Fig. 1From: Nuclear Magnetic Resonance Studies of Glucose Metabolism in Non-Insulin-Dependent Diabetes Mellitus Subjects Typical course of 13 C NMR spectra of muscle glycogen in a representative normal subject during a hyperglycemic-hypersulinemic clamp The C1 peak of glycogen appears at 100.4 ppm. Adapted from Shulman et al., N. Engl. J. Med. 322: 223–228. Copyright 1990. Massachusetts Medical Society. All rights reserved.Back to article page