In Vivo מחסום הדם - מוח חדירות Assay בעכברים באמצעות Fluorescently עם התווית המשדרים

Overview

This study presents a method for assessing mouse brain vascular permeability using intraperitoneally injected fluorescent tracers. It aims to investigate blood-brain barrier dysfunction, relevant in conditions such as stroke and Alzheimer's disease, by providing quantitative and visual data on neurovascular permeability.

Key Study Components

Area of Science

• Neuroscience
• Vascular Biology
• Biomedical Research

Background

• Assessing blood-brain barrier dysfunction is critical for understanding various neurological disorders.
• The use of fluorescent tracers allows for both quantitative and qualitative analysis of permeability.
• This method can provide insights on recovery from vascular dysfunction after therapy.
• Implications extend towards the diagnosis and treatment of brain edema occurring in multiple diseases.

Purpose of Study

• To develop a reliable assay for measuring vascular permeability in mouse brain models.
• To evaluate therapeutic interventions aimed at restoring blood-brain barrier functionality.
• To facilitate deeper investigations into the underlying mechanisms of neurovascular permeability changes.

Methods Used

• This study employs an intraperitoneal injection method using fluorescent tracers.
• A mouse model is utilized to examine the integrity of the blood-brain barrier.
• Concurrent quantitative assessment of permeability is performed via fluorometry, alongside fluorescence microscopy for regional visualization.
• The complete procedure, from injection to analysis, takes approximately 5–6 hours for 10 mice.
• Detailed steps include anesthesia, cardiac perfusion, tissue harvesting, and subsequent fluorescence measurements.

Main Results

• The method allows for effective quantification of blood-brain barrier permeability.
• Fluorescent microscopy provides visual confirmation of tracer localization and permeability assessments.
• The procedure has shown potential applicability in studying recovery processes following various neurological injuries.

Conclusions

• This study demonstrates a specific, efficient assay for examining vascular permeability in mouse models.
• It enables researchers to further explore therapeutic impacts on blood-brain barrier integrity.
• The method contributes to understanding the mechanisms of vascular dysfunction in neurological disorders.

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