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Hazard of aggressive blood glucose reduction in diabetics
A
glucose-reduction trial was halted when researchers found that volunteers
receiving aggressive therapy were more likely to die. (Science
15 February 2008: Vol. 319. no. 5865, pp. 884 – 885).
Investigators in the United States and Canada recruited 10,251 people with
type 2 diabetes. Blood sugar was assessed by hemoglobin A1c, a measure of
sugar inside blood cells. After nearly 4 years, 257 people in intensive
treatment, whose A1c averaged 6.4%, had died, compared with 203 in standard
care, whose A1c was on average 7.5%. The deaths had various causes--surgical
complications, sepsis, strokes. But many were heart attacks.
Medicine postulates that the only healthy (normal) blood sugar level is
that observed in healthy individuals, and treatment of diabetic patients
ought to lower blood sugar to this level. However this trial shows that
in diabetics such a normo-glycemia is unhealthy. We ought therefore
redefine what a normal blood sugar is. As diabetes progresses so does
its normo-glycemia. Each diabetic patient has its own normo-glycemia.
Obviously when compared with a healthy individual this normo-glycemia is
actually hyper-glycemic while the normo-glycemia of the healthy individual
is hypo-glycemic to the particular diabetic patient.
From the patient’s perspective, the measures applied in the trial drove
patients to hypo-glycemia and raised their risk to die. It is striking
that the death was attributed to various causes indicating the body
as a whole suffered from the false treatment.