A-20832 inhibits resolvase-promoted site-specific recombination postsynaptically at strand cleavage. It does not inhibit resolvase binding to res, as measured by filter binding, or synapse formation. DNase I analysis in the presence of A-20832 indicates t
(-)-L-threo-PDMP is an enhancer of ganglioside biosynthesis. The (-)-L-threo-PDMP (1S,2S) isomer is the active stimulatory component of DL-threo-PDMP in contrast to (+)-D-threo-PDMP , which is an inhibitor of glucosylceramide synthetase. (-)-L-threo-PDMP upregulates GM3, GD3, and GQ1b synthase levels, which are glycosyltransferases involved in ganglioside biosynthesis, and increases ganglioside levels in cells. It increases neurite outgrowth and synapse formation in vitro and improves retention of a long-term memory learned prior to forebrain ischemia in rats when administered following ischemia at a dose of 40 mg/kg per day.
Q134R, a neuroprotective hydroxyquinoline derivative that suppresses nuclear factor of activated T cell (NFAT) signaling. Q134R can across blood-brain barrier. Q134R has the potential for Alzheimer’s disease (AD) and aging-related disorders research[1]. Q134R (1-10 μM) suppresses NFAT signaling, without inhibiting calcineurin activity. Q134R partially inhibits NFAT activity in primary rat astrocytes, but does not prevent calcineurin-mediated dephosphorylation of a non-NFAT target, either in vivo, or in vitro[1]. Q134R (4 mg kg; orally gavage; twice per day; for 7 days) treatment improves cognitive function in rodent models of AD‐like pathology[1]. [1]. Pradoldej Sompol, et al. Q134R: Small chemical compound with NFAT inhibitory properties improves behavioral performance and synapse function in mouse models of amyloid pathology. Aging Cell. 2021 Jul;20(7):e13416.