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 2026-08-01. Where a claim depends on a specific study, the study is described rather than over-claimed.
Proposed mechanisms for AOD-9604 focus on fat cells. Laboratory studies suggest the peptide can increase lipolysis, the breakdown of stored fat, and reduce lipogenesis, the formation of new fat. Unlike full human growth hormone, it does not appear to stimulate substantial IGF-1 production in the studies reported so far. Some evidence points to beta-adrenergic signaling, but the precise receptor targets and downstream pathways remain unresolved. The fragment is not thought to act through the classical growth hormone receptor.
Clinical development of AOD-9604 included trials in people with obesity. Reports from early-phase and mid-phase studies described modest or inconsistent changes in body weight. A phase IIb program did not meet its primary endpoint, and the compound was not approved for medical use. Differences in formulation, delivery route, and participant characteristics may explain some of the variation. Later investigations explored whether the peptide might have effects in other tissues, including cartilage.
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.
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.
| Property | Value | Notes |
|---|---|---|
| Typical storage temperature | -20 °C | Lyophilized peptide; protect from moisture and light. |
| Typical analytical method | HPLC and mass spectrometry | Used to confirm identity and estimate purity. |
| Common synonyms | AOD9604; hGH 176-191 | Naming varies by supplier and publication. |
| Disulfide bonds | One | Affects folded structure and stability. |
| Typical research purity | ≥95% | Value depends on supplier and analytical method. |
Quality varies among research-grade suppliers, so certificates of analysis and independent testing are important for verification. A typical certificate reports purity by HPLC, identity by mass spectrometry, appearance, and sometimes residual solvents or water content. AOD9604 is often sold as a research chemical not intended for human consumption, and labels can be inaccurate. Common misconceptions include treating the peptide as a form of growth hormone, assuming supplement status, or expecting approved-drug quality from unregulated products.
AOD9604 is commonly supplied as a white to off-white lyophilized powder. The powder is typically stored at -20 °C or below, protected from light and moisture, because peptides can degrade through oxidation, hydrolysis, or aggregation. If it is reconstituted for laboratory use, an appropriate aqueous buffer or solvent is chosen, and the solution is kept cold and handled to avoid repeated freeze-thaw cycles. These practices support stability but do not imply suitability for human use.
Identity and purity are usually assessed with reversed-phase high-performance liquid chromatography and mass spectrometry. Reversed-phase HPLC separates the peptide from related impurities and can estimate purity by ultraviolet absorbance, while mass spectrometry confirms the molecular mass and detects modifications. Peptide mapping, amino acid analysis, and disulfide mapping may be used when the sequence or disulfide arrangement must be verified. Because AOD9604 contains cysteine residues, oxidation and disulfide isomers are possible quality concerns in synthetic batches.
The fragment includes residues that can form an internal disulfide bond between two cysteine positions. This structural feature can influence how the peptide folds and how stable it is in solution. AOD-9604 differs from full-length hGH in size and receptor interactions; it does not contain the entire growth hormone sequence. Published descriptions sometimes use slightly different residue numbering, so sequence information should be checked against primary sources. The molecule is small compared with intact hGH, which affects analytical detection and purification approaches.
Interest in AOD-9604 arose from attempts to separate metabolic effects from growth effects attributed to hGH. Early work explored whether the fragment could influence lipolysis or fat oxidation without promoting growth. Those questions remain partly unresolved because human data are limited and results have varied across studies. The peptide is not a hormone replacement for hGH and is not equivalent to hGH in clinical use. Its research history includes both laboratory studies and commercial marketing claims that are not the same as regulatory approval.
=== Thailand === Possession of kratom was illegal in Thailand until 2018. The Thai government had passed the Kratom Act 2486, effective August 1943, which made planting the tree illegal, in response to a rise in its use when opium became very expensive in Thailand and the government was attempting to gain control of the opium market. In 1979, the government placed kratom, along with cannabis, in Category V of a five-category classification of narcotics. Kratom accounted for less than two percent of arrests for narcotics between 1987 and 1992. The Thai government has considered legalizing kratom for recreational use in 2004, 2009, 2013, and 2020. In 2018, Thailand became the first Southeast Asian country to legalize kratom for medical purposes. In 2021, Thailand fully legalized kratom and removed it from the list of Category V narcotics. More than 12,000 people who had been convicted for kratom-related offences when it was still considered a narcotic were granted an amnesty.
The United States is home to a wide variety of ethnic groups, traditions, and customs. The country has been described as having the values of individualism and personal autonomy, as well as a strong work ethic and competitiveness. Voluntary altruism toward others also plays a major role; according to a 2016 study by the Charities Aid Foundation, Americans donated 1.44% of total GDP to charity—the highest rate in the world by a large margin. Americans have traditionally been characterized by a unifying political belief in an "American Creed" that emphasizes consent of the governed, liberty, equality under the law, democracy, social equality, property rights, and a preference for limited government. The U.S. has acquired significant hard and soft power through its diplomatic influence, economic power, military alliances, and cultural exports such as American movies, music, video games, sports, and food. The influence that the United States exerts on other countries through soft power is referred to as Americanization. Nearly all present Americans or their ancestors came from Europe, Africa, or Asia (the "Old World") within the past five centuries. Mainstream American culture is a Western culture largely derived from the traditions of European immigrants with influences from many other sources, such as traditions brought by slaves from Africa.
Digital microfluidics (DMF) is a platform for lab-on-a-chip systems that is based upon the manipulation of microdroplets. Droplets are dispensed, moved, stored, mixed, reacted, or analyzed on a platform with a set of insulated electrodes. Digital microfluidics can be used together with analytical analysis procedures such as mass spectrometry, colorimetry, electrochemical, and electrochemiluminescense.
== Further reading == May RM, Anderson RM (1991). Infectious diseases of humans: dynamics and control. Oxford: Oxford University Press. ISBN 0-19-854040-X. Vynnycky E, White RG, eds. (2010). An Introduction to Infectious Disease Modelling. Oxford: Oxford University Press. ISBN 978-0-19-856576-5. Capasso V (2008). Mathematical Structures of Epidemic Systems. 2nd Printing. Heidelberg: Springer. ISBN 978-3-540-56526-0. Carlson CS, Rubin DM, Heikkilä V, Postema M (2021). "Extracting transmission and recovery parameters for an adaptive global system dynamics model of the COVID-19 pandemic". 2021 IEEE Africon (PDF). pp. 456–459. doi:10.1109/AFRICON51333.2021.9570946. ISBN 978-1-6654-1984-0. S2CID 239899862.
Sources: en.wikipedia.org
=== CNO-III === This subdominant branch is significant only for massive stars. The reactions are started when one of the reactions in CNO-II results in fluorine-18 and a photon instead of nitrogen-14 and an alpha particle, and continues
=== Pregnancy === HLA-G plays a role in immune tolerance in pregnancy, being expressed in the placenta by extravillous trophoblast cells (EVT), while the classical MHC class I genes (HLA-A and HLA-B) are not. As HLA-G was first identified in placenta samples, many studies have evaluated its role in pregnancy disorders, such as preeclampsia and recurrent pregnancy loss. Its downregulation is related to HLA-A and -B downregulation results in protection from cytotoxic T cell responses, but would in theory result in a missing self response by natural killer cells. HLA-G is a ligand for natural killer (NK) cell inhibitory receptor KIR2DL4, and therefore expression of this HLA by the trophoblast defends it against NK cell-mediated death. The presence of soluble HLA-G (sHLA-G) in embryos is associated with better pregnancy rates. In order to optimize pregnancy rates, there is significant evidence that a morphological scoring system is the best strategy for the selection of embryos. However, presence of soluble HLA-G might be considered as a second parameter if a choice has to be made between embryos of morphologically equal quality.
== Diuretics and masking agents == Diuretics, sometimes known as ‘water pills,’ are drugs that alter the body's fluid and salt balance, increasing urine production. They are used for the swelling and bloating of premenstrual syndrome, for treating high blood pressure, and in older people for heart failure caused by weakening of the heart's pumping mechanism. Diuretics can be used to pass a drug test because they increase the amount of urine produced by the body, thereby it dilutes any drugs in the urine which makes it harder to identify them. Examples of diuretics and masking agents are bumetanide, chlorothiazide, furosemide, hydrochlorothiazide, probenecid, spironolactone (canrenone), triameterene, and trichlormethiazide. Finasteride is not banned.
Other economic reforms passed by the government included the creation of a unified modern currency based on the Japanese yen, banking, commercial and tax laws, stock exchanges, and a communications network. Establishment of a modern institutional framework conductive to an advanced capitalist economy took time, but was completed by the 1890s, by which time the government had largely relinquished direct control of the modernization process, primarily for budgetary reasons. The Land Tax Reform of 1873 was another significant fiscal reform by the Meiji government, establishing the right of private land ownership for the first time in Japan's history. Many of the former daimyo, whose pensions had been paid in a lump sum, benefited greatly through investments they made in emerging industries. Those who had been informally involved in foreign trade before the Meiji Restoration also flourished. Old bakufu-serving firms that clung to their traditional ways failed in the new business environment. The industrial economy continued to expand rapidly, until about 1920, due to inputs of advanced Western technology and large private investments. By World War I, Japan had become a major industrial nation.
The larval brain and nerve cord consist of 3,016 neurons and 548,000 synapses. The Drosophila adult central nervous system (brain plus ventral nerve cord) has been reconstructed in both the male and the female and contains around 160,000 neurons and over 200 million synapses. These datasets allow scientists to generate testable hypotheses about how the brain processes information and gives rise to behavior.
Sources: en.wikipedia.org
=== Deoxyribonucleic acid === Deoxyribonucleic acid (DNA) is a nucleic acid containing the genetic instructions used in the development and functioning of all known living organisms. The chemical DNA was discovered in 1869, but its role in genetic inheritance was not demonstrated until 1943. The DNA segments that carry this genetic information are called genes. Other DNA sequences have structural purposes, or are involved in regulating the use of this genetic information. Along with RNA and proteins, DNA is one of the three major macromolecules that are essential for all known forms of life. DNA consists of two long polymers of monomer units called nucleotides, with backbones made of sugars and phosphate groups joined by ester bonds. These two strands are oriented in opposite directions to each other and are, therefore, antiparallel. Attached to each sugar is one of four types of molecules called nucleobases (informally, bases). It is the sequence of these four nucleobases along the backbone that encodes genetic information. This information specifies the sequence of the amino acids within proteins according to the genetic code. The code is read by copying stretches of DNA into the related nucleic acid RNA in a process called transcription. Within cells, DNA is organized into long sequences called chromosomes. During cell division these chromosomes are duplicated in the process of DNA replication, providing each cell its own complete set of chromosomes.
According to Cantrell, the album's cover art featuring a heart surrounded by a black background was inspired by the heartbreak of Staley's death. Staley's former bandmates also thanked him in the album's liner notes. On September 6, 2011, Hank Williams III released his Attention Deficit Domination album and dedicated it to Staley. Staley's Alice in Chains bandmates have stated that one of the saddest aspects of his legacy is to hear him remembered primarily for his drug use rather than the other aspects of his personality. Kinney and Cantrell have also expressed their frustration over the Grammys ignoring Staley during their annual tribute to the musicians who have died in the past year. In 2013, Alice in Chains' drummer, Sean Kinney, added the initials "LSMS" on his drum kit, a tribute to Staley and the band's former bassist, Mike Starr, who died in 2011. The music video for Alice in Chains' 2013 single, "Voices", features a picture of Staley next to a photo of Nirvana's frontman, Kurt Cobain, at the 2:20 mark. Since Alice in Chains reunited, Jerry Cantrell started paying tribute to Staley before performing the song "Nutshell". Since 2011, Cantrell pays tribute to both Staley and Mike Starr before performing the song at concerts. In April 2017, Nancy Wilson revealed that she started writing the song "The Dragon" for Staley in the 1990s. The song was recorded in 2016 and is part of the EP of Wilson's new band, Roadcase Royale, released in 2017.
== Terminology and definition == The term fungarium was introduced by Brian Spooner and Paul Cannon and presented by David Hawksworth in 2010 as a logical analogue to herbarium for collections of preserved fungi. Historically, mycology was treated as a sub-discipline of botany, so fungal specimens were commonly stored within herbaria. The proposal of fungarium formed part of a broader assertion of mycological independence; a related development is the use of "funga" for the fungi of a particular area, in parallel with "flora" for plants and "fauna" for animals. Hawksworth recommended fungarium for facilities whose taxonomic value centres on representative members of the Fungi, although many institutions have continued to use "herbarium" for historical reasons or for combined botanical-mycological collections. The term gained wider professional use when the Royal Botanic Gardens, Kew adopted it for its mycological collection. While some institutions use the term to explicitly distinguish mycological holdings from plant collections, others maintain the name "herbarium" for historical continuity. Similarly, the term "lichenarium" is occasionally used by institutions that maintain separate collections of lichen specimens. In scientific usage, a fungarium is centred on preserved fungal material, usually dried tissue such as whole reproductive structures or representative parts, though it may also include permanent microscope slides and, more rarely, specimens preserved in liquid.
Hyperglycemic glucose clamp investigations Frequently-sampled intravenous glucose tolerance testing (IVGTT or FSIGT) Frequently-sampled oral glucose tolerance testing (OGTT or FSOGT) Simultaneous fasting measurements of insulin and glucose in conjunction with mathematical modelling (SPINA) If clamp investigations are used the disposition index is defined as the product of the area under the insulin response curve (
Sources: en.wikipedia.org
No. Major drug regulators have not approved AOD-9604 for weight loss or any other therapeutic indication. It remains an investigational compound studied in research settings.
The World Anti-Doping Agency classifies it as a prohibited peptide hormone. Athletes under anti-doping rules are not permitted to use it. Its presence can trigger a doping violation.
It is a fragment of growth hormone rather than a substance that signals the pituitary to release more hormone. Studies have not shown a consistent rise in IGF-1 or full growth hormone. Its metabolic effects, if any, appear separate from those of the complete hormone.
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.