1.Application of mesenchymal stem cells in hematopoietic stem cell transplantation
Journal of Leukemia & Lymphoma 2011;20(7):433-435
Mesenchymal stem cells (MSC) are non-hematopoietic, multipotent progenitor cells which can be isolated from various human adult tissues. In recent years, MSC have been shown to possess broad immunoregulatory function and tissue regeneration. This review discusses mesenchymal stem cells in hematopoietic stem cell transplantation, including disorders as diverse as acute and chronic graft-versus-host disease, graft failure, pure red cell aplasia, autoimmune thrombocytopenic purpura, hemorrhagic cystitis.
3.Analysis of related factors of pancreatic fistula after laparoscopic-assisted radical resection of distal gastric cancer
International Journal of Surgery 2021;48(3):170-174,F3
Objective:To investigate the related factors of pancreatic fistula after laparoscopic-assisted distal gastrectomy (LADG).Methods:A retrospective analysis was performed of 189 patients who underwent LADG in Beijing Friendship Hospital, Capital Medical University from June 2017 to March 2018. Twenty-seven patients with postoperative pancreatic fistula and 27 randomly selected normal patients were included in the study. The preoperative characteristics and surgical data of all patients were recorded, including body mass index, visceral fat area, past history, preoperative tumor staging, operation time and bleeding volume, etc. The related factors of postoperative pancreatic fistula were analyzed. Measurement data were expressed as mean±standard deviation ( Mean± SD), and t-test was used for comparison between groups. Chi-square test was used to compare the count data between groups. Results:The patients with high body mass index ( t=3.956, P=0.003), high visceral fat area ( t=6.161, P=0.038), long operation time ( t=2.650, P=0.024), profuse hemorrhage ( t=1.887, P=0.042), complete lymphadenectomy ( t=2.092, P=0.001) were prone to postoperative pancreatic fistula, while there was no significant difference of visceral fat area/total abdominal fat area ( χ2=1.334, P=0.324), preoperative with pulmonary diseases ( χ2=0.750, P=0.379), coronary heart disease ( χ2=0.081, P=0.500), hypertension ( χ2=0.667, P=0.239), diabetes mellitus ( χ2=2.030, P=0.127), chronic kidney disease ( χ2=0.587, P=0.352), tumor stage( χ2=1.388, P=0.500) and other factors between the two groups. Conclusions:Obesity patients and LADG patients with long operation time are more likely to have postoperative pancreatic fistula. Comprehensive preoperative assessment and prudent intraoperative operation may be one of the effective methods to avoid postoperative pancreatic fistula.
5.Observation in effect of nursing intervention on children with hepatitis C receiving Kurorinone treatment
Chinese Journal of Practical Nursing 2011;(31):39-41
Objective To observe the effect of nursing intervention on children with hepatitis C receiving Kurorinone treatment.Methods 98 cases of children patients with hepatitis C admired from February 2008 to May 2010 were randomly divided into the intervention group (50 patients)and the control group(48 patients),all patients were treated with kurorinone for 3 months (one course of treatment),besides the intervention group received additional nursing.The liver function and serum HCV-RNA changes were compared between the two groups.Results Recovery of liver function in the intervention group was significantly better,negative rate of HCV-RNA in the intervention group was significantly higher than that of the control group.Conclusions Nursing intervention can improve treatment effect of kurorinone for children with hepatitis C.
7. Expression of protein MUC1 and MUC2 in intraductal papillary mucinous neoplasms and its significance
Academic Journal of Second Military Medical University 2010;29(3):266-270
Objective: To investigate the expression of protein MUC1 and MUC2 in intraductal papillary mucinous neoplasms (IPMNs) and its significance. Methods: Immunohistochemical method (En Vision) was used to analyze the expression of protein MUC1 and MUC2 in 18 IPMNs and 9 pancreatic ductal adenocarcinomas. Results: Expression of protein MUC1 was detected in 4 of the 18 (22%) IPMNs (including 1 with pancreatic intraductal papillary-mucinous carcinoma) and all the 9 (100%) the pancreatic ductal adenocarcinomas, with the latter significantly higher than the former(P<0.01). Expression of protein MUC2 was detected in 17 of the 18 (94.4%) IPMNs and in 1 of the 9 (11.1%) pancreatic ductal adenocarcinomas, with the former significantly higher than the latter(P< 0.01). The expression levels of MUC2 were significantly different in IPMNs of different types (IPMA, IPMB, and IPMC, P<0.05). Conclusion: IPMNs have high expression of MUC2 and the expression is associated with the pathological types of IPMN. MUC1 expression may serve as a marker of malignant IPMNs and is worth further studying.
8.Effects of E 4031 on isolated cardiac function and resting Ca2+ level of myocardial cells from rats with chronic heart failure.
Chinese Journal of Applied Physiology 2014;30(4):364-367
OBJECTIVETo investigate the effects of E 4031, a sodium calcium exchanger (NCX) agonist, on the isolated cardiac function and resting Ca2+ level in myocardial cells from rats with chronic heart failure.
METHODSRats chronic heart failure model was established by abdominal aorta coarctation with; Isolated heart perfusion by Langendorff apparatus was used to detect heart function and the effects of E 4031 on haemodynamic indexes; Myocardial cells of rats in the model group were extracted quickly and co-incubated with calcium fluorescent indicator fluo3/AM and the impact of E 4031 on the fluorescence intensity in myocardial cells were evaluated by confocal microscopy.
RESULTSHeart function of rats in the model group detected by Langendorff perfusion was significantly reduced after 12 weeks, E 4031 at 10 micromol/L could improve their left ventricular developed pressure(LVDP) and systolic / diastolic maximum rate (+/- dp/dtmax). Compared with the control and sham operation groups, the resting Ca2+ fluorescence intensity of the myocardial cells of rats in model group was at a higher level and went through a process of transient rise and drop, then stably remaining at a low level after co-incubated with 10 micromol/L E 4031.
CONCLUSIONE 4031 can improve the isolated heart function of rats with chronic heart failure, which may be associated with its enhancing the activity of NCX in the myocardial cell membrane and stabilizing intracellular Ca2+ level.
Animals ; Calcium ; metabolism ; Disease Models, Animal ; Heart ; physiopathology ; Heart Failure ; metabolism ; physiopathology ; In Vitro Techniques ; Male ; Myocardium ; metabolism ; Myocytes, Cardiac ; metabolism ; Piperidines ; pharmacology ; Pyridines ; pharmacology ; Rats ; Rats, Wistar
9.Acute retroviral syndrome mimics dengue in Singapore.
Ayesha VERRALL ; Jun Hao TAN ; Sophia ARCHULETA
Annals of the Academy of Medicine, Singapore 2012;41(12):617-619
Acute Disease
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Adult
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Aged
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Dengue
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diagnosis
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Diagnosis, Differential
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HIV Infections
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diagnosis
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HIV-1
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immunology
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Humans
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Male
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Middle Aged
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Retrospective Studies
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Singapore
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Young Adult
10.Intestinal Mucosal Immune Barrier in Guinea Pig Model of Pigment Gallstone
Hao YU ; Jinzhe JUN ; Shuodong WU
Journal of China Medical University 2010;(3):187-190
Objective To explore the correlation between intestinal mucosal immune barrier and pathogenesis of pigment gallstone and its possible mechanism.Methods Eighty guinea pigs were randomly divided into control group(group CON),pigment gallstone group(group PS),and intestinal mucosal protection group(group GLN).The guinea pigs were fed with normal diet in group CON,pigment gallstonein during diet in group PS,and glutamine-supplemented diet in group GLN for 8 weeks.The guinea pig model of pigment gallstone was established.The incidence of pigment gallstone was detected.The morphology of intestinal mucosa was observed,and the numbers of CD3~+T cell,CD40~+B cell,and IgA~+ plasma cell were counted.Results The incidence of pigment gallstone was significantly higher in group PS than in groups GLN and CON(P<0.05).Compared with group CON,the intestinal wall was significant thinner and represented obvious signs of inflammation in group PS,and the numbers of CD3~+ T cell,CD40~+ B cell,and IgA~+ plasma cell significantly decreased(CD3~+ T cell,21.8±2.5 vs 11.1±3.4,P<0.01;CD 40~+B cell,12.9±2.0 vs 10.7±3.6,P<0.01;IgA~+ plasma cell,12.4±3.4 vs 10.7±3.5,P<0.01).The signs of inflammation were less severe in group GLN than in group PS.There were significant differences in the numbers of CD3~+ T cell,CD40~+ B cell,and IgA~+plasma cell between groups GLN and PS.Conclusion Intestinal barrier dysfunction,including mechanical barrier and immune barrier,is involved in the formation of pigment gallstone.Glutamine has proved to improve the function of intestinal mucosal barrier and decrease the incidence of pigment gallstone.