高原牦牛肺肥大细胞的研究

Study on the Pulmonary mast cells of Plateau Yaks

对生活在青藏高原（海拔高度４２００ｍ左右）成年牦牛肺肥大细胞的形态，细胞大小及单位面积内肺泡隔中肥大细胞的数量等进行了研究。结果表明：约有８４％肥大细胞胞核圆形，细胞核居中或偏心位置，约有１５％肥大细胞胞核呈双叶形，肥大细胞直径６－９μｍ，在１．１５ｍｍ２中有０～８个肥大细胞。

The histological character of pulmonary mast cells in Yaks hasnot been reported. We chose 6 healthy adult Yaks which lived at 4 200 m above sea level and observed , by histological method ,the size , number andshape of the mast cells in the alveoli septum. In 84 % of the mast cells , the nuclei were round and located central or eccentric. The other 16% of the mast cells showed nuclei with a bifoliate shape. The diameter ofthe mast cells ranged from 6- 12 μm. The mast cells were found in thealveolar septum , lamina propria and adventitia of all levels of thebronchi and pulmonica tunica adventitia. There were 0-8 mast cells per1. 156mm2 in the alveolar septum.