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Diabetes Care, Vol 20, Issue 6 1006-1008, Copyright © 1997 by American Diabetes Association
Increased serum levels of advanced glycation end products (AGEs) in children and adolescents with IDDM
TJ Berg, K Dahl-Jorgensen, PA Torjesen and KF Hanssen
Aker Diabetes Research Center, Aker University Hospital, Oslo, Norway. t.j.berg@ioks.uio.no
OBJECTIVE: To investigate whether the serum levels of advanced glycation
end products (AGEs) are increased in IDDM children and adolescents and to
study the effect of puberty on serum levels of AGEs (S-AGEs). RESEARCH
DESIGN AND METHODS: A total of 68 children and adolescent IDDM patients
(age, 13.3 +/- 4.0 years; duration of diabetes, 5.0 +/- 3.6 years; HbA1c,
8.2 +/- 2.0%; Tanner stage [public hair], 1 vs. 2-5, 24/42) recruited from
the pediatric outpatient clinic at Aker University Hospital were compared
with 25 healthy nondiabetic control subjects. S-AGEs were measured by a
fluoremetric immunoassay. RESULTS: S-AGEs were significantly elevated in
the diabetic group when compared with the control group (14.4 +/- 3.5 vs.
11.7 +/- 3.0 U/ml, P < 0.002). A significant correlation (r = 0.26, P
< 0.04) was found between S-AGEs and HbA1c in the diabetic group but not
in the control group. No significant correlation was found between S-AGEs
and the duration of diabetes in the diabetic group or S-AGEs and blood
glucose concentration or age in either group. We found no difference
between S-AGEs in boys and girls and in prepubertal and pubertal diabetic
or control subjects. CONCLUSIONS: S-AGEs are increased in young patients
with diabetes before puberty. Since AGEs are linked to the pathogenesis of
vascular complications, this observation suggests that the pathological
processes leading to diabetic late complications start even before puberty.

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Copyright © 1997 by the American Diabetes Association.
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