1.Effect of 3-MA on camptothecin-induced cervical cancer Hela cell apoptosis
Xiaona WANG ; Laifeng REN ; Anjiang ZHAO ; Wanxia YANG ; Yunqing REN
Chinese Journal of Immunology 2016;32(8):1128-1132
Objective:To explore the effect of autophagy inhibitor 3-methyladenine(3-MA) on camptothecin(CPT)-induced Hela cell apoptosis.Methods:MTT assays were carried out to determine the optimal concentration and time of CPT on Hela cells and the effect of different drugs on Hela cell proliferation activity .After Hela cells were treated with different drugs ,the changes of autophagy marker protein( microtubule-associated protein 1 light chain 3,LC3),p62 and apoptosis-related protein were detected using Western blot and immunofluorescence ( IF) .DAPI ( nuclear ) staining was used to observe cell apoptosis rate .Results: In CPC-treated Hela cells,Hela cell proliferation activity declined dramatically ,and autophagy could be induced to occur .Compared with CPT group ,the cell proliferation activity was lower in CPT combined with 3-MA group,the level of autophagy decreased ,but the apoptosis rate significantly increased.Conclusion:CPT can induce autophagy while inducing Hela cell death .Hela cells chemosensitivity to CPT treatment can be enhanced by 3-MA inhibiting autophagy .
2.Expression of TSLP and NF-κB in patients with adenomyosis
Ying LIU ; Yunqing REN ; Liping XUE ; Xiaoyan LI ; Binyu SONG
Chinese Journal of Immunology 2014;(7):963-967
Objective:To investigate the role of TSLP and NF-κB in the pathogenesis of adenomyosis.Methods:Immunohisto-chemistry was employed to detect the expression of TSLP and NF-κB p65 in the endometrial glandular cell and stromal cell of 35 adeno-myosis patients and 20 hysteromyoma patients as control , and analyze the correlation of the two proteins.The concentration of TSLP was measured by specific ELISA in the serum of healthy subjects besides of the patients with adenomyosis and hysteromyoma .Results:TSLP and NF-κB p65 were both positively expressd in the glandular cells and stromal cells of ectopic and eutopic endometrium of patients with adenomyosis , their expression was significantly higher than that of the control group ( P<0.01 ) , and the expression of TSLP and NF-κB p65 in ectopic endometrium was significantly higher than that in eutopic endometrium ( P<0.01 ).There was positive correlation between TSLP and NF-κB p65 in ectopic endometrium.The concentration of TSLP was higher in the serum of patients with adenomyosis.Conclusion:The TSLP is highly expressed in endometrial glandular and stromal cells of patients with adenomyosis , and there is higher level of TSLP in serum , and there is correlation between the expression of TSLP and NF-κB in ectopic endometrium.
3.Expression of HLA-G protein in adenomyosis and its functions
Qian ZHAO ; Yunqing REN ; Liping XUE ; Peili LI ; Yaxiang WANG
Chinese Journal of Immunology 1985;0(06):-
0.05).Conclusion:The abnormal expression of HLA-G protein in eutopic and ectopic endometrium tissues may play a key role in the pathogenesis of adenomyosis.
4.Experimental study of improved arthroscopic reconstruction of posterior cruciate ligament using tibial Inlay technique
Xuefeng JIANG ; Huiguang YANG ; Yunqing ZHANG ; Jun XU ; Guowei HUANG ; Yajun REN ; Huiqing SUN
Chinese Journal of Orthopaedics 2011;31(3):260-264
Objective To improve the arthroscopic posterior cruciate ligament (PCL) reconstruction using tibial Inlay technique. Methods The special arthroscopic device and related fixation technique were designed. Five cadaveric knees were used to simulate the process of arthroscopic posterior cruciate ligament reconstruction using tibial Inlay technique. The knees were cut open to observe whether the outlet of the tibial tunnel shape and location met the design requirements. Thirty normal MRI films were measured to identify tunnel angle and localizer angle. Results The inner outlet of tunnel was conical shape(14 mm×7 mm×15 mm) and the outer outlet was cylinder-shaped (a diameter of 7 mm). The tibial drill was designed into a split structure and could be assembled in vitro. According to the data obtained from MRI films, the angle between the plane of posterior cruciate ligament and horizontal place was 36°-47°, and the localizer was fixed at 50°.The achilles tendon was used as implant and the allogft bones were designed into conical shape to fit the inner outlet of tunnel. The other end of implant to the proximal tibia was fixed with button plate. All reconstruction operations were performed under arthroscopy. The outcomes of procedure were satisfactory. There were no vascular or peripheral nerve injuries in the cadaveric knees The tunnel position was accurate and the shape of tunnel had met the design requirements. Conclusion Our results imply that improved arthroscopic of posterior cruciate ligament using tibial Inlay technique is simple, accurate, rapid and stable fixation.
5.SWOT analysis of"1233"ideological and political teaching reform in Medical Immunology
Guangping HAO ; Yunqing REN ; Changyan CHE ; Hehua YOU
Chinese Journal of Immunology 2024;40(6):1265-1270
As an online and offline mixed teaching method,the"1233"ideological and political teaching reform in Medical Immunology can improve students'independent learning ability,thinking ability,practical ability,ideological and political literacy.It has been piloted on a large scale at Fenyang College of Shanxi Medical University.Moreover,the quality course on the Wisdom Tree online platform has been recognized as the second batch of national first-class quality course.Currently,thirty universities have chosen this quality course.Starting from the actual development of the current"1233"ideological and political teaching reform,this paper uses the SWOT analysis method to systematically analyze the internal advantages and weaknesses,as well as the opportunities and threats of the external competitive environment of the course.Based on this,propose some relevant improvement suggestions and directions,and provide important support for the subsequent optimization and improvement of"1233"ideological and political teaching reform in Medical Immunology.
6.Recent advance in morphology and function of central medial thalamic nucleus
Xiao REN ; Xiaoni YE ; Mingming ZHANG ; Qian ZHANG ; Yunqing LI
Chinese Journal of Neuromedicine 2024;23(5):494-499
Central medial thalamic nucleus (CM) is a nucleus located in the medullary plate of the midline thalamus. It belongs to the midline nucleus group of the thalamus and serves as a non-specific projection system. CM has extensive anatomical connections with other brain areas and acts as a relay and integration center for brain functions. Recent research has demonstrated that CM is involved in various behaviors such as general anesthesia and arousal, pain, itch, emotions, and cognition. This paper reviews the anatomical structure, morphology, fiber connection, electrophysiological characteristics, and other related functions of CM to provide references for future research.
7.Non-biological artificial liver technology in the treatment of early liver allograft dysfunction in 2 children with liver transplantation
Sijuan SUN ; Jian ZHANG ; Yueling XI ; Yunqing ZHOU ; Diqi ZHU ; Hong REN ; Ying WANG ; Juan QIAN
Chinese Journal of Applied Clinical Pediatrics 2020;35(19):1511-1513
The clinical data of 2 children with early graft liver dysfunction (EAD) admitted to the Pediatric Intensive Care Unit, Shanghai Children′s Medical Center, Shanghai Jiaotong University School of Medicine were retrospectively analyzed to discussed the therapeutic significance of non-biological artificial liver technology, such as intermittent plasma exchange (PE) combined with continuous veno-venous hemodiafiltration (CVVHDF) in children with EAD.Case 1 was suffering from biliary atresia, and case 2 was suffering from Niemann-Pick disease.Graft liver dysfunction and multiple organ dysfunction occurred in 2 children after liver transplantation.PE and CVVHDF were initiated early in the first two days after liver transplantation.After one-week therapy with intermittent PE plus CVVHDF, acute multiple organ dysfunction were reversed with liver function remarkably improved in the 2 cases.Therefore non-biological artificial liver technique can be tried after liver transplantation in children.This technique contributes to the recovery of liver function and can improve the secondary multi-organ insufficiency.
8.Anatomical morphology of the aortic valve in Chinese aortic stenosis patients and clinical results after downsize strategy of transcatheter aortic valve replacement
Guannan NIU ; Ben Walid ALI ; Moyang WANG ; Hasan JILAIHAWI ; Haitong ZHANG ; Qian ZHANG ; Yunqing YE ; Xinmin LIU ; Jing YAO ; Qinghao ZHAO ; Yubin WANG ; Zheng ZHOU ; Lizhi ZHANG ; Xinshuang REN ; Yunqiang AN ; Bin LU ; Thomas MODINE ; Yongjian WU ; Guangyuan SONG
Chinese Medical Journal 2022;135(24):2968-2975
Background::The study aimed to describe the aortic valve morphology in Chinese patients underwent transcatheter aortic valve replacement (TAVR) for symptomatic severe aortic stenosis (AS), and the impact of sizing strategies and related procedural outcomes.Methods::Patients with severe AS who underwent TAVR were consecutively enrolled from 2012 to 2019. The anatomy and morphology of the aortic root were assessed. "Downsize" strategy was preformed when patients had complex morphology. The clinical outcomes of patients who performed downsize strategy were compared with those received annular sizing strategy. The primary outcome was device success rate, and secondary outcomes included Valve Academic Research Consortium-3 clinical outcomes variables based on 1-year follow-up.Results::A total of 293 patients were enrolled. Among them, 95 patients (32.4%) had bicuspid aortic valve. The calcium volume (Hounsfield Unit-850) of aortic root was 449.90 (243.15-782.15) mm 3. Calcium is distributed mostly on the leaflet level. Downsize strategy was performed in 204 patients (69.6%). Compared with the patients who performed annular sizing strategy, those received downsize strategy achieved a similar device success rate (82.0% [73] vs. 83.3% [170], P= 0.79). Aortic valve gradients (downsize strategy group vs. annular sizing group, 11.28 mmHg vs. 11.88 mmHg, P = 0.64) and percentages of patients with moderate or severe paravalvular regurgitation 2.0% (4/204) vs. 4.5% (4/89), P = 0.21) were similar in the two groups at 30 days after TAVR. These echocardiographic results were sustainable for one year. Conclusions::Chinese TAVR patients have more prevalent bicuspid morphology and large calcium volume of aortic root. Calcium is distributed mostly on the leaflet level. Compare with annular sizing strategy, downsize strategy provided a non-inferior device success rate and transcatheter heart valve hemodynamic performance in self-expanding TAVR procedure.