The short version of research chemical fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2026-03-14 and is reviewed periodically as new material appears.
Proposed mechanisms include interaction with the nitric oxide system, modulation of growth factor signaling, and effects on blood vessel formation. None of these has been established as the primary mode of action, and some proposed pathways rest on indirect measurements. Whether the reported effects depend on a specific receptor has not been determined. Stability in gastric acid, unusual for a peptide of this size, is also reported in animal work, but the reason for it is not firmly established.
Published studies on BPC-157 are dominated by animal models. Commonly used endpoints include healing of surgically induced lesions in the stomach, tendon-to-bone attachment after transection, and recovery from experimentally induced vascular or intestinal damage. Many of these reports come from a small number of research groups, and the peptide is often described as acting across a wide range of tissue types. That breadth is itself a point of discussion, since one molecule influencing many unrelated systems is unusual.
Human data are far more limited than animal data. A small number of clinical reports exist, generally with few participants and without the randomization or blinding expected in later-phase trials. No large, independently replicated human trial has appeared in the indexed peer-reviewed literature. Statements about effects in people therefore rest on extrapolation from animal work rather than on direct evidence, and the strength of that extrapolation remains an open question rather than a settled matter.
Identity and purity are established with complementary methods rather than one test. Reverse-phase high-performance liquid chromatography separates the main peak from deletion sequences and oxidized variants, and its area percentage is the usual purity figure. Mass spectrometry confirms the expected molecular mass and can flag truncations or modifications that chromatography alone might miss. Amino acid analysis and peptide mapping add sequence-level confirmation, while residual counter-ion and water content are measured separately.
A freeze-dried sample is generally the most stable form and is commonly held at minus twenty degrees Celsius or lower for long-term keeping, with brief transfers at room temperature. The solid is hygroscopic, so vials are warmed to ambient temperature before opening to prevent condensation from degrading the contents. Light exposure and repeated temperature cycling are both avoided in routine handling. Storage over a desiccant is a common laboratory practice that limits moisture uptake during repeated access.
Once dissolved, the material is considerably less stable than the dry solid. Aqueous solutions are usually kept cold and used within a short window, and neutral or mildly acidic buffers are preferred over strongly alkaline conditions. Freeze-thaw cycles promote aggregation and loss of material to container surfaces, so dividing a batch into single-use aliquots is standard. Adsorption to plastic and glass can lower the measured concentration, meaning solution strength may need rechecking before an experiment.
| Property | Value | Notes |
|---|---|---|
| Study species | Rodents, mainly rats | Most reports use surgically induced injury models |
| Typical administration route | Subcutaneous or intraperitoneal injection | Routes differ between reports, which complicates comparison |
| Human trial evidence | Limited, small-scale reports | No large randomized trial in indexed journals |
| Reported outcome categories | Mucosal healing, tendon repair, vascular recovery | Endpoints are not standardized across studies |
| Mechanism status | Not established | Proposed pathways lack direct confirmation |
Terminology in the literature is not fully standardised. Papers and product listings use BPC-157, BPC 157, and the longer phrase stable gastric pentadecapeptide BPC 157 interchangeably, and synonyms such as bepecin or PL 14736 appear in older or company-linked publications. Purity claims and reported masses can also differ between sources because peptide preparations may include counterions, residual solvents, or bound water. This variability complicates direct comparison of results across studies and makes the exact identity and grade of a given sample worth verifying. Discussions of the compound should therefore specify the source, salt form, and stated purity where those are known.
BPC-157 is a synthetic peptide composed of fifteen amino acid residues, with the sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. Its name derives from body protection compound, a term used for a protein fraction identified in human gastric juice. Researchers in Zagreb first reported the pentadecapeptide in the early 1990s and described it as a stable fragment of that larger protein. The compound is also catalogued as PL 14736 and, in some commercial contexts, as bepecin. Its molecular formula is C62H98N16O22 and its monoisotopic mass is approximately 1419 daltons.
Most published work on BPC-157 consists of preclinical studies, including rodent models of tissue injury, gastrointestinal lesions, and vascular or tendon damage, together with in vitro cell assays. Reviews frequently note that the mechanisms proposed in these papers remain incompletely characterised and that findings have not been confirmed in large randomised human trials. The compound is widely sold as a research chemical rather than a licensed medicine, and labels commonly carry a statement that it is not for human use. Whether any of the reported animal effects translate to humans is an open question rather than an established result.
Doses in the literature are usually expressed in micrograms or nanograms per kilogram of body weight. Investigators have administered the peptide by several routes, including injection and oral delivery, depending on the question asked. Route and dose vary widely across studies, which complicates direct comparison of results. Many papers report effects at low doses, but the absence of a standardized protocol limits generalization. Reporting practice differs between research groups.
Some properties, such as the peptide's sequence and molecular mass, are firmly established. Other claims, particularly about mechanism and clinical benefit, remain open questions. Proposed mechanisms include effects on nitric oxide signaling and on cell migration, but these are hypotheses supported by limited evidence. Reviewers often note that the field lacks large controlled human trials. Positive animal findings are best treated as signals for further study rather than as settled conclusions.
Most published studies examine BPC-157 in animal models rather than in humans. Common subjects include rats and mice, and researchers often use models of tissue injury, surgery, or induced inflammation. Reported endpoints include healing rates, blood vessel formation, and markers of tissue repair. These designs provide controlled comparisons, but findings in animals do not automatically transfer to people. Human clinical data remain limited and are frequently described as preliminary.
Within the research literature, the peptide is discussed through several provisional mechanisms, including cytoprotection, modulation of growth factor signaling, and interaction with the nitric oxide system. None of these mechanisms is fully characterized, and no single pathway is universally accepted. Review articles typically note the gap between consistent animal findings and sparse human evidence. The compound is classified as a research chemical rather than an approved pharmaceutical, which shapes how studies are designed, funded, and reported.
BPC-157 is a synthetic pentadecapeptide with the sequence GEPPPGKPADDAGLV, corresponding to a partial fragment of a larger protein detected in human gastric juice. The name derives from the parent protein designation BPC, an abbreviation of body protection compound, with 157 acting as a fraction or batch identifier used by the original investigators. Its molecular weight is approximately 1419 daltons, and the chain contains no unusual residues or disulfide bridges. In the literature it is described as a short, water-soluble fragment rather than a complete natural protein.
Interest in the peptide has grown through online communities that discuss self-administered use, which sits outside formal research settings. Regulatory status varies by country, and in many jurisdictions the compound is not approved as a therapeutic product. Questions about optimal routes of administration, long-term effects, and dose-response relationships remain open. Published pharmacokinetic data in humans are limited, and much of what circulates in popular discussion is extrapolated from animal work rather than measured directly in people.
BPC-157 is a synthetic peptide built from fifteen amino acids, referred to in the literature as a pentadecapeptide. Its sequence was derived from a larger protein found in human gastric juice, commonly called body protection compound. Researchers first described the fragment in the early 1990s and named it after the parent protein plus a numeric identifier. The peptide does not correspond to a single marketed medicine; it is primarily a laboratory research material. Suppliers distribute it as a lyophilized powder intended for experimental use.
Some cultures have long celebrated and even worshipped the vulva. During the Uruk period (c. 4000–3100 BC), the ancient Sumerians regarded the vulva as sacred and a vast number of Sumerian poems praising the vulva of Inanna, the goddess of love, sex, and fertility, have survived. In Sumerian religion, the goddess Ninimma is the divine personification of the vulva. Vaginal fluid is always described in Sumerian texts as tasting "sweet" and, in a Sumerian bridal hymn, a young maiden rejoices that her vulva has grown hair. Clay models of vulvas were discovered in the temple of Inanna at Ashur. Some major Hindu traditions such as Shaktism, a goddess-centered tradition, revere the vulva and vagina under the name yoni. The goddess as Devi is worshipped as the supreme deity. The yoni is a representation of the female deity and is found in many temples as a focus for prayer and offerings. It is also represented symbolically as a mudra in spiritual practices, including yoga. Sheela na gigs are figurative carvings of naked women displaying an exaggerated vulva. They are found in ancient and medieval European contexts. They are displayed on many churches, but their origin and significance is debatable. A main line of thinking is that they were used to ward off evil spirits. Another view is that the sheela na gig was a divine assistant in childbirth. Starr Goode explores the image and possible meanings of the Sheela na gig and Baubo images in particular, but writes also about the recurring image worldwide.
=== Scientific discoveries === The first evidence of helium was observed on August 18, 1868, as a bright yellow line with a wavelength of 587.49 nanometers in the spectrum of the chromosphere of the Sun. The line was detected by French astronomer Jules Janssen during a total solar eclipse in Guntur, India. This line was initially assumed to be sodium. On October 20 of the same year, English astronomer Norman Lockyer observed a yellow line in the solar spectrum, which he named the D3 because it was near the known D1 and D2 Fraunhofer lines of sodium. He concluded that it was caused by an element in the Sun unknown on Earth. Lockyer named the element helium, from the Greek word for the Sun, ἥλιος (helios). It is sometimes said that English chemist Edward Frankland was also involved in the naming, but this is unlikely as he doubted the existence of this new element. The ending "-ium" is unusual, as it normally applies only to metallic elements; probably Lockyer, being an astronomer, was unaware of the chemical conventions.
Following the re-election of Donald Trump in November 2024, Lula congratuled Trump on X (formerly Twitter) and again, after his inauguration, in January 2025, when Lula also highlighted Brazil-United States historical friendship. After Trump first threatened to impose tariffs on steel and aluminium in February 2025, and fulfilled that in March, Lula warned the United States economy could self-inflict damage, and promised to open a complaint against the 25% tariffs imposed on Brazilian steel and aluminum exports bound to US at the World Trade Organization. He also said he would not hesitate to call Trump to disscuss such tariffs, and hoped he answered his call.
=== Phase 2 === ASP-8062 – GABAB receptor positive allosteric modulator – alcoholism BP-1.3656B (BP-1.3656; BP1.3656B; BP13656) – histamine H3 receptor antagonist – alcoholism BP-1.4979 (BP-1.4979; BP-14979; BP14979) – dopamine D3 receptor partial agonist – smoking withdrawal Brenipatide (LY-3537031) – glucagon-like peptide-1 (GLP-1) receptor agonist, gastric inhibitory polypeptide (GIP) receptor agonist – smoking withdrawal Buprenorphine sublingual ethanol-free (CHF-6563; CHF6563) – μ-opioid receptor agonist, δ-opioid receptor agonist, κ-opioid receptor antagonist, nociceptin receptor agonist – opioid-related disorders Buprenorphine/naloxone (naloxone/buprenorphine) – combination of buprenorphine (non-selective opioid receptor modulator) and naloxone (orally/sublingually inactive opioid receptor antagonist) – opioid-related disorders Bupropion/dextromethorphan (bupropion/DXM; Auvelity; AXS-05) – combination of bupropion (norepinephrine–dopamine reuptake inhibitor (NDRI), nicotinic acetylcholine receptor antagonist, CYP2D6 inhibitor) and dextromethorphan (DXM) (NMDA receptor antagonist, serotonin reuptake inhibitor, sigma receptor agonist, other actions) – smoking withdrawal Bupropion/naltrexone (Contrave; CX-101; Mysimba; naltrexone/bupropion; NB32) – combination of bupropion (norepinephrine–dopamine reuptake inhibitor (NDRI), nicotinic acetylcholine receptor antagonist) and naltrexone (opioid receptor antagonist) – smoking withdrawal Cannabidiol (CBD; A-1002-N5S; Nantheia) – cannabinoid/various actions – opioid-related disorders, smoking withdrawal Cannabidiol (CBD; Epidiolex; Epidyolex; Epidiolexa; GW-42003; GWP-42003; GWP-42003-P; JZP-926) – cannabinoid/various actions – heroin-related disorders, opioid-related disorders Centanafadine (CTN-SR; EB-1020) – serotonin–norepinephrine–dopamine reuptake inhibitor (SNDRI) – smoking withdrawal Cocaine esterase (RBP-8000; TNX-1300) – enzyme replacement – cocaine-related disorders Cyproheptadine/prazosin (KT-110; Periactine/Alpress) – combination of cyproheptadine (various actions) and prazosin (α1-adrenergic receptor antagonist) – alcoholism Devextinetug (anti-methamphetamine chimeric monoclonal antibody; Ch-mAb7F9; IXT-m200; METH-mAb) – immunomodulator (monocloncal antibody against methamphetamine) – substance-related disorders F-652 (IL-22 IgG2 Fusion Protein; IL-22 IgG2-Fc; rhIL-22 dimer) – interleukin, immunoglobulin Fc fragment, recombinant fusion protein, anti-inflammatory, hepatoprotectant – alcoholism and alcoholic hepatitis Ibudilast (AV-411; Eyevinal; Ibinal; KC-404; Ketas; MN-166; Pinatos) – phosphodiesterase PDE4 inhibitor, toll-like receptor 4 (TLR4) antagonist – alcoholism, opioid-related disorders, substance-related disorders Liraglutide (LATIN-T1D; NN-2211; NN-9211; NN-8022; NNC-90-1170; Saxenda; Victoza) – glucagon-like peptide-1 (GLP-1) receptor agonist – smoking withdrawal Lixosicone (AEF-0117; AEF0117) – biased cannabinoid CB1 receptor negative allosteric modulator (pregnenolone derivative) – substance-related disorders Mavoglurant (AFQ-056; STP-7) – metabotropic glutamate mGlu5 receptor antagonist – alcoholism Mazdutide (IBI-362; LY-3305677; OXM-3) – glucagon-like peptide-1 (GLP-1) receptor agonist, glucagon receptor agonist – alcoholism Mebufotenin benzoate (5-MeO-DMT; BPL-002; BPL-003) – non-selective serotonin receptor agonist, serotonin 5-HT1A and 5-HT2A receptor agonist, serotonergic psychedelic – alcoholism Metyrapone/oxazepam (EMB-001C; EMB-001) – combination of metyrapone (11β-hydroxylase inhibitor and cortisol synthesis inhibitor) and oxazepam (benzodiazepine/GABAA receptor positive allosteric modulator) – cocaine-related disorders Midomafetamine (MDMA) – serotonin–norepinephrine–dopamine releasing agent (SNDRA), serotonin 5-HT2 receptor agonist, entactogen – alcoholism Mifepristone (C-1073; Corlux; Corluxin; Korlym; Mifegyne; Mifeprex; RU-38486; RU-486) – glucocorticoid, progesterone, and androgen receptor antagonist – alcoholism Miricorilant (CORT-118335) – glucocorticoid and mineralocorticoid receptor antagonist – alcoholism Nadolol (INV-102; INV102) – non-selective beta blocker (β1- and β2 adrenergic receptor agonist) – smoking withdrawal Neboglamine (nebostinel; CR-2249; XY-2401) – ionotropic glutamate glycine-gated NMDA receptor agonist – cocaine-related disorders NNC0194-0499 (NN-9500; NN-9499; NNC-0194-0499) – fibroblast growth factor (FGF) receptor agonist – substance-related disorders NS-2359 (GSK-372475) – serotonin–norepinephrine–dopamine reuptake inhibitor (SNDRI) – cocaine-related disorders OMS-405 (OMS405) – PPARγ agonist – opioid-related disorders, smoking withdrawal Pemvidutide (ALT-801- Altimmune; SP-1373; VPD-107) – glucagon-like peptide-1 (GLP-1) receptor agonists, glucagon receptor agonist – alcoholism Psilocybin (SYNP-101; synthetic psilocybin) – non-selective serotonin receptor agonist, serotonin 5-HT2A receptor agonist, and serotonergic psychedelic – alcoholism Selonabant (ANEB-001; V-24343) – cannabinoid CB1 receptor antagonist – substance-related disorders Sunobinop (IMB-115; IT-1315; RSC117957; S-117957; V-117957) – nociceptin receptor agonist – alcoholism TA-CD (TA-CD; TA-CD09) – immunostimulant (cocaine vaccine) – cocaine-related disorders Zabaglurant (Heptares 25; HTL-0014242; HTL14242; TMP-301) – metabotropic glutamate mGlu5 receptor negative allosteric modulator – alcoholism Zolunicant (18-methoxycoronaridine; 18-MC; MM-110) – α3β4 nicotinic acetylcholine receptor antagonist – opioid-related disorders
== See also == History of atomic theory History of molecular theory History of crystallography before X-rays Geometrical crystallography before X-rays Physical crystallography before X-rays Timeline of chemistry Timeline of crystallography
Sources: en.wikipedia.org
=== 16 January === German Defence Minister Christine Lambrecht resigned in part due to blunders over German support for Ukraine. A grenade exploded in Tonenkoye village's community center, which was used to store ammunition and house Russian soldiers. TASS reported that the RGD-5 grenade explosion in Belgorod Oblast killed 3 soldiers and wounded 16. Eight soldiers were missing. Russia secured control of Soledar after capturing the last industrial zone near mine number 7 from Ukrainian troops. Ukraine admitted that they had lost Soledar.
== Treatment == If nipple pain is not resolved effectively after general management, appropriate treatment can be directed at underlying causes. Nevertheless, except the general management mentioned before, all common therapeutic practices in treating nipple pain during breastfeeding are not proven to be effective yet.
The first steps to digitization in trucking came in the form of digital freight exchanges such as Teleroute and TIMOCOM. Greater efficiency in trucking is being achieved through intelligent freight technology such as automated interfaces that can help truckers and regulatory bodies reduce stops at weigh stations and time spent at border checkpoints. This improves schedule adherence, reduces administrative burdens, and increases fuel efficiency by minimizing time spent idling. Mobile tracking programs can also reduce theft and loss of cargo by recording instances where trailer doors are opened outside of approved areas (geo-fences) and alerting authorities. Growing automation of quoting and booking of truckload shipments and increased automation of matching trucks with appropriate loads in a timely manner is also working to maximize efficiency for shippers and consumers. Cargofy is an example of a freight technology company using artificial intelligence to automate freight procurement, load matching, dispatching and other logistics operations. Vehicle tracking has been used by shipping agents and freight forwarders to monitor the location of vehicles. They can also monitor traffic information, vehicle and driver data, and other real-time freight information. Due to the relatively short life cycle of three to four years for commercial trucks, implementation of new interfaces and freight technologies has progressed more quickly in trucking than in other sectors.
==== EU ==== On July 27, 2025, the United States and the European Union concluded a trade agreement, providing for 15% tariffs on European exports. The deal was announced by Trump and President of the European Commission Ursula von der Leyen at Turnberry, Scotland. European states committed to $750 billion in energy purchases and $600 billion in additional investments in the United States.
==== Overview ==== In July 2012, GSK pleaded guilty in the United States to criminal charges, and agreed to pay US$3 billion, in what was the largest settlement until then between the Justice Department and a drug company. The US$3 billion included a criminal fine of US$956,814,400 and forfeiture of US$43,185,600. The remaining US$2 billion covered a civil settlement with the government under the False Claims Act. The investigation was launched largely on the basis of information from four whistleblowers who filed qui tam (whistleblower) lawsuits against the company under the False Claims Act. The charges stemmed from GSK's promotion of the anti-depressants Paxil (paroxetine) and Wellbutrin (bupropion) for unapproved uses from 1998 to 2003, specifically as suitable for patients under the age of 18, and from its failure to report safety data about Avandia (rosiglitazone), both in violation of the Federal Food, Drug, and Cosmetic Act. Other drugs promoted for unapproved uses were two inhalers, Advair (fluticasone/salmeterol) and Flovent (fluticasone propionate), as well as Zofran (ondansetron), Imitrex (sumatriptan), Lotronex (alosetron) and Valtrex (valaciclovir). The settlement also covered reporting false best prices and underpaying rebates owed under the Medicaid Drug Rebate Program, and kickbacks to physicians to prescribe GSK's drugs. There were all-expenses-paid spa treatments and hunting trips for doctors and their spouses, speakers' fees at conferences, and payment for articles ghostwritten by the company and placed by physicians in medical journals.
Sources: en.wikipedia.org
SIMS is a mass spectrometry method to measure small-scale elemental and isotopic variations of samples. Its ability to measure in spots with a narrow diameter (10–40 μm) makes it a useful tool to date small (<100 μm) mineral grains and individual domains within a single crystal. SIMS can achieve a precision of ~3%. Sensitive high-resolution ion microprobe (SHRIMP) is widely regarded as a powerful tool among SIMS. SIMS analyzes the mineral surface (a few μm) composition by sputtering the surface with a focused primary ion beam under vacuum. The secondary ions liberated from the mineral are accelerated, measured and analyzed in the mass spectrometer. Sample are analysed in rotation with a standard of known elemental or isotopic ratios in order to determine the ratios in the sample for dating.
Levobunolol (trade names AKBeta, Betagan, Vistagan, among others) is a non-selective beta blocker. It is used topically in the form of eye drops to manage ocular hypertension (high pressure in the eye) and open-angle glaucoma.
==== 2023 All-Ireland Senior Football Championship ==== 30 July – Dublin won their 31st All-Ireland football title after a 1–15 to 1–13 win against defending champions Kerry in the All-Ireland SFC final.
Neuromodulation is "the alteration of nerve activity through targeted delivery of a stimulus, such as electrical stimulation or chemical agents, to specific neurological sites in the body". It is carried out to normalize – or modulate – nervous tissue function. Neuromodulation is an evolving therapy that can involve a range of electromagnetic stimuli, such as a magnetic field (rTMS), an electric current, or a drug delivered directly into the subdural space (intrathecal drug delivery). Emerging applications involve targeted introduction of genes or gene regulators and light (optogenetics), and by 2014, these had been at minimum demonstrated in mammalian models, or first-in-human data had been acquired. The most clinical experience has been with electrical stimulation. Neurotherapy, in modern use, is a synonym for neuromodulation. While neurotherapy may have a broader meaning, its modern definition focuses exclusively on technological methods that exert an energy-based effect on the development of a balanced nervous system in order to address symptom control and cure several conditions. Neurotherapy is a medical treatment that implements systemic targeted delivery of an energy stimulus or chemical agents to a specific neurological zone in the body to alter neuronal activity and stimulate neuroplasticity in a way that develops (or balances) a nervous system in order to treat different diseases, restore and/or to improve patients' physical strength, cognitive functions, and overall health.
Sources: en.wikipedia.org
It is not authorized as a medicine in the United States or the European Union. Regulatory treatment varies by jurisdiction, and in several places it is handled as a research chemical. Therapeutic claims are not supported by large human trials.
Human evidence is sparse and comes from small reports rather than large trials. Sample sizes are generally too small to support firm conclusions. The published record does not contain an independently replicated randomized trial.
Several pathways have been proposed, including effects on nitric oxide signaling and vessel formation. Direct confirmation of a primary molecular target is lacking. Some findings rest on indirect measurements, which leaves the mechanism an open question.
Low temperature slows the chemical reactions, such as oxidation and hydrolysis, that break down a peptide chain. Water and oxygen are the main drivers of degradation, so a cold and dry environment extends usable life. Actual shelf life depends on the batch, the salt form, and the container.