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Experimental Models of Acute and Chronic Sialoadenitis in the Guinea Pig

机译:豚鼠急性和慢性唾液腺炎的实验模型

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References(13) Acute and chronic sialoadenitis were induced in ovalbumin-immunized guinea pigs by a single or repeated (once a day for 5 days) instillation of antigen into the parotid gland via the parotid duct. The acute sialoadenitis was characterized by infiltration of inflammatory polymorphonuclear leukocytes and the chronic one, by extensive tissue destruction together with infiltration of mononuclear leukocytes. In acute sialoadenitis, myeloperoxidase activity in the parotid gland, which was a marker of accumulation of neutrophils, was elevated, but in the chronic stage, it returned nearly to the control level. This observation is in accord with the histological findings that infiltrating cells in acute and chronic sialoadenitis were mainly polymorphonuclear and mononuclear leukocytes, respectively. Although cyclophosphamide suppressed the inflammation, both in acute and chronic sialoadenitis, indomethacin exerted its anti-inflammatory effect only in the acute stage. Our experimental models of acute and chronic sialoadenitis were easy to prepare, and had a high incidence. As the typical features of inflammatory development from acute to chronic phases were observed in these models, these models may be useful for studying the mechanism of the chronic course in immunologically induced inflammation and the effects of drugs on each phase and the chronic course of inflammation.
机译:参考文献(13)通过卵白蛋白免疫的豚鼠通过腮腺导管一次或多次(每天一次,连续5天)向腮腺中注入抗原,诱发了急性和慢性唾液腺炎。急性唾液腺炎的特征在于炎性多形核白细胞的浸润,而慢性唾液腺炎的特征是广泛的组织破坏以及单核白细胞的浸润。在急性唾液腺炎中,腮腺中的髓过氧化物酶活性升高,这是嗜中性粒细胞积累的标志,但在慢性阶段,其活性几乎恢复到对照水平。该观察结果与组织学发现相符,即急性和慢性唾液腺炎中的浸润细胞分别主要是多形核和单核白细胞。尽管环磷酰胺在急性和慢性唾液腺炎中均抑制了炎症,但消炎痛仅在急性阶段才发挥其消炎作用。我们的急性和慢性唾液腺炎的实验模型易于制备,并且发病率很高。由于在这些模型中观察到了从急性期到慢性期的炎症发展的典型特征,因此这些模型对于研究免疫诱导的炎症中的慢性病程的机制以及药物在每个阶段和慢性病程中的作用可能是有用的。

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