Can Antioxidative Status Be Involved in Type 1 Diabetes?

Area of Science:

• Pediatric Endocrinology
• Nutritional Biochemistry
• Oxidative Stress Research

Background:

• Type 1 diabetes mellitus (T1DM) involves autoimmune beta-cell destruction leading to insulin deficiency.
• Environmental factors contribute to T1DM development, with a 0.16% prevalence in Portuguese youth (0-19 years).
• Cardiovascular disease, preceded by endothelial dysfunction, is the primary cause of mortality in T1DM, linked to hyperglycemia-induced oxidative stress.

Purpose of the Study:

• To investigate and compare the antioxidant status in Portuguese children diagnosed with type 1 diabetes.
• To assess specific markers of oxidative stress in a pediatric diabetic cohort.

Main Methods:

• Evaluated antioxidant status in children aged 2-10 years with T1DM versus healthy controls.
• Measured plasmatic levels of total phenolic content (TPC), ferric reducing antioxidant power (FRAP), and Trolox equivalent antioxidant capacity (TEAC).
• Included pre-pubescent children with a Body Mass Index (BMI) below the 85th percentile.

Main Results:

• Diabetic children exhibited significantly lower FRAP values compared to healthy controls (P < 0.001).
• No statistically significant differences were observed in TPC and TEAC between the diabetic and control groups.

Conclusions:

• Pediatric patients with type 1 diabetes in Portugal demonstrate a diminished antioxidant status relative to their healthy counterparts.
• Lower FRAP levels suggest impaired antioxidant defense mechanisms in young individuals with T1DM.