Environmental exposures may contribute to recent increases in the rate of type 2 diabetes, the predominant abnormality is reduced insulin sensitivity, characterized by elevated levels of insulin in the blood.
Diabetes and its treatments can cause many complications.
Diabetes develops due to a diminished production of insulin (in type 1) or resistance to its effects (in type 2 and gestational).
A positive correlation has been found between the concentration in the urine of bisphenol A, a constituent of polycarbonate plastic,.
Values above 600 mg/dl (30 mmol/l) usually require medical treatment and may lead to seizures or episodes of unconsciousness and absolutely must be treated immediately, via emergency high-glucose gell placed in the patient's mouth or an injection of glucagon.
The majority of type 1 diabetes is of the immune-mediated variety, where beta cell loss is a T-cell mediated autoimmune attack.
Apart from the common subcutaneous injections, it is also possible to deliver insulin by a pump, which allows continuous infusion of insulin 24 hours a day at preset levels, and the ability to program doses (a bolus) of insulin as needed at meal times.
The principal treatment of type 1 diabetes, even in its earliest stages, is the delivery of artificial insulin via injection combined with careful monitoring of blood glucose levels due to defects in either insulin secretion or insulin action.
Type 1 diabetes can affect children or adults but was traditionally termed "juvenile diabetes" because it represents a majority of the diabetes cases in children.
In the last decade, type 2 diabetes has increasingly begun to affect children and adolescents, likely in connection with the increased prevalence of childhood obesity seen in recent decades...

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