diffuse atrophy 中文意思是什麼
diffuse atrophy
解釋
彌漫性萎縮-
The histologic lesions were characterized by the remarkable atrophy of intestinal villi, basal vacuolation of enterocytes, increment of the crypt and the villus - to - crypt ratio had significantly decrease. compared with that of noninoculated control chicks. besides. intestinal villi become thin and flat. or cubic, also accompanied with necrosis. many villous enterocytes were detached from the lamina propria and the lamina propria contained a diffuse infiltrate of lymphocytes, plasma cells, macrophages. the characteristic ultrastructural changes observed by electronmicroscope were swelled mitochondria and dilated endo - plasticreticulum. ribosome on the surface of endo - plasticreticulum fall off and the number of ribosome within the cell decrease
動物回歸試驗中接種兩周齡spf雞， 24h后陸續發病，表現為持續性水樣腹瀉；剖檢可見病雞脫水、小腸內有大量的液體和氣泡、腸粘膜變薄；組織學變化為腸絨毛上皮壞死、脫落，絨毛平均長度減少而隱窩深度增加，固有層中淋巴細胞浸潤。其臨床癥狀及病理組織學變化與自然發病相同。
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