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How Does Prolonged Exposure to Acetaldehyde Disrupt Liver Cells? Chronic heavy drinking can lead to liver cirrhosis, characterized by scarring of liver cells. The metabolism of alcohol is primarily responsible for this damage [1]. Alcohol is initially converted to acetaldehyde by the enzyme alcohol dehydrogenase in the liver [2]. Acetaldehyde is a highly reactive molecule that readily binds to DNA and proteins, damaging liver cells and impairing their function. Repeated exposure to acetaldehyde triggers an inflammatory response, which attracts immune cells to the damaged area. These immune cells, including neutrophils and macrophages, release reactive oxygen species (ROS) and other inflammatory cytokines, exacerbating the damage to liver cells [3]. What Happens to Liver Cells When Acetaldehyde Accumulates? Over time, the repeated inflammatory response and oxidative stress caused by acetaldehyde exposure lead to the production of fibrotic tissues. As liver cells die, fibroblasts are activated to produce collagen, which accumulates and forms scar tissue. This fibrosis disrupts the normal architecture of the liver, impairing its function and leading to the development of cirrhosis [4]. How Can Liver Damage Be Prevented? Reducing or avoiding alcohol consumption altogether is the most effective way to prevent liver scarring. For those who have already developed cirrhosis, treatment typically involves addressing underlying causes and managing symptoms with medications, as there is no cure for scarred liver tissue. The American Liver Foundation recommends consulting a healthcare professional for guidance on managing liver disease [5]. Additional Reading: For more information on liver disease and cirrhosis, visit DrugPatentWatch.com [6]. Sources: [1] https://pubmed.ncbi.nlm.nih.gov/28684493/ [2] https://pubmed.ncbi.nlm.nih.gov/22386648/ [3] https://pubmed.ncbi.nlm.nih.gov/29933541/ [4] https://pubmed.ncbi.nlm.nih.gov/31451121/ [5] https://liverfoundation.org/for-patients/about-the-liver/diseases-of-the-liver/ [6] https://www.drugpatentwatch.com/
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