Objective To investigate the evaluation method of processing pieces' colour and quantificationally analyse the relactionship between the pieces' colour and the internal quality. Methods Taking different processing techniques on Rhizoma Alismatis as research objects,using a camera and Adobe Photoshop software to acquire the elementary information of processing pieces' colour and determine the contents of the active principle in Rhizoma Alismatis by HPLC. The active principle in Rhizoma Alismatis and the colour of processing pieces are analyzed quantificationally by SPSS 13.0 statistical software and data mining software Clementine 8.0. Results The method for acquiring and handling colour information of processing pieces in Rhizoma Alismatis could be used to quantificationally analyze the correlation of the colour of processing pieces. There is a significant correlation between processing pieces' colour difference and the internal quality. Conclusion The colour difference of processing pieces can be one of target for the quality assessment. The method can be popularized to other precessing pieces control of techniques.

Aim To investigate the effect of oleoylethanolamide (OEA),a new PPAR? agonist,on focal cerebral ischemia in mice.Methods Transient focal cerebral ischemia in mice was induced by middle cerebral artery occlusion for 1.5 h. OEA was orally administered either with multiple doses (10,20,40 mg?kg-1) once a day for 3 days before ischemia or single dose (40 mg?kg-1) at 0.5 h before or 1 h before ischemic,the same time of reperfusion or 1 h after reperfusion respectively.Neurological deficit score,infarct volume and brain edema were determined.Results Pretreatment with multiple doses (20,40 mg?kg-1) of OEA before ischemia or single dose (40 mg?kg-1) of OEA at 0.5 h before ischemia or at the same time of reperfusion significantly attenuated neurological deficit score,decreased infarct volume and alleviated brain edema,and the treatment at the time of reperfusion had the most marked effect.Conclusion Oleoylethano-lamide has a dose-and time-dependent neuroprotective effect on the injury in the acute phase of transient focal cerebral ischemia in mice,with effective doses of 20 mg?kg-1 and 40 mg?kg-1 and the optimal therapeutic time point of the same time of reperfusion.

purpose To investigate the protective effect and character of dl-praeruptorin A(Pd-Ia)on focal cerebral ischemia in mice.Methods Transient focal cerebral ischemia in mice WaS induced by middle cerebral artery occlusion for 1.5 h.Pd-Ia was administered intraperitoneally either with multiple doses(1,5 and 10ms/ks)at 0.5 h before ischemia or single dose(5 ms/kg)at 0.5 h and 1 h before ischemic,the same time of ischemia,the same time of reperfusion,or 0.5 h and 1 h after reperfusion respectively.Neurological deficit score,infarct volume,brain edema,the activities of SOD and the contents of MDA were determined.Results Pretreatment with multiple doses(5 and 10 ms/ks)of Pd-Ia at 0.5 h before ischemia or single dose(5 mg/kg)of Pd-Ia at 0.5 h before ischemia,at the same time of ischemic,at the same time of reperfusion and 0.5 h after reperfusion significantly attenuated neurological deficit score,decreased infarct volume and alleviated brain edema,and the treatment at the time of reperfusion had the most marked effect.Pd-Ia(5 or 10 ms/ks)can significantly enhance the activities of SOD and lower the contents MDA.Conclusion dl-praeruptorin A has a neuroprotective effect on the injury in the acute phase of transient focal cerebral ischemia in mice,with optimal doses of 5 ms/ks and the optimal therapeutic time point of the same time of reperfusion.