1.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.
3.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.
4.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.
5.Partial internal sphincterectomy for the treatment of internal anal sphincter achalasia in childhood
Jiexiong FENG ; Yizhen WENG ; Guo WANG ; Mingfa WEI ; Jie HAN
Chinese Journal of General Surgery 1993;0(03):-
Objective To evaluate the long-term results of partial internal sphincterectomy for the treatment of internal anal sphincter achalasia in childhood. Methods The clinical,radiographic,manometrical and histochemical data of 6 cases were reviewed retrospectively. All patients had received partial internal sphincterectomy and were followed-up for 2 to 8 years. Results All patients presented with severe constipation with or without soiling. No stenosis zone of intestine could be noted in 3 patients by barium enema examination. The rectoanal inhibition reflex on rectal balloon inflation was absent in all patients. The normal acetylcholinesterase activity on rectal biopsies was demonstrated by histochemical staining. Ganglion cells within internal anal sphincter was noted in all cases. On follow-up,all patients regained regular bowel habits and are not on any laxatives. Conclusion The long term results of partial internal sphincterectomy for the treatment of internal anal sphincter achalasia in childhood are satisfactory.
6.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.
7.Polymorphisms and mutations of EDNRB gene in Hubei provincial patients of Han ethnicity with Hirschsprung disease
Yanfeng NIU ; Guobin WANG ; Xiaoming LU ; Shaotao TANG ; Hansong DU ; Peng YANG ; Kaixiong TAO ; Mingfa WEI
Chinese Journal of General Surgery 2001;0(09):-
Objective To analyze the relationship between polymorphisms of EDNRB gene and Hubei provincial patients of Han ethnicity with sporadic Hirschsprung disease(sHD). Methods Peripheral blood samples from 104 patients with sHD and 84 parents of 42 patients, and 120 normal children(as controls) were collected. PCR-SSCP and direct DNA sequencing were used to detect mutations and polymorphisms of exon-4 in EDNRB gene. The differences of allele frequencies and genotype distribution in polymorphic sites were further analyzed between the three groups. Allele frequencies of SNPs in forty-two sHD trios were analyzed by transmission disequilibrium test(TDT), and the association between phenotype of HD and SNPs was analyzed. Results No mutant site was detected and one polymorphic site of c831 G→A(L277L) was observed in Hubei provincial patients of Han ethnicity with sHD. The allele frequency of A(68% vs 53%) and genotype frequency of AA(49% vs 30%) were significantly higher in sHD group than that in control group(P
8.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.
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.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
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Animals
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Base Sequence
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Cell Line
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Cloning, Molecular
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methods
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Endothelial Cells
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metabolism
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Indoleamine-Pyrrole 2,3,-Dioxygenase
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genetics
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metabolism
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Molecular Sequence Data
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Sequence Alignment
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Swine