摘要
用郎格罕氏细胞（ＬＣ）、迟发型变态反应（ＤＴＨ）为指标，以太阳荧光灯为光源，进行亚慢性动物实验。结果表明，１／８红斑剂量（ＭＥＤ）为较安全剂量，持续照射不能引起ＬＣ数目及形态变化，仍能诱导正常的ＤＴＨ反应；而１ＭＥＤ持续照射则能引起免疫抑制，表现为ＬＣ数目减少．形态异常，不能诱导正常的ＤＴＨ反应。提示我们在医疗卫生及实际生活中，应避免此剂量的持续照射，以免发生免疫抑制。
The purpose of this exxperiment was to discuse the longterm effect at low level on immune system. A subchronic experiment was carried out to using Langerhans cell and DTH asindicators and fluorescent sunlamps as source.The resultsshow that 1 /8 MED of UVR is safety on immunology and cannot show obvious immune suppression whereas I MED ofUVR show obvious immune suppression.It show that thenumber of LC decreased and the response of DTH suppressed.It should be avoid to long term exposure to such a dose levelof UVR in daily life and in health service. The results providethe basis for establishing limitation for long term UV exposure
