Diabetes
Description of Diabetes:
Diabetes mellitus (IPA: /ˌdaɪəˈbiːtiːz/ or /ˌdaɪəˈbiːtəs/, /məˈlaɪtəs/ or /ˈmɛlətəs/),
often referred to simply as diabetes (Ancient Greek: διαβαίνειν "to pass through"),
is a syndrome of disordered metabolism, usually due to a combination of
hereditary and environmental causes, resulting in abnormally high blood sugar
levels (hyperglycemia). Blood glucose levels are controlled by a complex
interaction of multiple chemicals and hormones in the body, including the
hormone insulin made in the beta cells of the pancreas. Diabetes mellitus refers
to the group of diseases that lead to high blood glucose levels due to defects
in either insulin secretion or insulin action.
Diabetes develops due to a diminished production of insulin (in type 1) or
resistance to its effects (in type 2 and gestational). Both lead to
hyperglycaemia, which largely causes the acute signs of diabetes: excessive
urine production, resulting compensatory thirst and increased fluid intake,
blurred vision, unexplained weight loss, lethargy, and changes in energy
metabolism.
All forms of diabetes have been treatable since insulin became medically
available in 1921, but there is no cure. The injections by a syringe, insulin
pump, or insulin pen deliver insulin, which is a basic treatment of type 1
diabetes. Type 2 is managed with a combination of dietary treatment, exercise,
medications and insulin supplementation.
Diabetes and its treatments can cause many complications. Acute complications
(hypoglycemia, ketoacidosis, or nonketotic hyperosmolar coma) may occur if the
disease is not adequately controlled. Serious long-term complications include
cardiovascular disease (doubled risk), chronic renal failure, retinal damage (which
can lead to blindness), nerve damage (of several kinds), and microvascular
damage, which may cause erectile dysfunction and poor wound healing. Poor
healing of wounds, particularly of the feet, can lead to gangrene, and possibly
to amputation. Adequate treatment of diabetes, as well as increased emphasis on
blood pressure control and lifestyle factors (such as not smoking and
maintaining a healthy body weight), may improve the risk profile of most of the
chronic complications. In the developed world, diabetes is the most significant
cause of adult blindness in the non-elderly and the leading cause of non-traumatic
amputation in adults, and diabetic nephropathy is the main illness requiring
renal dialysis in the United States.
Specific Diabetes Information
Articles, questions and answers.