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Immunological manifestations in type I diabetic children

Andreea Liana Răchişan1, Bianca Andreea David, Simona Căinap

  • 1Department of Pediatrics II, University of Medicine and Pharmacy "luliu Haţieganu" Cluj-Napoca, Romania.

Roumanian Archives of Microbiology and Immunology
|December 6, 2012
PubMed

Insights

Type 1 diabetes may be linked to oxidative stress. This study found lower paraoxonase 1 arylesterase activity in diabetic females versus males, suggesting gender differences in this antioxidant enzyme.

Area of Science:

  • Biochemistry
  • Endocrinology
  • Immunology

Background:

  • Type 1 diabetes mellitus (T1DM) is increasingly recognized as an oxidative stress-influenced condition.
  • Paraoxonase 1 (PON1) enzyme is vital for antioxidant and antiatherogenic processes.
  • Understanding PON1 activity in T1DM, especially in relation to other autoimmune conditions and gender, is crucial.

Purpose of the Study:

  • To investigate differences in paraoxonase 1 (PON1) enzymatic activities (arylesterase and paraoxonase) between diabetic children and healthy controls.
  • To explore potential gender-based variations in PON1 activities within diabetic children.
  • To assess the correlation between PON1 activities, C-peptide levels, insulin antibodies, and disease duration in type 1 diabetic children.

Main Methods:

  • Enzymatic activities of paraoxonase 1 (PON1) were measured in 51 children with type 1 diabetes and 36 healthy controls.
  • C-peptide levels were determined in diabetic children.
  • Statistical analysis was performed to compare groups and assess correlations.

Main Results:

  • Paraoxonase 1 arylesterase activity was significantly lower in diabetic females compared to diabetic males.
  • C-peptide levels showed an inverse correlation with the duration of the disease.
  • PON1 activities correlated with insulin antibody levels in type 1 diabetic children.

Conclusions:

  • Paraoxonase 1 enzymatic patterns, specifically arylesterase activity, may differ between genders in type 1 diabetic children, potentially being lower in females.
  • C-peptide levels serve as a valuable indicator of remaining beta-cell function in T1DM.
  • PON1 activity warrants further investigation as a potential biomarker in T1DM, considering its role in oxidative stress and potential gender-specific differences.

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