This is a working overview of carcinogenicity, written for readers who want more than a one-paragraph summary but less than a textbook.
This page was last updated on 2026-08-01 and is reviewed periodically as new material appears.
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.
Safety concerns emerged from long-term animal studies. In rodents given the compound for extended periods, researchers found an increased incidence of certain cancers, including liver and bladder tumors. These findings contributed to the discontinuation of clinical development. Whether similar risks apply to short-term or low-level exposure in humans is not established, and controlled human safety data are limited. The relevance of high-dose rodent carcinogenicity findings to human use remains a subject of debate.
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.
| Property | Value | Notes |
|---|---|---|
| Chemical class | PPARδ agonist | Not an anabolic steroid. |
| Common synonyms | GW501516, GW-1516 | Cardarine is an informal name. |
| Appearance | White to off-white powder | Typical for research-grade solid. |
| Solubility class | Poorly soluble in water; soluble in some organic solvents | Such as DMSO or ethanol in laboratory settings. |
| Typical storage temperature | Cool, dry, protected from light | Specific conditions vary by supplier and form. |
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.
GW501516 acts as a ligand for PPAR delta, a nuclear receptor that regulates transcription of genes involved in fatty acid oxidation and energy use. Activation of this receptor in skeletal muscle shifts metabolism toward fat burning in animal models. The compound does not burn fat directly; it changes gene expression over hours to days. Researchers study it to understand metabolic flexibility and exercise adaptation. Effects observed in rodents are not automatically expected in humans.
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.
A common misconception is that cardarine has been proven safe for human use. In reality, human clinical data are limited, and long-term animal studies have raised concerns about cancer. Another misconception is that it is a supplement or vitamin-like compound. It is a synthetic research chemical with no approved medical indication. Scientific discussion often focuses on its mechanism and detection rather than therapeutic use. Regulatory and anti-doping literature treats it primarily as a prohibited substance.
Cardarine is explicitly prohibited by the World Anti-Doping Agency under the class of PPARδ agonists. Its presence in urine or blood samples can be detected using mass spectrometry-based methods, often liquid chromatography-tandem mass spectrometry. Athletes who test positive may face sanctions, including bans from competition. The compound is also regulated as a prescription-only or unapproved drug in many countries. Enforcement varies by jurisdiction, and some regions treat it as a controlled substance. Online sales may occur despite these restrictions, creating quality and legal risks.
Despite finally installing air conditioning, Syracuse announced an end to the perpetual naming rights deal of the dome with Carrier Corp. and that nearby wireless company JMA Wireless would hold naming rights to the stadium moving forward. In March 2020, Carrier quietly hinted at the relocation of its headquarters to Palm Beach Gardens, Florida, after posting 2019 revenues of nearly $19 billion.
Flower preservation has existed since early history, although deliberate flower preservation is a more recent phenomenon. In the Middle East, the bones of pre-historic man were discovered with delicate wild flowers probably as a tribute to a passing loved one. Evidence of deliberate use of specific flowers is indicated by the pollen grains that were present. Brightly colored and vivid flowers were also found in Egyptian tombs. These flowers were approximated to be 4,000 years old. In the sixteenth century medicinal nosegays began to give way to ornamental ones. Flowers essentially started to be used for decorative purposes such as jewels, fans and gloves. During the Elizabethan Age the once familiar ruff was replaced by soft lacy collars, and bosom flowers also became popular.
Recent genomic and phylogenomic approaches have significantly clarified plastid genome evolution, the horizontal movement of endosymbiont genes to the "host" nuclear genome, and plastid spread throughout the eukaryotic tree of life. It is accepted that both euglenophytes and chlorarachniophytes obtained their chloroplasts from chlorophytes that became endosymbionts. In particular, euglenophyte chloroplasts share the most resemblance with the genus Pyramimonas. However, there is still no clear order in which the secondary and tertiary endosymbioses occurred for the "chromist" lineages (ochrophytes, cryptophytes, haptophytes and myzozoans). Two main models have been proposed to explain the order, both of which agree that cryptophytes obtained their chloroplasts from red algae. One model, hypothesized in 2014 by John W. Stiller and coauthors, suggests that a cryptophyte became the plastid of ochrophytes, which in turn became the plastid of myzozoans and haptophytes. The other model, suggested by Andrzej Bodył and coauthors in 2009, describes that a cryptophyte became the plastid of both haptophytes and ochrophytes, and it is a haptophyte that became the plastid of myzozoans instead. In 2024, a third model by Filip Pietluch and coauthors proposed that there were two independent endosymbioses with red algae: one that originated the cryptophyte plastids (as in the previous models), and subsequently the haptophyte plastids; and another that originated the ochrophyte plastids, where the myzozoans obtained theirs.
=== Cookery Americana Series === Along the Northern Border: Cookery in Idaho, Minnesota, and North Dakota (1973), ISBN 9780405050411 Cooking in Old Creole Days (1973), ISBN 978-0405050466 Cool, Chill and Freeze: A New Approach to Cookery (1973), ISBN 978-0405050442 Directions for Cookery in its Various Branches (1973), ISBN 9780405050503 Fifty Years of Prairie Cooking (1973), ISBN 978-0405050473 Hand-Book of Practical Cookery (1973), ISBN 0-405-05042-9 High Living: Recipes from Southern Climes (1973), ISBN 9780405050510 Home Cookery, Ladies Indispensable Companion: Cookery in Northeastern Cities (1973), ISBN 978-0405050435 The Improved Housewife (1973), ISBN 9780405050558 The Kansas Home Cook-Book (1973), ISBN 9780405050459 Midwestern Home Cookery (1973), ISBN 978-0883940174 Mrs. Porter's New Southern Cookery Book (1973), ISBN 9780405050534 One Hundred Recipes for the Chafing Dish (1973), ISBN 9780405050480 Six Little Cooks (1973), ISBN 9780405050497 Southwestern Cookery: Indian and Spanish Influences (1973), ISBN 978-0405050541
Sources: en.wikipedia.org
== Characterization == Designing effective antimicrobial surfaces demands an in-depth understanding of the initial microbe-surface adhesion mechanisms. Scanning electron microscopy (SEM) is used for nonliving samples. Bacterial colony forming unit (CFU) counting requires overnight incubation and detects bacteria that readily grow on solid media. Molecular dynamics (MD) simulation can be used to minimize the number of experiments with engineered substrates, with the quantification of time-lapse fluorescence microscopy images that can be processed in an hour. Contact angle measurements can be used to characterize micro/nano-pillars use for rupturing cell walls. The analysis of the zeta potential by the streaming potential method of either an antimicrobial coating or a self-disinfectant material in contact with an aqueous environment, or by electrophoretic light scattering of nanoparticle dispersions of antibacterial additives reveal information about surface and interfacial charge and let predict the electrostatic attraction or repulsion of microorganisms.
The concept was successful enough to become a permanent fixture of the chain, and Little Caesars' business model has shifted to focus more on carryout. In 1998, Little Caesars filled what was then the largest pizza order, filling an order of 13,386 pizzas from the VF Corporation of Greensboro, North Carolina. Little Caesars was among the first to use a new kind of speed-cooking conveyor oven, the "Rotary Air Impingement Oven". On December 10, 2014, Little Caesars announced plans for a new eight-story, 205,000-square-foot Global Resource Center to be built at Woodward Avenue and Columbia Street in downtown Detroit. Intended to double the size of Little Caesars World Headquarters Campus, the new building's location was chosen near the Fox Office Center building, which houses both the Fox Theatre, and 186,000 square feet of office space for Little Caesars, and other Ilitch-affiliated ventures. An overhead pedestrian bridge over Columbia Street was planned to connect the Fox with the new Little Caesars Global Resource Center and workspace for an additional 600 jobs to be brought to Detroit over time. On January 31, 2016, it was announced that the proposed new Little Caesars Pizza Global Resource Center had grown by one floor to be a nine-story building at Woodward and Columbia Street. The building was scheduled to be completed in 2018, but in October of that year, was pushed back due to construction delays.
== Safety == The castor seed contains ricin, a toxic lectin. Heating during the oil extraction process denatures and deactivates the lectin. Harvesting castor beans, though, may not be without risk. The International Castor Oil Association states that castor beans contain a potentially allergenic compound, CB1A, which can affect people with hypersensitivity. The allergen may be neutralized by treatment with a variety of alkaline agents, and is not present in the castor oil itself.
Lake Afrera (in Italian Lake Giuletti) is a hypersaline lake in northern Ethiopia. Located in Kilbet Rasu, Afar Region, it is one of the lakes of the Danakil Depression. It has a surface of 117 km2 (45 mi2) and holds 2.4 km3 of brine. The maximal depth of Lake Afdera is 80 m in the northern basin and 76 m in the southern basin. No major river drains the lake. It is fed by hot springs along the shores of the lakes. It is also known as Lake Giulietti, the name Raimondo Franchetti gave it after the Italian explorer Giuseppe Maria Giulietti was slain by Afars southwest of the lake. Another name for this body of water is Lake Egogi (or Egogi Bad), which is the name L. M. Nesbitt's Afar guide gave it when the Italian explorer became the first European to see it in 1928. The single island in Lake Afrera, Franchetti Island (also known as "Deset"), located in the southern part of the lake, is considered the lowest-lying island in the world. Unlike other saline lakes in Ethiopia (e.g., Lakes Abijatta, Shala, and Chitu), the pH of Lake Afrera is low and in the acidic range. Although little studied, a few species of fish are hosted by Lake Afrera, including two endemics: Danakilia franchettii (a cichlid) and Aphaniops stiassnyae (syn. Lebias stiassnyae; a pupfish).
== Reception == Half Wild has generally received favourable reviews. Kirkus Reviews said "Green delivers vibrant characters, and Nathan’s relationships arc in thrilling highs and lows." and "The start of his journey feels slow and too safe, but the climax ushers in a bloody, unforgettable cliffhanger." concluding "A character-driven page-turner offering both emotional depth and gory thrills." Publishers Weekly called it "riveting" and went on to say "Although this tale has some of the weaknesses inherent in bridge novels ..., it features the same powerful language, well-developed characters, fascinating magic, and harrowing action sequences as its predecessor and will leave its readers anxiously awaiting the final volume." The Financial Times likened it to "a supercar endlessly revving at the kerb." and "Her witch-world seems to consist of board meetings interspersed with bouts of torture, spells and assassination." but then described it as "Harry Potter with a hard-on, in other words, and great fun." In a review for Booklist, Frances Bradburn wrote, "Once again, Green pushes the boundaries of definition; this time: What is wild? What is human or even civilized? The blood and gore, the willingness to endure and survive at any price, and the dichotomies between good and bad, love and hate, wild and civilized all haunt the reader, climaxing in a tragic ending that portends the horror, violence, and possible relationships in the trilogy’s final installment."
Sources: en.wikipedia.org
Many local effects can influence ice δD in addition to temperature. These effects include moisture origin and transport pathways, evaporation conditions and precipitation seasonality, which can be accounted for in more complicated models. Nevertheless, the Vostok ice core record shows some very important results: (1) A consistent δD depletion of ~70‰ during the last four glacial periods compared to interglacial times, corresponding to a cooling of 8°C in Antarctica; (2) A consistent drop of atmospheric CO2 concentration by 100 ppmv and CH4 drop by ~300 ppbv during glacial times relative to interglacials, suggesting a role of greenhouse gases in regulating global climate; (3) Antarctic air temperature and greenhouse gas concentration changes precede global ice volume and Greenland air temperature changes during glacial terminations, and greenhouse gases may be an amplifier of insolation forcing during glacial-interglacial cycles. Greenland ice core isotope records, in addition to showing glacial-interglacial cycles, also shows millennial-scale climate oscillations that may reflect reorganization in ocean circulation caused by ice melt charges. There have also been ice core records generated in alpine glacials on different continents. A record from the Andes Mountains in Peru shows a temperature decrease of 5-6°C in the tropics during the last ice age. A record from the Tibetan plateau shows a similar isotope shift and cooling during the last ice age.
Yet, the main problem that the socialist government of Felipe González had to face was the appearance of new scandals, which resulted in a harsh confrontation with the opposition, both the People's Party and the United Left, so that the fourth socialist mandate would be known as the "legislature of tension." The one with the greatest popular and media impact was the "Roldán case", named after the then director of the Civil Guard, Luis Roldán, who was arrested accused of having amassed a fortune thanks to his position and who four months later, in April 1994, went on the run. The former Interior Minister who appointed Roldán, José Luis Corcuera, had to resign as a deputy, as did the Interior Minister at the time, Antoni Asunción, for letting him escape. Roldán was arrested a year later in Laos and sent back to Spain where he was tried and sentenced to 28 years in prison.
Plants produce chemicals at the injury site that signal the presence of damage and may help to reduce further damage. The chemicals involved depend to some extent on the plant species, though several of them are shared among species; and the signals given depend on the cause of the injury. Plants injured by spider mites release volatile chemicals that attract predatory mites, serving to reduce the attack on the plants. As another example, maize plants damaged by the caterpillars of noctuid moths release a mixture of terpenoid substances which attract the parasitoid wasp Cotesia marginiventris, which kills caterpillars. Many plants give off such herbivory-induced signals.
=== Agriculture === Chitin is a good inducer of plant defense mechanisms for controlling diseases. It has potential for use as a soil fertilizer or conditioner to improve fertility and plant resilience that may enhance crop yields.
Prince Harry becomes the first senior member of the British royal family to give evidence in a court case in more than 130 years when he appears at the High Court to give evidence in his case against Mirror Group Newspapers. The Advertising Standards Authority bans a 2022 campaign by Shell plc for being "likely to mislead" consumers. 7 June Figures produced by Halifax Bank indicate house prices have dropped by 1% compared to 2022, the first such fall since 2012. It is announced that The Daily Telegraph and Sunday Telegraph, as well as The Spectator, are to be put up for sale to recover debts incurred by the publications' parent company. 8 June Prime Minister Rishi Sunak holds a joint press conference with US president Joe Biden at the White House to announce the Atlantic Declaration, an agreement to strengthen economic ties between the UK and US. Caroline Lucas, the Green Party's former leader and only MP, announces that she is stepping down from Parliament at the next election. 9 June The UK government announces that the planned windfall tax on oil and gas companies will be suspended if prices return to normal levels for a sustained period. Nadine Dorries announces she will stand down as Conservative MP for Mid Bedfordshire with immediate effect, triggering a by-election. On 14 June 2023 she said that she had submitted a subject access request to the House of Lords Appointments Commission (HOLAC) and was waiting to resign until she had received all unredacted "WhatsApps, text messages, all emails and minutes of meetings" related to why she was denied a peerage.
Sources: en.wikipedia.org
Cardarine is commonly known as GW501516 or GW-1516. These names refer to the same synthetic compound. It is not a brand-name approved medicine.
No, cardarine is not a steroid. It is classified as a PPARδ agonist. Its structure and receptor target differ from anabolic steroids.
No regulatory agency has approved cardarine as a medicine. It was investigated in early research but development was discontinued. It is not available as a prescription drug.
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.