Everything below concerns reference standard. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Last reviewed on 2026-04-13. Where a claim depends on a specific study, the study is described rather than over-claimed.
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.
Acting as a triple agonist, the molecule binds the GLP-1, GIP, and glucagon receptors. GLP-1 activity slows gastric emptying and dampens appetite, while GIP signaling contributes to insulin sensitivity and fat metabolism. Glucagon receptor engagement raises energy expenditure and encourages fat breakdown, although it can also elevate blood glucose. Combining three pathways is intended to yield larger weight reduction than single or dual agonists, and researchers continue to examine how the balance among them shapes tolerability.
| 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 |
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.
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.
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.
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.
Identification and purity assessment rely on established analytical techniques. Reverse-phase high-performance liquid chromatography separates the compound from related impurities and degradation products. Mass spectrometry confirms molecular identity and detects modifications that change the expected mass. Additional methods such as amino acid analysis or capillary electrophoresis may be used for verification. Small differences in sample preparation can influence results, so procedures are usually controlled and documented in detail. Consistency between runs supports confidence in reported values.
Stability studies examine how the molecule changes under defined conditions of temperature, humidity, and light exposure over time. Results are used to set storage recommendations and shelf-life limits. In practice, lyophilized peptide material is often stored at low temperatures to slow degradation, while reconstituted solutions are handled more carefully because they are generally less stable. Reported stability data apply to specific formulations and conditions, so extrapolation to other preparations requires caution.
Retatrutide is handled in laboratories mainly as a lyophilized solid for analytical and biochemical research. The peptide is typically supplied as a white to off-white powder and is reconstituted in appropriate solvents before use. Because peptide-based molecules are sensitive to temperature, moisture, and repeated freeze-thaw cycles, proper storage conditions affect both stability and measurement accuracy. Laboratories generally follow documented handling procedures to maintain the integrity of the material across experiments.
The sphinx imagery has historically been adopted into Masonic architecture and symbolism. Among the Egyptians, sphinxes were placed at the entrance of the temples to guard their mysteries, by warning those who penetrated within that they should conceal a knowledge of them from the uninitiated. Champollion said that the sphinx became successively the symbol of each of the gods. The placement of the sphinxes expressed the idea that all the gods were hidden from the people, and that the knowledge of them, guarded in the sanctuaries, was revealed to initiates only. As a Masonic emblem, the sphinx has been adopted as a symbol of mystery, and as such often is found as a decoration sculptured in front of Masonic temples, or engraved at the head of Masonic documents.
==== Migraine ==== Migraine is a complex neurovascular pain disorder involving blood vessels, neurons, and cerebrospinal fluid within the meninges. The trigeminal nerve, located within the dura mater, carries sensory information about pain, touch, heat and cold from the face to the brain. The hypothalamus receives input from the trigeminal nerve and can modulate trigeminal nerve activity. Migraine patients appear to experience impairments in cortical habituation, a process which would normally decrease cortical responses to repetitive sensory stimuli. Initiation of a migraine attack may begin with disruption in the hypothalamus and limbic system. Gradually increasing hypothalamic activity has been observed in the period leading up to a migraine attack, followed by a disruption or collapse of hypothalamic connectivity to the limbic system during an attack. Disruption of the connection between the hypothalamus and limbic system may increase activity in the pain pathway from the trigeminal nerve to the brain, resulting in a migraine attack. The meninges, particularly the dura mater, are rich in pain-sensitive nerve endings. Sensory information travels along trigeminal nerve fibers to cell bodies located within the trigeminal ganglion (TG). Axons of the trigeminal ganglion neurons enter the brainstem and travel to the trigeminal nucleus caudalis (TNC). The activity of calcitonin gene-related peptide (CGRP) in the meninges is linked to migraine.
For example, the values for glucose, sucrose, and starch are 15.57, 16.48 and 17.48 kilojoules per gram (3.72, 3.94 and 4.18 kcal/g) respectively. The differing energy density of foods (fat, alcohols, carbohydrates and proteins) lies mainly in their varying proportions of carbon, hydrogen, and oxygen atoms. Carbohydrates that are not easily absorbed, such as fibre, or lactose in lactose-intolerant individuals, contribute less food energy. Polyols (including sugar alcohols) and organic acids contribute 10 kJ/g (2.4 kcal/g) and 13 kJ/g (3.1 kcal/g) respectively. The energy contents of a food or meal can be approximated by adding the energy contents of its components, though the entire amount of calories calculated may not be absorbed during digestion.
=== Founding === After their defeat at the convention, members of the two minority caucuses helped to found new socialist organizations. Harrington's Coalition Caucus created the Democratic Socialist Organizing Committee. The Debs Caucus, led by David McReynolds, formed the Union for Democratic Socialism. On May 30, 1973, the UDS incorporated the Socialist Party of the United States of America. Many activists from the local and state branches of the old Socialist Party of America, including the party's Wisconsin, California, Illinois, New York City, Philadelphia and Washington, D.C. organizations, participated in the reconstitution of SPUSA. After its founding, the party promoted itself as the legitimate heir of the Socialist Party of America. SPUSA elected Frank Zeidler, former Mayor of Milwaukee, as its first national chairperson. Later, SPUSA nominated Zeidler for President. Zeidler believed the party would be able to collaborate with other socialist parties nationwide to spread the message of socialism.
== Advantages == Space optimization: Vertical farming and advanced control technologies maximize the use of limited spaces. Resource management: Reduced water and fertilizer consumption through the recycling of nutrient solutions. Protection for sensitive species: Controlled conditions shield plants from climatic extremes, pests and diseases. Hydrozones lie at the intersection of urban agriculture innovations, environmental concerns, and biodiversity conservation efforts. Notable examples include specialized botanical gardens, cultivation facilities for threatened endemic species, and domestic spaces for advanced horticulture enthusiasts.
Sources: en.wikipedia.org
==== Non-African education system ==== In the white system primary school lasted for 7 years. This was followed by secondary school which was described as being "academic, slow academic, general, or technical-commercial" with the duration varying depending on the track a student chose. A system of special education schools also existed for students who had disabilities for Non-Africans.
==== MeSH D12.776.377.715.182 – beta-globulins ==== MeSH D12.776.377.715.182.100 – beta-2 microglobulin MeSH D12.776.377.715.182.160 – beta-thromboglobulin MeSH D12.776.377.715.182.200 – complement factor h MeSH D12.776.377.715.182.338 – hemopexin MeSH D12.776.377.715.182.580 – plasminogen MeSH D12.776.377.715.182.580.500 – angiostatins MeSH D12.776.377.715.182.624 – properdin MeSH D12.776.377.715.182.800 – sex hormone-binding globulin MeSH D12.776.377.715.182.839 – transferrin
== Entactogens == Entactogens are a class of psychoactive drugs that produce distinctive emotional and social effects similar to those of MDMA. Users of entactogens say the drugs often produce feelings of empathy, love, and emotional closeness to others.
===== First generation ===== The Cronin–Gerow Implant, prosthesis model 1963, was a silicone rubber envelope-sac, shaped like a teardrop, which was filled with viscous silicone-gel. To reduce the rotation of the emplaced breast implant upon the chest wall, the model 1963 prosthesis was affixed to the implant pocket with a fastener-patch, made of Dacron material (polyethylene terephthalate), which was attached to the rear of the breast implant shell.
Territories have long been shared between peoples, and individuals have often identified themselves within networks of relationships rather than as subjects of a particular state sovereign." Basing citizenship off the Dawes Rolls and other rolls is what scholar Fay A. Yarbrough calls "dramatically different from older conceptions of Cherokee identity based on clan relationships, in which individuals could be fully Cherokee without possessing any Cherokee ancestry" and that by the tribe later "developing a quantifiable definition of Cherokee identity based on ancestry", this "would dramatically affect the process of enrollment late in the nineteenth century and the modern procedure of obtaining membership in the Cherokee Nation, both of which require tracing an individuals' lineage to a 'Cherokee by blood.'" Thus, the Dawes Roll itself still upholds "by blood" language and theory. Mark Edwin Miller acknowledges in his work that many of descent people left the tribes and "assimilated into existing, non-tribal (if also nonwhite) communities," and thus, without a tribe, cannot be recognized by the BIA. Miller also states that even "so-called purely 'descendancy' tribes such as the Five Tribes with no blood quantum requirement jealously guard some proven, documentary link by blood to distant ancestors. More than any single BIA requirement, however, this criterion has proven troublesome for southeastern groups [seeking federal recognition] because of its reliance on non-Indian records and the confused (and confusing) nature of surviving documents."
Sources: en.wikipedia.org
Upon learning that the Top Hat name was already trademarked, Smith and Pappe changed its name to the Sonic brand in 1959. The new name worked with their existing slogan, "Service with the Speed of Sound". After the name change, the first Sonic sign was installed at the Stillwater Top-Hat Drive-In. This was the first of three Sonics in Stillwater. The original Sonic with the first sign was demolished and renovated in May 2015. Although Smith and Pappe were being asked to help open new franchise locations, no real royalty plan was in place. The pair decided to have their paper company charge an extra penny for each Sonic-label hamburger bag it sold. The proceeds would then be split between Smith and Pappe. The first franchise contracts under this plan were drawn up, but still no joint marketing plan, standardized menu, or detailed operating requirements were in place.
Women have served on US Navy surface ships since 1993, and as of 2011–2012, began serving on submarines for the first time. Until presently, the Navy allowed only three exceptions to women being on board military submarines: female civilian technicians for a few days at most, women midshipmen on an overnight during summer training for Navy ROTC and Naval Academy, and family members for one-day dependent cruises. In 2009, senior officials, including then-Secretary of the Navy Ray Mabus, Joint Chief of Staff Admiral Michael Mullen, and Chief of Naval Operations Admiral Gary Roughead, began the process of finding a way to implement women on submarines. The US Navy rescinded its "no women on subs" policy in 2010. Both the US and British navies operate nuclear-powered submarines that deploy for periods of six months or longer. Other navies that permit women to serve on submarines operate conventionally powered submarines, which deploy for much shorter periods—usually only for a few months. Prior to the change by the US, no nation using nuclear submarines permitted women to serve on board. In 2011, the first class of female submarine officers graduated from Naval Submarine School's Submarine Officer Basic Course (SOBC) at the Naval Submarine Base New London. Additionally, more senior ranking and experienced female supply officers from the surface warfare specialty attended SOBC as well, proceeding to fleet Ballistic Missile (SSBN) and Guided Missile (SSGN) submarines along with the new female submarine line officers beginning in late 2011.
=== Neptunium-239 === Neptunium-239 has 146 neutrons and a half-life of 2.356 days. It is produced via β− decay of the short-lived uranium-239, and undergoes another β− decay to plutonium-239. This is the primary route for making plutonium, as 239U can be made by neutron capture in uranium-238. Uranium-237 and neptunium-239 are regarded as the leading hazardous radioisotopes in the first hour-to-week period following nuclear fallout from a nuclear detonation, with 239Np dominating "the spectrum for several days".
== Other uses == VIP style, or VIP Car, a car modification trend Plymouth VIP, a luxury version of the Plymouth Fury (1966-1969) Vacuum insulated panel, a form of thermal insulation consisting of a nearly gas-tight enclosure surrounding a rigid core, from which the air has been evacuated Variable Information Printing, a form of on-demand printing VimpelCom, a stock symbol VIP Ecuador, an Ecuadorian airline VIP Industries, a luggage manufacturer based in India VIP's (restaurant), an American restaurant chain Virgil Partch, a cartoonist who signed his work Vip Virgin Islands Party, a political party in the British Virgin Islands Virology Science and Technology Institute of the Philippines, also known as the Virology Institute of the Philippines (VIP) Vision Inspired by the People, a political party in Belize Visually impaired person, a person with a decreased ability to see
== Causes == The best-known of cerebral folate deficiency is due to a genetic mutation in the FOLR1 gene. It is inherited in an autosomal recessive manner. The mutation of the FOLR1 gene causes an inability to produce the folate receptor alpha (FRA) protein. CFD can also involve the malfunction and disruption of the FRA in other ways. One way the FRA can be disrupted is by the attachment of the autoantibodies, causing dysfunction in the receptor. Also, a mitochondrial disease can impact the functioning of the folate receptor alpha. In order for the receptor to function properly, energy from the mitochondria is required. Folate must be actively transported into the brain, so ATP from the mitochondria is essential. If the individual has a mitochondrial disease, the FRA could be lacking adequate energy, resulting in the deficiency of folate in the brain. Besides a malfunctioning transport system, cerebral folate deficiency can also be caused by malfunctioning biochemical pathways, often mutations in genes that code for enzymes in the folate. This is seen in 5,10-methenyltetrahydrofolate synthetase deficiency (MTHFS deficiency), MTHFR deficiency, DHFR deficiency, and occasionally MTHFD1 defienciency. Sometimes less-related biochemical pathways can also lead to a presentation of CFD, often called a "secondary" cerebral folate deficiency. CFD can develop in AADC deficiency through the depletion of methyl donors, such as SAM and 5-MTHF, by O-methylation of the excessive amounts of L-DOPA present in patients.
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.