1.Effect of 23 G minimally invasive vitrectomy without irrigation in cataract ultrasonic phacoemulsification and trabeculectomy of phakic malignant glaucoma
Zhan-Feng, WANG ; Chang-Qin, XU
International Eye Science 2016;16(10):1879-1882
AIM: To investigate the efficacy of 23G minimally vitrectomy without irrigation in cataract phacoemulsification and trabeculectomy of malignant glaucoma, and to analyze such compound operative procedures for phakic malignant glaucoma.
●METHODS:A total of 21 phakic malignant glaucoma patients (21 eyes) underwent anterior vitrectomy without irrigation by using 23G vitrectomy. During surgical course phacoemulsification with anterior and posterior continuous circular capsulorhexis, trabeculectomy combined with iridectomy would be completed. lntraocular pressure, anterior chamber depth changes and postoperative complications were observed after the operation.
●RESULTS:ln the three-month follow-up, intraocular pressures were reduced from ( 57. 18 ± 6. 18 ) mmHg to (16. 15 ± 2. 43 ) mmHg, there was statistical difference compared with pre - operation ( P < 0. 001 ). The preoperative anterior chamber depth (ACD) was (0. 88± 0. 25) mm, the postoperative ACD was (2. 44±0. 37) mm 3mo later, there were significant difference (P<0. 001). The best corrected visual acuity improved significantly, no serious postoperative complication appeared.
● CONCLUSION: The compound surgical method of anterior vitrectomy combined with phacoemulsifier and trabeculectomy can effectively treat phakic malignant glaucoma. Early diagnosis and early compound surgery may effectively reduce the intraocular pressure of malignant glaucoma.
3.Effect and mechanism of neuroepithelial cell transforming gene 1 on cellular radiosensitivity
Chang XU ; Yan WANG ; Liqing DU ; Qin WANG ; Qiang LIU
Chinese Journal of Radiological Medicine and Protection 2015;35(1):49-52
Objective To study the effect of neuroepithelial cell transforming gene 1 (Net1) on the cellular radiosensitivity and underlying mechanism.Methods Real-time quantitative PCR was used to measure the variations in Net1 expression level upon irradiation.Radiosensitivity was analyzed by colonyforming assay after Net1-siRNAs.Net1-associated proteins were identified by co-immunoprecipitation.Results The Net1 mRNA level in the cells was increased significantly (t =-10.52,P < 0.05) after irradiation.Compared to the control group,siRNA-mediated silencing of Net1 enhanced cell radiosensitivity (t =15.31,11.65,P <0.05).Net1 was found to interact with Ku70,Ku80 and DNA-PKcs under either normal conditions or after irradiation.Conclusions Net1 could protect cells from irradiation by interaction with DNA repair proteins in non-homologous end joining pathway.
4.Investigation of Somatic Diseases of Inpatients with Psychosis and Hospitlized a Long-term
Ai-qin XU ; Yong-ping WANG ; Chang-yin ZHAO
Chinese Journal of Rehabilitation Theory and Practice 2006;12(4):349-350
ObjectiveTo investigate the diagnoses of somatic diseases of inpatients with psychosis and hospitalized more then 2 years.MethodsThe material of all 350 inpatients were investigated and analyzed.ResultsThe first three psychiatric diagnoses were schizophrenia (61.32%), Alzheimer's disease (15.26%), mood disorder (4.74%). The first three diagnoses of accompanying somatic diseases were heart disease (8.68%), diabetes mellitus (8.42%), and hypertension (4.47%).ConclusionWith the changes of social environment, the disease pedigree of inpatients with psychosis changes, senile patients become more and more, and the incidence of concurrent somatic diseases gradually increases.
5.Analysis of clinical effects of cervical artificial disc replacement or anterior cervical decompression and fusion for the treatment of single cervical disc herniation.
Da LIU ; Chang-qing JIA ; Xiao-jun XU ; Feng LIANG ; Gen BA ; Qin FU
China Journal of Orthopaedics and Traumatology 2015;28(1):21-25
OBJECTIVETo explore the clinical effects of Mobi-C cervical artificial disc replacement (CADR) and anterior cervical decompression and fusion (ACDF) in treating single cervical disc herniation.
METHODSFrom June 2009 to June 2012, the clinical data of 27 patients with single cervical disc herniation were retrospectively analyzed. There were 18 males and 9 females, aged from 30 to 62 years old with an average of 46.7 years. Of them, 12 patients were treated with CADR (CADR group) and 15 patients with ACDF (ACDF group). All patients had pain and numbness in neck, shoulder and upper limbs, and courses of disease was from 1 to 13 months with an average of 2.4 months. The data of clinical evaluation and questionnaire survey about quality of life were collected before operation, postoperative at 1 week and final follow-up. Odom criterion was used to evaluate postoperative effect. Visual analogue scale (VAS) was used to record pain levels. Neck disability index (NDI) and health questionnaire SF-36 were used to assess the quality of life.
RESULTSNo complications about nerve and blood vessel were found and the patients were followed up from 6 to 30 months, with an average of 16 months. One week after operation, 10 cases got excellent results and 2 good in CADR group; 5 cases got excellent results and 10 good in ACDF group; there was significant difference between two groups (P<0.05). At final follow-up, 10 cases got excellent results and 2 good in CADR group; 12 cases got excellent results and 3 good in ACDF group; there was no significant difference between two groups (P> 0.05). Pain of upper limbs had obviously relieved between two groups at 1 week after operation and final follow-up (P<0.05). VAS of neck and NDI in CADR group had decreased respectively from preoperative 3.58±0.79, 23.42±6.36 to 0.58±0.51, 5.42±1.68 at 1 week after operation (P<0.05); but the index in ACDF group was no obvious at 1 week after operation. At final follow-up, VAS of neck and NDI and SF-36 score were obviously improved than preoperation (P<0.05) between two groups.
CONCLUSIONMobi-C CADR retains the movement unit in the decompression segment and can quickly recover normal action for patients. Using CADR method has a good curative effect in the early phase, and the clinical effect is reliable, may improve the quality of life.
Adult ; Decompression, Surgical ; methods ; Female ; Humans ; Intervertebral Disc Displacement ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Spinal Fusion ; methods ; Total Disc Replacement ; methods ; Visual Analog Scale
6.Influence of complex aerobatics on serum gastrin level of pilots.
Gui Xi MA ; She Zhen QIN ; Ming Gao LI ; Lan Gen XU ; Xin Hua CHANG
Korean Journal of Aerospace and Environmental Medicine 1993;3(2):71-72
No abstract available.
Gastrins*
7.IGF-Ⅱ inhibits adriamycin-induced apoptosis of HepG2
Ming LIU ; Hong CHANG ; Guojun WU ; Qingling MU ; Jian XU ; Chengkun QIN
Chinese Journal of General Surgery 2008;23(4):282-284
Objective To investigate the effects of IGF-Ⅱ on adriamycin-induced apoptosis of hepatocellular carcinoma cell line(HepG2).Methods Cultured HepG2 cells were divided into:①group A:control group;②group B:ADM group(200 ng/ml);③group C:2 ng/ml IGF-Ⅱ+200 ns/ml ADM group;④group D:20 ng/ml IGF-Ⅱ+200 ng/ml ADM group;⑤group E:200 ng/ml IGF-Ⅱ+200 ng/ml ADM group. After HepG2 were treated for 48 h,MTT colorimetry was performed to determine the cell viability,Flow cytometry was used to detect the cell apoptosis rate,and Weastern-blot was performed to evaluate the expression of survivin. Results The cell viability of group A、B、C、D、E was respectively 0.568±0.025、0.201±0.020、0.232±0.027、0.268±0.013 and 0.304±0.019;The cell apoptosis rate of group A、B、C、D;E was respectively 6.9%±1.3%、35.4%±2.1%、31.2%±2.2%、26.4%±1.7%and 21.7%±1.9%;Survivinβ-actin of group A、B、C、D、E was respectively 0.527±0.039、0.147±0.081、0.311±0.069、0.421±0.033 and 0.469±0.031.The cell viability in IGF-Ⅱ+ADM group was better than ADM group(P<0.01),the cell apoptosis rate in IGF-Ⅱ+ADM group was significantly lower than ADM group(P<0.01),the expression level of survivin in IGF-Ⅱ +ADM group was significantly higher than ADM group(P<0.01). Conclusions IGF-Ⅱ inhibits ADM-induced apoptosis of HepG2 cells,probably by up-regulating cell's survivin expression.
8.Study on the design of the experimental rat fixtures and the method of rat tail vein injection
Chengdong JI ; Yuanchang XIONG ; Xuan GUO ; Shuwen QIAN ; Haiqing QIN ; Chang XU
Chinese Journal of Primary Medicine and Pharmacy 2013;20(22):3371-3372,后插1
Objective To provide a fixtures and feasible injection method for rat tail vein injection.Methods SD rats were randomly divided into A group and B group,thirty rats in each group.Rats in group A fixed by a simple and practical experimental rats fixtures.And rats in group B fixed by common plastic drink bottles.Then the tail vein injection experiment was conducted respectively.Results It took one people 31.2 seconds in group A and 33.1 seconds in group B to finish the experiment from capture to fix rats,and took one people 68.4 seconds in group A to finish the experiment from capture to finish the injection,while it couldn't finish in group B.It took two people 25.4 seconds in group A and 25.8 seconds in group B to finish the experiment from capture to fix rats,and took 63.7 seconds in group A and 85.6 seconds in group B to finish the experiment from capture to finish the injection.Conclusion The experimental rats fixtures can increase the success rate of rats tail vein injection,and shorten the injection time.It is a safe and effective method.
9.Inhibitory effect of Rb94 gene combined with radiotherapy on growth of esophageal carcinoma cells of tumor-bearing nude mice
Qin WANG ; Liqing DU ; Yan WANG ; Chang XU ; Jin LI ; Qiang LIU
Journal of Jilin University(Medicine Edition) 2017;43(2):220-224
Objective:To study the inhibitory effect of retinoblastoma 94(Rb94) gene combined with radiotherapy ionizing radiation on the growth of esophageal carcinoma cells of tumor-bearing nude mice, and to clarify the synergistic effect of Rb94 gene and radiotherapy in inhibiting the growth of tumor cells.Methods:The models of tumor-bearing BALB/c-nu nude mice were built by inoculating the K150 cells.The model mice were divided into five groups:blank control(no any treatment), Ad-LacZ(control adenovirus including LacZ gene but not Rb94 gene, Ad-LacZ was transfered into tumor xenograft on 0, 3, 7 d separately), Ad-Rb94(tumor xenograft was transfected with Ad-Rb94 on 0, 3, 7 d separately), radiation (tumor xenograft was irradiated with 4 Gy γ-radiation on 1, 4, 8 d separately) and Ad-Rb94 combined with radiation(combination group, tumor xenograft was irradiated with 4 Gy γ-radiation after transfected with Ad-Rb94) groups.The volumes and the weights of esophageal carcinoma and the inhibitory rates of tumor growth of the mice in various groups were detected.The expression levels of ABL and JNK kinase in tumor tissue of the mice in various groups were measured,and the pathological changes of tumor tissue were investigated.Results:The speeds of tumor growth of the nude mice in Ad-RB94, radiation, and combination groups were slower than that in control group.The volume of esophageal carcinoma in combination group at day 15 after treatment was markedly smaller than those in Ad-RB94 and radiation groups,and there were significant differences compared with control group and Ad-LacZ group (F=26.7,23.8;P<0.01).The tumor weight of the nude mice in combination group was the lightest at the end of treatment;the inhibitory rate of tumor growth in combination group reached 81.16% and was significantly higher than those in Ad-Rb94 group(57.84%)and radiation group(38.20%)(P<0.01).The expression levels of ALB and JNK kinase in tumor tissue of the mice in combination group was markedly higher than those in control group(P<0.01).Compared with other groups, the tumor cells in combination group had fewer karyokinesis and lower level of nuclei hyperchromasia.Conclusion:Rb94 gene combined with radiotherapy shows synergistic effect in inhibiting the growth of tumor of tumor-bearing nude mice.
10.The Effect of XRCC2 Gene Silencing Combined with Radiation on Human Colonic Transplanted Carcinoma in Nude Mice
Qin WANG ; Yan WANG ; Liqing DU ; Chang XU ; Feiyue FAN ; Qiang LIU
Journal of China Medical University 2015;(5):385-388
Objective To study the curative effect of XRCC2 gene silencing mediated by shRNA combined with radiation on human colonic trans?planted carcinoma in nude mice. Methods Colonic carcinoma T84 cells were transfered into BALB/c nude mice to establish a tumor xenograft mod?el in vivo. Mice were divided into three groups:control,shRNA?SC and shRNA?XRCC2 and exposed to X?ray radiation. The change of volume and weight of the xenografts were examined after receiving radiotherapy and the pathological analysis of tumor tissues were conducted. Results Tumor xenografts transfected with shRNA?XRCC2 in nude mice grew slowly. The xenograft volume in the shRNA?XRCC2 group was decreased significant?ly from day 12 to day 28 after radiotherapy compared with the control group(P<0.01). The xenograft weight in the shRNA?XRCC2 group was small?er than in the control group,with statistically significant difference(t=18.843,P<0.01). The inhibited rate of xenografts in the shRNA?XRCC2 group(56.25%),was markedly higher than that in the shRNA?SC group(4.69%). Pathological analysis of colonic transplanted carcinoma showed that nuclear atypia was not obvious,karyokinesis was decreased and small areas of necrosis were present in tumor xenografts treated with shRNA?XRCC2 transfection. Conclusion XRCC2 gene silencing combined with radiation has significant inhibition effect on colonic transplanted carcino?ma in nude mice.