hGH Fragment 176-191
preclinicalAlso known as: HGH Frag 176-191
**Mechanism of Action** hGH Fragment 176-191 is a synthetic peptide corresponding to the C-terminal region (amino acids 176–191) of human growth hormone. It is proposed to selectively stimulate lipolysis by binding to a putative GH receptor variant in adipose tissue, triggering intracellular signaling cascades (e.g., cAMP/PKA pathway) that enhance fat breakdown. Crucially, this fragment lacks the N-terminal domain required for IGF-1 induction, thereby avoiding the mitogenic and anabolic effects associated with full-length GH. Its mechanism is independent of IGF-1 signaling, focusing on direct lipid mobilization. **Key Research Findings** Preclinical studies (21 PubMed-indexed references) demonstrate dose-dependent reductions in adipose tissue mass and serum triglycerides in rodent models, with no observed effects on blood glucose or IGF-1 levels. In vitro assays confirm increased glycerol release from isolated adipocytes. However, human data remain absent; all evidence is derived from animal or cell-based experiments. No pharmacokinetic or long-term safety profiles have been established in humans. **Clinical Relevance** Despite interest in its potential as an anti-obesity agent, hGH Fragment 176-191 remains strictly preclinical. No clinical trials have been conducted, and its efficacy, safety, and optimal dosing in humans are unknown. Regulatory approval has not been sought. The peptide is not indicated for any medical condition, and its use outside controlled research settings is unsupported by evidence. For research purposes only — not medical advice.
Key data
C80H127N23O24S2Research & studies
Peptides like BPC-157, TB-500, and GHK-Cu promote angiogenesis, extracellular matrix remodeling, and fibroblast activation.; Growth hormone secretagogues (e.g., ipamorelin, CJC-1295) activate IGF-1 signaling and satellite cell repair.; Neuroactive peptides (e.g., selank, semax, dihexa) enhance BDNF and HGF/c-Met pathways for neuroplasticity.; There is a current lack of clinical trials despite promising preclinical studies.
In silico analysis suggested that adding hGH fragment 176-191 peptide enhances doxorubicin binding to multiple breast cancer protein targets.; Synthesized dual-loaded chitosan nanoparticles had clinically favorable particle size, polydispersity index, and zeta potential.; Dual-loaded chitosan nanoparticles demonstrated greater anti-proliferative activity against MCF-7 breast cancer cells than doxorubicin-loaded chitosan nanoparticles alone.
Mean gross morphological and histopathological scores were significantly lower in the AOD9604+HA group than in HA or AOD9604 alone groups.; The lameness period was significantly shorter in the AOD9604+HA group compared to all other groups.; AOD9604 alone enhanced cartilage regeneration, but combined with HA showed superior efficacy.
AOD9604 is a banned peptide that mimics growth hormone's lipolytic effects without diabetogenic side effects.; The validated urine detection method has a limit of detection of 50 pg/mL with good linearity, precision (<20%), specificity, and recovery (62%).; Six potential metabolites were identified after incubation in serum and urine.; A stable serum metabolite (CRSVEGSCG) was found to be more persistent than the parent compound, potentially improving detection.
The number and diversity of performance-enhancing substances is growing due to new pharmaceuticals and black-market designer drugs.; Analytical strategies for detecting doping agents in blood or urine include chromatographic-mass spectrometric and alternative methods.; Substances covered include peptidic (e.g., modified IGF-1, TB-500, growth hormone releasing peptides) and non-peptidic (e.g., SARMs, HIF stabilizers, siRNA) compounds, plus cobalt.; Detection approaches must consider physicochemical properties, concentration levels, and metabolism of each substance.
Obesity leads to comorbidities like type 2 diabetes, hypertension, and coronary heart disease, contributing to cardiovascular mortality.; Diet and lifestyle changes alone often result in small weight loss, prompting the use of anti-obesity medications.; Anti-obesity therapy is indicated for individuals with BMI >30 kg/m2 or 25–30 kg/m2 with co-morbid conditions.; Recent medications target biological mechanisms to suppress appetite and nutrient absorption, including drugs like phentermine/topiramate and lorcaserin.
Sibutramine reduces weight by 4-5 kg but increases heart rate and blood pressure.; Orlistat reduces weight by about 3 kg and lowers type 2 diabetes risk but causes gastrointestinal side effects.; Rimonabant induces 4-5 kg weight loss and improves metabolic profiles but increases anxiety and depression.; New drugs in development target central neurotransmitters, neuropeptides, peripheral satiety signals, and thermogenesis.
Frequently asked questions
What is hGH Fragment 176-191?
**Mechanism of Action** hGH Fragment 176-191 is a synthetic peptide corresponding to the C-terminal region (amino acids 176–191) of human growth hormone. It is proposed to selectively stimulate lipolysis by binding to a putative GH receptor variant in adipose tissue, triggering intracellular signaling cascades (e.g., c
How does hGH Fragment 176-191 work?
C-terminal fragment of human growth hormone studied for lipolytic activity independent of IGF-1 signaling.
What is the research status of hGH Fragment 176-191?
hGH Fragment 176-191 is currently classified as preclinical, with 23 research references on record. This is for research purposes only and is not medical advice.
What is the molecular weight of hGH Fragment 176-191?
hGH Fragment 176-191 has a molecular weight of approximately 1859.1 g/mol (formula C80H127N23O24S2).
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