AIM:To define the topography of mast cells and their numbers in cases of Hirschsprung's disease(HD)and non-HD,assess neural hypertrophy using imaging software and to study the relationship between mast cells and n...AIM:To define the topography of mast cells and their numbers in cases of Hirschsprung's disease(HD)and non-HD,assess neural hypertrophy using imaging software and to study the relationship between mast cells and nerve fibers.METHODS:HE stained sections of 32 cases of chronic constipation in the age group of 0-14 years were reviewed for ganglion cells.AChE staining was performed on frozen sections of colonic and rectal biopsies.Based on their findings cases were divided into HD and non-HD and mast cells stained by toluidine blue were evaluated.Image analysis by computerized software was applied to S-100 stained sections for assessment of neural hypertrophy.RESULTS:Difference between number of mast cells in HD group(mean=36.44)and in non-HD group(mean =14.79)was statistically significant.Image analysis morphometry on S-100 stained sections served as a useful adjunct.The difference between number,size,and perimeter of the nerve fibers between HD and non-HD group was statistically significant.CONCLUSION:Mast cells are significantly increased in HD and their base line values are much higher in Indian children than that reported in Western literature.Their role in HD needs further research.Morphometry of S-100 stained nerve fibers is a useful adjunct to conventional methods for diagnosis of HD.展开更多
目的探讨γ干扰素(IFN-γ)对P815小鼠肥大细胞以及小鼠髓源性肥大细胞(BMMC)表达组织蛋白酶S(CTSS)的影响。方法用(10、25、50)ng/m L IFN-γ分别刺激P815细胞及原代培养的小鼠BMMC,利用实时定量PCR、ELISA分别检测P815细胞及BMMC CTSS...目的探讨γ干扰素(IFN-γ)对P815小鼠肥大细胞以及小鼠髓源性肥大细胞(BMMC)表达组织蛋白酶S(CTSS)的影响。方法用(10、25、50)ng/m L IFN-γ分别刺激P815细胞及原代培养的小鼠BMMC,利用实时定量PCR、ELISA分别检测P815细胞及BMMC CTSS的mRNA和蛋白水平。用25 ng/m L IFN-γ处理P815细胞及小鼠BMMC,P815细胞分别处理6、12、18、24、48、72 h,BMMC分别处理12、24、48 h,重复上述检测步骤。结果 IFN-γ可增加P815细胞及BMMC CTSS的mRNA和蛋白水平,并具有一定的时间、剂量依赖关系。结论 IFN-γ可促进小鼠肥大细胞表达CTSS。展开更多
文摘AIM:To define the topography of mast cells and their numbers in cases of Hirschsprung's disease(HD)and non-HD,assess neural hypertrophy using imaging software and to study the relationship between mast cells and nerve fibers.METHODS:HE stained sections of 32 cases of chronic constipation in the age group of 0-14 years were reviewed for ganglion cells.AChE staining was performed on frozen sections of colonic and rectal biopsies.Based on their findings cases were divided into HD and non-HD and mast cells stained by toluidine blue were evaluated.Image analysis by computerized software was applied to S-100 stained sections for assessment of neural hypertrophy.RESULTS:Difference between number of mast cells in HD group(mean=36.44)and in non-HD group(mean =14.79)was statistically significant.Image analysis morphometry on S-100 stained sections served as a useful adjunct.The difference between number,size,and perimeter of the nerve fibers between HD and non-HD group was statistically significant.CONCLUSION:Mast cells are significantly increased in HD and their base line values are much higher in Indian children than that reported in Western literature.Their role in HD needs further research.Morphometry of S-100 stained nerve fibers is a useful adjunct to conventional methods for diagnosis of HD.
