alveolar duct

The expression of HCY-2 in motor neurons of anterior crus in spinal cord was fierce. Simultaneously HCY-2 fiercely expressed in epithelium from small bronchial to alveolar duct and type ⅱ alveolar cells.

脊髓前脚运动神经元和中央管室管膜细胞、肺内小支气管至肺泡管上皮及肺泡Ⅱ型细胞HCY2均高表达；

RESULTS: Histochemically, in normal rats, the NOS positive staining was found in epithelial cells of respiratory duct including bronchi, alveolar duct as well as in endothelium of pulmonary vessels, and the negative staining was found in pneumonocytes.

结果：组织学上显示，对照组大鼠呼吸道包括支气管、细支气管、终末细支气管、肺泡管的上皮细胞和血管内皮细胞NOS表达均阳性，肺泡上皮细胞NOS表达阴性；

however, the nos activities in epithelial cells of bronchi, alveolar duct and sac, in hypoxic rats were not affected.

缺氧对支气管、肺泡管和肺泡囊上皮细胞NOS的活性无明显影响。