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Association between Antioxidant Enzyme Activities and Enterovirus-Infected Type 1 Diabetic Children
Adel Abdel-Moneim1, Waled M El-Senousy2, Mahmoud Abdel-Latif3
1Molecular Physiology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.
Insights
Enterovirus (EV) infection in children with type 1 diabetes (T1D) significantly reduces antioxidant enzyme activity. This decrease in enzymes like GPx, SOD, and CAT may worsen beta cell damage and inflammation in T1D patients.
Area of Science:
- Endocrinology
- Virology
- Immunology
Background:
- Type 1 diabetes (T1D) is an autoimmune disease affecting beta cells.
- Enterovirus (EV) infections are common in children and have been implicated in T1D pathogenesis.
- Antioxidant enzymes play a crucial role in protecting cells from oxidative stress.
Purpose of the Study:
- To investigate the impact of Enterovirus (EV) infection on serum antioxidant enzyme activities in children with type 1 diabetes (T1D).
- To compare enzyme activities between diabetic children with and without EV infection, and with healthy controls.
Main Methods:
- Reverse transcriptase (RT)-PCR was used to detect EV RNA in 382 diabetic and 100 nondiabetic children.
- Serum activities of superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) were measured.
- Fasting blood glucose (FBG), glycosylated hemoglobin (HbA1c), C-peptide, and C-reactive protein (CRP) levels were assessed.
Main Results:
- EV was detected in 26.2% of diabetic children versus 0% of controls.
- Diabetic children had higher FBG, HbA1c, and CRP, and lower C-peptide than controls.
- Antioxidant enzyme activities (GPx, SOD, CAT) were significantly lower in diabetic children compared to controls.
- EV-infected diabetic children (T1D-EV+) showed further significant reductions in antioxidant enzyme activities compared to non-infected diabetic children (T1D-EV-).
Conclusions:
- Enterovirus infection is associated with decreased serum antioxidant enzyme activity in children with type 1 diabetes.
- Reduced antioxidant capacity in T1D-EV+ children may contribute to beta cell damage and increased inflammation.
- Further research is warranted to explore the therapeutic potential of antioxidants in T1D management.
Objective:
To examine the effect of infection with Enterovirus (EV) in children with type 1 diabetes (T1D) on the activities of serum antioxidant enzymes in diabetic and nondiabetic controls.
Subjects And Methods:
Three hundred and eighty-two diabetic and 100 nondiabetic children were tested for EV RNA using reverse transcriptase (RT)-PCR. The activities of serum superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) were also estimated in diabetic patients infected with EV (T1D-EV+), those not infected with EV (T1D-EV-), and in nondiabetic controls.
Results:
The frequency of EV was higher in diabetic children (100/382; 26.2%) than in healthy controls (0/100). Levels of fasting blood glucose (FBG), glycosylated hemoglobin (HbA1c) and C-reactive protein (CRP) were significantly higher but C-peptide was significantly lower in diabetic children than in controls. CRP levels were higher in the T1D-EV+ group than in the T1D-EV- group, and higher in all diabetic children than in nondiabetic controls. The activities of the antioxidant enzymes GPx, SOD, and CAT decreased significantly in diabetic children compared to in controls. Moreover, the activities of the enzymes tested were significantly reduced in the T1D-EV+ group compared to in the T1D-EV- group.
Conclusion:
Our data indicate that EV infection correlated with a decrease in the activity of antioxidant enzymes in the T1D-EV+ group compared to in the T1D-EV- group; this may contribute to β cell damage and increased inflammation.
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