Rautalahti M, Terho E O, Ojanen T
National Public Health Institute, Helsinki, Finland.
Ann Allergy. 1990 May;64(5):455-8.
We investigated the effects of exposure to biologic dust on IgG antibody levels of farmers during the indoor feeding season for cattle. The reference group consisted of 90 healthy, nonsmoking teachers. At the beginning of the indoor feeding season, the mean titer of IgG antibodies to A. umbrosus for the farmers was significantly higher than that for the teachers (P less than .001). During the indoor feeding season, the IgG antibody titer of A. umbrosus but not the titers of the other three studied microbes decreased for the farmers. For the teachers, titers of all four microbes decreased. The study confirmed earlier findings that, in Finland, exposure to A. umbrosus is related to cattle raising. The study also shows that during the indoor feeding season for cattle, the quality of hay and bedding materials is reflected in the serum antibody profile of even healthy dairy farmers.
我们调查了在牛的室内饲养季节，接触生物性粉尘对农民IgG抗体水平的影响。对照组由90名健康、不吸烟的教师组成。在室内饲养季节开始时，农民针对荫虱曲霉的IgG抗体平均滴度显著高于教师（P小于0.001）。在室内饲养季节期间，农民针对荫虱曲霉的IgG抗体滴度下降，但其他三种研究微生物的滴度未下降。对于教师而言，所有四种微生物的滴度均下降。该研究证实了早期的发现，即在芬兰，接触荫虱曲霉与养牛有关。该研究还表明，在牛的室内饲养季节，即使是健康的奶农，其血清抗体谱也能反映干草和垫料的质量。
