【摘要】 用单克隆抗体测定了移居高原的老年人重返平原后的T细胞亚群的变化结果:①移居西宁（2260m）组、天峻（3000m）组在西宁所测的OKT₃、OKT₄、OKT₈及OKT₄/OKT₈值与在苏州所测的当地老年人无差异。②移居西宁组急返平原后OKT₃、OKT₈水平明显低于返回平原后居住一年以上者（以下简称返回组）（P<0.01～0.001）但OKT₄/OKT₈无差异。③返回组与世居苏州老年人相比,前者OKT₃、OKT₄、OKT₈及OKT₄。OKT₈增高,其中OKT₃、OKT₄增高明显（P<0.01～0.02）,作者认为长期移居高原返回平原后T细胞亚群也可能存在一“脱适应”阶段,即机体重新调整重新平衡的一种形式,这一阶段可能需一年以上。更多还原

【Abstract】 T—lymphocyte subgroups were measured in the old persons at high altitude and persons returning to lowland alter living at high altitude for a long—term. The results showed that: （1） The value of OKT₃, OKT₄, OKT₈ and OKT₄/OKT₈ in persons who lived in Xinging（2260m）, Tianjung（3460m） and Suzhou （sea level） were no significant difference. （2） The value of OKT₃ and OKTs in persons returning to Suzhou for several days was obviously lower than that in persons returning there for over one year （P<0. 01—0. 001）,but the value of OKT₄/OKT₈ was not different between two groups. （3） Comparing persona returning to Suzhou with persons who lived in Suzhou, the value of OKT₃, OKT₄, OKT₈ and OKT₄/OKT₈ in the former were higher than that in the latter, especially OKT₃ and OKT₄（P<0. 01—0. 02）. The author thought T—lymphocyte subgroups of persons who returned to lowland after living at high altitude for a long term might be concerned in "deacclimation" that body adjusted and balanced again in order to adapt to new environment. The period of adaptation might need over one year.更多还原