Liver Stress
Liver Stress - Related Videos
12:35
In vivo Liver Endocytosis Followed by Purification of Liver Cells by Liver Perfusion
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Cited by 14 •
2011
The study of liver sinusoidal endothelial cells (SECs) must be performed with primary cells obtained from the animal as no cell lines exist. This method relies on liver digestion and differential centrifugation for SEC purification for subsequent culturing and experimentation.
11:38
A Flow Adhesion Assay to Study Leucocyte Recruitment to Human Hepatic Sinusoidal Endothelium Under Conditions of Shear Stress
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Cited by 31 •
2014
Leucocyte recruitment to the liver occurs within the specialized channels of the hepatic sinusoids which are lined by unique hepatic sinusoidal endothelial cells. Phase contrast microscopy of leucocyte recruitment across human hepatic sinusoidal endothelium under conditions of physiological shear stress can facilitate the elucidation of the molecular mechanisms which underlie this process.
12:13
Ex Situ Normothermic Machine Perfusion of Donor Livers
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Cited by 21 •
2015
Here we present a protocol describing oxygenated ex situ machine perfusion of donor liver grafts. This article contains a step by step protocol to procure and prepare the liver graft for machine perfusion, prepare the perfusion fluid, prime the perfusion machine and perform oxygenated normothermic machine perfusion of the liver graft.
08:37
Liver Cold Storage and Transplantation in the Cold-Adaptive Daurian Ground Squirrels
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2025
Here, we present a protocol to establish a long-term liver cold storage and transplantation model in Daurian ground squirrel (DGS), which has been technically challenging in standard rodent models.
09:24
Decellularization and Recellularization of Whole Livers
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Cited by 39 •
2011
Perfusion decellularization is a novel technique to produce whole liver scaffolds that retains the organ's extracellular matrix composition and microarchitecture. Herein, the method of preparing whole organ scaffolds using perfusion decellularization and subsequent repopulation with hepatocytes is described. Functional and transplantable liver grafts can be generated using this technique.
FAQs
Damage to mitochondrial activity and antioxidant defenses is a central cellular consequence. Mitochondria support cellular metabolism, while antioxidant defenses limit oxidative stress; when these systems are disrupted, oxidative damage can increase and normal hepatocyte function can decline. This connection helps researchers relate an initiating stressor, such as a drug or metabolic imbalance, to subsequent liver injury.
Oxidative stress, inflammatory signaling, and endoplasmic reticulum stress represent connected responses to disrupted hepatocyte homeostasis. Mitochondrial dysfunction and weakened antioxidant defenses can accompany oxidative stress, while inflammatory and endoplasmic reticulum responses provide additional indicators of cellular disturbance. Examining these pathways together gives a broader picture than measuring impaired metabolism alone and reveals multiple dimensions of injury.
Persistence matters because ongoing hepatocyte stress can progress from altered cell function to hepatocyte death, fibrosis, or broader liver dysfunction. This progression links cellular events with tissue-level outcomes. In biology, tracking whether stress continues therefore helps frame disease mechanisms and toxicity severity, rather than treating mitochondrial, inflammatory, or metabolic changes as isolated findings.
A useful investigation can begin by relating a suspected trigger, such as excessive alcohol, a drug, metabolic imbalance, or infection, to changes in hepatocyte biology. Researchers can then examine mitochondrial activity, antioxidant defenses, inflammatory signaling, endoplasmic reticulum stress, and cellular metabolism. This framework connects the initiating condition with injury mechanisms and supports interpretation of downstream liver effects.
It provides a biological framework for evaluating whether a drug disrupts hepatocyte function or activates pathways associated with injury. Studies can consider mitochondrial activity, antioxidant defenses, inflammatory signaling, endoplasmic reticulum stress, and metabolism when examining drug-related effects. The resulting mechanistic information supports drug-safety assessment and can help identify biomarkers that signal liver injury.
Biomarker research can help identify measurable signs associated with liver injury and connect them to underlying cellular stress pathways. In this context, biomarkers may support recognition of hepatocyte damage, comparison of toxicity mechanisms, and evaluation of whether liver function is being impaired. Their value lies in translating complex cellular responses into information useful for biomedical investigation.
Studying liver stress links cellular disturbances with broader disease outcomes. Researchers can examine how altered mitochondria, weakened antioxidant defenses, inflammatory signaling, endoplasmic reticulum stress, and impaired metabolism contribute to hepatocyte death, fibrosis, or liver dysfunction. This biological context also informs strategies intended to protect hepatocytes or restore liver function, extending the work beyond description of injury.