کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4158684 1273815 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel corrective pullthrough surgery in a mouse model of Hirschsprung's disease
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی پریناتولوژی (پزشکی مادر و جنین)، طب اطفال و بهداشت کودک
پیش نمایش صفحه اول مقاله
A novel corrective pullthrough surgery in a mouse model of Hirschsprung's disease
چکیده انگلیسی

Background/PurposeThe study aimed to develop a mouse model of post-pullthrough Hirschsprung's disease that will allow investigation of mechanisms that cause postoperative complications.MethodsWe developed a novel microsurgical pullthrough operation on Balb/C mice and evaluated its effect on growth rate and stooling pattern. Histologic assessment of the pullthrough colon was performed. The pullthrough operation was then performed on Ednrb−/− mice that have aganglionic megacolon and Ednrb+/+ littermate controls, and the outcomes compared.ResultsThe Balb/C pullthrough group had 97% survival at 1 week and 70% survival at 2 weeks. Body weight of the pullthrough animals declined 15% in the first week after surgery and subsequently normalized. The stooling pattern showed consistently softer stools in the pullthrough group, but no difference in frequency compared to controls. Histopathologic analyses 4 weeks postoperatively showed well-healed coloanal anastomoses. Two-week survival after pullthrough surgery in Ednrb−/− and Ednrb+/+ mice was 50.0%, and 69.2%, respectively (P = NS). Increased mortality in the Ednrb−/− mice was related to the technical challenge of performing microsurgery on smaller-sized mice with poor baseline health status.ConclusionsOur microsurgical pullthrough operation in mice is feasible and allows systematic investigations into potential mechanisms mediating post-pullthrough complications and poor long-term results in mouse models of Hirschsprung's disease.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pediatric Surgery - Volume 44, Issue 4, April 2009, Pages 759–766
نویسندگان
, , , , ,