Everything below concerns LC-MS/MS. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Updated 2026-06-15. Numbers and descriptions here follow the published literature rather than marketing material.
Preclinical reports have linked SR9009 to improved endurance and altered energy expenditure in rodents. Such findings have prompted interest in whether REV-ERB activation can influence skeletal muscle metabolism. However, the reported effects depend on dose, route, and experimental model, and replication across laboratories is limited. Human trials have not established comparable outcomes, so claims about exercise performance remain speculative. The absence of controlled human data is a central limitation in interpreting these observations.
The mechanism of action involves binding to REV-ERB receptors and recruiting corepressor complexes, which represses target gene transcription. This contrasts with many nuclear receptor agonists that activate transcription. Downstream effects may include changes in autophagy, mitochondrial biogenesis, and lipid handling, but the precise pathways remain an active area of study. Whether these molecular events translate into meaningful physiological effects in humans is unresolved. Most evidence comes from cultured cells and rodent models rather than human participants.
SR9009 is a synthetic small molecule developed as an agonist of the nuclear receptors REV-ERBα (NR1D1) and REV-ERBβ (NR1D2). These receptors help regulate circadian rhythms and metabolic gene expression. In cell and animal studies, SR9009 alters transcription of genes involved in lipid metabolism, inflammation, and mitochondrial function. It is not an approved medicine, and its pharmacological profile in humans remains largely uncharacterized. The compound is frequently discussed in the context of circadian biology and metabolic research rather than clinical use.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ, also called NR1D1 and NR1D2. These receptors help regulate circadian rhythms and metabolic gene programs. The compound was developed for laboratory research, not as an approved therapeutic. Its identity is distinct from steroid hormones and selective androgen receptor modulators. Scientific interest centers on how REV-ERB activation changes gene expression in cells and animal models.
At the molecular level, SR9009 binds the ligand-binding domain of REV-ERB and strengthens recruitment of corepressor proteins such as NCoR and HDAC3. This increases repression of target genes, including Bmal1 and other clock-controlled and metabolic genes. In rodent studies, such changes have been linked to altered lipid handling, glucose metabolism, and energy expenditure. The precise chain of events between receptor binding and whole-body effects remains an active area of research. Findings in animals do not automatically translate to humans.
| Property | Value | Notes |
|---|---|---|
| Chemical class | Synthetic REV-ERB agonist | Small molecule; not a steroid or peptide. |
| Primary targets | NR1D1 and NR1D2 | Also known as REV-ERBα and REV-ERBβ. |
| Studied routes | Intraperitoneal in rodents | Oral bioavailability in humans is not established. |
| Human approval | No approved therapeutic indication | No recognized clinical use. |
| Key uncertainty | Human physiological effects | Preclinical findings may not translate. |
At the molecular level, SR9009 binds REV-ERBα and REV-ERBβ and alters their repressive activity on target genes. These nuclear receptors help regulate the circadian clock, lipid synthesis, glucose metabolism, and inflammatory pathways. By changing transcription, the compound can shift the timing or magnitude of downstream metabolic processes in model systems. It does not act through androgen receptors or adenosine receptors, which distinguishes it from several substances sold for athletic performance. Whether the same transcriptional changes occur in humans at tolerable exposures remains an open question because controlled human studies are lacking.
Preclinical reports describe effects on exercise endurance, mitochondrial content, and lipid profiles in rodents, but these findings come from specific experimental conditions. Many studies use high doses or delivery methods that may not translate directly to human use. SR9009 has been reported to have low oral bioavailability and a short half-life, which complicates interpretation of oral dosing studies. It is not established as safe or effective for any indication. Literature discussions often separate its pharmacological mechanism from unverified claims made in fitness and supplement markets.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ. It is not an approved medicine and has no established human therapeutic use. The compound appears in scientific literature as a tool for probing circadian and metabolic regulation. Online sellers often label it as a research chemical, sometimes using the nickname Stenabolic. Its chemical identity is distinct from selective androgen receptor modulators, stimulants, and peroxisome proliferator-activated receptor delta agonists. Researchers use it mainly in cell and animal experiments.
Regulatory treatment of SR9009 varies by country and context. It is not approved as a therapeutic drug by agencies such as the United States Food and Drug Administration or the European Medicines Agency. Sports authorities list it as a prohibited substance; the World Anti-Doping Agency classifies it among hormone and metabolic modulators. Legal status for personal possession or sale differs across jurisdictions, and some countries may restrict it under analog or research chemical laws. Buyers who seek verified material often rely on independent laboratory testing because online product labels may not match contents.
Laboratory samples of SR9009 are typically handled as research chemicals rather than pharmaceuticals. Suppliers usually state that the material is for research use only and not for human or veterinary administration. Storage recommendations generally call for a freezer at approximately −20 °C, protection from light, and a desiccated environment. The solid is often described as a white to off-white powder. Solubility is commonly reported in organic solvents such as dimethyl sulfoxide and ethanol, with low solubility in water.
Analytical identification and purity assessment often use high-performance liquid chromatography with ultraviolet detection or mass spectrometry. Liquid chromatography–tandem mass spectrometry is used to detect and quantify SR9009 in biological matrices, including urine and blood, for anti-doping or pharmacokinetic studies. Nuclear magnetic resonance spectroscopy can confirm molecular structure. Stability depends on form and storage: the solid is generally more stable than solutions, and repeated freeze–thaw cycles may degrade samples. Purity is typically reported as a percentage from a certificate of analysis.
Scientific discussion of SR9009 often separates animal evidence from human anecdote. Rodent studies provide controlled data on endurance, metabolism, and gene expression, but they use specific strains, doses, and treatment durations. Human reports are mostly uncontrolled and cannot establish cause and effect. Open questions include oral bioavailability, tissue distribution, metabolic stability, and long-term effects. Review articles generally call for more rigorous pharmacokinetic and safety research before any clinical use could be considered.
Analytical methods for SR9009 typically rely on liquid chromatography coupled with tandem mass spectrometry. The technique can separate the parent compound from related substances and detect low concentrations in biological matrices. Urine and blood are common samples in anti-doping testing, while in vitro studies may use cell culture media. Rapid metabolism and low expected concentrations make method validation important for reliable identification. Exact metabolite patterns can vary by species and are not fully mapped.
Detection of SR9009 in biological samples usually employs liquid chromatography coupled with tandem mass spectrometry. This method can identify the parent compound and sometimes metabolites in urine or blood. Because exposure can be low and clearance may be rapid, sample timing and limits of detection matter. Laboratories validate assays for sensitivity and specificity. Results are interpreted alongside chain-of-custody and quality-control records. Urine is the common matrix for anti-doping analysis, while blood may be used in research settings.
Handling recommendations for SR9009 in a laboratory setting include storing the solid at low temperature, protected from light and moisture. The compound is often dissolved in dimethyl sulfoxide or ethanol for experiments. Solutions should be prepared with appropriate personal protective equipment and disposed of according to local rules. Stability data for long-term storage are limited, so stock solutions are typically kept cold and used within defined periods. Records of preparation date and concentration support reproducibility.
SR9009 is not approved as a medicine by major regulatory agencies. It is commonly sold as a research chemical, a category that may fall outside customary drug approval and quality rules. In sports, the World Anti-Doping Agency lists SR9009 as a prohibited substance. Athletes who use it can face sanctions if it is detected in a sample. Legal status varies by country, and importation may be restricted. Enforcement practices differ across borders.
=== Surgery === In severe cases, an endoscopic thoracic sympathectomy procedure can be performed. Here, the nerves that signal the blood vessels of the fingertips to constrict are surgically cut. Microvascular surgery of the affected areas is another possible therapy, but this procedure should be a last resort. A more recent treatment for severe Raynaud's is botulinum toxin. In a 2009 study of 19 patients ranging in age from 15 to 72 years with severe Raynaud's phenomenon, 16 patients (84%) reported pain reduction at rest, 13 patients reported immediate pain relief, and three had gradual pain reduction over 1–2 months. All 13 patients with chronic finger ulcers healed within 60 days. Only 21% of the patients required repeated injections. A 2007 article describes similar improvement in a series of 11 patients. All patients had significant relief of pain.
== History == The ability of a soapy solution to act as a detergent has been recognized for centuries. However, it was only at the beginning of the twentieth century that the constitution of such solutions was scientifically studied. Pioneering work in this area was carried out by James William McBain at the University of Bristol. As early as 1913, he postulated the existence of "colloidal ions" to explain the good electrolytic conductivity of sodium palmitate solutions. These highly mobile, spontaneously formed clusters came to be called micelles, a term borrowed from biology and popularized by G.S. Hartley in his classic book Paraffin Chain Salts: A Study in Micelle Formation. The term micelle was coined in nineteenth century scientific literature as the ‑elle diminutive of the Latin word mica (particle), conveying a new word for "tiny particle".
Xi's foreign policy thoughts are collectively known as Xi Jinping Thought on Diplomacy. Xi has promoted major-country diplomacy, stating that China is already a "big power" and breaking away from previous Chinese leaders who had a more precautious diplomacy. Diplomats under Xi have adopted a hawkish foreign policy posture called "wolf warrior diplomacy" starting from the late 2010s; this form of diplomacy peaked in the early 2020s and declined afterwards. Xi frequently says that the world is seeing "great changes unseen in a century", referring to geopolitical shifts in which the United States is seen as a declining power and in which the rise of populism, economic securitization, and advancing technology create an environment of uncertainty that results in both opportunities and threats for China. In October 2020, he said that "the East is rising and the West is declining", saying that the power of the Western world was in decline as exemplified by their COVID-19 response, and that China was entering a period of opportunity because of this. Xi has frequently alluded to community with a shared future for mankind, which Chinese diplomats have said does not imply an intention to change the international order, but which foreign observers say China wants a new order that puts it more at the centre. During the Xi administration, China seeks to shape international norms and rules in emerging policy areas where China has an advantage as an early participant.
Sources: en.wikipedia.org
The Patrol Ration Pac (PRP) is a shelf-stable product that provides an efficient, flexible and nutritionally robust feeding method. The PRP is designed to cover activities when you have access to other food sources during the day and is ideal to replace a single meal or provide snack options. The PRP provides approximately one-third of the energy and nutrient requirements of most military personnel during moderate, prolonged-intensity physical activity, in a temperate environment. Therefore, it is desirable that all of the food in the pack is eaten. Menus A, B and C contain main meals that can be heated using a flameless ration heater along with other ready to eat foods and a beverage powder. Menu D provides ready to eat snack foods and no beverage powder.
== Types == Since the definition of well-being spans several dimensions, researchers have proposed various frameworks to capture its different forms. Types of well-being can be categorized by how they are measured, to whom they apply, and which domain of life they affect. Some researchers limit their inquiry to one specific type, while others investigate the interrelations among them.
A myristic acid molecule is attached to this analogue, which associates the insulin molecule to the abundant serum albumin, which in turn extends the effect and reduces the risk of hypoglycemia. Both protracted analogues need to be taken only once daily, and are used for type 1 diabetics as the basal insulin. A combination of a rapid acting and a protracted insulin is also available, making it more likely for patients to achieve an insulin profile that mimics that of the body's own insulin release. Insulin is also used in many cell lines, such as CHO-s, HEK 293 or Sf9, for the manufacturing of monoclonal antibodies, virus vaccines, and gene therapy products. Insulin is usually taken as subcutaneous injections by single-use syringes with needles, via an insulin pump, or by repeated-use insulin pens with disposable needles. Inhaled insulin is also available in the U.S. market. Those who take insulin may choose a particular method of administration for improved blood glucose control, discrete delivery, comfort, or cost, among a variety of other factors. Unlike many medicines, insulin cannot be taken by mouth because, like nearly all other proteins introduced into the gastrointestinal tract, it is reduced to fragments, whereupon all activity is lost. There has been some research into ways to protect insulin from the digestive tract, so that it can be administered orally or sublingually. In 2021, the World Health Organization added insulin to its model list of essential medicines.
The cultivation of opium [in Afghanistan] reached its peak in 1999, when 350 square miles (910 km2) of poppies were sown ... The following year the Taliban banned poppy cultivation, ... a move which cut production by 94 percent ... By 2001 only 30 square miles (78 km2) of land were in use for growing opium poppies. A year later, after American and British troops had removed the Taliban and installed the interim government, the land under cultivation leapt back to 285 square miles (740 km2), with Afghanistan supplanting Burma to become the world's largest opium producer once more. Opium production in that country has increased rapidly since, reaching an all-time high in 2006. War in Afghanistan once again appeared as a facilitator of the trade. Some 3.3 million Afghans are involved in producing opium.
Sources: en.wikipedia.org
The Soviet Salyut programme, conducted in the 1970s and 1980s, put a crewed space station in long term orbit; two of the successful installations to the station were covers for secret military Almaz reconnaissance stations: Salyut 3 and Salyut 5. During the whole duration of the cold war, the US and the USSR represented the largest and dominant space powers of the world. Despite their fierce competition, both nations signed international space treaties in the 1960s which would limit the militarization of space. The first research of anti-satellite weapon technology also came about during this period. Later, the US and USSR pursued some cooperation in space as part of détente, notably the Apollo–Soyuz orbital rendezvous and docking.
November 23, 2008: Hawaii Economists at the University of Hawaii reported that the state entered the recession in the previous quarter based on the drop in tourist figures and growing unemployment, with 8,800 jobs expected to be cut in 2009.
=== Endometrium === The endometrium after the process of breakdown via the menstruation cycle, re-epithelializes swiftly and regenerates. Though tissues with a non-interrupted morphology, like non-injured soft tissue, completely regenerate consistently; the endometrium is the only human tissue that completely regenerates consistently after a disruption and interruption of the morphology. The inner lining of the uterus is the only adult tissue to undergo rapid cyclic shedding and regeneration without scarring, shedding and restoring roughly inside a 7-day window on a monthly basis. All other adult tissues, upon rapid shedding or injury, can scar.
On April 4, 2020, Craftworks announced that all the Logan's Roadhouse locations would remain closed indefinitely, and that all 18,000 employees would be laid off. On June 12, 2020, SPB Hospitality purchased Craftworks restaurants out of bankruptcy for $93 million.
The presence of Sialyl-Lewisx antigen (cluster of differentiation 15s (CD15s)), which is a fucosylated glycan, on the outer cell membrane, correlates with invasion potential of malignant cells, tumor recurrence, and overall patient survival for an extremely wide range of cancers. Expression of the Vim2 antigen, which is another SeV cell entry receptor represented by fucosylated glycan, is very important for the extravascular infiltration process of acute myeloid leukemia cells. Metastatic cancer cells often are coated with glycolipids that are rich in sialic acids. SeV binds to α2,3-linked sialic acid containing glycolipids. For example, GD1a, which is a ganglioside and sialylated glycan (glycolipid), is found in large quantities on the surfaces of breast cancer stem cells. High cell surface expression of another SeV receptor – ganglioside sialosylparagloboside /SPG/ NeuAcα2-3PG. characterizes lymphoid leukemia cells. Among other receptors represented by gangliosides GT1b is highly expressed on the outer membranes of cells of brain metastases that originate from an extremely broad range of cancer, while GD1a, GT1b and GQ1b can be detected in human gliosarcomas. However, their quantity does not exceeded the quantity in normal frontal cerebral cortex.
Sources: en.wikipedia.org
It is a synthetic compound that acts as an agonist at REV-ERBα and REV-ERBβ. It is used mainly as a research chemical to study circadian and metabolic pathways. It is not approved for human therapeutic use.
REV-ERB receptors generally repress transcription when bound by natural heme. SR9009 is described as an agonist that enhances this repressive activity. The result is altered expression of clock and metabolic genes.
Published controlled human trials are lacking. Some sources cite limited or unofficial reports, but these do not establish safety or efficacy. Claims about human performance effects remain unverified.
SR9009 is a synthetic research compound that activates the REV-ERBα and REV-ERBβ nuclear receptors. It is not an approved drug and has no established human therapeutic use. Most published biological data come from cell and rodent studies.