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 2026-01-10 and is reviewed periodically as new material appears.
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。
retatrutide 是一种人工合成的多肽，设计目标是同时作用于 GIP、GLP-1 与胰高血糖素三种受体。这种三重激动设计试图把多条代谢通路的调节整合进单一分子，而不是只依赖一种肠促胰素受体。分子骨架以天然肽序列为基础，经过非天然氨基酸替换和脂肪酸侧链修饰，以获得更长的作用时间。该方向属于多受体激动剂研究的一部分，与双重激动剂的工作并行推进。
The three-receptor design places retatrutide in a distinct category relative to older incretin-based therapies. Single agonists target one receptor, and dual agonists target two. Adding a third target broadens the pharmacological footprint and introduces new trade-offs among efficacy, tolerability, and glucose control. How these trade-offs resolve in large trials is a central focus of current research.
Retatrutide is an investigational peptide studied for obesity and type 2 diabetes. It is a single synthetic molecule designed to activate three metabolic receptors simultaneously. The compound belongs to the incretin mimetic family, a group of peptides that imitate gut hormones involved in appetite and glucose control. Its research code is LY3437943, and it remains under clinical study rather than cleared for routine medical use.
| Property | Value | Notes |
|---|---|---|
| 分子类别 | 合成多肽 | 含非天然氨基酸与脂肪酸侧链 |
| 分子量 | 约 4.7 kDa | 多肽量级，精确值随计法而异 |
| 外观 | 白色至类白色冻干粉 | 常见冻干形态，供复溶使用 |
| 溶解性 | 易溶于水 | 复溶后为澄清至微乳光液体 |
| 常见同义词 | LY3437943 | 开发阶段使用的代号 |
Laboratory handling follows the conventions used for other synthetic peptides. Lyophilized material is weighed and dissolved in an aqueous diluent, typically sterile water or bacteriostatic water, using gentle swirling rather than vigorous shaking, because foaming stresses the chain. Solutions are prepared under clean conditions and, where sterility matters, passed through a suitable filter. Working portions are kept small so that stock material is not repeatedly warmed and cooled, a practice that limits both aggregation and gradual loss of activity.
Stability depends strongly on physical state. Dry powder is comparatively robust when held at -20 °C or below, desiccated and shielded from light; under those conditions degradation is slow and measured over years. Once dissolved, the peptide becomes far more vulnerable: backbone hydrolysis, oxidation of susceptible residues and aggregation all proceed faster in solution, and the rates climb with temperature and with pH far from neutral. Refrigerated storage at 2–8 °C extends usable life for short periods, and repeated freeze–thaw cycles are best avoided.
Identity and purity are established by instrumental methods rather than by appearance. Reversed-phase high-performance liquid chromatography separates the peptide from related impurities and yields a purity value, usually expressed as the share of total peak area. Mass spectrometry checks that the observed mass agrees with the mass calculated from the published sequence, while peptide mapping or amino acid analysis adds structural evidence. Water content, counter-ion identity and residual solvents are sometimes reported as well. A certificate of analysis should name the method behind each figure, because results are method-dependent.
Pharmacologically the compound activates three receptors: GLP-1, GIP, and glucagon. GLP-1 and GIP signaling contribute to glucose-dependent insulin release, delayed gastric emptying, and reduced appetite, while glucagon receptor activation is associated with increased energy expenditure and hepatic fat oxidation. The single-molecule design is intended to keep these activities in one peptide rather than combining separate agents. Relative activity at each receptor differs, and the balance between them is a central question in interpretation. The glucagon component is partly offset by incretin-mediated insulin secretion, an interaction that remains incompletely characterized.
Development has progressed from single- and multiple-ascending-dose studies in healthy volunteers into larger randomized trials in adults with obesity, type 2 diabetes, and fatty liver disease. Early reports describe dose-dependent reductions in body weight and improvements in glycemic markers over treatment periods of several months. Whether the glucagon arm adds tolerability cost without added benefit is still debated. Long-term cardiovascular outcomes, effects after treatment stops, and performance in older or comorbid populations are open questions rather than settled findings. Approval status may change, so the current investigational label should be confirmed against regulatory sources.
Retatrutide is an investigational synthetic peptide developed under the code LY3437943, with a backbone derived from glucose-dependent insulinotropic polypeptide. Several non-proteinogenic residues, including alpha-aminoisobutyric acid, appear in that backbone, and a fatty diacid side chain attached through a linker extends circulation time. The molecule carries roughly thirty-nine amino acid units and a total mass near 4.7 kilodaltons. Administration is by subcutaneous injection once weekly. Published work uses both the name retatrutide and the code LY3437943.
While the largest part of uranium-236 has been produced by neutron capture in nuclear power reactors, that part is nearly all stored in nuclear reactors and waste repositories and has not been released to the environment. The most significant environmental contribution is the 238U(n,3n)236U reaction by fast neutrons in thermonuclear weapons. The nuclear testing of the 1940s, 1950s, and 1960s (atmospheric testing ended 1963) has raised the environmental abundance levels significantly above the expected natural levels.
=== "Heil Hitler" sing-along === In January 2026, a video of Peters, Nick Fuentes, Myron Gaines, Andrew Tate, Tristan Tate, Sneako, and Justin Waller singing along to Kanye West's antisemitic 2025 song "Heil Hitler" at the Miami Beach nightclub Vendôme went viral. In response to the related outcry, Peters declared it was "just a song", calling it "funny" that the group had "enough status and influence" to get the song played. The incident was condemned by Miami Beach mayor Steven Meiner. Several local club owners, including David Grutman, announced bans on the group from their venues. Peters met with Grutman and David Einhorn, owner of Papi Steak, telling them he was "not trying to do politics anymore".
=== Bacterial toxins === Bacterial ADP-ribosylating exotoxins (bAREs) covalently transfer an ADP-ribose moiety of NAD+ to target proteins of infected eukaryotes, to yield nicotinamide and a free hydrogen ion. bAREs are produced as enzyme precursors, consisting of a "A" and "B" domains: the "A" domain is responsible for ADP-ribosylation activity; and, the "B" domain for translocation of the enzyme across the membrane of the cell. These domains can exist in concert in three forms: first, as single polypeptide chains with A and B domains covalently linked; second, in multi-protein complexes with A and B domains bound by non-covalent interactions; and, third, in multi-protein complexes with A and B domains not directly interacting, prior to processing.
Its frankly grandiose style is transporting in its way, as is the story itself, even in this watered-down form." She also complimented the African scenery, noting that "Cry Freedom can also be admired for Ronnie Taylor's picturesque cinematography". The Variety Staff felt Washington did "a remarkable job of transforming himself into the articulte [sic] and mesmerizing black nationalist leader, whose refusal to keep silent led to his death in police custody and a subsequent coverup." On Kline's performance, they noticed how his "low-key screen presence serves him well in his portrayal of the strong-willed but even-tempered journalist." Film critic Gene Siskel of the Chicago Tribune gave the film a thumbs up review calling it "fresh" and a "solid adventure" while commenting "its images do remain in the mind ... I admire this film very much." He thought both Washington's and Kline's portrayals were "effective" and "quite good". Similarly, Michael Price writing in the Fort Worth Press viewed Cry Freedom as often "harrowing and naturalistic but ultimately self-important in its indictment of police-state politics."
Sources: en.wikipedia.org
== Food additive == Diglycerides, generally in a mix with monoglycerides (E471), are common food additives largely used as emulsifiers. The values given in the nutritional labels for total fat, saturated fat, and trans fat do not include those present in mono- and diglycerides. They often are included in bakery products, beverages, ice cream, peanut butter, chewing gum, shortening, whipped toppings, margarine, confections, and some snack products, such as Pringles.
=== EC 1.16.1 With NAD+ or NADP+ as acceptor === EC 1.16.1.1: mercury(II) reductase EC 1.16.1.2: diferric-transferrin reductase EC 1.16.1.3: deleted since no specific enzyme catalysing this activity has been identified EC 1.16.1.4: cob(II)alamin reductase EC 1.16.1.5: deleted since the enzyme the entry was based on was later shown to be EC 1.2.1.51, pyruvate dehydrogenase (NADP+). EC 1.16.1.6: cyanocobalamin reductase (cyanide-eliminating) EC 1.16.1.7: ferric-chelate reductase EC 1.16.1.8: [methionine synthase] reductase EC 1.16.1.9: ferric-chelate reductase (NADPH) EC 1.16.1.10: ferric-chelate reductase [NAD(P)H]
== Further reading == Valera, Maria José; Torija, Maria Jesús; Mas, Albert; Mateo, Estibaliz (2013). "Acetobacter malorum and Acetobacter cerevisiae identification and quantification by Real-Time PCR with TaqMan-MGB probes". Food Microbiology. 36 (1): 30–39. doi:10.1016/j.fm.2013.03.008. ISSN 0740-0020. PMID 23764217. Sagarzazu, Noelia Isabel, et al. "Optimization of denaturing high performance liquid chromatography technique for rapid detection and identification of acetic acid bacteria of interest in vinegar production." Acetic Acid Bacteria 2.1s (2013): e5. Ogawa S, Tachimoto H, Kaga T (January 2010). "Elevation of ceramide in Acetobacter malorum S24 by low pH stress and high temperature stress". Journal of Bioscience and Bioengineering. 109 (1): 32–6. doi:10.1016/j.jbiosc.2009.07.007. PMID 20129078.
Sources: en.wikipedia.org
Absorption of rectal estradiol occurs rapidly within 30 to 60 minutes, maximal estradiol levels occur at 3 hours post-dose, and circulating estradiol levels are reportedly maintained for 4 to 10 hours. The duration of rectal estradiol is said to necessitate repeated administration 1 to 2 times per day. Rectal administration of estriol, which has similar properties to estradiol, has also been studied. Administration of a rectal suppository containing 100 mg estriol resulted in estriol levels in pregnant women at term increasing by about 53%. Estriol levels at term are normally between 5,000 and 20,000 pg/mL, which suggests that estriol levels may have increased following the suppository by about 5,000 to 10,000 pg/mL (precise levels were not provided).
=== Competing products === Because sucralose, unlike aspartame, retains its sweetness after being heated, and has at least twice the shelf life of aspartame, it has become more commonly used as an ingredient. This, along with differences in marketing and changing consumer preferences, caused aspartame to lose market share to sucralose during the early 21st century.
Dale, and A. Heath. Although Trooper Cochrane's letter made no mention of the fact, three Native South African witnesses were also shot dead. The ambush and fatal shooting of the Reverend Carl August Daniel Heese of the Berlin Missionary Society near Bandolierkop on the afternoon of 23 August. Rev. Heese had spiritually counseled the Dutch and Afrikaner victims that morning and angrily protested to Morant at Fort Edward upon learning of their deaths. Trooper Cochrane alleged that the killer of Heese was BVC Lt. Handcock. Although Cochrane made no mention that Heese's driver, a member of the Southern Ndebele people, was also killed. The orders, given by BVC Lt. Charles H.G. Hannam, to open fire on a wagon train containing Afrikaner women and children who were coming in to surrender at Fort Edward, on 5 September. The ensuing gunfire led to the deaths of two boys, aged 5 and 13, and the wounding of a 9-year-old girl. The shooting of Roelf van Staden and his sons Roelf and Christiaan, near Fort Edward on 7 September. All were coming to surrender in the hope of gaining medical treatment for Christiaan, who was suffering from fever. Instead, they were met at the Sweetwaters Farm near Fort Edward by a party consisting of Lts. Morant and Handcock, joined by BVC Sgt. Maj. Hammet, Corp. MacMahon, and Troopers Hodds, Botha, and Thompson. Roelf van Staden and both his sons were shot, allegedly after being forced to dig their graves. The letter then accused Field Commander of the BVC, Major Robert William Lenehan, of being "privy to these misdeamenours.
BMP: The What and the Who BMPedia - the Bone Morphogenetic Protein Wiki Bone+Morphogenetic+Proteins at the U.S. National Library of Medicine Medical Subject Headings (MeSH) Chen D, Zhao M, Mundy GR (Dec 2004). "Bone morphogenetic proteins". Growth Factors (Chur, Switzerland). 22 (4): 233–241. doi:10.1080/08977190412331279890. PMID 15621726. S2CID 22932278. Cheng H, Jiang W, Phillips FM, Haydon RC, Peng Y, Zhou L, Luu HH, An N, Breyer B, Vanichakarn P, Szatkowski JP, Park JY, He TC (Aug 2003). "Osteogenic activity of the fourteen types of human bone morphogenetic proteins (BMPs)". The Journal of Bone and Joint Surgery. American Volume. 85-A (8): 1544–52. doi:10.2106/00004623-200308000-00017. PMID 12925636. link[link removed]
Sources: en.wikipedia.org
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。
天然肽类在体内容易被酶解并快速清除。脂肪酸侧链与非天然氨基酸可以延缓清除、降低酶解速率。修饰后的分子因此更适合较长间隔的给药安排。
公开资料主要来自临床阶段的报告与注册平台记录。这些材料提供的是阶段性信息，而非最终结论。完整的安全性与有效性数据仍在积累中。
It is a synthetic peptide classified as a triple receptor agonist. It engages the GLP-1, GIP, and glucagon receptors at once. It is investigated for metabolic and weight-related conditions rather than approved for general use.