Abstract:
:Focal ischemia was induced in the fronto-parietal region of rat brain, by injection of Rose Bengal, followed by light activation. Focal ischemia was accompanied by formation of PGD(2) peaking 60-90 min post irradiation and declining thereafter. Increased Cycloxygenase-2 (COX-2) expression was also observed. Control ischemic rats showed distinct morphological alterations with necrosis of neurons, glial cells and blood vessels, surrounded by a halo with pyknotic cells with cytoplasm swelling and vacuolization. Compound SC58236, a selective COX-2 inhibitor, dose-dependently prevented, ischemia-induced eicosanoid formation (area under the curve (AUC) of controls: 3.11 +/- 0.87; AUC of 20 mg/kg SC58236: 0.39 +/- 0.24), and caused significant reduction of damaged area (30.7 and 18.9% at SC58236 20 and 6.6 mg/kg), suggesting that selective inhibitors of COX-2 are neuroprotective.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Govoni S,Masoero E,Favalli L,Rozza A,Scelsi R,Viappiani S,Buccellati C,Sala A,Folco Gdoi
10.1016/s0304-3940(01)01675-5keywords:
subject
Has Abstractpub_date
2001-05-04 00:00:00pages
91-4issue
2eissn
0304-3940issn
1872-7972pii
S0304394001016755journal_volume
303pub_type
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