BACKGROUND: Naomaitong injection is a Chinese herbal compound preparation for treatment of ischemic cerebral vascular disease, acting on resisting calcium overload, regulating the imbalance between thromboxane (TXA) and prostaglandin (PG) and blocking lipid peroxidation mediated by free radical so as to protect cerebrum.OBJECTIVE: To observe the effects of naomaitong injection on water and Ca2+ contents, activity of superoxide dismutase (SOD), levels of lipid peroxide (LPO), 6-keto-PG lα and TXA, and compare it with danshen injection.DESIGN: Randomized control experiment was designed.SETTING: Experimental Center of Chengdu University of Traditional Chinese Medicine.MATERIALS: The experiment was performed in Experimental Center of Chengdu University of Traditional Chinese Medicine from October 1997 to February 1998, in which, 72 healthy male Wistar rats were employed, rangroup: Abdominal injection was done with physiological saline 1.67 mL/kg,group): Abdominal injection was done with compound danshen injection groups (naomaitong No.1, No.2 and No.3 groups): abdominal injection was done with naomaitong injection 3.33, 1.67, 0.84 mL/kg successively,twice/day.METHODS: Totally 48 hours after medication, under anesthetized state,the rats in every group were sacrificed to collect brain tissue. The two hemispheres were cut into two pieces from the middle. One of them was prepared into brain tissue homogenate at low temperature. Radioimmunologic analysis method was used to measure 6-keto-PG 1o and TXA B2 levels so as to evaluate the balance between PG and TXA systems. The modified pyorgallol autoxidation and thiobarbituric acid (TBA) colorimetric method were applied to determine SOD activity and LPO level respectively so as to evaluate lipid peroxidation mediated by free radical. The dry and wet weights of other piece were weighed immediately on electronic scale and the water content of brain tissue was calculated to evaluate brain edema. Atomic absorption spectrophotometry (AAS) was used to determine Ca2+content in brain tissue so as to evaluate calcium overload.tissue of rats in every group.content in brain tissue of rats in every group: That in model group was higher remarkably than normal group [(82.27±1.32)%, (77.24±1.36)%;(267.47±15.69), (37.55±13.23) μg/g, P ＜ 0.01]. The water contents in 4 treatment groups were decreased of various degrees. The effect in No.1 group was the strongest [(78.74±1.41)%] and that in danshen group was the weakest [(81.45±1.52)%]. Ca2+ content in danshen group was decreased of various degrees, indicating dose-effect dependence, but, which was near to ty and LPO level in brain tissue of rats in every group: SOD activity in model group was lower remarkably than normal group [(86.18 ±3.17),(131.86±4.67) μkat/g, P ＜ 0.01]. After treated with naomaitong of 3 dosages, that was all improved, indicating dose-effect dependence (P ＜ 0.01). The effect of No.1 group was the strongest [(119.02±4.00) μkat/g],SOD activity in danshen group was near to model group (P ＞ 0.05). LPO level in model group was higher than normal group [(52.46 ±3.25),(32.29±2.23) μmol/L, P ＜ 0.01]. LPO level of every treatment group was lower significantly than model group and the therapeutic effects of No. 1, 2,3 groups were superior to danshen group [(35.68±2.86), (41.54±2.47),1α and TXA B2 in brain tissue of rats in every group: Content of 6-ketoPG 1α in brain tissue of model group was lower remarkably than normal group (P ＜ 0.01). That was improved in all of 4 treatment groups, in which,the therapeutic effects of No.1, 2, 3 groups were superior to danshen group [(43.84±2.98), (35.01±4.32), (29.97±3.81), (22.89±3.64) ng/g, P ＜ 0.01].TXA B2 content in brain tissue of model group was higher remarkably than normal group (P ＜ 0.01). After treatment, the 4 treatment groups lowed significantly TXA B2 content in brain tissue compared with model group,indicating dose difference. That in danshen group was lower than No. 1, 2,3 groups [(40.58±1.34), (32.85±1.43), (34.31±1.39), (37.27±1.52) ng/g, P ＜0.01].CONCLUSION: Naomaitong injection alleviates brain edema, resists calcium ion, regulates imbalance between TXA and PG systems, improves activity of anti-oxidase and is against injury of free radical so as to protect the structure of brain tissue and achieve therapeutic effects, indicating a certain dose-effect relationship. The effect of naomaitong injection is superior to that of compound danshen injection.

Objective To investigate the therapeutic mechanism of Chinese medicine of Yi Xin Le oral liquid (YXL) on insomnia. Methods Mice spontaneous activities,mice sleep time induced by sodium pentobarbital in the threshold dose and under the threshold dose and mice convulsion induced by strychnine nitrate were observed to evaluate the sedative, hypnotic and anticonvulsive actions of YXL. Results YXL could restrain the spontaneous movement in mice,had a synergistic action with sodium pentobarbital on mice sleep,and could counteract the convulsive attack induced by strychnine nitrate in a dose-dependent manner. Conclusion YXL has obvious sedative, hypnotic and anticonvulsive actions and this will supply evidence for its clinical usage.

[Objective] To observe the effect of Jiedu Lifei Oral Liquid (JLOL, mainly composed of Flos Lonicerae,Fructus Forsythiae, Radix Scutellariae, Bulbus Frityllariae, etc. ) on the immune function in mice with viral pniumonia.[Methods] Sixty mice were randomized into 5 groups: normal group (A), model group (B), virazole group (C), small-dose JLOL group (D) and large-dose JLOL group (E). Mouse models of viral pheumonia were induced by infection ofinfluenza virus FM1. Effects of JLOL on serum levels of interleukin-1 (IL-1), interleukin-2 (IL-2), tumor necrosisfactor ? (TNF-?) and interferon ? (IFN-?) were observed. [Results] Compared with normal group, serum levels of IL-1 and (IFN-? were decreased and TNF-? increased (P 0.05 ) in model group.After treatment wth JLOL, serum levels of IL-2 and IFN-? were increased , TNF-? decreased (P 0.05). [ Conclusion] JLOL can increase the immune function by increasing the serumlevels of IL2 and IFN-? and can reduce the immune impairment by inhibiting the over production of TNF-?.