Everything below concerns synthetic peptide. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Updated 2026-01-31. Numbers and descriptions here follow the published literature rather than marketing material.
The compound has been studied as a potential treatment for obesity and related metabolic conditions. Published trials have examined changes in body weight, fat mass, and safety markers over limited durations. Results have been mixed or modest, and no large-scale outcome trials are established. Regulatory agencies in several countries have not approved it as a therapeutic drug. Some commercial products have been marketed outside regulated pharmaceutical channels, which raises questions about quality and claims.
In the scientific literature, AOD-9604 appears in reviews of growth hormone fragments and in discussions of peptide-based metabolic research. Some sources distinguish it from growth hormone itself, while others group it with compounds marketed for weight management. The evidence base is small compared with approved obesity medications. Questions about long-term efficacy and clinical relevance remain open, and independent replication of key findings is limited. Most published reports are early-stage and exploratory.
AOD-9604 is a synthetic peptide modeled on the C-terminal region of human growth hormone. It is often described as hGH fragment 176-191. Research interest arose because it was designed to isolate possible effects on fat metabolism from other actions of growth hormone. It is not a full growth hormone molecule. Its development history includes early laboratory and animal studies followed by human trials. The peptide has been examined in laboratory, animal, and limited human studies.
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.
| Property | Value | Notes |
|---|---|---|
| Common synonym | hGH fragment 176-191 | Refers to the C-terminal segment |
| Appearance | White to off-white powder | Typically supplied lyophilized |
| Solubility | Soluble in water and aqueous buffers | Confirm with technical data |
| Typical storage temperature | -20 °C for dry powder | Protect from moisture and light |
| Common analytical method | RP-HPLC with UV detection | Often paired with mass spectrometry |
Regulatory bodies have taken different approaches to AOD-9604. It is not approved as a prescription medicine by major agencies such as the U.S. Food and Drug Administration or the European Medicines Agency. In sport, the World Anti-Doping Agency prohibits peptide hormones, growth factors, and related substances, and AOD-9604 has been treated as a prohibited substance. These regulatory decisions reflect concerns about safety, efficacy, and potential misuse rather than proof of benefit.
Research on AOD-9604 also examines how the peptide is measured in biological samples. Analytical methods may include liquid chromatography coupled with mass spectrometry, immunoassays, or both. Detection can be challenging because the peptide is small and may be present at low concentrations. Published methods vary in sensitivity and specificity, so comparative interpretation requires attention to validation details. The presence of related hGH fragments can complicate identification in some matrices.
AOD-9604 has been investigated mainly in the context of body fat and metabolic endpoints. Some early animal and small human studies reported changes in fat mass or lipid markers, but findings were not uniform. Larger, well-controlled trials that would establish efficacy are lacking in the public literature. As a result, claims about weight loss or metabolic benefit remain investigational rather than established. The distinction between a research finding and a proven clinical outcome is central to discussing this peptide.
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.
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.
Trump's administration strained relations with South Africa. Trump suspended all aid to South Africa, saying the country's land expropriation law discriminated against Afrikaners; he also offered Afrikaners refugee status in the U.S. Rubio refused to attend the G20 foreign ministers' meeting in Johannesburg and he declared the South African ambassador persona non grata for his criticism of U.S. policies.
=== Biological properties === Chitosan is biodegradable and biocompatible. Chitosan enhances the transport of polar drugs across epithelial surfaces. The enhanced chitosan uptake is mainly due to the interaction of positively charged chitosan with cell membranes, activation of chlorine–bicarbonate exchange channels, and reorganization of proteins associated with epithelial tight junctions, thus opening epithelial tight junctions. However, it is not approved by the FDA for drug delivery. Purified quantities of chitosan are available for biomedical applications. Chitosan inhibits the growth of different bacteria and fungi by mechanisms involving several factors, including the degree of deacetylation, pH, divalent cations, and solvent type.
== Lysosomal Ca2+-signalling modalities == The ER and acidic Ca2+ stores have similarities as well as key differences. Both transport Ca2+ into their lumina where it is stored, and is subsequently released in response to stimuli by opening resident Ca2+ channels. Indeed, the free [Ca2+] of each is broadly similar (~0.5-1.0 mM). However, they differ in the cohort of transporters, their luminal pH and their total volume per cell. The total amount of Ca2+ that is stored in each is a product of the volume and concentration; since the [Ca2+] is the same for each, the total amount of releasable Ca2+ is directly proportional to the organellar volume and therefore lysosomes can release only a small amount Ca2+ of when compared to the ER. This is important because the maximal Ca2+ release from lysosomes is so small that it is frequently 'invisible' in global Ca2+ recordings e.g. using cytosolic fluorescent reporters. In contrast, ER-derived Ca2+ is globally substantial and the predominant intracellular signal visible in global recordings. If lysosomal Ca2+ release is so small, how then can it affect cellular physiology? The answer is that it can exert its effects in two different signalling modalities: local and global, as shall be described. In bacterial infection, however, NAADP induction of lysosomal Ca2+ efflux and TFEB activation leads to enhanced expression of inflammatory cytokines.
Sources: en.wikipedia.org
10 January – First Minister Humza Yousaf confirms those in Scotland convicted because of the Post Office scandal will be cleared following a similar announcement at Westminster for England and Wales, and that he will work with the UK government to bring this about. It is reported that David Page, the deputy chief officer at Police Scotland and the force's most senior member of civilian staff, has made a complaint against new Chief Constable Jo Farrell, doing so within weeks of her arrival. 11 January – First Minister Humza Yousaf confirms that the Scottish Government will "in essence replicate" the law in England and Wales banning unlicensed ownership of American XL bully dogs. Plans are announced for West Town, a £2bn 7,000 home development on land near Edinburgh Airport. 13 January – A 70-year-old woman is charged after a car ran into protesters at a pro-Palestine march in Edinburgh. 14 January – Ramsay El-Nakla, the brother-in-law of Humza Yousaf, has been charged by police in connection with drugs offences. 15 January – Robert O'Brien and Andrew Kelly are sentenced to life imprisonment with minimum terms of 22 and 18 years respectively for the 1996 murder of Caroline Glachan. James Stockan announces he will step down from the post of leader of Orkney Islands Council, as well as relinquishing his council seat, after six years in the role. 16 January – A yellow weather warning is in place for snow and ice for the whole of Scotland.
==== Superficial ==== Superficial fascia is the lowermost layer of the skin in nearly all of the regions of the body, that blends with the reticular dermis layer. It is present on the face, over the upper portion of the sternocleidomastoid, at the nape of the neck and overlying the breastbone. It consists mainly of loose areolar and fatty adipose connective tissue and is the layer that primarily determines the shape of a body. In addition to its subcutaneous presence, superficial fascia surrounds organs, glands and neurovascular bundles, and fills otherwise empty space at many other locations. It serves as a storage medium of fat and water; as a passageway for lymph, nerve and blood vessels; and as a protective padding to cushion and insulate. Superficial fascia is present, but does not contain fat, in the eyelid, ear, scrotum, penis and clitoris. Due to its viscoelastic properties, superficial fascia can stretch to accommodate the deposition of adipose that accompanies both ordinary and prenatal weight gain. After pregnancy and weight loss, the superficial fascia slowly reverts to its original level of tension.
== Clinical Significance == In diseases related to the cartilage, the territorial matrix undergoes structural and material changes, leading to degradation of the joints, like in the case of osteoarthritis. Osteoarthritis occurs when the proteoglycans and collagen fibers degrade and become disorganized. Consequently, the decreased mechanical support makes chondrocytes more vulnerable to damage. Matrix-degrading enzymes including matrix metalloproteinases (MMPs) target the region which can accelerate cartilage degradation. Attempts to restore a functional territorial matrix is a particular area of interest in tissue engineering and cartilage repair, since its structure significantly contributes to optimal mechanical and biochemical behavior. Studies on biomimetic proteoglycans, which mimic the natural existing component of the ECM, and their effect on neighboring cartilage regions have shown promising results for strengthening cartilage with osteoarthritis. Additionally, biomaterials designed to mimic native composition and mechanical properties of cartilage, especially those with synthetic proteoglycans or collagen, have shown experimental promise. In combination with these structures, the durability of engineering cartilage may be enhanced by regenerating the territorial matrix and could improve integration with native tissue.
== Medical uses == Isotretinoin is used primarily for persistent cystic acne. Many dermatologists also support its use for treatment of lesser degrees of acne that prove resistant to other treatments, or that produce scarring or psychological distress. Isotretinoin is not indicated for the treatment of prepubertal acne and is not recommended in children less than 12 years of age. It is also somewhat effective for hidradenitis suppurativa and some cases of severe rosacea. It can also be used to help treat harlequin ichthyosis, lamellar ichthyosis and is used in xeroderma pigmentosum cases to relieve keratoses. Isotretinoin has been used to treat the extremely rare condition fibrodysplasia ossificans progressiva. It is also used for the treatment of pediatric neuroblastoma in Japan, but data for its efficacy is not conclusive and it has not been approved in other countries. Isotretinoin therapy has furthermore proven effective against genital warts in experimental use but is rarely used for this indication as there are more effective treatments. Isotretinoin may represent an efficacious and safe alternative systemic form of therapy for recalcitrant condylomata acuminata (RCA) of the cervix. In most countries, this therapy is currently unapproved and only used if other therapies fail.
Sources: en.wikipedia.org
== Personal life == In August 2016, Shaw married writer–producer Zach Strauss. Shaw has a son, Isaac Love, from a prior relationship with director and actor Mark Webber. Shaw and Webber share joint custody of Isaac.
This tornado was part of a small outbreak that affected Europe that day, which produced a total of seven tornadoes. In Poland, one person was injured by an F2 tornado that impacted the towns of Librantowa and Koniuszowa, damaging numerous structures, 15 of which had their roofs torn off. Numerous reports of damaging straight-line winds and large, destructive hail were received as well. Weather of 2021 List of tornadoes rated on the International Fujita scale List of European tornadoes and tornado outbreaks List of F4 and EF4 tornadoes List of F4 and EF4 tornadoes (2020–present) October 2022 European tornado outbreak – An EF3 tornado struck Bihucourt F4 Tornado Hits Hodonín, Czechia - Jun. 24, 2021 tornádo v Hodoníně F4 Tornado Hits Hodonín, Czechia - Jun. 24, 2021 tornádo v Hodoníně (Part 2) Inside of an F4 tornado (full version)
The International Union of Pure and Applied Chemistry (IUPAC) initially established lawrencium as the official name for the element and gave the American team credit for the discovery; this was reevaluated in 1992, giving both teams shared credit for the discovery but not changing the element's name.
== Biosynthesis == The apelin gene encodes a pre-proprotein of 77 amino acids, with a signal peptide in the N-terminal region. After translocation into the endoplasmic reticulum and cleavage of the signal peptide, the proprotein of 55 amino acids may generate several active fragments: a 36 amino acid peptide corresponding to the sequence 42-77 (apelin 36), a 17 amino acid peptide corresponding to the sequence 61-77 (apelin 17) and a 13 amino acid peptide corresponding to the sequence 65-77 (apelin 13). This latter fragment may also undergo a pyroglutamylation at the level of its N-terminal glutamine residue. However the presence and/or the concentrations of those peptides in human plasma has been questioned. Recently, 46 different apelin peptides ranging from apelin 55 (proapelin) to apelin 12 have been identified in bovine colostrum, including C-ter truncated isoforms.
=== Separation of powers === On 24 October, the Sudanese Professionals Association (SPA) claimed that civilian members of the Sovereignty Council violated the constitutional constraints on their power by appearing to coordinate with Rapid Support Forces (RSF) and override the Ministry of Health's role in managing vector control against the spread of dengue fever and chikungunya. The SPA stated, "the campaign appeared to be the scene of direct interaction of the [RSF] with the health situation in the concerned states, in the absence of health departments at the federal or state level. ... [The] whole issue of health is not the prerogative of the Sovereign Council." Sudan Tribune expressed concern that the RSF and its leader Hemedti were trying to improve the RSF's image, damaged by its carrying out of crimes against humanity in the War in Darfur and human rights violations during the 3 June 2019 Khartoum massacre.
Sources: en.wikipedia.org
It is a synthetic peptide fragment derived from the C-terminal region of human growth hormone, commonly referred to as hGH fragment 176-191. It has been investigated for effects on fat metabolism, but it is not an approved medication in most jurisdictions.
No. It is a shortened peptide fragment, not the full hormone. It does not contain the entire hGH sequence and is studied for different proposed effects.
Regulatory approvals for weight loss are not established in major jurisdictions. Some human trials reported modest changes, but the evidence is limited, and it remains a research compound.
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.