BACKGROUND:Core decompression and tantalum rod implantation after core decompression are common methods to repair early and middle stages of necrosis of femoral head, can effectively control and even reverse the progress of necrosis of the femoral head. Comparison of mechanical support and curative effect of femoral head after operation deserves further investigation. OBJECTIVE:To explore the effect of core decompression on mechanical pulp femoral head support by using the finite element analysis and the advantages of tantalum implant treatment in the repair of avascular necrosis of the femoral head. METHODS: The right femur of healthy adults was chosen as the research object, and CT scanning was conducted to get the images of cross-sections. The images were then inputted into computer to get contour of femur and rebuild three-dimensional model. Distal end of femur was completely fixed, the angle of the top of femoral head and the femoral shaft was 25°, and 570 N pressure on the femoral head was applied according to the three-dimensional space distribution of femur force under physiological state. Three-dimensional finite element models were calculated to get the colapse values in different necrotic areas of the femoral head before and after different repair methods. RESULTS AND CONCLUSION:After core decompression, colapse values were apparently increased, especialy in the weight-bearing area. With increased range of necrosis, colapse values also increased. After core decompression, colapse values decreased obviously after porous tantalum rod implantation. Although core decompression could remove dead bone, decompression itself further reduced the mechanical properties of the femoral head and changed the original femoral head support. On the basis of core decompression, porous tantalum rod provided safe and effective mechanical support for femoral head and subchondral bone plate, could effectively prevent colapse and provide conditions for the restoration of bone tissue.

Objective: To observe the effect of 70% ethanol extract from Huanglian Jiedu Decoction on expression of S180 tumor cell apoptosis factor in MDR model mice, and to research the molecule biology base fot directing clinic. Methods: simulate Clinic PFC project was simulated, the mice model of multi-drug resistance of S180 tumour cell was established. 70% Ethanol extract from Huanglian Jiedu Decoction were given for 10 days. The flow cytometry was used to observe Fas, Trail, CD54.,et al. Resluts: 70% Ethanol extract from Huanglian Jiedu Decoction can increase expression rate of Fas, Trail and improve apoptosis of S180 cell, at the same time it can decrease expression of CD54.Conclusions: 70% Ethanol extract from Huanglian Jiedu Decoction improve high level expression of apoptosis factor, and it maybe one of pass reverse multi-drug resistance of tumour.

Objective: To establish a RP-HPLC method for the determination of icariin in Bushenning Capsules. Methods: The sample was prepared by water extraction-purfication through polyamide column. The determination was carried out on C 18 ODS column with mobile phase of acetonirile-water (23∶77), and detection wavelength at 270nm according to the external standard method.Results: The icariin sample size showed a good linear relationship at the range of 0.12-1.91ug and correlation coefficient was 0.9999. The average recovery of the added sample was 99.21%(n=5) and RSD was 1.79%. The RSD in a duplicate test was 2.18%.Conclusion: The method is simple, accurate, reproducibe and can be used for content determination of icariin of icariin of Bushenning Capsules.

Objective: To observe the safety and efifcacy of excimer laser coronary atherectomy (ELCA) for treating the patients with coronary chronic total occlusion (CTO). Methods: A total of 3 coronary CTO patients treated by ELCA in our hospital from 2015-01 to 2016-11 were analyzed. The patients received guide steel wire gone through occlusion segment under the guidance of offside coronary angiography; drug-eluting stent implantation was conducted after ELCA treatment. The operative success rate with complication was observed and the occurrence of MACE was followed-up. Results: The device performing and interventional therapy were succeed in all 3 patients. No coronary dissection, perforation, slow relfow and thrombosis were occurred during the operation; no angina, myocardial infarction, target vessel revascularization and death were observed by follow-up study. Conclusion: Application of ELCA combining drug-eluting stent implantation was safe and effective for treating the patients with coronary CTO.

Objective: To establish a new method and limit of detection for Flavonoids content in Fructus Crataegi. Methods: Flavonoids in Fructus Crataegi in 10 regions was determined by colorimetry. Results: Content of Flavonoids in samples selected from 10 regions ranged 0.84%～3.62%. Content of hyperoside by colorimetry is correlative to that by HPLC. Conclusion: The method is simple, quick and reproducible. Flavonoid content in Fructus Crataegi was designed no less than 1.0%, extraction must be performed under 60?C and dried to constant weight for 6 hours.

Object To look for the proprietary constituent and the constituents with blood lipid regulating effect from the dried fruit of Crataegus pinnatifida Bge var major N E Br Methods Various column chromatographic techniques were employed for isolation and purification of the constituents UV, IR, EI MS, FAB MS, 1HNMR, 13 CNMR, HMBC, HMQC and 13 CGATE were used to identify the structure of the isolated constituents Results Six compounds were isolated from the fruit of C pinnatifida They were identified as 5, 7, 4′ trihydroxy flavone 8 C ? L rhamnopyranosyl (1→2) ? D glucopyranoside, i e vitexin rhamnoside (Ⅰ), hyperoside (Ⅱ), citric acid (Ⅲ), vitexin (Ⅳ), quercetin (Ⅴ), ursolic acid (Ⅵ) Conclusion Compound Ⅰ is a proprietary constituent in the fruit of C pinnalifida, which was obtained from this plant for the first time Compound Ⅱ is a main constituent with blood lipid reducing effect in flavonoids

Objective:To observe the therapeutic effects of Tongyushu capsules on dysmenorrhea. Methods:With the intravenous injection of oxytocin in rats, the influence of Tongyushu capsules on rat uterine smooth muscle was observed in vivo. With the intraper-itoneal injection of oxytocin to replicate the mouse model of dysmenorrhea, the effect of Tongyushu capsules on dysmenorrhea was ob-served. Using acetic acid writhing method, the effect of relieving pain Tongyushu capsules in mice was observed. By the method of ear swelling induced by xylene in mice, the anti-inflammatory effect of Tongyushu capsules was observed. By the method of ice water bath and subcutaneous injection of adrenaline, the influence of Tongyushu capsules on the acute blood stasis model in rats was observed. Results:Compared with those of the model group, the contraction of uterine smooth muscle of the groups treated with Tongyushu cap-sules at various dosage was decreased obviously (P<0. 05), the number of body torsion reaction induced by oxytocin and acetic acid in mice was obviously decreased in 15 min (P<0. 05), the degree of ear swelling in mice treated with Tongyushu capsules was signifi-cantly reduced (P<0. 05), and the whole blood viscosity, plasma viscosity, hematokrit, erythrocyte sedimentation rate and erythro-cyte electrophoresis time were significantly decreased (P<0. 05). Conclusion:Tongyushu capsules have obvious effects of the inhibi-tion of excessive contraction of uterine smooth muscle, dysmenorrhea alleviation, anti-inflammation and relieving pain, which show good therapeutic effect on dysmenorrhea.

Objective To investigate the effect and safety of early intervention and delayed intervention therapy on elderly patients and younger patients with non-ST segment elevation acute coronary syndrome. Methods The patients with non-ST segment elevation acute coronary syndrome were randomly divided into early intervention group (coronary angiography taken within 24 hours after grouping) and delayed intervention group ( coronary angiography taken after 36 hours after grouping). The primary endpoint was a composite endpoint of death, myocardial infarction and stroke during 180 days follow-up. Results A total of 815 patients were enrolled, including 198 elderly patients aged 75 years and above, and 617 younger patients aged below 75 years. The elderly patients had a greater incidence of the primary endpoint than that of younger patients ( P = 0. 00). The primary endpoint of early intervention group were obviously lower than that of delayed intervention group of younger patients ( P = 0. 01 ). There was no significant difference in primary endpoint incidence of early intervention group and delayed intervention group of the elderly patients (P =0. 39). Conclusions The elderly patients with non-ST segment elevation acute coronary syndrome who underwent intervention had greater incidence of death and myocardial infarction. Early intervention reduced the rate of myocardial infarction for the younger patients. There was no significant difference in primary endpoint incidence between early intervention and delayed intervention among elderly patients.

Objective To compare the long-term effect of three different drng-eluting stents (DES) for in-stent restenotic lesions. Methods From April 2004 to June 2006, 390 consecutive patients undergoing DES implantation including 187 Cypher (group C), 89 Taxus (group T) and 114 Firebird (group F) with resulting in-stent restenotic lesions were studied. A mean of 2 year clinical and 7-month angiographic follow-up was carried out. Results Baseline characteristics indicated that there were more unstable angina cases in T group and less left main disease and more triple vessel disease cases in F group. A mean of 2-year follow-up results showed no difference of major adverse cardiac events (MACE) rate among the three groups (23.0% vs 22.5% vs 13.2% , P = 0. 081) and no difference of cardiac death, non-fatal myocardial infarction (MI) and target vessel revascularization rate(1.1% vs 4. 5% vs 1.8% , P = 0. 210, 5.9% vs 2. 2% vs 2. 6% ,P =0. 226 and 2. 9% vs 2. 2% vs 0. 9% , P =0. 509). There was no difference of total stent thrombosis or its components among the three groups (total: 4. 8% vs 3.4% vs 2. 6%, P=0. 605, early: 0. 5% vs 0 vs 0. 9% ,P =0. 560, late: 1.6% vs 1.1% vs 0. 9% ,P =0. 849 and very late: 2. 9% vs 2. 2% vs 0. 9% , P =0. 509) according to Academic Research Consortium (ARC) standard definitions (definite + probable). 7-month angiographic follow-up indicated that there was a lower trend of both in-stent and in-segment trestenosis rate in C and F groups (17.9% vs 29. 4% vs 13.6% ,P = 0. 214 and 21.8% vs 35.3% vs 15.9%, P =0. 132) and in-stent and in-segment late loss was significantly smaller inCand F groups [(0.31±0.12) mm vs(0.75±0.24) mm vs(0.31±0.13) mm, P=0.000 and (0.33±0.18)mm vs (0.61±0.23)mm vs (0.31±0.14)mm, P=0.001]. Conclusions Results from this 2-year follow-up, single-center study showed comparable effectiveness and safety of Cypher, Taxus and Firebird DES for in-stent restnotic lesions, but Cypher and Firebird had better effect in reducing restenosis.