperinsulinemia to alter blood pressure is not due to baroreceptor feedback Am J Hypertens. 1999 Apr; 12(4 Pt 1):405-13. . View in PubMed
  • Angiotensin II induces insulin resistance independent of changes in interstitial insulin Am J Physiol. 1999 11; 277(5):E920-6. . View in PubMed
  • Evidence for direct action of alloxan to induce insulin resistance at the cellular level Diabetologia. 1998 Nov; 41(11):1327-36. . View in PubMed
  • Synergistic actions of insulin and troglitazone on contractility in endothelium-denuded rat aortic rings Am J Physiol. 1998 11; 275(5):E882-7. . View in PubMed
  • Extracellular glucose distribution is not altered by insulin: analysis of plasma and interstitial L-glucose kinetics Am J Physiol. 1996 Nov; 271(5 Pt 1):E855-64. . View in PubMed
  • Giant multinucleated hepatocytes in an adult with chronic active hepatitis Gastroenterology. 1977 Sep; 73(3):570-4. . View in PubMed