gastric emptying

Acotiamide monohydrochloride trihydrate (Z-338 HCl) is the hydrochloride salt form of acotiamide, a prokinetic agent with gastrointestinal (GI) motility-enhancing activity. Although the exact mechanism by which acotiamide exerts its effect has yet to be fully elucidated, this agent appears to inhibit acetylcholinesterase (AchE), an enzyme responsible for the breakdown of acetylcholine (Ach). Increased Ach concentrations lead to an improvement of gastric emptying and GI motility and eventually to a reduction of dyspepsia symptoms.

Ecabapide (DQ-2511) is a novel gastrointestinal motility promoter that significantly enhances gastric emptying in SHRSP.Ecabapide activates cyclic GMP-dependent housekeeping Cl- channels in rabbit gastric wall cells.

Relamorelin(BIM28131, RM131) is a selective and potent ghrelin/growth hormone secretagogue receptor (GHSR) agonist with high affinity for GHS-1a receptor (Ki value is 0.42 ± 0.063 nM). Relamorelin(BIM28131, RM131) is also a centrally permeable pentapeptide analog that can increase growth hormone levels and accelerate gastric emptying, and has the potential to study cachexia.

Mifentidine (DA 4577) is an orally available H2 receptor antagonist for the study of gastric emptying and experimental gastric and duodenal ulcers.

Cisapride (R 51619) is a serotonin type 4 (5-HT4) receptor agonists are potent prokinetic agents that act on serotonin receptors in the intestine and promote intestinal peristalsis, increase gastric emptying and decrease esophageal reflux.

Methyl syringate (Syringic Acid Methyl Ester) has a unique inhibitory activity toward aflatoxin production with a different mode of action from that of gallic acid. Methyl syringate from K. pictus is a specific and selective activator of hTRPA1, can regulate food intake and gastric emptying through a TRPA1-mediated pathway and, by extension, can contribute to weight suppression.

AZD7687 is a potent and selective DGAT1 inhibitor with an IC50 value of 80 nM (hDGAT1). IC50 value: 80 nM [1] Target: DGAT1 in vitro: Plasma AZD7687 exposure was measured repeatedly. AZD7687 markedly reduced postprandial TAG excursion with a steep concent

Semaglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist. This compound mimics GLP-1 to lower blood glucose levels and stimulates the growth of pancreatic β-cells responsible for insulin production and release. Additionally, Semaglutide inhibits the production of glucagon, a hormone that enhances glycogenolysis [the release of liver-stored carbohydrates] and gluconeogenesis [the synthesis of new glucose]. By reducing appetite and slowing gastric emptying, it also helps decrease food intake and aids in reducing body fat.

GLP-1R modulator-1 (Compound 384) is a potent and orally active selective agonist of the glucagon-like peptide-1 receptor (GLP-1R). It activates G protein-coupled signaling, leading to increased intracellular cAMP levels, enhanced insulin secretion, delayed gastric emptying, and reduced appetite. GLP-1R modulator-1 holds potential for research in type 2 diabetes, obesity, and non-alcoholic steatohepatitis (NASH).

GLP-1R agonist 32 (Compound 111) is an orally active and potent GLP-1R agonist with an EC50 value of 0.017 nM. It stimulates the production of cyclic adenosine monophosphate (cAMP) by activating GLP-1R, which enhances insulin secretion, suppresses glucagon release, and delays gastric emptying to regulate blood glucose levels. GLP-1R agonist 32 shows potential for research in type 2 diabetes, obesity, and related metabolic disorders.

GLP-1R agonist 34 (Compound 1) is an orally active small molecule agonist of the glucagon-like peptide-1 receptor (GLP-1R). It enhances insulin secretion, suppresses glucagon release, and slows gastric emptying, thereby effectively reducing blood glucose levels. GLP-1R agonist 34 holds potential for research into metabolic disorders such as type 2 diabetes, obesity, and non-alcoholic steatohepatitis (NASH).

Cinitapride (Blaston) is a gastroprokinetic agent. It slows the actions of the muscles to reduce the symptoms of conditions such as acid reflux, delayed gastric emptying, and ulcer dyspepsia. Cinitapride acts as an antagonist of the 5-HT2 receptors and as an agonist of the 5-HT1 and 5-HT4 receptors.

Acotiamide is an orally active, selective, and reversible acetylcholinesterase (AChE) inhibitor with an IC50 of 1.79 μM. It is a gastroprokinetic agent that enhances gastric contractility and accelerates delayed gastric emptying, with potential for research in functional dyspepsia involving gastric motility dysfunction and intestinal inflammatory [1] [2] [3].

HMR-1426 is gastric emptying inhibitor. HMR1426 shows an anorectic potential in rats and decreased body weight and fat mass. This was achieved solely by reducing food intake without influencing overall energy expenditure or behavior.

Dazopride fumarate is a peristaltic used to enhance gastric emptying and block emesis.

Obestatin is a 23 amino acid peptide hormone with a conserved C-terminal glycine residue and amidation site that is formed by cleavage of the ghrelin and obestatin prepropeptide.1It binds to the orphan receptor GPR39 (Kd= 1 nM) and stimulates cAMP production in CHO and HEK293 cells overexpressing human GPR39. Obestatin inhibits contraction of isolated mouse jejunum muscle strips induced by ghrelin .In vivo, obestatin (12.5-1,000 nmol/kg) suppresses food intake in a time- and dose-dependent manner and reduces body weight gain and gastric emptying in mice. Obestatin (0.22 g per animal) also reduces food intake and glucose response without affecting plasma insulin responses in fasted high-fat diet fed mice.2 1.Zhang, J.V., Ren, P.C., Avsian-Kretchmer, O., et al.Obestatin, a peptide encoded by the ghrelin gene, opposes ghrelin's effects on food intakeScience310(5750)996-999(2005) 2.Subasinghage, A.P., Green, B.D., Flatt, P.R., et al.Metabolic and structural properties of human obestatin {1-23} and two fragment peptidesPeptides31(9)1697-1705(2010)

Urocortin II is a neuropeptide hormone and member of the corticotropin-releasing factor (CRF) family which includes mammalian CRF , urocortin , urocortin III , frog sauvagine, and piscine urotensin I.1 Mouse urocortin II shares 34 and 42% sequence homology with rat CRF and urocortin . It is expressed in mouse paraventricular, supraoptic, and arcuate nuclei of the hypothalamus, the locus coeruleus, and in motor nuclei of the brainstem and spinal ventral horn. Urocortin II selectively binds to CRF1 over CRF2 receptors (Kis = 0.66 and >100 nM, respectively) and induces cAMP production in CHO cells expressing CRF2 (EC50 = 0.14 nM). In vivo, urocortin II suppresses nighttime food intake by 35% in rats when administered intracerebroventricularly at a dose of 1 μg. Urocortin II (0.1 and 0.5 μg, i.c.v) stimulates fecal pellet output, increases distal colonic transit, and inhibits gastric emptying in mice.2References1. Reyes, T.M., Lewis, K., Perrin, M.H., et al. Urocortin II: A member of the corticotropin-releasing factor (CRF) neuropeptide family that is selectively bound by type 2 CRF receptors. Proc. Natl. Acad. Sci. U.S.A. 98(5), 2843-2848 (2001).2. Martinez, V., Wang, L., Million, M., et al. Urocortins and the regulation of gastrointestinal motor function and visceral pain. Peptides 25(10), 1733-1744 (2004). Urocortin II is a neuropeptide hormone and member of the corticotropin-releasing factor (CRF) family which includes mammalian CRF , urocortin , urocortin III , frog sauvagine, and piscine urotensin I.1 Mouse urocortin II shares 34 and 42% sequence homology with rat CRF and urocortin . It is expressed in mouse paraventricular, supraoptic, and arcuate nuclei of the hypothalamus, the locus coeruleus, and in motor nuclei of the brainstem and spinal ventral horn. Urocortin II selectively binds to CRF1 over CRF2 receptors (Kis = 0.66 and >100 nM, respectively) and induces cAMP production in CHO cells expressing CRF2 (EC50 = 0.14 nM). In vivo, urocortin II suppresses nighttime food intake by 35% in rats when administered intracerebroventricularly at a dose of 1 μg. Urocortin II (0.1 and 0.5 μg, i.c.v) stimulates fecal pellet output, increases distal colonic transit, and inhibits gastric emptying in mice.2 References1. Reyes, T.M., Lewis, K., Perrin, M.H., et al. Urocortin II: A member of the corticotropin-releasing factor (CRF) neuropeptide family that is selectively bound by type 2 CRF receptors. Proc. Natl. Acad. Sci. U.S.A. 98(5), 2843-2848 (2001).2. Martinez, V., Wang, L., Million, M., et al. Urocortins and the regulation of gastrointestinal motor function and visceral pain. Peptides 25(10), 1733-1744 (2004).

Relamorelin (RM-131) acetate is a pentapeptide ghrelin analog that acts as a selective agonist for the ghrelin/growth hormone secretagogue receptor (GHSR). It exhibits a high affinity for the GHS-1a receptor, with a Ki value of 0.42 nM. Notably, Relamorelin acetate can cross the blood-brain barrier and target the central nervous system. This compound effectively increases growth hormone levels and promotes faster gastric emptying. Due to these properties, Relamorelin acetate holds promise for its potential applications in research related to cachexia, gastroparesis, and gastric/intestinal dysmobility disorders [4] [5].

Escin Ib inhibits gastric emptying, at least in part, mediated by capsaicin-sensitive sensory nerves, to stimulate the synthesis and/or release of dopamine, to act through central dopamine2 receptor, which in turn causes the release of PGs.

1. Corydaline (Corydalin), an isoquinoline alkaloid, is one of the major active constituents in a new prokinetic botanical agent. 2. Corydaline promotes gastric emptying and small intestinal transit and facilitates gastric accommodation. 3. Corydaline exhibits the anti-acetylcholinesterase, antiallergic, and antinociceptive activities. 4. Corydaline has potent inhibition of CYP2C19 and CYP2C9.

Acotiamide hydrochloride is a selective, orally active, reversible acetylcholine ester (AChE) inhibitor (IC50: 1.79 μM) that increases gastric contractility, accelerates delayed gastric emptying, and can be used to study functional dyspepsia and intestinal inflammation in gastric motility disorders.

Ciclotropium (free base) is quaternary ammonium compound with anticholinergic and parasympatholytic activity. Oral Cyclotropium bromide inhibited fasting and meal-stimulated colonic motility significantly without causing adverse side effects. After cyclotropium bromide, there was a significant correlation between antral contraction amplitude and gastric emptying.

ADL 08-0011 is an active metabolite of the μ-opioid receptor antagonist alvimopan. It is produced from alvimopan via amide hydrolysis by gut microbiota. ADL 08-0011 is a μ-opioid receptor antagonist (Ki = 0.25 nM). It is selective for μ-opioid receptors over κ- and δ-opioid receptors (Kis = 15.8 and 31.6 nM, respectively). ADL 08-0011 inhibits endomorphin 1-induced inhibition of electrically induced contraction of isolated guinea pig ileum (pA2 = 9.4). In vivo, ADL 08-0011 (0.03-1 mg/kg) reverses loperamide-induced delayed gastric emptying in a rat model of castor oil-induced diarrhea.

Relamorelin (RM-131) TFA, a pentapeptide ghrelin analog, is a potent and selective agonist for the ghrelin/growth hormone secretagogue receptor (GHSR), exhibiting a K_i of 0.42 nM for the GHS-1a receptor. This compound can cross the blood-brain barrier and effectively increases growth hormone levels while promoting faster gastric emptying, showing significant research potential for conditions such as cachexia, gastroparesis, and disorders related to gastric/intestinal motility [1] [2] [3] [4] [5].