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1.
Journal of Experimental Hematology ; (6): 1577-1581, 2021.
Article in Chinese | WPRIM | ID: wpr-922298

ABSTRACT

OBJECTIVE@#To investigate the effect of enhanced autophagy in megakaryocyte to proplatelet formation in children with immune thrombocytopenia(ITP).@*METHODS@#Giemsa staining and immunofluorescence staining were used to observe megakaryocyte morphology and proplatelet formation, Western blot was used to determine the expression of cytoskeleton protein and autophagy related protein. Autophagr regulation drugs Rap or 3-MA was used to regulate autophagy of megakaryocytes.@*RESULTS@#Some vacuole-like structures was found in ITP megakaryocytes of the children, the expression of LC3II/I (ITP 1.32±0.18; Ctrl 0.49±0.16,P<0.05) and Atg5-Atg12 (ITP 0.69±0.17; Ctrl 0.12±0.08,P<0.05) was significantly higher in ITP children as compared with those in control group. The immu- nofluorescence staining showed that the cytoskeleton arrangement in megakaryocytes of ITP children was abnormal, and the phosphorylation of myosin light chain was also increased(ITP 0.74±0.09, Ctrl 0.05±0.02,P<0.05). In vitro, inducer or inhibitor of autophagy could regulate the production of proplatelet and the expression of cell cycle related protein, including CyclinD1(Veh 1.08±0.12; Rap 0.46±0.04; Rap+3-MA 0.70±0.03), CyclinD2(Veh 0.47±0.04; Rap 0.27±0.04; Rap+3-MA 0.41±0.03), P21(Veh 0.15±0.01; Rap 0.04±0.01; Rap+3-MA 0.05±0.01).@*CONCLUSION@#Enhanced autophagy is the key factor of poor proplatelet formation in megakaryocytes of ITP children.


Subject(s)
Autophagy , Blood Platelets , Humans , Megakaryocytes , Purpura, Thrombocytopenic, Idiopathic , Thrombocytopenia
2.
Article in Chinese | WPRIM | ID: wpr-873625

ABSTRACT

@#Objective    To evaluate the feasibility, safety, and short-term effect of minimally invasive ascending aorta surgery through a right anterior thoracotomy via the second intercostal incision. Methods    The clinical data of 13 patients who underwent minimally invasive ascending aorta surgery (including minimally invasive Bentall operation in 7 patients, minimally invasive Wheat operation in 2 patients, and minimally invasive ascending aorta replacement in 4 patients) through a right anterior thoracotomy via the second intercostal incision in our center from October, 2019 to September, 2020 were retrospectively analyzed. There were 12 males and 1 female at age of 19-69 (52.4±13.7) years. Results    The aortic cross-clamping time was 84.3±18.3 min. Three patients received blood transfusion, with the rate of 23.1%. The drainage volume in the first 24 hours after operation was 214.5±146.3 mL, with no redo for bleeding. The duration of mechanical ventilation was 19.0±11.3 hours and the length of intensive care unit stay was 1.8±1.3 days. The drainage tube was removed 2.5±1.0 days after operation. All the 13 patients recovered and discharged 6.4±2.0 days after operation, with no dead patients found. All patients survived with New York Heart Association (NYHA) functional classⅠandⅡduring a median follow-up of 8 months. Conclusion    Minimally invasive ascending aorta surgery through a right anterior thoracotomy via the second intercostal incision may be a safe and effective method with less injury and quick recovery.

3.
Article in Chinese | WPRIM | ID: wpr-911595

ABSTRACT

Objective:To investigate the expression of KLF11 in gastric cancer tissues and cell lines as well as its effect on proliferation and apoptosis of human gastric cancer cells BGC823.Methods:Sixty pairs gastric cancer tissues and corresponding adjacent tissues were collected. The expression of KLF11 mRNA in gastric cancer tissues and their adjacent tissues was detected by RT-PCR. The expression of KLF11 was detected in gastric cancer cells. KLF11 expression was silenced. The proliferation of cells were detected by using MTT assay. Flow cytometry was used to detect the cell cycle and cell apoptosis rate. Western bloting was used to examine the changes of concentration of proteins associated with cell cycle,cell apoptosis and Wnt/β-catenin signaling pathway related proteins. The activity of Caspase3 enzyme was detected by spectrophotometry.Results:The relative expression of KLF11 mRNA in gastric carcinoma tissues was significantly higher than that of the adjacent tissues ( t=11.38, P<0.05). Its expression was related to tumor size, depth of invasion, lymph node metastasis and TNM clinical stage (all P<0.05). The proliferation of BGC823 cells was significantly suppressed after KLF11 silencing ( F=19.56, P<0.05), and the cell cycle was arrested in G 0/G 1 phase [(41.40%±0.98%) vs. (66.53%±1.01%), F=32.69, P<0.05]. Meanwhile, the apoptosis rate was significantly increased by KFL11 silencing [(41.44%±1.59%) vs. (15.42%±0.86%), F=35.35, P<0.05]. The results of Western blotting revealed that the expression of Bax and Cleaved Caspase3 was significantly increased ( F=23.33, 33.63; both P<0.05), wheras that of β-catenin, Bcl-2, CyclinD1and CyclinE was significantly reduced ( F=22.21, 16.24, 26.75, 33.42; all P<0.05). The activity of Caspase3 enzyme was enhanced ( F=16.56, P<0.05). Conclusion:KLF11 was highly-expressed in gastric cancer tissues and cells, KFL11 silencing could inhibit gastric cancer cells proliferation and induce cell apoptosis via Wnt/β-catenin signaling pathway.

4.
Article in Chinese | WPRIM | ID: wpr-810586

ABSTRACT

Rectal cancer has become one of the most common malignant tumors in our country. The treatment of total mesorectal excision after neoadjuvant chemoradiotherapy (NCRT) has become a standard treatment mode for locally advanced rectal cancer. However, the response of patients with rectal cancer to neoadjuvant chemotherapy varies, and treating all patients with NCRT may be suboptimal. Accurately predicting the efficacy and sensitivity of NCRT can help adjust treatment plan timely and avoid delay of condition in patients who are insensitive to NCRT. Existing research has confirmed that TNM staging, tumor regression grade and tumor markers and other clinical indicators can effectively predict the efficacy and sensitivity of NCRT, all kinds of clinical guidelines also recommend the three as a routine examination of patients with rectal cancer during NCRT. However, with the proposal of the concept of "Precise Medicine", the above clinical indexes cannot meet the clinical need of accurate treatment of rectal cancer. In recent years, with the accumulating studies on tumor immunotherapy, researchers have found that the sensitivity of NCRT is not only related to tumor biological characteristics, but also closely related to tumor microenvironment. Based on the current research, the indicators of tumor microenvironment, such as lymphocyte subsets count, neutrophil-lymphocyte ratio and programmed cell death ligand 1, have great potential clinical value in predicting the efficacy and sensitivity of rectal cancer. Further research based on relevant indicators of tumor microenvironment will enable accurate prediction of NCRT efficacy and sensitivity of NCRT and has important clinical significance for the realization of accurate and individualized treatment of rectal cancer.

5.
Chinese Journal of Surgery ; (12): 294-298, 2018.
Article in Chinese | WPRIM | ID: wpr-809908

ABSTRACT

Objective@#To evaluate the impacts of an on-pump beating-heart versus an off-pump coronary artery bypass grafting (CABG) technique for surgical revascularization on the early clinical outcomes in patients with a left ventricular ejection fraction (EF) of 35% or less.@*Methods@#A total of 216 consecutive patients with an echocardiographic estimated EF of 35% or less who underwent non-emergency, primary, isolated CABG from January 2010 to December 2014 at Department of Cardiovascular Surgery, Zhongshan Hospital, Fudan University were included in this study and were divided into either an OBCAB group (patients who received on-pump beating-heart CABG surgery, n=88) or an OPCAB group (patients who received off-pump CABG surgery, n=128). The early clinical outcomes were investigated and compared. The outcomes were compared between groups by t-test, χ2 test or Fisher′s exact test, when appropriate.@*Results@#No significant differences emerged between the two groups in baseline characteristics of the entire cohort except for more patients with diabetes and a larger left ventricular endo-diastolic diameter in the OBCAB group. Patients in the OBCAB group compared to the OPCAB group had a similar in-hospital mortality (3.4% vs. 4.7%, P= 0.741). Mean EF, as measured preoperatively and early postoperatively (before discharge), significantly improved from (31.0±2.8)% to (35.6±2.9)% (t=10.61, P=0.000) in the OBCAB group and from (31.0±2.9)% to (34.8±3.3)% (t=9.68, P=0.000) in the OPCAB group, respectively. The improvement of mean LVEF in the OBCAB group was significantly higher than that in the OPCAB group ((4.7±0.2)% vs. (3.6±0.3)%, t=29.53, P=0.000). Patients in the OBCAB group compared to the OPCAB group had a significant higher early postoperative EF ((35.6±2.9)% vs.(34.8±3.3)%, t=1.892, P=0.034) but shared a similar baseline EF ((31.0±2.8)% vs. (31.0±2.9)%, t=0.012, P=0.930). Patients in the OBCAB group compared to the OPCAB group received a greater number of grafts and an increased amount of drainage during the first 24 h (3.7±0.8 vs. 2.8±0.6, t=9.442, P=0.000; (715±187) ml vs. (520±148) ml, t=8.544, P=0.000, respectively), without evidence of worse in-hospital mortality or major postoperative morbidity.@*Conclusion@#The on-pump beating-heart technique may be an acceptable alternative to the off-pump technique for surgical revascularization in patients with an estimated EF of 35% or less.

6.
Chinese Health Economics ; (12): 102-105, 2017.
Article in Chinese | WPRIM | ID: wpr-703421

ABSTRACT

Objective:To observe and analyze the effects of information intelligence technology in hospital operation decision.Methods:Relevant factors have been analyzed vertically before and after the application of information intelligence technology in Beijing Cancer Hospital.In this case,data should be analyzed before and after the usage of the information intelligence technology,in terms of medical quality (bed usage,average length of hospitalization,the number of cases,etc.),workloads (number of visits,number of discharged patients,etc.),social benefits (patient satisfaction and employee satisfaction),and economic benefits (total assets,net assets,fixed assets,business income,per capita business income,etc.).Results:Mter the implementation of information intelligence technology,bed occupancy rate and the number of discharged was higher than that before implementation,as well as average length of hospitalization was significantly lower than before.Secondly,the number of visits,discharged persons,total assets,net assets,business income and per capita business income and the satisfaction rate of patients and staff after the implementation of the information intelligence technology were significantly higher than those before.Conclusion:Information intelligence technology could improve medical process and service efficiency,as well as reduce medical disputes and doctor-patient contradiction in hospital operation decision-making.Moreover,the satisfaction of doctors and patients could be ameliorated,manpower and material resources could be saved significantly as well,and the management efficiency would be effectively improved.

7.
Chinese Circulation Journal ; (12): 869-873, 2017.
Article in Chinese | WPRIM | ID: wpr-662503

ABSTRACT

Objective:To compare the long-term prognosis of percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) in patients with ostial/shaft lesions of unprotected left main coronary artery (ULMCA).Methods:A total of 259 patients with isolated ostial/midshaft lesions of ULMCA who received PCI or CABG in our hospital from 2003-01 to 2009-07 were enrolled.The patients were divided into 2 groups:PCI group,n=149 patients who received drug-eluting stents (DES) implantation and CABG group,n=110.The end points were all cause death,myocardial infarction (MI) and major adverse cardiac and cerebrovascular events (MACCE) which included cardiac death,non-fetal MI,stroke,repeated revascularization and the composite events death.Results:The median follow-up period was 7.1 years (inter quartile range 5.3-8.2 years) in all patients.Before multivariate adjusting,the following parameters were similar between PCI group and CABG group:all cause death (12.7% vs 29.7%),P=-0.096;non-fatal MI (14.8% vs 8.5%),P=0.844;stroke (9.3% vs 6.3%),P=0.904;repeated revascularization (26.8% vs 19.0%),P=0.234;composite events of cardiac death/stroke/MI (18.9% vs 20.3%),P=0.224 and MACCE occurrence (37.5% vs 34.2%),P=0.946.With adjusted variations,the trend was similar to pre-adjustment.Conclusion:During the maximum 8.2 years follow-up period,PCI and CABG had the similar efficacy and safety in patients with ostial/shaft lesions of ULMCA.

8.
Chinese Circulation Journal ; (12): 869-873, 2017.
Article in Chinese | WPRIM | ID: wpr-660171

ABSTRACT

Objective:To compare the long-term prognosis of percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) in patients with ostial/shaft lesions of unprotected left main coronary artery (ULMCA).Methods:A total of 259 patients with isolated ostial/midshaft lesions of ULMCA who received PCI or CABG in our hospital from 2003-01 to 2009-07 were enrolled.The patients were divided into 2 groups:PCI group,n=149 patients who received drug-eluting stents (DES) implantation and CABG group,n=110.The end points were all cause death,myocardial infarction (MI) and major adverse cardiac and cerebrovascular events (MACCE) which included cardiac death,non-fetal MI,stroke,repeated revascularization and the composite events death.Results:The median follow-up period was 7.1 years (inter quartile range 5.3-8.2 years) in all patients.Before multivariate adjusting,the following parameters were similar between PCI group and CABG group:all cause death (12.7% vs 29.7%),P=-0.096;non-fatal MI (14.8% vs 8.5%),P=0.844;stroke (9.3% vs 6.3%),P=0.904;repeated revascularization (26.8% vs 19.0%),P=0.234;composite events of cardiac death/stroke/MI (18.9% vs 20.3%),P=0.224 and MACCE occurrence (37.5% vs 34.2%),P=0.946.With adjusted variations,the trend was similar to pre-adjustment.Conclusion:During the maximum 8.2 years follow-up period,PCI and CABG had the similar efficacy and safety in patients with ostial/shaft lesions of ULMCA.

9.
Journal of Clinical Pediatrics ; (12): 876-879, 2015.
Article in Chinese | WPRIM | ID: wpr-477539

ABSTRACT

ObjectiveTo explore the role of the lymphocyte subsets in the peripheral blood in diagnosis, treatment and prognosis of hemophagocytic lymphohistiocytosis (HLH) in children.MethodA total of 30 children with HLH were enrolled in this study and treated according to the HLH-2004 diagnostic guidelines. 20 children with HLH entered complete remission (CR) and 10 children with HLH died. Thirty age-matched healthy children were selected as normal controls. T cell subsets in the pe-ripheral blood were measured by lfow cytometry.ResultsCompared with control group, CD3+T and CD8+T cells were signiif-cantly increased, CD4+T and CD3-CDl6+CD56+ NK cells were signiifcantly decreased, and CD4+/CD8+ cell ratio was signiifcantly decreased in 20 CR children and 10 died children with HLH in acute phase (P0.05). In acute phase, the lymphocyte subsets were not statistically different between 20 CR children and 10 died children (P>0.05). In 20 CR children, the proportion of CD3-CD16+CD56+NK in CR phase was statistically different than that in acute phase (P<0.05).ConclusionsChildren with HLH have obvious changes in peripheral blood lymphocyte subsets and have cellular immunity disorders. Dynamic detection of the changes may help determine the therapeutic effect and prognosis of HLH.

10.
Article in Chinese | WPRIM | ID: wpr-839154

ABSTRACT

Objective: To study the relationship between α-fetoprotein (AFP) polymorphisms and peripheral AFP level in hepatocellular carcinoma (HCC) patients. Methods: Using polymerase chain reaction-ligation detection reaction (PCR-LDR) technique, we determined the polymorphisms of AFP of 335 HCC patients; the serum levels of AFP were also determined. SPSS 13. 0 softwarewas used for statistical analysis. Results: The GG genotype frequency of -205 OG of AFP gene was significantly different between patients with AFP values: ≥20 and T, intron7 A>G, 3′UTR A>G and intron2 A>G, in AFP gene. Conclusion: In HCC patients among Chinese Hnn population, the C allele and CC genotype of -205 C>G polymorphism site in AFP gene is associated with higher AFP values.

11.
Chinese Journal of Orthopaedics ; (12): 540-545, 2014.
Article in Chinese | WPRIM | ID: wpr-446703

ABSTRACT

Objective To analyze the clinical results of 360° fusion for spondylolisthesis.Methods Data of 76 patients from March 2005 to November 2012,including 26 males and 50 females with a mean age of 54.3 years were retrospectively analyzed.All patients had undergone modified 360° fusion.The clinical outcomes were evaluated by the Japanese Orthopaedic Association scores (JOA) and visual analogue scale (VAS).The fusion status and loss of correction were assessed by CT and plain radiographs.Results All patients had been successfully followed up for at least one year.Post-operative reduction rate was 96.8%,with a mean loss rate of 1.1% at six months and 0.8% at one year follow-up separately,but the difference was not significant.Postoperative percentage of slip,lumbar lordosis,intervertebral disc height and slip angle had significant differences,compared with those of the pre-operative,but the difference between one week post-operative,six months follow-up and one year follow-up were not significant.The fusion rate was 76.3% at six months follow-up and 98.7% at one year follow-up,and there were significant differences.Both JOA and VAS score at six months and one year follow-up indicated significant differences in contrast to that of preoperative.Dural injury was found in one patient,and subsidence was found in one patient.One received a second operation at 3 months after the surgery due to screw loose.Conclusions Modified 360° fusion shows great clinical outcome and fusion rate,which can be a dominant procedure for treating spondylolisthesis.

12.
Chinese Journal of Surgery ; (12): 834-838, 2013.
Article in Chinese | WPRIM | ID: wpr-301200

ABSTRACT

<p><b>OBJECTIVE</b>To analyze the effects of adipose tissue-derived stem cells (ADSCs) on the proliferation and invasion of pancreatic cancer (PaCa) cells and the the possible mechanism involved.</p><p><b>METHODS</b>ADSCs were isolated and co-cultured with PaCa cells. CCK-8 assay was used to detect the proliferation of PaCa cells. An ELISA was used to determine the concentration of stromal cell-derived factor-1 (SDF-1) in the supernatants. The proliferation of PaCa cells by SDF-1 was measured. AMD3100 regulated the co-culture of ADSCs and PaCa. The tumor growth of PaCa cells was assessed after treatment by ADSCs in vivo.</p><p><b>RESULTS</b>ADSCs can promote the proliferation and invasion of PaCa cells (proliferation: SW1990: 1.535 ± 0.153; PANC-1: 1.370 ± 0.100; the value of control was 1; invasion: SW1990: 47.0 ± 2.6 vs. 28.3 ± 1.3; PANC-1: 40.3 ± 1.8 vs. 24.3 ± 1.3; t = 4.332-9.558, P < 0.05). The expression of SDF-1 was high in ADSCs, but not in PaCa cells (69 ± 5 vs. 0 and 0, F = 389.134, P < 0.01). The promotion of SDF-1 on PaCa cells depends on the concentration. AMD3100 significantly downregulates these growth-promoting effects of ADSCs on PaCa cells. ADSCs significantly promoted the growth of SW1990 in nude mice at the 5(th) week (volume: (1295 ± 102) mm(3) vs. (967 ± 81) mm(3), t = 5.614, P < 0.05) , but not in PANC-1 cell.</p><p><b>CONCLUSION</b>ADSCs can promote the proliferation and invasion of PaCa cells, which may involve the SDF-1/CXCR4 axis.</p>


Subject(s)
Animals , Cell Line, Tumor , Cell Proliferation , Humans , Mesenchymal Stem Cells , Mice, Nude , Pancreatic Neoplasms
13.
Article in Chinese | WPRIM | ID: wpr-358647

ABSTRACT

<p><b>OBJECTIVE</b>To observe the change of erythrocyte theology in rabbits with acute renal failure (ARF).</p><p><b>METHODS</b>Thirty-eight healthy rabbits were randomly divided into control group (n = 8), model group (establishing ARF model via intramuscular injection 1% HgCl2, and divided into 12 h, 24 h, 48 h subgroups, all n = 10), the arterial blood sample was taken out through carotid artery at corresponding times after anesthetization with urethane, for detecting the indices of renal function and erythrocyte rheology.</p><p><b>RESULTS</b>The levels of urea and creatinine in plasma of model rabbits at 12 h, 24 h and 48 h were higher than those of control group, and there was a rise trend along with the time extension. The erythrocytes electrophoresis time at 12 h of model group was higher, the electrophoresis rate and migration rate of erythrocytes were lower compared with those of control group; the erythrocytes electrophoresis time at 24 h of model group was lower and the electrophoresis rate and migration rate were higher compared with those of model group at 12 h; and there were no statistical differences in erythrocytes electrophoresis indices between model group at 48 h and other groups. Meanwhile, there was a rise trend in erythrocyte sedimentation rate (ESR), K value of equation and emendation along with the time extension of ARF, but these indices only at 48 h of model group was lower significantly than that of control group. There were no statistical differences in aggregation index and deformability index of erythrocytes among groups.</p><p><b>CONCLUSION</b>During the process of ARF, the erythrocytes electrophoresis time lengthen and electrophoresis rate and migration rate decrease at early stage, and these indices gradually return to normal; the indices of ESR increase gradually.</p>


Subject(s)
Acute Kidney Injury , Blood , Animals , Erythrocyte Indices , Erythrocytes , Physiology , Hemorheology , Rabbits
14.
Journal of Experimental Hematology ; (6): 1346-1351, 2012.
Article in Chinese | WPRIM | ID: wpr-325262

ABSTRACT

This study was aimed to explore the clinical significance of monitoring level of minimal residual disease (MRD) at different time point in B-lineage childhood acute lymphoblastic leukemia (B-ALL). Two hundred and six children with B-ALL were enrolled in this study from Augest 2008 to September 2011 in our hospital. MRD levels were detected by flow cytometry at day 15, 33 and week 12 after initial chemotherapy. The event-free survival (EFS) for patients based on MRD levels measured at different stages of chemotherapy were compared by Kaplan Meier analyses. The results showed that out of 206 cases 196 cases achieved complete remission (CR) after induction therapy (CR rate 95.1%), the 1- and 3-year EFS rate were (92.7 ± 1.8)% and (78.7 ± 3.7)%, respectively, and the 3-year EFS rate was (85.6 ± 4.9)% in standard risk group, (82.1 ± 5.8)% in intermediate risk group and (58.1 ± 9.2)% in high risk group, there was significant statistical difference between above mentioned 3 groups (P < 0.001). The MRD analysis at different time points showed that the higher the MRD level, the lower the 3-year EFS rate of children with ALL, in which the 3-year EFS rate of MRD ≥ 10(-2) at day 15, MRD ≥ 10(-3) at day 33 and MRD ≥ 10(-3) at week 12 were significantly lower. The MRD ≥ 10(-3) at week 12 was proven to be an independent predictor by multivariate Cox proportional-hazards regression model. The 3-year EFS rate for patients with MRD < 10(-3) and MRD ≥ 10(-3) at week 12 were (86.3 ± 4.1)% vs (55.8 ± 9.1)% (P < 0.05); 8 relapsed among 98 cases with negative MRD (MRD < 10(-4)) at day 33, 19 relapsed among 108 cases with positive MRD at day 33 between the two groups for recurrence rate has significant difference (P < 0.05). It is concluded that dynamically monitoring MRD by multi-parameter flow cytometry can precisely evaluate treatment response, judge treatment outcome and predict relapse in childhood B-ALL. The MRD 10(-2) at day 15, MRD 10(-3) at day 33 and MRD 10(-3) at week 12 should be considered as the best cut-off. MRD ≥ 10(-3) at week 12 was proven to be an independent factor of poor prognosis.


Subject(s)
Child , Child, Preschool , Female , Flow Cytometry , Methods , Humans , Infant , Male , Neoplasm, Residual , Diagnosis , Therapeutics , Precursor Cell Lymphoblastic Leukemia-Lymphoma , Diagnosis , Therapeutics , Prognosis , Retrospective Studies
15.
Article in Chinese | WPRIM | ID: wpr-840982

ABSTRACT

Objective: To analyze the relationship between hepatitis B virus (HBV) gene mutation at 1896 in precore region with genotype and replication of HBV and the liver function of patients. Methods: HBV precore 1896 site mutation,the genotype of HBV and serum content of HBV DNA were determined by PCR in 60 patients positive of HBV DNA. Chemiluminescence miacropaticle immunoassay (CMIA) was used for detection of serum HBeAg and HBeAb. Liver function parameters were obtained by routine biochemistry method. Results: The alanine aminotransferase (ALT) level in HBV with 1896 site mutation was significantly higher than that in the wildtype virus. Site mutation at 1896 had no correlation with HBeAg, HBV genotype and HBV DNA content. HBV DNA content in patient with genotype C was significantly higher than that with genotype B(P<0.05). Conclusion: Mutation at 1896 in precore region of HBV gene is related to aggravation of hepatocyte injury. The serum content of HBV DNA is higher in genotype C than that in genotype B, indicating genotype C HBV has more active replication activity than genotype B.

16.
Chinese Medical Journal ; (24): 557-560, 2008.
Article in English | WPRIM | ID: wpr-287693

ABSTRACT

<p><b>BACKGROUND</b>Several kinds of intercellular adhesion molecules closely relate to hepatitis B. The complex of CD(2) and CD58 plays an important role in enhancing the adhesion of T lymphocytes to target cells, hyperplasia and activation of T lymphocytes. In this study, we explored the relationship between the expression of CD58 in liver tissue and chronic hepatitis B infection.</p><p><b>METHODS</b>We determined the expression of the CD58 molecule on the surface of hepatocytes by using immunohistochemistry and the levels of serum HBV DNA from patients with HBV infection and from normal controls. The biochemical parameters of hepatic function were analyzed as well.</p><p><b>RESULTS</b>CD58 expression in hepatocytes significantly increased with the severity progression of chronic HBV infection. The IOD levels (log10) of CD58 in the control, mild, moderate, and severe chronic HBV infection groups were 0, (7.20+/-4.64) x 10(3), (25.63+/-7.41) x 10(3) and (37.47+/-11.17) x 10(3) respectively (P<0.05 compared with the control group, respectively).</p><p><b>CONCLUSION</b>CD58 probably increases cell mediated immunity to eliminate hepatitis B virus and leads to damage of hepatocytes.</p>


Subject(s)
CD58 Antigens , DNA, Viral , Blood , Hepatitis B, Chronic , Allergy and Immunology , Humans , Immunohistochemistry , Liver , Allergy and Immunology , T-Lymphocytes , Physiology
17.
Article in Chinese | WPRIM | ID: wpr-270488

ABSTRACT

<p><b>OBJECTIVE</b>To probe the epidemiological trend of respiratory syncytial virus (RSV) and cellular immunological change of RSV bronchopneumonia among children in Suzhou in the past five years.</p><p><b>METHODS</b>10,205 children with acute respiratory tract infection from January 2001 to December 2005 were enrolled into the study. Nasopharyngeal aspirates were obtained from the respiratory tract by aseptic vacuum aspiration. Direct immuno-fluorescence assay was employed to detect seven kinds of virus antigens including RSV antigen. CD3, CD4, CD8, CD19, CD16 and CD56 in peripheral blood mononuclear cells of 30 patients with RSV bronchopneumonia (1.5-24.0 months old group) were analyzed by flow cytometry analysis, and 15 normal infants (1.5-24.0 months old group) were enrolled as control group.</p><p><b>RESULTS</b>The annual positive rate of RSV was 24.94%, 25.83%, 24.05%, 25.39% and 27.30% respectively from 2001 to 2005. It also found that the peak season for RSV infection was spring or winter (January to March or November to December). The positive rate of RSV was significantly higher in 1-12 months old group than that in > 12 months old group (chi2 = 97.320, P < 0.01), as well as the groups between 1-12 months old (chi2 = 7.804, P < 0.05, the highest positive rate was occurred at 3-6 months old group). The positive rate of RSV was significantly higher in boys than that in girls (chi2 = 9.693, P < 0.01). The percentages of CD3+, CD4+, CD8+ and NK (CD16 + 56)+ cells were significantly lower in RSV bronchopneumonia than those in control group (t = 3.199, P < 0.01; t = 2.215, P < 0.05; t = 2.619, P < 0.05 and t = 5.240, P < 0.01, respectively). While the percentage of CD19+ cells was significantly elevated in RSV bronchopneumonia than that in control group (t = 2.875, P < 0.01).</p><p><b>CONCLUSION</b>RSV infection is of obvious seasonal changes. The younger the patient, the higher positive rates of RSV infection is, while and the cellular immunity function is lower. The effective measures for preventing RSV infection are important, especially for the infants. Further investigation is necessary to understand the causes of the variations for RSV infections between boys and girls.</p>


Subject(s)
Adolescent , Bronchopneumonia , Epidemiology , Allergy and Immunology , Virology , Child , Child, Preschool , China , Epidemiology , Female , Humans , Infant , Infant, Newborn , Male , Respiratory Syncytial Virus Infections , Epidemiology , Allergy and Immunology , Respiratory Syncytial Viruses
18.
Article in Chinese | WPRIM | ID: wpr-638946

ABSTRACT

Objective To analyze changes of three periodical circulation systems,erythrocyte sedimentation rate and bone marrow cell morphology in children with malaria.Methods The routine tests of hematology by Sysmex KX-21 Counter, erythrocyte sedimentation rate by Westergren method and bone marrow cell morphology were analyzed. Results In 22 cases of malaria the ratio of Hb level below 110 g/L,WBC below 4?10~9/L and PLT below 100?10~9/L was 68.2%, 41.0%, and 77.3%,respectively. The ratio of children with all three parameters (Hb, WBC and PLT) abnormal was 36.4%, with two parameters abnormal was 63.6%. Ninty-five point five percent of malaria children′s erythrocyte sedimentation rate was abnormal. Fifty-nine point one percent of malaria children had hyperplasia anemia bone marrow morphology, 77.3% secondary thrombocytopenia and 54.5% with both of two bone marrow morphology.Conclusions Three periodical circulation systems of malaria children alter notably, especially in PLT and Hb. The majority has erythrocyte sedimentation rate abnormal, and bone marrow cell morphology shows hyperplasia anemia and thrombocytopenia.

19.
Article in Chinese | WPRIM | ID: wpr-683192

ABSTRACT

Objective To study the clinical value of serum cytokeratin 19 fragment (CYFRA21-1) as a biomarker in evaluating its prognosis,monitoring and follow-up of the postoperative patients with non- small cell lung cancer (NSCLC).Methods Serum CYFRA21-1 was determined by radioimmunoassay for 207 patients with NSCLC before and after surgical operation at Tongji Hospital,Shanghai.Relationship between serum CYFRA21-1 and the prognosis,recurrence and metastasis of lung cancer was analyzed retrospectively.Results The patients were followed-up for 37 months in average.Preoperative serum CYFRA21-1 was positive in 42.0% (87/207) of all the cases,48.8% (60/123) of squamous cell earcinama and 34.6% (27/78) of adenocarcinoma,with statistical significance (X~2=3.901,P

20.
Chinese Medical Journal ; (24): 2072-2076, 2005.
Article in English | WPRIM | ID: wpr-282821

ABSTRACT

<p><b>BACKGROUND</b>As one of the intercellular adhesion molecules, CD58 plays important roles in promotion of the adhesion between T cells and target cells, hyperplasia, activation of T cells and natural killer cells, and balance between Th1 and Th2. We studied the relationship between the levels of CD58 expression in peripheral blood mononuclear cells (PBMCs) and severity of HBV infection.</p><p><b>METHODS</b>The levels of CD58 mRNA in PBMCs were detected using quantitative reverse transcription PCR. The percentage of CD58 positive cells was detected by flow cytometry in patients and healthy controls.</p><p><b>RESULTS</b>The levels of CD58 mRNA and the percentage of CD58 positive cells in patients infected with HBV were significantly higher than that in the control. Based on severity of HBV infection, the patients were classified into four groups. The expression of CD58 increased significantly in an order from mild chronic, moderate chronic, severe chronic to severe hepatitis groups. The levels of CD58 mRNA and the percentage of CD58 positive cells in PBMCs from patients with HBV infection were both positively correlated with serum levels of ALT and AST.</p><p><b>CONCLUSION</b>The level of CD58 expression is related with the severity of HBV infection and the degree of liver damage.</p>


Subject(s)
Alanine Transaminase , Blood , Aspartate Aminotransferases , Blood , CD58 Antigens , Genetics , Hepatitis B , Blood , Humans , Leukocytes, Mononuclear , Metabolism , RNA, Messenger
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