Plant parasite has originated multiple times during angiosperm evolution, and consequently, parasitic genera vary considerably in their habits and hosts ranges. Scurrula parasitica (Loranthaceae) is a parasitic shrub growing on Dendrophthoe falcata (Loranthaceae) which is itself parasitic on Mangifera indica (Anacardiaceae). Scurrula parasitica is distributed throughout the western ghat region of Maharashtra, some parts of Uttar Karnataka and Tamil Nadu. Genus Scurrula comprising of around 91 species, however, only S. ferruginea, S. atropurpurea, S. fusca have been investigated systematically. So, the main intention of the current study is to investigate the unexploited angiospermic parasite plant, Scurrula parasitica for its ethno medical claims as well as pharmacological activities based on chemotaxonomic tracing, in experimental animals. The dried methanol extract (SPM) of the whole plant of Scurrula parasitica L was studied for the effect on blood sugar level in oral glucose tolerance test (OGTT), using animals wistar rats in comparison with Glibenclamide as a reference standard (Positive control). The SPM was given in doses of 100, 200 and 400 mg/kg body weight in which dose 200 and 400 mg/kg given significant results in comparison with reference standard Glibenclamide. The study may conclude that some chemical entities transferred from host Dendrophthoe falcata and Mangifera indica to the parasite Scurrula parasiica are responsible for its effect on blood sugar level.
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