Objective: To compare changing features of hemorheological, TXB2 and 6-keto-PGF1 alpha in plasma in three kinds of model rats with cerebral ischemia.
Materials and Methods: 128 adult male Sprague-Dawley rats were randomly divided into four groups: a middle cerebral artery occlusion with intraluminal thread group (MCAO-group), a bilateral common carotid artery ligation group (BCCA-group), a unilateral common carotid artery ligation group (UCCA-group) and a normal control group (NC-group). Blood for hemorheological testing of all rats was taken from abdominal aorta 24h following cerebral ischemia and hemorheological index was determined. Plasma contents of TXB2 and 6-keto-PGF1 alpha were detected by radio-immunity.
Results: The whole blood viscosity value, plasma viscosity value, and hematocrit were higher in MCAO-group among three model groups, followed by BCCA-group and UCCA-group. The deformity index of RBC in MCAO-group was significantly lower than that in normal-group. There were significant differences for plasma contents of TXB2 and 6-keto-PGF1 alpha among the three model groups and the normal group. There were significant differences for plasma level of 6-Keto-PGF1a, TXB2 between MCAO-group and the normal group, but no difference among the three model groups(p>0.05).
Conclusion: MCAO was the greatest in contribute to changes of hemorheology and plasma contents of TXB2, 6-keto-PGF1 alpha among three rat models with cerebral ischemia.
