Abstract

Flour mite, Acarus siro affects stored products, especially wheat flour. Ingestion of foods infested with storage mites causes systemic anaphylaxis. The objective of this study is to examine the histopathological effect of Acarus siro extract on lung tissue. Female Wister rats were orally treated with 0.2 ml/gm bw of Acarus siro extract once/week for a period of one, two, and three months. After each experimental period, rats were dissected and lungs were isolated and processed for histological study. Examination of lung sections revealed different lesions such as, oedema, haemorrhage, thickness in interalveolar septum, dilation in blood vessel, tearing in bronchiolar epithelium, and disturbance in the alveolar architecture.

Key words: Acarus siro, histopathology, lung