regulatory status comes up often in conversation and rarely with the context attached. Here we lay out the basics in order, then work through the practical considerations.
Last reviewed on 2025-12-22. Where a claim depends on a specific study, the study is described rather than over-claimed.
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.
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.
Regulatory interest in AOD-9604 increased after high-profile anti-doping cases involving peptide products. In some cases, the substance was supplied under alternative names or in compounded preparations, complicating traceability. Sports tribunals and anti-doping panels have discussed whether the peptide was explicitly banned at the time of use, leading to clarifications by the World Anti-Doping Agency. For consumers and researchers, the legal status can vary by jurisdiction, and products marketed as research chemicals may lack independent quality verification.
AOD-9604 is listed as a prohibited substance in sport by the World Anti-Doping Agency. It falls under the peptide hormones, growth factors, related substances, and mimetics class on the prohibited list. Anti-doping organizations treat its presence in an athlete's sample as an adverse finding unless a therapeutic use exemption applies. The prohibition reflects concerns about performance enhancement in competitive settings and the difficulty of distinguishing exogenous peptide use from endogenous hormone fragments.
| 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 varies by country. In the United States, AOD-9604 is not approved as a prescription drug. It is sometimes sold as a research chemical or dietary supplement, though such marketing may fall outside legal frameworks. The World Anti-Doping Agency prohibits its use in sport. Researchers must obtain it through legitimate suppliers and follow institutional rules. Its legal classification continues to evolve as authorities increasingly assess peptide products more broadly.
AOD-9604 is a synthetic peptide whose sequence matches the C-terminal fragment of human growth hormone, specifically residues 176 through 191. This region differs from the full hormone in its receptor interactions. The peptide is not a growth hormone secretagogue and does not bind the growth hormone receptor in the same manner. Researchers have examined it for effects on lipid metabolism, but its exact pharmacological profile remains an active area of study.
Research interest in AOD-9604 often focuses on whether it can influence lipid metabolism without the growth-promoting or glucose-related effects of full-length hGH. This question remains unresolved, and findings depend on model, dose, and measurement method. Some reviews treat the peptide as a historical obesity candidate rather than an active therapeutic. Others cite it in discussions of peptide fragments, metabolic signaling, and performance-enhancing substances. Clear conclusions are limited by the small number of rigorous, independent human studies.
AOD-9604 has been investigated primarily as a potential treatment for obesity and related metabolic conditions. Early laboratory work examined its effects on fat cells, and later studies moved into animal models and human clinical trials. Some trials reportedly reached Phase II, but the program did not lead to an approved medicine. Published summaries often note that weight-loss results were modest or inconsistent. The full trial data are not all publicly available in detail.
Regulatory treatment of AOD-9604 has varied. In sports anti-doping, the peptide became widely discussed during a 2013 investigation into an Australian professional sports club. Authorities at the time debated whether it fell under prohibitions on growth hormone and related substances. Later clarifications and updated lists have addressed the compound in different ways. Anyone seeking current status should consult the latest applicable rules, and commercial supply for human use is not authorized in major markets.
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.
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.
==== Renovation ==== In 1983, in an attempt to draw crowds to the park and raise money for continued maintenance, the BPRC proposed leasing Bryant Park from the city, renovating it, and building a café in the park. The $18 million renovation was to be executed by an alliance between the BPRC, NYPL, and NYC Parks. Restaurateur Warner LeRoy was to operate the eatery, and he planned to build an 80-foot-tall (24 m), 10,500-square-foot (980 m2) glass café on the park's east side adjacent to the library. In addition, the park would include four smaller food kiosks, a reflecting pool and water fountain, and a dedicated security team.
==== MeSH D12.125.119 – amino acids, dicarboxylic ==== MeSH D12.125.119.075 – 2-aminoadipic acid MeSH D12.125.119.170 – aspartic acid MeSH D12.125.119.170.150 – d-aspartic acid MeSH D12.125.119.170.275 – isoaspartic acid MeSH D12.125.119.170.400 – n-methylaspartate MeSH D12.125.119.170.700 – potassium magnesium aspartate MeSH D12.125.119.270 – carbocysteine MeSH D12.125.119.307 – cystathionine MeSH D12.125.119.369 – cystine MeSH D12.125.119.450 – glutamic acid MeSH D12.125.119.450.150 – 1-carboxyglutamic acid MeSH D12.125.119.450.400 – glutamates MeSH D12.125.119.450.400.700 – polyglutamic acid MeSH D12.125.119.450.400.800 – sodium glutamate MeSH D12.125.119.658 – homocystine
== Definition == Polycythemia is defined as serum hematocrit (Hct) or hemoglobin (HgB) exceeding normal ranges expected for age and gender, typically Hct >49% in healthy adult men and >48% in women, or HgB >16.5 g/dL in men or >16.0 g/dL in women. The definition is different for neonates and varies by age in children.
If the target DNA contains an allele complementary to the probe's 3’ base, the target DNA will completely hybridize to the probe, allowing DNA polymerase to extend from the 3’ end of the probe. This is detected by the incorporation of the fluorescently labeled dNTPs onto the end of the probe. If the target DNA does not contain an allele complementary to the probe's 3’ base, the target DNA will produce a mismatch at the 3’ end of the probe and DNA polymerase will not be able to extend from the 3' end of the probe. The benefit of the second approach is that several labeled dNTPs may get incorporated into the growing strand, allowing for increased signal. However, DNA polymerase in some rare cases, can extend from mismatched 3’ probes giving a false positive result. A different approach is used by Sequenom's iPLEX SNP genotyping method, which uses a MassARRAY mass spectrometer. Extension probes are designed in such a way that 40 different SNP assays can be amplified and analyzed in a PCR cocktail. The extension reaction uses ddNTPs as above, but the detection of the SNP allele is dependent on the actual mass of the extension product and not on a fluorescent molecule. This method is for low to medium high throughput, and is not intended for whole genome scanning. The flexibility and specificity of primer extension make it amenable to high throughput analysis. Primer extension probes can be arrayed on slides allowing for many SNPs to be genotyped at once.
During the 2025 legislative session, Moore introduced the Expungement Reform Act, a bill that would expand criminal record expungement options for violations of parole and probation. He also expressed support for state efforts aimed at "supporting an elevating our men and boys" by removing barriers that keep men out of the workforce, including those returning from incarceration. In April 2025, Moore signed the Expungement Reform Act and the Second Look Act—which allows people incarcerated for at least 20 years for crimes they committed between the ages of 18 and 25 to petition for a reduced sentence—into law. In September 2025, Moore announced that his administration would close the Maryland Correctional Institution - Jessup and transfer prisoners held there to other prisons in the state, saying that the facility would've needed $200 million in renovations to continue operations. In January 2026, he proposed a pause on funding for the construction of the Baltimore Therapeutic Treatment Center, a new jail in Baltimore designed for people who have substance use issues and are facing criminal charges. In May 2026, Moore signed into law the Youth Charging Reform Act, which removes first-degree assault and several handgun offenses from the list of offenses that result in minors being automatically charged as adults.
Sources: en.wikipedia.org
Blue tangs experience three different social modes: territorial, schooling, and wandering. Blue tangs in non-territorial modes form schools and wander, while territorial blue tangs do not. Territoriality reduces competition for food resources because one individual claims both a territory and its resources. Additionally, schooling allows fish to better overcome food defense by others, and wandering allows for individual movement to feeding areas, cleaning stations, and other resources. Social behaviors are affected by outside conditions such as damselfish density, conspecific population density, and life history stage. Those in the territorial mode are aggressive and actively chase intruding blue tangs. They swim slower and feed more frequently than non-territorial blue tangs. Schooling fish form compact groups with other blue tangs in addition to other species. Territorial blue tangs are found most often in the reef flat zone (sandy-bottomed with rocks or coral) and are rarely found in the spur zone (low coral ridges) or groove zone (sandy bottom channels). Territoriality prevalence decreases with increasing damselfish population, and the time of day also does not affect territoriality prevalence. Fish in schooling mode swim fast, eat at intermediate rates, and are not aggressive, even though they are often chased by damselfish. Schooling is most prevalent in areas with high damselfish densities such as the groove zone, spur zone, and crest zone (shallow reef area), while schools are most prevalent near midday. Blue tangs are often seen schooling with midnight parrotfish.
=== Solution === Many growers resorted to their own methods in attempt to resolve the issue. Chemicals and pesticides were used to no avail. In desperation, some growers positioned toads under each vine, and others allowed their poultry to roam free in the hope they would eat the insects. None of these methods were successful. After Charles Valentine Riley, Missouri's state entomologist, confirmed Planchon's theory, Leo Laliman and Gaston Bazille, two French wine growers, both suggested the possibility that if vinifera vines could be combined, by means of grafting, with the aphid-resistant American vines, then the problem might be solved. Thomas Volney Munson was consulted and provided native Texan rootstocks for grafting. Because of Munson's role, the French government in 1888 sent a delegation to Denison, Texas, to confer on him the French Legion of Honor Chevalier du Mérite Agricole. Another viticulturist, Hermann Jaeger of Neosho, Missouri, was pivotal in the rescue of the French vineyards, as well. Jaeger working with the Missouri state entomologist George Hussman, had already raised vines with resistance to the pest. Indeed, several of the rootstalk varietals T.V. Munson had developed in Texas (Mrs Munson, Muench, and Neva Munson) were grafts with the hardy Neosho hybrids Jaeger had developed in Missouri. Jaeger exported 17 boxcars of his resistant rootstock to France.
Chuck steak is a cut of beef and is part of the sub-prime cut known as the chuck. The typical chuck steak is a rectangular cut, about 2.5 cm (1 inch) thick and containing parts of the shoulder bones of cattle, and is often known as a "7-bone steak," as the shape of the shoulder bone in cross-section resembles the numeral '7'. This cut is usually grilled or broiled; a thicker version is sold as a "7-bone roast" or "chuck roast" and is usually cooked with liquid as a pot roast. The bone-in chuck steak or roast is one of the more economical cuts of beef. In the United Kingdom, this part is commonly referred to as "braising steak". It is particularly popular for use as ground beef for its richness of flavor and balance of meat and fat.
== Channel mix == In practice, many organizations use a mix of different channels; a direct sales force may call on larger customers. This may be complemented with other agents to cover smaller customers and prospects. When a single organization uses a variety of different channels to reach its markets, this is known as a multi-channel distribution network. In addition, online retailing or e-commerce is leading to disintermediation, the removal of intermediaries from a supply chain. Retailing via smartphone or m-commerce is also a growth area.
Other uses that have been reported for this bacterium include the production of pickled vegetables, beer or wine, some breads, and other fermented foodstuffs like soymilk kefir, buttermilk, and others. L. lactis is one of the best characterized low GC Gram positive bacteria with detailed knowledge on genetics, metabolism and biodiversity. L. lactis is mainly isolated from either the dairy environment, or plant material. Dairy isolates are suggested to have evolved from plant isolates through a process in which genes without benefit in the rich milk were lost or downregulated. This process, called genome erosion or reductive evolution, has been described in several other lactic acid bacteria. The proposed transition from the plant to the dairy environment was reproduced in the laboratory through experimental evolution of a plant isolate that was cultivated in milk for a prolonged period. Consistent with the results from comparative genomics (see references above), this resulted in L. lactis losing or downregulating genes that are dispensable in milk and the upregulation of peptide transport. Hundreds of novel small RNAs were identified by Meulen et al. in the genome of L. lactis MG1363. One of them, LLnc147, was shown to be involved in carbon uptake and metabolism.
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.
Yes, the World Anti-Doping Agency classifies AOD-9604 as a prohibited peptide hormone and related substance. Its use by athletes is banned under the relevant anti-doping code.