ArticleLaryngoscope investigative otolaryngology2025
Neuromuscular junction visualization in paraffin-embedded thyroarytenoid muscle sections: Expanding options beyond frozen section analysis.
Article in Laryngoscope investigative otolaryngology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Spatiotemporal Remodeling of Presynaptic Terminals in Human Neuromuscular Junctions.International journal of molecular sciences · 2026Article
- Neuromuscular junction visualization in paraffin-embedded thyroarytenoid muscle sections: Expanding options beyond frozen section analysis.Laryngoscope investigative otolaryngology · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
Objectives: The current gold standard for immunofluorescent (IF) visualization of neuromuscular junctions (NMJs) in muscle utilizes frozen tissue sections with fluorescent conjugated antibodies to demarcate neurons and IF alpha-bungarotoxin (α-BTX) to demarcate motor endplates. Frozen tissue sectioning comes with inherent inescapable limitations, including cryosectioning artifact and limited sample shelf-life. However, a parallel approach to identify NMJs in paraffin-embedded tissue sections has not been previously described. Methods: Yucatan minipig thyroarytenoid (TA) muscle was harvested and prepared as 5-μm thick paraffin-embedded tissue sections. A variety of antibodies at various concentrations were selected to target nicotinic acetylcholine receptors, synaptic vesicles, and neurons. Results: Neurofilament (NEFL, Invitrogen, 1:500) and synaptic vesicle glycoprotein (SV2, DSHB, 1:230) bound and demarcated the neurons and synaptic vesicles, respectively. Following consistent visualization of nerve tissue, rabbit anti-nicotinic acetylcholine receptor alpha-1 subunit (CHRNα Conclusions: Herein, we describe a new methodology to visualize NMJs within paraffin-embedded TA muscle sections. Our protocol avoids the known limitations associated with cryosectioned samples and introduces a new neurolaryngologic research tool that utilizes the advantageous ability of paraffin-embedded sectioning to preserve tissue morphology. In conjunction with standard cryosectioned methods, the described paraffin-embedded protocol serves to enhance histological analysis of NMJs. Level of evidence: NA.
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