Everything below concerns phase 2 trial. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Last reviewed on 2026-08-01. Where a claim depends on a specific study, the study is described rather than over-claimed.
Receptor activation produces downstream effects that differ by tissue. GLP-1 receptor signaling influences appetite regulation and insulin secretion in a glucose-dependent manner. GIP receptor activity contributes to metabolic handling of nutrients and may modulate adipose tissue. Glucagon receptor engagement raises energy expenditure and promotes hepatic lipid turnover, though the balance among these actions in humans is still being characterized. Preclinical models showed reductions in body weight and improved glycemic markers.
Clinical development has progressed through phase 2 trials in adults with obesity and type 2 diabetes, with phase 3 programs reported as ongoing. Reported outcomes include reductions in body weight and improvements in glycemic measures over defined treatment periods. Whether these effects translate into durable benefits after treatment ends remains an open question. Long-term safety data across broad populations are not yet complete, and regulatory decisions have not been announced.
Retatrutide is an investigational synthetic peptide engineered to activate three distinct hormone receptors within a single molecule. It targets the glucose-dependent insulinotropic polypeptide receptor, the glucagon-like peptide-1 receptor, and the glucagon receptor simultaneously. This triagonist design distinguishes it from earlier incretin-based compounds that act on one or two of these pathways. Structural modifications relative to native gut hormones extend its residence time in circulation. The molecule remains under clinical evaluation and is not approved for any indication.
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。
三种受体在能量平衡中的分工并不相同：GLP-1 与 GIP 受体主要参与胰岛素分泌和食欲调节，胰高血糖素受体则与能量消耗及肝糖输出相关。同时激活三者可能产生叠加效应，也可能出现相互制约，具体结果取决于受体亲和力与组织分布。这种组合在理论上可能同时影响体重与血糖指标，但协同关系的细节仍处在研究阶段。
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。
| Property | Value | Notes |
|---|---|---|
| Receptor targets | GIP, GLP-1, glucagon | One molecule activates all three pathways |
| Research identifier | LY3437943 | Code used in published trial reports |
| Development stage | Phase 3, reported as ongoing | Not approved by any regulatory agency |
| Route studied | Subcutaneous | Administration form used in clinical trials |
| Studied populations | Adults with obesity or type 2 diabetes | Enrollment criteria vary between trials |
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.
Dissolution behavior depends on the amino acid sequence, the counterion content, and the buffer chosen. Many peptides disperse readily in water or mild aqueous buffers, while others require a small amount of organic co-solvent or a change in pH. Adsorption to plastic and glass surfaces can reduce the concentration of a solution over time, particularly at low concentrations. Filtration before analysis removes particulates, and aliquoting limits repeated freeze-thaw cycles that stress the material.
Research-grade peptide material is commonly supplied as a lyophilized powder, a form that limits degradation during transport and storage. Standard practice keeps such material cold and protected from light and moisture, with tighter conditions used for long-term archives. Once dissolved, solutions are generally considered less stable than the dry powder and are handled on shorter timescales. These established conventions derive largely from general peptide chemistry rather than from compound-specific evidence alone.
Human evidence remains limited to controlled studies. A phase 2 trial in adults with obesity reported large, dose-dependent reductions in body weight over 48 weeks, with gastrointestinal events as the most frequently recorded adverse effect. Phase 3 programs designated TRIUMPH, for obesity, and TRANSCEND, for type 2 diabetes, are intended to confirm efficacy and to characterize safety in larger populations. Related studies are examining conditions such as knee osteoarthritis in people with obesity and metabolic liver disease. Open questions include long-term tolerability, effects on lean mass, and what happens after treatment is stopped.
Retatrutide is an investigational synthetic peptide that acts on three receptor targets at once: glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1, and glucagon. It is developed by Eli Lilly and appears in the literature and in trial registries under the code LY3437943. The molecule belongs to a class of engineered peptides designed to resist rapid breakdown and permit infrequent subcutaneous administration. No regulatory agency has approved it for clinical use, and all available human data come from controlled trials rather than from routine practice.
== Personal life == Best later claimed that the greatest moment of his life occurred when he met his future wife, Margaret Mahon (1900–1988) following his return. Best married Margaret Hooper Mahon in Toronto in 1924 and they had two sons. Best's eldest son was Charles Alexander Best, a Canadian politician and geneticist. Best is the grandfather of Susan MacTavish Best. His other son, Henry Best was a well-regarded historian who later became president of Laurentian University in Sudbury, Ontario. Best died on March 31, 1978, in Toronto. He is interred in Mount Pleasant Cemetery, Toronto, not far from Sir Frederick Banting.
Typically, people have fewer than 36 repeats in the polyQ region, which results in the normal production and cytoplasmic localization of the huntingtin. However, 36 or more repeats result in the production of a mutant huntingtin (mHTT), which causes degeneration of medium spiny neurons. Regions of the brain have differing amounts and reliance on these types of neurons and are affected accordingly. Generally, the number of CAG repeats is related to how much this process is affected, and accounts for about 60% of the variation of the age of the onset of symptoms. The remaining variation is attributed to the environment and other genes that modify the mechanism of HD. About 36 to 39 repeats result in a reduced-penetrance form of the disease, with a much later onset and slower progression of symptoms. In some cases, the onset may be so late that symptoms are never noticed. With very large repeat counts (more than 60), HD onset can occur below the age of 20, known as juvenile HD. Juvenile HD is typically of the Westphal variant that is characterized by slowness of movement, rigidity, and tremors. This accounts for about 7% of HD carriers.
== Nanomaterial Interfaces == Applications of nanotechnology often depend on the lateral assembly and spatial arrangement of nanoparticles at interfaces. Chemical reactions can be induced at solid/liquid interfaces by manipulating the location and orientation of functional groups of nanoparticles. This can be achieved through external stimuli or direct manipulation. Changing the parameters of the external stimuli, such as light and electric fields, has a direct effect on assembled nanostructures. Likewise, direct manipulation takes advantage of photolithography techniques, along with scanning probe microscopy (SPM), and scanning tunneling microscopy (STM), just to name a few.
== External links == R&D - Protagenic Therapeutics Breakthrough Therapeutics for Stress-Related Neuropsychiatric Disorders (Corporate Overview, August 2021) - Protagenic Therapeutics US SEC FORM 10-K - Protagenic Therapeutics, Inc. (discusses PT00114)
isomeric genes Two or more genes that are equivalent and redundant in the sense that, despite coding for distinct gene products, they each result in the same phenotype when set within the same genetic background. If several isomeric genes are present in a single genotype they may be either cumulative or non-cumulative in their contributions to the phenotype.
Sources: en.wikipedia.org
troops fighting in Vietnam "remains one of our few bargaining weapons". In the same memo, Kissinger stated he was "deeply disturbed" that Nixon had started pulling out U.S. troops, saying that withdrawing the troops was like "salted peanuts" to the American people ("The more U.S troops come home, the more will be demanded"), giving the advantage to the enemy who merely had to "wait us out". Instead, he recommenced that the United States resume bombing North Vietnam and mine the coast. Later in September 1969, Kissinger proposed a plan for what he called a "savage, punishing" blow against North Vietnam code-named Duck Hook to Nixon, arguing that this was the best way to force North Vietnam to agree to peace on American terms. Laird was strongly opposed to Duck Hook, warning Nixon that the use of nuclear weapons to kill a massive number of North Vietnamese civilians would alienate American public opinion from the administration and persuaded Nixon to reject it. Reflecting his background as a Harvard professor of political science who belonged to the Primat der Aussenpolitik school, which saw foreign policy as belonging only to a small elite, Kissinger was less sensitive to public opinion than Laird, a former Republican congressman who constantly advised Nixon to keep American public opinion in mind. Laird used the National Moratorium protests of 15 November 1969 to persuade Nixon to cancel Duck Hook, arguing that if the war as it was had caused the largest demonstrations ever in American history, then Kissinger's plans for Duck Hook would alienate the public even more.
== Testing procedure == A niacin test strip is similar in appearance to a pH test strip. It is small, thin, rectangular, and white in color. Water is placed onto the culture plate and touched with a test strip for 15–20 minutes inside a small, sterile tube. If excess amounts of niacin are detected, the liquid inside the tube will turn yellow, a positive test. If the liquid in the tube is clear, there are no excess amounts of niacin and the test is negative. A positive niacin test does not necessarily indicate the presence of M. tuberculosis because other Mycobacterium species can test positive for excess niacin. Along with each batch of specimens being tested, a positive control of M. tuberculosis and a negative control with no organism will be included. If the positive control tests negative, there was probably an error with the batch, and likewise for a negative test showing positive. Because lab samples that are determined to be acid-fast bacilli are possibly M. tuberculosis, a biosafety level 3 organism, all niacin tests must be conducted in a biosafety cabinet with a full gown, respirator, gloves, and sealed laboratory to ensure the safety of the laboratory technician performing the test. All tests must also be conducted with sterile technique.
They perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esters of phosphoric acid form the backbone of DNA molecules. Esters of nitric acid, such as nitroglycerin, are known for their explosive properties. There are compounds in which an acidic hydrogen of acids mentioned in this article are not replaced by an organyl, but by some other group. According to some authors, those compounds are esters as well, especially when the first carbon atom of the organyl group replacing acidic hydrogen, is replaced by another atom from the group 14 elements (Si, Ge, Sn, Pb); for example, according to them, trimethylsilyl acetate CH3COOSi(CH3)3 is a trimethylsilyl ester of acetic acid, and dibutyltin dilaurate (CH3(CH2)10COO)2Sn((CH2)3CH3)2 is a dibutylstannylene ester of lauric acid, and the Phillips catalyst CrO2(OSi(OCH3)3)2 is a trimethoxysilyl ester of chromic acid (H2CrO4).
== Function == Although the majority of VWA-containing proteins are extracellular, the most ancient ones present in all eukaryotes are all intracellular proteins involved in functions such as transcription, DNA repair, ribosomal and membrane transport and the proteasome. A common feature appears to be involvement in multiprotein complexes. Proteins that incorporate vWF domains participate in numerous biological events (e.g. cell adhesion, migration, homing, pattern formation, and signal transduction), involving interaction with a large array of ligands.
Sources: en.wikipedia.org
Hosokawa Micron Powder Systems is an American company located in Summit, New Jersey, which designs and manufactures equipment for size reduction, classification and mixing of chemical, pharmaceutical and food materials. The company was started in 1923 by Louis Ruprecht named Pulverizing Company and was later bought by the Hosokawa Micron Group in 1985.
== Capital crimes == In addition to the Penal Code, there are four Acts of Parliament that prescribe death as punishment for offences. According to the Think Centre, a Singaporean civil rights group, 70% of hangings are for drug-related offences. All eight hangings in 2017 were for drug-related offences that year, and 11 of 13 hangings in 2018 were also for drug-related offences.
== Non-mammals == Instead of platelets, non-mammalian vertebrates have nucleated thrombocytes, which resemble B lymphocytes in morphology. They aggregate in response to thrombin, but not to ADP, serotonin, nor adrenaline, as platelets do.
=== Choosing an adhesive === Adhesives are selected based on archival properties and compatibility with textiles and treatment goals. The following criteria are evaluated: age-test performance, flexibility, bond strength, heat sealing temperature, pH, solubility, color stability, volatile emissions, and glass transition temperature (Tg). Display and storage orientation and conditions are also factored in because adhesives with high glass transition temperatures can tend to creep when applied to hanging textiles. Adhesives fall into four categories:
Live Science reported that lead author of the study Matteo Borrini from Liverpool John Moores University stated: "these cannot be real bloodstains from a person who was crucified and then put into a grave, but actually handmade by the artist that created the shroud." In 2025 a study was published in the journal Archaeometry, by Brazilian digital graphics expert and 3D designer Cicero Moraes. Moraes used software to model how clothing would move on a three-dimensional human body compared to a low-relief sculpture. In Moraes’s experiments, the image produced when a cloth is draped over a 3D human model appears misshapen and distorted. This is called the Agamemnon Mask effect, named after the Mycenaean gold funerary mask. Moraes also found that the imprint made from a low-relief sculpture closely matched the image on the Turin shroud. This supports his conclusion that the image on the shroud was an artistic creation, which Moraes interpreted as being a funerary object and a "masterwork of Christian art."
Sources: en.wikipedia.org
It is a synthetic peptide triagonist that engages GIP, GLP-1, and glucagon receptors. Investigational compounds in this class are studied for metabolic conditions rather than for a single organ system.
No regulatory agency has approved it for any indication. It remains an investigational product studied within controlled clinical trial programs.
A dual agonist engages two receptor targets, typically GIP and GLP-1. A triagonist adds glucagon receptor activity, which is intended to influence energy expenditure alongside appetite and glucose handling.
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。