Related Experiment Video
Updated: Jul 17, 2026
09:34
Scratch Migration Assay and Dorsal Skinfold Chamber for In Vitro and In Vivo Analysis of Wound Healing
Published on: September 26, 2019
Timing of skin wounds
1Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, Japan. kondot@wakayama-med.ac.jp
Legal Medicine (Tokyo, Japan)
|February 6, 2007
Summary
Determining wound age and vitality is crucial in forensic pathology. Recent advancements in immunohistochemistry and chemical analysis, focusing on markers like collagen, cytokines, and growth factors, enhance forensic wound age determination.
Area of Science:
- Forensic Pathology
- Dermatology
- Biochemistry
Background:
- Wound examination is essential in forensic practice for evaluating the relationship between death and injuries.
- Determining wound vitality or age is a critical, ongoing challenge in forensic pathology.
- Skin wound healing involves distinct phases: inflammation, proliferation, and maturation.
Purpose of the Study:
- To provide an overview of wound healing processes relevant to forensic medicine.
- To highlight advancements in determining wound vitality and age.
- To discuss the utility of biological markers in forensic wound analysis.
Main Methods:
- Review of biological substances involved in wound repair.
- Application of immunohistochemistry and chemical analyses.
- Analysis of collagens, cytokines, and growth factors as potential markers.
Main Results:
- Skin wound healing is a complex biological process with identifiable phases.
- Immunohistochemistry and chemical analyses have improved wound age determination.
- Collagens, cytokines, and growth factors show promise as reliable markers for wound vitality and age.
Conclusions:
- Understanding wound healing mechanisms is vital for forensic pathology.
- Advanced analytical techniques and specific biomarkers significantly aid in forensic wound age assessment.
- These findings contribute to the practical capabilities of forensic pathologists in wound analysis.
Related Concept Videos
01:28Phases of Wound Repair
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.
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
01:19Clinical Applications of Epidermal Stem Cells
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 EpiSCs...
01:24Healing II: Complications
Complications during healing arise when tissue repair is altered by local or systemic factors. These changes involve abnormal collagen deposition, altered biomechanics, and reduced vascular supply, impairing restoration of normal structure and function.Loss of FunctionScar tissue differs significantly from the original tissue it replaces. In the skin, fibrosis lacks adnexal structures such as hair follicles, sebaceous glands, and sweat glands. Their absence reduces tactile sensitivity, impairs...
01:22Burn Injuries
Burn injuries occur when the skin and underlying tissues are damaged due to exposure to heat, electricity, chemicals, radiation, or friction. They can vary in severity, from minor superficial burns to severe deep burns that can be life-threatening.
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...