Startseite The effect of lifestyle change and metformin therapy on serum arylesterase and paraoxonase activity in obese children
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The effect of lifestyle change and metformin therapy on serum arylesterase and paraoxonase activity in obese children

  • Atilla Çayır EMAIL logo , Mehmet İbrahim Turan , Fatih Gurbuz , Nezahat Kurt und Abdulkadir Yildirim
Veröffentlicht/Copyright: 25. September 2014
Journal of Pediatric Endocrinology and Metabolism
Aus der Zeitschrift Journal of Pediatric Endocrinology and Metabolism Band 28 Heft 5-6

Abstract

Aim: Obesity is known to be associated with many diseases in the long and short terms. Elevated oxidative stress contributes to the development of such obesity-related diseases as dyslipidemia, diabetes mellitus and hypertension. Levels of the endogenous antioxidants paraoxonase and arylesterase have been shown to decrease in such diseases. The purpose of this study was to investigate whether or not changes in lifestyle and metformin therapy would affect serum paraoxonase and arylesterase levels.

Materials and methods: The study was performed with 25 overweight, 26 obese and 25 morbidly obese patients aged 6–15 years as well as 27 healthy children. Serum paraoxonase (PON1) and arylesterase (ARE) activity levels and total cholesterol, triglyceride, low-density protein, high-density protein, very low-density protein, glucose, aspartate amino transferase and alanine amino transferase levels were measured. Enrolled patients were assessed at initial presentation and again at 6 months. No procedure was performed in the control group, while the overweight, obese and morbidly obese groups were recommended diet and exercise and given metformin therapy (insulin-resistant subjects only).

Results: Serum PON1 activity levels in patients with metabolic syndrome were significantly lower than those in individuals without metabolic syndrome (p<0.05), while lipid concentrations were significantly higher (p<0.05). Metabolic syndrome patients had higher serum glucose, total cholesterol, low-density protein, very low-density protein and triglyceride values compared to those of the control group but significantly lower high-density protein values (p<0.05). No difference was determined between the groups in terms of PON1 and ARE levels following diet and exercise and metformin therapy.

Conclusion: Measurement of PON1 and ARE enzyme levels may be useful in monitoring the effectiveness of treatment aimed at reducing oxidative stress in obese children.

Keywords: arylesterase; child; obesity; oxidative stress; paraoxonase
Corresponding author: Dr. Atilla Çayır, Departments of Pediatric Endocrinology, Regional Training and Research Hospital, Erzurum, Turkey, Phone: +90 4422 325 365/90 50526 97078, Fax: +044 223 25090, E-mail:

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Received: 2013-12-15
Accepted: 2014-8-14
Published Online: 2014-9-25
Published in Print: 2015-5-1

©2015 by De Gruyter

Artikel in diesem Heft

  1. Frontmatter
  2. Highlight: Obesity
  3. Childhood obesity at the crossroads
  4. Obesogenic environments: environmental approaches to obesity prevention
  5. Childhood obesity and eating behaviour
  6. Hypothalamic obesity in children: pathophysiology to clinical management
  7. The reliability of body mass index in the diagnosis of obesity and metabolic risk in children
  8. Determining abdominal obesity cut-offs and relevant risk factors for anthropometric indices in Turkish children and adolescents
  9. The effect of body mass index on blood pressure varies by race among obese children
  10. Insulin secretion response during oral glucose tolerance test is related to low cardiorespiratory fitness in obese adolescents
  11. Is there a relationship between cardiovascular risk factors and dehydroepiandrosterone sulfate levels in childhood obesity?
  12. The effect of lifestyle change and metformin therapy on serum arylesterase and paraoxonase activity in obese children
  13. Childhood obesity, thyroid function, and insulin resistance – is there a link? A longitudinal study
  14. Associations between IGF-I, IGF-binding proteins and bone turnover markers in prepubertal obese children
  15. Osteocalcin is inversely associated with adiposity and leptin in adolescent boys
  16. Association between cardiovascular risk factors and carotid intima-media thickness in prepubertal Brazilian children
  17. Insulin resistance and cardiometabolic risk factors in obese children and adolescents: a hierarchical approach
  18. The role of apolipoprotein E polymorphism in improving dyslipidemia in obese adolescents following physical exercise and National Cholesterol Education Program Step II intervention
  19. Review article
  20. Is ultrasound useful in the diagnosis of adolescents with polycystic ovary syndrome?
  21. Original articles
  22. IGF-II expression and methylation in small for gestational age infants
  23. Early screening of FTO and MC4R variants in newborns of Greek origin
  24. Pitfalls in hormonal diagnosis of 17-beta hydroxysteroid dehydrogenase III deficiency
  25. The prevalence of vitamin D deficiency among schoolchildren: a cohort study from Xinxiang, China
  26. Management of testosterone therapy in adolescents and young men with hypogonadism: are we following adult clinical practice guidelines?
  27. Vitamin D status and its associations with components of metabolic syndrome in healthy children
  28. Metformin treatment improves weight and dyslipidemia in children with metabolic syndrome
  29. Patient reports
  30. Hypothyroidism caused by the combination of two heterozygous mutations: one in the TSH receptor gene the other in the DUOX2 gene
  31. Ovarian carcinoma in a 14-year-old with classical salt-wasting congenital adrenal hyperplasia and bilateral adrenalectomy
  32. An asymptomatic mother diagnosed with 3-methylcrotonyl-CoA carboxylase deficiency after newborn screening
  33. A new missense mutation in the BCKDHB gene causes the classic form of maple syrup urine disease (MSUD)
  34. Ovotesticular disorder of sex development with unusual karyotype: patient report
  35. First case report of medium-chain acyl-coenzyme A dehydrogenase deficiency in China
  36. Virilizing adrenal oncocytoma in a 9-year-old girl: rare neoplasm with an intriguing postoperative course
  37. Unexpected clinical features in a female patient with proopiomelanocortin (POMC) deficiency
  38. Sirolimus therapy in a patient with severe hyperinsulinaemic hypoglycaemia due to a compound heterozygous ABCC8 gene mutation
  39. Cross-reactivity of adrenal steroids with aldosterone may prevent the accurate diagnosis of congenital adrenal hyperplasia
  40. Hyperthyroidism hidden by congenital central hypoventilation syndrome
  41. The use of pamidronate for acute vitamin D intoxication, clinical experience with three cases
  42. Chondrocalcinosis related to familial hypomagnesemia with hypercalciuria and nephrocalcinosis
  43. Cushing syndrome related to leukemic infiltration of the central nervous system
  44. Hashimoto’s encephalopathy: a rare pediatric brain disease
  45. Short communication
  46. A novel ABCD1 gene mutation in a Chinese patient with X-linked adrenoleukodystrophy
https://doi.org/10.1515/jpem-2013-0486
Schlagwörter für diesen Artikel
arylesterase; child; obesity; oxidative stress; paraoxonase

Artikel in diesem Heft

  1. Frontmatter
  2. Highlight: Obesity
  3. Childhood obesity at the crossroads
  4. Obesogenic environments: environmental approaches to obesity prevention
  5. Childhood obesity and eating behaviour
  6. Hypothalamic obesity in children: pathophysiology to clinical management
  7. The reliability of body mass index in the diagnosis of obesity and metabolic risk in children
  8. Determining abdominal obesity cut-offs and relevant risk factors for anthropometric indices in Turkish children and adolescents
  9. The effect of body mass index on blood pressure varies by race among obese children
  10. Insulin secretion response during oral glucose tolerance test is related to low cardiorespiratory fitness in obese adolescents
  11. Is there a relationship between cardiovascular risk factors and dehydroepiandrosterone sulfate levels in childhood obesity?
  12. The effect of lifestyle change and metformin therapy on serum arylesterase and paraoxonase activity in obese children
  13. Childhood obesity, thyroid function, and insulin resistance – is there a link? A longitudinal study
  14. Associations between IGF-I, IGF-binding proteins and bone turnover markers in prepubertal obese children
  15. Osteocalcin is inversely associated with adiposity and leptin in adolescent boys
  16. Association between cardiovascular risk factors and carotid intima-media thickness in prepubertal Brazilian children
  17. Insulin resistance and cardiometabolic risk factors in obese children and adolescents: a hierarchical approach
  18. The role of apolipoprotein E polymorphism in improving dyslipidemia in obese adolescents following physical exercise and National Cholesterol Education Program Step II intervention
  19. Review article
  20. Is ultrasound useful in the diagnosis of adolescents with polycystic ovary syndrome?
  21. Original articles
  22. IGF-II expression and methylation in small for gestational age infants
  23. Early screening of FTO and MC4R variants in newborns of Greek origin
  24. Pitfalls in hormonal diagnosis of 17-beta hydroxysteroid dehydrogenase III deficiency
  25. The prevalence of vitamin D deficiency among schoolchildren: a cohort study from Xinxiang, China
  26. Management of testosterone therapy in adolescents and young men with hypogonadism: are we following adult clinical practice guidelines?
  27. Vitamin D status and its associations with components of metabolic syndrome in healthy children
  28. Metformin treatment improves weight and dyslipidemia in children with metabolic syndrome
  29. Patient reports
  30. Hypothyroidism caused by the combination of two heterozygous mutations: one in the TSH receptor gene the other in the DUOX2 gene
  31. Ovarian carcinoma in a 14-year-old with classical salt-wasting congenital adrenal hyperplasia and bilateral adrenalectomy
  32. An asymptomatic mother diagnosed with 3-methylcrotonyl-CoA carboxylase deficiency after newborn screening
  33. A new missense mutation in the BCKDHB gene causes the classic form of maple syrup urine disease (MSUD)
  34. Ovotesticular disorder of sex development with unusual karyotype: patient report
  35. First case report of medium-chain acyl-coenzyme A dehydrogenase deficiency in China
  36. Virilizing adrenal oncocytoma in a 9-year-old girl: rare neoplasm with an intriguing postoperative course
  37. Unexpected clinical features in a female patient with proopiomelanocortin (POMC) deficiency
  38. Sirolimus therapy in a patient with severe hyperinsulinaemic hypoglycaemia due to a compound heterozygous ABCC8 gene mutation
  39. Cross-reactivity of adrenal steroids with aldosterone may prevent the accurate diagnosis of congenital adrenal hyperplasia
  40. Hyperthyroidism hidden by congenital central hypoventilation syndrome
  41. The use of pamidronate for acute vitamin D intoxication, clinical experience with three cases
  42. Chondrocalcinosis related to familial hypomagnesemia with hypercalciuria and nephrocalcinosis
  43. Cushing syndrome related to leukemic infiltration of the central nervous system
  44. Hashimoto’s encephalopathy: a rare pediatric brain disease
  45. Short communication
  46. A novel ABCD1 gene mutation in a Chinese patient with X-linked adrenoleukodystrophy
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