Bladder Biopsy Section
Bladder Biopsy Section - Related Videos
06:10
Visualization of Bacteria in Bladder Biopsy Sections via Fluorescence In Situ Hybridization
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2025
This video demonstrates the visualization of bacteria in deparaffinized bladder tissue from a urinary tract-infected patient. Fluorescently-labeled probe hybridized with bacterial 16s ribosomal RNAs reveals the tissue-associated bacteria and their distribution, providing valuable spatial insights into their density within the sample.
04:15
Bladder Tumor Organoid Model: A Method for Orthotopic Transplantation of Bladder Organoids into Recipient Murine Bladder
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2023
In this video, we describe the orthotopic transplantation of cultured bladder tumor organoids into the murine bladder to study the role of the organ environment on developing tumors.
11:46
Urinary Bladder Distention Evoked Visceromotor Responses as a Model for Bladder Pain in Mice
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Cited by 19 •
2014
Approximately 3-8 million people in the United States suffer from interstitial cystitis/bladder pain syndrome (IC/BPS), a debilitating condition characterized in part by pelvic pain. In order to study nervous system contributions to the condition, a physiological model of urinary bladder pain is used in mice and rats.
03:48
Mouse Bladder Wall Injection
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Cited by 34 •
2011
Mouse bladder wall injection is a useful approach to orthotopically study bladder stem cell and cancer biology. This delicate microsurgical method can be mastered with careful technique and practice.
08:08
The Use of Cystometry in Small Rodents: A Study of Bladder Chemosensation
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Cited by 42 •
2012
Cystometry is an efficient technique to measure bladder function of small animals in vivo. The bladder is continuously infused at rates controlled through an intravesical catheter, whereas the urethra is left free for micturition. This allows for repetitive filling and emptying of the bladder, while intravesical pressure and voided volume are recorded.
FAQs
The processing sequence preserves different layers of information. Fixation helps maintain tissue morphology, embedding provides support for producing thin sections, and staining creates contrast that makes epithelial injury, inflammatory changes, microorganisms, and other abnormalities visible. Together, these steps allow microscopic observations to reflect both bladder-wall structure and the cellular events occurring within it.
Immune-cell infiltration is interpreted through its location within the bladder tissue rather than as an isolated cell count. A section can show where inflammatory cells occur relative to epithelial injury and other abnormalities, giving immunology studies spatial evidence of tissue involvement. This helps connect the host response with visible structural changes in the same specimen.
Immunohistochemistry adds marker-specific information to the morphology seen in a stained section. It can identify selected cellular or microbial markers within the bladder wall, allowing investigators to associate a visible tissue abnormality with a particular target. In infection research, this supports focused examination of host–pathogen interactions beyond structural assessment alone.
Examining epithelial injury, inflammation, and microorganisms together helps distinguish the tissue response from its surrounding structural context. These features provide complementary evidence: epithelial changes show damage, inflammatory findings indicate a host response, and microbial visualization can support infection-related investigation. Their combined assessment strengthens interpretation of disease-related changes in the bladder section.
A basic workflow moves from excision to preservation, support, sectioning, and visualization. The specimen is first fixed, then embedded in a supporting medium, cut into thin slices, and stained for microscopic examination. If marker localization is needed, the resulting section can also support immunohistochemical analysis of selected cellular or microbial targets.
Researchers can compare tissue damage across experimental or clinical samples by examining corresponding structural and cellular findings in their sections. The same approach can reveal differences in epithelial injury, inflammation, microorganisms, or marker localization. Such comparisons provide a tissue-level basis for evaluating how disease-related changes vary between sample groups.
In immunology and infection research, these sections connect tissue architecture with cellular and microbial evidence. They can reveal immune-cell infiltration, show epithelial or other structural abnormalities, and localize selected cellular or microbial markers within the bladder wall. This combination supports analysis of host responses, tissue damage, and host–pathogen interactions in experimental or clinical material.