The short version of secretagogue fits in a sentence. The long version — which is the one that helps — is below.
Reviewed 2026-07-07. Anything still debated is marked as such rather than presented as settled.
In animal and early human studies, ipamorelin produces pulsatile growth hormone release and a secondary rise in insulin-like growth factor 1. The magnitude and duration of that rise depend on route, sampling schedule, and the baseline endocrine state of the subject. Whether repeated exposure alters the response over time is not firmly settled, since some reports describe stable pulsatility while others note attenuation. Most published data come from small samples, which limits the strength of any general claim about long-term behavior.
Ipamorelin is a synthetic pentapeptide that belongs to the growth hormone secretagogue class of compounds. Its sequence is Aib-His-D-2-Nal-D-Phe-Lys-NH2, a structure that differs from natural ghrelin in length and in the presence of non-natural amino acid residues. Early laboratory work described it as a comparatively selective agent that stimulates growth hormone release with limited effect on other pituitary hormones. The compound is supplied as a lyophilized solid for research use and has no identified natural source in the body.
Selectivity is the property most often attached to this peptide. Published animal and early human studies record increases in growth hormone release after administration, with adrenocorticotropic hormone and cortisol responses remaining small by comparison. Effects on appetite-related pathways also appear weaker than those reported for several earlier secretagogues. Reviews that compare members of the growth hormone secretagogue family cite these findings frequently, though the receptor-level explanation for the selectivity continues to be debated rather than settled.
Ipamorelin is a synthetic pentapeptide classified as a growth hormone secretagogue. Its sequence, Aib-His-D-2-Nal-D-Phe-Lys-NH2, combines three non-proteinogenic residues with a C-terminal amide. The N-terminal aminoisobutyric acid unit and the two aromatic D-amino acids distinguish it from peptides assembled only from standard L-amino acids. Its formula is C38H49N9O5, corresponding to an average mass near 711.9 Da. At neutral pH the molecule carries a net positive charge, a property that shapes its behaviour in chromatographic and electrophoretic systems.
The compound was developed at Novo Nordisk during the 1990s as part of a programme seeking secretagogues with improved selectivity. It was described in the peer-reviewed literature in 1998 alongside related pentapeptides from the same series. Investigators advanced it because it raised growth hormone output in animal models while leaving other pituitary hormones comparatively unaffected. The development code NNC 26-0161 appears in earlier reports, and ipamorelin later became the common designation in published work.
| Property | Value | Notes |
|---|---|---|
| Peptide class | Synthetic pentapeptide | GHS-R1a agonist family |
| Receptor target | Ghrelin receptor (GHS-R1a) | G-protein-coupled receptor |
| Sequence length | Five amino acid residues | Includes non-natural residues |
| Primary reported output | Pulsatile growth hormone release | Observed in animal and early human work |
| Molecular formula | C38H49N9O5 | Corresponds to roughly 711.9 g/mol |
Quality claims for research peptides vary widely across suppliers. A certificate of analysis should list purity by chromatography, the mass found by spectrometry, and the analytical conditions used. Independent testing at a third-party laboratory is a common way to check identity and purity, because documents alone cannot confirm what is inside a vial. Purity figures describe the proportion of the target peptide among detected species, and they say nothing about biological activity or sterility.
Lyophilized ipamorelin powder is the form usually supplied for laboratory work. Kept dry, protected from light, and held at minus 20 degrees Celsius or below, it remains stable for extended periods, often measured in years. Once dissolved, the peptide degrades faster through hydrolysis, oxidation, and deamidation, so solutions are typically refrigerated and used within weeks. Repeated freeze-thaw cycles and exposure to alkaline conditions accelerate loss of the parent compound.
Reversed-phase high-performance liquid chromatography is the standard tool for assessing purity. Detection near 214 nanometers captures the peptide backbone, and the resulting chromatogram shows the main peak alongside related impurities. Electrospray ionization mass spectrometry confirms molecular mass and supports sequence verification. Common degradation products include oxidized residues, deamidated forms, and truncated fragments, each appearing as a distinct peak or shoulder in the trace.
=== Metabolism === The metabolism of the compound primarily occurs in the liver through both reduction and conjugation pathways. A major metabolic step involves the reduction of the quinone to its corresponding hydroquinone. The main metabolic route is the detoxification via conjugation with glutathione (GSH). This phase II metabolism reaction serves to neutralize the compound's electrophilicity, facilitating safer elimination. Nevertheless, excessive or chronic exposure may lead to the depletion of cellular GSH pools, which enhances oxidative stress and potential cellular damage. The subsequent processing of these glutathione conjugates results in the formation of cysteine conjugates and mercapturic acids.
If the aqueous solution is saturated with a given salt solute, any additional such salt precipitates out of the solution. In the more general Brønsted–Lowry acid–base theory (1923), a base is a substance that can accept hydrogen cations (H+)—otherwise known as protons. This does include aqueous hydroxides since OH− does react with H+ to form water, so that Arrhenius bases are a subset of Brønsted bases. However, there are also other Brønsted bases which accept protons, such as aqueous solutions of ammonia (NH3) or its organic derivatives (amines). These bases do not contain a hydroxide ion but nevertheless react with water, resulting in an increase in the concentration of hydroxide ion. Also, some non-aqueous solvents contain Brønsted bases which react with solvated protons. For example, in liquid ammonia, NH2− is the basic ion species which accepts protons from NH4+, the acidic species in this solvent. G. N. Lewis realized that water, ammonia, and other bases can form a bond with a proton due to the unshared pair of electrons that the bases possess. In the Lewis theory, a base is an electron pair donor which can share a pair of electrons with an electron acceptor which is described as a Lewis acid. The Lewis theory is more general than the Brønsted model because the Lewis acid is not necessarily a proton, but can be another molecule (or ion) with a vacant low-lying orbital which can accept a pair of electrons. One notable example is boron trifluoride (BF3). Some other definitions of both bases and acids have been proposed in the past, but are not commonly used today.
However, benzodiazepines have been used clinically to manage the adverse psychological effects of psychedelics, for instance in clinical studies and in the emergency department. A clinical trial of psilocybin and midazolam coadministration found that midazolam clouded the effects of psilocybin and impaired memory of the experience. Benzodiazepines might interfere with the therapeutic effects of psychedelics, such as sustained antidepressant effects. Some serotonergic psychedelics, for instance dimethyltryptamine (DMT) and 5-MeO-DMT, are highly susceptible substrates for monoamine oxidase (MAO), specifically MAO-A, and hence can be greatly potentiated by monoamine oxidase inhibitors (MAOIs). An example of this is ayahuasca, in which plants containing both DMT and harmala alkaloids acting as MAOIs such as harmine and harmaline are combined. This allows DMT to become orally active and to have a much longer duration of action than usual. The 2C psychedelics, such as 2C-B, 2C-I, and 2C-E, are also substrates of both MAO-A and MAO-B, and may likewise be greatly potentiated by MAOIs. Examples of MAOIs that may potentiate psychedelics behaving as MAO-A and/or MAO-B substrates include phenelzine, tranylcypromine, isocarboxazid, moclobemide, and selegiline. Combination of MAO-substrate psychedelics with MAOIs can result in overdose and serious toxicity, including death. Other psychedelics, such as LSD, are not substrates of MAO and are not potentiated by MAOIs.
In February 2013, the Australian Sports Anti-Doping Authority (ASADA) and the World Anti-Doping Agency (WADA) began an investigation into the legality of Essendon's supplements program during the 2012 AFL season and the preceding preseason. Thirty-four Essendon players—including Watson—were suspected of taking the banned peptide Thymosin beta-4. This quickly led to debate over whether or not a guilty verdict would see Watson stripped of the medal. The investigation and court action stretched over the following four years. Initially, the AFL Tribunal delivered a not guilty verdict in March 2015, but on appeal in the Court of Arbitration for Sport (CAS), the players were found guilty in January 2016, resulting in the suspensions of all thirty-four players. An appeal lodged against that decision in the Federal Supreme Court of Switzerland was dismissed in October 2016. Following the guilty verdict handed down by the CAS in January, it was announced the AFL Commission would meet in February to determine whether Watson would retain his Brownlow Medal; however, this decision was delayed until the outcome of the Federal Supreme Court appeal. The final decision regarding Jobe Watson's Brownlow medal win was decided by the AFL Commission in late November 2016, with Watson retrospectively ruled ineligible for the award, and the medal then awarded to the next highest vote-getters, Cotchin and Mitchell, under the normal rules regarding ineligible players; Watson had pre-empted the decision by announcing on 11 November 2016 that he would hand back the medal.
Carl Gustav Jung was born 26 July 1875 in Kesswil, in the Swiss canton of Thurgau, as the first surviving son of Paul Achilles Jung (1842–1896) and Emilie Jung (née Preiswerk; 1848–1923). His birth was preceded by two stillbirths and that of a son named Paul, born in 1873, who survived only a few days. Paul Jung, Carl's father, was the youngest son of a noted German-Swiss physician and professor of medicine at Basel, Karl Gustav Jung (1794–1864). Karl Jung became Rector of Basel University and Master of the Swiss Lodge of Freemasons. It was rumoured that he was the illegitimate son of Goethe, but this is likely a legend. Paul Jung was a rural pastor in the Swiss Reformed Church.Jung considered his father reliable, but weak and powerless. Emilie Preiswerk, Carl's mother, grew up in a large family whose Swiss roots went back five centuries. She was the youngest child of a distinguished Basel churchman and academic, Samuel Preiswerk (1799–1871), and his second wife. Samuel Preiswerk was an Antistes (the title given to the head of the Reformed clergy in the city) as well as a Hebraist, author, and editor, who taught Paul Jung as his professor of Hebrew at Basel University. He was an early advocate of Zionism and was interested in the occult. Eight of Carl Jung's uncles were also clergymen.
Sources: en.wikipedia.org
Austin has said he is "eternally indebted" to Ross for helping his character become popular. On both his podcasts, Austin credited Bret Hart as the wrestler who got him over the most, had most influence on his early wrestling style, and who he had his best matches with. Austin would later go on to induct Bret Hart into the WWE Hall of Fame. The match between Austin and Bret Hart at WrestleMania 13 has been widely regarded as one of the greatest professional wrestling matches of all time, and has been voted by IGN as the greatest match in WrestleMania history, and was number 1 among their list of top 20 WrestleMania matches of all time. The match would later receive the inaugural "Immortal Moment" Award at the 2025 WWE Hall of Fame ceremony. A 12-minute match between Undertaker and Stone Cold Steve Austin drew a 9.5 rating on June 28, 1999. It stands as the highest-rated segment in Raw history. According to the data collected by US-bookies, Stone Cold Steve Austin is still WWE's best merchandise seller earning an estimated $3,600,000 from merchandise on WWE Shop site. John Cena takes the #2 spot, earning almost $2,700,000 from WWE Shop. The 'Austin 3:16' T-shirt is among the best selling T-shirts in wrestling history. In August 2001, Austin began frequently shouting "What?" to interrupt wrestlers who were trying to speak and to initiate fan participation chants.
==== Added sugars ==== While it is not necessary to limit the sugars found naturally in whole, unprocessed foods like fresh fruit, eating too much added sugar found in many processed foods increases the risk of heart disease, obesity, cavities and Type 2 diabetes. The American Heart Association recommends women limit added sugars to no more than 420 kilojoules (100 kilocalories), or 25 grams, and men limit added sugars to no more than 650 kJ (155 kcal), or about 38.75 grams, per day. Currently, Americans consume an average of 1,490 kJ (355 kcal) from added sugars each day.
A pre-bolus of insulin will mitigate a spike in blood sugar that results from eating high glycemic foods. Infused insulin analogs such as NovoLog and Apidra typically begin to reduce blood sugar levels 15 or 20 minutes after infusion. As a result, easily digested sugars often hit the bloodstream much faster than infused insulin intended to cover them, and the blood sugar level spikes upward as a result. If the bolus were infused 20 minutes before eating, then the pre-bolused insulin would hit the bloodstream simultaneously with the digested sugars to control the magnitude of the spike. A pre-bolus of insulin can combine a meal bolus and a correction bolus when the blood sugar is above the target range before a meal. The timing of the bolus is a controllable variable to bring down the blood sugar level before eating again causes it to increase. Similarly, a low blood sugar level or a low glycemic food might be best treated with a bolus after a meal is begun. The blood sugar level, the type of food eaten, and a person's individual response to food and insulin affect the ideal time to bolus with the pump.
Injo-gogi-bap – a Korean steamed rice wrapped in leftover soybean paste and dressed with a chili sauce. Oncom – one of the traditional staple foods of West Java (Sundanese) cuisine of Indonesia, there are two types: red oncom and black oncom. Oncom is closely related to tempeh; both are foods fermented using mold. Koya dofu – a freeze-dried tofu that has a taste and texture similar to meat when prepared, common in Buddhist vegetarian cuisine
=== ColdFusion and .NET === ColdFusion 8 natively supports .NET within the CFML syntax. ColdFusion developers can simply call any .NET assembly without needing to recompile or alter the assemblies in any way. Data types are automatically translated between ColdFusion and .NET (example: .NET DataTable → ColdFusion Query). A unique feature for a Java EE vendor, ColdFusion 8 offers the ability to access .NET Assemblies remotely through proxy (without the use of .NET Remoting). This allows ColdFusion users to leverage .NET without having to be installed on a Windows operating system.
Sources: en.wikipedia.org
It is a synthetic pentapeptide in the growth hormone secretagogue family and acts as an agonist at the ghrelin receptor. It is handled as a laboratory research compound rather than a naturally occurring hormone.
Studies generally report growth hormone as the dominant output, with smaller or absent effects on adrenocorticotropic hormone and prolactin. The size of that separation depends on the assay and the dose examined, so it is best described as relative selectivity.
No natural source has been identified, and the molecule is produced by chemical synthesis. Its non-natural residues distinguish it from endogenous ghrelin even though both engage the same receptor.
It is a synthetic five-amino-acid peptide that acts as a growth hormone secretagogue. Three of its residues are non-standard amino acids, and the chain ends in an amide rather than a free acid. The molecule is small enough that it can be characterised by routine peptide analytical techniques.