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    ABSTRACT: Experimental uveitis is one of the main models in the diseases of autoimmunological background. The purpose of this paper was to analyze the quantitative histological changes in the experimental uveitis, induced by different types of homogenous endotoxin salts of Havnia alvei. We studied 74 eyes of Lewis rats (males) divided into 4 groups. Each group received a homogenous salt of Havnia alvei in a single subcutaneous injection. In the 1 group-LPS Ca++, in 2 group-LPS Na++, in 3 group-LPS 981, in 4 group physiological salt (control group). The histologic and immunocitochemical examinations were performed after 24, 48 hours, and after 4 and 7 days following the injection. The histologic changes were analyzed (he intensity of inflammatory reaction) using a Highly Optimazed Microscope Enviroment system. The most intensive inflammation was observed in experimental group after 24 hours (n the LPS 981D group in 5 rats out of 6, in LPS Ca++ group in 3 rats out of 6). After 48 hours the intensity of inflammatory reaction visibly decreased. On the fourth day the inflammation revealed a minimal intensity and after 7 days was practically absent. In the control group minimal inflammation was observed only in a few rats. Cilliary body hypermia was present for 48 hours in most of the experimental rats. Only a few of them had hyperemia on the fourth day. In the posterior segment minimal inflammation was noted at the end of the first day (I and II-nd group after 24 hours); this process continued until the fourth day, on the 7th day disappeared. CONCLUSIONS: The most intensive inflammation of the anterior and posterior choroidal segment is caused by homogenous salts of Havnia alvei 981.
    No preview · Article · Feb 2004 · Klinika oczna