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Early Markers of Atherosclerosis in Children and Adolescents with Type 1 Diabetes Mellitus

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Abstract

Objectives

To detect early atherosclerosis changes using flow-mediated dilation (FMD) of the brachial artery, carotid intima–media thickness (CIMT), inflammatory markers (hs-CRP, IL-6), and endothelial markers (sICAM and sVCAM).

Methods

The authors recruited 4 to 18-y-old children with type 1 diabetes mellitus (T1DM) and age- and sex-matched normal children, excluding those with familial hypercholesterolemia, syndromic disorders, and cardiovascular disease. CIMT and FMD were measured in both the groups. Biomarkers hs-CRP, IL-6, sICAM, and sVCAM, were analyzed in the T1DM group.

Results

Forty T1DM children and 40 controls with 27 (67.5%) girls were enrolled in each group. The mean age was 9.68 y. The T1DM group had 4 (10%) obese and 4 (10%) overweight children. Among cases, 9 (22.5%) had diabetes for > 5 y, 24 (60%) required daily insulin between 0.8 and 1.2 IU/kg/d and 26 (65%) had HbA1c > 10 g/dL. The CIMT values were significantly higher in cases (0.69 mm) than in controls (0.59 mm); 29 (72.5%) cases had abnormal combined CIMT values. FMD was lesser in cases than in controls but not significant. The median values of hs-CRP, IL-6, sICAM, sVCAM were 0.81 mg/L, 6.27 pg/mL, 46.33 ng/mL and 668.81 ng/mL, respectively. A significant correlation of IL-6 with CIMT (r = 0.543, p =  < 0.001) and sICAM with FMD (r =  −0.397, p = 0.011) was observed. VCAM was low in the obese and overweight children.

Conclusion

Children with type 1 diabetes had higher CIMT than normal children, whereas FMD did not differ. The association between elevated inflammatory markers with high CIMT and low FMD indicates that inflammation plays an essential role in endothelial dysfunction.

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Funding

The study was funded by JIPMER intramural research fund – grant No. JIP/Dean(R)/Intarmural/ Phs 1/ 2019–20 dated 9th October 2020.

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Authors and Affiliations

Authors

Contributions

DCG and PSB conceptualized the study; PSB collected the data and drafted the initial draft of the manuscript; DCG performed the analysis of data and literature search; DCG, AA, MR and JS provided intellectual input in the final drafting of the manuscript and did overall supervision. All authors contributed to the critical revision of the article.

Guarantor

Dr Narayanan Parameswaran, Professor & Head, Department of Pediatrics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India.

Corresponding author

Correspondence to Delhikumar C. G..

Ethics declarations

Ethical Approval

The study was approved by Institute Ethics committee (Human studies) with approval number—JIP/IEC/2019/157.

Consent to Participate

Informed consent was obtained from all the individual participants included in the study.

Consent to Publish

Patients signed informed consent regarding publishing their data.

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None.

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Bharathy, P.S., Delhikumar, C., Rajappa, M. et al. Early Markers of Atherosclerosis in Children and Adolescents with Type 1 Diabetes Mellitus. Indian J Pediatr 90, 227–232 (2023). https://doi.org/10.1007/s12098-022-04314-w

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  • DOI: https://doi.org/10.1007/s12098-022-04314-w

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