If you have been reading about AOD-9604 and want a single page that covers the useful parts, this is it: definitions, context, how it is studied, and the questions that come up repeatedly.
Last reviewed on 2026-03-27. Where a claim depends on a specific study, the study is described rather than over-claimed.
Researchers have studied the fragment in cell and animal models to understand its metabolic actions. Some experiments report effects on fat breakdown and fat storage pathways, but the underlying mechanism remains incompletely defined. AOD-9604 does not appear to stimulate the same broad growth hormone receptor signaling as full-length hGH. Whether its observed activities arise from direct receptor interactions or downstream metabolic changes is an open question. Results from different assays are not always consistent.
AOD-9604 is a synthetic peptide modeled on the C-terminal region of human growth hormone. It corresponds to residues 176-191 of the 191-amino-acid hGH sequence. The fragment is not the full hormone and lacks the receptor-binding region associated with growth and metabolic effects of hGH. Researchers developed it to isolate a specific portion of hGH for study. Its exact sequence and length are often stated in peptide catalogs and patents.
The peptide is frequently described as a growth hormone fragment, although it is chemically distinct from full-length hGH. AOD-9604 contains 16 amino acids and includes two cysteine residues that can form an intramolecular disulfide bond. In solution, this structural feature can influence folding, aggregation, and stability. Published descriptions sometimes call it hGH 176-191 or AOD9604, with spacing and capitalization varying. Such naming differences can complicate literature searches, database entries, and product verification.
Laboratory studies have reported that AOD9604 can increase lipolysis and reduce lipid accumulation in fat cells. The precise molecular target remains uncertain, and the compound does not appear to activate the growth hormone receptor in the same way as full-length hGH. Proposed mechanisms include effects on beta-adrenergic signaling and enzymes involved in fatty acid synthesis, but these pathways are not firmly established. Because most evidence comes from cell and animal models, whether the same effects occur in humans is an open question.
Clinical development of AOD9604 included trials in people with obesity, but the results did not lead to approval as a prescription medicine in major markets. Interest later shifted to research settings and to unapproved products marketed for body composition. Regulatory agencies have questioned whether the peptide qualifies as a dietary ingredient, and some have issued warnings about its presence in supplements. Long-term human safety data are limited, and questions about efficacy, dosing, and target populations remain unresolved.
AOD9604 is a synthetic peptide modeled on the C-terminal region of human growth hormone. It corresponds to a short sequence near the end of the 191-amino-acid hormone, often described as residues 176–191 or a related fragment. Researchers designed it to separate metabolic effects from the growth-promoting actions of full-length growth hormone. Early work in the 1990s explored it as a candidate for weight and lipid disorders. It is not a naturally circulating hormone fragment produced in large amounts.
| Property | Value | Notes |
|---|---|---|
| Molecular class | Synthetic peptide | Derived from a fragment of human growth hormone |
| Sequence basis | hGH residues 176-191 | Commonly described as a 16-amino-acid fragment |
| Appearance | White to off-white powder | Typical for lyophilized research peptides |
| Solubility | Soluble in water or aqueous buffer | Exact solubility depends on pH and purity |
| Common synonyms | AOD9604; hGH 176-191 | Spelling and punctuation vary across sources |
Regulatory status: AOD-9604 is not approved as a therapeutic drug in the United States, European Union, or other major markets. It is listed by the World Anti-Doping Agency as a prohibited substance in sport, specifically under growth hormone fragments. Many jurisdictions restrict its sale for human consumption. Products marketed online may not meet pharmaceutical quality standards. The legal status varies by country and often depends on whether the material is presented as a research chemical, supplement, or drug.
Detection and characterization of AOD-9604 in research and anti-doping settings typically rely on mass spectrometry coupled with liquid chromatography. These methods can identify the peptide by its mass and fragmentation pattern. Immunoassays may also be used in some screening contexts, but they can cross-react with related peptides. Because the molecule is small and may be present at low concentrations, sample preparation and method validation are important. Confirmatory analysis usually requires comparison with a certified reference standard.
Several names appear in scientific and commercial settings. AOD9604 and AOD-9604 are development codes used interchangeably, while hGH fragment 176-191 describes the same region. The peptide includes a disulfide bond between two cysteine residues, which helps shape its three-dimensional structure. Different suppliers may provide acetate or other salt forms, and purity can vary. These differences matter because analytical tests and biological assays can respond to the specific form being studied.
Early interest in AOD-9604 centered on whether a fragment of human growth hormone could influence fat metabolism without the broader effects of the full hormone. Cell and animal studies reported changes in fat storage and breakdown. Human trials followed, but the results were not strong enough to secure regulatory approval. The compound remains available for laboratory research, and its clinical potential is still described as uncertain. Studies continue to examine its activity and safety profile.
AOD-9604 is a synthetic peptide that corresponds to a short section of human growth hormone. It is commonly identified as hGH fragment 176-191 because its sequence matches residues at the C-terminal end of the hormone. The molecule contains sixteen amino acids and is made by solid-phase peptide synthesis. Researchers study it for metabolic effects rather than for the growth-promoting actions associated with full human growth hormone. Its small size distinguishes it from the complete 191-amino-acid hormone.
cytosol Also hyaloplasm and groundplasm. The soluble aqueous phase of the cytoplasm, in which small particles such as ribosomes, proteins, nucleic acids, and many other molecules are suspended or dissolved, excluding larger structures and organelles such as mitochondria, chloroplasts, lysosomes, and the endoplasmic reticulum.
Ehrenfreund et al. (2001) found that amino acids in CI chondrites Ivuna and Orgueil were present at much lower concentrations than in CM chondrites (~30%), and that they had a distinct composition high in β-alanine, glycine, γ-ABA, and β-ABA but low in α-aminoisobutyric acid (AIB) and isovaline. This implies that they had formed by a different synthetic pathway, and on a different parent body from the CM chondrites.
=== Quantification of proteins and biomolecules === There is an increasing trend of using ICP-MS as a tool in speciation analysis, which normally involves a front end chromatograph separation and an elemental selective detector, such as AAS and ICP-MS. For example, ICP-MS can be combined with size exclusion chromatography and preparative native PAGE for identifying and quantifying metalloproteins in biofluids. Also the phosphorylation status of proteins can be analyzed. In 2007, a new type of protein tagging reagents called metal-coded affinity tags (MeCAT) were introduced to label proteins quantitatively with metals, especially lanthanides. The MeCAT labelling allows relative and absolute quantification of all kind of proteins or other biomolecules like peptides. MeCAT comprises a site-specific biomolecule tagging group with at least a strong chelate group which binds metals. The MeCAT labelled proteins can be accurately quantified by ICP-MS down to low attomol amount of analyte which is at least 2–3 orders of magnitude more sensitive than other mass spectrometry based quantification methods. By introducing several MeCAT labels to a biomolecule and further optimization of LC-ICP-MS detection limits in the zeptomol range are within the realm of possibility. By using different lanthanides MeCAT multiplexing can be used for pharmacokinetics of proteins and peptides or the analysis of the differential expression of proteins (proteomics) e.g. in biological fluids.
=== Geelong: 2005–2008 === At the start of 2006, he moved out of his Werribee home and moved to Geelong to live with teammates Corey Enright and Henry Playfair, with whom he would later go on to start a personal training organisation. He then set his sights on playing a senior game for Geelong and, after playing in the team that had earlier won the pre-season cup, he was selected to play in round 5. Only minutes into his debut, on 29 April against the Sydney Swans, he broke his arm and only played eight games for the year. After a solid pre-season, he played the first five games of 2007 before being omitted and then broke his wrist while playing for the Geelong VFL side on 8 July 2007. As a result, Prismall was unable to play for several weeks but recovered in time to play finals for the VFL side. In 2008, Prismall played in 11 home and away games and was selected to play in the qualifying final against St Kilda on 7 September 2008, which was to be his 25th game and finals debut. However, midway through the first quarter, he was stretchered off and did not return after landing awkwardly and badly injuring his right knee. It was later confirmed that he would have to undergo a full knee reconstruction after scans revealed a ruptured anterior cruciate ligament. After the 2008 season, Prismall declined the new two-year contract offered to him by Geelong and asked the club to be traded to get a better chance of playing more regularly in the AFL. On the final day of trade week, he was traded to the Essendon Football Club for national draft pick number 39.
Sources: en.wikipedia.org
== T == TI – Thermal ionization TIC - Total ion chromatogram TICC – Total ion current chromatogram, synonymous with TIC TLF – Time-lag focusing TMT – Tandem mass tags TOF-MS – Time-of-flight mass spectrometer
== History == The company (the Ranpak name standing for Random Packaging) traces its origins to a machine patented by George R. Johnson in 1970 that converted kraft paper into shock absorbing crinkled paper for use in cushioning auto-parts to prevent such items being damaged in shipment. Johnson, working with entrepreneur and engineer, Raymond Q. Armington, an inventor with several packing- and storage related patents to his name, incorporated the company in 1972. Armington became its chairman, a position he held until his death in 1993. In early 2002, David M. Gabrielsen was appointed president and CEO of Ranpak replacing Steven E. Armington, son of the co-founder. In December 1991 Ranpak opened its first foreign manufacturing center in Heerlen, Holland. The plant produced packing material and packing machines for the European market. Ranpak's acquisitions include:
=== NASA Visualization Explorer === On July 26, 2011, NASA released the NASA Visualization Explorer app for the iPad. The application delivers real-time satellite data, including movies and stills, of Earth, that enable users to learn about subjects such as climate change, Earth's dynamic systems and plant life on land and in the oceans. The content is accompanied by short descriptions about the data and why it is important.
Sources: en.wikipedia.org
=== Attitudes about groundwater contamination before 1978 === Groundwater has been a historically important source of water for public water systems, privately owned wells, and agricultural systems for generations. It had been commonly believed that as water traveled through soil, it was stripped of impurities before it could enter groundwater storages; as a result, there wasn't much general concern about contamination of the subsurface environment. In 1960, organic contaminants, including petroleum hydrocarbons, coal tar derivatives, synthetic detergents, and pesticides, had been noted in an extensive literature survey of groundwater contamination that provided the first indication of NAPLs in the subsurface. By the early 1970s, the technological development of gas chromatography provided a new method to detect groundwater contaminants imperceptible to the human senses. This development lead to the discovery and subsequent analysis of chlorinated solvents, one of the most deleterious forms of NAPL. It became understood that NAPLs are challenging both to detect and to remove from the subsurface. Because NAPLs participate in a biological chain of degradation, they produce intermediate chemicals that create particularly acute dangers for human health.
Anemia Elevated creatine kinase (CPK) Elevated creatinine Elevated transaminases Hypercapnia Hypercholesterolemia (elevated LDL) Hyperlipidemia Hypoglycemia Hyponatremia Hypoxia Leukopenia Respiratory acidosis
On 29 July, TTP attacked the Khazina Banda Police checkpost in Hangu District killing nine policemen and wounding 28, while Pakistani forces claimed to have killed 15 insurgents in retaliation. while four FC soldiers were killed in a TTP attack on an FC post in the Musa Darra area of Hassankhel. IGP KP stated that militants in southern district of KP were using weapons left by NATO during withdrawal from Afghanistan. On 30 July, police forces neutralized a bomb in Muslim Bagh area near Serai Naurang of Lakki Marwat District. Pakistani forces killed a TTP militant in Bajaur District and two in Kulachi area of Dera Ismail Khan District. Insurgents also blew up a government school in Bajaur District. On 31 July, an Army Major and five TTP insurgents were killed in a military operation in Razmak, 15 Hafiz Gul Bahadur Group insurgents were killed throughout Bannu and one in Loi Mamond area of Bajaur District. Two members of Ahmadzai Aman committee were killed and seven wounded in a militant quadcopter strike in Barganto area of Bannu District while two policemen were killed in an ambush in Chodhwan area of Dera Ismail Khan. On 1 August, CTD claimed to have captured 54 suspected terrorists in 419 operations throughout Punjab, belonging to ISIS, Al Qaeda, LeJ, SSP and TTP. On 2 August, 10 civilians and seven Policemen were killed and 34 were wounded in a suicide attack on Kabal Police Station in Swat District, the attack being claimed by TTP. Pakistan blamed Afghanistan for sheltering and facilitating the perpetrators.
In November 2023, supported by a decision from the Supreme Federal Court, the government announced that it will pay off, through extraordinary credit (which is not included in the spending ceiling) the stock of court orders left by the Jair Bolsonaro government, estimated at between 90 and 95 billion reais. According to the magazine Veja, Brazil recorded 2,273 corporate judicial recovery requests in 2024, the highest number in the historical series.
Sources: en.wikipedia.org
No, it is a synthetic peptide fragment corresponding to a small portion of hGH. It is not the full 191-amino-acid hormone and does not reproduce all of hGH's effects.
It is commonly described as a 16-amino-acid peptide based on residues 176-191 of human growth hormone. Some sources vary in notation, so checking the stated sequence is useful.
It is not typically described as a standalone natural hormone. The sequence is derived from the C-terminal region of human growth hormone, but the synthetic peptide is a laboratory-made construct.
AOD9604 is a synthetic peptide based on a C-terminal segment of human growth hormone. It is manufactured by chemical peptide synthesis rather than extracted from human tissue. The sequence is often described as hGH fragment 176–191 or a close variant.