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 2025-10-29. Where a claim depends on a specific study, the study is described rather than over-claimed.
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.
Handling and quality assessment of cardarine reference material follow general laboratory practices for poorly characterized compounds. It typically appears as a white to off-white powder and is sparingly soluble in water but soluble in organic solvents such as dimethyl sulfoxide and ethanol. Storage recommendations usually specify a cool, dry, dark place, with long-term storage at low temperature and desiccation. Purity may be checked by high-performance liquid chromatography with ultraviolet detection, while identity is confirmed by mass spectrometry and nuclear magnetic resonance. No pharmacopeial monograph exists, so reported purity and stability depend on the supplier’s methods.
GW501516 acts as a selective agonist at PPARδ, a nuclear receptor that regulates transcription of genes involved in lipid handling and energy metabolism. Activation of PPARδ in preclinical models increases fatty acid oxidation, mitochondrial biogenesis, and exercise endurance in rodents. These effects have made the compound a subject of metabolic research and also a target for sport anti-doping rules. In humans, however, controlled studies are limited, and whether similar endurance or metabolic changes occur at tolerated exposures remains an open question. The receptor’s broad tissue distribution also means downstream effects may vary by organ and condition.
Detection of GW501516 in biological samples generally relies on liquid chromatography coupled with tandem mass spectrometry. Urine is a common matrix in anti-doping analysis, while blood or plasma may be used in research settings. Sample preparation can involve enzymatic hydrolysis, protein precipitation, or solid-phase extraction before instrumental analysis. Because the compound undergoes metabolism, assays may target the parent molecule, one or more metabolites, or both. Detection windows are not fixed; they depend on factors such as dose, route, individual metabolism, and assay sensitivity. Reference standards are required for accurate identification and quantification.
| Property | Value | Notes |
|---|---|---|
| Molecular target | PPAR delta (NR1C2) | Ligand-activated nuclear receptor. |
| Primary tissues studied | Skeletal muscle, liver, adipose | Effects on fatty acid oxidation and energy use. |
| Typical detection matrix | Urine | Used in anti-doping analysis. |
| Common analytical method | LC-MS/MS | Detects parent compound and metabolites. |
| Sport regulatory class | Prohibited at all times | Listed as a metabolic modulator by WADA. |
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.
Legal status varies by country. In some places, cardarine is controlled under medicines or psychoactive substances laws; in others, it may be sold with minimal oversight as a research chemical. Customs agencies have intercepted shipments, and several national health agencies have issued warnings about products marketed for bodybuilding or performance enhancement. The lack of a standardized pharmaceutical supply means identity, purity, and contamination levels can differ widely between samples. These factors make cardarine a regulatory and public health concern rather than a conventional prescription drug.
Cardarine is a common name for GW501516, a synthetic compound first described in the 1990s as a selective agonist of the peroxisome proliferator-activated receptor delta. It was studied in preclinical models for metabolic and cardiovascular conditions, but it has not been approved as a medicine in the United States, Europe, or other major jurisdictions. Retail products labeled as cardarine are generally research chemicals or supplements, not pharmaceutical formulations. Because human safety and efficacy data remain limited, regulatory agencies treat it as an unapproved substance rather than a therapeutic product.
Companies specialising in the handling, ripening, preparation, packaging, conservation, distribution, importing and exporting of all types of fresh and frozen products. The purchasing centres of the large food distribution chains (supermarkets, greengrocer chains, etc.) that source their fresh produce in Mercabarna. Companies that specialise in supplying the catering industry. Logistics companies specialising in food and other support services: large cold-chain logistic operators, transport companies, quality control laboratories, packaging companies, auto repair shops, banks, restaurants, hotels, petrol stations, day-care centres, chemists, IT companies, courier services, consulting firms, hardware stores, etc.
Source: INCB Red List (14th Edition, January 2015) The list of 23 substances is identical to list of EU-controlled drug precursors, except for the different categorization and inclusion of stereoisomers in EU Category 1.
== Modern scientific uses == Though insects were widely used throughout history for medical treatment on nearly every continent, relatively little medical entomological research has been conducted since the revolutionary advent of antibiotics. Heavy reliance on antibiotics, coupled with discomfort with insects in Western culture limited the field of insect pharmacology until the rise of antibiotic resistant infections sparked pharmaceutical research to explore new resources. Arthropods represent a rich and largely unexplored source of new medicinal compounds.
==== Ethiopia ==== According to a 2013 study on agricultural value chains, approximately 90% of households in Ethiopia across all income groups purchase their beef through local butchers in traditional markets.
Subsequently, the juice production creates a significant additional financial gain without compromising the fiber production in any way. In climate zones in which hemp seeds do not ripen easily such as Northern Europe, the juice production represents and additional utilization of the hemp plant. Additionally to hemp juice, press remnants of approximately 3 tons per ha are being gained. A quarter to a third of the ingredients found in hemp juice are present in the press remnants. These constitute a valuable food part for humans as well for instance used to bake bread. They also can be dried or fermented and used as cattle feed. On top of this, cold-pressing the fibers and shives offers an additional added value of the plant. It is also possible with a suitable pressing procedure during harvest to press the juice of the entire hemp plant. The use of the fiber in industry is not necessarily compromised if the right pressing process is chosen. The resulting juice of the hemp stem represents an additional value added. It can be used for bio-gas production of energy or in fermenting lactic acid for the chemical industry. Cold-pressing the fibers and shives does not compromise their value for further industrial processing.
Sources: en.wikipedia.org
== Absorption and metabolism == NMNH has proven to be a more effective NAD+ enhancer than NMN, achieving a 5-fold increase in NAD+ levels and sustaining elevated levels for six hours while maintaining high levels for up to 24 hours. NMNH treatment leads to a similar trend in NAD+ and NADH biosynthesis as NMN treatment, implying a shared pathway. However, NMNH was shown to inhibit the endogenous synthesis of NMN by blocking the action of nicotinamide phosphoribosyl transferase (NAMPT) This inhibition suggests that NMNH may be more effective than NMN in directly stimulating NAD+ production.
transcribed spacer A spacer sequence that is transcribed and thus included in the primary ribosomal RNA transcript (as opposed to a non-transcribed spacer) but subsequently excised and discarded during the maturation of functional RNAs of the ribosome.
=== Other applications === Easton-Bell Sports, Inc. have been in partnership with Zyvex Performance Materials, using CNT technology in a number of their bicycle components – including flat and riser handlebars, cranks, forks, seatposts, stems and aero bars. Amroy Europe Oy manufactures Hybtonite carbon nano-epoxy resins where carbon nanotubes have been chemically activated to bond to epoxy, resulting in a composite material that is 20% to 30% stronger than other composite materials. It has been used for wind turbines, marine paints and a variety of sports gear such as skis, ice hockey sticks, baseball bats, hunting arrows, and surfboards. Surrey NanoSystems synthesizes carbon nanotubes to create vantablack ultra-absorptive black paint. "Gecko tape" (also called "nano tape") is often commercially sold as double-sided adhesive tape. It can be used to hang lightweight items such as pictures and decorative items on smooth walls without punching holes in the wall. The carbon nanotube arrays comprising the synthetic setae leave no residue after removal and can stay sticky in extreme temperatures. Tips for atomic force microscope probes. One proposed use of carbon nanotubes is in paper batteries, developed in 2007 by researchers at Rensselaer Polytechnic Institute. Another highly speculative proposed use in the field of space technologies is to produce high-tensile carbon cables required by a space elevator.
=== Clinical marker === Genome-wide association studies identified ADAMTS7 as a risk locus for coronary artery disease. Studies have been carried on classification of ADAMTS7 binding site, which may serve as the first step toward developing a new therapeutic target for coronary artery disease. Significant associations for coronary artery calcification with SNPs in ADAMTS7 has also been found in Hispanics. Additionally, a multi-locus genetic risk score study based on a combination of 27 loci, including the ADAMTS7 gene, identified individuals at increased risk for both incident and recurrent coronary artery disease events, as well as an enhanced clinical benefit from statin therapy. The study was based on a community cohort study (the Malmo Diet and Cancer study) and four additional randomized controlled trials of primary prevention cohorts (JUPITER and ASCOT) and secondary prevention cohorts (CARE and PROVE IT-TIMI 22).
Sources: en.wikipedia.org
=== Exercise === While many environmental factors may exacerbate Parkinson's disease, exercise is considered to be one of the main protective factors for neurodegenerative disorders, including Parkinson's disease. The use of exercise can reduce risk or delay development of PD (primary prevention). Higher levels of moderate to vigorous physical activity are associated with a lowered risk of PD. There are also indications that exercise may slow or halt PD progression (secondary prevention). For example, increased levels of physical activity have been associated with slower deterioration on measures of daily living activities. This was found regardless of people's initial physical activity levels. Finally, exercise may help to reduce some symptoms of PD (tertiary prevention). Underlying protective mechanisms are not yet understood. Types of exercise that have been studied include aerobic exercise, resistance exercise, and balance and gait exercises. Respectively, they improve aerobic capacity, muscle strength, and postural stability/balance. Aerobic exercise includes physical activity that increases the heart rate. Resistance training uses tools like weights, bands, or bodyweight to challenge muscles, increasing strength and function over time. Goal-based exercises are often developed with the guidance of a physical therapist to target specific outcomes such as balance and gait.
Valium was the most versatile of the minor tranquilizers. Later came the widespread adoption of major tranquilizers such as chlorpromazine and the drug reserpine. In 1970, sales began to decline for Valium and Librium, but sales of new and improved tranquilizers, such as Xanax, introduced in 1981 for the newly created diagnosis of panic disorder, soared. Mevacor (lovastatin) is the first and most influential statin in the American market. The 1991 launch of Pravachol (pravastatin), the second available in the United States, and the release of Zocor (simvastatin) made Mevacor no longer the only statin on the market. In 1998, Viagra was released as a treatment for erectile dysfunction.
mycoides because the latter bacterium grows much faster, which translated into quicker experiments. Venter describes it as "the first species.... to have its parents be a computer". The transformed bacterium is dubbed "Synthia" by ETC. A Venter spokesperson has declined to confirm any breakthrough at the time of this writing.
=== Frequency of use === PCP began to emerge as a recreational drug in major cities in the US in the 1960s. In 1978, People magazine and Mike Wallace of the TV news program 60 Minutes called PCP the country's "number one drug problem". Although recreational use of the drug had always been relatively low, it began declining significantly in the 1980s. In surveys, the number of high school students admitting to trying PCP at least once fell from 13% in 1979 to less than 3% in 1990.
Aerogels are a class of synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas, without significant collapse of the gel structure. The result is a solid with extremely low density and extremely low thermal conductivity. Aerogels can be made from a variety of chemical compounds. Silica aerogels feel like fragile styrofoam to the touch, while some polymer-based aerogels feel like rigid foams.
Sources: en.wikipedia.org
It binds to and activates PPAR delta, a nuclear receptor that controls expression of genes related to fatty acid oxidation. This mechanism can alter energy metabolism in animal models. It is not a direct stimulant or fat-burning enzyme.
Early-stage trials examined lipid and glucose markers, but the development program was discontinued. Published human results are limited and do not support approved use for any indication. Claims of performance or health benefits remain unproven.
Yes. Laboratories use LC-MS/MS to detect GW501516 and its metabolites in urine. Detection depends on timing and sensitivity, but the substance is banned at all times.
Cardarine targets PPARδ, a nuclear receptor involved in lipid and energy metabolism. It does not bind the androgen receptor in the way SARMs do.