Objective To establish a HPLC method for determination of theobromine in Compound Theophylline and Ephedrine Tablet. Method HPLC method was adopted on Kromasil C18 column (250 mm? 4.6 mm, 5 ?m), and temperature was set at 45 ℃. The mobile phase consisted of 0.05 mol/L KH2PO4- Methanol-Triethanolamine (77∶23∶0.2), with flow rate of 0.8 mL/min. The UV detection wavelength was set at 215 nm. Results The calibration curves of theobromine was linear in the range of 0.3 094～0.722 ?g (r=0.999 96), ant the average recovery was 100.49% (n=9) with RSD=1.1%. Conclusion This method is simple, rapid, sensitive and accurate, and can be used for determination of theobromine in Compound Theophylline and Ephedrine Tablet.

Objective To establish a quantitative method for Astraloside in Xingnao Zaizao Capsules by HPLC-ELSD. Methods HPLC-ELSD separation was achieved on Phenomenex Gemini C18 column (250 mm?4.60 mm, 5 ?m) and mobile phase consisted of acetonitrile-water (36∶64). The flow rate was 1.0 mL/min, drift tube temperature was 105 ℃, and gas flow rate was 2.7 L/min. Results The calibration curve was linear in the range of 0.486～2.43 ?g (r=0.999 7). The average recovery rate was 100.5% (n=6), RSD was 0.3%. Conclusion The method is rapid, accurate and reliable, and the method can be used as the quality standard for Xingnao Zaizao Capsules.

Objective To investigate the effect of cardiopulmonary bypass (CPB)on platelet inhibition rate(INHAA) and Aspirin resistance (AR) after coronary artery bypass grafting (CABG)surgery.Methods A total of 114 patients undergoing CABG surgery were divided into two groups:on-pump group(n=54)and off-pump group(n=60).Aspirin treatment(100 mg/d)was paused 7 days before surgery and continued 6 hours after surgery.INHAA was detected and calculated by using thrombelastography(TEG)at 6 hours after taking the last dose of aspirin before surgery(T0),12 hours (T1),5 days(T2),10 days (T3) and 15 days (T4) after surgery respectively.The incidence of AR was calculated.Results There was no significant difference in the overall INHAA between the two groups of on vs.off-pump(F =0.336,P =0.563),while the differences of INHAA index at each time point was statistically significant between two groups of on vs.off-pump(F =95.519,P =0.000).There was an interaction effect of timing and grouping(F =15.500,P =0.000).In comparison of INHAA between the two groups of on vs.off-pump at each time point,INHAA was higher in on-pump group than in off-pump group at T1 (P＜0.05),while INHAAbecame lower in on-pump group than in off-pump group at T2 (P＜0.05),and there was no statistical difference in INHAAbetween the two groups at T3 and T4 (P ＞0.05).In the on-pump group,the total difference of INHAA at different time points was significant (P＜0.05),and the INHAA was lower at T2 than at T1,T3,T4 (P＜0.05).In the off-pump group,the total difference of INHAA between different time points was significant(P＜0.05),and the INHAA was lower at T1 than at T2,T3,T4 (P＜0.05).In comparison of AR incidence after CABG surgery between two groups of on vs.off-pump at each time point,the incidence of AR was lower in on-pump group than in off-pump group at T1 (P ＜ 0.05),while there were no statistical significance between two groups of on vs.off-pump at T2,T3 and T4 (P＞0.05).In comparison of AR incidence after CABG surgery between two groups of on vs.off-pump at each time point,the incidence of AR was lower in on-pump group than in off-pump group at T1 (P ＜0.05),while there were no statistical significance between two groups of on vs.off-pump at T2,T3 and T4 (P ＞ 0.05).Conclusions The increase of platelet inhibition rate and aspirin resistance occurs in early period after CABG surgery.The platelet inhibition rate is higher and aspirin resistance rate is lower in on-pump group than in off-pump group at 12 h after surgery,and the platelet inhibition rate is lower at 5 days after CABG surgery in on-pump group than in off-pump group.CPB has little effect on the platelet inhibition rate and on the incidence of AR after 5 days of CABG surgery.

Objective To Provide basic information for the development of traditional Chinese medicine in the region by collating medicinal plant resources in Southern Sichuan Economic Zone.Methods The list was formed in Southern Sichuan Economic Zone by collecting and verifying Medicinal Plant Resources in 28 Counties(Districts)of the Southern Sichuan Economic Zone.The species composition,family structure,life type,threated degree of the medicine plants resources,the medicinal parts of key medicinal plants included,main cultivated medicinal herbs in the pharmacopoeia were statistically analysed for searching for the diversity of medicinal plant resources.Results The medicinal plant resources included 201 families,979 genera,2555 species.Herbaceous medicinal plants accounted for the largest proportion in both species and quantity.There are 270 species listed in the Chinese pharmacopoeia and 72 threatened and protected species among the medicinal plant resources.Conclusion The diversity of medicinal plant resources in the South Sichuan Economic Zone is prominent,and it can be reasonably developed,utilized,and protected.It is suggested to formulate effective protection measures for wild medicinal plant resources based on regional environmental characteristics,and rationally and sustainably develop and utilize high-quality medicinal plant resources with local characteristics.

Objective Investigate the types and reserves of key Chinese medicinal materials in Sichuan Province,and provide scientific basis for the sustainable utilization of traditional Chinese medicine resources in Sichuan Province.Methods Using a combination of field sample survey,market visit survey,and cultivation visit survey,we investigated the varieties and reserves of key Chinese medicinal materials in 183 county-level administrative regions in Sichuan Province.Results Sichuan Province has included 358 key varieties in the 2020 edition of the Chinese Pharmacopoeia,including 133 key medicinal materials under market investigation and 225 key medicinal materials under field investigation.The investigation discovered 325 key plant medicinal materials,14 key animal medicinal materials,14 key mineral medicinal materials,and 5 key fungal medicinal materials.We have completed a survey on the quantity and weight of 134 key Chinese medicinal materials,and calculated the reserve information of 134 key medicinal materials through the National Traditional Chinese Medicine Resource Census Database System.Conclusion Sichuan Province has abundant types of key traditional Chinese medicine resources,accounting for 51.3%of the total number of key varieties in the country.The resource reserves are large,exceeding 20 million tons,but some varieties of resources are severely damaged and urgently need to be protected.

Objective To compare the changes of the Chinese Materia Medica resources(CMMR)in Sichuan based on the data of the 3rd Chinese Materia Medica Resource Inventory(CMMRI,1983-1986)and the 4th CMMRI(2011-2022).Methods Using new techniques,after field investigation,collection and identification of the specimens of the animals,plants and minerals.The data of the CMMR in Sichuan found in the 4th CMMRI were analysed and compared with the data of 3rd CMMRI.Results ①9055 species of CMMR were found in Sichuan during the 4th CMMRI,including 8272 species of medicinal plants,745 species of medicinal animals and 38 species of medicinal minerals.Compared with the 3rd CMMRI,the number of CMMR found in Sichuan have greatly increased.The number of medicinal plants increased 5018 species,the number of medicinal animals increased 637 species and the number of medicinal minerals increased 5 species,too.②The medicinal plants is the main part of the CMMR,and the higher plants(7774 species)has the absolute advantage of the CMMR.The top 20 families which have plenty of plant species include Compositae,Rosaceae,Leguminosae,Ranunculaceae,etc.③ Based on the data of the CMMR of the 183 counties in Sichuan,the reserves of 235 species of wild CMMR in Sichuan is about 36.72 million ton.There were 49 CMMR which have reserves beyond 100 thousand tons,such as Arisaematis rhizoma,Epimedii folium,Cimicifugae rhizoma,Acori tatarinowii rhizoma,Gentianae macrophyllae radix,Polygoni multiflori radix etc.④In 2021,there were 215 species of CMMR cultivated in Sichuan,the main species were Aurantii fructus,Chuanxiong rhizoma,Polygonati rhizome,Salviae miltiorrhizae radix et rhizome.The planting area was 8.17 million and the production was 1.26 million ton.⑤All 183 countries were found CMMR,the number of the species of CMMR in 30 countries exceeded 800,including 16 countries which had more than 1000 kinds of CMMR,such as Emeishan,Hongya,Muli etc.The total types of the CMMR(up 118.31%),the reserves of the wild CMMR(up 119 times)and the number of the counties(up 3 times)which had plenty of CMMR,showed a marked increase over the 3rd CMMRI.8 new species were found in the the 4th CMMRI,such as Codonopsis atriplicifolia,Tongoloa tagongensis,Allium xinlongense,etc.Conclusion The species,the reserves of the CMMR and the resource rich countries in Sichuan are the top 3 in China and Sichuan is worthy of the title of"Hometown of Traditional Chinese Medicine".The compositions and types of the family,genus and species of the CMMR in Sichuan have significantly increased.The basic information of the CMR in Sichuan was clearly found out during the 4th CMMRI,and beneficial for the sustainable development and utilization of the CMMR in Sichuan.