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The Problem And Its Background Essay

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CHAPTER 1
The Problem and Its Background
Introduction
Diabetes is a systemic disease caused by a decrease in the secretion of insulin or reduced sensitivity or responsiveness to insulin by target tissue. (Beale, et al., 2011) The incidence of diabetes is growing rapidly in the United States and worldwide. An estimated 347 million people around the world are afflicted with diabetes. (Whalen, et al., 2012) According to World Health Organization (WHO), Diabetes prevalence among adults over 18 years of age has risen from 4.7% in 1980 to 8.5% in 2014. It is the major cause of blindness, kidney failure, heart attack, stroke and limbic amputation. World Health Organization (WHO) projects that diabetes will be the 7th leading cause of death in 2030. It is a complex and costly disease that can affect nearly every organ in the body and result in devastating consequences. The leading cause of non-traumatic lower extremity amputations, renal failure, and blindness in working-age adults, diabetes is also a major cause of premature mortality, stroke, cardiovascular disease, peripheral vascular disease, congenital malformations, perinatal mortality, and disability. (Cefalu, 2000) Insulin therapy and oral hypoglycemic agents have demonstrated improvement in glycaemic control. However, Insulin therapy has some disadvantages such as ineffectiveness following oral administration, short shelf life, of the need for constant refrigeration, and fatal hypoglycaemia, in the event of excess dosage.

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