BACKGROUND:It is discovered that trace elements in Chinese patent medicine play an important role in pharmaceutical efficacy and structural analysis.A new topic has been formed gradually in a further research on pharmaceutical efficacy and effective components of Chinese patent medicine in the view of inorganic trace elements.The fuzzy classified study on the interrelationship between trace and constant elements of Chinese herbs and therapeutic effects is to discuss the trace-element action of drugs in the holistic aspect of trace element and research rather scientifically the holistic coordination among trace elements in Chinese herbs. OBJECTIVE:To determine the contents of 21 kinds of trace and constant elements in Chinese patent medicines in the treatment of cardio-cerebral vascular disease.To study with fuzzy classified method the interdependence between trace,constant elements of drugs and therapeutic effects so as to provide a new approach for the quality evaluation of Chinese patent medicine. DESIGN:Testified observed study based on various Chinese patent medicines. SETTING:Chemistry teaching-research room in a university and department of cardiology in a general hospital of a chemical industrial group corporation. MATERIALS:Twenty-one kinds of common Chinese patent medicines for the treatment of cardio-cerebral vascular diseases in clinic,namely di'ao xinxuekang capsule(DXK),xueshuan xinmaining capsule(XMN),shanhaidan capsule(SHD),buchang naoxintong capsule(NXT),linaoxin capsule(LNX),xinnaosu capsule(XNS),lixin wan(LXW), suxiao jiuxin wan (SJX), xin bao wan(XBW), yinxingye pian(YXY),fufang danshen pian(DSP), niuhuang jiangya wan(NHJY),naosaitong pian(NST),qiangli tianma duzhong wan(TDW),tongsaimai pian(TSM),tongmai ningxin infusion(TMNX), maitong capsule(MTC),fufang yinxing wan(YXW),da huoluo dan(DHL),guanxin suhe capsule(GXSH) and xiaoshuan tongluo capsule(XSTL). METHODS:Wet digestion was used to manage samples,atomic absorption spectrophotometric method(AAS) method was used to determine the contents of 10 kinds of trace and constant elements in 21 Chinese patent medicines,namely Na,Ca,Mg,K,Fe,Cr,Ni,Cu,Zn and Mn.Data range method was applied for the standardized management of statistical indexes of various element contents in relevant drugs,dotprod(U,V) method was used to measure correlation coefficient(r) among the classified objects so as to determine fuzzy matrixes in universe.
The interrelationship was analyzed between the contents of trace elements of various Chinese medicines and pharmaceutical efficacy.By the analysis of fuzzy matrixes in universe,it was to evaluate firmly on the efficacy similarity of various kinds of Chinese patent medicines with quantitative indexes. MAIN OUTCOME MEASURES:①Results of element contents;②Results of fuzzy cluster analysis on elements. RESULTS:The standardized management of statistical indexes was carried on the contents of Na,Ca,Mg,K,Fe,Cr,Ni,Cu,Zn and Mn in various drugs to determine correlation coefficient(r) among the classified objects so as to determine fuzzy matrixes in universe.When(r)=0.55,there were 9 kinds of drugs similar in cluster,namely xueshuan xinmaining capsule,buchang naoxintong capsule,lixin wan,xin bao wan,qiangli tianmai duzhong wan,tongsaimai pian,maitong capsule,da huoluo dan and xiaoshuan tongluo capsule.When(r)=0.65,there were 6 kinds of drugs similar in cluster,namely buchang naoxintong capsule,xin bao wan,qiangli tianmai duzhong wan,tongsaimai pian,maitong capsule and xiaoshuan tongluo capsule.When(r)=0.87,there were 2 kinds of drugs similar in cluster,namely buchang naoxintong capsule and xin bao wan. CONCLUSION:It is indicated in the research that the drugs are in rich of trace and constant elements.The larger the correlation coefficient of drugs is,the more similar the pharmaceutical efficacy is.It is discovered the close interrelationship of the trace and constant elements in drugs with their pharmaceutical efficacy.In this research,fuzzy cl