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Cell damage (also known as cell injury) is a variety of changes of stress that a cell suffers due to external as well as internal environmental changes. Amongst other causes, this can be due to physical, chemical, infectious, biological, nutritional or immunological factors. Cell damage can be reversible or irreversible.
Fibrosis can occur in many tissues within the body, typically as a result of inflammation or damage. Common sites of fibrosis include the lungs, liver, kidneys, brain, and heart: Micrograph showing cirrhosis of the liver. The tissue in this example is stained with a trichrome stain, in which fibrosis is colored blue.
The primary cause triggers an uncontrolled inflammatory response. [citation needed] Sepsis is the most common cause of multiple organ dysfunction syndrome and may result in septic shock. In the absence of infection, a sepsis-like disorder is termed systemic inflammatory response syndrome (SIRS). Both SIRS and sepsis could ultimately progress to ...
Coagulative necrosis occurs primarily in tissues such as the kidney, heart and adrenal glands. [6] Severe ischemia most commonly causes necrosis of this form. [8] Liquefactive necrosis (or colliquative necrosis), in contrast to coagulative necrosis, is characterized by the digestion of dead cells to form a viscous liquid mass. [7]
Coagulative necrosis is a type of accidental cell death typically caused by ischemia or infarction. In coagulative necrosis, the architectures of dead tissue are preserved for at least a couple of days. [1] It is believed that the injury denatures structural proteins as well as lysosomal enzymes, thus blocking the proteolysis of the damaged cells.
End organ damage is severe impairment of major body organs due to systemic disease. Commonly this is referred to in diabetes , high blood pressure , or states of low blood pressure or low blood volume. [ 1 ]
Additionally, patients with aHUS typically present with an abrupt onset of systemic signs and symptoms such as acute kidney failure, [15] hypertension (high blood pressure), [19] myocardial infarction (heart attack), [23] stroke, [14] lung complications, [23] pancreatitis (inflammation of the pancreas), [21] liver necrosis (death of liver cells ...
The restored blood flow reintroduces oxygen within cells that damages cellular proteins, DNA, and the plasma membrane. Damage to the cell's membrane may in turn cause the release of more free radicals. Such reactive species may also act indirectly in redox signaling to turn on apoptosis.