1.Therapeutic effect analysis of three internal fixation methods in the treatment of intertrochanteric femur fracture
Orthopedic Journal of China 2006;0(13):-
[Objective] To discuss the therapeutic effect of different methods in the treatment of intertrochanteric femur fracture. [Methods]Totally 118 middle aged or old patients with intertrochanteric femur fracture were fixed with dynamic hip screw (DHS), Gamma nail or PFNA.[Results]Totally 112 cases were followed up, and the average time was 16 months, in those 45 patients were fixed with DHS: 29 were excellent, 11 cases were good, and 5 were poor, and the excellent to good rate was 88.9%; 36 patients were treated with Gamma nail, and the excellent, good, poor results were 28, 2, 1, respectively, and the excellent to good rate was 96.8%; 36 patients were fixed with PFNA, and the excellent, good, poor results were 29, 6, 1, respectively. The differences were significant (P=0.02, analyzed by Logistic regression with SPSS software). The excellent and good superiority of Gamma nail and PFNA were 5.1552 and 2.3726 times compared to DHS, and there was significant differences between the groups.[Conclusion]Surgical treatment of intertrochanteric femur fracture can improve the functional recovery and reduce the complication incidence, and PFNA fixing method can shorten the operative time, reduce the bleeding and the therapeutic effect is reliable, and suitable for old patients combined with osteoporosis.
2.Discussion on Life Education of Traditional Chinese Medicine Based on Traditional Philosophy of Life
Chinese Medical Ethics 2017;30(2):191-194
The humanistic thinking of life philosophy of traditional Chinese medicine (TCM) observed inlife activities is different from western theories and methods,which is more about life experience and feeling and rich in practical significance.The life philosophy of TCM is also different from traditional Chinese culture.The intuitive feeling of life is one of the main characteristics of life philosophy of TCM.Students of TCM soak in traditional Chinese medicine culture and are influenced by the thinking of real life caused by the care of realbody in TCM.Chinese medicine education should fully mobilize the tacit knowledge of life education in TCM,play excellent tradition of Chinese traditional life philosophy,and cultivate the life moral quality in students of TCM.
3.Performance verification and evaluation of Stago STA-R automatic blood coagulation analyzer
International Journal of Laboratory Medicine 2017;38(5):654-656
Objective To conduct the performance verification of the Stago STA-R automatic blood coagulation analysis system once every year to evaluate the analysis system for ensuring its accuracy and reliability .Methods According to the related docu-ments of the Clinical and Laboratory Standards Institute (CLSI) ,5 items of prothrombin time (PT ) ,activated partial clotting en-zyme live time (APTT) ,thrombin time (TT) ,fibrinogen (Fib) and antithrombin Ⅲ (ATⅢ) were selected to conduct the verifica-tion and preliminary evaluation on the accuracy ,imprecision ,carry-over rate ,linearity range and reference interval of the instrument analysis system .Results The relative bias(SE% ) of accuracy in each item was less than 5% .The intra-batch and inter-batch im-precisions (CV) were less than 3% and 5% respectively .The carry-over rates were within 4% .The linearity of Fib and AT Ⅲ was very well ,r2 were 0 .9980 and 0 .9979 respectively .Validated reference interval was consistent with quotative reference range . Conclusion The Stago STA-R automatic blood coagulation analysis system has good analytical performance ,can provide accurate and reliable test results for clinical doctors .
4.The effects and interaction of ketamine and magnesium on NMDA receptors expressed in xenopus oocytes
Hongtao LIU ; Weihua LIU ; Junke WANG
Chinese Journal of Anesthesiology 2001;21(5):295-298
Objective It has been shown that ketamine and magnesium used in combination provide more effective analgesia than either drug alone. The purpose of this study was to investigate the effects and interaction of the two drugs on recombinantly expressed NMDA receptors. Methods Xenopus oocytes expressing NR1/NR2A or NR1/NR2B glutamate receptors were stimulated with glutamate/glycine and studied at a holding potential of -70mV using two electrode voltage clamp. The effects of magnesium and s ( + )-ketamine alone or in combination on NMDA signaling were determined. Results Magnesium and s( + )-ketamine alone inhibited NMDA receptors non-competitively. IC50s of magnesium were (4.2 ± 1.2)×10-4mol/L and (6.3 ± 2.4) × 10-4 mol/L on NR1/NR2A and NR1/NR2B, while IC50s of s( + )-ketamine on NR1/NR2A and NR1/NR2B were (4.1 ± 2.5) × 10-6 mol/L and (3.0 ± 0.3 ) × 10-6 mol/Lrespectively. Magnesium and s( + )-ketamine used in combination decreased IC50s more than 90% at both receptors. Isobolographic analysis demonstrated superadditive interactions. Conclusions s( + )-ketarnine and magnesium inhibit responses of recombinantly expressed NMDA recptors non-competitively, and the combinations of the two drugs produces a synergistic effect.
5.Anti-sliding plating for Letenneur type Ⅰ Hoffa fractures
Weihua LI ; Yabo LIU ; Manyi WANG
Chinese Journal of Orthopaedic Trauma 2009;11(9):850-853
Objective To explore the anti-sliding plating for Hoffa fractures by comparing the me-chanical properties of anti-sliding plates and cancellous bone screws. Methods Twenty cases of the same type of Hoffa fracture in the model femur were randomly divided into 4 even groups. Group A used 2 antegrade cancellous bone screws; Group B used 2 retrograde cancellous bone screws forwards; Group C used anti-sliding plate and locking screw fixation; Group D used anti-sliding plate and cancellous bone screw fixation. All the samples were subjected to the cycle fatigue and the maximum failure load tests. Results The fatigue test revealed no significant difference in the mean maximum displacements at the 10, 100, 1000, 10 000 cycles between the 4 groups. In the maximum failure load test, there were significant differences between Group A [(1224±72) N] and Groups C and D [(2183±227) N and (2124±235) N], as well as between Groups B [(1405±235) N] and Groups C and D; there was no significant difference between Group A and Group B, neither between Group C and Group D, Conclusions In the initial period after secure fixation for Hoffa fractures, anti-sliding plates and cancellous bone screws can all provide satisfactory mechanical stability and strength. But anti-sliding plating is recommended for cases of long healing expected, patients with great body mass index, and patients with poor compliance.
6.Superselective Bronchial Artery Embolization for Hemoptysis with Coaxial Microcatheter System
Ping LIU ; Yougeng KANG ; Weihua ZENG
Journal of Chinese Physician 2001;0(07):-
Objective To evaluate feasibility, effectiveness , safety, and complications of superselective bronchial artery embolization with coaxial microcatheter system for hemoptysis. Methods 32 times of superselective bronchial artery embolization were performed for 29 cases with hemoptysis resulted from a variety of causes, age grade from 35 to 71(mean 54) year old. The causes of hemoptysis included bronchiectasis (9 cases), tuberculosis (12 cases), and pulmonary carcinoma (8 cases). All studies were performed with standard percutaneous transfemoral catheterization. Results The success rate of superselective catheterization was 96 9% (32/33). Hemoptysis control was achieved in 96 9% (31/32), with complete control rate of 65.6% (21/32) and partial control rate of 31.3% (10 /32),inefficacy case:only one.One patient with bronchiectasis, 6 patients with pulmonary carcinoma and 3 patients with chronic fibrosis tuberculosis were included in the partial control group. Rebleeding occurred in 7 patients (4 patients with pulmonary carcinoma and 3 patients with chronic fibrosis tuberculosis) during 2 months to 32 months followed-up period. No severe complications occurred in the procedure. Conclusions Superselective bronchial artery embolization for hemoptysis with coaxial microcatheter is a safe, effective way to control hemoptysis, has excellent long term efficacy, and without severe complications.
7.Effect of Semen Cassiae extracts on expression of lipogenesis genes in hyperlipidemia model mice
Shumin LIU ; Chao SUN ; Weihua XIE
Chinese Traditional and Herbal Drugs 1994;0(04):-
Objective To study the effects of Semen Cassiae extract on lipid metabolism of hyperlipidemia model mice.Methods In this experiment,mice were sc injected with two different concentration of Semen Cassiae extract,and sacrificed at 1,2,and 4 h.The blood samples were withdrawn from the eye vein.The plasma biochemical indexes were detected by using the kit,and real time PCR was used to analyze the expression of adipogenesis genes with time series.Results For hyperlipidemia model mice treated with Semen Cassiae extract serum total cholesterol(TC),triglyeride(TG),and low density lipoprotein cholesterol(LDL-C) could be decreased significantly(P
8.Effects of berberine on fibronectin and p38MAPK signal pathway in rat glomerular mesangial cells cultured under high glucose condition
Zhaoyuan QIN ; Weihua LIU ; Heqing HUANG
Chinese Pharmacological Bulletin 2003;0(09):-
Aim To investigate the effects of berberine on extracellular matrix in rat glomerular mesangial cells cultured under high glucose and its possible mechanism.Methods Six groups were divided according to the different experimental conditions:① Normal glucose group (NG);② Mannitol group (Mannitol);③ High glucose group (HG);④ SB203580 treatment group (HG+SB203580);⑤ Berberine low dosagegroup (HG+BBR 30 ?mol?L-1);⑥ Berberine high dosage group (HG+BBR 90 ?mol?L-1). The phospho-p38MAPK,phospho-cAMP response element binding protein (CREB) and fibronectin were detected by Western blot analysis. Results Berberine obviously decreased protein expression of fibronectin compared with high glucose group. Phospho-p38MAPK and phospho-CREB level was significantly lowered compared with that of high glucose group. Conclusion Berberine can inhibit extracellular matrix accumulation including fibronectin via p38MAPK signal pathway in treatment of diabetic nephropathy.
9.Hoffa fracture: the CT classification system
Weihua LI ; Yabo LIU ; Manyi WANG
Chinese Journal of Orthopaedic Trauma 2013;15(9):737-741
Objective To introduce a new CT classification system we designed for Hoffa fractures and compare the interrater reliability between the CT and X-ray classification systems.Methods A total of 20 isolated Hoffa fractures from January 2008 to December 2011 were randomly selected for the present analysis of their imaging data (anteroposterior and lateral X-ray films of the knee joint and three-dimensional CT reconstruction of the femoral condyle).At the same time,a total of 20 independent observers (clinicians with junior,intermediate and senior professional qualifications) were selected for classification of the Hoffa fractures in the same manner respectively according to the Letenneur's X-ray system and our self-designed CT system.We used Kappa statistics to evaluate the interrater reliability among the clinicians between the 2 classification systems for Hoffa fractures.Results According to the CT classification of the 20 Hoffa fractures by the 20 clinicians,type Ⅰ,Ⅱ and Ⅲ fractures accounted for 66.0%,30.5% and 3.5% respectively.In type Ⅰ fractures,type Ⅰb involving zone b accounted for the most (50.0%),next by type Ⅰc(31.0%) and type Ⅰa (19.0%).In type Ⅱ comminuted fractures,fracture fragments were mostly seen in zone b.The overall incidence of fractures involving zone b by CT classification was 67%.According to the X-ray classification,type Ⅰ,Ⅱ,Ⅲ and Ⅳ fractures accounted for 31.4%,14.3%,28.0% and 26.3%,respectively.The interrater reliability for CT classification agreement (Kappa =0.681) among clinicians was higher than that for X-ray agreement (Kappa =0.261).Conclusion For Hoffa fractures,communicated ones in particular,our CT classification system may be better than the X-ray classification system.