Ex vivo release of eicosanoids after aneurysmal subarachnoid hemorrhage: a preliminary experience in humans.

Abstract:

:Authors addressed the question whether the byosynthesis and the release of specific eicosanoids may occur in human brain cortex, and if the qualitative pattern of arachidonic acid metabolism is similar to that observed in experimental SAH. Human brain samples from 18 patients operated on for anterior communicating artery aneurysm (5 unruptured aneurysms considered as control cases, 7 patients operated on between Days 1 and 4 after SAH and 6 patients operated on between Days 10 and 14) were studied for the ex vivo release of 4 selected eicosanoids (Prostaglandin D2, E2, 6-keto-PGF1a and Leukotriene C4). Levels of arachidonate metabolites were determined by radioimmunoassay technique. PGD2 release is significantly lower in cases operated on delayed phase if compared to both control cases (p less than 0.05) and patients operated on in the acute phase, while there is no significant difference between the release of PGD2 in control cases and patients operated on in the acute phase. Release of 6-keto-PGF1a is significantly higher in patients operated on in a delayed phase (p less than 0.03 vs patients operated on in the acute phase and p less than 0.05 versus control cases). The release of LTC4 is significantly enhanced (p less than 0.05) in cases operated on in the acute phase if compared with unruptured aneurysms. The release of PGE2 is significantly enhanced in patients operated on in the acute phase (p less than 0.05) if compared to patients with unruptured aneurysm.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Acta Neurol Scand

authors

Gaetani P,Marzatico F,Rodriguez y Baena R

doi

10.1111/j.1600-0404.1992.tb05063.x

subject

Has Abstract

pub_date

1992-08-01 00:00:00

pages

184-9

issue

2

eissn

0001-6314

issn

1600-0404

journal_volume

86

pub_type

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