Effect of insulin on plasma vascular endothelial growth factor in children with new-onset diabetes.
BACKGROUND
Considerable experimental evidence inculpates vascular endothelial growth factor (VEGF) as one of the candidate factors providing a mechanistic link between hyperglycemia and diabetic complications.


OBJECTIVE
The aim of the study was to assess the effect of insulin treatment and glycemic control on plasma VEGF levels in children with new-onset diabetes.


METHODS
This prospective study assessed the changes in plasma VEGF levels after treatment of diabetes with insulin. We also aimed to ascertain whether there was any correlation between plasma VEGF levels and simultaneous random plasma glucose. The study comprised 19 children with new-onset diabetes mellitus between the ages of 3 and 18 yr. The control group comprised 55 healthy nondiabetic children with idiopathic short stature.


RESULTS
Plasma VEGF concentrations were significantly elevated in children at diagnosis of diabetes, compared with healthy controls (P < 0.0002). Plasma VEGF levels (P < 0.01) and hemoglobin A(1C) (P < 0.0001) declined in diabetic children after insulin treatment. There was a highly significant correlation between reduction in plasma VEGF levels and hemoglobin A1C levels (r = 0.65, P = 0.0037). We did not find any correlation between the simultaneous plasma glucose values and basal VEGF.


CONCLUSIONS
Presence of hyperglycemia and/ or insulin deficiency in children with new-onset of diabetes is associated with plasma VEGF elevation, even at the outset of disease, and this can be mitigated by insulin therapy.
Ashraf
Ambika
A
Department of Pediatrics/Division of Pediatric Endocrinology and Metabolism, The Children's Hospital, University of Alabama at Birmingham, ACC 608, 1600 Seventh Avenue South, Birmingham, Alabama 35233, USA. aashraf@peds.uab.edu
Mick
Gail
G
Meleth
Sreelatha
S
Abdullatif
Hussein
H
Wang
Xudong
X
McCormick
Kenneth
K
D000138:Acidosis / Q000097:blood / Q000209:etiology; D000293:Adolescent; D001786:Blood Glucose; D001806:Blood Urea Nitrogen; D002648:Child; D002675:Child, Preschool; D003681:Dehydration / Q000097:blood / Q000209:etiology; D003922:Diabetes Mellitus, Type 1 / Q000097:blood* / Q000150:complications / Q000188:drug therapy*; D005260:Female; D006442:Glycated Hemoglobin / Q000378:metabolism; D006801:Humans; D006943:Hyperglycemia / Q000097:blood / Q000150:complications / Q000188:drug therapy; D007004:Hypoglycemic Agents / Q000008:administration & dosage*; D007328:Insulin / Q000008:administration & dosage*; D008137:Longitudinal Studies; D008297:Male; D011446:Prospective Studies; D042461:Vascular Endothelial Growth Factor A / Q000097:blood*
D001786:Blood Glucose; D006442:Glycated Hemoglobin; D007004:Hypoglycemic Agents; D007328:Insulin; D042461:Vascular Endothelial Growth Factor A