Coronary-artery bypass grafting(CABG)has been a standard treatment for unprotected left main coronary artery disease.Advancement in percutaneous coronary intervention(PCI)makes PCI as effective as CABG in selected patients.In this study,we assess the optimal revascularization strategy for patients with unprotected left main coronary artery disease.

Objective:On the basis of synthetic antigens on minoxidil ,we prepared its polyclonal antibody and established a ELISA method to detect minoxidil .Methods:We synthesized minoxidil artificial antigen with glutaraldehyde and identified by UV scan -ning.We had established a detection of minoxidil competition ELISA .Results: The UV scan showed that the minoxidil successfully coupled to a carrier protein.The conjugate of minoxidil-BSA was used to immunize BALB/c mice.And the produced antiserum showed high titer of 1:12 800 in the indirect ELISA.Its ELISA curve equation:y=-0.082 3 x+0.938 ( R2 =0.9811 ) , minoxidil mass concentration and the absorbance in 0.001-10 μg/ml showed a good linearity .Conclusion: This method has been successfully preparing minoxidil artificial antigen and polyclonal antibodies and established ELISA detection method for minoxidil ,which provides a basis for the practical application of minoxidil immunoassay method .

OBJECTIVE　To establish a method for the determination of paeoniflorin in Fufang Biejia Ruangan tablet.METHODS　The tablets were extracted with 50% ethanol.The sample solution was applied on a silica gel G-CMC plate and developed with chloroform-methanol-glacial acetic acid (85∶13∶2) and was sprayed with sulfuric acid containing 5% vanillin.The separated spot was determined by scanning with CS-930 at λS=575 nm,λR=700 nm.RESULTS　The average recovery was 97.60% and the RSD was 3.67%.CONCLUSION　The results showed that this method is sensitive,specific,accurate and reproducible.

Objective: To establish the identificational method of Compound Biejiaruangan Tablets. Methods: The microscopic identification and TLC were used. Results: Carapax Trionycis, Radix Paeoniae Rubra, Radix Notoginseng, Placenta Hominis, and Cordyceps in Compound Biejiaruangan Tablets can be distinguished by microscopic identification and Cordyceps, Fructus Forsythiae and Radix Notoginseng can be identified by TLC, respectively. Conclusion: This method is simple, rapid and with a good reappearance, and available for quality control of the preparation.