This is a working overview of triple agonist, written for readers who want more than a one-paragraph summary but less than a textbook.
This page was last updated on 2026-05-19 and is reviewed periodically as new material appears.
Development has progressed through early- and mid-stage human studies in adults with obesity and with type 2 diabetes. Published phase 2 data reported reductions in body weight and improvements in glycemic markers over the treatment period. No regulatory agency has approved the compound for any indication, and it remains available only within controlled research settings. Whether benefits observed in trials translate into durable outcomes after treatment stops is not yet established.
Retatrutide is an investigational synthetic peptide that acts as an agonist at three distinct G protein-coupled receptors. It combines activity at the glucagon-like peptide-1 receptor, the glucose-dependent insulinotropic polypeptide receptor, and the glucagon receptor within a single molecule. This multi-receptor profile distinguishes it from earlier incretin-based compounds that engage one or two of these pathways. Researchers designed the molecule to test whether simultaneous activation produces greater metabolic effects than single or dual agonism alone.
化学修饰延长了分子在体内的停留时间，使较低频次的给药安排成为可能。脂肪酸侧链通过与白蛋白结合延缓清除，非天然氨基酸则降低酶解速率。这些修饰同时改变分子的溶解性与稳定性，需要在制剂设计和储存条件中一并考虑。修饰引入的免疫原性风险也属于开发过程中需要评估的项目。
该化合物处于临床试验阶段，尚未在多数地区取得上市许可。公开信息主要来自企业公告、学术会议摘要与试验注册平台记录，完整数据仍在逐步披露。关于长期疗效与安全性的判断，需要等待规模更大、随访更久的研究结果，目前不宜对最终结论作出预判。
| Property | Value | Notes |
|---|---|---|
| Molecular class | Synthetic peptide | Not a small molecule |
| Receptor targets | GLP-1, GIP, glucagon | Triple agonist activity |
| Appearance | White to off-white powder | Lyophilized solid |
| Solubility | Soluble in water | Also in aqueous buffers |
| Storage | −20 °C or below | Protect from light and moisture |
与仅靶向单一受体的同类药物相比，瑞他鲁肽增加胰高血糖素受体成分，理论上可提高能量消耗并改变脂肪分布。临床中观察到的体重变化是否主要来自该额外机制，目前尚无定论。胃肠道反应是该类药物常见不良事件，试验中通过剂量递增和监测进行管理。停药后体重反弹、个体差异和长期耐受性仍需更多数据。
瑞他鲁肽是一种在研合成肽，同时作用于胰高血糖素样肽-1、葡萄糖依赖性促胰岛素多肽和胰高血糖素受体。该分子属于多受体激动剂类别，尚未获得任何监管机构的上市批准。当前临床开发主要针对肥胖和2型糖尿病，研究代号为LY3437943。已确立的信息包括受体靶点和部分中期试验结果；最终疗效、长期安全性和适用人群仍属开放问题。
Several questions remain unresolved. It is not yet known whether the compound reduces cardiovascular events or mortality, because outcome studies require long follow-up. The durability of weight reduction after treatment withdrawal is uncertain, and rebound has been observed with other incretin-based therapies. Long-term safety data covering several years are limited. Effects in adolescents, in pregnancy, and in people with significant kidney or liver impairment have not been characterized in published reports.
Randomized studies of retatrutide measure change in body weight as a percentage of baseline, along with absolute weight loss. Glycemic endpoints include hemoglobin A1c and fasting plasma glucose. Investigators also track blood pressure, lipid fractions, and liver fat content to characterize effects beyond weight alone. Trial designs typically use double-blind, placebo-controlled groups with periodic dose escalation, and they record adverse events throughout both treatment and follow-up periods.
多肽类化合物的表征通常依赖色谱与质谱联用技术。反相高效液相色谱用于评估纯度与有关物质，质谱用于确认分子量，肽图分析通过酶解碎片比对验证一级结构。这些手段组合使用，可以把目标产物与降解产物或类似物区分开来。单一方法往往不足以完成完整确认。
稳定性研究一般关注脱酰胺、氧化与聚集三类降解路径。脱酰胺多发生在天冬酰胺残基上，氧化常涉及甲硫氨酸与色氨酸，聚集则与浓度、温度以及容器界面接触有关。强制降解实验用于识别分子中较敏感的位点。这些结果会直接影响储存条件的设定与有效期的判断。
冻干粉通常在低温环境下保存，复溶之后需要按指定条件在较短时间内使用。反复冻融和剧烈振荡可能促进聚集，低吸附容器则能减少多肽在管壁上的损失。批号、日期与处理条件的完整记录，是后续复核与问题追溯的基础。
临床研究通常测量体重、腰围、空腹血糖、糖化血红蛋白和血脂，并记录不良事件。药代动力学评估关注浓度-时间曲线，药效动力学评估关注代谢标志物变化。体重下降由能量摄入减少、能量消耗变化和脂肪组织重塑共同造成，具体权重仍不明确。研究之间的终点定义和随访时长差异使横向比较复杂。
瑞他鲁肽同时激活GLP-1受体、GIP受体和胰高血糖素受体，这三者均属于B类G蛋白偶联受体。受体激活后主要经cAMP信号通路传递效应。GLP-1成分与食欲抑制和胃排空延缓相关，GIP成分影响脂肪组织与胰岛素分泌，胰高血糖素成分则促进肝糖输出和能量消耗。各受体贡献的相对比例在人体中尚未完全量化。
Susan M Gaines is an American writer. She is the author of the novels Accidentals (2020) and Carbon Dreams (2001), and co-author with Geoffrey Eglinton and Jurgen Rullkötter of the science book Echoes of Life: What Fossil Molecules Reveal about Earth History (2009). Her short stories have been nominated twice for the Pushcart Prize. She is a former fellow of the Hanse Institute for Advanced Study in Germany. In 2018, she was awarded a Suffrage Science Award for women in science and science writers who have inspired others.
==== Member of the Royal Victorian Order (MVO) ==== Russell Adams, , Custodian of California Stores, Royal Collection, Royal Household. Captain Andrew Mark Aspden, Royal Navy, lately Principal Private Secretary to The Duke and Duchess of Edinburgh. Ian Charles Bartlett, Clerk of the Works, Westminster Abbey, on the occasion of the Coronation of Their Majesties The King and The Queen. Nicholas John Birch, Sergeant, Metropolitan Police Service. For services to Royalty and Specialist Protection. Ian Leslie Bullock, , Security Officer Team Leader, Palace of Holyroodhouse. Emma Jane Clarke, Secretary, Royal Farms, Windsor. Nicola Charlotte Craig, Royal Borough of Windsor and Maidenhead, on the occasion of the Coronation Concert. Andrew John Cranidge, Superintendent, Thames Valley Police, on the occasion of the Coronation Concert. Anne Maria Curran, Personal and Administration Assistant, Superintendent's Office, Windsor Castle. Sarah Louise Davis, Head of Press and Marketing, Royal Collection, Royal Household. Julie Elizabeth Denby, lately Deputy Clerk/Administrator, Greater Manchester Lieutenancy. Michael Robert Duncan, lately Special Project Advisor, Royal Household, on the occasion of the Coronation of Their Majesties The King and The Queen. Hannah Elizabeth Evans, Programme Manager, Household of The Princess Royal. David Irwin Foy, Stud Groom, Royal Paddocks, Hampton Court Palace. Christopher William Andrew Hallworth, Senior Business Applications and Infrastructure Manager, Royal Collection, Royal Household.
On 30 June 2018, Charlie Rowley and Dawn Sturgess were found unconscious at a house in Amesbury, Wiltshire, about eight miles from the Salisbury poisoning site. On 4 July 2018, police said that the pair had been poisoned with the same nerve agent as ex-Russian spy Sergei Skripal. On 8 July 2018, Sturgess died as a result of the poisoning. Rowley regained consciousness and began recovering in hospital. He told his brother Matthew the nerve agent had been in a small perfume or aftershave bottle, which they had found in a park about nine days before spraying themselves with it. The police later closed and fingertip-searched Queen Elizabeth Gardens in Salisbury.
On 14 March, an international group of researchers presented a preliminary analysis at a meeting of the World Health Organization's Scientific Advisory Group for Origins of Novel Pathogens, at which Chinese COVID-19 researchers were also present. On the sixteenth, George Gao, the former head of the CCDC and lead author on the February 2022 preprint, told Science that there was "nothing new" in the raw data, and refused to answer questions about why his research team had removed it from the database. On 17 March, the WHO director-general said that the data should have been shared three years earlier, and called on China to be more transparent in its data-sharing. There exists further data from further samples which has not yet been made public. Maria Van Kerkhove, the WHO's COVID-19 technical lead, called for it to be made public immediately (see Huanan live-animal market#Swabs).
Sources: en.wikipedia.org
== Telomeres and their importance to the company == Telomeres are part of our DNA and are found at the ends of chromosomes. Their function is to protect our DNA during each cell division by preventing chromosomes from adhering to each other or from losing important information. They represent the most precise biomarker to measure aging. Telomere deterioration has been associated with the ageing process and many other diseases. Over the years, every time a cell divides, our telomeres successively shorten up to a point where the cells cannot divide any more. Subsequently, they either undergo a process called apoptosis (cells progressively die) or go into senescence (they lose their function). Many studies link long telomeres and a slower rate of telomere shortening with greater longevity. For example, research done on mice showed that individuals with hyper-long telomeres lived 13% longer than those with normal telomeres. However, they also store less fat, which also contributes to greater longevity. Due to the impact, they have at the cellular level, the length of telomeres and their rate of shortening is considered a relevant biomarker for assessing the state of aging of the entire organism.
Proton-transfer-reaction mass spectrometry (PTR-MS) is an analytical chemistry technique that uses gas phase hydronium reagent ions which are produced in an ion source. PTR-MS is used for online monitoring of volatile organic compounds (VOCs) in ambient air and was developed in 1995 by scientists at the Institut für Ionenphysik at the Leopold-Franzens University in Innsbruck, Austria. A PTR-MS instrument consists of an ion source that is directly connected to a drift tube (in contrast to SIFT-MS no mass filter is interconnected) and an analyzing system (quadrupole mass analyzer or time-of-flight mass spectrometer). Commercially available PTR-MS instruments have a response time of about 100 ms and reach a detection limit in the single digit pptv or even ppqv region. Established fields of application are environmental research, food and flavor science, biological research, medicine, security, cleanroom monitoring, etc.
== Regional research stations == Captain Pawan Kumar Extension campus, Jind: Captain Pawan Kumar Extension campus is at Badhana village in Jind district for which INR46 crore (460 million) was released in 2018. Regional Research Station, Ambala: It is located at Naraingarh in Ambala district. Regional Research Station, Jhajjar: located at Jhajjar district. RMRC Mushroom Research Center, Murthal in Sonepat
=== Debate over origins === Murdijati Gardjito, a food historian at Gadjah Mada University, argued that tempeh was made by native Javanese people and that its preparation predates the introduction of Chinese-style tofu products. Some ancient texts mention tempe dhele, old Javanese for 'native soybean tempeh'; dhele was used to refer to the native soybean variety. White soybeans that are used to make most tempe dhele today used to be called dhele putih ('white soybeans'), and were only available in Java centuries later. Mary Astuti, a food historian at Gadjah Mada University specializing in tempeh, argued that the native variety of soybean had been grown before the Chinese arrived in the region. Sri Tandjung noted that Javanese had been eating cooked (native black) soybeans since the 12th century. By the 16th or the 19th century, depending on which period of time the writer of Serat Centhini referred to, Javanese people had mastered the art of cooking with tempeh, when it was not only eaten as is, but converted into different types of dishes, showing a full understanding and mastery of the food product. Gardjito noted that Javanese noble families rarely wrote about tempeh in ancient texts because it had never been a part of royal cuisine, but rather a staple food of the lower classes. Indonesian historian Ong Hok Ham suggests that tempeh might have been produced as a byproduct of tahu, the Indonesian word for tofu.
All sport in South Africa under apartheid was segregated by race, with separate clubs and governing bodies. Only white bodies were affiliated to the South African Olympic and Empire [later Commonwealth] Games Association (SAOEGA, later SAOCGA) so only white South Africans competed at the Olympic Games and the Empire (later Commonwealth) Games. The IOC under Avery Brundage regarded this as an internal matter for South Africa, and, committed to keeping politics and sports separate, took no action. From 1948, black athletes and their federations complained to the IOC about their exclusion, but were told to take the matter up with the SAOCGA. In the 1950s, NOCs from the Eastern Bloc led by the Soviet Union began to question this stance. With the decolonisation of Africa from the late 1950s, NOCs from newly independent states opposed to apartheid began affiliating to the IOC. However, the IOC itself was not representative of NOCs but rather a group of co-opted individuals, still mostly from First World countries. On the other hand, the international federations (IFs), the governing bodies of the Olympic sports, were quicker to give a voice to newer members.
Sources: en.wikipedia.org
The colony was further expanded in 1898 when the United Kingdom obtained a 99-year lease of the New Territories. The University of Hong Kong was established in 1911 as the territory's first institution of higher education. Kai Tak Airport began operation in 1924, and the colony avoided a prolonged economic downturn after the 1925–26 Canton–Hong Kong strike. At the start of the Second Sino-Japanese War in 1937, Governor Geoffry Northcote declared Hong Kong a neutral zone to safeguard its status as a free port. The colonial government prepared for a possible attack, evacuating all British women and children in 1940. The Imperial Japanese Army attacked Hong Kong on 8 December 1941, the same morning as its attack on Pearl Harbor. Hong Kong was occupied by Japan for almost four years before the British resumed control on 30 August 1945.
=== Reduction of endogenous quinones === NQO1 plays a role in ubiquinone and vitamin E quinone metabolism. These quinones protect cellular membranes from peroxidative injury in their reduced state. Furthermore, reduced forms of ubiquinone and vitamin E quinone have been shown to possess antioxidant properties that are superior to their non-reduced forms.
Played in his 52nd Masters Tournament at Augusta National in April 2009, extending his record of for most Masters appearances Inducted into the African American Sports Hall of Fame in May 2007, with Lifetime Achievement Award Has played in a record 46 consecutive British Open Championships, winning 3 times over 3 decades. Stars with Camilo Villegas in a MasterCard "priceless foursome" television commercial launched during the U.S. Open in June 2009 In November 2009 he was awarded the inaugural Breeders Cup "Sports and Racing Excellence Award" at Santa Anita Park in California which honours owners and breeders of thoroughbred race horses. Was inducted into the Asian Pacific Golf Hall of Fame with Jack Nicklaus in 2011 at a ceremony in Pattaya, Thailand. In December 2011, Gary Player Design was selected amongst the finalists to design the golf course for the 2016 Olympic Games in Rio de Janeiro He received the PGA Tour Lifetime Achievement Award at The Players Championship in May 2012. The first international person to receive this accolade. Received the 2020 GCSAA Old Tom Morris Award from the Golf Course Superintendents Association of America Received the Presidential Medal of Freedom on 7 January 2021 from then President Donald Trump. With the death of Jack Burke Jr., Player becomes the oldest living Masters champion.
Viral induction of apoptosis occurs when one or several cells of a living organism are infected with a virus, leading to cell death. Cell death in organisms is necessary for the normal development of cells and the cell cycle maturation. It is also important in maintaining the regular functions and activities of cells. Viruses can trigger apoptosis of infected cells via a range of mechanisms including:
2 Bh + 3 O2 + 2 HCl → 2 BhO3Cl + H2 The longer-lived heavy isotopes of bohrium, produced as the daughters of heavier elements, offer advantages for future radiochemical experiments. Although the heavy isotope 274Bh requires a rare and highly radioactive berkelium target for its production, the isotopes 272Bh, 271Bh, and 270Bh can be readily produced as daughters of more easily produced moscovium and nihonium isotopes.
Sources: en.wikipedia.org
Retatrutide is an investigational synthetic peptide that activates three metabolic receptors: GLP-1, GIP, and glucagon. It is being studied for obesity and type 2 diabetes. It has not been approved for clinical use.
Earlier incretin therapies engage one or two receptors. Retatrutide adds glucagon receptor activity, which may raise energy expenditure. Whether this produces larger clinical benefits is still being tested.
It has completed phase 2 trials and moved into later-stage evaluation. No regulator has granted approval. Access outside research settings is not authorized.
指同一个分子能激活 GIP、GLP-1 和胰高血糖素三类受体。它与只激活一到两种受体的同类分子在设计思路上有所区别。这种设计的目的在于覆盖更多代谢调节通路。