检索结果-南通市图书馆

Low trypsinogen-1 expression in pediatric ulcerative colitis patients who undergo surgery

World Journal of Gastroenterology 2013年第21期19卷 3272-3280页

作者： maija piekkala Jaana Hagstrm Maarit Tanskanen Risto Rintala Caj Haglund Kaija-Leena Kolho Children's Hospital University of HelsinkiFIN-00029 HUSHelsinkiFinland Department of Pathology Haartman InstituteUniversity of HelsinkiFIN-00029 HUS HelsinkiFinland Department of Surgery Helsinki University Central HospitalFIN-00029 HUS HelsinkiFinland

AIM: To investigate whether matrix metalloproteinases-9 (MMP-9) or trypsinogens could serve as histological markers for an aggressive disease course in pediatric ulcerative colitis (UC). METHODS: We identified 24 patients with pediatric onset (≤ 16 years) UC who had undergone surgery during childhood/adolescence a median of 2.1 years (range 0.1-7.4 years) after the diagnosis (between 1990 and 2008) in Children's Hospital, Helsinki, Finland. We also identified 27 conservatively treated UC patients and matched them based on their age at the time of diagnosis and follow-up at a median of 6 years (range 3-11 years) to serve as disease controls. Twenty children for whom inflammatory bowel disease (IBD) had been excluded as a result of endoscopy served as non-IBD controls. Colon biopsies taken by diagnostic endoscopy before the onset of therapy were stained using immunohistochemistry to study the expression of MMP-9, trypsinogen-1 (Tryp-1), Tryp-2, and a trypsin inhibitor (TATI). The profiles of these proteases and inhibitor at diagnosis were compared between the surgery group, the conservatively treated UC patients and the non-IBD controls. RESULTS: The proportions of Tryp-1 and Tryp-2 positive samples in the colon epithelium and in the inflammatory cells of the colon stroma were comparable between the studied groups at diagnosis. Interestingly, the immunopositivity of Tryp-1 (median 1; range 0-3) was significantly lower in the epithelium of the colon in the pediatric UC patients undergoing surgery when compared to that of the conservatively treated UC patients (median 2; range 0-3; P = 0.03) and non-IBD controls (median 2; range 0-3; P = 0.04). For Tryp-2, there was no such difference. In the inflammatory cells of the colon stroma, the immunopositivities of Tryp-1 and Tryp-2 were comparable between the studied groups at diagnosis. Also, the proportion of samples positive for TATI, as well as the immunopositivity, was comparable between the studied groups in the colon ep

关键词： Children Ulcerative colitis Inflammatory bowel disease Matrix metalloproteinase-9 resection Trypsin inhibitor

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Matrix metalloproteinases in the restorative proctocolectomy pouch of pediatric ulcerative colitis

引用

World Journal of Gastroenterology 2012年第30期18卷 4028-4036页

作者： Laura Mkitalo maija piekkala Merja Ashorn Mikko Pakarinen Antti Koivusalo Riitta Karikoski Johanna Natunen Ulpu Saarialho-Kere Risto Rintala Kaija-Leena Kolho Hospital for Children and Adolescents Helsinki University Central HospitalUniversity of HelsinkiFIN-00029 HelsinkiFinland Department of Pediatrics Tampere University HospitalTeiskontie 3533521 TampereFinland Department of Pathology HUSLABHelsinki University Central HospitalHaartmaninkatu 3FI-00029 HelsinkiFinland Department of Clinical Science and Education and Section of Dermatology Karolinska Institutet at Stockholm Sder Hospital11883 StockholmSweden

AIM:To investigate matrix metalloproteinases(MMPs) and their tissue inhibitors(TIMPs) in pouch mucosa of pediatric onset ulcerative colitis(UC).METHODS:In this cross-sectional study,28 patients with pediatric onset UC underwent ileal pouch biopsy 13 years(median) after *** of MMPs-3,-7,-8,-9,-12 and-26 and TIMPs-1,-2 and-3 in samples was examined using immunohistochemichal methods,and another biopsy was used to evaluate the grade of histological *** investigators independently graded the immunohistochemical specimens in a semiquantitative fashion,using a scale marking staining intensity as follows:0 = less than 20 positive cells;1 = 20-50 positive cells;2 = 50-200 positive cells;3 = over 20 positive *** calprotectin and blood inflammatory markers [serum C-reactive protein(CRP) and erythrocyte sedimentation rate] were determined during a follow-up visit to examine correlations between these markers and the expression of MMPs and ***:Of the 28 patients with pediatric onset UC,nine had not experienced pouchitis,whereas thirteen reported a single episode,and six had recurrent pouchitis(≥ 4 episodes).At the time of the study,six patients required *** all of the others,the most recent episode of pouchitis had occurred over one month earlier,and none were on *** four samples depicted no sign of inflammation,and these were all from patients who had not had *** samples were too small to determine the grade of inflammation,but both had suffered pouchitis,the other *** sample depicted signs of colonic *** pouch samples showed expression of epithelial(e) and stromal(s) MMP-3(e,n = 22;s,n = 20),MMP-7(e,n = 28;s,n = 27),MMP-12(e,n = 20;s,n =24),TIMP-2(e,n = 23;s,n = 23) and MMP-3(e,n = 23;s,n = 28) but MMP-8(e,n = 0;s,n = 1),MMP-9(e,n = 0;s,n = 9) and MMP-26(e,n = 0;s,n = 3) and TIMP-1(n = 0,both) were *** samples with low grade of inflammatory activity,the epithe

关键词： Children Matrix metalloproteinase 3 Tissue inhibitor of matrix metalloproteinase 3 Matrix metalloproteinase 7 Pouchitis Ulcerative colitis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：