Abstract
Elevated plasma homocysteine is widely seen as an independent risk factor of cardiovascular disease in adults. In order to investigate the role of homocysteine in a paediatric population at risk for early atheroclerosis, we studied plasma homocysteine in obese schoolchildren and non-obese peers. Plasma homocysteine, serum vitamin B12 and serum folic acid were determined in 41 obese and 27 control subjects and related to carotid intima-media thickness and flow-mediated dilatation measured on high-resolution ultrasonography. Homocysteine, vitamin B12 and folic acid were all significantly elevated in obese children. In girls, plasma homocysteine correlated significantly with body mass index (r=0.56, p=0.002), increased ICA intima-media thickness (r=0.39, p=0.035) and flow-mediated dilatation (r=−0.40, p=0.031). In boys, none of these associations reached significance (all p>0.234). No independent association of homocysteine with IMT and FMD was seen after adjustment for BMI. Conclusion: Plasma homocysteine is elevated in obese schoolchildren with hypertension and dyslipidaemia, particularly in girls. This may indicate a high-risk constellation, so that plasma homocysteine should be monitored in these children.
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Abbreviations
- ANCOVA:
-
Analysis of covariance
- BMI:
-
Body mass index
- CCA:
-
Common carotid artery
- (c)IMT:
-
(carotid) Intima-media thickness
- DBP:
-
Diastolic blood pressure
- FMD:
-
Flow-mediated dilatation
- ICA:
-
Internal carotid artery
- SBP:
-
Systolic blood pressure
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Zhu, W., Huang, X., Li, M. et al. Elevated plasma homocysteine in obese schoolchildren with early atherosclerosis. Eur J Pediatr 165, 326–331 (2006). https://doi.org/10.1007/s00431-005-0033-8
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DOI: https://doi.org/10.1007/s00431-005-0033-8