In people with insulin resistance, the pancreas "sees" the blood glucose level rising. The pancreas responds by making extra insulin to try to usher the glucose into the cells. At first, this works, but over time, the body's insulin resistance gets worse. In response, the pancreas makes more and more insulin. Finally, the pancreas gets "exhausted." It cannot keep up with the demand for more and more insulin. As a result, blood glucose levels rise and stay high.
Patient Education. Successful management of diabetes requires that the patient actively participate in and be committed to the regimen of care. The problem of poor control can cause serious or even deadly short-term and long-term complications, with devastating effects on the patient's longevity and sense of well being. There are many teaching aids available to help persons with diabetes understand their disease and comply with prescribed therapy. In general, a patient education program should include the following components:
The earliest oral diabetes drugs were the sulfonylureas. These work by stimulating the pancreas to produce more insulin. The oldest of these drugs still on the market is chlorpropamide (Diabinese), which has been used for more than 50 years. The second-generation sulfonylureas are taken once or twice a day. They include glipizide (Glucotrol, Glucotrol XL), glyburide (Micronase, DiaBeta, Glynase), and glimepiride (Amaryl).
Incidence and Prevalence. It has been estimated that slightly over 6 per cent of the population is affected by some form of diabetes, or 17 million people in the USA and 1.2 to 1.4 million in Canada; many of these individuals are not diagnosed. Diabetes is ranked third as a cause of death, although the life span of patients with diabetes has increased due to improved methods of detection and better management. There is no cure for diabetes at the present time, but enormous strides have been made in the control of the disease. The patient must understand the importance of compliance with the entire treatment plan, including diet, exercise, and in some cases medication. The patient with diabetes is at increased risk for cardiovascular disease, renal failure, neuropathies, and diabetic retinopathy. Research studies such as the Diabetes Control and Complications Trial have indicated that tight control of blood glucose levels resulted in the delay or prevention of retinopathy, nephropathy, and neuropathy.
The word mellitus (/məˈlaɪtəs/ or /ˈmɛlɪtəs/) comes from the classical Latin word mellītus, meaning "mellite" (i.e. sweetened with honey; honey-sweet). The Latin word comes from mell-, which comes from mel, meaning "honey"; sweetness; pleasant thing, and the suffix -ītus, whose meaning is the same as that of the English suffix "-ite". It was Thomas Willis who in 1675 added "mellitus" to the word "diabetes" as a designation for the disease, when he noticed the urine of a diabetic had a sweet taste (glycosuria). This sweet taste had been noticed in urine by the ancient Greeks, Chinese, Egyptians, Indians, and Persians.
Prevention and treatment involve maintaining a healthy diet, regular physical exercise, a normal body weight, and avoiding use of tobacco. Control of blood pressure and maintaining proper foot care are important for people with the disease. Type 1 diabetes must be managed with insulin injections. Type 2 diabetes may be treated with medications with or without insulin. Insulin and some oral medications can cause low blood sugar. Weight loss surgery in those with obesity is sometimes an effective measure in those with type 2 diabetes. Gestational diabetes usually resolves after the birth of the baby.
An organ in the abdomen called the pancreas produces a hormone called insulin, which is essential to helping glucose get into the body's cells. In a person without diabetes, the pancreas produces more insulin whenever blood levels of glucose rise (for example, after a meal), and the insulin signals the body's cells to take in the glucose. In diabetes, either the pancreas's ability to produce insulin or the cells' response to insulin is altered.
Extreme urination continues throughout the day and the night. In children, DI can interfere with appetite, eating, weight gain and growth, as well. They may present with fever, vomiting or diarrhea. Adults with untreated DI may remain healthy for decades as long as enough water is consumed to offset the urinary losses. However, there is a continuous risk of dehydration and loss of potassium that may lead to hypokalemia.