Objective:To summarize and analyze the disease characteristics of the patients in Chinese Level-II Hospital for UN Peacekeepers in Liberia,for offering some references to the pre-mission training of the successive contingents as well as the improvement of medical support to the peacekeeping mission.Methods:A statistical analysis was made of the case history of all the outpatients and inpatients received in Chinese Level-Ⅱ Hospital for UN Peacekeepers in Liberia from May 2004 to December 2005. Results:Out of the total of 7107 outpatients,2539(35.7%) were medical cases,1205(17.0%) surgical,1136(16.0%) dental,787(11.1%) dermatological and 763(10.7%) contagious cases.Malaria was the main type of contagious disease,which accounted for 86.1% of all the contagious cases.There were 39 cases of AIDS/HIV(acquired immunodeficiency syndrome / human immunodeficiency virus).Of the 453 inpatients,233(51.4%) were contagious and 166(36.7%) medical cases,and 185(40.8%) of the total number suffered from malaria.The average hospital stay was 5.2 days.Conclusion:Adequate drugs and equipments should be prepared for both common and special diseases in the peacekeeping mission area.During the pre-mission training at home,special emphasis should be laid on the prevention and treatment of common diseases and frequently occurring diseases,particularly on the diagnosis of and protection against AIDS.

Objective To evaluate the reproducibility and agreement in the measurement of liver volume with multi-slice spiral computed tomography(CT).Methods Spiral CT was performed in 20 cases(14 healthy volunteers and 6 patients with cirrhosis).Images were transferred to a workstation,and volumes were measured by three observers with 5-year abdominal CT experience.Each observer performed the measurements in all subjects twice.Intra-observer and inter-observer variability was calculated using analysis of variance of the repeatedly measured results.The agreement was analyzed with the intra-class correlation coefficient(ICC).Reliability analysis in inter-observer was performed with Cronbach's alpha coefficient.Results Data measured by Observer A were(1 265.53?421.43)cm3 and(1 272.30?414.73)cm3 [difference:(0.80?2.20)%,P=0.15,ICC=0.998 8],Observer B(1 299.97?403.48)cm3 and(1 310.23?404.04)cm3 [difference:(0.90?1.90)%,P=0.07,ICC=0.998 3],Observer C(1 282.18?425.91)cm3 and(1 289.73?424.66)cm3 [difference:(0.70?2.60)%,P=0.19,ICC=0.998 3],respectively.The mean liver volumes by the three observers were(1 268.91?418.07)cm3,(1 305.10?403.59)cm3,and(1 285.97?425.10)cm3,respectively(P=0.07,ICC=0.986 9,Cronbach's alpha coefficient=0.995 6).Conclusion High reproducibility and agreement in the measurement of liver volume can be achieved with multi-slice spiral CT.

Objective To overcome the disadvantages of the traditional auscultating method and design the electro-auscultating visual system integrating the monitoring and recording functions.Methods The portable system consisted of the module pre-gathering and electro-auscultating heart-sound signal,the circuit of A/D converting and MCU,as well as the device of signal LCD-displaying in real-time and the USB mass storage device.Results Portable electro-auscultating system was realized,which integrated the functions of watching,monitoring and recording.Conclusion The portable system is more convenient for clinical doctors to get correct information from patients,benefiting to the clinical pathology-statistics and profound development of the related data.

Objective To evaluate the clinical value of prenatal ultrasound in the diagnosis of congenital anal atresia.Methods A retrospective analysis was studied from January 2013 to December 2015 which analyzed abnormal sonographic features by prenatal ultrasound screening in 13 cases of anal atresia.Results 13 cases of anal atresia were confirmed after abortion,miscarriage or birth which were not probed target ring signby prenatal ultrasound screening.That included 2 simple atresia cases and 11 cases associated with other malformations and abnormalities including 8 cases with bowel dilatation and 3 cases with intestine visible echogenic meconium. Conclusion Prenatal ultrasound screening for fetal congenital anal atresia can be detected.But for lacking of specific diagnostic standard,the detection rate of anal atresia remains very low.

Objective To investigate the clinical characteristics of patients suffering from autoimmune hemolytic anemia(AIHA) associated with acute kidney injury (AKI).Methods The clinical data of 2 case patients with AIHA and AKI in the People's Hospital of Huadu District of Guangzhou was analyzed and associated literatures were reviewed.Results Two patients presented with severe anemia,raised reticulocyte count,positive Coomb's test,and acute renal failure.They were no effect therapy when treatment with agent of erythropoietin (EPO),iron or folic acid.The level of serum indirect bilirubin was at normal range.Liver function and serum LDH were normal too.However,treatment with corticosteroids was effective.Conclusion When patients suffering AKI occur worsening anemia,AIHA probably should be concerned.Treatment with corticosteroids early is effective.

This paper proposes a one-way micro valve with a simple structure and a simulation design for the engineering capsule. We have now got its design parameter selection method and its mechanic characteristic from experiments.
Capsules ; Computer Simulation ; Drug Delivery Systems ; methods ; Equipment Design ; Infusion Pumps, Implantable ; Technology, Pharmaceutical ; instrumentation ; methods

Objective To explore the distribution of prenatal indications , clinical features and pregnant outcomes of chromosomal unbalanced reciprocal translocations atthe second trimester. Methods The data on 35 fetuses with unbalanced reciprocal translocations between May 2011 and March 2016 were retrospectively analyzed and reviewed. Results Of 35 fetuses with unbalanced translocations , 29 (82.86%) showed ultrasound abnormalities,and 6 (17.14%) had no significant clinical features. 8 were de novo, and the other 27 were parental inherited. All the 35 women had to terminate the pregnancy. Conclusions Ultrasound abnormalities are associated with chromosomal unbalanced reciprocal translocations at the second trimester , and most unbalanced translocations fetuses origin from parental carrier of balanced translocations.

Hypermethylation of the promoter region is one of the major mechanism of tumor suppressor gene inactivation. In order to provide a research tool for the study on the function of MBD1 gene in DNA methylation and tumorigenesis, antisense MBD1 gene eukaryotic expression plasmid was constructed and transfected into human biliary tract carcinoma cell line QBC-939 to observe its effect on the expression of MBD1 mRNA and protein by using RT-PCR and FCM respectively. Following the transfection, the mRNA level of MBD1 gene decreased from 0. 912 +/- 0.022 to 0.215 +/- 0. 017, and the protein level of MBD1 gene also decreased from (80.19 +/- 5.05) % to (35.11 +/- 4.05) %. There were very significant differences in the expression both at the transcription and post-transcription levels of MBD1 gene between non-tranfection group and the antisense MBD1 gene eukaryotic expression plasmid transfection group (P < 0.01). It was suggested that transfection with the antisense MBD1 gene eukaryotic expression plasmid can significantly reduce the expression level of MBD1 gene in QBC-939, and this study may provide a valid tool for the investigation of the function of MBD1 gene and its role in biliary tract carcinoma.
Biliary Tract Neoplasms/*metabolism ; Biliary Tract Neoplasms/pathology ; Cell Line, Tumor ; DNA Methylation ; DNA-Binding Proteins/*biosynthesis ; DNA-Binding Proteins/genetics ; Eukaryotic Cells/metabolism ; Gene Expression Regulation, Neoplastic ; Genetic Vectors ; Oligonucleotides, Antisense/*genetics ; Plasmids/genetics ; Transcription Factors/*biosynthesis ; Transcription Factors/genetics ; Transfection

Hypermethylation in the promoter region is an important epigenetic mechanism for the transcriptional repression of a number of cancer-associated genes, and over-expression and/or increased activity of DNA methyltransferases are considered to be the main cause of promoter hypermethylation. In order to explore the roles of two methyltransferase members (DNMT1 and DNMT3b) in the cholangiocarcinoma tumorigenesis, antisense eukaryotic expression plasmid of DNMT1 and DNMT3b gene was constructed respectively, and were co-transfected into the human cholangiocarcinoma cell line QBC-939 to observe their biological effects on the cell growth and proliferation ability, apoptosis, cell cycle alteration, and the tumorigenesis ability in the subcutaneous tissue of nude mouse. The results demonstrated that co-transfection with antisense eukaryotic expression plasmid of DNMT1 and DNMT3b gene and single transfection with antisense eukaryotic expression plasmid of DNMT1 gene can suppress the growth and proliferation of QBC-939, block the cell cycle at G1 phase, increase the apoptosis rate, minimize the tumor size in the subcutaneous tissue of nude mouse. The suppressing biological effect of co-transfection is stronger than single transfection with antisense DNMT1. Meanwhile, single transfection with antisense eukaryotic expression plasmid of DNMT3b gene has no effects on the biological characteristics of QBC-939. This study suggests that DNMT1 gene plays a key role in DNA methylation and DNMT3b gene may act as an accessory to support its function in inactivation of tumor suppressor genes. Combination DNMT1 and DNMT3b will increase their biological effects and have the synergistic effect on suppressing the growth of human cholangiocarcinoma cell line QBC-939.
Apoptosis ; Biliary Tract Neoplasms/*metabolism ; Cell Line, Tumor ; Cell Proliferation ; Cholangiocarcinoma/*metabolism ; DNA (Cytosine-5-)-Methyltransferase/*biosynthesis ; DNA (Cytosine-5-)-Methyltransferase/genetics ; Down-Regulation ; Gene Expression Regulation, Neoplastic ; Genetic Vectors ; Mice, Nude ; Neoplasm Transplantation

China ; Dental Casting Technique ; Titanium