ABSTRACT
[Objective] To investigate the effects of Naoyi'an (NYA) on the expression of ICAM-1 in the brain of rats with experimental intracerebral hemorrhage.[Methods] The rats model of intracerebral hemorrhage was prepared by type Ⅶ collagenase injected into globus pallidus under stereotaxic apparatus.Then,the expression of ICAM-1 with or without intervention with NYA was determined in the brain of these animals respectively by in situ hybridization and western blot technique.[Results] Among the modeling animals,the expression of ICAM-1 was increased after the operation.In contrast,the expression of ICAM-1 was significantly down-regulated in the rats treated by NYA(P
ABSTRACT
Objective To establish a hydrogen peroxide-impaired model of rat cerebral microvascular endothelial cells in vitro, and observe the protective effect of serum containing Naoyian. Method Rat cerebral microvascular endothelial cells were treated with six concentrations of hydrogen peroxide at four time points. The optimum injury condition of hydrogen peroxide was determined by MTT chromatometry. Then the cultured cells pretreated with serum containing Naoyian and pyrrolidine dithiocarbamate(PDTC) were interfered with hydrogen peroxide in suitable concentration and time, and OD of the treated cells was measured by MTT chromatometry. Results The cultured cells were injured obviously by hydrogen peroxide in 0 125mmol/L for 30min. The OD of the cells pretreated with 5% serum containing Naoyian and 50?mol/L PDTC were significantly higher than that of the cells without pretreatment (P