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Serum homocysteine levels, oxidative stress and cardiovascular risk in non-alcoholic steatohepatitis
- Source :
- European journal of internal medicine. 25(8)
- Publication Year :
- 2014
-
Abstract
- Introduction Hyperhomocysteinemia is considered an independent risk factor for cardiovascular disease. Oxidative stress is one of the major pathogenic mechanisms in non-alcoholic fatty liver disease and atherosclerosis. Aim Our study aimed to evaluate serum homocysteine levels and oxidative stress in patients with biopsy-proven non-alcoholic steatohepatitis and possible association with cardiovascular risk measured by carotid artery intima-media thickness (c-IMT). Patients and methods 50 patients with non-alcoholic steatohepatitis and 30 healthy controls, age and gender matched, were recruited. Lipid profile, liver biochemical markers, serum homocysteine, vitamins B6 and B12, folic acid, glutathione (reduced and total), erythrocyte superoxide dismutase, whole blood glutathione peroxidase, malondialdehyde and carotid intima-media thickness were assayed. Results Patients had an altered lipid profile and liver biochemical markers; carotid intima-media thickness and serum homocysteine levels were significantly higher compared to controls, but there were no differences in folate, B12 and B6 vitamins levels. Patients had significantly lower levels of glutathione peroxidase activity, total and reduced glutathione and higher levels of malondialdehyde, but unchanged superoxide dismutase activity compared to control group. Also, serum homocysteine level showed significant positive correlation with waist circumference, body mass index, free cholesterol, triglycerides, LDL-cholesterol, amino transferases and negative correlation with reduced and total glutathione, superoxide dismutase and γ-GT. Conclusion Non-alcoholic steatohepatitis is an independent cardiovascular risk factor, associated with elevated homocysteine levels, oxidative stress and c-IMT. c-IMT could be used as an indicator of early atherosclerotic changes initiated by dyslipidemia and oxidative stress, while higher level of homocysteine might be an effect of liver damage.
- Subjects :
- Adult
Male
medicine.medical_specialty
Hyperhomocysteinemia
Homocysteine
medicine.disease_cause
Carotid Intima-Media Thickness
Risk Assessment
chemistry.chemical_compound
Non-alcoholic Fatty Liver Disease
Internal medicine
Internal Medicine
medicine
Humans
chemistry.chemical_classification
medicine.diagnostic_test
business.industry
Glutathione peroxidase
Fatty liver
Ultrasonography, Doppler
Middle Aged
medicine.disease
Malondialdehyde
Oxidative Stress
Endocrinology
Cross-Sectional Studies
chemistry
Cardiovascular Diseases
Female
Steatohepatitis
Lipid profile
business
Oxidative stress
Subjects
Details
- ISSN :
- 18790828
- Volume :
- 25
- Issue :
- 8
- Database :
- OpenAIRE
- Journal :
- European journal of internal medicine
- Accession number :
- edsair.doi.dedup.....dbec99bf923455911af32ff2fedefcca