Abstract
We revealed an association of IL6 gene -174G>C polymorphism with the development of nonalcoholic steatohepatitis in the Russian population. The risk is significantly higher in carriers of C allele: OR=1.77 (1.04; 3.02). The effects of -174G>C substitution in IL6 gene involving caspase 9 gene transcripts in peripheral blood leukocytes and on blood content of TNF-α in healthy individuals without clinical manifestations of nonalcoholic steatohepatitis were detected. The content of caspase 9 gene transcripts in peripheral blood leukocytes and plasma level of TNF-α were significantly higher in healthy subjects carrying C allele than in carriers of GG genotype. The levels of caspases 3, 6, 8, and 9 gene transcripts in peripheral blood leukocytes and plasma concentrations of TNF-α in patients with nonalcoholic steatohepatitis did not depend on IL6 genotype by -174G<C marker.
Keywords:
caspases; interleukin-6; nonalcoholic steatohepatitis; polymorphism.
MeSH terms
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Adult
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Alleles
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Caspase 3 / genetics
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Caspase 3 / immunology
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Caspase 6 / genetics
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Caspase 6 / immunology
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Caspase 8 / genetics
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Caspase 8 / immunology
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Caspase 9 / genetics*
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Caspase 9 / immunology
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Female
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Gene Expression Regulation
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Gene Frequency
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Genetic Predisposition to Disease*
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Heterozygote
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Humans
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Interleukin-6 / genetics*
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Interleukin-6 / immunology
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Leukocytes, Mononuclear / immunology
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Leukocytes, Mononuclear / metabolism*
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Leukocytes, Mononuclear / pathology
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Male
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Middle Aged
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Non-alcoholic Fatty Liver Disease / diagnosis
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Non-alcoholic Fatty Liver Disease / epidemiology
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Non-alcoholic Fatty Liver Disease / genetics*
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Non-alcoholic Fatty Liver Disease / immunology
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Polymorphism, Single Nucleotide
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Risk Factors
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Russia / epidemiology
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Signal Transduction
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Tumor Necrosis Factor-alpha / genetics*
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Tumor Necrosis Factor-alpha / immunology
Substances
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IL6 protein, human
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Interleukin-6
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Tumor Necrosis Factor-alpha
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CASP3 protein, human
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CASP6 protein, human
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CASP8 protein, human
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CASP9 protein, human
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Caspase 3
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Caspase 6
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Caspase 8
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Caspase 9