Abstract:
AIM:Recent studies revealed that pharmacological modulation of NAE-hydrolyzing acid amidase (NAAA) can be achieved with PEA oxazoline (PEA-OXA). Hence, the aim of the present work was to thoroughly evaluate the anti-inflammatory and neuroprotective effects of PEA-OXA in an experimental model of vascular dementia (VaD) induced by bilateral carotid arteries occlusion. At 24 h after VaD induction, animals were orally administered with 10 mg/kg of PEA-OXA daily for 15 days. RESULTS:Brain tissues were handled for histological, immunohistochemical, western blot, and immunofluorescence analysis. PEA-OXA treatment evidently reduced the histological alterations and neuronal death induced by VaD and additionally improved behavioral deficits. Further, PEA-OXA decreased GFAP and Iba-1, markers of astrocytes, and microglia activation, as well as increased MAP-2, a marker of neuron development. Moreover, PEA-OXA reduced oxidative stress, modulated Nrf2-mediated antioxidant response, and inhibited the apoptotic process. INNOVATION:Some drugs may demonstrate their healing potential by regulating neuroinflammation, rather than by their habitually attributed actions only. Palmitoylethanolamide (PEA) is a prototype ALIAmide, well-known for its analgesic, anti-inflammatory, and neuroprotective properties. The inhibition of PEA degradation by targeting NAAA, its catabolic enzyme, is a different approach for treating neuroinflammation. This research offers new insight into the mechanism of PEA-OXA-induced neuroprotection. CONCLUSION:Thus, the modulation of intracellular NAAA by PEA-OXA could offer a novel means of controlling neuroinflammatory conditions associated with VaD.
journal_name
Neurobiol Disjournal_title
Neurobiology of diseaseauthors
Impellizzeri D,Siracusa R,Cordaro M,Crupi R,Peritore AF,Gugliandolo E,D'Amico R,Petrosino S,Evangelista M,Di Paola R,Cuzzocrea Sdoi
10.1016/j.nbd.2019.01.007subject
Has Abstractpub_date
2019-05-01 00:00:00pages
77-91eissn
0969-9961issn
1095-953Xpii
S0969-9961(18)30538-2journal_volume
125pub_type
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