In autoimmune diseases, such as type 1 diabetes, the immune system mistakenly manufactures antibodies and inflammatory cells that are directed against and cause damage to patients' own body tissues. In persons with type 1 diabetes, the beta cells of the pancreas, which are responsible for insulin production, are attacked by the misdirected immune system. It is believed that the tendency to develop abnormal antibodies in type 1 diabetes is, in part, genetically inherited, though the details are not fully understood.
A positive result, in the absence of unequivocal high blood sugar, should be confirmed by a repeat of any of the above methods on a different day. It is preferable to measure a fasting glucose level because of the ease of measurement and the considerable time commitment of formal glucose tolerance testing, which takes two hours to complete and offers no prognostic advantage over the fasting test. According to the current definition, two fasting glucose measurements above 7.0 mmol/l (126 mg/dl) is considered diagnostic for diabetes mellitus.
I am very excited by the closed-loop artificial pancreas trial which is now in its final stages. Professor Roman Hovorka at the University of Cambridge is currently perfecting an algorithm that enables a continuous glucose monitor and an insulin pump to talk to each other, and take over the delivery of insulin throughout the day and night, to keep glucose levels in range.
The tuberculosis skin test is based on the fact that infection with M. tuberculosis produces a delayed-type hypersensitivity skin reaction to certain components of the bacterium. The standard recommended tuberculin test is administered by injecting 0.1mL of 5 TU (tuberculin units) PPD into the top layers of skin of the forearm. "Reading" the skin test means detecting a raised, thickened local area of skin reaction, referred to as induration. The area of induration (palpable, raised, hardened area) around the site of injection is the reaction to tuberculin.
Acupuncture is a procedure where a practitioner inserts very thin needles into specific points on your skin. Some scientists say that acupuncture triggers the release of the body's natural painkillers. Acupuncture has been shown to offer relief from chronic pain and is sometimes used by people with neuropathy, the painful nerve damage that can happen with diabetes.
In type I diabetes, insufficient levels of insulin result from the immune system itself attacking the pancreatic beta cells. On the other hand, while beta cell dysfunction varies widely between type II diabetes patients, insulin resistance is a major part of the disease. Restoring the beta cells of the pancreas to health is the treatment approach these two diseases share to some degree.
Abnormal cholesterol and triglyceride levels. If you have low levels of high-density lipoprotein (HDL), or "good," cholesterol, your risk of type 2 diabetes is higher. Triglycerides are another type of fat carried in the blood. People with high levels of triglycerides have an increased risk of type 2 diabetes. Your doctor can let you know what your cholesterol and triglyceride levels are.