Abstract
Moderate alcohol consumption is suggested to be associated with reduced inflammation and morbidity. Human adipose tissue (AT) and obesity is characterised by low-grade inflammation, so the present study wanted to investigate the effects of ethanol on inflammation in human AT in vitro. Subcutaneous human AT was incubated with ethanol [11-88 mM] under non- or LPS-stimulated [50mg/mL] conditions. Protein and mRNA levels of adiponectin, IL-6, IL-8, TNF-alpha, MCP-1, and CD68 were assessed using ELISA and real-time RT-PCR, respectively. Non-stimulated, ethanol incubations up to 24h increased adiponectin release and mRNA expression (p<0.01) and decreased IL-6 release in both short-term [1.5h] (p<0.05) and long-term [24h] (p<0.01) incubations. Ethanol decreased LPS-stimulated IL-6, IL-8, TNF-alpha, and MCP-1 dose-dependently (all p<0.01). Ethanol decreased CD68 mRNA (p<0.001), which correlated with the investigated adipokines (p<0.05) but not adiponectin (p>0.05). In conclusion, ethanol exerts anti-inflammatory effects in human AT, suggesting that ethanol may attenuate whole-body inflammation.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adipokines / pharmacology
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Adiponectin / genetics
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Adiponectin / metabolism
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Adipose Tissue / drug effects*
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Adipose Tissue / metabolism
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Adipose Tissue / pathology*
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Adult
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Anti-Inflammatory Agents / pharmacology*
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Antigens, CD / genetics
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Antigens, CD / metabolism
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Antigens, Differentiation, Myelomonocytic / genetics
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Antigens, Differentiation, Myelomonocytic / metabolism
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Cells, Cultured
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Chemokine CCL2 / genetics
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Chemokine CCL2 / metabolism
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Drug Evaluation, Preclinical
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Ethanol / pharmacology*
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Female
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Humans
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Inflammation / prevention & control*
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Interleukin-6 / genetics
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Interleukin-6 / metabolism
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Interleukin-8 / genetics
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Interleukin-8 / metabolism
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Lipopolysaccharides / pharmacology
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Male
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Middle Aged
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RNA, Messenger / drug effects
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RNA, Messenger / metabolism
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Tumor Necrosis Factor-alpha / genetics
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Tumor Necrosis Factor-alpha / metabolism
Substances
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ADIPOQ protein, human
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Adipokines
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Adiponectin
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Anti-Inflammatory Agents
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Antigens, CD
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Antigens, Differentiation, Myelomonocytic
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CCL2 protein, human
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CD68 antigen, human
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Chemokine CCL2
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IL6 protein, human
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Interleukin-6
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Interleukin-8
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Lipopolysaccharides
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RNA, Messenger
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Tumor Necrosis Factor-alpha
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Ethanol