Colonic Mucosal Inflammation
Colonic Mucosal Inflammation - Related Videos
06:16
Cryosectioning Method for Microdissection of Murine Colonic Mucosa
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Cited by 5 •
2015
Here we describe a simple method for the isolation of spatially distinct murine colonic epithelial surface cells from the underlying crypt-base cells.
03:23
Assessment of Chemical-Induced Colitis via Immunohistochemical Analysis of Colon Tissue Sections
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2025
This video demonstrates the assessment of chemical-induced colitis via immunohistochemical staining of mouse colon tissue. In a stained tissue section, the presence of a large number of immune-responsive cells in the damaged tissue represents the infiltration of immune cells during colitis.
01:38
Inflammation
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2019
Overview In response to tissue injury and infection, mast cells initiate inflammation. Mast cells release chemicals that increase the permeability of adjacent blood capillaries and attract additional immune cells to the wound or site of infection. Neutrophils are phagocytic leukocytes that exit the bloodstream and engulf invading microbes. Blood clotting platelets seal the wound and fibers create a scaffold for wound healing. Macrophages engulf aging neutrophils to end the acute inflammatory...
08:43
Investigating Intestinal Inflammation in DSS-induced Model of IBD
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Cited by 607 •
2012
Experimental models of inflammatory bowel disease have allowed us to examine the complex innate and adaptive immune responses associated with pathogenesis. Using histological scoring, quantification of pro-inflammatory cytokines and myeloperoxidase activity, one can begin to assess these responses seen in inflammatory bowel disease.
03:20
Electrophysiological Recording from Colonic Afferent Nerves in an Ex Vivo Rat Colon
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2025
This video demonstrates a method to record the activity of colonic afferent nerves in an ex-vivo rat colon, cannulated at both ends and infused with saline to increase intraluminal pressure. As pressure increases, the nerve signal rises, indicating its stimulation.
FAQs
The process can be understood as a linked sequence: epithelial barrier injury or microbial and other stimuli activate immune cells in the colonic mucosa. Those cells release inflammatory mediators, which then promote leukocyte recruitment into the mucosa. This progression connects an initiating disturbance with local inflammatory activity and helps explain how tissue dysfunction can develop in gastrointestinal disease.
Barrier integrity is a central control point because injury to the epithelial lining can allow microbial or other stimuli to participate in immune activation. This relationship makes barrier status relevant to disease interpretation and to research aimed at restoring epithelial integrity. It also links tissue protection with regulation of the immune response in the colon.
Inflammatory mediators matter because they connect immune-cell activation with a broader local response. Their release promotes recruitment of leukocytes into the mucosa, increasing cellular participation in inflammation. This step helps explain how an initial epithelial or microbial stimulus can develop into tissue-level inflammatory activity relevant to gastrointestinal disease.
Assessment generally combines endoscopic, histological, and molecular findings rather than relying on a single type of evidence. Together, these approaches characterize colonic mucosal inflammation and provide information that supports diagnosis or monitoring. Using multiple levels of observation also connects tissue appearance with microscopic and molecular features relevant to gastrointestinal disease.
Its clinical relevance comes from the symptoms it can accompany, including diarrhea, abdominal pain, and rectal bleeding. The process also helps explain gastrointestinal disease more broadly, while assessment findings may support evaluation of conditions such as inflammatory bowel disease. Thus, inflammation links tissue-level changes with a patient's clinical presentation.
Mechanistic study points toward two complementary therapeutic goals: restoring epithelial barrier integrity and regulating intestinal immunity. These goals reflect the processes that connect barrier injury or microbial stimuli with immune activation and leukocyte recruitment. In medicine, they provide a framework for investigating treatments intended to reduce harmful inflammation while improving the tissue environment.