Evaluation of Mn-superoxide dismutase and catalase gene expression in childhood obesity: its association with insulin resistance
-
Roohollah Mohseni
,
Maryam Teimouri
Abstract
Background
Obesity is associated with oxidative stress. Superoxide dismutase (SOD) is the first line of defense against reactive oxygen species (ROS), eliminating the strong superoxide radical and producing H2O2, which can then be degraded by catalase (CAT). The main objective of this study was to evaluate the gene expression antioxidant enzymes (Mn-SOD and CAT) in peripheral blood mononuclear cells (PBMCs) of obese and normal-weight children, and its association with anthropometric and biochemical parameters.
Methods
Thirty obese and 30 control subjects between the ages of 8 and 16 years were enrolled in this study. Serum insulin levels were measured using enzyme-linked immunosorbent assay (ELISA), and insulin resistance was calculated using the homeostasis model assessment of insulin resistance (HOMA-IR). Biochemical parameters were also measured. PBMCs of the subjects were separated and Mn-SOD and CAT gene expression was measured using real-time polymerase chain reaction (PCR).
Results
Mn-SOD and CAT gene expression was significantly lower in the obese group compared with the control group (p<0.01). Also, a positive correlation was observed between the gene expression of Mn-SOD and CAT and body mass index (BMI), fasting blood sugar, insulin resistance, low density lipoprotein-cholesterol (LDL-C) cholesterol, triglycerides (TG) and systolic blood pressure (SBP).
Conclusions
Induction of antioxidants, especially Mn-SOD and CAT, can lead to reduction of oxidative stress and prevent the complications of obesity in children.
Acknowledgments
We thank the staff of the Endocrinology and Metabolism Research Institute of Tehran University of Medical Sciences for providing assistance.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work was supported by an operating grant from Hamadan University of Medical Science, Iran.
Employment or leadership: None declared.
Honorarium: None declared.
Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Review
- Prevalence of cranial MRI findings in girls with central precocious puberty: a systematic review and meta-analysis
- Original Articles
- Can having a sibling with type 1 diabetes cause disordered eating behaviors?
- Wrist circumference as a novel predictor of obesity in children and adolescents: the CASPIAN-IV study
- Evaluation of Mn-superoxide dismutase and catalase gene expression in childhood obesity: its association with insulin resistance
- Impact of a group-based treatment program on adipocytokines, oxidative status, inflammatory cytokines and arterial stiffness in obese children and adolescents
- Clinical management of childhood hyperthyroidism with and without Down syndrome: a longitudinal study at a single center
- Detection of distant metastasis at the time of ablation in children with differentiated thyroid cancer: the value of pre-ablation stimulated thyroglobulin
- Random serum free cortisol and total cortisol measurements in pediatric septic shock
- Self-assessment of pubertal development in a puberty cohort
- Growth, the Mediterranean diet and the buying power of adolescents in Greece
- Clinical and molecular genetic characterization of two patients with mutations in the phosphoglucomutase 1 (PGM1) gene
- Genetic analysis of three families with X-linked dominant hypophosphatemic rickets
- Clinical heterogeneity and molecular profile of triple A syndrome: a study of seven cases
- No central adrenal insufficiency found in patients with Prader-Willi syndrome with an overnight metyrapone test
- Case Reports
- A novel mutation in the proopiomelanocortin (POMC) gene of a Hispanic child: metformin treatment shows a beneficial impact on the body mass index
- Hypertriglyceridemia thalassemia syndrome
- Severe consumptive hypothyroidism caused by multiple infantile hepatic haemangiomas
Artikel in diesem Heft
- Frontmatter
- Review
- Prevalence of cranial MRI findings in girls with central precocious puberty: a systematic review and meta-analysis
- Original Articles
- Can having a sibling with type 1 diabetes cause disordered eating behaviors?
- Wrist circumference as a novel predictor of obesity in children and adolescents: the CASPIAN-IV study
- Evaluation of Mn-superoxide dismutase and catalase gene expression in childhood obesity: its association with insulin resistance
- Impact of a group-based treatment program on adipocytokines, oxidative status, inflammatory cytokines and arterial stiffness in obese children and adolescents
- Clinical management of childhood hyperthyroidism with and without Down syndrome: a longitudinal study at a single center
- Detection of distant metastasis at the time of ablation in children with differentiated thyroid cancer: the value of pre-ablation stimulated thyroglobulin
- Random serum free cortisol and total cortisol measurements in pediatric septic shock
- Self-assessment of pubertal development in a puberty cohort
- Growth, the Mediterranean diet and the buying power of adolescents in Greece
- Clinical and molecular genetic characterization of two patients with mutations in the phosphoglucomutase 1 (PGM1) gene
- Genetic analysis of three families with X-linked dominant hypophosphatemic rickets
- Clinical heterogeneity and molecular profile of triple A syndrome: a study of seven cases
- No central adrenal insufficiency found in patients with Prader-Willi syndrome with an overnight metyrapone test
- Case Reports
- A novel mutation in the proopiomelanocortin (POMC) gene of a Hispanic child: metformin treatment shows a beneficial impact on the body mass index
- Hypertriglyceridemia thalassemia syndrome
- Severe consumptive hypothyroidism caused by multiple infantile hepatic haemangiomas
