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Liver regeneration is the process by which the liver is able to replace damaged or lost liver tissue. The liver is the only visceral organ with the capacity to regenerate. [1] [2] The liver can regenerate after partial hepatectomy or injury due to hepatotoxic agents such as certain medications, toxins, or chemicals. [3]
A hepatotoxin (Gr., hepato = liver) is a toxic chemical substance that damages the liver.. It can be a side-effect, but hepatotoxins are also found naturally, such as microcystins and pyrrolizidine alkaloids, or in laboratory environments, such as carbon tetrachloride, or far more pervasively in the form of ethanol (drinking alcohol).
A study demonstrated that HepaRG cells can be incorporated into a microfluidic system to form a functional bio-artificial liver capable of detoxifying ammonia and other harmful substances. [16] In another study, a modular extracorporeal liver support system, which combines HepaRG cells with a bioartificial scaffold was created to support liver ...
Cirrhosis, also known as liver cirrhosis or hepatic cirrhosis, chronic liver failure or chronic hepatic failure and end-stage liver disease, is an acute condition of the liver in which the normal functioning tissue, or parenchyma, is replaced with scar tissue and regenerative nodules as a result of chronic liver disease.
The hepatocyte plates are one cell thick in mammals and two cells thick in the chicken. Sinusoids display a discontinuous, fenestrated endothelial cell lining. The endothelial cells have no basement membrane and are separated from the hepatocytes by the space of Disse , which drains lymph into the portal tract lymphatics .
Histologically speaking, hepatocytes have specific characteristics. Their nuclei are large and spheroidal, occupying the center of the cell. There is at least one nucleolus in each nucleus. In the adult liver, most of the cells are binucleated, and most of the hepatocytes are tetraploid, which means that they have four times the amount of ...
Hepatotoxicity and drug-induced liver injury also account for a substantial number of compound failures, highlighting the need for toxicity prediction models (e.g. DTI), [2] and drug screening assays, such as stem cell-derived hepatocyte-like cells, that are capable of detecting toxicity early in the drug development process. [3]
Regeneration in biology is the process of renewal, restoration, and tissue growth that makes genomes, cells, organisms, and ecosystems resilient to natural fluctuations or events that cause disturbance or damage. [1] Every species is capable of regeneration, from bacteria to humans.