deprivation/reperfusion

Safinamide mesylate (EMD 1195686 mesylate) , a mesylate salt of Safinamide, can reversibly and specifically inhibit MAO-B (IC50: 98 nM), has 5918-fold selectivity against MAO-A.

Anti-MI/R injury agent 1 (compound 18), derived from Panaxatriol, represents an orally administered, potent agent against myocardial ischemia/reperfusion (MI/R) injury. It improves cell viability in cardiomyocytes subjected to oxygen-glucose deprivation and reperfusion (OGD/R)-induced injury. Furthermore, this compound significantly reduces myocardial infarction size, diminishes levels of circulating cardiac troponin I (cTnI), and mitigates cardiac tissue damage in rat models [1].

Tat-NTS peptide, a cell-penetrating compound, comprises the HIV-1 Tat protein transduction domain fused with a 10-amino acid sequence (residues 228-237) from the repeat III domain of annexin A1, serving as a nuclear translocation signal (NTS). This peptide hinders the interaction between annexin A1 and importin β, obstructing annexin A1's nuclear entry in primary mouse hippocampal neurons. Tat-NTS effectively prevents apoptosis triggered by glucose-oxygen deprivation and reperfusion in these neurons. When administered in vivo at a dosage of 10 mg/kg, it significantly reduces infarct size, minimizes neuronal apoptosis, and improves navigation performance in the Morris water maze test for mice subjected to ischemia-reperfusion injury via middle cerebral artery occlusion (MCAO).

KUS121 is a valosin-containing protein (VCP) modulator that inhibits VCP ATPase activity (IC50= 330 nM).1It inhibits cell death, ATP depletion, and upregulation of C/EBP-homologous protein (CHOP) induced by tunicamycin, an inducer of ER stress, in HeLa cells when used at concentrations of 20, 50, and 50 μM, respectively. KUS121 (100 μM) inhibits ATP depletion and cell death induced by oxygen-glucose deprivation (OGD) in rat primary cortical neurons in anin vitromodel of cerebral ischemia.2It reduces infarction volume and increases the latency to fall in an accelerating rotarod test in a mouse model of focal cerebral ischemia induced by transient distal middle cerebral artery occlusion (MCAO) when administered at a dose of 100 mg/kg immediately following occlusion and again at 50 mg/kg following reperfusion. KUS121 (50 mg/kg) inhibits thinning of the retinal outer nuclear layer and preserves visual function in an rd10 mouse model of retinitis pigmentosa.1 1.Ikeda, H.O., Sasaoka, N., Koike, M., et al.Novel VCP modulators mitigate major pathologies of rd10, a mouse model of retinitis pigmentosaSci. Rep.45970(2014) 2.Kinoshita, H., Maki, T., Yasuda, K., et al.KUS121, a valosin-containing protein modulator, attenuates ischemic stroke via preventing ATP depletionSci. Rep.9(1)11519(2019)

TAT-NEP1-40 acetate, a potential therapeutic for axonal regeneration and functional recovery post-stroke, safeguards PC12 cells from oxygen and glucose deprivation (OGD) and encourages neurite outgrowth. This compound also affords cerebral protection against ischemia/reperfusion injury by hindering neuronal apoptosis and can be effectively administered into rat brains [1] [2].