2.Dose-effect relationship of donor antigenic specificity CD4~+ CD25~+ Treg cells prolonging survival of rat kidney allograft
Jian LI ; Gen-Fu ZHANG ; Chi-Bing HUANG ;
Chinese Journal of Organ Transplantation 2005;0(08):-
Objective To investigate the dose-effect relationship of donor antigenic specificity CD4~+ CD25~+ Treg cells prolonging the survival of rat kidney allograft.Methods Sixty allograft kid- ney transplantation animal models were established with SD rats as donors and Wistar rats as recipi- ents.CD4~+ CD25~+ T cells were sorted from Wistar rats'spleens by way of MACS and the phenotypes of donor antigenic specificity were induced in vitro.According to the quantities of prepared CD4~+ CD25~+ T cells injected through tail vein in kidney transplantation,models were divided into four ex- perimental groups:2?10~5(group I),5?10~5(groupⅡ),1?10~6(groupⅢ),2?10~6(groupⅣ).The models which had no injection served as control group(n=12).The survival of the transplanted kid- ney was observed.The levels of blood serum creatinine were determined and the histopathological changes in the transplanted kidney were observed at day 4,9 and 15.The results of histopathology were evaluated according to the standard of Banff Schema and the semi-quantitative scores were gained by way of Watanabe.The reaction indexes of receptor spleen cells to the donor antigens were tested by way of MTT at day 15.Results The mean survival time of transplanted kidneys was the highest in groupⅢ[(31.4?4.6)days]and lowest in the control group[(11.7?6.2)days].There was signif- icant difference between groupⅢand control group in levels of serum cre'atinine(P
3.Expression of osteopontin mRNA and OCT2 mRNA in human gastric carcinoma by tissue microarray and its significance.
Qiao-ying ZHANG ; Gen-you YAO ; Yan-ping FU ; Zhong-sheng ZHAO
Chinese Journal of Pathology 2006;35(1):42-43
Adenocarcinoma
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metabolism
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pathology
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Adenocarcinoma, Mucinous
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metabolism
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pathology
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Adenocarcinoma, Papillary
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metabolism
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pathology
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Carcinoma, Signet Ring Cell
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metabolism
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pathology
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Follow-Up Studies
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Gene Expression Regulation, Neoplastic
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Humans
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Lymphatic Metastasis
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Neoplasm Invasiveness
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Organic Cation Transport Proteins
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biosynthesis
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genetics
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Organic Cation Transporter 2
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Osteopontin
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Prognosis
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RNA, Messenger
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biosynthesis
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genetics
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Sialoglycoproteins
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biosynthesis
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genetics
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Stomach Neoplasms
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metabolism
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pathology
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Survival Rate
4.Correlation analysis of large-platelet ratio (P-LCR) and stroke in patients with atrial fibrillation
Zhansheng WANG ; Qiang FU ; Duo LI ; Gen LI ; Jinlong CAI ; Liqing XU ; Mu ZHANG ; Ji QI
The Journal of Practical Medicine 2015;(5):760-761
Objective To investigate the correlation between large platelet ratio (P-LCR) and stroke in patients with atrial fibrillation. Methods 152 consecutive patients with atrial fibrillation were selected and divided into two groups according to whether accompanying stoke or not. Clinical features of patients and blood test indicator P-LCR were analyzed by Logistic regression analysis. Results In total, 152 subjects, including 47 patients with stoke and 105 patients without stoke,were included in the study. Univariate analysis showed that the difference in age, diabetes, hypertension, lipid-lowering therapy and P-LCR between two groups was statistically significant (P < 0.05). Logistic regression analysis showed that age, diabetes and P-LCR were independent risk factors of stroke in patients with atrial fibrillation. Conclusions Age, diabetes and P-LCR are independent risk factors of stroke in patients with atrial fibrillation.
5.Analysis of clinical effects of iliolumbar fixation in treating sacrum fracture of Denis type II.
Zhe-biao CAO ; Zhao-ming YE ; Yong-jin ZHANG ; Zhao-guang MAO ; Fu-gen ZHOU
China Journal of Orthopaedics and Traumatology 2016;29(3):248-251
OBJECTIVETo evaluate the clinical effects of iliolumbar fixation for the sacrum fractures of Denis type II.
METHODSThe clinical data of 86 patients with sacrum fracture of Denis type II treated by iliolumbar fixation from January 2008 to January 2012 were retrospectively analyzed. There were 55 males and 31 females, aged from 17 to 55 years old with an average of 39.1 years. Among them, 73 cases complicated with pelvis fracture and 13 cases with acetabular fracture; 37 cases with sacral neurological symptoms and 49 cases without sacral neurological symptoms. Fracture healing time, nerve function, clinical function and complications were observed in the patients.
RESULTSIn 86 cases, 6 cases were out of followed-up and 80 cases were followed up from 24 to 71 months with an average of 36 months. The mean fracture healing time was 13 weeks (ranged, 10 to 38 weeks). According to Gibbons scoring to evaluate the neurological function, preoperative nerve rehabilitation, lower limbs feeling, lower limbs activity,bladder and rectum function,total score respectively were 0.62 +/- 0.04, 1.54 +/- 0.35, 1.12 +/- 0.18, 0.23 +/- 0.01, 3.46 +/- 0.47 and postoperative respectively were 0.82 +/- 0.12, 0.36 +/- 0.04, 0.05 +/- 0.01, 0.03 +/- 0.01, 1.25 +/- 0.22, there were statistically significant differences between preoperative and postoperative (P < 0.05). According to Majeed scoring to evaluate the clinical function, postoperative pain, standing, sitting, sexual life, work ability, total score respectively were 22.54 +/- 4.02, 27.93 +/- 5.46, 8.47 +/- 3.61, 2.54 +/- 1.33, 16.46 +/- 4.34, 81.32 +/- 8.73, 60 cases got excellent results, 17 good, 3 fair. The main complications including fracture nonunion of 5 cases,deep incision infection of 1 case, and screw prominence resulting uncomfortable of 8 cases.
CONCLUSIONIliolumbar fixation has the advantages of stable fixation, satisfactory functional rehabilitation, less complications, and is a good method in treating sacrum fracture of Denis type II.
Adolescent ; Adult ; Bone Screws ; Female ; Fracture Fixation, Internal ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Sacrum ; injuries ; surgery ; Spinal Fractures ; surgery ; Treatment Outcome ; Young Adult
6.Molecular Cloning and Sequence Analysis of Rab11 GTPase in Trichomonas vaginalis
Renli ZHANG ; Mingyan XU ; Jingjie XU ; Shitong GAO ; Dana HUANG ; Yijie GEN ; Yucai FU
Journal of Tropical Medicine 2006;6(3):267-270,283
Objective Rab11 GTPases play an essential role in regulating membrane trafficking pathways in eukaryotic cells. Nonetheless, there has been little work done on characterizing the transport machinery of Trichomonas. The aim of this study is to clone and characterize a Rab11 gene of Trichomonas vaginalis.Methods A cDNA expression library was constructed with T. vaginalis total RNA. A cDNA clone, which showed a high degree of homology with Rab proteins of different species, was isolated and sequenced. Sequence analysis was performed using BLASTP, RPS-BLAST and ClustalW programs. The genomic DNA corresponding to the cDNA sequence was amplified using PCR techniques and following by sequencing. Results cDNA with a length of 710 base pairs and an open reading frame of 636 bp was obtained. The deduced amino acid sequence from the open reading frame was found to possess 211 residuals. Sequence analysis demonstrated that this cDNA clone was homologous to the Rab11 subfamily of different species (60% identity and 79% similarity with Arabidopsis thaliana Rab11c, 58% identity and 78% similarity with human Rab11b), and that the amino acid sequence contains all the well known conserved sequence elements of Rab family. Specific Rab motifs were also detected in the deduced amino acid sequence. Phylogenetic analysis showed that its closest homologues are Rab11 proteins from other species. Sequencing of the PCR product of genomic DNA revealed that the genomic DNA sequence encompassing the putative 5'-ATG and 3'-stop codon is identical to the cDNA sequence.Conclusion A cDNA clone corresponding to the T. vaginalis Rab11 gene was obtained.The function of this gene in regulating membrane trafficking pathways of the parasitic protist is still under investigation.
7.The protective effect of high density lipoprotein on the cardiac function of rats with severe burns.
Qing-yi ZHENG ; An-gen HU ; Shao-fu CAI ; Jing-he CHEN ; Min-feng ZHANG ; Yang-gen ZHANG
Chinese Journal of Burns 2005;21(6):442-444
OBJECTIVETo investigate the protective effect of high density lipoprotein on the cardiac function of rats with severe burns.
METHODSOne hundred and thirty-five Wistar rats were employed in the study and were randomly divided into control (n = 15, without treatment), burn (n = 60, with 30% TBSA full-thickness burn on the back) and experimental (n = 60, with the injection of HDL (80 mg/kg) via the caudal vein immediately after burns) groups. The rats in the groups with burn injury were resuscitated with intraperitoneal isotonic saline (50 ml/kg) 30 minutes after burn (PBM). The serum contents of CK, ICAM-1 and TNF-alpha of the rats of all the three groups were determined with corresponding methods. The histological changes in the cardiac muscle tissue of the rats in all groups were observed under light microscope and electronic microscope.
RESULTSThe serum contents of CK, ICAM-1 and TNF-alpha in the control group were obviously lower than those in burn group (P < 0.01), while those in experimental group were also markedly lower than those in control group (P < 0.05 or 0.01). The average reduction rate was 36.5%, 32.0% and 12.6%, respectively. The size and the structure of the cardiac muscular fiber in the control group were even and normal. Compared with the burn group, degeneration, inflammatory infiltration and mitochondrial swelling were found to be less marked in the experimental group at 48 PBH, and no focal lysis and necrosis were found, which were observed in the burn group.
CONCLUSIONHigh density lipoprotein can be beneficial to the protection of cardiac tissue in protecting from secondary injury in rats with severe burns.
Animals ; Burns ; blood ; physiopathology ; Creatine Kinase ; blood ; Intercellular Adhesion Molecule-1 ; blood ; Lipoproteins, HDL ; blood ; Myocardium ; cytology ; metabolism ; Rats ; Rats, Wistar ; Tumor Necrosis Factor-alpha ; metabolism
8.Development and applications of a gastrointestinal monitoring microsystem based on the smart capsule.
Wen-qiang ZHANG ; Guo-Zheng YAN ; Gen-Fu ZHANG
Chinese Journal of Medical Instrumentation 2006;30(5):366-368
A newly-developed gastrointestinal (GI) monitoring system based on a smart capsule is presented in the paper. The unprecedented 130-200 hours battery life and smaller size (10 mm x 20 mm) allows the physician to get total pan-colonic measurements of high-amplitude propagating contractions (HAPCs). To test the in vivo performance of the monitoring system, 15 healthy volunteers and 10 patients with slow transportation constipation (STC) participate in this study. The average of HAPCs occurred in patients is significantly lower than in volunteers (12.4 +/- 3.3 vs. 18.5 +/- 3.7 p = 0.013). The system provides a useful tool for STC diagnosis and treatments of patients.
Adult
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Colon
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physiology
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Constipation
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diagnosis
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physiopathology
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Diagnostic Techniques, Digestive System
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instrumentation
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Equipment Design
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Humans
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Manometry
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instrumentation
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Middle Aged
9.Short-term curative effect of electroacupuncture as an adjunctive treatment on schizophrenia.
Yao FENG-JU ; Sun FU-GEN ; Zhang ZHI-HUA
Chinese Journal of Integrated Traditional and Western Medicine 2006;26(3):253-255
OBJECTIVETo compare the short-term curative effect of clozapine (CZ) and its combination with electroacupuncture (EA) in treating schizophrenia.
METHODSNinety schizophrenia patients were randomly divided into two groups equally: the EA group treated with combination of CZ (200 - 300 mg/d in mean) and EA, and the CZ group treated with CZ alone. The effects of treatment were evaluated with PANSS, CGI and TESS before and at the 2th, 4th, 6th and 8th weekend of the treatment.
RESULTSThe initiation of effect in the two groups was the same, the total effective rate was 75% in the EA group and 73% in the CZ group. However, somatic complaint was lower and compliance was higher in the EA group than that in the CZ group respectively.
CONCLUSIONWith the effect equal to CZ, combination of CZ and EA shows higher compliance in treating schizophrenia, which would be beneficial in the later stage treatment for consolidation.
Acupuncture Therapy ; Adolescent ; Adult ; Clozapine ; adverse effects ; therapeutic use ; Combined Modality Therapy ; Electroacupuncture ; Female ; Humans ; Male ; Middle Aged ; Schizophrenia ; therapy
10.The protective effect of high density lipoprotein on the lung function of rats with severe burns.
Qing-yi ZHENG ; An-gen HU ; Min-feng ZHANG ; Jin-he CHEN ; Shao-fu CAI ; Jian-sheng ZHENG ; Yang-gen ZHANG
Chinese Journal of Burns 2007;23(4):249-252
OBJECTIVETo explore the protective effect of high density lipoprotein on the lung function of rats with severe burns.
METHODSOne hundred and thirty-five Wistar rats were employed in the study and were randomly divided into control (n = 15, without injury), burn (n = 60, with 30% TBSA full-thickness burn on the back) and experimental [(n = 60, with the injection of HDL (80 mg/kg) via the caudal vein immediately after burns)] groups. The rats in the latter two groups were resuscitated with intraperitoneal isotonic saline (50 ml/kg) 30 minutes after burns. The serum content of ICAM-1 and TNF-alpha as well as the blood content of PCO2 and PO2 of the rats in burn and experimental groups were determined at 12, 24, 48 and 72 post-burn hours (PBH) and in control group. The pathological changes in the lung tissue of the rats in all groups were observed under light microscope and electronic microscope at 48 PBH.
RESULTSPCO2 and the contents of ICAM-1 and TNF-alpha in burn group were significantly higher, but the PO2 was lower than those in control group at each time-point (P < 0.05 or P < 0.01). There were no obvious differences in the above indices between the experimental and control groups (P > 0.05), but the ICAM-1 and TNF-alpha levels in experimental group were markedly decreased than those in burn group at each time-point (P < 0.05 or P < 0.01). The ICAM-1 and TNF-alpha contents in burn group at 48 PBH were (3.42 +/- 0.25) microg/L and (4. 04 +/- 0.28) ng/L, respectively, which were markedly higher than those in experimental group [(2.24 +/- 0.14) microg/L, (3.35 +/- 0.22) ng/L, P < 0.05 or P < 0.01]. Dilation of capillaries, congestion and inflammatory infiltration in the pulmonary capillaries, and loosening of conjunction between pulmonary capillary vascular endothelial cells and endothelial swelling were observed in burn group at 48 PBH. Compared with the burn group, the injury was markedly alleviated in the experiment group, and the pulmonary capillary endothelial cells showed tighter junction.
CONCLUSIONHDL exhibits a protective effect on the lung function of rats with severe burns via reducing the expression of ICAM-1 and TNF-alpha.
Animals ; Blood Gas Analysis ; Burns ; blood ; pathology ; physiopathology ; Intercellular Adhesion Molecule-1 ; blood ; Lipoproteins, HDL ; pharmacology ; Lung ; drug effects ; pathology ; Random Allocation ; Rats ; Rats, Wistar ; Tumor Necrosis Factor-alpha ; blood