type i alveolar cells 中文意思是什麼
type i alveolar cells
解釋
肺泡i型細胞-
Results the major morphologic changes were as follows : histologically, alveolar inflammation and interstitial fibrosis were observed. electron microscopic findings were : 1. alveolar type i cells were degenerated 、 broken - down and desquamated, endothelial cells were swelled, with inter cellular tight junction shortened, alveolar type ii cells hyperplastic, basement membrane thinned and deformed ; 2. alveolar macrophages and interstitial macrophages were hyperplastic ; 3. mast cells were infiltrated and degranulated ; 4. electron - dense deposits were present at alveolar wall ; 5. myofibroblasts 、 fibroblasts 、 collagen and basement membrane like material were hyperplastic
電鏡觀察可見： （ 1 ） i型肺泡上皮細胞變性、崩解和脫落，內皮細胞腫脹，細胞間緊密連接短小， ii型肺泡上皮細胞增生，基底膜變薄和破壞； （ 2 ）肺泡巨噬細胞、間質巨噬細胞增多； （ 3 ）肥大細胞浸潤並見脫顆粒現象； （ 4 ）肺泡壁電子緻密物沉積； （ 5 ）肌纖維母細胞、纖維母細胞、膠原原纖維及基底膜樣物質增生。 -
We also investigated the pathological changes of mouse liver, thymus and cerebrum cortex challenged by so2 inhalation by in vivo tests. we studied the apoptotic induction on mouse spleen cells and cytotoxicity of human embryo lung fibroblasts of so2 derivatives by in vitro tests. in vivo tests of sulfur dioxide inhalation showed : ( 1 ) effects on mouse lung of so2 challenge : we found no significant apoptotic changes induced by so2 inhalation but obvious pathological changes of lung with vacuolating of osmiophilic multilamellar bodies which maybe related with the decrease of surfacant and decrease of microvillus of type ii alveolar cells ; we also found thickening of part of basement lamina between type i alveolar cells and capillary endothelium cells which may inhibit the dispersion of oxygen and contribute to lung dysfunction
二氧化硫熏氣染毒的體內實驗結果表明，在本次實驗的濃度范圍內（ 56mg m ~ 3 、 112mg m ~ 3 、 168mg m ~ 3低、中、高三個濃度） ： （ 1 ）通過透射電鏡、 dna凝膠電泳分析和流式細胞分析發現二氧化硫吸入染毒一周對小鼠肺臟沒有明顯的凋亡誘導作用，但通過透射電鏡觀察發現二氧化硫可引起肺臟明顯的超微結構改變，引起型肺泡上皮細胞板層體空泡化，微絨毛減少，線粒體緻密化或腫脹變性；肺泡血管內皮細胞和型肺泡上皮細胞之間基膜增厚，使氧氣彌散功能出現障礙，從而降低肺功能。
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