Propane-2-sulfonic acid octadec-9-enyl-amide, a novel peroxisome proliferator-activated receptors α and γ dual agonist, enhances hippocampal neurogenesis and neuroplasticity in rats with cerebral ischaemia.

NEUROREPORT(2019)

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Abstract
Our previous studies showed that propane-2-sulfonic acid octadec-9-enyl-amide (N15), a novel peroxisome proliferator-activated receptors alpha and gamma (PPAR alpha/gamma) dual agonist, protected against ischaemia-induced acute brain damage in mice and improved cognitive ability in the chronic phase of ischaemic stroke. It is well known that hippocampal neurogenesis is closely related to cognitive function. In the present study, we investigated the effect of N15 on hippocampal neurogenesis and neuroplasticity in a middle cerebral artery occlusion (MCAO) rat model. The middle cerebral artery of rats was blocked for 2 hours. Oral administration of 100 mg/kg N15 or vehicle was given once daily for days 2-13 after MCAO. The newly mature neurons were detected by staining. The expressions of synapse-related proteins were observed by qRT-PCR or western blotting. We found that N15-treated rats showed improved survival post-MCAO. In addition, N15 treatment markedly increased the newly mature neurons and enhanced the expression levels of growth-associated protein-43, synaptophysin, brain-derived neurotrophic factor and neurotrophin-3 in the hippocampus. Moreover, N15 promoted the activation of PPAR alpha and PPAR gamma on day 7 and 14 after cerebral ischaemia. These results reveal that N15 may promote neurogenesis and neuroplasticity in MCAO rats through the activation of the PPAR alpha/gamma dual signal pathway. Copyright (C) 2019 Wolters Kluwer Health, Inc. All rights reserved.
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5-bromo-20-deoxyuridine,ischaemic stroke,neurogenesis,propane-2-sulfonic acid octadec-9-enyl-amide
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