Philosophy of Care
My goal is to thoughtfully listen to and evaluate a patient's complaints and develop an evidence-based diagnostic and therapeutic plan that aligns with the patients goals.
Dr. Schaefer focuses his clinical research on the utilization of non-invasive cardiac testing to diagnosis ischemic heart disease and pulmonary embolism.
Dr. Schaefer's laboratory studies involve the modulation of calcium uptake into mitochondria as a method of preventing and treating heart failure. These studies use transgenic mice with conditional knockout of the mitochondrial translocator protein.
M.D., UC Davis School of Medicine, Sacramento CA 1981
B.E., Mechanical Engineering, The Cooper Union, New York NY 1968
Internal Medicine, UC San Francisco Medical Center, San Francisco CA 1982-1984
Cardiovascular Medicine, University of Texas Southwestern Medical Center, Dallas TX 1984-1987
American Board of Internal Medicine, 1984
American Board of Internal Medicine, Cardiovascular Disease, 1987
American College of Cardiology
American Federation of Clinical Research
American Heart Association
American Society of Echocardiography
Society of Magnetic Resonance in Medicine
Honors and Awards
Best Doctors in America 2001-2012,
UC Davis School of Medicine Alumni Association Distinguished Alumnus Award, 2009
Select Recent Publications
Ma L, Lee BH, Clifton H, Schaefer S, Zheng J. Nicotinic acid is a common regulator of heat-sensing TRPV1-4 ion channels. Sci Rep. 2015 Mar 10;5:8906.
Clifton HL, Inceoglu B, Ma L, Zheng J, Schaefer S. TRPV1 channels are involved in niacin-induced cutaneous vasodilation in mice. J Cardiovasc Pharmacol. 2015 Feb;65(2):184-91.
Tate S, Griem A, Durbin-Johnson B, Watt C, Schaefer S. Marked elevation of B-type natriuretic peptide in patients with heart failure and preserved ejection fraction. J Biomed Res. 2014 Jul;28(4):255-61.
Ma L, Lee BH, Mao R, Cai A, Jia Y, Clifton H, Schaefer S, Xu L, Zheng J. Nicotinic acid activates the capsaicin receptor TRPV1: Potential mechanism for cutaneous flushing. Arterioscler Thromb Vasc Biol. 2014 Jun;34(6):1272-80.
Stripe B, Rechenmacher S, Jurewitz D, Lee C, Schaefer S. The diagnostic yield of cardiac catheterization in low-risk troponinemia. JAMA Intern Med. 2013 Dec 9-23;173(22):2088-90.
Browning AC, Schaefer S: What Lies Beneath – Posterior ST Elevation Myocardial Infarction With Underlying Right Ventricular Paced Rhythm. J Experimental and Clinical Cardiology. 2013;(18)(1):e55-e56.
Inceoglu AB, Clifton HL, Yang J, Hegedus C, Hammock BD, Schaefer S: Inhibition of epoxide hydrolase prevents niacin-induced flushing in mice. J Cardiovasc Pharmacology. 2012;60(1):70-75.