PPARδ agonist raises a handful of sensible questions. This page answers them in order, starting with the fundamentals and moving to applications.
Reviewed 2025-11-25. Anything still debated is marked as such rather than presented as settled.
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, 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.
Regulatory treatment varies, but cardarine is not approved as a medicine. Sports authorities list GW501516 as a prohibited substance, and it is banned at all times under the World Anti-Doping Agency code. Many countries restrict sales for human consumption, while online vendors market it as a research chemical. Such products may lack purity data, and their actual contents can differ from the label. Purchasing or possessing cardarine may carry legal consequences depending on jurisdiction. The compound is not a dietary supplement ingredient in regulated markets.
| 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. |
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.
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 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.
==== United Kingdom ==== On October 18, 2012, the Advisory Council on the Misuse of Drugs in the United Kingdom released a report about methoxetamine, saying that the "harms of methoxetamine are commensurate with Class B of the Misuse of Drugs Act (1971)". The report went on to suggest that all analogues of MXE should also become class B drugs and suggested a catch-all clause covering both existing and unresearched arylcyclohexylamines, including 3-MeO-PCP.
== Career == Following his Doctoral degree, Greenspan joined Yale University School of Medicine as a Postdoctoral fellow in the Department of Genetics. In 1984, he was appointed as an Associate Research Scientist in the Department of Genetics and was supported by a fellowship from the Arthritis Foundation. His postdoctoral studies at Yale included analysis of RNA splicing and identification of new human HLA genes. He subsequently joined the University of Wisconsin-Madison School of Medicine in 1986 as assistant professor in the Department of Pathology and Laboratory Medicine. Greenspan was promoted to Associate Professor in 1992, and became a Professor in 1997. From 2010 – 2014 Greenspan served as founding/interim chair of the Department of Cell and Regenerative Biology at the University of Wisconsin School of Medicine and Public Health. Prior to that, he was Vice Chair for Research in the Department of Pathology and Laboratory Medicine from 2003 to 2006.
==== North American plate ==== Bermuda hotspot (56) 32°36′N 64°18′W, w= 0.3 az= 260° ±15° Yellowstone hotspot (44) 44°30′N 110°24′W, w= 0.8 az= 235° ±5° rate= 26 ±5 mm/yr Possibly related to the Columbia River Basalt Group (17–14 Ma). Raton hotspot (32) 36°48′N 104°06′W, w= 1 az= 240°±4° rate= 30 ±20 mm/yr Anahim hotspot (45) 52°54′N 123°44′W (Nazko Cone)
Sources: en.wikipedia.org
Genes are arranged linearly along long chains of DNA base-pair sequences. In bacteria, each cell usually contains a single circular genophore, while eukaryotic organisms (such as plants and animals) have their DNA arranged in multiple linear chromosomes. These DNA strands are often extremely long; the largest human chromosome, for example, is about 247 million base pairs in length. The DNA of a chromosome is associated with structural proteins that organize, compact, and control access to the DNA, forming a material called chromatin; in eukaryotes, chromatin is usually composed of nucleosomes, segments of DNA wound around cores of histone proteins. The full set of hereditary material in an organism (usually the combined DNA sequences of all chromosomes) is called the genome. DNA is most often found in the nucleus of cells, but Ruth Sager helped in the discovery of nonchromosomal genes found outside of the nucleus. In plants, these are often found in the chloroplasts and in other organisms, in the mitochondria. These nonchromosomal genes can still be passed on by either partner in sexual reproduction and they control a variety of hereditary characteristics that replicate and remain active throughout generations. While haploid organisms have only one copy of each chromosome, most animals and many plants are diploid, containing two of each chromosome and thus two copies of every gene. The two alleles for a gene are located on identical loci of the two homologous chromosomes, each allele inherited from a different parent.
=== Automatic Fraction Collector === The Automatic Fraction Collector (AFC) is a programmable, automation technology designed to enhance the reproducibility and scalability of sample collection from qEV columns. The AFC manages the collection of fractions from the qEV column by differentiating between the buffer volume, and the volume of fractions containing extracellular vesicles. It has an in-built rotational carousel for holding collection tubes, and precisely measures the volume of each fraction by weight as the sample elutes from the column. Together, qEV columns and the AFC are known as the qEV isolation platform. Multiple AFCs can be used in parallel to increase the throughput of extracellular vesicle isolation.
This species is of typical tetra shape but grows to a maximum overall length of approximately 2 cm (0.8 in) to 3 cm (1.2 in). Most exhibit striking orange and reddish coloration with mild translucency near the pelvic fin. The eye frequently mirrors the color of the fish and is outlined in black. The fish's natural diet consist of small invertebrates and plants. Although somewhat hard to find in fish stores, H. amandae is commonly kept as an aquarium fish by hobbyists.
Sources: en.wikipedia.org
These early experiments with animal blood provoked a heated controversy in Britain and France. Finally, in 1668, the Royal Society and the French government both banned the procedure. The Vatican condemned these experiments in 1670. Blood transfusions fell into obscurity for the next 150 years.
=== Exercise === Horses with PSSM show fewer clinical signs if their exercise is slowly increased over time (i.e. they are slowly conditioned). Additionally, they are much more likely to develop muscle stiffness and rhabdomyolysis if they are exercised after prolonged stall rest. Horses generally have fewer clinical signs when asked to perform short bouts of work at maximal activity level (anaerobic exercise), although they have difficulty achieving maximal speed and tire faster than unaffected horses. They have more muscle damage when asked to perform lower intensity activity over a longer period of time (aerobic activity), due to an energy deficit in the muscle.
1993/2257) Bath Mental Health Care National Health Service Trust (Transfer of Trust Property) Order 1993 (S.I. 1993/2258) Wiltshire Health Care National Health Service Trust (Transfer of Trust Property) Order 1993 (S.I. 1993/2259) North Mersey Community National Health Service Trust (Transfer of Trust Property) Order 1993 (S.I. 1993/2260) Bath and West Community National Health Service Trust (Transfer of Trust Property) Order 1993 (S.I. 1993/2261) Royal United Hospital, Bath, National Health Service Trust (Transfer of Trust Property) Order 1993 (S.I. 1993/2262) Weybourne Community National Health Service Trust (Transfer of Trust Property) Order 1993 (S.I. 1993/2263) King's Lynn and Wisbech Hospitals National Health Service Trust (Transfer of Trust Property) Order 1993 (S.I. 1993/2264) Hydrocarbon Oil (Amendment) Regulations 1993 (S.I. 1993/2267) Local Government Act 1988 (Defined Activities) (Exemption) (Horsham District Council and Worthing Borough Council) Order 1993 (S.I. 1993/2269) Finance (No. 2) Act 1992 (Commencement No. 6 and Transitional Provisions and Savings) Order 1993 (S.I. 1993/2272) Income Tax (Employments) (Amendment) Regulations 1993 (S.I. 1993/2276) Smoke Control Areas (Exempted Fireplaces) Order 1993 (S.I. 1993/2277) Sea Fish Licensing (Variation) (No. 2) Order 1993 (S.I. 1993/2291) Friendly Societies (Proxy Voting) Regulations 1993 (S.I. 1993/2294) Commissioners for Oaths (Fees) Order 1993 (S.I. 1993/2297) Commissioners for Oaths (Authorised Persons) (Fees) Order 1993 (S.I.
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.
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.