GHRL and chronic obstructive pulmonary disease: Comparable results with i.v. ghrelin (single-dose bolus, daily for 3 weeks, or i.v. infusion) were reported in patients with chronic heart failure (Nagaya et al, 2001b, 2004), COPD (Nagaya et al, 2005), or diabetic gastroparesis (Murray et al, 2005).