1. Research and analysis on current situation of pre-deployment training for PLA peacekeeping medical units
Academic Journal of Second Military Medical University 2014;35(8):813-818
Objective To understand the status quo of pre-deployment training for PLA peacekeeping medical unit and to propose suggestion for improvement. Methods Questionnaire survey, spot investigation and seminars were used in this study. The participants included those who had attended the pre-deployment training for PLA peacekeeping medical unit from five military area commands, namely, Shenyang, Beijing, Lanzhou, Chengdu, and Jinan, and the international military medical students in Second Military Medical Universitiy. Microsoft Excel and SPSS 21.0 were used for data processing and analysis. Results PLA commands of different levels all attached great importance to peacekeeping health service, and the candidates for peacekeeping were of high quality, but their English communication ability needed improvement. Pre-deployment training was carried out by different units themselves, with poor training facilities, lack of experienced teachers, text books, and scientific test evaluation system. Conclusion More attention is needed on English communication training for PLA peacekeeping medical unit. A training base for PLA peacekeeping mission should be established, and the training should be carried out by a third party in a standard and intensive manner.
2.Localization and treatment of functional insulinoma of the pancreatic uncinate process
Jie LIN ; Zhong ZENG ; Jian DUAN ; Hanfei HUANG
Chinese Journal of Digestive Surgery 2010;09(5):389-391
Functional insulinoma accounts for 85% of insulinoma, and it is evenly distributed in the head, body and tail of the pancreas. The main clinical manifestation of patients with functional insulinoma is endocrine disorder, and 92% of them presented with neurological symptoms. Preoperative localization of functional insulinoma is difficult because of the small size of the tumor. A 31-year-old male patient with the chief complaint of paroxysmal dizziness and confusion was admitted to the First Affiliated Hospital of Kunming Medical College on May 3,2010. The patient was preliminarily diagnosed with functional insulinoma by detecting the levels of fasting blood glucose,serum insulin and fasting serum C-peptide, as well as the presence of Whipple's triad. Ultrasonography and enhanced computed tomography demonstrated that a well-defined tumor of 13.0 mm ×13.0 mm in size was located in the pancreatic uncinate process.On May 27, 2010, the patient received surgical resection of the tumor, and histological examination of the resected specimen confirmed insulinoma.
3.Effects of intrathecal administration of strychnine on propofol induced antinociception
Jie YU ; Tijun DAI ; Shiming DUAN ; Yinming ZENG
Chinese Pharmacological Bulletin 1986;0(05):-
0.05),but the HPPT was dose-dependently increased in 25 and 50 mg?kg -1 groups(P0.05); on the contrary ,strychnine 0.5,0.75,1.0 ?g(it) decreased the HPPT of propofol-treated mice as doses increased(P0.05). CONCLUSION Propofol can induce antinociception in hot-plate test and acetic acid-induced writhing test of mice. Spinal glycine receptors may play a role in propofol's antinociceptive properties in hot-plate test of mice.
4.Clinical efficacy of combined hemihepatectomy for hilar cholangiocarcinoma
Shasha PENG ; Hanfei HUANG ; Jian DUAN ; Jie LIN ; Min DAI ; Yi ZHANG ; Zhong ZENG
China Oncology 2014;(6):451-456
Background and purpose: Because of the aggressive nature of hilar cholangiocarcinoma and the absence of effective adjuvant therapy, surgical radical resection offers hilar cholangiocarcinoma patients the only choice. Research focus include preoperative assessment, the use of preoperative biliary drainage, the range of hepatic resection, and the range of lymphadenectomy. To investigate the clinical experience and efifcacy of combined hepatectomy in the treatment of hilar cholangiocarcinoma. Methods: Two hundred and seven patients with hilar cholangiocarcinoma treated surgically in the First Afifliated Hospital of Kunming Medical University form Jan. 2007 to Oct. 2013 were retrospectively analyzed. Results:Of the 207 patients, 125 patients who received radical resection (R0 resection) and the curative resection rate was 60.4%. One hundred and iffty-six cases were treated in combined hepatectomy group, 51 cases in non-hepatectomy group, the rate of R0 resection was 70.5%in hepatectomy group and 29.4%in non-hepatectomy group, and the difference was signiifcant (P<0.01). Two patients died perioperatively, the main postoperative complications included hepatic function insufifciency and bile leakage. One hundred and seventy-two patients were followed up, the median survival time of the 102 patients who received R0 resection was 45 months, and the 1, 3, 5 year survival rates were 96.1%, 59.1%and 17.2%. The median survival time of the 70 patients who received R1-2 resection was 26 months, and the 1, 3 year survival rates were 81.3%and 19.2%, and none of the patient survived for over 5 years. The survival rate of patients who received R0 resection was signiifcantly higher than those who received R1-2 resection (χ2=39.121, P<0.01). In the hepatectomy group was awarded the R0 resection in patients with postoperative 1, 3, 5 year survival rate was 97.8%, 63.9% and 18.0%, in non-hepatectomy group received R0 resection in patients with postoperative 1, 3, 5 year survival rate was 83.3%, 20.8%and 8.3%. There were signiifcant differences in the postoperative survival rate between both group (χ2=5.988, P=0.014). Conclusion:Radical excision is the key to improve the long term survival. Combined hemihepatectomy and standardized lymph node resection has signiifcantly improved the radical resection rate and the efifcacy of treatment for hilar cholangiocarcinoma.
5.A comparative study on primary closure of common bile duct using barbed suture after laparoscopic exploration of common bile duct stones
Jian DUAN ; Shikun YANG ; Renping XIA ; Jie LIN ; Hanfei HUANG ; Wanggang XU ; Zhong ZENG
Chongqing Medicine 2017;46(4):478-479,482
Objective To explore the effectivity and feasibility of uindirectional barbed suture for primary closure of common bile duct on Laparoscopic Exploration of Common Bile Duct Stones, Methods From January 2013 to August 2015,109 cases of primary closure of common bile duct after Laparoscopic Exploration of Common Bile Duct Stones were performed in this hospital.The characteristics of these cases were retrospectively comparatively analyzed.Results Conventional braided Sutures in 68 cases(group A),barbed Suture Devices in 41 cases (group B).There was no difference in postoperative hospital stay,intraoperative blood loss and complication rate between the two groups.Differences in bile duct incision suture time and operative time between the two groups were significantly different.Conclusion The application of uindirectional barbed suture for primary closure of common bile duct using barbed suture after Laparoscopic Exploration is a safe and effective way after treatment of choledocholithiasis.This method cuold reduce the difficulty of operation,and shorten the operation time and the learning curve.
6.A comparative study on upfront common bile duct suturing and T-tube drainage after exploration of common bile duct stones
Shuai WANG ; Hanfei HUANG ; Jian DUAN ; Wanggang XU ; Jie LIN ; Wenxiang ZOU ; Zhong ZENG
Chinese Journal of General Surgery 2013;(5):351-353
Objective To evaluate upfront common bile duct suturing against T-tube drainage after exploration in the treatment of common bile duct stone.Methods 253 cases of extrahepatic bile duct stones treated at our department from 2008 June to 2012 January were randomly divided into primary suture group and T tube drainage group,by t test or analysis of variance independent sample comparison.Results All operations were successful.Postoperative bile leakage was observed in 2 patients in group A and 4 in group B respectively(P > 0.05),there was no reoperations in the two groups.In group B retrograde biliary tract infection developed in one and was cured by biliary tract flush combined with antibiotics administration.The abdominal drainage was bile tainted fluid about 5-10 ml a day in bile leakage cases in both groups and healed itself in 3-4 days without fever,jaundice symptoms.There was no other severe complications such as pancreatitis.The postoperative biliary complication rate (P =0.802),operative time (P =0.137),intraoperative blood loss (P =0.069) and liver function recovery(ALT P =0.087,AST P =0.752,TBIL P =0.459,DBIL P =0.217,ALP P =0.576,GGT P =0.362) was not significantly different between the two groups.In group A postoperative flatus passing (P =0.037),postoperative fluid volume (P =0.008),postoperative hospital stay(P =0.015) were better than that in T-tube drainage group.At 3 to 12 months follow-up,no patients were found to have residual stones and biliary stricture in group A and group B.Conclusions With the definite indication and proficient surgical technology,primary suture of common bile duct after exploration is a safe and effective way after treatment of choledocholithiasis.
7.Heritability of serum uric acid in adult twins
Hai-Ping DUAN ; Zeng-Chang PANG ; Dong-Feng ZHANG ; Shao-Jie WANG ; Yao-Min ZHAI ; Dong ZHANG ; Qi-Hua TAN
Chinese Journal of Epidemiology 2010;31(4):384-388
Objective To assess the heritability of serum uric acid in adult,using the classic twin design.Methods Adult Twins were recruited from the Qingdao Twin Registry.Uric acid,height,weight were measured.Zygosity in all the same-sex twin pairs was determined by 16 polymorphic markers.Heritability was assessed by structural equation models,with age,gender and body mass index(BMI) included as covariates.Results In total,687 twin pairs were available for data analyses,including 420 pairs of monozygotic and 267 pairs of dizygotic twins.After logarithm transformed,uric acid in males ( 17.47±1.91 ) was significantly higher than in females ( 15.22±1.70,P<0.0001 ).After adjustment on age,sex and BMI,intraclass correlations for uric acid were 0.70 for monozygotic twins and 0.40 for dizygotic twins.The sex-limitation AE model,combining additive genetic and unique environmental factors,could produce the best fit for the data.Heritability estimate for uric acid was 70.5% (95% CI:65.9-74.6),with the proportion of unique environmental effects as 29.5%(95%CI:25.4-34.2).Conclusion Additive genetic effects appeared to be the major contributor to the variation of uric acid in this twins sample being studied.
8.Characteristic and clinicopathologic significance of lymphangiogenesis in colorectal cancer.
Jiang-hong MOU ; Xiao-chu YAN ; Zeng-peng LI ; Dong WANG ; Guang-jie DUAN ; De-bing XIANG ; Hua-liang XIAO ; Qin-hong ZHANG
Chinese Journal of Pathology 2005;34(6):348-352
OBJECTIVETo investigate the distribution patterns and proliferative activity of lymphatic vessels in colorectal carcinomas (CRC) and their relationship with tumor metastasis and disease prognosis.
METHODSThe microlymphatic density (MLD) and microvascular density in tumoral and non-tumoral areas of 96 cases of CRC were evaluated by immunohistochemistry, using monoclonal antibodies for podoplanin and CD34 respectively. The Ki-67 expression of the lymphatic and blood vessels was detected by double-labeling immunohistochemistry. The relationship between MLD and clinicopathologic features and prognosis was analyzed.
RESULTSThe lymph vessels at central and superficia1 portions of CRC often had a reticular architecture with numerous tiny and ill-defined lumina, while those at the tumor borders had large and open lumina. The MLD at tumor borders (51.2 +/- 25.5) was significantly higher than that in normal colorectal mucosa (29.4 +/- 9.0) and other portions of CRC (P < 0.01). The Ki-67 labeling index of the lymphatic lining cells at tumor borders (0.23 +/- 0.17) was significantly higher than that in other portions of CRC (P < 0.05). The MLD significantly correlated with lymphatic involvement by tumor cells, regional lymph node metastasis and distant metastasis (P < 0.01). The 5-year survival rate was also significantly lower in patients with high MLD (P < 0.05).
CONCLUSIONSNeolymphatic vessels are commonly seen in CRC, especially at tumor borders. High MLD at tumor borders is associated with metastasis. The detection of MLD at tumor borders may thus be useful in predicting lymph node metastasis and prognosis in patients with CPC.
Adenocarcinoma ; immunology ; pathology ; physiopathology ; Adult ; Aged ; Aged, 80 and over ; Colorectal Neoplasms ; immunology ; pathology ; physiopathology ; Endothelium, Vascular ; immunology ; Female ; Follow-Up Studies ; Humans ; Ki-67 Antigen ; metabolism ; Lymphangiogenesis ; Lymphatic Metastasis ; Lymphatic Vessels ; pathology ; Male ; Middle Aged ; Prognosis ; Survival Rate
9.Colorimetric detection of norovirus genotype GII by reverse transcription loop-mediated isothermal amplification.
Jian-Ming LUO ; Xi-Yang WU ; Zi-Qian XU ; Le LUO ; Kai NIE ; Meng-Jie YANG ; Ya-Lan ZENG ; Zhao-Jun DUAN ; Xue-Jun MA
Chinese Journal of Virology 2012;28(2):165-171
A simple, rapid and sensitive colorimetric reverse transcription loop-mediated isothermal amplification (RT-LAMP) method was established to detect norovirus genotype GII. The method employed a set of six specially designed primers that recognized eight distinct sequences of RNA-dependant RNA polymerase and capsid protein gene for amplification of nucleic acid under isothermal conditions at 65 degrees C for 60 minutes. The amplification process of RT-LAMP was monitored by the addition of HNB (Hydroxy naphthol blue) dye prior to amplification. A positive reaction was indicated by a color change from violet to sky blue and confirmed by agarose electrophoresis. The specificity of the RT-LAMP was validated by detecting several different diarrhea viruses including norovirus genotype GII. The sensitivity was determined by serial dilutions of RNA molecules from in vitro transcription of norovirus genotype GII in parallel with conventional RT-PCR detection. The assay was further evaluated with 93 clinical specimens of diarrhea patients. The results showed that the sensitivity of RT-LAMP was 1 000 copies/microL with a high specificity and the relative sensitivity was at the same level as that of conventional RT-PCR. Positive rate of RT-LAMP in analysis of clinical specimens was approximately the same as that of conventional RT-PCR as well. This colorimetric RT-LAMP assay was potential for rapid detection of norovirus genotype GII on spot due to the observation of visual result with high specificity and sensitivity, time-saving and cost benefit.
Caliciviridae Infections
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diagnosis
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virology
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Colorimetry
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methods
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Feces
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virology
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Genotype
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Humans
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Norovirus
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genetics
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isolation & purification
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Nucleic Acid Amplification Techniques
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methods
10.Intravitreal Conbercept therapy for choroidal neovascularization due to high myopia
Yan-Jie XIE ; Guo-Ping DUAN ; Rong HU ; Qi ZENG
International Eye Science 2018;18(3):592-595
·AIM:To evaluate the efficacy and safety of intravitreal injection of Conbercept as the treatment of choroidal neovascularization due to high myopia. ·METHODS: The study was a retrospective analytical case series. We reviewed medical records of 15 patients (16 eyes) with choroidal neovascularization second to high myopia that had enrolled in our hospital from January 2013 to December 2016. All patients have received one or more conbercept injections based on medical condition and observed the best corrected visual acuity (BCVA) and macular retinal thickness before and after the last injection. The duration of the last follow-up was from 1.5mo to 28mo. ·RESULTS:Totally 15 patients(16 eyes) were enrolled in this study. All patients received conbercept injections. Among all the patients,6 eyes were given one treatment, 7 eyes were given two treatments and 3 eyes three treatments. Before retreatment, the mean intraocular pressure was 16.44±1.39mmHg before treatment,and the average intraocular pressure was 16.75 ± 1.41mmHg after the last treatment. The difference was not statistically significant (P> 0. 05). BCVA was 1. 14 ± 0. 35 before treatment,BCVA was 0.71±0.21 at the last follow-up. The difference was statistically significant (P< 0. 05). The thickness of the macular retina was 361. 63 ± 33. 59μ m before treatment,and it was 287.25 ± 30.31μ m at the last follow-up, and the difference was statistically significant (P<0.05). And there was no case of endophthalmitis, stroke,and retinal detachment during follow-up. ·CONCLUSION: Intravitreal injection of conbercept can effectively improve the patient's BCVA in the short term and reduce the macular fovea retinal thickness. No significant adverse events are observed.