The short version of prohibited list fits in a sentence. The long version — which is the one that helps — is below.
Reviewed 2025-12-10. Anything still debated is marked as such rather than presented as settled.
Cardarine is frequently described as a fat-burning or endurance-enhancing supplement, but these claims exceed the available evidence. The compound is not a hormone, steroid, or selective androgen receptor modulator. Research articles discuss it as a tool compound for studying PPARδ biology, while anti-doping literature focuses on its abuse and detection. Quality of unapproved products is uncertain, and independent analyses have found impurities or incorrect labeling. Open questions include whether human cancer risk resembles that seen in rodents and how often non-athletes use the substance.
Cardarine has no approved therapeutic indication and is not marketed as a medicine. The World Anti-Doping Agency lists GW501516 as a prohibited substance at all times, covering both in-competition and out-of-competition periods. National laws vary: some countries treat it as an unapproved drug subject to import controls, while others have specific restrictions on sale for human consumption. It is often sold as a research chemical, a label that does not imply safety or legality. Enforcement actions have targeted online vendors and shipments.
Because cardarine is not an approved medicine, no pharmacopeial monograph defines its identity, purity, or storage requirements. Laboratories typically rely on in-house methods and reference standards when testing materials labeled as GW501516. Certificates of analysis may report purity and identity for a specific batch, but their scope varies and they do not guarantee safety or legal status. Independent verification can include high-performance liquid chromatography, mass spectrometry, nuclear magnetic resonance, and elemental analysis. The distinction between research chemical labeling and human use is significant because quality standards and oversight differ.
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.
| Property | Value | Notes |
|---|---|---|
| Regulatory status | Prohibited in sport; not approved as medicine | Listed by WADA at all times. |
| Common synonyms | GW501516, GW-501516, endurobol | Cardarine is a colloquial name. |
| Typical analytical method | LC-MS/MS | Detects parent compound and metabolites. |
| Common test matrix | Urine | Blood and dried blood spots also possible. |
| Legal classification | Varies by country | Often treated as unapproved drug or research chemical. |
Published human data are sparse and mostly come from early-phase trials. Those studies examined short-term changes in lipids, glucose, and exercise capacity, but they were not large enough to establish efficacy or long-term safety. Some animal experiments reported increased running endurance, yet such findings do not prove a performance benefit in people. Anti-doping laboratories detect GW501516 and its metabolites in urine or blood using liquid chromatography-tandem mass spectrometry. Detection windows depend on dose, sample type, and individual metabolism. The method is sensitive enough to identify trace residues in tested samples.
Laboratory handling focuses on identity, purity, and stability. Reference standards are typically stored cold and dry, protected from light, because solutions can degrade over time. Analytical checks may use high-performance liquid chromatography with ultraviolet detection or mass spectrometry. Impurities and related substances can be separated chromatographically and compared with a known standard. Because cardarine is not an approved drug, compendial monographs are absent, and laboratories often rely on in-house methods. Reported purity varies among unregulated products and should not be assumed from a label.
GW501516 binds and activates PPARδ, a nuclear receptor that influences transcription of genes involved in fatty acid oxidation and energy use. Activation shifts some metabolic pathways in preclinical models, which is why the compound has been studied for lipid disorders and exercise-related endpoints. The exact downstream effects in humans are incompletely mapped. PPARδ is expressed in many tissues, including skeletal muscle, liver, and adipose tissue, so broad activation may have varied consequences. Researchers continue to examine how selective or partial activation might alter the balance between benefits and risks.
Cardarine is explicitly prohibited by the World Anti-Doping Agency under the class of PPARδ agonists. Its presence in urine or blood samples can be detected using mass spectrometry-based methods, often liquid chromatography-tandem mass spectrometry. Athletes who test positive may face sanctions, including bans from competition. The compound is also regulated as a prescription-only or unapproved drug in many countries. Enforcement varies by jurisdiction, and some regions treat it as a controlled substance. Online sales may occur despite these restrictions, creating quality and legal risks.
Laboratory detection of cardarine typically involves sample preparation followed by chromatographic separation and mass spectrometric identification. Urine is the most common matrix for anti-doping tests, though blood and hair have also been explored. Methods can target the parent compound or its metabolites, depending on the expected window of detection. Reference standards are required for accurate quantification. Matrix effects and dilution can influence results, so laboratories use internal standards and validation protocols. The exact detection window varies with dose, route, and individual metabolism.
Ross (1971), historian and professor at University of Southern California, 2018 Pulitzer Prize for History finalist Roy Rosenzweig (1971), historian and director of the Center for History and New Media at George Mason University Scott Atran (1972), anthropologist; director at Centre National de la Recherche Scientifique and presidential scholar at John Jay College of Criminal Justice Joel Black (1972), literature and film scholar Michael Gerrard (1972), professor at Columbia Law School Jerome Groopman (1972), Harvard Medical School professor and medical writer for The New Yorker Robert Hymes (1972), professor of Chinese history at Columbia University, winner of two Joseph Levenson Book Prizes George Klosko (1972), professor of philosophy at the University of Virginia Mark J. Roe (1972), professor at Harvard Law School John Servos (1972), professor and historian of science; president of the History of Science Society David Stern (1972), professor of Hebrew literature at Harvard University Tom R. Tyler (1972), professor of psychology at Yale Law School Harold Aram Veeser (1972), professor at City College of New York, known for contribution to new historicism Sean Wilentz (1972), historian and winner of the Bancroft Prize; chair of American Studies at Princeton University Angelo Falcón (1973), political scientist, president and founder of the National Institute for Latino Policy Steven Messner (1973), sociologist, professor of the University at Albany, SUNY, former president of the American Society of Criminology William C.
=== Controversy === Newborn screening tests have become a subject of political controversy in the last decade. Lawsuits, media attention, and advocacy groups have surfaced a number of different, and possibly countervailing, positions on the use of screening tests. Some have asked for government mandates to widen the extent of the screening to find detectable and treatable birth defects. Others have opposed mandatory screening concerned that effective follow-up and treatment may not be available, or that false positive screening tests may cause harm to infants and their families. Others have learned that government agencies were often secretly storing the results in databases for future genetic research, often without consent of the parents nor limits on how the data could be used in the future . In the UK a campaign called the Newborn Screening Collaborative, 17 small rare disease organisations including Genetic Alliance UK, have joined together to raise awareness surrounding this issue and promote the positives of early diagnosis.
== As a pollutant == Although many militaries are replacing traditional 2,4,6-trinitrotoluene (TNT)-based explosives for insensitive munitions, DNP is a degradation byproduct of the IMX-101 insensitive munition used by the United States Army. While the Meisenheimer charge transfer reaction is effective at detecting TNT, it is not effective at detecting many other explosives including DNP. Researchers are studying colorimetric detection and other methods for DNP to find if water or solids such as soils are contaminated with DNP. UiO-66-NH2 can be used to bind to and remove DNP from solution.
The UGR comes in two menu variations: breakfast and lunch/dinner. Menus are intended to be cycled through regularly. They include both standard American cuisine and diverse cuisines. The UGR-E also has a unique holiday menu variant. UGR modules come with mandatory and optional meal supplements—namely UHT milk, cereal, bread, fruits, vegetables, salads, drink mixes, and condiments—as well as eating utensils, kitchen utensils, disposable mess trays, cups, napkins, and trash bags.
==== Recent advances ==== Since the early 2000s, advances in droplet-based microfluidics have made it a powerful technique for conducting directed evolution campaigns. Early developments in bulk production of single-emulsions (SEs; e.g. "water-in-oil" droplets) and double-emulsions (DEs; e.g. "water-in-oil-in-water" droplets) were followed by innovations in on-chip formation and sorting of SEs and DEs, which allow for greater ease and throughput of directed evolution experiments on microfluidic chips. An essential component of directed evolution is the maintenance of the linkage between enzymatic genotypes and phenotypes. The ability to form DEs on-chip and subsequently sort using fluorescence-activated cell sorting (FACS) pushed the field forward. In 2013, Yan et al. showed the use of FACS to sort DEs. In 2014, Zinchenko et al. published a system to formulate monodisperse DEs and to sort and quantitatively analyze them using a commercially available flow cytometer. The authors demonstrated the power of their system by enriching an active wild-type arylsulfatase from populations of 0.1% and 0.01% active cells by 800- to 2500-fold, respectively. In 2016, Larsen et al. developed a fluorescence-based optical sorting system to monitor polymerases activity inside a microfluidic device. Using their system, Larsen and colleagues showed approximately 1200-fold enrichment of an engineered polymerase.
Sources: en.wikipedia.org
=== Safety === The filament in a tungsten light bulb is not easy to break when the bulb is cold, but filaments are more vulnerable when they are hot because the incandescent metal is less rigid. An impact on the outside of the bulb may cause the filament to break or experience a surge in electric current that causes part of it to melt or vaporize. In most modern incandescent bulbs, part of the wire inside the bulb acts like a fuse: if a broken filament produces an electrical short inside the bulb, the fusible section of wire will melt and cut the current off to prevent damage to the supply lines. A hot glass bulb may fracture on contact with cold objects. When the glass envelope breaks, the bulb implodes, exposing the filament to ambient air. The air then usually destroys the hot filament through oxidation.
For one thing, because there is an extra NADPH-catalyzed reduction, this can contribute to depletion of cellular stores of NADPH and also reduce levels of alpha-ketoglutarate available to the cell. In particular, the depletion of NADPH is problematic because NADPH is highly compartmentalized and cannot freely diffuse between the organelles in the cell. It is produced largely via the pentose phosphate pathway in the cytoplasm. The depletion of NADPH results in increased oxidative stress within the cell as it is a required cofactor in the production of GSH, and this oxidative stress can result in DNA damage. There are also changes on the genetic and epigenetic level through the function of histone lysine demethylases (KDMs) and ten-eleven translocation (TET) enzymes; ordinarily TETs hydroxylate 5-methylcytosines to prime them for demethylation. However, in the absence of alpha-ketoglutarate this cannot be done and there is hence hypermethylation of the cell's DNA, serving to promote epithelial-mesenchymal transition (EMT) and inhibit cellular differentiation. A similar phenomenon is observed for the Jumonji C family of KDMs which require a hydroxylation to perform demethylation at the epsilon-amino methyl group. Additionally, the inability of prolyl hydroxylases to catalyze reactions results in stabilization of hypoxia-inducible factor alpha, which is necessary to promote degradation of the latter (as under conditions of low oxygen there will not be adequate substrate for hydroxylation).
{\displaystyle {\begin{aligned}\sigma _{xx}&=-{\frac {2z}{\pi }}\int _{a}^{b}{\frac {p\left(x'\right)\left(x-x'\right)^{2}\,dx'}{\left[\left(x-x'\right)^{2}+z^{2}\right]^{2}}}~;~~\sigma _{zz}=-{\frac {2z^{3}}{\pi }}\int _{a}^{b}{\frac {p\left(x'\right)\,dx'}{\left[\left(x-x'\right)^{2}+z^{2}\right]^{2}}}\\[3pt]\sigma _{xz}&=-{\frac {2z^{2}}{\pi }}\int _{a}^{b}{\frac {p\left(x'\right)\left(x-x'\right)\,dx'}{\left[\left(x-x'\right)^{2}+z^{2}\right]^{2}}}\end{aligned}}}
==== Bus ==== Public transportation within Albany is provided by Albany Transit System (ATS). Connections to Corvallis are provided by bus service via the Linn-Benton Loop and the Valley Retriever Thruway inter-county bus systems. ATS, the Linn-Benton Loop, and the Valley Retriever all provide bus service to and from the Amtrak station.
Sources: en.wikipedia.org
== Procedure == An aqueous sample is treated with an equal volume of 1% strong base (sodium or potassium hydroxide) followed by a few drops of aqueous copper(II) sulfate. If the solution turns purple, it contains protein. 5–160 mg/mL can be determined. Peptides with the correct length of at least 3 amino acids are necessary for a significant, measurable colour shift with these reagents.
Hadi's election on 24 February 2012 peacefully introduced a new government in Yemen, with only a small percentage of voters spoiling their ballots in the single-candidate contest. Hadi, a southerner, especially enjoyed support in former South Yemen, quieting the murmurs of separatism, although the Southern Movement boycotted the presidential election, as did the Houthis. Hadi did not give the restive Houthis any seats in his cabinet.
== Mode of action classification == IRAC publishes an insecticide mode of action (MoA) classification that lists most common insecticides and acaricides and recommends that "successive generations of a pest should not be treated with compounds from the same MoA Group". IRAC assigns a mode of action (MoA) to an insecticide, based on sufficient scientific data. They then update the mode of action (MoA) classification. Several insecticides and classes of insecticide may act through the same mode of action.
Sources: en.wikipedia.org
Legal status varies by country. It is not approved as a medicine, and it is prohibited in sport. Some jurisdictions restrict import, sale, or possession.
Laboratories use liquid chromatography-tandem mass spectrometry to detect GW501516 and its metabolites. Urine is commonly tested, and testing can occur in and out of competition.
No, cardarine is not a SARM. It is a PPARδ agonist, which acts on a different receptor. The two classes are often confused in online discussions.
Anti-doping laboratories typically use LC-MS/MS to detect GW501516 and its metabolites in urine. The method is sensitive and can identify the compound at low concentrations. Detection depends on sample timing, metabolism, and the specific assay.