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Related Concept Videos

Diabetic Foot Ulcer01:31

Diabetic Foot Ulcer

33
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...
33
Diabetic Retinopathy01:27

Diabetic Retinopathy

55
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...
55
Impact of Pharmacokinetic–Pharmacodynamic Models: Regulatory Decisions01:15

Impact of Pharmacokinetic–Pharmacodynamic Models: Regulatory Decisions

97
PK–PD modeling has significantly influenced FDA regulatory decisions, particularly drug approval, dosage optimization, and labeling. These models integrate pharmacokinetics (PK) and pharmacodynamics (PD) to predict drug behavior and effects, aiding in optimizing dosing regimens and enhancing the probability of clinical trial success.One notable example is Nesiritide (Natrecor®), a recombinant human brain natriuretic peptide for treating acute decompensated congestive heart failure...
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Automated Microbial Diagnostics01:24

Automated Microbial Diagnostics

77
Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
77
Pathophysiology of Diabetes01:20

Pathophysiology of Diabetes

3.9K
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
3.9K
Diabetic Neuropathy01:22

Diabetic Neuropathy

59
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...
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Related Experiment Video

Updated: May 5, 2026

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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Come to the Light Side: In Vivo Monitoring of Pseudomonas aeruginosa Biofilm Infections in Chronic Wounds in a Diabetic Hairless Murine Model

Published on: October 10, 2017

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More Detection, Better Decisions? Rethinking Pathogen-Driven Therapy in Diabetic Foot Infections.

Irene Terzi1, Karolina Akinosoglou1

  • 1Department of Internal Medicine, School of Medicine, University of Patras, 26504 Rio, Greece.

The International Journal of Lower Extremity Wounds
|May 4, 2026
PubMed
Summary
This summary is machine-generated.

Advanced molecular diagnostics for diabetic foot infections (DFIs) increase pathogen detection but don't consistently improve treatment outcomes. Integrating microbiology with comprehensive care is key for better healing.

Keywords:
culture-based methodsdiabetic foot infectionsmicrobiological diagnosticsmolecular diagnosticspathogen-driven therapy

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Last Updated: May 5, 2026

Come to the Light Side: In Vivo Monitoring of Pseudomonas aeruginosa Biofilm Infections in Chronic Wounds in a Diabetic Hairless Murine Model
09:15

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Medical Diagnostics

Background:

  • Diabetic foot infections (DFIs) require pathogen-driven therapy guided by microbiological identification.
  • Diagnostic methods have evolved from conventional cultures to advanced molecular sequencing, enhancing pathogen detection.
  • The clinical utility of expanded diagnostic capabilities in DFIs remains unclear.

Purpose of the Study:

  • To review the roles and limitations of various diagnostic methods in managing DFIs.
  • To assess whether increased pathogen detection translates to improved therapeutic decisions and patient outcomes.
  • To identify the persistent interpretative gap between diagnostic capacity and clinical action.

Main Methods:

  • Narrative review of culture-based methods, antimicrobial susceptibility testing, PCR panels, 16S rRNA gene sequencing, and shotgun metagenomics.
  • Analysis of how these techniques contribute to pathogen identification and resistance gene detection.
  • Evaluation of the impact of diagnostic findings on therapeutic decisions and patient outcomes.

Main Results:

  • Culture remains essential for identifying viable pathogens and guiding antibiotic selection via susceptibility testing.
  • Molecular techniques detect a broader range of pathogens and resistance genes, revealing polymicrobial complexity.
  • Despite enhanced detection, molecular methods do not consistently clarify pathogen importance, differentiate colonization from infection, or improve healing outcomes or cost-effectiveness.

Conclusions:

  • Increased diagnostic sensitivity in DFIs has outpaced the development of frameworks for translating microbiological data into effective therapeutic actions.
  • Microbiology is crucial but insufficient alone; improved outcomes depend on integrating diagnostic findings with surgical, vascular, and multidisciplinary care.
  • Future improvements lie in better integration of data, not solely in detecting more organisms.