Metabolic
Metabolic Peptides — Appetite Signaling, Fat Metabolism, and Exercise Mimetics
A guide to metabolic research compounds covering amylin signaling, fat metabolism, AMPK, and exercise-mimetic pathways.
Three Approaches to Metabolic Research
The OSYRIS Metabolic category includes compounds studied in appetite signaling, fat metabolism, and exercise-mimetic research.
Approach 1: Amylin Signaling
Cagrilinitide is studied as an amylin receptor agonist in appetite and meal-size regulation research.
Approach 2: Direct Fat Metabolism
AOD-9604 takes a completely different approach to metabolic research. Rather than modulating appetite through receptor signaling, it directly stimulates fat breakdown (lipolysis) and inhibits fat formation (lipogenesis) in adipose tissue. It's the C-terminal fragment of growth hormone — the specific piece responsible for GH's fat-metabolizing effects, isolated from all other GH activities.
What makes this approach distinct: AOD-9604 doesn't affect appetite, insulin, glucose, or IGF-1. It's a direct intervention on fat tissue metabolism through beta-3 adrenergic receptors. This makes it a clean tool for studying fat metabolism independent of appetite and glucose variables.
Approach 3: Exercise-Mimetic Metabolism
SLU-PP-32 and MOTS-C (cross-listed from Longevity) represent pharmacological tools for studying exercise-induced metabolic adaptation without physical activity:
- SLU-PP-32 activates ERR (estrogen-related receptors) — nuclear receptors that drive exercise-induced gene expression programs including mitochondrial biogenesis and fatty acid oxidation.
- MOTS-C activates AMPK — the cell's energy sensor that triggers the metabolic cascade normally activated by exercise.
Different targets (ERR vs AMPK), same research question: which exercise benefits are mediated by each specific pathway?
The Complete Metabolic Research Toolkit
| Research Question | Best Compound(s) |
|---|---|
| Amylin receptor signaling | Cagrilinitide |
| Direct fat metabolism (no appetite variable) | AOD-9604 |
| AMPK-mediated exercise effects | MOTS-C |
| ERR-mediated exercise effects | SLU-PP-32 |
| Exercise mimetic comparison | MOTS-C vs SLU-PP-32 |
Evidence Strength by Compound
Evidence varies by compound, model, and endpoint. A result from one study does not establish the same effect across other research systems.
Researchers should calibrate their expectations to the evidence level of each compound.
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Primary Compound
Cagrilinitide
Cagrilinitide is a synthetic, long-acting peptide analogue of amylin developed for research applications. It incorporates targeted amino acid substitutions and fatty acid acylation to enhance molecular stability and receptor interaction duration. This compound is supplied exclusively for laboratory research and experimental investigation.
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Primary Compound
AOD-9604
AOD-9604 is a synthetic peptide fragment of human growth hormone (hGH), comprising amino acids 176–191. Designed to focus on fat metabolism without affecting IGF-1 or glucose levels, it is widely studied in metabolic and obesity-related research. AOD-9604 is intended exclusively for controlled laboratory use in scientific research.
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Primary Compound
SLU-PP-32
SLU-PP-32 is offered as an experimental ligand within the emerging family of estrogen-related receptor (ERR) agonist tool compounds. It is strictly for exploratory research on nuclear receptor signaling, mitochondrial regulation, and oxidative metabolism.
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Common Questions
What is an exercise mimetic?
A compound that activates some of the same metabolic pathways as exercise. MOTS-C (AMPK) and SLU-PP-32 (ERR) are exercise mimetics. They don't replace exercise — they help researchers study which exercise benefits are pathway-specific.
