The correlation between calcium intensity and histopathological changes in brachial plexus nerve injuries

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BACKGROUND: After nerve injury, an influx of calcium exceeds the homeostatic capacity, which damages peripheral nerves. Previous studies identified that following nerve crush, function improves as calcium levels normalize.

METHODS: Electrophysiological analysis was performed to measure the compound muscle action potential of 15 patients' damaged nerves. These samples were evaluated for calcium level and also stained with a Luxol fast blue and neurofilament antibodies to evaluate the myelin sheath and neurofilaments of the nerves. Based on the Sunderland scale, we identified three exclusive types of peripheral nerve injury groups.

RESULTS: There was a correlation between histopathological damage and calcium levels of 0.81 (p < 0.005). The average relative fluorescence units (RFUs) was 235.28 ± 19, which corresponds to 5.3 × 10⁻⁷ M of calcium, five times the normal value.

CONCLUSION: Our study shows promising clinical implications via faster pathology results by the RFU technique. This approach of calcium staining, though still in clinical trials, offers significant clinical application, allowing physicians to get the clinically diagnostic nerve injury degree faster and will also facilitate better strategies for further treatment or future surgeries.

Medienart:

E-Artikel

Erscheinungsjahr:

2013

Erschienen:

2013

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Journal of reconstructive microsurgery - 29(2013), 7 vom: 01. Sept., Seite 465-71

Sprache:

Englisch

Beteiligte Personen:

Davis, John [VerfasserIn]
O'Connor, Elizabeth [VerfasserIn]
Zhang, Lin-Ling [VerfasserIn]
Agresti, Michael [VerfasserIn]
Matloub, Hani S [VerfasserIn]
Sanger, James [VerfasserIn]
Jaradeh, Safwan S [VerfasserIn]
Yan, Ji-Geng [VerfasserIn]

Links:

Volltext

Themen:

1328-51-4
Calcium
Coloring Agents
Indoles
Journal Article
Luxol Fast Blue MBS
SY7Q814VUP

Anmerkungen:

Date Completed 28.07.2014

Date Revised 26.05.2016

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1055/s-0033-1345436

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM22737424X