Diabetic Skin Wounds
Diabetic Skin Wounds - Related Videos
08:35
Demonstration of the Rat Ischemic Skin Wound Model
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Cited by 32 •
2015
The rat, due to its size, availability, and rather docile behavior, has been utilized as a research model for many years. The goal of this protocol is to utilize the rat as an ischemic skin wound healing model to provide valuable insight into the pathophysiology of chronic wounds.
08:35
Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding
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Cited by 53 •
2015
The goal of this protocol is to build up a three-dimensional full thickness skin equivalent, which resembles natural skin. With a specifically constructed automated wounding device, precise and reproducible wounds can be generated under maintenance of sterility.
09:20
A Mouse Fetal Skin Model of Scarless Wound Repair
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Cited by 24 •
2015
During mammalian development, early gestational skin wounds heal without a scar. Here we detail a reliable and reproducible model of fetal scarless wound healing in the cutaneous dorsum of E16.5 (scarless) and E18.5 (scarring) mouse embryos.
09:15
Come to the Light Side: In Vivo Monitoring of Pseudomonas aeruginosa Biofilm Infections in Chronic Wounds in a Diabetic Hairless Murine Model
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Cited by 8 •
2017
Here we describe a novel diabetic murine model utilizing hairless mice for real-time, non-invasive, monitoring of biofilm wound infections of bioluminescent Pseudomonas aeruginosa. This method can be adapted to evaluate infection of other bacterial species and genetically modified microorganisms, including multi-species biofilms, and test the efficacy of antibiofilm strategies.
02:20
Generating an Excisional Skin Wound in a Mouse Model via Punch Biopsy
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2025
This video demonstrates a punch biopsy procedure to create a precise wound in a mouse model. The excision exposes the subcutaneous layer of the skin, providing a suitable site for studying immune responses to localized pathogen infection.
FAQs
Persistent hyperglycemia and inadequate blood flow create conditions that sustain inflammation, increase oxidative stress, and restrict angiogenesis, the formation of new blood vessels. Together, these disturbances reduce the support available for tissue repair and prolong the wound-healing process. They also help explain why damaged tissue remains vulnerable to infection and progressive tissue loss.
Several coordinated repair behaviors become defective, including keratinocyte migration, fibroblast activity, extracellular matrix deposition, and re-epithelialization. Keratinocytes are important for restoring the surface, while fibroblasts and matrix deposition contribute to tissue rebuilding. When these activities become poorly coordinated, closure is delayed and the wound fails to progress efficiently through repair.
Angiogenesis supports the repair environment by contributing to vascular growth at the injured site. In diabetic skin wounds, limited angiogenesis occurs alongside persistent inflammation and oxidative stress, creating a mutually disruptive repair setting. Studying this relationship helps explain why restoring vascular growth is a central goal of regenerative approaches to improve wound closure.
Developmental biology offers a comparison between disrupted adult repair programs and the coordinated signaling, cell behaviors, and tissue remodeling that shape developing skin. Researchers can use this framework to examine where wound healing loses coordination, including epithelial restoration, vascular growth, matrix formation, and inflammatory balance. These comparisons help identify repair processes that regenerative strategies may aim to restore.
A useful model should represent the major repair activities described for diabetic skin wounds: coordinated signaling, keratinocyte migration, fibroblast activity, extracellular matrix deposition, angiogenesis, re-epithelialization, and inflammatory regulation. Examining these features together is important because delayed closure reflects disruption across several interacting tissue processes rather than failure of a single cellular event.
Diabetic skin wound models can provide a framework for testing approaches designed to restore vascular growth, epithelial repair, and balanced inflammation. Their developmental biology context allows researchers to compare abnormal repair with more coordinated tissue-building programs. This comparison can clarify whether an approach addresses the cellular and tissue-level disruptions associated with delayed closure.