1.Treatment of sympathetic cervical spondylosis
Orthopedic Journal of China 2006;0(11):-
According to the recent years’ review of international and domestic relating journals and collections, the conception, mechanism, and treatment of sympathetic cervical spondylosis are summarized.All authors have agreed that posterior cervical nerve syndrome proposed by Barre-Lieou and addressed in this paper, whose mechanism mainly is cervical vertebral degeneration stimulus, or oppression upon sympathetic nervous fiber, or spasm of vertebral artery, is generally treated by non-operative methods and cautious operative methods.The main cause of sympathetic cervical spondylosis is cervical vertebral instability, which stimulates sympathetic nervous fiber to make vertebral artery to convulse. And its treatment is mainly conservative treatment and supplementary operation. But it is usually subject to reoccurrence. Operative methods include cervical disk excision, cervical inter-body fusion and bone grafting and inner fixation, instable factor elimination. But eligible condition is relatively short.
2.Tendon tissue engineering and gene transfer
Orthopedic Journal of China 2006;0(12):-
Currently,bone marrow derived mescenchymal stem cells(MSCs) are the best available cell population for tendon tissue engineering.Recent adipose-derived MSCs show characteristics of multipotentital and may be used as functional cells for tendon tissue engineering.Nanofiber scaffolds can mimic the structure and function of extracellular matrix,and have advantages for tendon tissue engineering.A variety of gene transfer techniques can be used to maintain local concentrations of growth factor at tendon repair site.Although tremendous progress has been achieved in the field of tendon tissue engineering,many challenges remain and much work still needs to be done.
3.Research on heart function in pregnant women with sinus tachycardia evaluated with echocardiography
Lingyun FAN ; Yanru WANG ; Xiaoli FENG
Chinese Journal of Postgraduates of Medicine 2014;37(9):16-18
Objective To investigate the characteristic and clinical value of echocardiography in pregnant women with sinus tachycardia.Methods Thirty pregnant women with sinus tachycardia (experiment group) and 30 healthy pregnant women (control group) were selected.The echocardiography results and clinical data were compared between the 2 groups.Results There were no statistical differences in age,gestational age,blood pressure,weight between the 2 groups (P > 0.05).The heart rate in experiment group was significantly higher than that in control group [(123.20 ± 13.23) times/min vs.(86.17 ± 6.78) times/min],there was statistical difference (P < 0.01).The left ventricular posterior wall thickness and the rates of mitral regurgitation,tricuspid regurgitation,aortic regurgitation in experiment group were significantly higher than those in control group [(10.23 ± 1.30) mm vs.(8.79 ± 1.90) mm,63.33% (19/30) vs.16.67% (5/30),66.67%(20/30) vs.30.00%(9/30),26.67%(8/30) vs.6.67%(2/30)],the left ventricular posterior wall motion amplitude was significantly lower than that in control group [(8.07 ± 1.00) mm vs.(9.26 ± 1.71) mm],there were statistical differences (P < 0.01 or < 0.05).There were statistical differences in the indexes of left ventricular systolic function and diastolic function between the 2 groups (P <0.01 or <0.05).Conclusion The anatomical indexes and function indexes of echocardiography in pregnant women with sinus tachycardia are used to change,and the echocardiography in time can provide the basis of treatment.
4.Analysis of operative complications in total hip arthroplasty
Lin JIA ; Xuehai LIU ; Yanru FENG
Orthopedic Journal of China 2006;0(12):-
[Objective]To analyse the operative complications in total hip arthroplasty.[Method]Sixty-two patients (62 hips) undergone total hip arthroplasty from March 1998 to November2009,were grouped according to the different causes of the operative complications.[Result]Based on the analysis of all cases,it was found that the most common causes resulting in the failure of the surgery were surgical technichque and fracture,anesthesia,osteoporosis,diabetes mellitus,and cerebral hemorrhage.Complications in all 5 cases were sudden death in 1,femural fracture in 1,unequal-length lower timbs in 1,and postoperative dislocation in 2.[Conclusion]Total hip arthroplasty has been extensively used as an effective procedure for the reconstruction of hip joint.Long-term excellent clinical results are related to preoperative preparation,patient matched fact,and the experience and surgical technique of the surgeon are also of importance to the final outcome.
5.The effect of oxaplatin on enhancing radiosensitivity in human hepatocellular carcinoma cell line HepG2
Jianyang WANG ; Weizhi YANG ; Yanru FENG ; Qin XIAO ; Hua REN ; Jing JIN ; Yexiong LI
Chinese Journal of Radiation Oncology 2016;25(11):1255-1260
Objective To explore the effect of oxaliplatin ( OXA) on enhancing radiosensitivity in human hepatocellular carcinoma cell line HepG2 . Methods 50% inhibition concentration ( IC50 ) of HepG2 cells treated with OXA was measured by using MTT method at 6, 12, 24, 48 hours. Then clone formation assay was applied to obtain sensitizing enhancement ratio ( SER) of OXA combing IR, according to the survival fraction of three groups 10?14 days after treatments:placebo?treated group ( C) ,radiation group ( IR, single dose of 1 Gy,2 Gy,4 Gy,6 Gy,8 Gy,10 Gy) and IR synchronizing OXA group ( IR+3 mg/L OXA) . The proportions of cell apoptosis were analyzed using flow cytometry at 24 hours after treatment. At last, we semi?quantitative tested the expression of extracellular regulated protein kinase 1/2 ( ERK 1/2 ) and DNA damage repair protein Ku?70 of the C,IR and IR+OXA groups. Statistical analysis was performed by T test. Results The IC50 of OXA on HepG2 cells is 54?4 mg/L at 6 hours,29?1 mg/L at 12 hours,17?8 mg/L at 24 hours and 10?5 mg/L at 48 hours.3 mg/L was selected in clone formation assay at which 80?90% HepG2 cells survived at 24 hours. The SER ( SF2 ) is calculated as 1?59. Flow cytometry showed the proportion of survival cells in IR+OXA group is significantly lower than those of IR group ( P=0?005) ,OXA group ( P=0?008) and C group ( P=0?001) . The expressions of ERK 1/2 were inhibited in IR and IR+OXA groups compared by that of control group. But the expression of ERK 1/2 in IR group showed increasing after 48 hours which was higher than that of IR+OXA group. For Ku?70,the changes of expression were similar with that of ERK 1/2. Conclusion Oxaliplatin presented enhancing radiosensitivity in human hepatocellular carcinoma cell line HepG2 in vitro.
6.Retrospective clinical analysis of fludarabine and cyclophosphamide with or without rituximab for the treatment of patients with chronic lymphocytic leukemia
Fei LI ; Zengjun LI ; Shuhua YI ; Yanru ZHANG ; Xiaoyan FENG ; Lijie XING ; Junyuan QI ; Yaozhong ZHAO ; Lugui QIU
Chinese Journal of Clinical Oncology 2014;(9):566-570
Objective:This study aimed to compare the clinical efficacy and prognosis between rituximab plus fludarabine and cyclophosphamide (FCR) and fludarabine and cyclophosphamide (FC) regimens for patients with chronic lymphocytic leukemia (CLL). Methods:The clinical data of 58 patients with CLL treated with FCR or FC regimens from December 2002 to January 2012 were analyzed retrospectively. Therapy efficacy and prognosis were compared between the two groups. Results:Among the 58 pa-tients, 27 (44.4%) experienced complete remission (CR) in the FCR group and 31 patients (19.4%) experienced CR in the FC group (P=0.039). The overall response rate (ORR) of the FCR group was higher than that of the FC group (81.5%and 51.6%, respectively, P=0.017). Fourteen patients achieved MRD-negative rating after therapy. PFS and OS in MRD-negative patients were superior compared with the MRD-positive group (P=0.000, 0.003). The proportion of MRD-negative patients in the FCR group was higher than that in the FC group (37.0%and 12.9%, respectively, P=0.032). PFS in high-risk genetic patients was lower than that in low-risk genetic patients (P=0.011, 0.027). The OS time between the two groups did not exhibit any difference. Conclusion:FCR produced a high CR and ORR in patients with CLL. Many patients in the FCR group were responsive to the treatment. Thus, FCR could be a more effective regimen than FC for patients with CLL.
7.Prognostic Value and Staging Classification of Lymph Nodal Necrosis in Nasopharyngeal Carcinoma after Intensity-Modulated Radiotherapy
Yanru FENG ; Caineng CAO ; Qiaoying HU ; Xiaozhong CHEN
Cancer Research and Treatment 2019;51(3):1222-1230
PURPOSE: The aim of the present study was to evaluate the prognostic value of magnetic resonance imaging (MRI)‒determined lymph nodal necrosis (LNN) in nasopharyngeal carcinoma (NPC) and explore the feasibility of an N-classification system based on the 8th edition of the American Joint Committee on Cancer (AJCC) system. MATERIALS AND METHODS: The MRI scans of 616 patients with newly diagnosed stage T1-4N1-3M0 NPC who were treated with definitive intensity-modulated radiotherapy (IMRT) were reviewed. RESULTS: Multivariate analysis showed that LNN was an independent negative prognostic predictor of distant metastasis free survival (hazard ratio, 1.634; 95% confidence interval, 1.023 to 2.609; p=0.040) and overall survival (hazard ratio, 2.154; 95% confidence interval, 1.282 to 3.620; p=0.004). Patients of classification N1 disease with LNN were reclassified as classification N2, and classification N2 disease with LNN as classification N3 in the proposed N-classification system. Correlation with death and distant failure was significant, and the total difference between N1 and N3 was wider with the proposed system. CONCLUSION: MRI-determined LNN is an independent negative prognostic factor for NPC. The proposed N classification system is powerfully predictive.
Classification
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Humans
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Joints
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Lymph Nodes
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Magnetic Resonance Imaging
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Multivariate Analysis
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Necrosis
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Neoplasm Metastasis
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Neoplasm Staging
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Prognosis
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Radiotherapy, Intensity-Modulated
8.Research advances in the pathogenesis of alcoholic liver disease
Ya WU ; Yanru LI ; Jizhuo YANG ; Jianzhong YIN ; Yuemei FENG
Journal of Clinical Hepatology 2020;36(12):2822-2825
Alcoholic liver disease (ALD) is a common cause of liver dysfunction and death due to liver-related diseases, which brings great harm to human health and social development. Many factors are involved in the development and progression of ALD, such as oxidative stress, change in gut microbiota, genetic variation, autophagy inhibition, and microRNAs. This article summarizes the mechanism of action of these factors in ALD, in order to provide a basis for the treatment of ALD and the discovery of new drug targets.
9.The influence factors of blood pressure circadian rhythm in peritoneal dialysis patients and its relationship with residual renal function and cardiac function
Yuxun WANG ; Yachen AN ; Yanru JIANG ; Yanzheng LI ; Jingyu FENG ; Songxin SHI ; Jingjun CHEN
Chinese Journal of Emergency Medicine 2018;27(1):99-105
Objective Observed the characteristics and influence factors of blood pressure circadian rhythm in continuous ambulatory peritoneal dialysis patients.To investigate the effect of residual renal function and cardiac function.Methods Prospectively collected 120 cases of continuous ambulatory peritoneal dialysis from June 2016 to March 2017 in Tangshan renal medicine dialysis centers,who combined with hypertension were treated with peritoneal dialysis for more than 3 months.According to the dynamic monitoring blood pressure circadian rhythm of blood pressure,120 cases were divided into the normal rhythm of blood pressure and the abnormal blood pressure rhythm group.Collected medical history;Tested related test index respectively;Cardiac ultrasound.According to the formula to calculate residual renal function,left ventricular mass index,Eingabe/Ausgabe,Ejection Fraction.Univariate and multivariate unconditional logistic regression analysis was used to analyze the risk factors of circadian rhythm of blood pressure.Stepwise multiple linear regression analysis was used to analyze the risk factors of residual renal function and cardiac function.Results CAPD patients with normal blood pressure rhythm in 14 cases(11.7%),abnormal blood pressure rhythm in 106 cases(88.3%),Among them,non dipper blood pressure accounted for 75 cases(62.5%).Single factor and multiple factors unconditioned logistic regression analysis revealed that after the comparison of gender and age,Risk factors for abnormal circadian rhythm of blood pressure were:UA(OR=1.197,95%CI:1.099-1.441),CRP(OR=1.170,95%CI:1.061-1.331),RRF(OR=1.389,95%CI:1.160-1.779).Using stepwise multiple linear regression analysis of dangerous factors affecting residual renal function and cardiac function,we found:Residual renal function negatively correlated with left ventricular myocardial mass index,systolic blood pressure drops at night rate,and ultrafiltration volume;LVMI (cardiac function) Positively correlated with 24 h average systolic blood pressure,and negatively correlated with systolic blood pressure drop ratio and residual renal function at night.Abnormal circadian rhythm of blood pressure may lead to the decline of residual renal function and cardiac function.Conclusions UA,CRP and RRF may affect the CAPD patients blood pressure circadian rhythm.At the same time,abnormal circadian rhythm of blood pressure may lead to the decline of residual renal function and cardiac function.Therefore,pay attention to the monitoring and control of ABPM,can better protect the residual renal function and improve cardiac function,so as to prolong and improve the survival time and quality of life of patients with CAPD.
10.Study on the Extraction Process of Herbal Pair Puerarin-Berberine by Plackett-Burman Design and Box-Behnken Response Surface Methodology
Cheng CHEN ; Guoping LUO ; Suomin FENG ; Cunlao ZHANG ; Mengru YAN ; Yanru GUO
China Pharmacist 2018;21(2):228-231
Objective:To optimize the alcohol extraction process of herbal pair puerarin-berberine.Methods:Based on the etha-nol reflux extraction,the extraction quantity of total flavonoids,total alkaloid,puerarin and berberine hydrochloride were used as the e-valuation index,and the independent variables included the drug particle,ratio of solid to liquid, ethanol concentration, reflux dura-tion and reflux times. Significance analysis was evaluated by Plackett-Burman design,and then the extraction process was optimized by Box-Behnken response surface methodology.Results:The optimal extraction conditions of drug pair puerarin-berberine were as follows:the drug particle was 80 mesh,the ratio of solid to liquid was 1:13,the ethanol concentration was 75%,the reflux time was 60 min, and the reflux times was 4. Under the above conditions, the extraction quantity of total flavonoids, alkaloid, puerarin and berberine hydrochloride was 120.34,56.99,109.63 and 39.26 mg ·ml-1, respectively.Conclusion: The extraction process of herbal pair puerarin-berberine is reasonable and feasible optimized by Plackett-Burman design and Box-Behnken response surface methodology.