Effects of 24 Hr Mk 751 Infusion on Gh Secretion and Gh Response in Ghrh

Abstract

This study will determine whether a continuous 24h infusion of MK-751 (a GHRP-mimetic) will result in increased or attenuated GH secretion and whether GH response to an IV dose of GHRH at the end of the infusion will be enhanced. Prolactin and cortisol will also be measured to determine specificity of action of MK-751 when chronically administered. Study completed and published. Six older adults (4 men, 2 women) received 12 h and 24 h iv infusions of a GHRP mimetic (L-692,429, developed by Merck Laboratories). Pulsatile GH secretion was enhanced (by increasing the mass of GH secreted but not number of secretory pulses), with a compensatory hyposecretion after cessation of the infusion. GH response to GHRH was also enhanced.

Funding Agency

• Agency: National Institute of Health (NIH)
• Institute: National Center for Research Resources (NCRR)
• Type: General Clinical Research Centers Program (M01)
• Project #: 5M01RR000847-25
• Application #: 2787342
• Budget Start: 1997-10-01
• Budget End: 1998-09-30
• Support Year: 25
• Fiscal Year: 1998

Institution

• Name: University of Virginia
• DUNS #: 001910777
• City: Charlottesville
• State: VA
• Country: United States
• Zip Code: 22904

Publications

Campbell, Garland A; Patrie, James T; Gaylinn, Bruce D et al. (2018) Oral ghrelin receptor agonist MK-0677 increases serum insulin-like growth factor 1 in hemodialysis patients: a randomized blinded study. Nephrol Dial Transplant 33:523-530

Malin, Steven K; Rynders, Corey A; Weltman, Judy Y et al. (2016) Endothelial function following glucose ingestion in adults with prediabetes: Role of exercise intensity. Obesity (Silver Spring) 24:1515-21

Rynders, Corey A; Weltman, Judy Y; Malin, Steven K et al. (2016) Comparing Simple Insulin Sensitivity Indices to the Oral Minimal Model Postexercise. Med Sci Sports Exerc 48:66-72

Hu, Yinin; Kim, Helen; Blackwell, Christopher M et al. (2015) Long-term outcomes of helper peptide vaccination for metastatic melanoma. Ann Surg 262:456-64; discussion 462-4

Marozkina, Nadzeya V; Wang, Xin-Qun; Stsiapura, Vitali et al. (2015) Phenotype of asthmatics with increased airway S-nitrosoglutathione reductase activity. Eur Respir J 45:87-97

Nass, Ralf; Nikolayev, Alexander; Liu, Jianhua et al. (2015) The level of circulating octanoate does not predict ghrelin O-acyl transferase (GOAT)-mediated acylation of ghrelin during fasting. J Clin Endocrinol Metab 100:E110-3

Argo, Curtis K; Patrie, James T; Lackner, Carolin et al. (2015) Effects of n-3 fish oil on metabolic and histological parameters in NASH: a double-blind, randomized, placebo-controlled trial. J Hepatol 62:190-7

Chyun, Deborah A; Wackers, Frans J Th; Inzucchi, Silvio E et al. (2015) Autonomic dysfunction independently predicts poor cardiovascular outcomes in asymptomatic individuals with type 2 diabetes in the DIAD study. SAGE Open Med 3:2050312114568476

Swift, Damon L; Weltman, Judith Y; Patrie, James T et al. (2014) Predictors of improvement in endothelial function after exercise training in a diverse sample of postmenopausal women. J Womens Health (Larchmt) 23:260-6

Rembold, Christopher M; Suratt, Paul M (2014) Airway turbulence and changes in upper airway hydraulic diameter can be estimated from the intensity of high frequency inspiratory sounds in sleeping adults. J Physiol 592:3831-9