Search results
Results from the WOW.Com Content Network
Necrosis can be activated by components of the immune system, such as the complement system; bacterial toxins; activated natural killer cells; and peritoneal macrophages. [1] Pathogen-induced necrosis programs in cells with immunological barriers (intestinal mucosa) may alleviate invasion of pathogens through surfaces affected by inflammation. [1]
Liquefactive necrosis (or colliquative necrosis) is a type of necrosis which results in a transformation of the tissue into a liquid viscous mass. [1] Often it is associated with focal bacterial or fungal infections, and can also manifest as one of the symptoms of an internal chemical burn . [ 2 ]
Acute inflammation of the lung (usually in response to pneumonia) does not cause pain unless the inflammation involves the parietal pleura, which does have pain-sensitive nerve endings. [15] Heat and redness are due to increased blood flow at body core temperature to the inflamed site. Swelling is caused by accumulation of fluid.
Caseous necrosis or caseous degeneration [1] (/ ˈ k eɪ s i ə s /) [2] is a unique form of cell death in which the tissue maintains a cheese-like appearance. [3] Unlike with coagulative necrosis, tissue structure is destroyed. Caseous necrosis is enclosed within a granuloma. Caseous necrosis is most notably associated with tuberculoma. The ...
Fat necrosis may result from various injuries to adipose tissue, including: physical trauma, enzymatic digestion of adipocytes by lipases, [3] radiation therapy, [4] hypoxia, or inflammation of subcutaneous fat (panniculitis). The gross appearance of fat necrosis is as an irregular, chalky white area within otherwise normal adipose tissue. [1]
Tumor necrosis factor-alpha (TNF-alpha) is an inflammatory cytokine produced upon acute inflammation and is an important signaling molecule responsible for inducing apoptosis or necrosis. [26] TNF-alpha exerts its effects by binding to various membrane receptors that belong to the TNF Receptor superfamily.
Coagulative necrosis can be induced for treatments of cancers. Radiofrequency (RF) energy can be used in liver resection surgeries to produce coagulative necrosis, creating a coagulative necrosis zone. This coagulates the liver resection margins and is useful in liver resection surgeries for helping to stop bleeding within the resection margin ...
Chronic systemic inflammation is the result of release of pro-inflammatory cytokines from immune-related cells and the chronic activation of the innate immune system.It can contribute to the development or progression of certain conditions such as cardiovascular disease, cancer, diabetes mellitus, chronic kidney disease, non-alcoholic fatty liver disease, autoimmune and neurodegenerative ...