The short version of Research chemical fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2025-12-07 and is reviewed periodically as new material appears.
Published literature on cardarine includes in vitro assays, rodent experiments, and a small number of human studies. Reports describe effects on exercise capacity and lipid metabolism in animals, while human evidence is sparse. Many online descriptions present the compound as a proven endurance aid, a claim not supported by regulatory approval or large clinical trials. Analytical studies focus on identifying the parent compound and its metabolites in biological samples. Important uncertainties include species differences, dose-response relationships, and the relevance of rodent tumor findings to humans.
Cardarine is the common name for GW501516, a synthetic compound studied as a peroxisome proliferator-activated receptor delta agonist. Researchers developed it to explore treatments for lipid disorders and metabolic conditions. It is not an approved medicine in any country. Early clinical work examined changes in HDL cholesterol and triglycerides, but development was discontinued after animal studies raised concerns about cancer. The compound remains available as a research chemical and appears in discussions of performance enhancement.
At the molecular level, GW501516 binds and activates PPARδ, a nuclear receptor that regulates transcription. Activation shifts expression of genes involved in fatty acid oxidation, energy expenditure, and lipid transport in skeletal muscle and liver. Animal studies report increased endurance and altered lipid profiles after exposure. Human data are limited to small trials and do not establish long-term safety or efficacy. PPARδ also has roles in cell proliferation, so the relationship between activation and cancer risk remains an open question.
Sporting authorities added GW501516 to prohibited lists after it appeared in athlete samples and online markets. The World Anti-Doping Agency classifies it as a hormone and metabolic modulator, and its use can lead to an anti-doping rule violation. Some early laboratory work suggested effects on fatty acid oxidation and endurance-related metabolism in animals, but those findings do not establish safe or effective use in people. Reports of adverse events in humans are scarce and often anecdotal, which complicates risk assessment.
Legal status varies by country. In some places, cardarine is controlled under medicines or psychoactive substances laws; in others, it may be sold with minimal oversight as a research chemical. Customs agencies have intercepted shipments, and several national health agencies have issued warnings about products marketed for bodybuilding or performance enhancement. The lack of a standardized pharmaceutical supply means identity, purity, and contamination levels can differ widely between samples. These factors make cardarine a regulatory and public health concern rather than a conventional prescription drug.
| Property | Value | Notes |
|---|---|---|
| Common name | Cardarine | Also called GW501516 and endurobol. |
| Chemical formula | C21H18F3NO3S2 | Molecular weight about 453.5 g/mol. |
| Appearance | White to off-white solid | Form depends on synthesis and purity. |
| Solubility | Soluble in DMSO and ethanol | Low solubility in water. |
| Typical storage | -20 °C, desiccated, protected from light | Common for research chemicals. |
Cardarine can be detected in biological samples and product materials using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). The method separates compounds by chromatography and identifies them by mass-to-charge transitions, allowing low-level detection in urine or blood. Sample preparation often involves enzymatic hydrolysis, solid-phase extraction, or protein precipitation. Certified reference materials and isotope-labeled internal standards improve quantification. Detection windows depend on metabolism, matrix, and assay sensitivity, so no single universal window applies.
Regulatory treatment of cardarine differs by context and jurisdiction. In competitive sport, the World Anti-Doping Agency lists PPARδ agonists, including GW501516, as prohibited at all times. Outside sport, it lacks approval as a prescription medicine in major drug markets, and products sold for human consumption may be treated as unapproved drugs. Some countries also restrict importation or sale through general consumer protection and medicines laws. These classifications affect availability, testing, and legal risk without establishing therapeutic value.
Cardarine is prohibited in competitive sport under the World Anti-Doping Agency code, where it is classified as a metabolic modulator. It is not approved as a prescription medicine in the United States, European Union, or other major markets. Regulatory action has focused on its presence in sports and in products marketed as research chemicals. Because it has no accepted medical indication, supply is often unregulated. This status creates legal and safety uncertainties for anyone who encounters the substance.
Anti-doping laboratories detect GW501516 and its metabolites using liquid chromatography-tandem mass spectrometry. Urine is the most common matrix, though blood and dried blood spots may also be used in some programs. Detection depends on factors such as dose, timing, metabolism, and the sensitivity of the assay. Published methods describe limits of detection in the low nanogram per milliliter range for related compounds. Exact detection windows are not fixed for all situations and remain an area of ongoing study.
Products sold as cardarine have been found to contain incorrect compounds, variable amounts, or no active ingredient at all. Independent testing is required to verify identity and purity. Common analytical approaches include high-performance liquid chromatography, mass spectrometry, and nuclear magnetic resonance for structural confirmation. These methods can distinguish GW501516 from related PPAR agonists and from unrelated steroids. For regulators and researchers, such verification is central to interpreting both biological results and adverse event reports.
Low-dose bicalutamide has been found to be effective in the treatment of hirsutism in women in clinical studies. In one of the studies, the medication was well tolerated, all of the patients experienced a visible increase in hair density, and a highly significant clinical improvement was observed with the Ferriman–Gallwey score decreasing by 41.2% at 3 months and by 61.6% at 6 months (from 22.0 ± 5.1 to 8.6 ± 3.5). According to a 2013 review, "Low dose bicalutamide (25 mg/day) was shown to be effective in the treatment of hirsutism related to IH and PCOS. It does not have any significant side effects [or lead] to irregular periods." In 2017, the combination of bicalutamide with a combined birth control pill was evaluated in a phase III clinical trial for the treatment of severe hirsutism in women with PCOS, and was found to be significantly more effective than a combined birth control pill alone. In addition, bicalutamide was shown to be safe and to produce no side effects, except for a significant increase in total cholesterol and low-density lipoprotein levels. Studies have reported bicalutamide to be effective in the treatment of scalp hair loss in women. In addition to hirsutism, bicalutamide can be used in the treatment of acne in women. Flutamide has generally been found to reduce symptoms of acne by 80 or 90% even at low doses, with several studies showing complete acne clearance. In one study, it decreased acne scores by 80% within 3 months, whereas the SAA spironolactone decreased symptoms by only 40% in the same time period.
== Signs and symptoms == PAN may affect nearly every organ system and thus can present with a broad array of signs and symptoms. These manifestations result from ischemic damage to affected organs, often the skin, heart, kidneys, and nervous system. Constitutional symptoms are seen in up to 90% of affected individuals and include fever, fatigue, weakness, loss of appetite, and unintentional weight loss. Skin: The skin may show rashes, swelling, necrotic ulcers, and subcutaneous nodules (lumps). Skin manifestations of PAN include palpable purpura and livedo reticularis in some individuals. Neurologic system: Nerve involvement may cause sensory changes with numbness, pain, burning, and weakness (peripheral neuropathy). Peripheral nerves are often affected, and this most commonly presents as mononeuritis multiplex, which is the most common neurologic sign of PAN. Mononeuritis multiplex develops in more than 70% of patients with polyarteritis nodosa because of damage to arteries supplying large peripheral nerves. Most cases are marked by asymmetric polyneuropathy, but progressive disease can lead to symmetric nerve involvement. Central nervous system involvement may cause strokes or seizures. Renal system: Kidney involvement is common and often leads to death of parts of the kidney. Involvement of the renal artery, which supplies the kidneys with highly oxygenated blood, often leads to high blood pressure in about one-third of cases. deposition of protein or blood in the urine may also be seen.
Nine months earlier, he figured out that Starman's staff had imparted cosmic energy into him that was slowly healing his body. He therefore formed an alliance with the JSA's old enemy Ultra-Humanite and the surviving Dragon King to dig up his body and revive him. His plan was to transplant the Ultra-Humanite's brain into Starman's body to be his puppet that he would use to manipulate Stargirl and her JSA and become president as a mouthpiece for Icicle to enact his policies, since Starman was a beloved hero everyone admired, and the Dragon King's brain into the Ultra-Humanite's albino gorilla body for the former to "defeat" as Starman alongside Jordan's son. Christopher James Baker as Henry King Sr. / Brainwave (season 1; guest season 2):A member of the ISA with psionic abilities, the father of Henry King Jr. and a successful neurosurgeon at Blue Valley Medical Center. Baker stated that Henry King Sr. was the "mask" of Brainwave, as opposed to the other way around, believing Brainwave "is the true being". Amy Smart as Barbara Whitmore: Courtney's mother and Pat Dugan's wife who strives to balance her work and home life. After her marriage to Pat, she initially serves as a surrogate mother to her stepson Mike and also to Courtney's JSA teammates after discovering Pat and Courtney's secrets. Luke Wilson as Pat Dugan / S.T.R.I.P.E.:Courtney's stepfather, the former sidekick to Starman, and a mechanic who owns a repair garage where he stores a 15-foot robotic vehicle of his own creation made from spare car parts.
=== Insecticidal properties === Capsaicin deters insects in multiple ways. The first is by deterring insects from laying their eggs on the pepper due to the effects capsaicin has on these insects. Capsaicin can cause intestinal dysplasia upon ingestion, disrupting insect metabolism and causing damage to cell membranes within the insect. This in turn disrupts the standard feeding response of insects.
Sources: en.wikipedia.org
=== 19 August === Seven people were killed in an RSF attack on the village of al-Ghabshan al-Maramrah in North Kordofan. The SAF and the RSF traded blame for a drone strike that damaged three trucks belonging to a WFP humanitarian aid convoy in Mellit.
== History == 1977 The Association was founded. 1982 The first international conference was held in Rome. 1992 the first member's directory was produced. The first glossy member's newsletter was printed in 1993 and in 1998 it became Quasar. 1998 also saw the launch of the first BARQA website. 2001 The Association launched a new membership structure: Affiliate, Associate, Member, Fellow and Honorary Member grades. 2005 Saw the first Global QA Conference held with Society of Quality Assurance (SQA) and Japan Society of Quality Assurance (JSQA) in Orlando, Florida. 2012 India Regional Forum launched. 2013 The 1st European QA Conference with DGGF and SoFAQ was held in Bonn, Germany. 2015 US Regional Forum established. 2017 The Association celebrated its 40th birthday and 5th RQA/SQA/JSQA Global Conference held in Edinburgh.
==== Lasso peptides ==== Lasso peptide biosynthesis requires at least three genes, referred to as the A, B, and C proteins. The A gene encodes the precursor peptide, which is modified by the B and C proteins into the mature natural product. The B protein is an adenosine triphosphate-dependent cysteine protease that cleaves the leader region from the precursor peptide. The C protein displays homology to asparagine synthetase and is thought to activate the carboxylic acid side chain of a glutamate or aspartate residue via adenylylation. The N-terminal amine formed by the B protein (protease) then reacts with this activated side chain to form the macrocycle-forming isopeptide bond. The exact steps and reaction intermediates in lasso peptide biosynthesis remain unknown due to experimental difficulties associated with the proteins. Commonly, the B protein is referred to as the lasso protease, and the C protein is referred to as the lasso cyclase. Some lasso peptide biosynthetic gene clusters also require an additional protein of unknown function for biosynthesis. Additionally, lasso peptide gene clusters usually include an ABC transporter (D protein) or an isopeptidase, although these are not strictly required for lasso peptide biosynthesis and are sometimes absent. No X-ray crystal structure is yet known for any lasso peptide biosynthetic protein. The biosynthesis of lasso peptides is particularly interesting due to the inaccessibility of the threaded-lasso topology to chemical peptide synthesis.
Sources: en.wikipedia.org
== Medical uses == The vaccine can be formulated in two ways: as a ready-to-use solution in water that is frozen at the common home-freezer storage temperature of −18 °C or 0 °F or lower, and as a freeze-dried (lyophilized) powder, "Gam-COVID-Vac-Lyo", which can be stored at 2–8 °C or 36–46 °F. The freeze-dried powder must be reconstituted with sterile water before use. The lyophilized formulation of Gam-COVID-Vac is similar to the smallpox vaccine, circumventing the need for continuous "colder chain" or cold-chain storage – as required for the Pfizer–BioNTech and Moderna vaccines – and allowing transportation to remote locations with reduced risk of vaccine spoilage. The first dose (based on Ad26) is administered on the first day, and the second dose (based on Ad5) is administered on the 21st day to boost immune response. Both doses are administered into the deltoid muscle. Sputnik Light is a registered single-dose vaccine consisting of only the first dose of Sputnik V. It is intended for areas with acute outbreaks and it will be used as a third (booster) dose for those who have received Sputnik V at least 6 months earlier. It can be stored at a normal refrigerator temperature of 2–8 °C (36–46 °F). The institute says this version would be ideally suited for areas with acute outbreaks, allowing more people to be vaccinated quickly. Although Sputnik Light was not authorized by Ukraine or international organizations, tens of thousands of doses were shipped by Russia for use in non-government controlled parts of the eastern Donbas region from January 2021.
== Software and tools == Software tools for bioinformatics include simple command-line tools, more complex graphical programs, and standalone web-services. They are made by bioinformatics companies or by public institutions.
The Fatherland Front participated in the elections with a common list and separate ballots for the member parties. While the Communists obtained an absolute majority in the parliament, the People's Union Zveno had an extremely poor result of about 70,000 votes, and its leaders, including Georgiev himself, became deputies only thanks to the common list of the Fatherland Front.
Sources: en.wikipedia.org
Cardarine is a common name for the investigational compound GW501516. It acts as a PPARδ agonist and is not approved for human use. It is prohibited in sport.
It activates PPARδ, a nuclear receptor that influences gene expression related to lipid and energy metabolism. Animal studies show changes in endurance and lipid levels. Human effects and risks are not well established.
No, cardarine is not a steroid. It belongs to a different chemical class, the PPARδ agonists. It is also not a selective androgen receptor modulator.
No. Major drug regulators have not approved GW501516 for treating any medical condition. Products sold as cardarine are typically unapproved research chemicals or supplements, so their contents and safety are not assured.