Hepatic Necrosis
Hepatic Necrosis - Related Videos
01:16
Necrosis
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2023
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”. Morphological Manifestations of Necrosis Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
10:40
Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model
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Cited by 10 •
2012
An optical system was developed to visualize hepatic microcirculation with FITC-labeled erythrocytes and to measure the partial pressure of oxygen in the microvessels with laser-assisted phosphorimetry. This method can be used to investigate physiological and pathological mechanisms by analyzing microvascular structure, diameter, blood flow velocity, and oxygen tension.
02:12
Muscle Necrosis Assay in C. elegans Induced by a Pathogenic Aeromonas Strain
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2026
Source: Chen, Y. et. al., Evaluating Virulence and Pathogenesis of Aeromonas Infection in a Caenorhabditis elegans Model. J. Vis. Exp. (2018)This video demonstrates a muscle necrosis assay in C. elegans (Caenorhabditis elegans) using pathogenic Aeromonas strains. By feeding green fluorescent protein (GFP)-expressing worms on Aeromonas-seeded plates, the assay models bacterial infection and reveals tissue damage through fluorescence imaging. The progressive loss of muscle structure and GFP...
09:35
Development of a Hepatitis B Virus Reporter System to Monitor the Early Stages of the Replication Cycle
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Cited by 2 •
2017
Here we describe a newly developed hepatitis B virus (HBV) reporter system to monitor the early stages of the HBV life cycle. This simplified in vitro system will aid in the screening of anti-HBV agents using a high-throughput strategy.
01:16
Cellular Injury IV: Necrosis
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2026
Necrosis is a form of irreversible cell death caused by severe injury such as ischemia, toxins, or trauma. Unlike programmed cell death, it is an uncontrolled, pathological process that typically provokes inflammation in surrounding tissues.Pathophysiologic ChangesNecrosis begins when cells sustain critical damage, leading to swelling of organelles, particularly mitochondria, and rapid ATP depletion. As energy levels decline, membrane ion pumps fail, leading to calcium influx and eventually,...
FAQs
Severe injury first disrupts hepatocyte energy production, leaving cells unable to maintain essential functions and membrane integrity. As membranes lose their stability, intracellular contents escape and the cells undergo lysis. This sequence explains why hepatic necrosis can produce both direct loss of liver tissue and measurable biochemical evidence of cell injury.
These triggers begin with different types of cellular stress, but each can produce the same damaging endpoint. Inadequate blood supply limits the resources needed for cellular energy production, whereas chemicals, drug reactions, or viral infection directly disturb hepatocyte function. Identifying the initiating factor helps clinicians interpret the injury and consider its potential cause.
The initial hepatocyte injury can activate an inflammatory response in surrounding liver tissue. Inflammation may extend damage beyond the cells affected first, increasing the amount of tissue lost. This matters clinically because the final impairment may reflect both the original insult and the secondary spread of injury, rather than the initial cell death alone.
As liver tissue is lost, the organ may become less able to perform metabolism, detoxification, bile production, and blood clotting. The clinical importance therefore depends not only on the presence of necrotic cells, but also on how much essential liver function has been affected. Assessing these consequences helps indicate disease severity.
Evaluation combines symptoms with laboratory testing, imaging, and, when needed, biopsy. Laboratory findings can support recognition of hepatocyte injury through released intracellular enzymes, while imaging examines the liver and biopsy provides direct tissue assessment. Using several approaches together helps clinicians identify the injury, evaluate its extent, and judge its clinical significance.
Recognition supports diagnosis and severity assessment, which guide subsequent clinical decisions. Findings from symptoms, laboratory tests, imaging, and biopsy can help determine whether treatment should focus on the underlying injury and its consequences. When liver damage is severe, the evaluation also contributes to considering whether the patient may require assessment for liver transplantation.