Iwuoha, EmmanuelEtsassala, Ninon Geornest Eudes Ronauld2020-07-132024-05-132024-05-132020https://hdl.handle.net/10566/14747Philosophiae Doctor - PhDDiabetes mellitus (DM), being one of the most common metabolic disorders with an elevated morbidity and mortality rate around the world. It is characterised by deficiency in insulin secretion or degradation of secreted insulin. Many internal and external factors such as oxidative stress, obesity and sedentary lifestyle among others have been suggested as the major causes of these cell alterations. Diabetes I and II are the most common types of diabetes. Treatment of type I requires insulin injection, while type II can be managed using different synthetic antidiabetic agents. However, their effectiveness is limited as a result of low bioavailability, high cost of drug production, and unfavourable side effects. There is a great need to develop alternative and more active antidiabetic drugs from natural sources. Natural products are a well-known source for the discovery of new scaffold for drugs discovery, and South Africa is one of the most important megaflora with high percentage of endemism.enDiabetes mellitus (DM)South AfricaTreatmentLamiaceaeDiabetesAntidiabetic drugsOxidative stressCape Floristic RegionUniversity of the Western Cape