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| NEUE FORSCHUNGSERGEBNISSE | |
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Effect of virgin olive oil plus acetylsalicylic acid on brain slices damage after
hypoxia-reoxygenation in rats with type 1-like diabetes mellitus.
Aspirin is the most widely used drug for the secondary prevention of ischemic stroke in patients suffering from diabetes mellitus. Moreover virgin olive oil (VOO) administration exerts a neuroprotective effect in healthy rat brain slices. The aim of the present study was to determine the possible influence of VOO administration to streptozotocin-diabetic rats (DR) on the neuroprotective effect of aspirin in rat brain. DR were treated during 3 months with saline, aspirin (2mg/kg/day p.o.), VOO (0.5mL/kg/day p.o.) or its association; a control normoglycemic group was treated with saline. Brain slices were subjected to oxygen-glucose deprivation before a reoxygenation period. All the treatments significantly reduced lactate dehydrogenase LDH efflux after reoxygenation (-54.1% for aspirin, -51.3% for VOO and -72.9% for aspirin plus VOO). Lipid peroxides in brain slices were also reduced after the treatment with aspirin (-17.90%), VOO (-37.3%) and aspirin plus VOO (-49.2%). Production of nitric oxide after reoxygenation was inhibited by all the treatments (-46.5% for ASA, -48.2% for VOO and -75.8% for ASA plus VOO). The activity of the inducible isoform (iNOS) was inhibited by the three types of treatment (-31.8% for ASA, -29.1% for VOO and -56.0% for ASA plus VOO). The main conclusion of our study is that daily oral administration of VOO to diabetic rats may be a natural way to increase the neuroprotective effect of aspirin in diabetic animals. |
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Autoren:
Cruz JP
; Rio SD
; Arrebola MM
; Lopez-Villodres JA
; Jebrouni N
; Gonzalez-Correa JA
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Quelle:
Neurosci Lett. 2010 Jan 15.
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| Literaturrecherche: U.S.National Library of Medicine's PubMed® | |
 
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