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Identity And Research Background — Background and Details

By Editorial Desk · published 2026-06-20 · last reviewed 2026-07-21 · Info

The short version of hGH fragment fits in a sentence. The long version — which is the one that helps — is below.

Reviewed 2026-07-21. Anything still debated is marked as such rather than presented as settled.

Identity And Research Background

AOD-9604 is a synthetic peptide whose sequence is modeled on the C-terminal region of human growth hormone. Published descriptions commonly place it as a modified fragment corresponding to hGH amino acids 176–191, with a tyrosine residue added or retained at the N-terminus to support detection and handling. It is not intact growth hormone and lacks the full receptor-binding architecture of the parent protein. The molecule was developed as a research candidate for metabolic studies rather than as a replacement for growth hormone therapy. Its identity is defined by its amino acid sequence rather than by any single commercial preparation.

AOD-9604 drew attention in the 1990s and 2000s as a potential anti-obesity agent. Early work explored both injectable and oral routes, which is unusual for a peptide of this size. Animal studies reported changes in fat metabolism without the growth-promoting or insulin-like effects associated with full-length growth hormone. Subsequent human trials produced mixed or modest results, and the compound did not obtain regulatory approval for weight management in major markets. It remains known mainly through research literature, sports anti-doping listings, and non-approved supplement advertising.

AOD-9604 is prohibited in sport by the World Anti-Doping Agency under the peptide hormone class. Its presence in a sample can be detected through mass spectrometry-based methods, although the exact assay depends on the laboratory. In research settings, material is often supplied as a lyophilized powder for reconstitution. Buyers and researchers should note that products labeled AOD-9604 may vary in purity and actual peptide content. Analytical certificates and independent testing are common ways to verify identity, but no global harmonized standard exists for all commercial lots.

Identity and Research Origin

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.

Development of AOD-9604 began in the 1990s as scientists sought to isolate metabolic effects of growth hormone without its growth-promoting actions. Early laboratory work focused on fat cells and animal models. Several human trials followed, examining changes in body composition and fat mass. Results have been mixed, and the peptide has not progressed to widespread clinical approval. Interest continues in research settings, particularly regarding its mechanism and potential metabolic targets.

Aod-9604 at a glance

PropertyValueNotes
Molecular classSynthetic peptideFragment analog of human growth hormone
Sequence basishGH 176–191 regionModified C-terminal fragment
Common synonymsAOD-9604; AOD9604; hGH fragmentResearch and trade names vary
Regulatory statusNot approved as a drugProhibited in competitive sport
Research codeAOD9604Used in scientific and patent literature

Further detail

NCI-designated Cancer Centers are a group of 74 cancer research institutions in the United States supported by the National Cancer Institute. Three designations are recognized: Comprehensive Cancer Centers, Clinical Cancer Centers and Basic Laboratory Cancer Centers. As of May 20, 2026, there are 8 Clinical Cancer Centers, 58 Comprehensive Cancer Centers and 8 Basic Laboratory Cancer Centers. Most are associated with a university. Receiving the NCI-designation places cancer centers among the top 4% of the approximately 1,500 cancer centers in the United States. In 2021, more than 411,000 new patients were enrolled in a clinical trial at an NCI-designated Cancer Center.

AZD-7268 is a δ-opioid receptor agonist which was under development for the treatment of major depressive disorder but was never marketed. It is taken by mouth. The affinity (Ki) of AZD-7268 for the δ-opioid receptor was reported to be 2.7 nM and its selectivity for this receptor over the μ-opioid receptor was reported to be 2,000-fold. No animal studies of AZD-7268 appear to have been published. In addition to putative antidepressant effects, AZD-7268 might have anxiolytic effects. Structurally, AZD-7268 was derived from SNC-80. Dose-limiting side effects of AZD-7268 in clinical trials included syncope (fainting), hypotension (low blood pressure), and dizziness. AZD-7268 was first described by 2007. Its development was discontinued in 2010. It reached phase 2 clinical trials prior to the discontinuation of its development. No reason was given for the discontinuation of its development. However, the drug was found to be ineffective for major depressive disorder in a phase 2 clinical trial of 231 participants comparing it with placebo and escitalopram. The drug was under development by AstraZeneca.

Training, HRD and R&D Committee. Committee for Strengthening Supply Chain & Logistics. Application of Non-conventional Energy Sources in Cold Chain Infrastructure. Technical Specification, Standards, Test Laboratory and Product Certification Committee. These committees contribute towards this nodal body's functioning along its road-map.

Sources: en.wikipedia.org

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Supporting material

In October 2023, Galloway promoted the false claim that Volodymyr Zelenskyy's wife Olena Zelenska had spent $1 million on jewelry in New York City, during the time of which Zelenska was actually in Canada. Galloway said that his source for the story was The Nation, but the publication that had actually reported this claim was a Nigerian newspaper of the same name. Regarding the Crocus City Hall attack in Russia, Galloway said he had "four pieces of evidence that lead [him] to believe that the United States, its NATO allies, and their puppet stump state Ukraine are, in fact, responsible for this massacre". In October 2024, at the 16th BRICS summit, Galloway criticised the British press at the event for "hating Russia" and suggested there was more media freedom in Russia than in Britain. In June 2025, Galloway participated as a speaker at the Forum of the Future 2050 in Moscow, a conference organised by tycoon Konstantin Malofeev. The guest list also included Elon Musk's father, Errol Musk, Russia's foreign minister Sergey Lavrov, economist Jeffrey Sachs and conspiracy theorist Alex Jones, among others. After going into self-imposed exile in Russia, Galloway said on his talk show that he supports Russia's war against Ukraine, calling it anti-imperialist and anti-colonialist. He praised Russia's military after it struck Yahodyn, on the Polish border, with a drone.

== Weaknesses == The assay is limited to using existing restriction sites in the region of interest, and methylation that does not occur in the context of a specific restriction site will not be assayed. Incomplete digestion by restriction enzymes after PCR can confound the analysis: incomplete digestion would suggest lack of DNA methylation (if cutting with a methylation-sensitive enzyme such as HpaII). It is also known that BstUI can cut at unconverted sites, leading to overestimation of methylation levels and so the use of HpaII is often needed. In complex samples, cell-type heterogeneity can confound the analysis since the DNA is not being sequenced, heterogeneity in sequences from different cells in the sample (i.e. different cell populations within a tumor) that have acquired mutations in the interrogated region, such as changing the CG dinucleotide to CA or CT, would result in loss of the restriction site giving rise to an apparently methylated region due to lack of digestion. This would skew the quantification of DNA methylation levels in a given sample.

antioncogene A gene which helps to regulate cell growth and suppress tumors when functioning correctly, such that its absence or malfunction can result in uncontrolled cell growth and possibly cancer. Compare oncogene.

Left-wing groups which did not agree to the centralisation and abandonment of the soviets by the Bolshevik Party led left-wing uprisings against the Bolsheviks. Such groups included anarchists, Left Socialist-Revolutionaries, Mensheviks and Socialist-Revolutionaries. Amidst this left-wing discontent, the most large-scale events were the workers' Kronstadt rebellion and the anarchist-led Makhnovshchina in Ukraine. In 1922, the 4th World Congress of the Communist International took up the policy of the united front, urging Communists to work with rank and file social democrats while remaining critical of their party leaders, whom they criticised for betraying the working class by supporting the war efforts of their respective capitalist classes. For their part, the social democrats pointed to the dislocation and chaos caused by revolution and later the growing authoritarianism of the Communist parties after they achieved power. When the Communist Party of Great Britain applied to affiliate with the Labour Party in 1920, it was turned down. On seeing the Soviet Union's growing coercive power in 1923, a dying Lenin stated that Russia had reverted to a "bourgeois tsarist machine ... barely varnished with socialism." After Lenin's death in January 1924, the Communist Party of the Soviet Union, increasingly falling under the control of Joseph Stalin, rejected the theory that socialism could not be built solely in the Soviet Union in favour of the concept of socialism in one country.

Sources: en.wikipedia.org

Supporting material

Military supply-chain management is a cross-functional approach to procuring, producing, and delivering products and services for military materiel applications. Military supply chain management includes sub-suppliers, suppliers, internal information and funds flow.

== Research and applications == Since matrikine peptides are used primarily for cosmetic applications which require only limited safety testing and have no requirement for proof of efficacy, much research into these peptides has been published in self-published sources such as patent applications, or in open-access journals which are generally regarded as low-quality sources due to the limited scope of peer review. This has meant that the claimed skin repair and anti-aging efficacy of these peptides has historically been treated with skepticism by the mainstream scientific community and regarded as marketing hype which has not been proven by rigorous scientific research. In recent years however, increasing evidence has accumulated to support the claimed activity of at least some of the matrikine peptides, along with investigation of these molecules for potential clinical applications such as treatment of arthritis and tendinopathy, and this has led medicines regulators in some jurisdictions such as Australia and New Zealand to view certain peptides from this group as medicines, and consequently ban them by classifying them as prescription medicines which are not actually available for prescription. In most parts of the world however these peptides are still classified as cosmetics and can be sold with relatively few restrictions, and they are widely used in countries such as Japan, China, South Korea, the United States and in Europe.

24998Cf + 157N → 260105 + 4 n These results did not confirm the JINR findings regarding the 9.4 MeV or 9.7 MeV alpha decay of 260105, leaving only 261105 as a possibly produced isotope. JINR then attempted another experiment to create element 105, published in a report in May 1970. They claimed that they had synthesized more nuclei of element 105 and that the experiment confirmed their previous work. According to the paper, the isotope produced by JINR was probably 261105, or possibly 260105. This report included an initial chemical examination: the thermal gradient version of the gas-chromatography method was applied to demonstrate that the chloride of what had formed from the SF activity nearly matched that of niobium pentachloride, rather than hafnium tetrachloride. The team identified a 2.2-second SF activity in a volatile chloride portraying eka-tantalum properties, and inferred that the source of the SF activity must have been element 105. In June 1970, JINR made improvements on their first experiment, using a purer target and reducing the intensity of transfer reactions by installing a collimator before the catcher. This time, they were able to find 9.1 MeV alpha activities with daughter isotopes identifiable as either 256103 or 257103, implying that the original isotope was either 260105 or 261105.

Jorge Rodríguez announced on 8 January 2026 that an "important" number of political prisoners would be released as a "gesture" by the government. Of an estimated 800 political prisoners in Venezuela, nine prisoners were released that day. The US had previously requested the release of political prisoners, and Trump declared in an interview "they've been great ... Everything we've wanted, they've given us." Trump announced on 9 January that he had cancelled a second wave of attacks due to cooperation and the release of political prisoners. The United Nations Human Rights Council-mandated Independent International Fact-Finding Mission on Venezuela reported that about 50 out of the estimated 800 political prisoners in Venezuela were released as of 12 January, saying it fell short on the Venezuelan government's international human rights obligations, and called for the "immediate and unconditional" release of all political prisoners. Local NGOs reported that those released weren't "free", as they remained subject to restrictions and trial. On 23 January, Foro Penal confirmed 154 political prisoners released since 8 January. The same day, Delcy Rodríguez announced 626 prisoners released without providing a specific date. She called for the Office of the United Nations High Commissioner for Human Rights, led by Volker Türk to verify the lists. On 30 January, Delcy Rodríguez announced a general amnesty bill covering the "entire period of political violence from 1999 to the present", dating back to when Hugo Chávez first assumed his presidency.

==== Hydrodynamic separation ==== Particles have been applied for use outside of magnetic separation, with hydrodynamic forces to separate particles from the bulk of a droplet. This is performed on electrode arrays with a central electrode and 'slices' of electrodes surrounding it. Droplets are added onto the array and swirled in a circular pattern, and the hydrodynamic forces from the swirling cause the particles to aggregate onto the central electrode.

Sources: en.wikipedia.org

Frequently asked questions

Is AOD-9604 the same as human growth hormone?

No. It is a synthetic peptide fragment modeled on part of human growth hormone, not the full hormone. It does not contain the complete sequence or receptor-binding regions of hGH.

Was AOD-9604 approved for weight loss?

It was investigated in clinical trials for obesity, but it did not receive approval for that use in major markets. Results were generally modest or mixed, and it remains an experimental compound.

Why is AOD-9604 banned in sports?

WADA lists it as a prohibited peptide hormone. Its use can be detected by laboratory methods, and athletes are subject to sanctions if it is found in samples.

What is AOD-9604?

AOD-9604 is a synthetic peptide fragment of human growth hormone, corresponding to amino acids 176-191. It is studied for potential effects on fat metabolism, but it is not approved as a drug in most countries. Its exact mechanism remains under investigation.

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