JonathanQuentinPurnellMD

Endocrinology • Portland, OR

Diabetes, Lipid Metabolism

Associate Professor, Medicine, Oregon Health and Science University School of Medicine

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Office
3181 SW Sam Jackson Park Rd
Portland, OR 97239
Phone+1 503-494-5732

Fax+1 503-494-6969

Education & Training

University of WashingtonFellowship, Endocrinology, Diabetes, and Metabolism, 1993 - 1996
University of Vermont Medical CenterResidency, Internal Medicine, 1986 - 1990
Oregon Health and Science University School of MedicineClass of 1986

Certifications & Licensure

OR State Medical License 2000 - 2025
WA State Medical License 1993 - 2001
MD State Medical License 1990 - 1993
VT State Medical License 1986 - 1990
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Endocrinology, Diabetes and Metabolism
American Board of Obesity Medicine Obesity Medicine

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2011-2013

Clinical Trials

Low Dose Growth Hormone (GH) on Insulin Sensitivity and Cortisol Production Rates Start of enrollment: 2006 Jan 01
Completed
Early Phase 1
Improving Diabetes After Bariatric Surgery Start of enrollment: 2008 Mar 01
Completed
Hypothalamic Functional Magnetic Resonance Imaging (fMRI) Response to Nutrients Start of enrollment: 2006 Oct 01
Completed
Phase 2
A Study of the Functional Magnetic Resonance Imaging Response to Leptin and Pramlintide Start of enrollment: 2006 Jan 01
Active, not recruiting
Not Applicable
Ghrelin Regulation and Structure: Effect of Diet Composition on Ghrelin Start of enrollment: 2008 Feb 01
Completed
Not Applicable
Regulation of Cortisol Metabolism and Fat Patterning Start of enrollment: 2005 May 01
Active, not recruiting
Not Applicable
Cortisol Regulation in Polycystic Ovary Syndrome (PCOS) Start of enrollment: 2006 Oct 01
Completed
Not Applicable
The Role of R-Alpha Lipoic Acid in the Treatment of Atherosclerotic Vascular Disease Start of enrollment: 2011 Aug 01
Active, not recruiting
Phase 2, Phase 3
Lipoic Acid and Prevention of Heart Disease Start of enrollment: 2009 Apr 01
Active, not recruiting
Phase 2, Phase 3
Ghrelin Regulation and Structure: Effect of Thiazolidinedione Therapy on Ghrelin Start of enrollment: 2009 Feb 01
Terminated
Not Applicable
Magnetic Resonance Spectroscopic Imaging Study of Prostatic Fats to Distinguish the Difference Between High and Low Risk Prostate Cancer Start of enrollment: 2013 Jan 01
Completed
Bringing Weight Management Into the Primary Care Pediatric Practice Start of enrollment: 2022 Jul 01
Recruiting
Roles: Principal Investigator, Contact
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Publications & Presentations

PubMed

2 citations
Assessing the state of obesity care: Quality, access, guidelines, and standards.
Lee M Kaplan, Caroline M Apovian, Jamy D Ard, David B Allison, Louis J Aronne
Obesity Science & Practice. 2024-08-01
Metabolic-Bariatric Surgery for Type 2 Diabetes: Time(ing) for a Change.
Jonathan Q Purnell
Diabetes. 2024-04-01
3 citations
Hypothalamic control of body fat mass by food intake: The key to understanding why obesity should be treated as a disease.
Jonathan Q Purnell, Carel W le Roux
Diabetes, Obesity & Metabolism. 2024-04-01

Journal Articles

Effects of Altering Levothyroxine (L-t4) Does on Energy Expenditure and Body Composition in L-t4 Treated Subjects
Mary H Samuels, Jonathan Q Purnell, Kathryn G Schuff, The Journal of Clinical Endocrinology and Metabolism

Press Mentions

Weight Loss Drugs Can Lead to Muscle Loss, Too. Is That a Bad Thing?May 20th, 2023
Poster AbstractsNovember 4th, 2020
The Best Food and Supplements for PMSMarch 12th, 2020
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Grant Support

Regulation Of Brain Signaling After Bariatric SurgeryNational Institute Of Diabetes And Digestive And Kidney Diseases2010
Structure And Regulation Of Ghrelin In ObesityNational Institute Of Diabetes And Digestive And Kidney Diseases2007–2010
Hypothalamic FMRI Response To NutrientsNational Institute Of Diabetes And Digestive And Kidney Diseases2006–2007
Regulation Of Cortisol Metabolism And Fat PatterningNational Institute Of Diabetes And Digestive And Kidney Diseases2004–2007
Hypothalamic FMRI Response To NutrientsNational Center For Research Resources2005
Change In Leptin As A Predictor Of Satiety With High Protein FeedingNational Center For Research Resources2005
Menopause, CPR, And Visceral FatNational Center For Research Resources2004–2005
Long Term Studies In Addison'S PatientsNational Center For Research Resources2004–2005
Ectopic Fat In Insulin Resistance And DiabetesNational Center For Research Resources2004–2005
Change In Leptin As A Predictor Of Satiety With High Protein Feeding.National Center For Research Resources2004
Sex Steroid, HPA Regulation, And Fat PatterningNational Institute Of Diabetes And Digestive And Kidney Diseases2002–2003
Cortisol, Central Obesity, And Insulin ResistanceNational Institute Of Diabetes And Digestive And Kidney Diseases2000–2003
Cortisol Production Rate &Insulin Resistance In ObesityNational Center For Research Resources2000–2002
Cortisol Production Rate And Insulin Resistance In ObesityNational Center For Research Resources1998–2000