Bioactivity, therapeutic utility and toxicological risks of Khaya senegalensis

Abstract

Vegetative organs of Khaya senegalensis (Ders.) A. Juss. are widely used in African pharmacopoeia. A review of pharmacological studies, focused on this plant, was carried out, using the available scientific literature. Several studies have revealed its bioactive properties and therefore its medical efficacy. Aqueous and alcoholic extracts of the stem bark and leaves of this plant have shown efficient in the treatment of some bacterial infections. Their widely reported biochemical effects, such as _-amylase activity inhibition, decreasing in bowel motility and in some blood and serum enzyme (Aspartate transferase, Alanine transferase and Alkaline phosphatase) justify indications against diabetes, diarrhea and liver disorders. Antiparasitic properties directed against helminths and coccidian are also attributed to these herbal medicines. However, according to some results recorded in various studies, this plant has a high risk of toxicity in chronic treatment (several weeks). Histotoxic effects (in liver and kidney) resulting in increased of plasma total protein, blood urea and creatinine are reported.