目的:通过对哮喘大鼠肺、大肠黏膜中CD4+、CD8+淋巴细胞的测定,揭示"肺与大肠相表里"理论的物质基础及科学内涵。方法:采用免疫组化染色方法观察两个部位CD4+、CD8+淋巴细胞的变化。结果:(1)哮喘组大鼠的肺、大肠中CD4+、CD8+的表达均明显高于正常组,有统计学差异(P〈0.05);2)正常组大鼠肺、大肠中CD4+、CD8+的表达无明显差异(P〉0.05);(3)在正常组,CD4+在肺、肠组织中的表达呈负相关性,有统计学差异(P〈0.05);CD8+在肺、肠组织中的表达无相关。在哮喘组CD4+在肺、肠组织中的表达呈负相关性,有统计学差异(P〈0.05);CD8+在肺、肠组织中的表达无相关性。结论:(1)发现在哮喘组大鼠的肺、大肠中CD4+、CD8+的表达明显增高,它们可能参与了哮喘的发病;(2)两组大鼠CD4+在肺、肠组织中的表达均呈负相关性;(3)CD4+、CD8+T淋巴细胞可能是"肺与大肠相表里"理论之间的部分物质联系。
Objective:Through the research of the CD4+ and CD8+ lymphocytes in lung and large intestine of asthma rats,the interior-exterior relation between lung and large intestine was revealed and the material basis of the theory and scientific content were proviede.Methods:Immunohistochemical staining was used to observe two parts of the CD4+ and CD8+ lymphocyte changes.Results:(1)CD4 and CD+8 expressions in lung and large intestine of asthma group rats were significantly higher than those of the normal group,with a statistically significant difference(P0.05).(2)CD+4 and CD+8 expressions in lung and large intestine of normal group rats had no significant difference(P0.05).(3)In the normal group,CD4+ expressions in the lung and intestinal tissues were negatively correlated,with a statistically significant difference(P0.05);CD+8 expressions in the lung and intestinal tissues had no correlation.CD+4 expressions in the asthmatic lung and intestinal tissues were negatively correlated,with a statistically significant difference(P0.05);CD+8 expressions in the lung and intestinal tissues had no correlation.Conclusion:(1)Through the research,we find that CD+4 and CD+8 expressions in lung and large intestine of asthmatic rats could be significantly increased,they may be involved in asthma.(2)CD+4 and CD+8 T lymphocytes may be the material contact of the interior-exterior relation between lung and large intestine.