1.A case report of the onset of inflammatory bowel disease with chronic granulomatous disease
Dandan LIU ; Yafeng WANG ; Mingfa GUO ; Wei LIU
Chinese Journal of Applied Clinical Pediatrics 2021;36(8):626-628
A case with the diagnosis of the onset of inflammatory bowel disease (IBD) with chronic granulo-matous disease (CGD) in Children′s Hospital Affiliated to Zhengzhou University in June 2016 was chosen, and the patient′s clinical data and whole treatment process were analyzed.According to the relevant literature from Chinese and foreign databases, the clinical characteristics were analyzed and summarized, principles of diagnosis and treatment for children who had the onset of IBD with CGD.This patient was a child of 1 year and 9 months old, and the initial symptoms included repeated diarrhea and bloody stools.He was diagnosed as " ulcerative colitis" in the local hospital.After admission, the neutrophil respiratory burst test was positive.The genetic analysis result suggested that the CYBB gene was mutated, thus obtaining the diagnosis of CGD.Then, he was given prophylactic antibiotic therapy and symptomatic treatment.After the 3 months of follow-up after discharge, the patient still had intermittent diarrhea and bloody stools.CGD is a rare primary immunodeficiency disease, and current treatment methods of CGD include hematopoietic stem cell transplantation and anti-infection treatment.When IBD patients have complications other than gastrointestinal symptoms, the IBD treatment is not effective, or there are suspected parents who are married to close relatives, or with the family history of IBD, CGD should be considered.
2.Role and clinical significance of imbalanced Th17/CD4+CD25+ regulatory T lymphocytes in children with Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis
Dandan LIU ; Yafeng WANG ; Mingfa GUO ; Junshan LIU ; Huixia LI ; Yange LI ; Yanna MAO ; Wei LIU
Chinese Journal of Microbiology and Immunology 2017;37(9):682-687
Objective To investigate the changes in Th17 cells and CD4+CD25+regulatory T lym-phocytes ( Treg) as well as transcription factors and cytokines relating to them in children with Epstein-Barr virus (EBV)-associated hemophagocytic lymphohistiocytosis (HLH) and to analyze their role and clinical significance. Methods Thirty-two children with newly diagnosed EBV-associated HLH in the Hematology/Oncology Department of Zhengzhou Children′s Hospital from January 2012 to December 2016 were enrolled in this study. Thirty healthy children taking physical examination in the same hospital in the corresponding period were recruited as controls. Percentages of Th17 and Treg cells in peripheral blood T lymphocytes were detected by flow cytometry. Expression of RORγt and Foxp3 at mRNA level in peripheral blood mononuclear cells was detected by real-time PCR. Levels of IL-6, IL-17, IL-10 and TGF-β1 in serum samples were measured by ELISA. Results Compared with the control group, the EBV-associated HLH group showed in-creased percentage of Th17 cells [(1. 09±0. 43)% vs (0. 39±0. 19)%, P<0. 05] and enhanced expres-sion of RORγt at mRNA level [(1. 41±0. 37) vs (0. 67±0. 13), P<0. 05], but decreased percentage of Treg cells [(3. 66±1. 13)% vs (6. 80±1. 15)%, P<0. 05] and inhibited expression of Foxp3 at mRNA level [(15. 97±5. 11) vs (30. 23±4. 95), P<0. 05]. All of the above mentioned changes were reversed af-ter treatment (P<0. 05). Serum levels of IL-6 and IL-17 of EBV-associated HLH group were higher than those of control group, while serum levels of IL-10 and TGF-β1 were lower (P<0. 05). Conclusion Im-balanced Th17/Treg cells might play an important role in the pathogenesis of EBV-associated HLH. Cyto-kines relating to the maintenance of Th17/Treg cell balance could be used as indicators of disease develop-ment.
3.Relationship between Helicobacter pylori L-form infection and expression of XPF and p53 in gastric carcinoma
Chinese Journal of Clinical and Experimental Pathology 2015;(10):1089-1094
Purpose To investigate the relationship between Helicobacter pylori L-form ( Hp-L) infection and expression of XPF and p53 in gastric carcinoma. Methods XPF, p53 and Hp-L were examined in 239 cases of gastric carcinoma and healthy individuals by means of Giemsa stain and immunohistochemical staining with ABC method. Results XPF and p53 expression in gastric carcinoma was significantly higher than that of the surrounding tissue (P<0. 01). There were positive correlation between the expression of XPF and p53 (r=0. 196, P<0. 01). The expression of XPF was related to the Laurén classification (P<0. 05). The expression of p53 was associated to the depth of invasion (P<0. 05). (2) 175 (73. 22%) cases were Hp-L positive by both Giemsa and immunohisto-chemical staining. Hp-L expression in gastric carcinoma were significantly higher than that of the surrounding tissue (P<0. 01). (3) In the Hp-L positive group, XPF and p53 were significantly higher than in that of the Hp-L negative group (P<0. 01). Positive corre-lation existed between positive Hp-L staining and the expression of XPF and p53 (r=0. 32, r=0. 296, P<0. 01). (4) Univariate a-nalysis showed that depth of invasion, distant metastasis, TNM stage, XPF and p53 were related to the prognosis of gastric carcinoma ( P<0. 05). Multivariate Cox model analysis showed that XPF was an independent prognostic factor for the patients (P<0. 05). The pa-tients with positive expression of XPF had a shorter survival time. When combined with the depth of invasion and distant metastasis, the correction risk increased by 3. 791 times. Conclusion XPF, p53 and Hp-L may play very important roles in the development of gastric carcinoma. The high expression of XPF implies poorer prognosis. Hp-L infection may be related to the up-regulated expression of XPF and p53.
5.Molecular cloning and characterization of porcine indoleamine 2, 3-dioxygenase and its expression in various tissues.
Chao CHEN ; Mingfa WEI ; Lu WANG ; Ying XIANG ; Xiangning FU ; Min ZHU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2012;32(4):473-479
In order to confirm the existence of indoleamine 2, 3-dioxygenase (IDO) gene in swine, and to clone the novel gene followed by the molecule structure properties and expression pattern analysis, the porcine mRNA sequences homologous to human IDO were obtained from GenBank database by bioinformatics method. By using RT-PCR, the IDO gene was cloned from porcine endothelial cell line and the accuracy of the nucleic acid sequence was confirmed, and the expression pattern of the gene was detected. The three-dimensional structure model of porcine IDO was built referring to the tertiary structure of human IDO using biological sequence analysis software and database. The results showed that the porcine IDO was identified by sequencing. The nucleotide sequences were confirmed as a novel gene after submitted to Genbank. Porcine IDO was expressed in the lung, thymus, epididymis and anterior chamber with a basic level, however in peripheral blood mononuclear cells (PBMCs) the IDO gene was highly expressed. The three-dimensional structure model of porcine IDO was similar to that of human IDO. It was suggested that identification of the structure information of porcine IDO is essential to further investigate the immunologic function of the gene. Study of IDO on NK cells-mediated xenograft rejection will be a novel therapeutic target for the development of xenotransplantation.
Amino Acid Sequence
;
Animals
;
Base Sequence
;
Cell Line
;
Cloning, Molecular
;
methods
;
Endothelial Cells
;
metabolism
;
Indoleamine-Pyrrole 2,3,-Dioxygenase
;
genetics
;
metabolism
;
Molecular Sequence Data
;
Sequence Alignment
;
Swine
6.Molecular cloning and characterization of porcine indoleamine 2, 3-dioxygenase and its expression in various tissues.
Chao, CHEN ; Mingfa, WEI ; Lu, WANG ; Ying, XIANG ; Xiangning, FU ; Min, ZHU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2012;32(4):473-9
In order to confirm the existence of indoleamine 2, 3-dioxygenase (IDO) gene in swine, and to clone the novel gene followed by the molecule structure properties and expression pattern analysis, the porcine mRNA sequences homologous to human IDO were obtained from GenBank database by bioinformatics method. By using RT-PCR, the IDO gene was cloned from porcine endothelial cell line and the accuracy of the nucleic acid sequence was confirmed, and the expression pattern of the gene was detected. The three-dimensional structure model of porcine IDO was built referring to the tertiary structure of human IDO using biological sequence analysis software and database. The results showed that the porcine IDO was identified by sequencing. The nucleotide sequences were confirmed as a novel gene after submitted to Genbank. Porcine IDO was expressed in the lung, thymus, epididymis and anterior chamber with a basic level, however in peripheral blood mononuclear cells (PBMCs) the IDO gene was highly expressed. The three-dimensional structure model of porcine IDO was similar to that of human IDO. It was suggested that identification of the structure information of porcine IDO is essential to further investigate the immunologic function of the gene. Study of IDO on NK cells-mediated xenograft rejection will be a novel therapeutic target for the development of xenotransplantation.
7.Differentiation of GDNF and NT-3 dual gene-modified rat bone marrow mesenchymal stem cells into enteric neuron-like cells.
Heyun, GAO ; Mingfa, WEI ; Yan, WANG ; Xiaojuan, WU ; Tianqi, ZHU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2012;32(1):87-91
Bone marrow mesenchymal stem cells (BMSCs) have been shown to be multipotent cells that possess high self-replicating capacity. The purpose of our study was to investigate the feasibility of using enteric neuron-like cells obtained by in vitro induction and differentiated from rat BMSCs for the treatment of Hirschsprung's disease (HD). Glial cell-derived neurotrophic factor (GDNF) and neurotrophin-3 (NT-3) are neurotrophic factors that play important roles in neuronal development, differentiation, survival and function. Meanwhile, GDNF mutations are a major cause of HD. In this study, BMSCs were transfected with eukaryotic expression plasmids co-expressing GDNF and NT-3, and the transfected cells displayed neuron-like changes after differentiation induced by fetal gut culture medium (FGCM). Immunofluorescence assay showed positive expression of the neuronal marker NSE and the enteric neuronal markers PGP9.5, VIP and nNOS. Reverse transcription-polymerase chain reaction (RT-PCR) revealed the expression of GDNF and NT-3 in transfected BMSCs. The present study indicates that genetically modified BMSCs co-expressing GDNF and NT-3 are able to differentiate into enteric neuronal cells and express enteric nerve markers when induced by FGCM. This study provides an experimental basis for gene therapy to treat enteric nervous system-related disorders, such as HD.
8.Differentiation of GDNF and NT-3 Dual Gene-modified Rat Bone Marrow Mesenchymal Stem Cells into Enteric Neuron-like Cells
GAO HEYUN ; WEI MINGFA ; WANG YAN ; WU XIAOJUAN ; ZHU TIANQI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2012;32(1):87-91
Bone marrow mesenchymal stem cells (BMSCs) have been shown to be multipotent cells that possess high self-replicating capacity.The purpose of our study was to investigate the feasibility of using enteric neuron-like cells obtained by in vitro induction and differentiated from rat BMSCs for the treatment of Hirschsprung's disease (HD).Glial cell-derived neurotrophic factor (GDNF) and neurotrophin-3 (NT-3) are neurotrophic factors that play important roles in neuronal development,differentiation,survival and function.Meanwhile,GDNF mutations are a major cause of HD.In this study,BMSCs were transfected with eukaryotic expression plasmids co-expressing GDNF and NT-3,and the transfected cells displayed neuron-like changes after differentiation induced by fetal gut culture medium (FGCM).Immunofluorescence assay showed positive expression of the neuronal marker NSE and the enteric neuronal markers PGP9.5,VIP and nNOS.Reverse transcription-polymerase chain reaction (RT-PCR) revealed the expression of GDNF and NT-3 in transfected BMSCs.The present study indicates that genetically modified BMSCs co-expressing GDNF and NT-3 are able to differentiate into enteric neuronal cells and express enteric nerve markers when induced by FGCM.This study provides an experimental basis for gene therapy to treat enteric nervous system-related disorders,such as HD.
9.Long-term follow-up of Hirschsprung's disease patients treated by heart-shaped anastomosis operation.
Guo WANG ; Yizhen WENG ; Mingfa WEI ; Xiaoyi SUN
Chinese Journal of Surgery 2002;40(5):344-346
OBJECTIVETo summarize the experience of heart-shaped anastomosis operation in patients with Hirschsprung's disease.
METHODSHirschsprung's disease treated by heart-shaped anastomosis, improvement of surgery procedure, and complications were reviewed retrospectively.
RESULTSOf 193 cases, 152 completed follow-up. Early complications included urine retention (2 cases), enteritis (10), anastomosis stricture (1), and intestinal obstruction (2). Late complications (22 cases) included adhesive intestinal obstruction (2), constipation (5), incision hernia (2), enteritis (6), and occasionally stool stains (7). Neither infection in celiac, pelvic cavity and wound nor incontinence or death occurred in all patients.
CONCLUSIONHeart-shaped anastomosis procedure can effectively reduce the complications ceased by Hirschsprung's disease operation and is superior to other procedures.
Child ; Child, Preschool ; Female ; Follow-Up Studies ; Gastroenterostomy ; adverse effects ; methods ; Hirschsprung Disease ; surgery ; Humans ; Infant ; Infant, Newborn ; Male ; Postoperative Complications ; etiology ; Retrospective Studies
10.Anti-thrombotic, Choleretic and Anti-ulcerous Actions of Rhizoma Ligustici
Mingfa ZHANG ; Yaqin SHEN ; Ziping ZHU ; Hongwu WANG
China Pharmacy 2001;12(6):329-330
OBJECTIVE: To study the anti-thrombotic, choleretic and anti-ulcerous actions of Rhizoma Ligustici.METHODS: Experiments were carried out on conventional models of choleresis and ulceration, and on a thrombotic model of using direct current continuously to stimulate the unilateral carotid artery of anesthetic rat.RESULTS: Alcoholic extract of Rhizoma Ligustici 3g herb/kg and 10g herb/kg id or ig, increased choleresis and prolonged the time for arterial thrombosis induced by electric stimulation in rats, but did not prolonged coagulative time, PT and KPTT.The extract 5g herb/kg and 15g herb/kg ig, inhibited the formation of gastric ulcers induced by water immersion, stress, HCl and indomethacin-alcohol in mice.CONCLUSION: Rhizoma Ligustici has anti-thrombotic choleretic and anti-ulcerous actions.


Result Analysis
Print
Save
E-mail