Medicinal plants and diabetes: An ethnopharmacological studyin Brazilian Northeast

Abstract

Despite access to conventional medical therapies, the use of complementary medicine is increasing in many communities. The present study aimed to evaluate the popular knowledge of medicinal plants used to treat diabetes and its co-morbidities, in four rural communities in the municipality of Vitória de Santo Antão, in the Brazilian State of Pernambuco. The relative importance of a particular medicinal plant was calculated based on the percentage of mentions (IR%). The similarity between the communities was quantified using the Sørensen index (Ss).Interviews were conducted with 141 patients, of these, 83 reported use of medicinal plants as an alternative treatment. Overall there were 186 mentions, covering 61 ethnospecies. In relation to IR%, Mentha × villosa presented the highest value.Knowing the factors that influence selection of medicinal plants sheds light on the mechanisms through which patterns of use develop and this may help to preserve this knowledge.