AOD-9604 is one of those subjects where the details matter more than the headlines. This page pulls together the background, the mechanisms, and the practical points readers ask about most.
Last reviewed on 2026-06-22. Where a claim depends on a specific study, the study is described rather than over-claimed.
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.
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.
| Property | Value | Notes |
|---|---|---|
| Primary research area | Obesity and metabolic regulation | Studied in cell, animal, and human models |
| Highest reported trial phase | Phase II | Public summaries describe mixed results |
| Common route in trials | Subcutaneous injection | Typical for peptide therapeutics |
| Regulatory example | 2013 Australian anti-doping review | Classification was debated at the time |
| Approval status | Not approved as a human medicine | Status can change by jurisdiction |
Commercial AOD-9604 may vary in purity, counterion content, and residual moisture. Certificates of analysis often report HPLC purity, mass confirmation, and appearance, but testing methods differ between suppliers. Independent verification is sometimes used because labeled content may not match actual peptide amount. Stability under different pH and temperature conditions is not fully standardized across studies. Researchers generally treat lyophilized material as the reference form for weighing and reconstitution. Moisture content can affect accurate mass measurement.
AOD-9604 is typically supplied as a lyophilized white to off-white powder. In this form, it is relatively stable when kept cool, dry, and protected from light. Common storage recommendations place it at −20 °C or below for long-term retention. Reconstituted solutions are less stable and are often kept at 2–8 °C for short periods. Freeze-thaw cycles should be minimized because they can promote aggregation or loss of peptide content. Vials are usually sealed under inert gas to reduce oxidation.
Identity and purity are commonly checked with reversed-phase high-performance liquid chromatography and mass spectrometry. RP-HPLC separates the peptide from related impurities and can estimate purity by peak area. Mass spectrometry confirms molecular mass and helps detect sequence variants or truncations. Some laboratories use amino acid analysis or peptide mapping for additional characterization. No single method proves biological activity; these techniques establish chemical identity and purity only. They also require suitable reference standards for confident comparison.
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.
==== Empire of Japan ==== Under the constitution of the Empire of Japan, the Imperial Diet (Teikoku-gikai) was a bicameral legislature of two houses, generally equal in legislative authority, and while the members of both houses received the same financial compensation - from 1920 and 1947, ¥7500 for the two presidents, ¥4500 for the two vice-presidents, ¥3000 for all other members of both houses, except Imperial princes, dukes and marquesses—their status was different by definition: The upper house consisted mainly of hereditary nobles and lifetime-appointed peers, the lower house of elected commoners. In the First Imperial Diet in 1890, there were initially 551 members of the Imperial Diet (Teikoku-gikai giin, 帝国議会議員, or in contemporaneous script 帝國議會議員): 251 members of the House of Peers (Kizokuin giin, 貴族院議員) and 300 members of the House of Representatives (Shūgiin giin); of the House of Peers members, 10 were members of the Imperial family, 31 were hereditary members from the two upper nobility ranks, 104 were members elected in mutual elections from the three lower nobility ranks, 61 were lifetime-appointed members (many of these from the bureaucracy) and 45 were members elected by the 15 top taxpayers in each of the 45 prefectures.
As Richardson developed the ribbon diagram to illustrate her findings over the course of her taxonomic research, her iconic images first appeared in the review journal Advances in Protein Chemistry in an article titled "The anatomy and taxonomy of protein structure" 1981, an early hallmark publication in structural bioinformatics. The diagrams have since become a standard way of visualizing protein structure, specifically depicting beta-sheet topology and connections between amino acid sequences, or peptides, that make up proteins. The protein folding process involves four levels: primary structures, secondary structures, tertiary structures, and quaternary structures. Secondary structures result from hydrogen bond interactions between adjacent amino acids sequences to form alpha helices or beta-sheets. Tertiary structures are a higher order of protein folding that depict the conformation of and connectivity between alpha-helices and beta-sheets in 3D. Richardson's ribbon diagrams illustrate beta-sheet topology and connectivity in higher-order protein structures. She formalized general rules about beta-sheets linkage via "hairpin" connections or "crossover" connections. In a hairpin connection a peptide backbone stems out of and loops around to return to the same beta-sheet end from which it left. A crossover connection involves the peptide backbone extending out of one beta-sheet and looping around to enter another beta-sheet on the opposite end of the protein.
Starmer pledges to give all veterans, young care leavers and victims of domestic abuse a "guaranteed roof over their head". Senedd members vote to withdraw proposals to require parties to ensure 50% of their candidates are women. 25 September – Unions win a nonbinding vote at the Labour Party Conference calling on the government to reverse its cuts to winter fuel payments. Former Conservative MP and government minister Michael Gove is appointed as editor of The Spectator, and will take up the post in early October. Conservative Senedd member Natasha Asghar is reprimanded by Senedd authorities for calling Wales' 20 mph speed limit a "blanket" policy on social media, while signing off a report advising her party to refrain from using the term. 26 September – Starmer and Foreign Secretary David Lammy hold their first meeting with Donald Trump, attending a two-hour dinner with the Republican presidential candidate in New York. Former Conservative Party chairwoman Baroness Saeeda Warsi resigns from the party in the House of Lords, saying it has lurched to the "far-right". 27 September – 2024 Scottish Conservatives leadership election: Russell Findlay is elected as the new leader of the Scottish Conservatives, succeeding Douglas Ross. The Senedd Commission forecasts it will need an extra £1.2m in 2025–26 to prepare for a larger Senedd at the 2026 election. 28 September – Rosie Duffield, MP for Canterbury, resigns from the Labour Party, citing what she describes as it "cruel" policies and Keir Starmer's "staggering hypocrisy" over his acceptance of gifts.
AOD9604 is an orally active, lipolytic 16-amino acid peptide fragment of human growth hormone and derivative of the C-terminal domain of human growth hormone (HGH). It consists of HGH residues 176–191, with a tyrosine in place of the phenylalanine at the N-terminal end. Initial human trials showed that it retains the lipolytic properties of human growth hormone without stimulating IGF-1 production. However, later studies failed to demonstrate a sufficient lipolytic effect. Its development was terminated in 2007. Despite its limited efficacy, AOD9604 is still banned in athletes and tested for in competition. AOD9604 appears to enhance lipolysis in mice by upregulating beta-3 adrenergic receptors. Beta-3 adrenergic receptor knockout mice are unresponsive to the lipolytic effects of AOD9604. In a 12 week randomised clinical trial, subjects receiving AOD9604 lost, on average, 1.8 kg more than those receiving placebo. Development of AOD9604 was halted following poor efficacy in a later 24 week trial.
Sources: en.wikipedia.org
A few long-lived actinide isotopes, such as 244Pu and 250Cm, cannot be produced in reactors because neutron capture does not happen quickly enough to bypass the short-lived beta-decaying nuclides 243Pu and 249Cm; they can however be generated in nuclear explosions, which have much higher neutron fluxes.
=== C-2/C-3 nucleophilic addition === Isatin suffers nucleophilic addition on carbonyls at C-2 and C-3 positions. The regioselectivity of the process strongly depends both on the substrate (properties of the substituents on the isatin core, especially those bonded to the nitrogen atom) and the reaction conditions (solvent, temperature etc.). In some cases the nucleophilic addition could be followed by secondary reactions (e.g. cyclization, ring expansion, ring opening etc.)
== History == The War Office developed from the Council of War, an ad hoc grouping of the King and his senior military commanders which managed the Kingdom of England's wars and campaigns. The management of the War Office was directed initially by the Secretary at War, whose role had originated during the reign of King Charles II as the secretary to the Commander-in-Chief of the Army. In the latter part of the 17th century, the office of Commander-in-Chief was vacant for several periods, which left the Secretary at War answering directly to the Sovereign; and thereafter, even when the office of Commander-in-Chief was restored on a more permanent basis, the Secretary at War retained his independence. The department of the Secretary at War was referred to as the 'Warr Office' (sic) from as early as 1694; its foundation has traditionally been ascribed to William Blathwayt, who had accompanied King William III during the Nine Years' War and who, from his appointment as Secretary in 1684, had greatly expanded the remit of his office to cover general day-to-day administration of the Army. After Blathwayt's retirement in 1704, Secretary at War became a political office. In political terms, it was a fairly minor government job (despite retaining a continued right of access to the monarch) which dealt with the minutiae of administration, rather than grand strategy. The Secretary, who was usually a member of the House of Commons, routinely presented the House with the Army Estimates, and occasionally spoke on other military matters as required.
=== Structural material === Graphene's strength, stiffness and lightness suggested it for use with carbon fiber. Graphene has been used as a reinforcing agent to improve the mechanical properties of biodegradable polymeric nanocomposites for engineering bone tissue. It has also been used as a strengthening agent in concrete.
=== 2014 === The center delocalized the Production Site & Kiln Site to Tramniak to expand the activity center located on the Temples Road. The center offers a new activity that involves painting on pottery bisque.
Sources: en.wikipedia.org
Fatty foods are sensitive to photooxidation, which forms hydroperoxides by oxidizing unsaturated fatty acids and ester. Exposure to ultraviolet (UV) radiation can cause direct photooxidation and decompose peroxides and carbonyl molecules. These molecules undergo free radical chain reactions, but antioxidants inhibit them by preventing the oxidation processes.
=== Pharmacodynamics === Finasteride is a 5α-reductase inhibitor. It is specifically a selective inhibitor of the type II and III isoforms of the enzyme. By inhibiting these two isozymes of 5α-reductase, finasteride reduces the formation of the potent androgen dihydrotestosterone (DHT) from its precursor testosterone in certain tissues in the body such as the prostate gland, skin, and hair follicles. As such, finasteride is a type of antiandrogen, or more specifically, an androgen synthesis inhibitor. However, some authors do not define finasteride as an "antiandrogen," a term which can refer more specifically to antagonists of the androgen receptor. Finasteride results in a decrease of circulating DHT levels by about 65–70% with an oral dosage of 5 mg/day and of DHT levels in the prostate gland by up to 80–90% with an oral dosage of 1 or 5 mg/day. In parallel, circulating levels of testosterone increase by approximately 10%, while local concentrations of testosterone in the prostate gland increase by about 7-fold and local testosterone levels in hair follicles increase by around 27–53%. An oral dosage of finasteride of only 0.2 mg/day has been found to achieve near-maximal suppression of DHT levels (68.6% for 0.2 mg/day relative to 72.2% for 5 mg/day). Finasteride does not completely suppress DHT production because it lacks significant inhibitory effects on the 5α-reductase type I isoenzyme, with more than 100-fold less inhibitory potency for type I as compared to type II (IC50Tooltip Half-maximal inhibitory concentration = 313 nM and 11 nM, respectively).
The first five stations, covering the approaches to London, were installed by 1937 and began full-time operation in 1938. Over the next two years, additional stations were built while the problem of disseminating the information to the fighter aircraft led to the first integrated ground-controlled interception network, the Dowding system. By the time the war started, most of the east and south coasts had radar coverage. Chain Home proved important during the Battle of Britain in 1940. CH systems could detect enemy aircraft while they were forming over France, giving RAF commanders ample time to marshal their aircraft in the path of the raid. This had the effect of multiplying the effectiveness of the RAF to the point that it was as if they had three times as many fighters, allowing them to defeat frequently larger German forces. The Chain Home network was continually expanded, with over 40 stations operational by the war's end, including mobile versions for use overseas. Late in the war, when the threat of Luftwaffe bombing had ended, the CH systems were used to detect V2 missile launches. UK radar systems were wound down after the war but the start of the Cold War led to the Chain Home radars being pressed into service in the new ROTOR system until replaced by newer systems in the 1950s. Only a few of the original sites remain.
Members of the group held no voting privileges, so they could not affect the outcome of the parent group. The Order evolved into other fraternal groups during the 1920s. Teepee Order of America - Founded in 1915 by Red Fox Francis St. James, an alleged Blackfoot Indian. Open to Indians and non-Indians from the US, Canada, and Latin America, it excluded blacks and European immigrants. Originally similar to the Boy Scouts of America in appealing to youth and "focusing on Indian activities and ceremonies that were romantic in nature." It was a Pan-Indian group, but not as successful as the Society of American Indians, though there was some membership overlap. It advocated for Native American citizenship and questioned the efficacy of the Bureau of Indian Affairs.
Sources: en.wikipedia.org
No major medicines regulator appears to have approved AOD-9604 for human therapeutic use. It has been studied in clinical trials, but those programs did not result in a marketed drug.
It became prominent during a 2013 Australian sports investigation that examined whether it was a prohibited growth-hormone-related substance. Subsequent interpretations and list updates have varied, so current rules should be checked directly.
Published summaries generally report limited or inconsistent weight-loss effects, and complete trial data are not widely available. The studies were not sufficient to establish it as an effective obesity treatment.
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.