Everything below concerns PPARδ agonist. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Last reviewed on 2026-04-28. Where a claim depends on a specific study, the study is described rather than over-claimed.
PPARδ is a nuclear receptor that regulates gene expression related to fatty acid oxidation, glucose homeostasis, and mitochondrial function. GW501516 binds to this receptor with high affinity and activates downstream signaling in skeletal muscle and other tissues. Animal studies reported increased endurance and altered fuel preference, but human data remain limited and inconsistent. The precise relationship between receptor activation and observed physiological changes is still an area of active investigation. Researchers have also examined whether the compound affects inflammation or cell proliferation. No approved therapeutic indication exists for cardarine.
In laboratory settings, cardarine is studied as a tool compound for probing PPARδ biology. Published experiments often use cell cultures, rodent models, or isolated tissues. Some investigations focus on metabolic effects, while others assess potential risks such as carcinogenicity observed in long-term animal studies. Because human trials are sparse, most knowledge comes from preclinical work and adverse event reports. Scientific literature frequently notes the gap between animal findings and human outcomes. The compound is not a dietary supplement and is not intended for human consumption.
Cardarine is a common name for GW501516, a synthetic compound developed in the 1990s through research collaborations involving GlaxoSmithKline. It belongs to a class of molecules known as peroxisome proliferator-activated receptor delta agonists. Early studies explored its effects on lipid metabolism and energy expenditure in animal models. The compound was never approved as a human medicine, and clinical development was discontinued. In the years since, it has appeared in fitness and bodybuilding communities as a performance-enhancing substance. Regulatory agencies classify it as an unapproved drug.
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.
| Property | Value | Notes |
|---|---|---|
| CAS Registry Number | 317318-70-0 | Unique identifier for the compound. |
| Chemical class | PPARδ agonist | Synthetic ligand for peroxisome proliferator-activated receptor delta. |
| Appearance | White to off-white solid | Typical form of research-grade material. |
| Solubility | Soluble in DMSO and ethanol | Poorly soluble in water. |
| Typical storage | -20°C | Recommended for long-term storage of stock solutions. |
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.
The compound is typically described as a laboratory compound rather than a therapeutic product. Published reports have explored its role in lipid disorders, insulin sensitivity, and exercise metabolism, yet no major drug regulator has approved it for medical use. Commercial samples sold under the cardarine name may vary in purity and identity. Analytical confirmation is therefore necessary when the material is discussed in scientific or regulatory contexts. Its classification as a prohibited substance in sport further shapes how it is studied and reported.
Cardarine is a common name for GW501516, a synthetic compound studied for its effects on lipid and glucose metabolism. It functions as an agonist at peroxisome proliferator-activated receptor delta, or PPARδ, a nuclear receptor that influences gene expression. The molecule is not a steroid, nor is it a selective androgen receptor modulator. It is also known in research and sports literature as GW-501516 and endurobol. Early laboratory work examined its metabolic activity in cell cultures and animal models.
Preclinical research reported that GW501516 increased running endurance in mice and improved lipid profiles in some animal species. Early human trials explored effects on high-density lipoprotein cholesterol, triglycerides, and glucose handling, but the program was discontinued. Published human data are sparse and do not establish efficacy for any condition. Studies also examined PPAR delta in cancer biology, with conflicting findings across models. The relationship between receptor activation, tissue context, and disease risk remains an active area of investigation.
Anti-doping laboratories identify GW501516 and its metabolites using liquid chromatography-tandem mass spectrometry. Urine is the usual matrix, and detection can occur after the parent compound has cleared from blood. The exact detection window depends on dose, formulation, individual metabolism, and assay sensitivity. Because the compound is prohibited at all times, athletes are subject to testing in and out of competition. Analytical methods continue to improve as new metabolites and designer analogs are characterized.
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.
Inspection focuses on the face and particularly on the tongue, including analysis of the tongue size, shape, tension, color and coating, and the absence or presence of teeth marks around the edge. Auscultation refers to listening for particular sounds (such as wheezing). Olfaction refers to attending to body odor. Inquiry focuses on the "seven inquiries", which involve asking the person about the regularity, severity, or other characteristics of: chills, fever, perspiration, appetite, thirst, taste, defecation, urination, pain, sleep, menses, leukorrhea. Palpation which includes feeling the body for tender A-shi points, and the palpation of the wrist pulses as well as various other pulses, and palpation of the abdomen.
He was soon at war on many fronts. Fearing the aggressive Avars, the Lombards conquered much of northern Italy by 572. The Sasanian wars restarted in the same year, and would not conclude until 591; by this time, the Avars and Slavs had repeatedly invaded the Balkans, causing great instability. Maurice campaigned extensively in the region during the 590s, and although he re-established Byzantine control up to the Danube, he pushed his troops too far in 602—they mutinied, proclaimed an officer named Phocas as emperor, and executed Maurice. The Sasanians seized their moment and reopened hostilities; Phocas was unable to cope and soon faced a major rebellion led by Heraclius. Phocas lost Constantinople in 610 and was executed; this destructive civil war accelerated the empire's decline.
Thy-1 or CD90 (Cluster of Differentiation 90) is a 25–37 kDa heavily N-glycosylated, glycophosphatidylinositol (GPI) anchored conserved cell surface protein with a single V-like immunoglobulin domain, originally discovered as a thymocyte antigen. Thy-1 can be used as a marker for a variety of stem cells and for the axonal processes of mature neurons. Structural study of Thy-1 led to the foundation of the Immunoglobulin superfamily, of which it is the smallest member, and led to some of the initial biochemical description and characterization of a vertebrate GPI anchor and also the first demonstration of tissue specific differential glycosylation.
=== Pharmacodynamics === Finasteride is a 5α-reductase inhibitor. It is specifically a selective inhibitor of the type II and III isoforms of the enzyme. By inhibiting these two isozymes of 5α-reductase, finasteride reduces the formation of the potent androgen dihydrotestosterone (DHT) from its precursor testosterone in certain tissues in the body such as the prostate gland, skin, and hair follicles. As such, finasteride is a type of antiandrogen, or more specifically, an androgen synthesis inhibitor. However, some authors do not define finasteride as an "antiandrogen," a term which can refer more specifically to antagonists of the androgen receptor. Finasteride results in a decrease of circulating DHT levels by about 65–70% with an oral dosage of 5 mg/day and of DHT levels in the prostate gland by up to 80–90% with an oral dosage of 1 or 5 mg/day. In parallel, circulating levels of testosterone increase by approximately 10%, while local concentrations of testosterone in the prostate gland increase by about 7-fold and local testosterone levels in hair follicles increase by around 27–53%. An oral dosage of finasteride of only 0.2 mg/day has been found to achieve near-maximal suppression of DHT levels (68.6% for 0.2 mg/day relative to 72.2% for 5 mg/day). Finasteride does not completely suppress DHT production because it lacks significant inhibitory effects on the 5α-reductase type I isoenzyme, with more than 100-fold less inhibitory potency for type I as compared to type II (IC50Tooltip Half-maximal inhibitory concentration = 313 nM and 11 nM, respectively).
State Life Insurance Corporation of Pakistan in the state owned life insurance company. It was formed in 1972 when life insurance business in Pakistan was nationalized and 32 life insurance companies were merged and consolidated.
Sources: en.wikipedia.org
For ambient air, PCO2 is around 3.5×10−4 atm (or equivalently 35 Pa). The last equation above fixes the concentration of dissolved CO2 as a function of PCO2, independent of the concentration of dissolved CaCO3. At atmospheric partial pressure of CO2, dissolved CO2 concentration is 1.2×10−5 moles per liter. The equation before that fixes the concentration of H2CO3 as a function of CO2 concentration. For [CO2] = 1.2×10−5, it results in [H2CO3] = 2.0×10−8 moles per liter. When [H2CO3] is known, the remaining three equations together with
Emus flocked to the Chandler and Walgoolan area during a dry spell, damaging rabbit fencing and devastating crops. An attempt to drive them off was mounted, with the army called in to dispatch them with machine guns; the emus largely avoided the hunters. Emus are large, powerful birds, and their legs are among the strongest of any animal and powerful enough to tear down metal fencing. The birds are very defensive of their young, and there have been two documented cases of humans being attacked by emus.
== Interactions == Due to oxytocin's close sequence homology with vasopressin, oxytocin analogs often bind with much lower affinity to vasopressin receptors V1, in the uterine lining, and V2, in the kidneys and may consequently interact with or disrupt the vasopressin circuitry and feedback loops. Carbetocin may work synergistically with drugs such as dinoprostone and misoprostol that ripen the cervix. Concurrent use of these drugs can be risky, particularly during pregnancy and prenatal care, possibly causing premature labor or abortion.
In Mexico a vigilante group called Grupos de autodefensa comunitaria was formed to counter the illegal loggers, the La Familia Michoacana Cartel and a drug cartel/cult known as the Knights Templar Cartel; as they grew, they were being joined by former cartel members and as they got bigger they began to sell drugs in order to buy weapons. The Knights Templar Cartel was eventually defeated and dissolved by the vigilantes' actions but they ended up forming their own cartel called Los Viagras, which has links with the Jalisco New Generation Cartel. The Minuteman Project is a far-right paramilitary organization that seeks to prevent illegal immigration across the US-Mexico border; however, doing so is detrimental to gangs like Mara Salvatrucha (MS-13), who make money through people smuggling, and as a result MS-13 is known to commit acts of violence against members of the Minutemen, to prevent them from interfering with their illegal immigration activities. Throughout the world there are various anti-gang vigilante groups, who profess to be fighting against gang influence, but share characteristics and acts similarly to gangs, including Sombra Negra, Friends Stand United, People Against Gangsterism and Drugs, and OG Imba. Gangs that are involved in drug trafficking often commit violent acts to stop or force out independent dealers—drug dealers with no gang ties—to keep them from taking customers.
Sources: en.wikipedia.org
=== Pathogenic mutations === (MTRR):c.66A>G – Polymorphism resulting in isoleucine conversion to methionine at codon 22. This mutation is found within and affects the FMN binding domain. (MTRR):c.524C>T – Serine to leucine substitution at codon 175. Benign mutation associated with impaired intracellular cobalamin metabolism disorders. (MTRR):c.1049A>G – Lysine to arginine substitution at codon 350. (MTRR):c.1349C>G – Proline to arginine substitution at codon 450. Prevalence associated with abnormal intracellular cobalamin metabolism disorders. (MTRR):c.903+469T>C – Deep intronic insertion between exons 6 and 7 (r.903_904ins140). Threonine to cysteine change resulting in activation of an exon splicing enhancer in intron 6. (MTRR):c.1361C>T – Rare polymorphism involving serine to leucine substitution at codon 454. Known as the Iberian mutation, prevalent in homocystinuria megaloblastic anemia due to impaired cobalamin metabolism. Mainly three different halotypes (GTACG, GCACA, GCACG) from the deamination of methyl cytosine in different chromosomes. (MTRR):c.1459G>A – Involves glycine to arginine substitution at codon 487. Conserved in MTRR and found to occur within the FAD binding domain. Pathogenicity associated with inborn genetic diseases. (MTRR):c.1573C>T – Arginine substitution with a premature termination codon at codon 525. (MTRR):c.1622_1623dupTA – Results in formation of a premature termination codon. Pathogenicity associated with CblE type of homocystinuria. (MTRR):r.1462_1557del96 – Associated with splicing of exon 11 due to a 7 base pair deletion.
The commercial success of these documentaries may derive from this narrative shift in the documentary form, leading some critics to question whether such films can truly be called documentaries; critics sometimes refer to these works as "mondo films" or "docu-ganda." However, directorial manipulation of documentary subjects has been noted since the work of Flaherty, and may be endemic to the form due to problematic ontological foundations. Documentary filmmakers are increasingly using social impact campaigns with their films. Social impact campaigns seek to leverage media projects by converting public awareness of social issues and causes into engagement and action, largely by offering the audience a way to get involved. Examples of such documentaries include Kony 2012, Salam Neighbor, Gasland, Living on One Dollar, and Girl Rising. Although documentaries are financially more viable with the increasing popularity of the genre and the advent of the DVD, funding for documentary film production remains elusive. Within the past decade, the largest exhibition opportunities have emerged from within the broadcast market, making filmmakers beholden to the tastes and influences of the broadcasters who have become their largest funding source. Modern documentaries have some overlap with television forms, with the development of "reality television" that occasionally verges on the documentary but more often veers to the fictional or staged. The "making-of" documentary shows how a movie or a computer game was produced.
=== 2025 bankruptcy === In June 2024, Hooters of America abruptly closed approximately 40 locations that were deemed underperforming, blaming rising costs and a decline in sales as part of the decision. On February 21, 2025, it was reported that Hooters of America was preparing to file for Chapter 11 bankruptcy protection within the coming months after prior closures in 2024 and revenue losses at its locations. On March 31, 2025, Hooters of America filed for Chapter 11 bankruptcy protection in an effort to move forward with a sale to franchisees that consists of all of its company-owned restaurants. The company initially had no plans to close restaurants and would remain operational during the procedure. At the time of the bankruptcy, there were 305 Hooters restaurants globally, including 151 restaurants operated by Hooters of America. However, by June 4, 2025, over 30 locations in 12 states permanently closed. Per-store sales at Hooters of America-owned restaurants were less than half those operated by the Clearwater-based company. Overall sales at Hooters of America shrank from $1.2 billion in 2009 to $678 million in 2024. Real American Beer co-founder Hulk Hogan expressed interest in the company acquiring Hooters out of bankruptcy prior to his death in July 2025. The Clearwater-based company, along with a group of other franchisees, purchased the Atlanta-based company out of bankruptcy in October 2025.
This disease occurs when methylmalonyl-CoA mutase is unable to isomerize sufficient amounts of methylmalonyl-CoA into succinyl-CoA. This causes a buildup of propionic and/or methylmalonic acid, which has effects on infants ranging from severe brain damage to death. However, methylmalonyl-CoA also serves as the donor for lysine methylmalonylation, a pathogenic post-translational modification proposed to play a greater role in the disease than methylmalonic acid itself. The disease is linked to vitamin B12, which is a cofactor for the enzyme methylmalonyl-CoA mutase.
== Reception == Half Life received mixed-to-positive reviews; Newsweek called it "brilliant and funny," and The New York Times, while praising Jackson's ambition as "truly glorious," added that "All this razzle-dazzle, all the allusions, [and] the narrative loop-de-loops [get] a bit busy." It won the 2006 James Tiptree, Jr. Award for science fiction and fantasy.
Sources: en.wikipedia.org
Cardarine is a common name for GW501516, a synthetic PPARδ agonist developed for research. It has not been approved as a medication in any country. It is classified as an unapproved drug and a prohibited substance in sport.
No. Cardarine is not an anabolic steroid; it belongs to a different chemical class that targets PPARδ. Steroids act primarily through androgen receptors, while cardarine acts through a nuclear receptor involved in metabolism.
Some rodent studies reported increased endurance and changes in fat metabolism after cardarine exposure. Long-term studies in animals also raised concerns about cancer in certain tissues. Human trial data are limited, so these findings cannot be directly translated to people.
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.