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Related Concept Videos

Phases of Wound Repair01:28

Phases of Wound Repair

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Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
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Regeneration and repair processes are critical in healing damages caused by injury, disease, and aging. In regeneration, the damaged tissue is entirely replaced with new growth that restores the original architecture and function. In contrast, tissue repair usually results in a fixed tissue architecture involving scar formation. Scars generally do not reestablish tissue function and may also exhibit structural abnormalities at the injury site.
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Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
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Related Experiment Video

Updated: Nov 30, 2025

Protocol to Create Chronic Wounds in Diabetic Mice
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[Non-healing wounds].

Francine C van Erp1,2, Charlotte G M Sassen3, Cathelijn B den Hartog-Jorissen4

  • 1Universitair Medisch Centrum Utrecht, afd. dermatologie, Utrecht.

Nederlands Tijdschrift Voor Geneeskunde
|November 17, 2020
PubMed
Summary

Non-healing wounds require prompt diagnosis beyond basic wound care. Recognizing red flags like severe pain and atypical presentation is crucial for effective treatment and patient outcomes.

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Area of Science:

  • Dermatology
  • Vascular Medicine
  • Wound Healing

Background:

  • Increasing incidence of non-healing wounds necessitates accurate diagnosis.
  • Delayed diagnosis can impede effective treatment and worsen patient prognosis.
  • Standard wound care alone is insufficient without identifying the root cause.

Observation:

  • Three female patients (50, 65, 85 years) presented with pyoderma gangraenosum, livedoid vasculopathy, and Martorell hypertensive ischaemic leg ulcer.
  • Initial treatment focused on local wound care without a definitive diagnosis.
  • Warning signs such as severe pain, atypical wound characteristics, and lack of healing were overlooked.

Findings:

  • Severe pain, atypical location/appearance, and progression despite care are critical red flags.
  • Prompt referral and comprehensive diagnostic workup are essential for non-healing wounds.
  • Multidisciplinary teams accelerate diagnosis and treatment planning for complex wounds.

Implications:

  • Early recognition of red flags can prevent diagnostic delays.
  • Integrated, multidisciplinary wound care improves diagnostic accuracy and management.
  • Coordinated follow-up by wound care teams enhances patient care in home settings.