Diabetes mellitus (DM) is a systemic metabolic disease that is characterized by alterations in the metabolism of carbohydrates, proteins and
lipids. DM compromises the immune system, increases the incidence of infection, and impairs wound healing. Many factors are involved in
influencing the prevalence of DM; these include age, sex, genetic susceptibility, socioeconomic status, modern lifestyle and environmental factors
(Zargar et al., 2000; Kadiki and Roaeid 2001).