Related Experiment Video

Updated: Jun 3, 2026

A Protocol for Constructing a Rat Wound Model of Type 1 Diabetes
05:18

A Protocol for Constructing a Rat Wound Model of Type 1 Diabetes

Published on: February 17, 2023

[Molecular mechanisms of diabetic wound healing]

Lu Tie1, Yilixiati Xiaokaiti, Xian Wang

  • 1State Key Laboratory of Natural & Biomimetic Drugs and Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing 100191, China.

Sheng Li Ke Xue Jin Zhan [Progress in Physiology]
|March 23, 2011
PubMed

Insights

Diabetic wounds heal slowly due to complex molecular issues. This review explores factors like growth factors and reactive oxygen species (ROS) impacting healing.

Area of Science:

  • Biomedical Science
  • Molecular Biology
  • Wound Healing Research

Context:

  • Refractory wounds are a severe diabetic complication, often leading to amputation and hospitalization.
  • Current treatment options for diabetic wounds are limited.
  • The precise molecular mechanisms behind delayed diabetic wound healing are not fully understood.

Purpose:

  • To review recent findings on the molecular mechanisms that impair diabetic wound healing.
  • To elucidate the complex biological processes involved in delayed wound closure in diabetic patients.

Summary:

  • Delayed diabetic wound healing involves multiple molecular factors.
  • Key contributors include dysregulated growth factors, altered nitric oxide (NO) and reactive oxygen species (ROS) levels, matrix metalloproteinases (MMPs), microRNA, and endothelial progenitor cells (EPCs).

Impact:

  • Provides a comprehensive overview of molecular mechanisms in diabetic wound healing.
  • Highlights areas for future research and potential therapeutic targets.
  • Aims to improve understanding and management of refractory diabetic wounds.

More Related Videos

Protocol to Create Chronic Wounds in Diabetic Mice06:55

Protocol to Create Chronic Wounds in Diabetic Mice

Published on: September 25, 2019

Related Concept Videos

Diabetic Foot Ulcer01:31

Diabetic Foot Ulcer

Definition A diabetic foot ulcer (DFU) is a chronic, non-healing wound that develops in individuals with diabetes. It typically occurs on pressure-bearing areas such as the heel, metatarsal heads, or hallux, and carries a high risk of infection and amputation.Pathophysiology • The development of DFUs can be explained by four interconnected mechanisms: neuropathy, ischemia, infection, and impaired wound healing. • Neuropathy is the most common factor. Sensory neuropathy reduces pain perception,...
Diabetic Neuropathy01:22

Diabetic Neuropathy

DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
Type I Diabetes II: Pathophysiology01:26

Type I Diabetes II: Pathophysiology

Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
Type II Diabetes II: Pathophysiology01:24

Type II Diabetes II: Pathophysiology

PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
Phases of Wound Repair01:28

Phases 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...