Effect on ethanolic extract of Sechium edule fruitson imquimodinduced psoriasis like dermatitis in wistar rats

Abstract

The purpose of this study was to find out if the ethanolic fruit extract of Sechium edule fruits could prevent Imquimod (IMQ)-induced psoriasis-like dermatitis in male Wistar rats. The rats were divided into four groups of five rats each group. Group 1 served as a negative control, while groups 2 and 4 received 5 percent IMQ cream topically on shaved backs, topical 5 percent IMQ cream + S. edule (200mg/kg) orally once daily and topical 5 percent IMQ cream + S. edule (400mg/kg) orally once daily, respectively. From days 3 to 9, the animals treated with IMQ developed characteristic erythmea, scaling and thickening, according to the findings. Furthermore, skin thickness and the psoriasis area severity index (PASI) both were increased significantly. In IMQ-challenged mice, histological investigation revealed epidermal cuticle, including parakeratosis, acanthosis and perivascular infiltration of inflammatory cells. In IMQchallenged rats, treatment with S. edule (200 and 400mg/kg) significantly reversed all of these symptoms.