This is a working overview of hGH fragment, written for readers who want more than a one-paragraph summary but less than a textbook.
This page was last updated on 2025-12-27 and is reviewed periodically as new material appears.
AOD-9604 is a synthetic peptide whose structure corresponds to a C-terminal segment of human growth hormone. It is often described as hGH fragment 176-191, a 16-amino-acid sequence. The peptide was designed to isolate a region of hGH associated with fat metabolism while avoiding the full hormone's growth-promoting actions. Laboratory and commercial materials typically present it as a lyophilized powder for research use. Its identity is defined by amino acid sequence, not by a single brand.
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.
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.
| Property | Value | Notes |
|---|---|---|
| Molecular class | Synthetic peptide | Based on the C-terminal region of human growth hormone. |
| Amino acid length | 16 residues | Often described as hGH fragment 176-191. |
| Appearance | Lyophilized powder | Typically white to off-white; exact appearance depends on grade. |
| Solubility | Soluble in water | Aqueous solubility depends on pH, ionic strength, and preparation. |
| Typical storage | -20 °C or lower | Lyophilized peptide is usually kept cold and dry; solutions may require freezing. |
DNA sequencing research, using microfluidics, also has the ability to be applied to the sequencing of RNA, using similar droplet microfluidic techniques, such as the method, inDrops. This shows that many of these DNA sequencing techniques will be able to be applied further and be used to understand more about genomes and transcriptomes.
== Pharmacology == GABOB is a GABA receptor agonist. It has two stereoisomers, and shows stereoselectivity in its actions. Specifically, (R)-(–)-GABOB is a moderate-potency agonist of the GABAB receptor, while (S)-(+)-GABOB is a partial agonist of the GABAB receptor and an agonist of the GABAA receptor. (S)-(+)-GABOB is around twice as potent an anticonvulsant as (R)-(–)-GABOB. GABOB is used medically as a racemic mixture. Relative to GABA, GABOB has more potent inhibitory effects on the central nervous system, perhaps due to its greater capacity to cross the blood–brain barrier. However, GABOB is of relatively low potency as an anticonvulsant when used by itself, and is more useful as an adjuvant treatment used alongside another anticonvulsant.
In the case of dried psilocybin-containing mushrooms, microdoses are 0.1 g to 0.3 g and psychedelic doses are 1.0 g to 3.5–5.0 g. The preceding 1.0 to 5.0 g range corresponds to psilocybin doses of about 10 to 50 mg. Psilocybin-containing mushrooms vary in their psilocybin and psilocin content, but are typically around 1% of the dried weight of the mushrooms (in terms of total or combined psilocybin and psilocin content). Psilocybin and psilocin are similar in potency and dose but psilocin is about 1.4-fold more active, this being related to the difference in molecular weight between the two compounds. Some psychedelics, such as 2C-B, 2C-E, 2C-P, methallylescaline (MAL), and 4-HO-DiPT among others, have been said to have steep dose–response curves, meaning that the difference in dose between a light experience and an overwhelming disconnection from reality can be small. Conversely, 2C-D is described as having an unusually wide and gradual dose range.
=== Spacecraft preparations === In September 1962, NASA concluded negotiations with McDonnell to modify four Mercury spacecraft (#12, #15, #17 and #20) to a configuration that supported a one-day mission. Such changes to the spacecraft included the removal of the periscope and a redundant set of thrusters, and the addition of extra batteries and oxygen tanks. In November 1962, Gordon Cooper was chosen to pilot the MA-9 mission and Alan Shepard was picked as backup.
Sources: en.wikipedia.org
Most newspapers in Hong Kong are written in Chinese. There are also English-language newspapers, the major one being the South China Morning Post, with The Standard serving as a business-oriented alternative. A variety of Chinese-language newspapers are published daily; the most prominent are Ming Pao and Oriental Daily News. Local publications are often partisan, with pro-Beijing or pro-democracy sympathies. The central government has a print-media presence in the territory through the state-owned Ta Kung Pao and Wen Wei Po. Several international publications have regional operations in Hong Kong, including The Wall Street Journal, the Financial Times, USA Today, TimeOut, The Nikkei and Vogue Hong Kong. Four free-to-air television broadcasters operate in the territory; TVB, HKTVE, HOY and Phoenix Television air eight digital channels. TVB, Hong Kong's dominant television network, has an 80% viewer share. Paid television services operated by PCCW offer hundreds of additional channels and cater to a variety of audiences. RTHK is the public broadcaster, providing seven radio channels and six free-to-air television channels. Ten non-domestic broadcasters air programming for the territory's foreign population. Access to media and information over the Internet is not subject to mainland Chinese regulations, including the Great Firewall, but local internet censorship applies.
== Political activity == Shawn has written many plays with socialist themes; much of his work examines the "connective tissue between private psychology and the politics of inequality". He identifies as a socialist in the 2011 essay "Why I Call Myself a Socialist: Is the World Really a Stage?", which was published online and later in his Essays. In June 2013, Shawn and many other public figures appeared in a video showing support for Chelsea Manning, a U.S. Army soldier imprisoned for leaking classified material.
=== Odessa Cubbage === Colonel Odessa Cubbage (voiced by John Patrick Lowrie) is a member of the Resistance against the Combine who speaks in distinct Received Pronunciation. He wears a jacket with emblems on it indicating that he was possibly once a security officer as part of the University of Rochester Security Services. According to Raising the Bar, his model was based on the martial arts instructor for one of the game's developers, and the name was found in a spam filter. Odessa Cubbage leads a small Resistance base and town, dubbed "New Little Odessa", in a coastal region outside City 17. Before arriving at New Little Odessa, the player can see Cubbage speaking with the G-Man by looking through a binocular spotting-scope device. When Gordon Freeman arrives at New Little Odessa en route to Nova Prospekt, Cubbage is briefing members on the use of the rocket launcher against Combine gunships. Cubbage entrusts the rocket launcher to Gordon and never turns up to fight himself, instead staying behind to attempt to contact another Resistance settlement.
Lipids in organisms growing on heterotrophic substrates: Growing on sugar: depleted 200‰ ~ 300‰ relative to water Growing on direct precursor of TCA cycle (e.g. acetate (δD = −76‰) or succinate): enriched −50‰ ~ +200‰ relative to water αl/w: −150‰ ~ +200‰ Lipids in organisms growing photoautotrophically: Depleted 50‰ ~ 190‰ relative to water αl/w: −150‰ ~ −250‰ Lipids in organisms growing chemoautotrophically: αl/w: −200‰ ~ −400‰
This stage of the aerobic system occurs on the cristae (infoldings of the membrane of the mitochondria). The reaction of each NADH in this electron transport chain provides enough energy for 3 molecules of ATP, while reaction of FADH2 yields 2 molecules of ATP. This means that 10 total NADH molecules allow the regeneration of 30 ATP, and 2 FADH2 molecules allow for 4 ATP molecules to be regenerated (in total 34 ATP from oxidative phosphorylation, plus 4 from the previous two stages, producing a total of 38 ATP in the aerobic system). NADH and FADH2 are oxidized to allow the NAD+ and FAD to be reused in the aerobic system, while electrons and hydrogen ions are accepted by oxygen to produce water, a harmless byproduct.
Sources: en.wikipedia.org
It is a synthetic peptide based on a C-terminal fragment of human growth hormone. It is commonly referred to as hGH fragment 176-191 and is studied for metabolic effects rather than growth effects.
No. It represents only a short portion of the hGH sequence and lacks the full hormone's structure. As a result, its biological activity and regulatory status differ from those of prescription hGH.
The exact peptide is not typically described as a circulating hormone; it is a synthetic construct based on a natural sequence. Fragments of hGH can exist in laboratory or metabolic contexts, but AOD-9604 itself is manufactured for research.
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.