WADA Prohibited List raises a handful of sensible questions. This page answers them in order, starting with the fundamentals and moving to applications.
Reviewed 2026-05-04. Anything still debated is marked as such rather than presented as settled.
Human trials of GW501516 were small and short in duration. They examined lipid levels, glucose handling, and other metabolic markers, but the programs were halted after the animal cancer findings. No approved therapeutic product exists, and published human data are insufficient for establishing long-term safety. Reports of use for athletic performance come mainly from non-clinical settings and cannot be verified through controlled trials. Independent testing of products sold as cardarine has found inconsistent purity and labeling.
Laboratory studies indicate that GW501516 activates PPARδ, a nuclear receptor involved in fatty acid oxidation and energy metabolism. In rodent experiments, treated animals often showed increased endurance and reduced fat mass. These effects were observed under controlled conditions and do not establish safe or effective use in humans. The exact dose-response relationship in humans remains poorly characterized. Species differences in metabolism can affect how results translate across animals and people.
Clinical development stopped after rodent studies showed tumors at multiple sites. Whether those findings predict human cancer risk remains an open question, but they led sponsors to discontinue programs. Human safety data are limited to small, short-term studies that were not designed to assess cancer risk. Reported effects in those studies included changes in blood lipids, but the evidence is insufficient for medical use. Long-term consequences of nonmedical use are not well characterized. Questions about dose, duration, and individual susceptibility remain unresolved.
Cardarine is a common name for GW501516, an investigational compound developed in the 1990s for metabolic conditions. It acts as an agonist at peroxisome proliferator-activated receptor delta, a nuclear receptor involved in lipid and energy metabolism. The compound is frequently mislabeled as a selective androgen receptor modulator, or SARM, but its molecular target is different. GW501516 reached early clinical testing before development was discontinued. It has no approved therapeutic use in any country. The name cardarine is not a formal international nonproprietary name.
| Property | Value | Notes |
|---|---|---|
| Primary target | PPARδ (NR1C2) | Nuclear receptor involved in lipid metabolism |
| Preclinical effect | Increased fatty acid oxidation | Observed in rodent studies |
| Key safety signal | Tumors in rodents after long-term exposure | Contributed to halted clinical development |
| Human trial status | No approved product; development stopped | Limited short-term metabolic data |
| Sport regulatory status | Prohibited at all times | WADA hormone and metabolic modulators class |
A persistent misconception is that cardarine is a fat-burning drug or a safe alternative to anabolic steroids. No approved therapeutic product exists, and human safety data are limited. The tumor findings in rodents remain a central concern in scientific reviews. Products sold online may contain inaccurate labels, impurities, or different compounds entirely, which complicates any assessment of effects. Independent testing of such products has reported frequent mislabeling. For these reasons, discussions in the literature emphasize risks and unknowns rather than benefits.
Cardarine is not approved for human therapeutic use in any major jurisdiction. It appears on the World Anti-Doping Agency Prohibited List as a PPARδ agonist within the hormone and metabolic modulators category. Sports organizations test for it because it has been detected in athlete samples and seized products. Regulatory actions against marketed research chemical versions have occurred in several countries, though enforcement varies. Availability through unregulated channels complicates oversight.
Analytical laboratories typically identify cardarine and its metabolites using liquid chromatography-tandem mass spectrometry. Urine is a common matrix in anti-doping testing, while blood and tissue may be used in research settings. Detection windows depend on the assay, the sample matrix, and the compound's metabolism. Because cardarine is extensively metabolized, laboratories often target specific metabolites to improve sensitivity and confirmation. Reference standards are required for reliable quantification. Method validation includes checks for selectivity, linearity, and carryover.
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.
Stability of GW501516 depends on form, temperature, light exposure, and moisture. Solid reference material is typically stored frozen or refrigerated in a desiccator and protected from light. Solutions in organic solvents such as dimethyl sulfoxide are often kept frozen in aliquots to reduce freeze-thaw cycling. Aqueous solubility is low, so aqueous stock solutions can be difficult to prepare without cosolvents. Degradation may appear as changes in chromatographic purity or mass spectral signal. Stability studies are needed to establish shelf life for any specific preparation.
Quality assessment for cardarine samples usually combines identity, purity, and impurity testing. Nuclear magnetic resonance spectroscopy and mass spectrometry can confirm molecular structure, while high-performance liquid chromatography estimates purity. Certificates of analysis from testing laboratories may list these results, but they do not establish safety or legality. In the absence of approved manufacturing, products sold online may contain the wrong compound, variable amounts, or unlisted contaminants. Independent verification is therefore central to analytical work and to interpreting any reported biological activity.
Laboratory detection of GW501516 commonly uses liquid chromatography coupled with tandem mass spectrometry. The method can identify the parent compound or its metabolites in urine and blood after sample cleanup. Protein precipitation, solid-phase extraction, or enzymatic hydrolysis may precede analysis, depending on the matrix. Reference standards are required for accurate quantification and confirmation. Because the compound is not approved, testing often occurs in anti-doping, forensic, or research settings rather than routine clinical care. Results are reported with limits of detection and quantification.
However, because CPE is not a rate-limiting enzyme for the production of most neuropeptides and peptide hormones, it is not clear how relatively modest decreases in CPE activity can cause physiological effects.
== Advisory roles and international engagement == Singh represented India on numerous national and international forestry bodies. He served as Chairman of the IX Commonwealth Forestry Conference in January 1968, where delegates recognized his effective moderation in revitalizing the conference's focus on global wood trends and economic forestry. His other international leadership roles included serving as Chairman of the Food and Agriculture Organization (FAO) Committee on Range Forest Management, Chairman of the Teak Sub-Commission, Chairman of the Technical Committee on Forestry and Forest Products (1965), and Vice-Chairman of the FAO Committee on Forest Development in the Tropics. He also participated in the Sixth World Forestry Congress in 1966. In 1970, following his retirement, the Government of India appointed him to the National Commission on Agriculture. Contributing heavily to the commission's 1976 report (Part IX on Forestry), Singh advocated for integrating forest management with agricultural objectives, emphasizing long-term ecological sustainability over the politically driven expansion of arable land.
Barry Halliwell, John MC Gutteridge. Free Radicals in Biology and Medicine (5th edn) (Oxford University Press, 2015) ISBN 0-19-871748-2 Barry Halliwell. Chloroplast Metabolism (2nd edn) (Oxford University Press, 1984) ISBN 0-19-854585-1 Reviews
The main food uses of casein are for powders requiring rapid dispersion into water, ranging from coffee creamers to instant cream soups. Mead Johnson introduced a product in the early 1920s named Casec to ease gastrointestinal disorders and infant digestive problems which were a common cause of death in children at that time. All caseinates have very efficient emulsifying properties and widely used to make emulsions in foods. Casein is also believed to neutralize capsaicin, the active spicy ingredient of chili peppers such as jalapeños, and habaneros. Milk is often consumed to decrease irritation caused by spicy foods.
US Patent for PCR Archived 16 October 2011 at the Wayback Machine What is PCR plateau effect? YouTube tutorial video History of the Polymerase Chain Reaction from the Smithsonian Institution Archives Veritasium (26 December 2024). The Man Who Took LSD and Changed The World. Retrieved 29 January 2025 – via YouTube.
Sources: en.wikipedia.org
Emissions monitoring was performed regularly using respiration chambers. Weekly weight checks were conducted to monitor cattle productivity. At the conclusion of the project, the cattle were terminated and had their carcasses sent to Meat Standards Australia (MSA) for meat quality assessment. The MSA found that Asparagopsis had no effect on meat eating quality. The bioactive bromoform was not detectable in tissues of treated steers, given a two-day withdrawal period. In 2019, a panel of testers were unable to discern any difference in taste between control milk and milk produced by cattle with seaweed supplements added to their diet. In 2021 sensory testing showed high meat-eating quality and celebrity chef Matt Moran cooked the world's first low-methane steaks. The first licences were also granted by FutureFeed to companies in USA and Australia to cultivate and process Asparagopsis into a livestock feed product. The first commercial sales of freeze-dried Asparagopsis were achieved in 2022 and licences were granted to a further seven companies in Australia, Sweden, USA and Canada. FutureFeed also added a patent for preparing Asparagopsis in an oil composition and won the Australian Financial Review's Sustainability Leaders Award in the Agriculture and Environment category. In 2023, Asparagopsis-oil was successfully trialled in beef feedlot and dairy systems and a large herd trial determined productivity benefits of Asparagopsis for beef cattle.
. The four approaches deliver slightly different information. Although the results of clamp-, IVGTT-, OGTT- and SPINA-derived disposition indices significantly correlate with each other the correlations are only modest. In direct comparison, the SPINA-based disposition index (SPINA-DI) had higher discriminatory power for the diagnosis of diabetes than the OGTT-based disposition index according to Matsuda and DeFronzo.
=== Zinc toxicity === Increased zinc consumption is another cause of copper deficiency. Zinc is often used for the prevention or treatment of common colds and sinusitis (inflammation of sinuses due to an infection), ulcers, sickle cell disease, celiac disease, memory impairment, and acne. Zinc is found in many common vitamin supplements and is also found in denture creams. Recently, several cases of copper deficiency myeloneuropathy were found to be caused by prolonged use of denture creams containing high quantities of zinc. Metallic zinc is the core of all United States currency coins, including copper-coated pennies. People who ingest many coins will have elevated zinc levels, leading to zinc-toxicity-induced copper deficiency and the associated neurological symptoms. This was the case for a 57-year-old woman diagnosed with schizophrenia. The woman consumed over 600 coins and started to show neurological symptoms such as unsteady gait and mild ataxia.
=== Anti-histone antibodies === Anti-histone antibodies are found in the serum of up to 75–95% of people with drug-induced lupus and 75% of idiopathic SLE. Unlike anti-dsDNA antibodies in SLE, these antibodies do not fix complement. Although they are most commonly found in drug induced lupus, they are also found in some cases of SLE, scleroderma, rheumatoid arthritis and undifferentiated connective tissue disease. Many drugs are known to cause drug induced lupus and they produce various antigenic targets within the nucleosome that are often cross reactive with several histone proteins and DNA. Procainamide causes a form of drug-induced lupus that produces antibodies to the histone H2A and H2B complex.
==== London Bullion Market Association ==== In November 2020, the London Bullion Market Association wrote a letter to a number of countries with huge gold markets, including Dubai (United Arab Emirates), China, Singapore, South Africa, Russia, Japan, United States and others, laying out the standards regarding money laundering and other issues like where they sourced their gold. It also threatened that these countries could be blacklisted, if they failed to meet the regulatory standards. This was LBMA's first move to challenge the illegal or unethical production and trading of gold.
Sources: en.wikipedia.org
By the turn of the 20th century, the science of forensics had become largely established in the sphere of criminal investigation. Scientific and surgical investigation was widely employed by the Metropolitan Police during their pursuit of the mysterious Jack the Ripper, who had killed a number of women in the 1880s. This case is a watershed in the application of forensic science. Large teams of policemen conducted house-to-house inquiries throughout Whitechapel. Forensic material was collected and examined. Suspects were identified, traced and either examined more closely or eliminated from the inquiry. Police work follows the same pattern today. Over 2000 people were interviewed, "upwards of 300" people were investigated, and 80 people were detained. The investigation was initially conducted by the Criminal Investigation Department (CID), headed by Detective Inspector Edmund Reid. Later, Detective Inspectors Frederick Abberline, Henry Moore, and Walter Andrews were sent from Central Office at Scotland Yard to assist. Initially, butchers, surgeons and physicians were suspected because of the manner of the mutilations. The alibis of local butchers and slaughterers were investigated, with the result that they were eliminated from the inquiry. Some contemporary figures thought the pattern of the murders indicated that the culprit was a butcher or cattle drover on one of the cattle boats that plied between London and mainland Europe. Whitechapel was close to the London Docks, and usually such boats docked on Thursday or Friday and departed on Saturday or Sunday.
Played in his 52nd Masters Tournament at Augusta National in April 2009, extending his record of for most Masters appearances Inducted into the African American Sports Hall of Fame in May 2007, with Lifetime Achievement Award Has played in a record 46 consecutive British Open Championships, winning 3 times over 3 decades. Stars with Camilo Villegas in a MasterCard "priceless foursome" television commercial launched during the U.S. Open in June 2009 In November 2009 he was awarded the inaugural Breeders Cup "Sports and Racing Excellence Award" at Santa Anita Park in California which honours owners and breeders of thoroughbred race horses. Was inducted into the Asian Pacific Golf Hall of Fame with Jack Nicklaus in 2011 at a ceremony in Pattaya, Thailand. In December 2011, Gary Player Design was selected amongst the finalists to design the golf course for the 2016 Olympic Games in Rio de Janeiro He received the PGA Tour Lifetime Achievement Award at The Players Championship in May 2012. The first international person to receive this accolade. Received the 2020 GCSAA Old Tom Morris Award from the Golf Course Superintendents Association of America Received the Presidential Medal of Freedom on 7 January 2021 from then President Donald Trump. With the death of Jack Burke Jr., Player becomes the oldest living Masters champion.
ACS first established technical divisions in 1908 to foster the exchange of information among scientists who work in particular fields of chemistry or professional interests. Divisional activities include organizing technical sessions at ACS meetings, publishing books and resources, administering awards and lectureships, and conducting other events. The original five divisions were 1) organic chemistry, 2) industrial chemists and chemical engineers, 3) agricultural and food chemistry, 4) fertilizer chemistry, and 5) physical and inorganic chemistry. As of 2016, there are 32 technical divisions of ACS.
To completely block the uptake of iodine-131 by the purposeful addition of perchlorate ions to a populace's water supply, aiming at dosages of 0.5 mg/kg-day, or a water concentration of 17 ppm, would therefore be grossly inadequate at truly reducing radioiodine uptake. Perchlorate ion concentrations in a region's water supply would need to be much higher, at least 7.15 mg/kg of body weight per day, or a water concentration of 250 ppm, assuming people drink 2 liters of water per day, to be truly beneficial to the population at preventing bioaccumulation when exposed to a radioiodine environment, independent of the availability of iodate or iodide drugs. The continual distribution of perchlorate tablets or the addition of perchlorate to the water supply would need to continue for no less than 80–90 days, beginning immediately after the initial release of radioiodine was detected. After 80–90 days passed, released radioactive iodine-131 would have decayed to less than 0.1% of its initial quantity, at which time the danger from biouptake of iodine-131 is essentially over. In the event of a radioiodine release, the ingestion of prophylaxis potassium iodide, if available, or even iodate, would rightly take precedence over perchlorate administration, and would be the first line of defense in protecting the population from a radioiodine release.
Research shows that co-administration with carbidopa greatly increases plasma 5-HTP levels. Other studies have indicated the risk of a scleroderma-like condition resulting from the combination of 5-HTP and carbidopa. After oral administration, 5-HTP is absorbed by the upper intestine. The mode of absorption is not known, but presumably involves active transport via amino acid transporters. 5-HTP is adequately absorbed via oral cavity. With a decarboxylase inhibitor, the bioavailability of 5-HTP can be higher than 50%. 5-HTP is rapidly absorbed with a tmax of ≈1.5 h, and rapidly eliminated with a half-life of ≈1.5 – 2 h. Co-administration of a decarboxylase inhibitor (e.g., carbidopa, benserazide) doubles the half-life of 5-HTP to ≈ 3 – 4 h, and enhances exposure several-fold, depending on the dosing regimen. 5-HTP's short half-life (<2 hours) may inherently limit its therapeutic potential, as systemic 5-HTP exposure levels will fluctuate substantially even with relatively frequent dosing. Such exposure fluctuations are usually associated with increased adverse event burdens resulting from Cmax (time to maximal systemic concentration) drug spikes, and decreased clinical efficacy resulting from sub-therapeutic exposure for large parts of the day, when taken as a single dose unit or at intervals significantly larger than Cmax. It has been proposed that 5-HTP dosage forms achieving prolonged delivery would be more effective, as has been demonstrated many times with other pharmaceuticals with short durations of action.
Sources: en.wikipedia.org
Rodent studies reported increased endurance and fat oxidation after GW501516 exposure. Long-term studies also found higher rates of some tumors, which led to halted development.
Small short-term human trials examined metabolic markers such as lipids and glucose. The trials did not continue after rodent cancer findings, so long-term human safety is unknown.
Controlled human trials have not established a performance benefit. Anecdotal reports exist, but they are not reliable evidence.
No. Cardarine is GW501516, a PPARδ agonist, while SARMs act on androgen receptors. The two classes are often grouped in informal discussions despite different mechanisms.