If you have been reading about somatotroph 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.
Updated 2025-09-07. Numbers and descriptions here follow the published literature rather than marketing material.
Studies of the compound rely on imaging and laboratory endpoints rather than on symptoms alone. Visceral adipose tissue is usually quantified by computed tomography or magnetic resonance imaging at the level of the abdomen, with waist circumference serving as a cheaper but less specific proxy. Blood work tracks insulin-like growth factor 1, fasting glucose, glycated hemoglobin, and lipid fractions. In the pivotal trials the imaging endpoint fell by roughly fifteen to twenty percent over six months, subcutaneous fat changed little, and the visceral fat returned toward baseline after treatment stopped, a pattern that shapes how clinicians discuss durability.
Whether the drug improves hard clinical outcomes is not settled. No completed trial has shown a reduction in heart attacks or strokes among treated patients, although a dedicated cardiovascular outcomes study has been discussed in the literature. Investigators have also examined hepatic fat in people with HIV and fatty liver disease, cognitive measures in small cohorts, and changes in bone density. Regulatory labeling emphasizes monitoring of insulin-like growth factor 1 because supraphysiologic levels raise questions about tissue growth, and the clinical significance of that signal remains an open question rather than a demonstrated harm.
A Phase 3 program led to regulatory approval in the United States in 2010 for reduction of excess visceral abdominal fat in adults with HIV and lipodystrophy. Subsequent studies examined effects on liver fat, muscle area, and metabolic markers, with mixed findings for some endpoints. Long-term cardiovascular outcomes and effects on mortality remain uncertain because most trials were relatively short and focused on imaging-based fat measurements. Use in populations without HIV has been studied experimentally but is not part of the approved indication.
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.
| Property | Value | Notes |
|---|---|---|
| Appearance | White to off-white powder | Lyophilized cake in single-use vials |
| Solubility class | Freely soluble in water | Reconstituted with sterile diluent before injection |
| Typical storage temperature | 2 to 8 degrees Celsius | Before reconstitution; protect from light |
| Typical analytical method | Reversed-phase high-performance liquid chromatography | Purity and related-substance testing |
| Identity confirmation | Mass spectrometry | Observed mass near 5.1 kDa for the intact peptide |
Pharmacodynamic studies show that tesamorelin reduces visceral adipose tissue more than subcutaneous adipose tissue in the studied population. This selectivity may relate to differences in blood flow and hormone sensitivity between fat depots. Effects on glucose metabolism and insulin sensitivity have been investigated, with some trials reporting modest changes and others showing stability. The precise relationship between growth hormone exposure, IGF-1 levels, and visceral fat loss remains an active area of analysis.
Tesamorelin binds to growth hormone-releasing hormone receptors on somatotroph cells in the anterior pituitary. Receptor activation increases intracellular cyclic AMP and promotes synthesis and secretion of growth hormone. Because the peptide mimics endogenous GHRH, it amplifies the normal pulsatile release of growth hormone rather than providing exogenous growth hormone directly. This upstream action distinguishes tesamorelin from recombinant growth hormone preparations and from growth hormone secretagogues that act at different receptors.
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。
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。
In the 19th century, it was common to give children a mixture of sulfur and treacle as a remedy. The sulfur in it was meant to act as a spring tonic and a laxative. Reportedly foul-tasting, "brimstone and treacle" was considered by many an unpleasant childhood experience, and it is mentioned as such in a number of cultural references, including Mary Poppins, the works of Charles Dickens, and the controversial 1976 British play of the same name. Madam C. J. Walker, who became the first female millionnaire by selling hair products for Black women in the early 1900s, notably used sulfur as an ingredient in her products. Sulfur was also used in fumigations against the plague. In the early 20th century, during the Third Plague Pandemic, devices like the Clayton machine, used in harbors across the world, or the Sulfurozador in Latin America, were used to spread sulfur dioxide gas to kill insects, rats and pathogens.
In April 2002, Yosri Fouda of Al Jazeera met al-Qaeda member Khalid Sheikh Mohammed and bin al-Shibh, who were in hiding, and they admitted to him their involvement in the attacks. Mohammed had been an organizer and financier of al-Qaeda's 1993 bombing of the World Trade Center, and he was the uncle of Ramzi Yousef, the lead bomber in that attack. Mohammed and Yousef planned another terrorist attack, the Bojinka plot, for January 1995. Despite its failure, and Yousef's imprisonment by the U.S. afterwards, the plot would influence the later September 11 attacks. The 2004 9/11 Commission Report determined that the animosity that Mohammed, the principal architect of 9/11, felt towards the U.S. had stemmed from his "violent disagreement with U.S. foreign policy favoring Israel."
The resulting "base process" description provides the necessary data for the determination of preliminary raw material and product specifications, the manufacture of semi commercial quantities in the pilot plant, the assessment of the ecological impact, the regulatory submissions and technology transfer to manufacture at industrial scale, and an estimate of the manufacturing costs in an industrial-scale plant. If the base process is provided by the customer as part of the technology transfer, process research has to optimize it so that it can be transferred to the bench-scale laboratory or pilot plant. Furthermore, it has to be adapted to the specific characteristics of available production trains. Another task is the scaling of development processes. Depending on the volume requirements, three different types of equipment are used for process research, development and optimization: bench-scale laboratories for gram to 100 gram, kilo-labs for kg to 10 kg and pilot plants for 100 kg to ton quantities. Particularities of laboratory processes that have to be eliminated include the use of large numbers of unit operations, dilute reaction mixtures, vast quantities of solvents for extraction, evaporation to dryness, and drying of solutions with hygroscopic salts. Although modern reaction calorimeters may foresee the effects of these different conditions to a certain extent, a direct transfer of a process from the laboratory to the industrial scale is not recommended, because of the inherent safety, environmental, and economic risks.
=== Ethylene vinyl alcohol co-polymer in dimethyl sulfoxide === 8% ethylene vinyl alcohol co-polymer in dimethyl sulfoxide solution has been used. For FI it is marketed as Onyx34, and for gastroesophageal reflux disease it is marketed as Enteryx. After injection, it forms a spongy solid mass via solidification of the hydrophobic copolymer. This occurs because the co-polymer is hydrophic, and the solvent is dissolved away upon contact with tissues. In one publication inter-sphincteric injection site was used via the inter-sphincteric route.
Sinosauropteryx was a small bipedal theropod, noted for its short arms, large first finger (thumbs), and long tail. The taxon includes some of the smallest known adult non-avian theropod specimens, with the holotype specimen measuring only 68 cm (27 in) in length, including the tail. However, this individual was relatively immature. The longest known specimen reaches up to 1.07 m (3.5 ft) in length, with an estimated weight of 0.55 kg (1.2 lb). A subsequent paper estimated its mass to be 0.99 kg (2.2 lb). Sinosauropteryx was anatomically similar to Compsognathus, differing from its European relatives in its proportions. The skull of Sinosauropteryx was 15% longer than its thigh bones, unlike in Compsognathus, where the skull and thigh bones are approximately equivalent in length. The arms of Sinosauropteryx (humerus and radius) were only 30% the length of its legs (thigh bone and shin), compared to 40% in Compsognathus. Additionally, Sinosauropteryx had several features unique among all other theropods. It had 64 vertebrae in its tail. This high number made its tail the longest relative to body length of any theropod. Its hands were long compared to its arms, about 84% to 91% of the length of the rest of the arm (humerus and radius), and half the length of the foot. The first and second digits were about the same length, with a large claw on the first digit. The first fingers were large, being both longer and thicker than either of the bones of the forearm.
Sources: en.wikipedia.org
== Early life == Ali Larter was born in Cherry Hill, New Jersey to Margaret Walker, a realtor, and Danforth Larter, a trucking executive. She attended Carusi Middle School and went to Cherry Hill High School West, but she did not finish her senior year of high school due to being too busy modeling. Her mother accompanied her everywhere until she turned 18. Her parents have since moved to Allentown, Pennsylvania. Larter said she was a tomboy until she turned 13.
Early work on the study of the chemistry of rutherfordium focused on gas thermochromatography and measurement of relative deposition temperature adsorption curves. The initial work was carried out at Dubna in an attempt to reaffirm their discovery of the element. Recent work is more reliable regarding the identification of the parent rutherfordium radioisotopes. The isotope 261mRf has been used for these studies, though the long-lived 267Rf (produced in the decay chain of 291Lv, 287Fl, and 283Cn) may be advantageous for future experiments. The experiments relied on the expectation that rutherfordium would be a 6d element in group 4 and should therefore form a volatile molecular tetrachloride, that would be tetrahedral in shape. Rutherfordium(IV) chloride is more volatile than its lighter homologue hafnium(IV) chloride (HfCl4) because its bonds are more covalent. A series of experiments confirmed that rutherfordium behaves as a typical member of group 4, forming a tetravalent chloride (RfCl4) and bromide (RfBr4) as well as an oxychloride (RfOCl2). A decreased volatility was observed for RfCl4 when potassium chloride is provided as the solid phase instead of gas, highly indicative of the formation of nonvolatile K2RfCl6 mixed salt.
Machine learning algorithms require large amounts of data. The techniques used to acquire this data have raised concerns about privacy, surveillance and copyright. AI-powered devices and services, such as virtual assistants and IoT products, continuously collect personal information, raising concerns about intrusive data gathering and unauthorised access by third parties. The loss of privacy is further exacerbated by AI's ability to process and combine vast amounts of data, potentially leading to a surveillance society where individual activities are constantly monitored and analysed without adequate safeguards or transparency. Sensitive user data collected may include online activity records, geolocation data, video, or audio. For example, in order to build speech recognition algorithms, Amazon has recorded millions of private conversations and allowed temporary workers to listen to and transcribe some of them. Opinions about this widespread surveillance range from those who see it as a necessary evil to those for whom it is clearly unethical and a violation of the right to privacy. AI developers argue that this is the only way to deliver valuable applications and have developed several techniques that attempt to preserve privacy while still obtaining the data, such as data aggregation, de-identification and differential privacy. Since 2016, some privacy experts, such as Cynthia Dwork, have begun to view privacy in terms of fairness.
On 18 January, ambassadors from all 27 member states of the EU held an emergency meeting on Trump's threats. After Trump reversed his decision on implementing tariffs, EU officials were sceptical, but announced on 22 January that approval of the trade agreement would resume.
=== Post-injection delirium/sedation syndrome === Post-injection delirium/sedation syndrome (PDSS) is a serious adverse event previously considered specific to olanzapine pamoate (Zyprexa Relprevv) among LAI antipsychotics. PDSS is characterized by heavy sedation, possible coma, and/or delirium following injection, believed to result from inadvertent intravascular drug entry. Early industry-sponsored analyses of clinical trial and post-marketing databases found no cases of PDSS in patients receiving paliperidone palmitate across 10 completed trials (3,817 subjects, 33,906 injections), leading to the conclusion that PDSS was not associated with paliperidone palmitate. However, a 2024 post-marketing case report published in the Journal of Clinical Psychopharmacology documented a case of PDSS following paliperidone palmitate administration. A 48-year-old male patient with bipolar affective disorder received two 234 mg loading doses of paliperidone palmitate (Invega Sustenna) one week apart. Two days after the second injection, he developed trembling, rigidity, weakness, and drowsiness. His symptoms worsened over the following days to include slurred speech and difficulty walking and talking. The authors recommended routine measurement of baseline antipsychotic blood levels as part of long-acting injectable management to help identify patients at elevated risk.
Sources: en.wikipedia.org
=== Bulgaria === Following the 2013 Bulgarian protests against the Borisov cabinet of Prime Minister Boyko Borisov over government austerity measures encouraged by the European Union and the International Monetary Fund during the recession and high utility bills, the Borisov government resigned and brought forward the Bulgarian parliamentary election, 2013, which saw a very low voter turnout. Though Borisov's party Citizens for European Development of Bulgaria (GERB) won a plurality with 97 deputies in the National Assembly, it could not form a government and gave up its mandate. The Bulgarian Socialist Party (BSP) led the government under technocratic prime minister Plamen Oresharski. The left-wing government of Plamen Oresharski was approved by the 120 members of the BSP and the Movement for Rights and Freedoms. Outside support to the Oresharski Government was also given by nationalist party Ataka, dubbed by some sources as the "hidden coalition partner", or Siderov's "golden finger", and regarded as a key instrument for allowing the Parliament to proceed with its functions, until June 2014.
Five amino acids possess a charge at neutral pH. Often these side chains appear at the surfaces on proteins to enable their solubility in water, and side chains with opposite charges form important electrostatic contacts called salt bridges that maintain structures within a single protein or between interfacing proteins. Many proteins bind metal into their structures specifically, and these interactions are commonly mediated by charged side chains such as aspartate, glutamate and histidine. Under certain conditions, each ion-forming group can be charged, forming double salts. The two negatively charged amino acids at neutral pH are aspartate (Asp, D) and glutamate (Glu, E). The anionic carboxylate groups behave as Brønsted bases in most circumstances. Enzymes in very low pH environments, like the aspartic protease pepsin in mammalian stomachs, may have catalytic aspartate or glutamate residues that act as Brønsted acids.
Counter-Strike: Source was met with positive reviews from professional critics. Metacritic, a review aggregator website, awarded Source a rating of 88 out of a possible 100 based on 9 critic's reviews. IGN praised the game for its graphical improvements; Jeff Haynes said the game was "much more detailed, featuring many more polygons per model, bump mapping and other graphical enhancements" compared to the original.
== Uses == The only approved use of the thiazolidinediones is in diabetes mellitus type 2. According to a 2014 Cochrane systematic review of four randomized controlled trials, PPARγ-agonists may be effective in preventing further strokes in those who have already had a stroke or a transient ischemic attack (TIA) and may stabilize atherosclerotic plaques in the carotid arteries.
Sources: en.wikipedia.org
It mimics a natural hypothalamic signal that tells the pituitary to release growth hormone. The result is a rise in circulating growth hormone and, indirectly, in insulin-like growth factor 1. Over weeks of treatment this shift is associated with a selective decrease in fat stored inside the abdomen.
The primary measure is usually a cross-sectional abdominal scan that separates internal fat from fat just under the skin. Waist circumference and body weight are recorded as secondary measures because they are easy to obtain but do not distinguish the two fat compartments. Hormone and metabolic blood tests are collected alongside the imaging.
Available follow-up data indicate that visceral fat drifts back toward pretreatment levels once injections stop. The change is therefore best described as treatment-dependent rather than permanent. Investigators continue to debate whether intermittent or repeated courses would preserve any benefit.
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.