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Liver Disease

Liver Disease (Human Nutrition · Health Consequences of Alcohol Abuse) — "Alcohol stimulates the release of epinephrine from the kidneys. Epinephrine binds to…

Ideas in this flowchart

  • Alcohol-related liver disease and alcohol-induced liver damage
  • Alcoholic Liver Disease (ALD) describes liver problems linked to excessive alcohol intake.
  • Alcohol abuse severely stresses the liver, one of the body’s main filtering organs.
  • Alcohol triggers hormonal and metabolic changes that alter liver lipid processing.
  • Epinephrine stimulates pancreatic glucagon release; together they stimulate glycogenolysis in liver cells.
  • Epinephrine stimulates triglyceride and glycerol breakdown, releasing free fatty acids into the bloodstream and liver.
  • Some lipids are stored in liver cells, while the remainder are converted into very low density lipoprotein (VLDL).
  • Accumulation of stored triglycerides and VLDL causes fatty liver, also called hepatic steatosis.
  • More alcohol produces and stores more lipids, and these effects accumulate over time.
  • Fat accumulation can impair normal liver function.
  • ALD can progress from fatty liver to more severe liver disease, and different forms can occur at the same time.
  • The three most common forms of ALD are fatty liver, alcoholic hepatitis, and cirrhosis.
  • Fatty liver is usually benign and reversible when alcohol use is controlled, but it can progress to more fatal diseases.
  • Alcoholic hepatitis causes liver inflammation with symptoms such as swelling, abdominal pain, nausea, fever, jaundice, and vomiting.
  • Excessive alcohol destroys liver cells; inflammation, scarring, and regenerative nodules can produce cirrhosis.
  • Cirrhosis blocks blood flow and causes wastes and toxins to build up in the body.
  • Cirrhosis cannot strictly be cured, but medical treatment, stopping alcohol use, and complication management can halt or control it.
  • Cirrhosis symptoms include ascites, abdominal pain, fever, thirst, confusion, and fatigue.
  • According to the CDC, 14,406 Americans died from alcohol-related liver diseases in 2007.
  • Not every heavy drinker develops or dies from liver disease, and cirrhosis is not always caused by alcoholism.
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Liver Disease

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Human Nutrition

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"Alcohol stimulates the release of epinephrine from the kidneys. Epinephrine binds to receptors in the liver cells to stimulate the release of glucagon from the pancreas. Glucagon and epinephrine stimulate glycogenolysis in the liver cells. Epinephrine also stimulates the breakdown of triglycerides and glycerol into free fatty acids in adipose tissue and are released into the bloodstream and travel to the liver. A portion of these triglycerides are stored in the liver cells; while, the remainder of these triglycerides are converted to very low density lipoprotein (VLDL). The increased accumulation of both stored triglycerides and VLDL particles inside the liver cells causes a condition called fatty liver or hepatic steatosis. This can impair normal liver function. The more alcohol consumed, the more lipids produced and stored inside the liver cells. These effects are cumulative over time. According to the CDC, 14,406 Americans died from alcohol-related liver diseases in 2007. Although not every alcoholic or heavy drinker will die from liver problems, the liver is one of the body’s main filtering organs and is severely stressed by alcohol abuse. The term Alcoholic Liver Disease (ALD) is used to describe liver problems linked to excessive alcohol intake. ALD can be progressive, with individuals first suffering from a fatty liver and going on to develop cirrhosis. It is also possible to have different forms of ALD at the same time. Excessive alcohol consumption causes the destruction of liver cells. In an attempt to repair itself, the liver initiates an inflammatory and reparation process causing scar tissue to form. In the liver’s attempt to replace the dead cells, surviving liver cells multiply. The result is clusters of newly formed liver cells, also called regenerative nodules, within the scar tissue. This state is called cirrhosis of the liver. The three most common forms of ALD are: Fatty liver. A rather benign disorder that develops after excessive alcohol consumption; however it can progress to more fatal diseases. Fatty liver is reversible if alcohol use is brought under control. Alcoholic hepatitis. The symptoms of this alcohol-induced liver inflammation are a swollen liver, abdominal pain, nausea, fever, jaundice, and vomiting. Although linked to alcohol use, even people who drink moderately can sometimes develop this condition, and not all alcohol abusers do. If a person stops drinking alcohol, the liver damage can be reversed. But if they continue, cirrhosis may develop and death can result. Cirrhosis. This serious and sometimes fatal form of ALD develops when liver cells die and form scar tissue, which blocks blood flow and causes wastes and toxins to build up in the system. Strictly speaking, cirrhosis cannot be cured. It can, however, be stopped with medical treatment and complications can be managed if the individual stops drinking, and many do survive. Not all cases of cirrhosis are strictly due to alcoholism, and not all alcoholics develop the disease. Symptoms of cirrhosis include the buildup of abdominal fluid (ascites), abdominal pain, fever, thirst, confusion, and fatigue."

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