1.Recent advances in corneal stroma protein studies
Chinese Journal of Experimental Ophthalmology 2015;33(11):1043-1047
Cornea stroma mostly consists of proteins in extracellular matrix secreted by corneal epithelial cells,stroma and endothelial cells.A total of 1 679 unique Swiss-Prot annotated proteins are identified by LC-MS/MS analyses in human corneal stroma based on SDS-PAGE separation followed by in-gel trypsin digestion.As the principal component of corneal stroma, corneal stroma proteins play an important role in the physiological and pathological activities of eye.Studies towards their functions are helpful for revealing the pathogenesis of eye diseases and providing new ideas of prevention and therapy.Mainly through their manifestations,proteins in corneal stroma play a key role in forming gel-like organic material and network like structure of filaments.The gel-like organic material is composed of proteoglycan,enzymes,haemocyanin and binding proteins,while the network of filaments are constituted by collagen, elastin,keratin,vimentin as well as interconnected filaments made from fibronectin and laminin.The categories and functions of corneal stroma proteins were summarized.
2.A meta-analysis of radiofrequency ablation for early hepatocelluar carcinoma
Xuan HUANG ; Bin Lü ; Lina MENG
Chinese Journal of Internal Medicine 2008;47(3):217-220
Objective To compare the effectiveness and safety of radiofrenquency ablation(RFA) with other therapeutic methods for patients with early hepatocelluar carcinoma(HCC). Methods Randomized clinical trials(RCTs)which compared the efficacy or safety of RFA with other therapeutic methods for primary hepatocellular carcinoma in Cochrane library,EMBASE,PubMed,OVID and CBM were searched.Trials were considered of high quality if methodological quality score was 3 or more according to Jadad standard.Statistical heterogeneity between trials was evaluated bv STATA 9.0 and considered to exist when P<0.1.Heterogeneity of the included articles was tested and used to select proper effective model for calculation.Sensitivity analysis was performed and publication bias was investigated through visual inspection of funnel plots and Egger regression model.Results Six RCTs including 862 cases were analyzed.As compared with other therapeutic approaches,RFA significandy increased 3-year overall survival rate and reduced local recurrence rate of early hepatocelluar carcinoma:the total OR were 2.06(95%CI being 1.54-2.77,P=0.000)and 0.40(95%CI being 0.28-0.57,P=0.000)respectively.As compared with other therapeutic approaches,the total OR of new HCC recurrence rates,extrahepatic metastasis rate and major complications in patients with HCC treated with RFA were 0.92 (95%CI being 0.68-1.24),0.98(95%CI being 0.30-3.22),1.35(95%CI being 0.49-3.77)respectively,showing no significant differences(P>0.05).Inspection of the funnel plots for all outcome measures did not reveal evidence of publication bias(P=0.670,0.160,0.884,0.087,0.317,respectively,by Egger regression model).Conclusions RFA is superior to other treatment methods with respect to local recurrence and 3 year overall survival in early HCC and is the preferred tberapeutic method for small HCC because it is minimally invasive,simple and convenient.
3.Professor ZHOU Yun-xian's experience of acupuncture combined with Chinese material medica for xerophthalmia.
Xuan LIU ; Hong MENG ; Yun-xian ZHOU
Chinese Acupuncture & Moxibustion 2014;34(10):1005-1008
Professor ZHOU Yun-xian's clinical experience of acupuncture combined with Chinese material medica for xerophthalmia is introduced. Her treatment for xerophthalmia is firstly focused on syndrome differentiation, indicating that different syndrome has different treatment of acupuncture and Chinese material medica. It is emphasized that by following the holistic concept of TCM, the local acupoints and whole-body acupoints cooperate closely, forming her special combination method of acupoints. In clinic, attention is focused on the application of many acupuncture techniques and extra points. With the combination of acupuncture and Chinese material medica, the treatment is flexible with superior clinical efficacy.
Acupuncture Therapy
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Combined Modality Therapy
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Drugs, Chinese Herbal
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therapeutic use
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Female
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Humans
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Male
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Middle Aged
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Xerophthalmia
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drug therapy
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therapy
4.A study on the relationship between endothelin-1 in plasma and TCD in patients with brain injury
Yawen PAN ; Dulun KANG ; Xuan MENG
Journal of Clinical Surgery 2001;0(01):-
Objective To study the relationship between endothel in-1 in plasma and TCD in patients with brain injury.Methods We measured dynamically the level of ET-1 in plasma on 33 adult brain injured patients. Cerebral vasospasm was detected by transcranal Doppler sonography (TCD).Results 1.During 6-8 days, 13-15 days after injury,there was a significantly positive correlation between the level of ET-1 in plasma and cerebral vasospasm (r=0.533,P=0.002;r=0.423,P=0.02),especially during 6-8 days after injury. The increase of the level of ET-1 in plasma paralleled paroled with the time of cerebral vasospasm developed. 2.During 6-8 days after injury, the level of ET-1 in plasma of patients with cerebral vasospasm was obviously higher than those without cerebral vasospasm obviously (P
5.Determination of thiodiglycolic acid in urine with gas chromatography-mass spectrometer.
Qingfeng XIAO ; Zhihua FU ; Chengming MENG ; Yuelan XUAN ; Wenhua QIN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2015;33(6):474-476
OBJECTIVETo establish a rapid determination method with gas chromatography-mass spectrometer (GC-MS) for thiodiglycolic acid (TDGA), a vinyl chloride (VCM) biomarker.
METHODSA high- sensitivity determination method was established using a moderate methyl esterification instead of methyl esterification of highly toxic diazo reaction.
RESULTSThe standard curve regression linear equation of the method was: y=8460.5x-4758.2, the linear coefficient was 0.999 7, the minimum quantity concentration was 2.0 µg/L, the range of precision value was 0.81%-2.38%, and the average recovery of standard addition was 99.0%-102.9%.
CONCLUSIONThis method reduces the risk of traditional methyl esterification, improves the determination sensitivity compared with the GC-FPD method, and meets the determination requirement of TDGA.
Gas Chromatography-Mass Spectrometry ; Humans ; Thioglycolates ; urine ; Vinyl Chloride
6.Distribution of historical Oncomelania hupensis snail environments and wet-land environments in Wuxi City
Xiaojun MENG ; Donglin GAO ; Xuan ZHANG ; Bing LU
Chinese Journal of Schistosomiasis Control 2014;(5):547-549
Objective To understand the distribution and characteristics of historical Oncomelania hupensis snail environ-ments and wetland environments in Wuxi City since 1952 so as to provide the evidence for formulating the monitoring strategy after the schistosomiasis transmission was interrupted. Methods A cross-sectional survey was conducted to collect the informa-tion of historical O. hupensis snail environments and wetland environments. Google Earth was used to present and analyze the distribution and characteristics of them. Results There were 2 124 historical O. hupensis snail environments in Wuxi City and the accumulative area was 2 995.7 hm2. In 2013 there were 61 surveillance sites of wetland with the area of 32.8 hm2 totally 1 695 snails were caught and no O. hupensis snails were found. Conclusion The historical O. hupensis snail environments were distributed widely and covered a large area in Wuxi City. The surveillance should be focused on the key environments and wetland.
7.The expression of HMGB1 and TLR4 in pancreatic tissue of rats with severe acute pancreatitis and the intervention effects of Ulinastatin
Jing WANG ; Xuan WANG ; Mingming DENG ; Ya MENG
Chongqing Medicine 2015;(4):450-452
Objective To explore the mechanism of HMGB1 and TLR4 in pancreatic tissue of rats with severe acute pancreatitis and the intervention effect of Ulinastatin .Methods The 54 SD rats were completely random divided into control group ,SAP group and Ulinastatin treatment group ,and each group was divided into three groups :6 ,12 h and 24 h groups (each group n=6) .In con‐trol group ,we turned the pancreatic tissue ,in SAP group ,the SAP model was made with 5% taurocholic acid ;and in the treatment group ,and intravenous injection of ulinastatin was conducted after the SAP model was successfully made .Then we observed the pancreatic tissue pathology in the three groups .The amylase in serum was detected by EPS‐G7 assay ,the HMGB1 in serum and pancreatic tissue was detected by ELISA assay ,the expression levels of HMGB1 and TLR4 in pancreatic tissue were detected by Envision two‐step immunoassay .Results Compared with control group ,the amylase of each time point in SAP group and treatment group were significantly higher ,and the pathology changed obviously (P<0 .05) ,and the SAP model was successfully made .The HMGB1 expression in pancreatic tissue and serum started increase at 6 h ,increased quickly at 12 h and maintained the increasing trend to 24 h in SAP group and it was significantly higher at the same time point compared with that of control group (P<0 .05);at the same time point ,the HMGB1 in treatment group was significantly lower than that of SAP group (P<0 .05);in SAP group , the expression of TLR4 in pancreatic tissue started increasing at 6 h ,reached its peak at 12 h and started decreasing at 24 h ,it was significantly higher than the control group at the same time point (P<0 .05) .At the same time point ,the TLR4 was significantly lower in the treatment group than SAP group (P<0 .05) .Conclusion The proinflammatory effect of HMGB1 in SAP rats pancre‐atic could be partly combine its receptor TLR4 and MyD88‐dependent pathway through implementation ,and the protecting mecha‐nism of Ulinastatin could be interrupt the HMGB1 and TLR4 signaling pathway in SAP rats pancreatic tissue .
8.Preoperative colonic stenting versus emergency surgery for acute left-sided malignant colonic obstruction: a meta-analysis
Xuan HUANG ; Bin Lü ; Yihong FAN ; Lina MENG
Chinese Journal of Digestive Endoscopy 2012;29(2):88-93
Objective To evaluate the efficacy and safety of preoperative colonic stenting versus emergency surgery for acute left-sided malignant colonic obstruction based on literature. Methods The randomized clinical trials (RCT) on the subject were retrieved from PubMed,OVID,EMBASE,Cochrane library,CNKI,Wanfang data and VIP Chinese Scientific and Technologic Periodical Database.Statistical heterogeneity between trials was evaluated by Revman 5.0 and was considered to exist when P < 0.1.Heterogeneity of the included articles was tested,which was used to select proper effect model.Publication bias was investigated through visual inspection of funnel plots.Results Five RCT including 283 cases were analyzed,in which 145 patients received preoperative colonic stenting and 138 received emergency surgery.Compared with those of emergency surgery groups,the total OR of permanent stoma,one-stage operation,and infection of preoperative colonic stenting group were 0.28 (95% CI:0.12 - 0.62,P =0.002),2.13 (95 % CI:1.28 - 3.55,P =0.004) and 0.25 (95% CI:0.08 - 0.80,P =0.02),respectively.There were no significant differences between 2 groups in anastomotic leakage,mortality,intra-abdominal infection,or overall morbidity.OR were 0.70 (95% CI:0.29 - 1.71,P =0.44),1.17 (95% CI:0.49 -2.79,P=0.72),0.27 (95%CI:0.03-2.65,P=0.26) and 0.32 (95%CI:0.07-1.42,P=0.13),respectively.Inspection of the funnel plots for all outcome measures did not reveal evidence of publication bias.Conclusion Preoperative colonic stenting significantly improves one-stage operation and decrease the rates of permanent stoma and wound infection.However,large-scale and high-quality RCTs are further needed.
9.Meta-analysis of itopride therapy in functional dyspepsia
Xuan HUANG ; Bin Lü ; Shuo ZHANG ; Yihong FAN ; Lina MENG
Chinese Journal of Digestion 2012;32(10):698-701
Objective To evaluate the efficacy and safety of itopride in the treatment of functional dyspepsia (FD) according to the data of published clinical studies.Methods The papers about randomized controlled trials (RCT) of itopride in treatment of FD were searched from Cochrane library,EMBASE,PubMed,Elsevier,web of science (ISI),China national knonledge internet (CNKI),VIP Chinese Scientific and Technologic Periodical Database and Wanfang data,and the feature information in the studies were extracted.The relative risk (RR) value was used for count data and the weighted mean difference (WMD) was used for measurement data.The proper effect model was selected according to the results of heterogeneity test and the publication bias was investigated through visual inspection of funnel plots.Results A total of nine RCT met the inclusion standard.Of 2620 FD cases,1372 received itopride treatment and 1248 cases received placebo or other medicine as control treatment.The RR value of total effective rates,postprandial fullness and early satiety effective rates in itopride treated FD patients was 1.11 (95%CI:1.01,1.21; P=0.02),1.18 (95%CI:1.04,1.33; P=0.009),1.24 (95%CI:1.01,1.53; P=0.04),which showed the curative effects of itropride group were all better than those of control group.However there was no statistical significance in epigastric discomfort.The WMD of effective rates evaluated with the leeds dyspepsia questionnaire (LDQ) score was-1.38 (95%CI:-1.75,-1.01; P<0.01),which showed the curative effect of itropride group was better than that of control group.For safety,the adverse effects rates of itopride groups were similar with control groups.The funnel plots of each inspection index presented wide bottom,narrow up and symmetrical graphics,which indicated that there was no publication bias.Conclusion Itopride has better efficacy in general symptoms,postprandial fullness,early satiety and LDQ score in FD patients,and few effects are detected.
10.Research in correlation of professional commitment and communication ability among nursing baccalaureate students in universities of Traditional Chinese Medicine
Yan LI ; Xuan ZHOU ; Shuxia TIAN ; Qi LI ; Fanjie MENG
Chinese Journal of Practical Nursing 2014;30(21):19-21
Objective To investigate the level of professional commitment of nursing baccalaureate students,and explore the relationship between the professional commitment and communication ability.Methods Questionnaires were used to investigate 430 nursing baccalaureate students who were studying in the school.Results The professional commitment of nursing students was in the middle level.Correlation analysis revealed that the communication ability was correlated with the professional commitment.Conclusions We should take measures to improve the competency of professional commitment of nursing undergraduate students,strengthen their communication ability,promote the construction of nursing staff.