Monday, October 22, 2018

Study Links: MK-677, an orally active growth hormone secretagogue


1996 Dec;81(12):4249-57.

Stimulation of the growth hormone (GH)-insulin-like growth factor I axis by daily oral administration of a GH secretogogue (MK-677) in healthy elderly subjects.




https://www.ncbi.nlm.nih.gov/pubmed/8954023


MK-677 produced significant increases in fasting glucose (5.4 +/- 0.3 to 6.8 +/- 0.4 mmol/L at 4 weeks; P < 0.01 vs. baseline) and IGF-binding protein-3. Circulating cortisol concentrations did not change, and PRL concentrations increased 23%, but remained within the normal range. Once daily treatment of older people with oral MK-677 for up to 4 weeks enhanced pulsatile GH release, significantly increased serum GH and IGF-I concentrations, and, at a dose of 25 mg/day, restored serum IGF-I concentrations to those of young adults.


=================================================================


1998 Feb;83(2):320-5.

MK-677, an orally active growth hormone secretagogue, reverses diet-induced catabolism.



=================================================================


1998 Feb;83(2):362-9.

Two-month treatment of obese subjects with the oral growth hormone (GH) secretagogue MK-677 increases GH secretion, fat-free mass, and energy expenditure.



=================================================================

1997 Oct;82(10):3455-63.

Oral administration of growth hormone (GH) releasing peptide-mimetic MK-677 stimulates the GH/insulin-like growth factor-I axis in selected GH-deficient adults.