Everything below concerns LC-MS/MS. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Last reviewed on 2026-02-21. Where a claim depends on a specific study, the study is described rather than over-claimed.
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.
The pharmacological interest in cardarine centers on PPARδ activation and its downstream effects on lipid handling and mitochondrial function. In animal studies, PPARδ agonists have been associated with changes in exercise endurance and fatty acid utilization, though results vary by model and protocol. Human data remain sparse, and the absence of large controlled trials limits conclusions about efficacy. Researchers often describe the compound as a tool for probing PPARδ biology rather than a proven therapeutic agent.
Safety discussions about cardarine frequently cite rodent carcinogenicity findings reported in the 2000s. In those studies, treated animals developed tumors at multiple sites, leading sponsors to discontinue clinical development. The relevance of these findings to humans has not been resolved, but they are a major reason the compound is not approved. Current literature emphasizes uncertainty about long-term effects and the risks of unregulated use. Regulators and health agencies have not established a safe human exposure level.
| Property | Value | Notes |
|---|---|---|
| Regulatory status | Prohibited in sport | Listed by WADA as a metabolic modulator. |
| Approved medical use | None in major jurisdictions | Not a registered drug. |
| Common test matrix | Urine | Most anti-doping samples use urine. |
| Typical detection method | LC-MS/MS | Detects parent compound and metabolites. |
| Reference standard storage | -20 °C, desiccated | Typical for analytical standards. |
Published studies have examined GW501516 in animal models of obesity, insulin resistance, and exercise endurance. Early human trials reportedly ended, and development was discontinued after preclinical findings raised concerns about cancer in some rodent studies. Regulatory agencies have not approved cardarine for any medical use. Its availability through non-pharmaceutical channels raises questions about identity, purity, and legal status that are separate from its laboratory pharmacology. Those questions are often addressed through analytical testing rather than assumptions about product labels.
Cardarine is a common name for GW501516, also GW-1516, a synthetic compound developed as a peroxisome proliferator-activated receptor delta (PPARδ) agonist. It belongs to a class of agents that modulate gene transcription related to lipid and energy metabolism. The compound was studied in preclinical and early clinical research for metabolic and cardiovascular conditions, but it did not progress to approved therapeutic use. Its name appears in fitness and sports contexts despite not being approved as a drug.
PPARδ is a nuclear receptor that influences transcription of genes involved in fatty acid oxidation, lipid transport, and energy homeostasis. GW501516 binds and activates this receptor with high selectivity relative to PPARα and PPARγ in laboratory assays. Activation alters expression of target genes in skeletal muscle, liver, and adipose tissue in animal models. The exact clinical consequences of these changes in humans remain incompletely characterized, and observed effects in animals do not establish therapeutic benefit or safety.
Regulatory bodies treat GW501516 as a prohibited substance in competitive sport. The World Anti-Doping Agency added it to the prohibited list, and it falls under classes covering metabolic modulators and hormone-related agents. It is not approved by drug regulators for human use, and it is not a lawful dietary supplement. Products sold under the cardarine name may contain unlisted ingredients or different compounds. Because no approved product exists, quality and identity are not guaranteed by pharmaceutical manufacturing standards.
Cardarine is a common name for the investigational chemical GW501516, also written GW-1516. It was developed as a peroxisome proliferator-activated receptor delta agonist for metabolic conditions such as dyslipidemia. Early research focused on lipid handling and energy use in skeletal muscle and other tissues. The compound was never approved as a medicine. In public discussion, it is often grouped with performance-enhancing substances, although its receptor target differs from that of anabolic steroids or selective androgen receptor modulators. Regulatory and health authorities have issued warnings about its use.
Anti-doping laboratories identify GW501516 and related metabolites using liquid chromatography coupled with tandem mass spectrometry. Urine is the most common matrix, though blood and dried blood spots may also be analyzed. The method targets the parent compound and phase I and phase II metabolites, which extend the detection window. Because the substance is prohibited at all times, athletes can be tested outside competition. Detection limits and windows depend on the assay, sample type, and individual metabolism.
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.
Both TATP and DADP are liable to loss of mass via sublimation. DADP has lower molecular weight and higher vapor pressure; this results in DADP being more prone to sublimation than TATP. This can lead to dangerous crystal growth when the vapors deposit if the crystals have been stored in a container with a threaded lid. This process of repeated sublimation and deposition also results in a change in crystal size via Ostwald ripening. Several methods can be used for trace analysis of TATP, including gas chromatography-mass spectrometry (GC-MS), high performance liquid chromatography-mass spectrometry (HPLC-MS), and HPLC with post-column derivatization. Acetone peroxide is soluble in toluene, chloroform, acetone, dichloromethane and methanol. Recrystalization of primary explosives may yield large crystals that detonate spontaneously due to internal strain.
== AFL career == Monfries was drafted by the Bombers with selection 14 in the 2004 AFL draft. He played football for Walkerville Junior Football Club before moving to Melbourne. He made his debut in Round 1, 2005 against Melbourne, which saw him become the 200th player to have played under coach Kevin Sheedy. Monfries maintained his position in the senior side until round 4, but was dropped for the Anzac Day clash in round 5, against Collingwood and did not play at senior level again until round 12. In round 13 against St Kilda, he kicked two goals and, alongside other young Bombers, played a role in a fifteen-point win. He then went on to play every game for the remainder of the season. In 2006, his second season, Monfries played 21 games, missing only one game due to a minor calf strain. In 2007, Monfries played 20 out of 22 games, omitted on form for two weeks at midseason. He was, however, named as an emergency for both matches and quickly returned to the team due to pressures caused by injuries and suspensions to other key players. In 2009, Monfries became a key player within the Essendon Football Club. He defined his role further as a key position forward and finished second in the club's goalkicking after Matthew Lloyd. On 5 October 2012, Angus told Essendon that he will be leaving and be signing a new four-year deal with Port Adelaide. On 8 October 2012, Essendon announced that Monfries would be traded to Port Adelaide for pick 48. He made his debut for Port Adelaide in round 1, 2013, against Melbourne.
==== Comando Vermelho ==== Comando Vermelho (Red Command), often abbreviated as "CV", is Brazil's oldest active criminal organization, which engages primarily in drug trafficking and arms smuggling, as well as truck hijacking, loan sharking, pimping, racketeering and bank robberies, among other criminal activities. Considered the biggest faction in Greater Rio de Janeiro, it has also spread to the rest of the state, as well as nearby Espírito Santo and into the north/northeastern regions of Brazil. The formation of the organization dates back to the late 1970s (during the military dictatorship), on the Cândido Mendes prison (located on Ilha Grande), this penitentiary complex housed both ideological enemies of the regime (such as opposition politicians, journalists, unionists and intellectuals), as well as armed guerrilla fighters (such as members of MR-8 and ALN) and high-profile criminals, which, after a series of massacres and general mistreatment by the prison guards, formed an "self-protective" alliance. Through the transfer of major gang leaders by the Brazilian government, the organization was able to gain control of other prisons and establish itself on the ground in most of the state of Rio, gaining much influence within the ever-growing favela complexes. Later, during the cocaine boom of the 1980s, the gang's focus shifted from petty crime to that of drug and arms trafficking, which proved to be less dangerous than bank robberies and also allowed for larger profits and control of many city municipalities.
== Electrospray and atmospheric pressure chemical ionization == Electrospray and atmospheric pressure chemical ionization have different rules for spectrum interpretation due to the different ionization mechanisms. Fragmentation behavior is different too.
Sources: en.wikipedia.org
NASA developed a solid lubricant coating, PS300, which is deposited by thermal spraying to protect foil air bearings. PS300 lowers friction, reduces emissions, and has been used by NASA in advanced aeropropulsion engines, refrigeration compressors, turbochargers, and hybrid electrical turbogenerators. ADMA Products has found widespread industrial applications for the material.
=== Middle East === The Israeli military maintains an intricate network of internal border controls within the Israeli-occupied West Bank as well as external border controls between the West Bank and Israel, restricting the freedom of movement of Palestinians, composed of permanent, temporary, and random manned checkpoints in the West Bank; the West Bank Barrier; and restrictions on the usage of roads by Palestinians. Spread throughout the areas of the State of Palestine under de facto Israeli control, internal border control measures are a key feature of Palestinian life and are among the most restrictive in the world. Additionally, the blockade of the Gaza Strip results in a de facto domestic customs and immigration border for Palestinians. To clear internal border controls, Palestinians are required to obtain a variety of permits from Israeli authorities, depending on the purpose and area of their travel. The legality and impact of this network of internal border controls are controversial. B'Tselem, an Israeli non-governmental organisation that monitors human rights in Palestine, argues that they breach the rights guaranteed by the International Covenant on Economic, Social and Cultural Rights—in particular, the right to a livelihood, the right to an acceptable standard of living, the right to satisfactory nutrition, clothing, and housing, and the right to attain the best standard of physical and mental health.
phenotypic switching A type of phenotypic plasticity in which a cell rapidly undergoes major changes to its morphology and/or function, usually via epigenetic modifications, allowing it to quickly switch back and forth between disparate phenotypes in response to changes in the local microenvironment.
The official language is Romanian, a Romance language (the most widely spoken of the Eastern Romance branch), which presents a consistent degree of similarity to Aromanian, Megleno-Romanian, and Istro-Romanian, but shares many features equally with the rest of the Western Romance languages, specifically Italian, French, Spanish, Portuguese, and Catalan. The Romanian alphabet contains the same 26 letters of the standard Latin alphabet, as well as five additional ones (namely ă, â, î, ț, and ș), totalling 31. Romanian is spoken as a first language by 91.55% of the entire population, while Hungarian and Vlax Romani are spoken by 6.28% and 1.20% of the population, respectively. There are also 40,861 native speakers of Ukrainian (concentrated in some compact regions near the border, where they form local majorities), 17,101 native speakers of Turkish, 15,943 native speakers of German, and 14,414 native speakers of Russian living in Romania. According to the Constitution, local councils ensure linguistic rights to all minorities. In localities with ethnic minorities of over 20%, that minority's language can be used in the public administration, justice system, and education. Foreign citizens and stateless persons who live in Romania have access to justice and education in their own language. English and French are the main foreign languages taught in schools. In 2010, the Organisation internationale de la Francophonie identified 4,756,100 French speakers in the country.
Huntington's or Huntington disease (HD), also known as Huntington's chorea, is a fatal neurodegenerative disease that is usually inherited. It typically presents as a triad of progressive psychiatric, cognitive, and motor symptoms. The earliest symptoms are often subtle problems with mood or mental/psychiatric abilities, which precede the motor symptoms for many people. The definitive physical symptoms, including a general lack of coordination and an unsteady gait, eventually follow. Over time, the basal ganglia region of the brain gradually becomes damaged. The disease is primarily characterized by a distinctive hyperkinetic movement disorder known as chorea. Chorea classically presents as uncoordinated, involuntary, "dance-like" body movements that become more apparent as the disease advances. Physical abilities gradually worsen until coordinated movement becomes difficult and the person is unable to talk. Mental abilities generally decline into dementia, depression, apathy, and impulsivity at times. The specific symptoms vary somewhat among cases. Symptoms can start at any age, but are usually first seen around the age of 40. The disease may develop earlier in each successive generation. About eight percent of cases start before the age of 20 years, and are known as juvenile HD, which typically present with the slow movement symptoms of Parkinson's disease rather than those of chorea. HD is typically inherited from an affected parent, who carries a mutation in the huntingtin gene (HTT), which encodes the huntingtin protein.
Sources: en.wikipedia.org
The most common symptom of a spinal CSF leak is a fast-onset, extremely painful orthostatic headache. This headache is usually made worse by standing and typically becomes prominent throughout the day, with the pain becoming less severe when lying down. Orthostatic headaches can become chronic and disabling to the point of incapacitation. Some people will develop headaches that begin in the afternoon. This is known as second-half-of-the-day headache. This may be an initial presentation of a spontaneous CSF leak or appear after treatment such as an epidural patch, and likely indicates a slow spinal CSF leak. While high CSF pressure can make lying down unbearable, low CSF pressure due to a leak can be relieved by lying flat on the back. About 50% of people with a spinal CSFL experience neck pain or stiffness, nausea, and vomiting. Other symptoms of a CSF leak include photophobia, dizziness and vertigo, gait disturbances, tinnitus, facial numbness or weakness, visual disturbances, brain fog or difficulties with concentration, neuralgia, fatigue, fluid dripping from the nose or ears. Aural symptoms are also present in many cases of intracranial hypotension due to CSF leak; including muffled hearing, pulsatile tinnitus, hearing loss. Less common symptoms include double vision (due to cranial nerve 6 palsy) or tremor. Movement disorders are uncommon in spontaneous CSF leaks but occasionally can be one of the major components of the clinical presentation.
== Early life == There is limited information about her personal life and motivation for science. Daly's father, Ivan C. Daly, had immigrated from the British West Indies, found work as a postal clerk and eventually married Helen Page of Washington, D.C. They lived in New York City, and Daly was born and raised in Corona, Queens. She often visited her maternal grandparents in Washington, where she read about scientists and their achievements in her grandfather's extensive library. She was especially impressed by Paul de Kruif's The Microbe Hunters, a work which influenced her decision to become a scientist. Daly's interest in science was also influenced by her father, who had attended Cornell University with the intention of becoming a chemist, but had been unable to complete his education due to a lack of funds. Daly would thus complete her father's ambition by majoring in chemistry. Years later, she started a Queens College scholarship fund in his honor to assist minority students majoring in chemistry and or physics. Daly married and took the name Marie Maynard Daly Clark. Her husband died before her and they did have 2 children. She died on October 28, 2003.
=== May–December 2006 === On 22 May 2006, the SENSEX plunged by 1,100 points during intra-day trading, leading to the suspension of trading for the first time since 17 May 2004. The volatility of the SENSEX had caused investors to lose ₹6 lakh crore (US$131 billion) within seven trading sessions. The then Finance Minister of India, P. Chidambaram, made an unscheduled press statement when trading was suspended to assure investors that nothing was wrong with the fundamentals of the economy, and advised retail investors to stay invested. When trading resumed after the reassurances of the Reserve Bank of India and the Securities and Exchange Board of India (SEBI), the SENSEX managed to move up 700 points, but still finished the session 457 points in the red. The SENSEX eventually recovered from the volatility, and on 16 October 2006, the SENSEX closed at an all-time high of 12,928.18 with an intra-day high of 12,953.76. This was a result of increased confidence in the economy and reports that India's manufacturing sector grew by 11.1% in August 2006.
=== Breastfeeding === Paracetamol is excreted in breast milk at measurable concentrations (milk/plasma ratio approximately 1), but the amount ingested by the infant is much lower than paediatric therapeutic doses and rarely associated with clinical effects. Use during breastfeeding is considered compatible at recommended doses, with extra caution for preterm infants or infants with liver disease.
=== Amino acid propensities === Large aromatic residues (tyrosine, phenylalanine, tryptophan) and β-branched amino acids (threonine, valine, isoleucine) are favored to be found in β-strands in the middle of β-sheets. Different types of residues (such as proline) are likely to be found in the edge strands in β-sheets, presumably to avoid the "edge-to-edge" association between proteins that might lead to aggregation and amyloid formation.
Sources: en.wikipedia.org
Legal status varies by country, but cardarine is not approved as a medicine in major jurisdictions. It is often sold as a research chemical, a category that may not be lawful for human use. Buyers should check local laws and product labels carefully.
Anti-doping laboratories use LC-MS/MS to detect GW501516 and its metabolites, usually in urine. The method can identify the parent compound at low concentrations. Detection windows vary with dose and individual factors.
No, cardarine has no approved medical uses in major jurisdictions. Early research explored metabolic conditions, but those programs were discontinued. It is not a registered treatment for any disease.
Cardarine is an investigational synthetic compound that acts as a PPARδ agonist. It is also known as GW501516 and has been studied mainly in preclinical research. It is not an approved medicine.