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Tissue Triage and Freezing for Models of Skeletal Muscle Disease

作者： Hui Meng1, Paul M.L. Janssen2, Robert W. Grange3, Lin Yang4, Alan H. Beggs5, Lindsay C. Swanson5, Stacy A. Cossette1,6, Alison Frase7, Martin K. Childers8, Henk Granzier9, Emanuela Gussoni5, Michael W. Lawlor1 1Division of Pediatric Pathology, Department of Pathology and Laboratory Medicine,Medical College of Wisconsin, 2Department of Physiology and Cell Biology,The Ohio State University, 3Department of Human Nutrition, Foods and Exercise,Virginia Tech, 4Division of Biomedical Informatics, Department of Biostatistics, Department of Computer Science,University of Kentucky, 5Division of Genetics and Genomics, The Manton Center for Orphan Disease Research,Boston Children's Hospital, Harvard Medical School, 6Cure Congenital Muscular Dystrophy, 7Joshua Frase Foundation, 8Department of Rehabilitation Medicine,University of Washington, 9Department of Physiology,University of Arizona
简介：

Overview

This protocol outlines methods for preparing skeletal muscle tissue for various phenotyping studies. Proper preparation is crucial for evaluating structural, functional, and biochemical properties.

Key Study Components

Area of Science

  • Neuroscience
  • Biology
  • Histology

Background

  • Freezing skeletal muscle is essential for optimal microscopic morphology.
  • Minor differences in freezing protocols can lead to significant artifacts.
  • Histological evaluation is used to assess the quality of preservation.
  • Proper handling and preparation are critical to avoid freezing artifacts.

Purpose of Study

  • To provide a reliable method for freezing skeletal muscle specimens.
  • To ensure preservation of tissue morphology for pathological studies.
  • To minimize artifacts that can affect microscopic evaluation.

Methods Used

  • Subdivide skeletal muscle into fragments for desired studies.
  • Mount tissue to preserve orientation and protect from moisture.
  • Freeze specimens in isopentane bath and store appropriately.
  • Evaluate preservation quality through histological methods.

Main Results

  • Properly frozen muscle shows optimal morphology and preservation.
  • Artifacts can arise from excessive moisture or improper freezing.
  • Histological results are significantly improved with correct techniques.
  • Thawed and refrozen tissue can redistribute water for better morphology.

Conclusions

  • Adhering to the protocol ensures high-quality skeletal muscle specimens.
  • Understanding freezing techniques is vital for accurate histological analysis.
  • Proper preparation minimizes artifacts and enhances research outcomes.

Frequently Asked Questions

What is the main goal of this protocol?
The main goal is to freeze skeletal muscle for optimal microscopic morphology.
Why is proper preparation important?
Proper preparation prevents artifacts that can affect microscopic evaluation.
How can freezing artifacts be avoided?
By treating all muscle samples similarly and ensuring proper drying and freezing techniques.
What methods are used to evaluate preservation quality?
Histological evaluation is used to assess the quality of the frozen muscle tissue.
Can improperly frozen tissue be salvaged?
Yes, improperly frozen tissue can be thawed and refrozen under controlled conditions.
Who demonstrates this procedure?
Dr. Hui Meg and Ms. Jennifer Tinklenberg demonstrate the procedure.

The analysis of skeletal muscle tissues to determine structural, functional, and biochemical properties is greatly facilitated by appropriate preparation. This protocol describes appropriate methods to prepare skeletal muscle tissue for a broad range of phenotyping studies.

标签: Skeletal Muscle,    Muscle Disease,    Congenital Muscle Disorder,    Histological Examination,    Isopentane,    Liquid Nitrogen,    Single Fiber Functional Studies,    Myoblast Cell Culture,    Phenotypic Studies,    Standard Operating Procedures,   
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