infarct

SCH79797 dihydrochloride is an effective and selective antagonist of protease activated receptor 1 (PAR1) with an IC50 of 70 nM and a Ki of 35 nM. SCH79797 dihydrochloride has antiproliferative and pro-apoptotic effects.

Astragaloside IV (AS-IV), an active component isolated from Astragalus membranaceus, suppresses the activation of ERK1 2 and JNK, and downregulates matrix metalloproteases (MMP)-2, (MMP)-9 in MDA-MB-231 breast cancer cells. Astragaloside IV is a bioactive saponin first isolated from the dried plant roots of the genus Astragalus, which is used in traditional Chinese medicine.1 It dose-dependently inhibits human adenovirus type 3 (HAdV-3) in A549 cells (IC50 = 23 μM; LC50 = 865 μM).It inhibits replication of HAdV-3 and decreases HAdV-3-induced apoptosis. It has diverse protective effects for the cardiovascular, immune, digestive, and nervous systems. In particular, it reduces myocardial infarct size in dogs when administered prior to coronary ligation and reduces reperfusion arrhythmias in isolated rat hearts.

Pinokalant (LOE-908) is a novel non-selective cation channel inhibitor.Pinokalant significantly reduces cortical infarct volume in in vivo experiments, improves the metabolic and electrophysiological status of the ischemic penumbra region, and reduces the size of the lesion on magnetic resonance images in the acute phase after middle cerebral artery occlusion in rats.Pinokalant is a potential SARS-CoV-2 protease inhibitor for the study of stroke.

Cinepazide maleate (MD-67350), a maleate salt form of cinepazide, is a vasodilator.

Pyrithioxin (Encefabol) is a neurodynamic compound, combined with a short period of hyperventilation (HV) was applied in cerebral infarct patients with Hemiplegia. Pyrithioxin is regarded as an encephalotropic or nootropic compound and is reported to act mainly by producing decisive improvements in cerebral metabolism.

NLRP3-IN-2 (5-Chloro-N-(p-sulfamoylphenethyl)-o-anisamide), an intermediate capable of synthesizing glibenclamide, exerts an inhibitory effect on the formation of NLRP3 inflammatory vesicles in cardiomyocytes, limiting infarct size after myocardial ischemia reperfusion in mice and has no effect on metabolism.

SSR69071 is a potent, orally active, and selective inhibitor of neutrophil elastase, displaying higher affinity for human elastase (Ki = 0.0168 nM) compared to rat (Ki = 3 nM), mouse (Ki = 1.8 nM), and rabbit (Ki = 58 nM) elastases [2]. It reduces myocardial infarct size following ischemia-reperfusion injury [1] and has potential for treating chronic obstructive pulmonary diseases, asthma, emphysema, cystic fibrosis, and various inflammatory diseases.

Dapansutrile is a potent, selective and orally active NLRP3 inflammasome inhibitor, with Anti-inflammatory and analgesic activity.

L-NIO dihydrochloride, a potent and non-selective NADPH-dependent nitric oxide synthase (NOS) inhibitor, consistently induces focal ischemic infarct in rats. It exhibits inhibitory constants (Kis) of 1.7, 3.9, and 3.9 μM for neuronal (nNOS), endothelial (eNOS), and inducible (iNOS) forms, respectively.

Annaosanchun (YC-6) is potentially for the treatment of acute ischemic stroke (AIS).

(9R)-RO7185876 (Compound example 16) is a γ-secretase inhibitor. It reduces the secretion of Αβ42. This compound can be employed in the research of Alzheimer's disease, cerebral amyloid angiopathy, hereditary cerebral hemorrhage with amyloidosis, multi-infarct dementia, senile dementia, or Down syndrome.

Neuroprotective agent 7 (Compound 13) is a brain-penetrant neuroprotective agent that significantly reduces the infarct area in MCAO rat models. It serves as a potent neuroprotective compound and is applicable for studies related to cerebral ischemia and similar conditions.

P7C3-A20, a derivative of P7C3, exhibits both proneurogenic and neuroprotective activities (brackets).

(±)14(15)-EET is a metabolite of arachidonic acid that is formed via epoxidation of arachidonic acid by cytochrome P450.[1],[2] It prevents increases in leukotriene B4, ICAM-1, and chemokine (C-C motif) ligand 1 (CCL2) induced by oxidized LDL in primary rat pulmonary artery endothelial cells (RPAECs) when used at a concentration of 1 μM.[3] (±)14(15)-EET induces dilation of preconstricted isolated canine coronary arterioles (EC50 = 0.2 pM).[4] It reduces myocardial infarct size as a percentage of the area at risk in a canine model of ischemia-reperfusion injury induced by left anterior descending coronary artery (LAD) occlusion when administered at a dose of 0.128 mg kg prior to occlusion or reperfusion.[5] Reference:[1]. Chacos, N., Falck, J.R., Wixtrom, C., et al. Novel epoxides formed during the liver cytochrome P-450 oxidation of arachidonic acid. Biochem. Biophys. Res. Commun. 104(3), 916-922 (1982).[2]. Oliw, E.H., Guengerich, F.P., and Oates, J.A. Oxygenation of arachidonic acid by hepatic monooxygenases. Isolation and metabolism of four epoxide intermediates. J. Biol. Chem. 257(7), 3771-3781 (1982).[3]. Jiang, J.-X., Zhang, S.-J., Xiong, Y.-K., et al. EETs attenuate ox-LDL-induced LTB4 production and activity by inhibiting p38 MAPK phosphorylation and 5-LO BLT1 receptor expression in rat pulmonary arterial endothelial cells. PLoS One 10(6), e0128278 (2015).[4]. Oltman, C.L., Weintraub, N.L., VanRollins, M., et al. Epoxyeicosatrienoic acids and dihydroxyeicosatrienoic acids are potent vasodilators in the canine coronary microcirculation. Circ. Res. 83(9), 932-939 (1998).[5]. Nithipatikom, K., Moore, J.M., Isbell, M.A., et al. Epoxyeicosatrienoic acids in cardioprotection: Ischemic versus reperfusion injury. Am. J. Physiol. Heart Circ. Physiol. 291(2), H537-H542 (2006).

N-Methyl-D-aspartate (NMDA) receptors are Ca2+ permeable ligand-gated channels of the central nervous system that are activated after binding of the co-agonists glutamate and glycine. CAY10608 is a propanolamine that potently, selectively, and non-competitively antagonizes the NR2B subunit of NMDA receptors (IC50 = 50 nM). It does not inhibit NR1, NR2A, NR2C, and NR2D subunits and has no significant effects on α-amino-3-hydroxy-5-methyl-4-isoxazolepropioinic acid (AMPA) or kainate receptors. CAY10608 is neuroprotective, since it prevents NMDA-triggered release of lactate dehydrogenase from cultured cortical neurons. Also, CAY10608, when administered intraperitoneally, reduces brain infarct volume resulting from transient ischemia via carotid artery occlusion.

1. Nicotiflorin (Kaempferol-3-O-Rutinoside) has potential therapeutic effects on cerebral ischemic illness. 2. Nicotiflorin has protective effects on reducing memory dysfunction, energy metabolism failure and oxidative stress in multi-infarct dementia model rats.

Moexipril-d5 intended for use as an internal standard for the quantification of moexipril by GC- or LC-MS. Moexipril is a prodrug form of the angiotensin converting enzyme (ACE) inhibitor moexiprilat. It is converted to moexiprilat in vivo by side chain ester hydrolysis. Moexipril inhibits ACE in a cell-free assay (IC50 = 2.7 µM for the rabbit enzyme). It also inhibits phosphodiesterase 4 (IC50s = 38, 160, and 230 µM for PDE4B2, PDE4A5 and PDE4D5, respectively). Moexipril (0.1-30 mg kg per day) reduces blood pressure in spontaneously hypertensive rats.1 It also reduces infarct volume in a rat model of focal cerebral ischemia when used at a concentration of 0.01 mg kg.

Nicorandil-d4 is intended for use as an internal standard for the quantification of nicorandil by GC- or LC-MS. Nicorandil is an activator of sulfonylurea receptor 2B (SUR2B) linked to ATP-sensitive potassium channel Kir6.2 (EC50 = ~10 µM) and a nitric oxide (NO) donor. It is selective for SUR2B Kir6.2 over the SUR2A Kir6.2 channel (EC50 = >500 µM). Nicorandil activates soluble guanylate cyclase in a cell-free assay and relaxes partially depolarized isolated bovine coronary artery strips (EC50 = 4.4 µM). It decreases mean blood pressure, coronary resistance, and heart rate, as well as increases coronary sinus outflow, in dogs when administered intravenously at a dose of 1 mg kg. Nicorandil increases survival and decreases infarct size in a rabbit model of myocardial ischemia-reperfusion injury induced by left coronary artery occlusion. Formulations containing nicorandil have been used in the treatment of angina pectoris.

PI3K Akt CREB activator 1 (AE-18) is a selective inducible nitric oxide synthase (iNOS) inhibitor that crosses the blood-brain barrier, reduces infarct size and restores blood supply deficits after ischemia-reperfusion in rats, and is used in studies of vascular dementia and Parkinson's disease.

MRS4719, a potent P2X4 receptor antagonist, exhibits a half-maximal inhibitory concentration (IC50) of 0.503 μM for the human P2X4 receptor. Demonstrating both neuroprotective and neuro-rehabilitative effects, it can decrease infarct volume and brain atrophy in an ischemic stroke model. Additionally, MRS4719 mitigates ATP-induced calcium influx in primary human monocyte-derived macrophages, making it a valuable tool for researching ischemic stroke.

PR-39 TFA, a natural peptide rich in proline and arginine with antibacterial properties, acts as a noncompetitive, reversible, and allosteric inhibitor of the proteasome. It specifically attaches to the α7 subunit of the proteasome, preventing the degradation of the NF-κB inhibitor IκBα through the ubiquitin-proteasome pathway. Additionally, PR-39 TFA promotes angiogenesis, suppresses inflammatory responses, and notably decreases myocardial infarct size in mice [1] [2].

Tat-HA-NR2B9, comprising an HIV-1 Tat transduction domain fragment, an influenza virus hemagglutinin (HA) epitope-tag, and the C-terminal 9 amino acids of NR2B (NR2B9c), has demonstrated efficacy in reducing infarct size and enhancing neurological function following ischemia-induced cerebral injury in rats [1].

Tat-Gap 19, a peptide inhibitor of connexin43 (Cx43) hemichannels, is derived from the HIV-1 Tat protein transduction domain fused with a nine-amino acid sequence from Cx43 residues 128-136. This compound, at a concentration of 10 µM, effectively suppresses glutamate-induced ATP release in primary rat hepatocytes, indicating inhibition of Cx43 hemichannel activity. Furthermore, Tat-Gap 19 demonstrates therapeutic potential by significantly reducing infarct volume in a mouse cerebral ischemia-reperfusion injury model following middle cerebral artery occlusion (MCAO) at a dosage of 25 mg/kg. Moreover, its intraperitoneal administration at 1 mg/kg per day ameliorates fibrosis and decreases the area of hepatic stellate cells, the precursors to myofibroblasts, expressing α-smooth muscle actin (α-SMA), in a model of thioacetamide-induced liver damage. Additionally, it enhances superoxide dismutase (SOD) activity in hepatic cells from the treated mice, indicating its antioxidative benefits.

Myelin oligodendrocyte glycoprotein (MOG) peptide, a truncated form of MOG located on the extracellular myelin sheath surface, interacts with antigen serotype HLA-DR2 to mitigate effects of ischemic stroke induced by middle cerebral artery occlusion (MCAO) in mice. In female mice, it notably reduces cortical and striatal infarct volumes, lessens sensorimotor deficits as observed in tube- and corner turn tests, enhances engagement with novel odors, and prolongs the duration of cage mate-directed vocalizations, without exhibiting similar outcomes in male mice.