The short version of GHRH analog fits in a sentence. The long version — which is the one that helps — is below.
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Tesamorelin is a synthetic analog of growth hormone-releasing hormone, a peptide hormone produced by the hypothalamus. The molecule retains the 44-amino-acid sequence of human GHRH and carries a trans-3-hexenoyl modification at its N-terminus. This modification increases resistance to enzymatic degradation and extends the peptide's functional stability relative to native GHRH. The compound is supplied as a lyophilized powder for reconstitution and subcutaneous administration in clinical settings. Its development code was TH9507, and it belongs to the GHRH analog class. It is not a growth hormone product; instead, it acts upstream to stimulate endogenous growth hormone release.
Clinical interest in tesamorelin arose from the need to address visceral adiposity in people living with HIV. Antiretroviral therapy improved survival but was associated in some patients with central fat accumulation, altered lipid profiles, and metabolic complications. This condition, often called HIV-associated lipodystrophy, involves excess visceral adipose tissue that is difficult to manage through diet and exercise alone. Investigators evaluated tesamorelin because GHRH analogs can stimulate growth hormone secretion and influence fat distribution without direct liposuction or invasive procedures.
特沙莫瑞林是一种合成肽，其序列与人生长激素释放激素的 44 个氨基酸形式相关。它在 N 端带有反式-3-己烯酰基修饰，这一改动可减缓二肽基肽酶 IV 的降解。该化合物属于生长激素释放激素受体激动剂，可刺激垂体释放生长激素。研究文献通常将其归入合成肽类药物，而非小分子化合物。
监管记录显示，特沙莫瑞林于 2010 年在美国首次获得批准，用于人类免疫缺陷病毒感染相关的脂肪营养不良患者。批准依据来自降低内脏脂肪的临床试验，而非体重或瘦体重的普遍改善。后续出现了不同制剂版本，但其核心适应症保持一致。关于长期心血管结局和死亡率影响，现有证据仍不充分。
| Property | Value | Notes |
|---|---|---|
| Molecular weight | Approximately 5,136 Da | Based on the 44-amino-acid peptide backbone and N-terminal modification. |
| Appearance | White to off-white lyophilized powder | Usually supplied in single-use vials for reconstitution. |
| Solubility | Freely soluble in water; slightly soluble in some organic solvents | Peptide nature supports aqueous reconstitution. |
| Typical storage | 2–8 °C, protected from light | Refrigeration reduces degradation; avoid freezing unless specified. |
| Common analytical method | Reverse-phase high-performance liquid chromatography | Used for identity, purity, and quantification. |
| Synonyms | Tesamorelin, TH9507, GHRH(1-44) analog | Generic descriptors; avoid proprietary names. |
Tesamorelin is a synthetic peptide analog of growth hormone-releasing hormone (GHRH). Its sequence corresponds to the 44-amino-acid form of human GHRH with a trans-3-hexenoyl group attached to the N-terminal tyrosine. This modification slows enzymatic cleavage and extends the peptide's activity relative to the native hormone. The compound is produced by solid-phase peptide synthesis and supplied as a lyophilized powder. Researchers classify it as a GHRH receptor agonist. Its structure places it in the same family as other growth hormone secretagogues that act on the pituitary.
Binding of tesamorelin to GHRH receptors on pituitary somatotroph cells triggers cyclic AMP signaling and the release of growth hormone into circulation. Because the peptide acts upstream of the growth hormone axis, its effects are partly mediated by hepatic insulin-like growth factor 1 (IGF-1) production. The pulsatile character of endogenous growth hormone secretion is preserved rather than replaced. Whether amplified signaling produces effects beyond those of native GHRH remains an area of ongoing investigation.
Tesamorelin is a synthetic peptide that belongs to the growth hormone-releasing hormone (GHRH) family. Its sequence corresponds to the fully active 44-amino-acid form of human GHRH, with a single structural modification: the addition of a trans-3-hexenoyl group at the N-terminus. That modification is not found in the naturally occurring hormone and was introduced deliberately during development to improve stability against enzymatic degradation. The compound is therefore best described as a stabilized analogue rather than a naturally occurring peptide.
The native hormone is produced in the hypothalamus and acts on the anterior pituitary. Binding of GHRH to its receptor stimulates synthesis and release of growth hormone into circulation. Because the analogue retains the receptor-binding region of the parent sequence, it engages the same receptor and triggers the same downstream signaling. The result is increased growth hormone secretion from pituitary cells, which in turn influences hepatic production of insulin-like growth factor 1. This axis is the basis for the compound's measured biological effects.
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GLP-1 possesses several physiological properties making it (and its functional analogs) a subject of intensive investigation as a potential treatment of diabetes mellitus, as these actions induce long-term improvements along with the immediate effects. Although reduced GLP-1 secretion has previously been associated with attenuated incretin effect in patients with type 2 diabetes, further research indicates that GLP-1 secretion in patients with type 2 diabetes does not differ from healthy subjects. The most noteworthy effect of GLP-1 is its ability to promote insulin secretion in a glucose-dependent manner. As GLP-1 binds to GLP-1 receptors expressed on pancreatic β cells, the receptors couple to G-protein subunits and activate adenylate cyclase, which increases the production of cAMP from ATP. Subsequently, activation of secondary pathways, including protein kinase A (PKA) and Epac2, alters cell ion channel activity, causing elevated levels of cytosolic Ca2+ that enhance exocytosis of insulin-containing granules. During the process, influx of glucose ensures sufficient ATP to sustain the stimulatory effect. Additionally, GLP-1 ensures the β cell insulin stores are replenished to prevent exhaustion during secretion by promoting insulin gene transcription, mRNA stability and biosynthesis. GLP-1 also increases β cell mass by promoting proliferation and neogenesis while inhibiting apoptosis. As both type 1 and 2 diabetes are associated with reduction of functional β cells, this effect is desirable in diabetes treatment.
Linezolid Monoamine oxidase inhibitors (MAOIs) including moclobemide, phenelzine, tranylcypromine, selegiline and methylene blue Lithium Sibutramine MDMA (ecstasy) Dextromethorphan Tramadol 5-HTP Pethidine/meperidine St. John's wort Yohimbe Tricyclic antidepressants (TCAs) Serotonin-norepinephrine reuptake inhibitors (SNRIs) Buspirone Triptan Mirtazapine Painkillers of the NSAIDs drug family may interfere and reduce efficiency of SSRIs and may compound the increased risk of gastrointestinal bleeds caused by SSRI use. NSAIDs include:
Sources: en.wikipedia.org
=== Category:EC 6.2 (form carbon–sulfur bonds) === EC 6.2.1.1: Acetate—CoA ligase EC 6.2.1.2: Medium-chain acyl—CoA ligase EC 6.2.1.3: Long-chain-fatty-acid—CoA ligase EC 6.2.1.4: Succinate—CoA ligase (GDP-forming) EC 6.2.1.5: Succinate—CoA ligase (ADP-forming) EC 6.2.1.6: Glutarate—CoA ligase EC 6.2.1.7: Cholate—CoA ligase EC 6.2.1.8: Oxalate—CoA ligase EC 6.2.1.9: Malate—CoA ligase EC 6.2.1.10: Acid—CoA ligase (GDP-forming) EC 6.2.1.11: Biotin—CoA ligase EC 6.2.1.12: 4-Coumarate—CoA ligase EC 6.2.1.13: Acetate—CoA ligase (ADP-forming) EC 6.2.1.14: 6-carboxyhexanoate—CoA ligase EC 6.2.1.15: Arachidonate—CoA ligase EC 6.2.1.16: Acetoacetate—CoA ligase EC 6.2.1.17: Propionate—CoA ligase EC 6.2.1.18: Citrate—CoA ligase EC 6.2.1.19: Long-chain-fatty-acid-luciferin-component ligase EC 6.2.1.20: Long-chain-fatty-acid-(acyl-carrier-protein) ligase EC 6.2.1.21: Transferred entry: 6.2.1.30 EC 6.2.1.22: (citrate (pro-3S)-lyase) ligase EC 6.2.1.23: Dicarboxylate—CoA ligase EC 6.2.1.24: Phytanate—CoA ligase EC 6.2.1.25: Benzoate—CoA ligase EC 6.2.1.26: o-Succinylbenzoate—CoA ligase EC 6.2.1.27: 4-hydroxybenzoate—CoA ligase EC 6.2.1.28: 3-alpha,7-alpha-dihydroxy-5-beta-cholestanate—CoA ligase EC 6.2.1.29: Transferred entry: 6.2.1.7 EC 6.2.1.30: Phenylacetate—CoA ligase EC 6.2.1.31: 2-furoate—CoA ligase EC 6.2.1.32: Anthranilate—CoA ligase EC 6.2.1.33: 4-chlorobenzoate—CoA ligase EC 6.2.1.34: trans-Feruloyl—CoA synthase EC 6.2.1.35: ACP-SH:acetate ligase EC 6.2.1.36: 3-hydroxypropionyl-CoA synthase EC 6.2.1.37: 3-hydroxybenzoate—CoA ligase EC 6.2.1.38: (2,2,3-trimethyl-5-oxocyclopent-3-enyl)acetyl-CoA synthase EC 6.2.1.39: (butirosin acyl-carrier protein)—L-glutamate ligase EC 6.2.1.40: 4-Hydroxybutyrate—CoA ligase EC 6.2.1.41: 3-((3aS,4S,7aS)-7a-methyl-1,5-dioxo-octahydro-1H-inden-4-yl)propanoate—CoA ligase EC 6.2.1.42: 3-oxocholest-4-en-26-oate—CoA ligase EC 6.2.1.43: 2-hydroxy-7-methoxy-5-methyl-1-naphthoate—CoA ligase EC 6.2.1.44: 3-(methylthio)propionyl—CoA ligase EC 6.2.1.45: E1 ubiquitin-activating enzyme EC 6.2.1.46: L-allo-Isoleucine—holo-CmaA peptidyl-carrier protein ligase EC 6.2.1.47: Medium-chain-fatty-acid-(acyl-carrier-protein) ligase EC 6.2.1.48: Carnitine—CoA ligase EC 6.2.1.49: Long-chain fatty acid adenylyltransferase FadD28 EC 6.2.1.50: 4-hydroxybenzoate adenylyltransferase FadD22 EC 6.2.1.51: 4-hydroxyphenylalkanoate adenylyltransferase FadD29 EC 6.2.1.52: L-Firefly luciferin—CoA ligase EC 6.2.1.53: L-Proline—L-prolyl-carrier protein ligase EC 6.2.1.54: D-Alanine—D-alanyl-carrier protein ligase EC 6.2.1.55: E1 SAMP-activating enzyme
Pauling did, however, work on research for the military. He was a principal investigator on 14 OSRD contracts. The National Defense Research Committee called a meeting on October 3, 1940, wanting an instrument that could reliably measure oxygen content in a mixture of gases, so that they could measure oxygen conditions in submarines and airplanes. In response Pauling designed the Pauling oxygen meter, which was developed and manufactured by Arnold O. Beckman, Inc. After the war, Beckman adapted the oxygen analyzers for use in incubators for premature babies. In 1942, Pauling successfully submitted a proposal on "The Chemical Treatment of Protein Solutions in the Attempt to Find a Substitute for Human Serum for Transfusions". His project group, which included Joseph B. Koepfli and Dan H. Campbell, developed a possible replacement for human blood plasma in transfusions: polyoxy gelatin (Oxypolygelatin). Other wartime projects with more direct military applications included work on explosives, rocket propellants and the patent for an armor-piercing shell. In October 1948, Pauling, along with Lee A. DuBridge, William A. Fowler, Max Mason, and Bruce H. Sage, was awarded a Presidential Medal for Merit by President Harry S. Truman. The citation credits him for his "imaginative mind", "brilliant success", and "exceptionally meritorious conduct in the performance of outstanding services". In 1949, he served as president of the American Chemical Society.
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Sources: en.wikipedia.org
It is a synthetic peptide analog of human growth hormone-releasing hormone. It is used clinically to reduce excess visceral abdominal fat in adults with HIV-associated lipodystrophy. It works by stimulating pituitary growth hormone release.
Pivotal trials enrolled adults with HIV and excess visceral abdominal fat, often in the context of antiretroviral therapy. Participants were assessed mainly by computed tomography for visceral adipose tissue. The approved indication remains specific to that population.
Long-term effects on cardiovascular events, mortality, and sustained fat distribution are not well established. Most trials measured changes over months rather than years. Open questions also include whether benefits persist after treatment stops.
特沙莫瑞林是国际非专利名称，指一种经过 N 端修饰的生长激素释放激素类似物。它被归类为合成肽，序列与 GHRH(1-44) 密切相关。该名称不指代任何特定品牌或剂型。