Spray-dried extract of Phyllanthus niruriL. reduces mucosal damage in rats with intestinal inflammation

Phyllanthus niruriL. belongs to the Euphorbiaceae, and is known by the common name of 'stonebreaker' in Brazil. Some species within the Phyllanthus genus are widely used in traditional medicine to counteract different types of anti-inflammatory diseases. Objectives In this study, the preventive intestinal anti-inflammatory activity of spray-dried extract of P.niruri (SDEPn) was tested in the model of acetic acid (10%)-induced ulcerative colitis in the rat. Methods Colitis animals were given orally at doses 25, 100 and 200mg/kg. Colons tissue was analysed by macroscopic score, by histopathology score, by the immunohistochemical examination of tumour necrosis factor alpha, p53 and interferon gamma; by spectroscopic ultraviolet-visible spectrophotometry (UV/VIS) analysis of the levels of myeloperoxidase, malonaldehyde and total glutathione. Key Findings/Result Pretreatment of the extract to colitic rats significantly attenuated colonic macroscopic damage induced by acetic acid (P