Research record
Overview
Compound name: Human Growth Hormone 191 amino acids
Common names: HGH 191 aa; Somatropin
Compound classification: Recombinant protein hormone
Brief factual description:
HGH 191 aa is the bioidentical recombinant form of endogenous human growth hormone, consisting of the full 191–amino acid sequence naturally produced by the anterior pituitary. It regulates growth, metabolism, cellular repair, and insulin-like growth factor-1 (IGF-1) production.
Mechanism of Action
Primary biological targets: Growth hormone receptor (GHR)
Affected systems: Endocrine, musculoskeletal, metabolic
Receptor selectivity:
High specificity for GHR
Downstream signaling effects:
Activation of JAK2–STAT pathway
Induction of hepatic and peripheral IGF-1 production
Increased protein synthesis
Enhanced lipolysis
Reduced glucose uptake in adipose tissue




