If you have been reading about TH9507 and want a single page that covers the useful parts, this is it: definitions, context, how it is studied, and the questions that come up repeatedly.
Last reviewed on 2025-09-15. Where a claim depends on a specific study, the study is described rather than over-claimed.
Development work on the compound, originally designated TH9507, focused on conditions in which reduced growth hormone signaling is thought to contribute to altered body composition. The United States Food and Drug Administration approved it in 2010 for the treatment of excess visceral abdominal fat in adults with human immunodeficiency virus infection and lipodystrophy. Later research examined other populations, including adults with mild cognitive impairment, where a large trial did not meet its primary endpoints. This mixed record illustrates how a single mechanism can produce clear effects in one setting and inconclusive results in another.
Several related peptides act on the same receptor, including sermorelin, a shorter GHRH fragment, and modified analogs such as CJC-1295 and modified GRF(1-29) that are common in research settings rather than approved products. Tesamorelin differs from growth hormone itself in that it acts upstream, prompting the pituitary to release the hormone through physiological signaling rather than supplying it directly. Terminology in the literature distinguishes GHRH analogs, growth hormone secretagogues, and recombinant growth hormone, although popular discussion often blurs these categories together. Precise naming matters when comparing study results.
在临床研究之外，特沙莫瑞林常被讨论为生长激素分泌促进剂，但这一说法需要限定。它并不等同于生长激素本身，也不属于普通减重药物。部分研究关注其减少腹部脂肪和改善脂质谱的潜力，另一些研究则关注胰岛素抵抗和 IGF-1 升高等信号。这些效应的临床意义仍在评估中，尚未形成统一结论。
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 class | Synthetic 44-residue GHRH analog | Sequence matches human GHRH(1-44); differs only at the N-terminus |
| Nominal molecular mass | Approximately 5,136 Da (free base) | Small variation arises from counterion and salt form |
| Appearance | White to off-white lyophilized powder | Supplied in single-use vials intended for reconstitution |
| Solubility class | Freely soluble in water | Practically insoluble in nonpolar organic solvents |
| Typical storage | 2 to 8 degrees Celsius, protected from light | Reconstituted material is handled according to label instructions |
作用位置在垂体前叶。tesamorelin 与 GHRH 受体结合后激活腺苷酸环化酶，升高细胞内 cAMP，再经蛋白激酶 A 通路促进生长激素的合成与释放。由于它作用于内源调控节点，生长激素仍以脉冲方式分泌，而不是被持续抬升到固定水平。生长激素随后在肝脏等组织诱导胰岛素样生长因子 1 产生，构成完整的生长激素轴响应。
研究背景集中在特定人群的体成分改变，尤其是与脂肪分布异常相关的内脏脂肪堆积。不同地区对它的监管状态与获批适应症并不一致，部分市场仅限特定诊断人群使用。在一般人群中的长期效应、与其他激素的相互作用以及停药后的维持情况仍属开放问题，现有数据不足以给出普遍结论。
Tesamorelin is a synthetic peptide of forty-four amino acids whose sequence reproduces human growth hormone-releasing hormone. Its distinguishing feature sits at the amino terminus, where a trans-3-hexenoyl group replaces the free amine. That acylation slows cleavage by dipeptidyl peptidase IV, an enzyme that otherwise removes the first two residues and inactivates the natural hormone quickly. The modified peptide therefore persists longer in circulation while keeping the same receptor target. It is handled as a lyophilized solid and dissolved shortly before use.
Signaling begins at the GHRH receptor, a class B G protein-coupled receptor displayed on somatotroph cells of the anterior pituitary. Receptor occupancy activates Gs proteins, which raise adenylyl cyclase activity and intracellular cyclic AMP, in turn driving protein kinase A dependent pathways. The downstream output is synthesis and pulsatile secretion of growth hormone into the bloodstream. Hepatic tissue and peripheral sites respond by increasing insulin-like growth factor 1 production. Somatostatin and IGF-1 itself supply negative feedback that caps the size and duration of each secretory burst.
=== Mechanism of action === Fomepizole is a competitive inhibitor of the enzyme alcohol dehydrogenase, found in the liver. This enzyme plays a key role in the metabolism of ethylene glycol, and of methanol.
Endocrine glands derive from all three germ layers. The natural decrease in function of the female's ovaries during late middle age results in menopause. The efficiency of all endocrine glands seems to decrease gradually as ageing occurs. This leads to a generalized increase in the incidence of diabetes mellitus and a lower metabolic rate.
This album cover... I like to refer to it as "revenge". The song 'Dirt' was written to a certain person who basically buried my ass, so the woman on the album cover is kinda the portrayal of that person being sucked down into the dirt (laughs), instead of me. The picture is the spitting image of her, and that wasn't even planned. Actually, I was pretty angry about it when I first saw it – she's not happy about it either (laughs). It was real eerie. The cover was referenced on the music video for Alice in Chains' 2009 single "A Looking in View". At the 6:55 mark of the video, a woman (played by Sacha Senisch) is seen lying on a cracked desert floor similarly to Dirt's cover. "A Looking in View" was featured on Alice in Chains' fourth studio album, Black Gives Way to Blue, released exactly 17 years after Dirt, on September 29, 2009.
The historian Sergio Luzzatto recounted that in 1919, Maria De Vito (the cousin of the local pharmacist Valentini Vista at Foggia) testified that the young Pio bought carbolic acid and the great quantity of four grams of veratrine "without presenting any medical prescription whatsoever". Pio maintained that the carbolic acid was used to sterilize syringes used for medical treatments and that after being subjected to a practical joke where veratrine was mixed with snuff tobacco, causing uncontrollable sneezing after ingestion, he decided to acquire his own quantity of the substance in order to play the same joke on his confreres. Amico Bignami in a report wrote that the wounds were caused by "neurotic necrosis". He suggested they had been inflicted unconsciously by suggestion and artificially maintained by iodine that Pio had used as a disinfectant. In 1922, physician Agostino Gemelli went to visit Padre Pio where he observed and interviewed him, but Gemelli was denied the right to physically examine the stigmata without an authorization from the Holy Office. Gemelli, irritated and offended for not being allowed to directly examine the stigmata, wrote while reviewing the previous reports, that Pio was a hysteric and his stigmata were self-induced, not of supernatural origin. Gemelli also speculated that his wounds were kept open with carbolic acid. Giorgio Festa, who examined the stigmata of the friar on October 28, 1919, wrote in his report that they "are not the product of a trauma of external origin, nor are they due to the application of potently irritating chemicals".
Consider the case of a nuclide A that decays into another B by some process A → B (emission of other particles, like electron neutrinos νe and electrons e− as in beta decay, are irrelevant in what follows). The decay of an unstable nucleus is entirely random in time so it is impossible to predict when a particular atom will decay. However, it is equally likely to decay at any instant in time. Therefore, given a sample of a particular radioisotope, the number of decay events −dN expected to occur in a small interval of time dt is proportional to the number of atoms present N, that is
Sources: en.wikipedia.org
=== Chlorohydrin process of production of ethylene oxide === Although the chlorohydrin process is almost entirely superseded in the industry by the direct oxidation of ethylene, the knowledge of this method is still important for educational reasons and because it is still used in the production of propylene oxide. The process consists of three major steps: synthesis of ethylene chlorohydrin, dehydrochlorination of ethylene chlorohydrin to ethylene oxide and purification of ethylene oxide. Those steps are carried continuously. In the first column, hypochlorination of ethylene is carried out as follows:
Gerald Kaufman (21 June 1930 – 26 February 2017) politician, journalist, broadcaster and author who served as a minister throughout the Labour government of 1974 to 1979; elected as member of parliament (MP) at the 1970 general election, he became Father of the House and served until 2017; served as chair of the Culture, Media and Sport Committee; was knighted in 2004; was assistant general secretary of Fabian Society; was leader writer on Daily Mirror and journalist on New Statesman; also worked as television writer, contributing to BBC Television's satirical programme That Was The Week That Was; was member of Poale Zion (later the Jewish Labour Movement) but became disillusioned with Israel because of its treatment of the Palestinian territories. Michael Kauffmann FBA (5 February 1931 – 30 June 2023), art historian and author of numerous scholarly monographs and academic publications; Director of the Courtauld Institute, London and Fellow of the British Academy; held posts at the Warburg Institute, Manchester City Art Gallery, and the Victoria and Albert Museum; was son of noted art historian, art dealer and scholar Arthur Kauffmann, both of German Jewish ancestry; died on 30 June 2023, at the age of 92. Adam Kay (writer) (born 12 June 1980) comedy writer, author, comedian and former doctor. His television writing credits include Crims, Mrs. Brown's Boys and Mitchell and Webb. He is best known as author of the number-one bestselling book This Is Going to Hurt.
Pilonidal disease is a type of skin infection that typically occurs as a cyst between the cheeks of the buttocks and often at the upper end. Symptoms may include pain, swelling, and redness. There may also be drainage of fluid, but rarely a fever. Risk factors include obesity, family history, prolonged sitting, greater amounts of hair, and not enough exercise. The underlying mechanism is believed to involve a mechanical process where hair and skin debris get sucked into the subcutaneous tissues through skin openings called pits. Diagnosis is based on symptoms and examination. If there is an infection, treatment is generally by incision and drainage just off the midline. Shaving the area and laser hair removal may prevent recurrence. More extensive surgery may be required if the disease recurs. Antibiotics are usually not needed. Without treatment, the condition may remain long-term. About 3 per 10,000 people per year are affected, and it occurs more often in males than females. Young adults are most commonly affected. The term pilonidal means 'nest of hair'. The condition was first described in 1833.
Design qualification (DQ)- Demonstrates that the proposed design (or the existing design for an off-the-shelf item) will satisfy all the requirements that are defined and detailed in the User Requirements Specification (URS). Satisfactory execution of the DQ is a mandatory requirement before construction (or procurement) of the new design can be authorised. Installation qualification (IQ) – Demonstrates that the process or equipment meets all specifications, is installed correctly, and all required components and documentation needed for continued operation are installed and in place. Operational qualification (OQ) – Demonstrates that all facets of the process or equipment are operating correctly. Performance qualification (PQ) – Demonstrates that the process or equipment performs as intended in a consistent manner over time. Component qualification (CQ) – is a relatively new term developed in 2005. This term refers to the manufacturing of auxiliary components to ensure that they are manufactured to the correct design criteria. This could include packaging components such as folding cartons, shipping cases, labels or even phase change material. All of these components must have some type of random inspection to ensure that the third party manufacturer's process is consistently producing components that are used in the world of GMP at drug or biologic manufacturer. There are instances when it is more expedient and efficient to transfer some tests or inspections from the IQ to the OQ, or from the OQ to the PQ.
Sources: en.wikipedia.org
It is a synthetic peptide built from 44 amino acids arranged in the same order as human growth hormone-releasing hormone. A short fatty-acid chain, described as a trans-3-hexenoyl group, is attached to the first amino acid. The finished molecule is formulated as a sterile powder that is dissolved before use.
No. It is a releasing-factor analog that signals the pituitary gland to secrete growth hormone, whereas recombinant growth hormone is the hormone itself administered directly. The two are chemically distinct and act at different points in the same endocrine pathway. This distinction is often lost in informal discussion.
Native growth hormone-releasing hormone is broken down within minutes by dipeptidyl peptidase-4 in the bloodstream. Adding the hexenoyl group at the N-terminus shields the peptide from that enzyme. The modification does not change the receptor it targets, only how long the peptide survives in circulation.
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。