1.Clinical research progress of Boston type l keratoprosthesis
International Eye Science 2015;(1):1-5
?Boston Type l keratoprosthesis is currently widely used. ln this article, the indication, number of cases, best-corrected visual acuity ( BCVA ) , retention, and complications in all the international published case reports will be sum up; then the main post-operative complications and their respective treatments one by one, which include retrospective membrane, glaucoma, infection will be introduced.
2.Current status of tissue engineering in urology
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(09):-
Tissue engineering provides urologists a new way to fix or reconstruct the impaired organs.Reconstitution of corporal bodies of penis with engineered tissue substitutes has been applied in animal models.In hypospadias reconstruction,the use of engineered tissue substitutes has been applied clinically.The clinical application of bladder tissue substitutes has been ongoing phase II clinical trial.Great progress has been made in renal replacement therapy with clinical application of human progenitor cells in hemofiltration units,and the engineered intracorporeal renal replacement unit will come true by additional studies.The current status of tissue engineering in clinical practice of urology is reviewed in this paper.
3.Therapeutic effect evaluation on the treatment on acute left heart failure with Shenmai injection and deslanoside
Yuanfen CHEN ; Qi JIA ; Jingjing HOU
International Journal of Traditional Chinese Medicine 2014;(4):315-317
Objective To observe the effect of treating acute left heart failure with Shenmai injection and auxiliary conventional western medicine. Methods 132 patients were randomly divided into a control group and a treatment group, with 66 cases in each group. The control group was treated with lanatoside C, captopril, diuretics, and aminophylline. While the treatment group was additionally treated with Shenmai injection on the basis of the control group. Left ventricular ejection fraction(LVEF), left smothering end-diastolic diameter(LVEDD)value, the index of b-type natriuretic peptide(BNP), and 24 h dynamic electrocardiogram(ecg)were observed in both groups after 1 month’s treatment. Results LVEF and BNP were improved in both groups after the treatment[LVEF and BNP were(40.42 ± 4.32)%, (306.57 ± 201.21)pg/ml in the treatment group and(37.92±3.32)%, (451.51±294.23)pg/ml in the control group before the treatment;(35.28±4.15)%, (540.17±382.23)pg/ml in the treatment group and(35.13±2.35)%, (572.35± 422.21)pg/ml in the control group after the treatment], and the curative effect in the treatment group was better than the control group(P<0.05). LVEDD and 24 h average heart rate were also improved in both groups after the treatment [LVEDD and 24 h average heart rate were(59.81±59.81)mm, (79.62±6.38)times/min in the treatment group and(60.91±7.31)mm, (82.61±6.32)times/min in the control group before the treatment;(60.87 ± 7.75)mm, (85.03 ± 7.75)times/min in the treatment group and(61.81 ± 7.35)mm,(86.23 ± 8.35)times/min in the control group after the treatment], but there was no statistical differenc(P>0.05). Conclusion Shenmai injection has good effects in the treatment of acute left heart failure.
5.Prevalence and Risk Factors of Illness within Two-week among Rural Residents in Menglian:a Multilevel Model Analysis
Yong MAO ; Long CHEN ; Jia ZHOU ; Tao WEI ; Bingxian QI
Journal of Kunming Medical University 2013;(10):47-52
Objective To assess prevalence and risk factors of illness within the past 2 weeks among rural residents in Menglian,under the background of essential public health service implemented generally. Methods In February 2012, the questionnaire method was employed to investigate the two-week morbidity in 2011 rural residents sampled by multistage stratified random sampling from Menglian population. Results The prevalence, that of illness within two-week among 2011 rural residents in Menglian, was 97.5‰ (95%CI 84.5‰-110.5‰) . It was lower than that of the rural region IV in China (149.6‰, <0.05) .Its age trend was the same as that of the rural region IV in China,the prevalence in 0-14 years old children,however,was higher than the counterpart in the rural region IV in China. The diseases, which two-week morbidity ranked the top five, were acute upper respiratory infection, acute gastroenteritis, hyperostosis, acute tracheobronchitis and rheumatoid arthritis. The results of multilevel logistic regression model fitted by group-level explanatory variable mountainous area, individual-level random slopes variable gender and other individual background variables indicated that there were across-level interactions between mountainous area and gender ( <0.05), the family income lower than RMB 15000 (odds ration 3.2378, 95%CI 1.9014-5.5130) and age (odds ration 1.0163, 95%CI 1.0002-1.0327) had a positive effect to two-week morbidity, and contrasting to unmarried, married had a negative effect to two-week morbidity (odds ratio 0.4727, 95%CI 0.2534-0.8819) . Conclusions Comparing with that of the rural region IV in China before implementing essential public health service, the two-week morbidity in Menglian was lower. For further elevating the health level of population, the strategies, such as intensifying material and child hygiene in the mountain area, improving sanitary conditions of low income family, and updating health consciousness in single population,would be implemented.
6.Biological effect of down-regulating of MTRR gene on cisplatin-resistant ovarian cancer SKOV3 cells in vitro and in vivo studies
Jia CHEN ; Qi WANG ; Wei ZHANG ; Li LI
Chinese Journal of Obstetrics and Gynecology 2016;(2):126-134
Objective To study the biological effects of down-regulatingof methionine synthase reductase (MTRR) gene on cisplatin resistant ovarian cancer SKOV3/DDP cell in vitro and in vivo. Methods (1) Establishing the cell line of MTRR down-regulated. Four short hairpin RNA (shRNA) for MTRR gene (U6-GFP-Neo-homo-1106, U6-GFP-Neo-homo-1931, U6-GFP-Neo-homo-419, U6-GFP-Neo-homo-1460) were designed respectively. Western blot was used to detect the interference efficiency and selected the most efficient shRNA. The MTRR 1106 was selected as the best silencing effect of interference fragment and then therecombinant plasmid vector pSicoR-1106 was constructed and transfected into SKOV3/DDP cells.The stably transfected cells was obtained by screening of flow cytometry(FCM).Fluorescence quantitative reverse transcription (RT)-PCR and western blot were used to detect the expression of MTRR mRNA and protein. (2) Study in vitro: recombinant plasmid expression vector pSicoR-1106, pSicoR-NC and packaging plasmid were respectively transfected into 293T cell. SKOV3/DDP cells were transfected by viral supernatant. The experiment was divided into three groups, namely SKOV3/DDP-MTRRi (down-regulated MTRR group), SKOV3/DDP-NC (negative control group), and the SKOV3/DDP (blank control group). The cell growth curves and half maximal inhibitory concentration (IC50) of cisplatin were made by methyl thiazolyl tetrazolium (MTT) method. Three groups cells were treated with different concentration of cisplatin (0, 1, 2 and 4 μg/ml). The clonogenicity efficiency was observed by clony formation test. The cell cycles were measured by FCM . (3) Study in vivo: three groups cells were subcutaneously inoculated into the nude mice to develop a tumor model. Mice were injected intraperitoneally with cisplatin at 2.5 mg/kg (once every 2 days, in 21 rounds), then the tumor growth was observed. The expression of MTRR and proliferation-related Ki-67 antigen by immunohistochemistry in xenograft tumors were measured. Results (1) Results showed that U6-GFP-Neo-homo-1106 was the best shRNA with interference effect to MTRR. The recombinant plasmid pSicoR-1106 was constructed and transfected into SKOV3/DDP. The MTRR mRNA and protein were down-regulated after transfected. This result showed that MTRR down-regulated SKOV3/DDP cell line was constructed successfully. (2) The cell growth curves showed that the growth of SKOV3/DDP-MTRRi cells were significantly decreased compared with that in the SKOV3/DDP-NC cells and SKOV3/DDP cells (P<0.05). The IC50 of SKOV3/DDP-MTRRi, SKOV3/DDP-NC and SKOV3/DDP were 4.01, 7.90, and 8.91 μg/ml, respectively. The IC50 of SKOV3/DDP-MTRRi was significantly lower than that in control cell groups (P<0.05).Clony formation tests showed that the clony numbers of varied concentration of cisplatin of SKOV3/DDP-MTRRi were significantly less than those of SKOV3/DDP-NC cells and SKOV3/DDP cells (P<0.05). FCM showed that when the cisplatin concentration rose to 4 μg/ml, the G0/G1 phase cell ratio in SKOV3/DDP-MTRRi cells group was (72.8±5.0)%, which was significantly higher than those in the SKOV3/DDP-NC cells group and SKOV3/DDP cells group [(64.4±2.5)%and (64.3±3.0)%], respectively (all P<0.05).(3) Six weeks after nude mice intraperitoneal injection with cisplatin, the tumor volume of SKOV3/DDP-MTRRi, SKOV3/DDP-NC and SKOV3/DDP were respectively (97 ± 32), (168 ± 45), and (173 ± 32) mm3, the tumor weight were (0.36±0.17), (1.08±0.17), and (1.11±0.20) g, in which tumor volume and weight of SKOV3/DDP-MTRRi were significantly less than those of SKOV3/DDP-NC cells and SKOV3/DDP cells (all P<0.05). In three groups tumor tissue, positive rates of MTRR were respectively 2/8, 5/8, and 7/8, the positive rates of Ki-67 were respectively1/8, 6/8, and 7/8, in which SKOV3/DDP-MTRRi was significantly lower those SKOV3/DDP-NC cells and SKOV3/DDP cells (all P<0.05). Conclusion The growth and cisplatin resistance of ovarian cancer cells could be decreased by down-expressing of MTRR gene in vitro and in vivo.
7.Preparation of Cartilage Antitumor Component and Its Effects on Human Tumor Cell Lines
Xianrong SHEN ; Fuxing JIA ; Zhijie YU ; Hui XU ; Qi CHEN
Academic Journal of Second Military Medical University 1985;0(06):-
Cartilage antuumor component (CATC) was isolated from a 1 mol/L guanidine hydrochloride extract of bovine cartilage by acetone fractioned precipitation and superfiltration. Using human skin fibroblasts as a normal control, it was demonstrated that CATC inhibited the DNA synthesis of Hela, QGY7703 tumor cell lines and bovine artery endothelial cells, but accelerated the normal cells, when the concentration was below 1250 ?g/ml. At the concentration of 5 000 ?g/ml, CATC inhibited the two cell lines. With human tumor stem cell assay, CATC inhibited the stem cell growth of Hela and QGY7703 cell lines. These suggest that CATC has the effects of inhibiting angiogenesis and tumor cells.
8.Screening of the protein interacting with inhibitor of differentiation 1′ using yeast two hybrid method
Siyuan JIA ; Xiangdong LUO ; Jie QI ; Yongyue SU ; Yu CHEN ;
Journal of Third Military Medical University 2003;0(19):-
Objective To obtain the protein interacting with inhibitor of differentiation1′(Id1′). Methods The recombinant bait plasmid pHybLex/Zeo Id1′ was constructed and transformed into yeast strain EGY48/ pSH18 34 to test pHybLex/Zeo Id1′ for non specific activation. Adult human lung cDNA libraries were screened to obtain true positive library plasmid. The true positive library clone was obtained by sequencing and basic local alignment sequence tool (BLAST). Results The recombinant bait vector, named as pHybLex/Zeo Id1′, was confirmed by sequencing. pHybLex/Zeo Id1′ was transformed into yeast strain EGY48/pSH18 34 and the transformants had no autonomously activated reporter genes. One true positive clone, obtained by screening of the adult human lung cDNA libraries, was confirmed to be Fyn by sequencing and BLAST. Conclusion Id1′ can interact with Fyn.
9.Effect of noninvasive ventilation on hypercapnic encephalopathy syndrome:a Meta-analysis
Qi LIU ; Rongchang CHEN ; Liuqun JIA ; Zhe CHENG
Chinese Critical Care Medicine 2016;(1):57-62
Objective To evaluate the effect of noninvasive ventilation (NIV) on hypercapnic encephalopathy syndrome (HES) induced by acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Methods An extensive search of related literature from the PubMed, EMBASE, Cochrane library, CNKI and Wanfang databases up to January 2015 was performed. Randomized controlled trials (RCTs) and case control studies regarding comparison of the effect of NIV and conventional mechanical ventilation (CMV) on the HES were collected. Critical appraisal skills program (CASP) was adopted to assess the quality of the studies. Data including mortality, trachea intubation rate, duration of mechanical ventilation and complication rate were collected, and Meta-analysis was performed by RevMan 5.3. Results Finally, 6 studies were included with 225 subjects, among whom 112 were in NIV group and 113 in CMV group, and the average Kelly-Matthay score was 3. Compared with CMV group, the mortality [20.5% (23/112) vs. 32.7% (37/113), risk ratio (RR) = 0.63, 95% confidential interval (95%CI) = 0.40-0.98, P = 0.04], intubation rate [35.7% (40/112) vs. 100.0% (113/113), RR = 0.38, 95%CI = 0.26-0.55, P < 0.000 01], incidence of ventilation related complications [26.2% (21/80) vs. 50.6% (42/83), RR = 0.52, 95%CI = 0.34-0.79, P = 0.002] in NIV group were significantly decreased, and the duration of mechanical ventilation was significantly shortened [days: 7.1 vs. 16.2, standard mean difference (SMD) = -0.93, 95%CI = -1.39 to -0.46, P < 0.000 1]. Conclusion NIV could significantly lower the mortality rate, intubation rate, and complications in the treatment of HES induced by AECOPD under close monitoring.
10.Effect of Butylphthalide on Autophagy of SH-SY5Y Cells Induced by l-methyl-4-phenyl-pyridiniumion
Yufeng JIA ; Qingwen WU ; Yuefa CHENG ; Juan CHEN ; Qi MENG
Chinese Journal of Rehabilitation Theory and Practice 2016;22(4):422-427
Objective To observe the effects of butylphthalide on the expression of autophagy-related protein and mRNA in l-meth-yl-4-phenyl-pyridiniumion (MPP+)-induced SH-SY5Y cells, and to explore the protective effect and possible mechanism of butylphthalide to the cell model of Parkinson's disease. Methods The SH-SY5Y cells were divided into control group (A), MPP+group (B), rapamycin pre-treated+MPP+group (C) and Butylphthalide pretreated+MPP+group (D). The relative viability of SH-SY5Y cells induced by MPP+was measured with MTT assay, the morphology of SH-SY5Y cells was observed. The expression of microtubule associated protein 1 light chain 3 (LC3)-II/I and Beclin 1 protein was detected by Western blotting. And the expression of LC3-II/I and Beclin 1 mRNA were assayed by re-al-time quantitative reverse transcription-PCR (RT-PCR). Results The viability rates of cells were significantly lower in group B than in group A (t=20.270, P<0.001), and were significantly higher in groups C and D than in group B (t>8.770, P<0.001), however, there was no significantly difference between groups C and D (t=2.270, P=0.064). The expression of LC3-II/I and Beclin 1 was higher in group B than in group A (t>6.647, P<0.01), and was higher in groups C and D than in group B (t>3.630, P<0.01), however, there was no significantly differ-ence between groups C and D (t<2.238, P≥0.05). Conclusion Butylphthalide could prevent the injury of SH-SY5Y cells induced by MPP+, which may affect Parkinson's disease by inducing autophagy.