What is the clinical evidence from this study?

Study design: Other. Population: Rabbit skeletal muscles. Intervention: Potassium iodide (KI) extraction. Primary outcome: Cytoskeletal structure of sarcomeres.

What question did this study set out to answer?

To explore the structural role of intermediate filaments in adult vertebrate skeletal muscle sarcomeres.

February 1, 1983The Journal of Cell BiologyOpen Access

A network of transverse and longitudinal intermediate filaments is associated with sarcomeres of adult vertebrate skeletal muscle.

View Full Paper

Ask AI

Bookmark

Key result

Extraction of rabbit skeletal muscle myofibrils with KI revealed an extensive network of transverse and longitudinal intermediate filaments connecting adjacent myofibrils and encircling Z disks.

Population

Triton-EGTA-treated rabbit skeletal muscles

Design

Preclinical

Authors

KWK WangThe University of Texas at Austin RRR Ramirez-MitchellThe University of Texas at Austin

Discussion

Member takes

Implication

Cytoskeletal bridges may stabilize myofibril alignment; leaves open their role in cardiac sarcomere integrity.

Key Points

To explore the structural role of intermediate filaments in adult vertebrate skeletal muscle sarcomeres.
Utilized Triton-EGTA treatment on rabbit skeletal muscle to isolate myofibrils.
Analyzed cytoskeletal residues using transmission and scanning electron microscopy.
Conducted SDS PAGE to determine protein composition of filamentous residues.
Identified a network of transverse and longitudinal intermediate filaments surrounding Z disks and connecting myofibrils.
Observed that the residues during extraction mainly consisted of titin and nebulin, with desmin being present in minor quantities.
Suggested that the intermediate filament network plays crucial roles in muscle structure and function.

Structured PICO

Population

Triton-EGTA-treated rabbit skeletal muscles

Intervention

Extraction with KI to remove the majority of thin and thick filaments

Outcome

Morphological and biochemical characterization of salt-resistant cytoskeletal residuessurrogate

Intermediate filaments form an integral sarcomeric network that may play important cytoskeletal roles in muscle structure and mechanics.

Cite This Study

Wang et al. (1983) studied Rabbit skeletal muscles. Potassium iodide (KI) extraction was evaluated on Cytoskeletal structure of sarcomeres. Extraction of rabbit skeletal muscle myofibrils with KI revealed an extensive network of transverse and longitudinal intermediate filaments connecting adjacent myofibrils and encircling Z disks.

synapsesocial.com/papers/6a6284e75d85cff801c985f3 https://doi.org/10.1083/jcb.96.2.562

View Full Paper

Ask AI

Bookmark

A network of transverse and longitudinal intermediate filaments is associated with sarcomeres of adult vertebrate skeletal muscle.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

A network of transverse and longitudinal intermediate filaments is associated with sarcomeres of adult vertebrate skeletal muscle.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider