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https://www.selleckchem.com/products/penicillin-streptomycin.html Increasing populations are found to bear mild hepatic iron overload (HIO) due to unhealthy lifestyles, metabolic diseases, etc., whether this mild but chronic HIO induces hepatic inflammation is unknown. In the present study, mice receiving a 12-months 0.3% dextran-iron diet show mild HIO with no detectable oxidative damages in the liver but have infiltrated macrophages and increased IL-6, TNFα, AST and ALT since 6-months. The HNF4α/miR-122/CCL2 pathway, identified by our previous studies to induce macrophages infiltration, is initiated by chronic mild HIO. After excluding the role of DNA methylation, a modified transcription factor microarray is applied to find that transcription factor YY1 is responsible for HIO-decreased HNF4α expression. Then the E3 ubiquitin ligase TRIP12 is identified by an immunoprecipitation coupled LC-MS/MS and proved to bind and ubiquitinate YY1, leading to its degradation. The overexpression or silence of YY1 in the liver regulates the HNF4α/miR-122/CCL2 pathway. More importantly, YY1 overexpression alleviates chronic mild HIO induced hepatic inflammatory responses. In conclusion, these results elucidate an oxidative-stress-independent, TRIP12/YY1/HNF4α/miR-122/CCL2 pathway of chronic mild HIO inducing hepatic inflammation, implying that effective measures in addition to antioxidants are needed for individuals at the risk of chronic mild HIO.Alcohol misuse is long established as a contributor to the pathophysiology of the lung. The intersection of multi-organ responses to alcohol-mediated tissue injury likely contributes to the modulation of lung in response to injury. Indeed, the negative impact of alcohol on susceptibility to infection and on lung barrier function is now well documented. Thus, the alcohol lung represents a very likely comorbidity for the negative consequences of both COVID-19 susceptibility and severity. In this review, we present the known alcohol misuse

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