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- W2462433304 abstract "Splanchnic artery occlusion (SAO) shock, induced by a transient occlusion of splanchnic arteries for 45 min, was performed in male rats, treated with vehicle or cloricromene, a coumarin derivative, 15 min before surgery. Survival rate, plasma levels of myocardial depressant factor (MDF), macrophage phagocytosis and killing of Candida albicans, and thromboxane B2 (TxB2) synthesis by peritoneal macrophages were evaluated. Of the SAO-shocked animals, 10% survived for 6 hr after the release of the occlusion of the splanchnic arteries, whereas none of the sham-shocked rats died. Peritoneal macrophages of shocked animals exhibited decreased phagocytosis (24.7 +/- 2.7%) and killing (8.0 +/- 2.1%) and increased TxB2 levels (3.23 +/- 0.27 ng/ml) with respect to those collected from sham-shocked animals (phagocytosis 48.8 +/- 3.0%; killing 16.5 +/- 2.4%; TxB2 0.30 +/- 0.18 ng/ml). MDF was also increased (114.3 +/- 21.5 U/ml) compared with sham-shocked animals (31.5 +/- 3.7 U/ml). Cloricromene, given intravenously (i.v.) at doses of 1, 2, and 4 mg/kg, significantly increased survival rate and lowered MDF in shocked rats. Lower doses (0.25 and 0.5 mg/kg/i.v.) were without effect. Doses that were able to reduce mortality partially reverted shock-induced macrophage impairment of phagocytosis, killing of C. albicans, and TxB2 synthesis. In addition, cloricromene (5, 10, and 25 microM) added in vitro to peritoneal macrophages, collected from shocked rats, significantly enhanced their phagocytic activity depressed by shock." @default.
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- W2462433304 date "1989-07-01" @default.
- W2462433304 modified "2023-09-23" @default.
- W2462433304 title "Cloricromene improves survival rate and peritoneal macrophage function in splanchnic artery occlusion shock in rats." @default.
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