Vesicular glutamate transporter-immunopositive axons that coexpress neuropeptides in the rat and human dental pulp
© 2020 International Endodontic Journal. Published by John Wiley & Sons Ltd..
AIM: To examine the type of vesicular glutamate transporter (VGLUT)-immunopositive (+) axons that coexpress neuropeptides in the rat and human dental pulp, which may help understand peripheral mechanism of pulpal inflammatory pain in rats and humans.
METHODOLOGY: The trigeminal ganglia (TG) and the dental pulp of the maxillary molar teeth from three male Sprague-Dawley rats weighing 300-330 g and dental pulps of three healthy human (male) maxillary premolar teeth from three 16 to 28-year-old patients extracted for orthodontic treatment were used. The type of VGLUT + axons that coexpress substance P (SP)- and/or calcitonin gene-related peptide (CGRP) and parvalbumin in the rat TG and in the axons of the rat and the human dental pulp was examined by double fluorescence immunohistochemistry and quantitative analysis. Results were analyzed using one-way anova and the Kruskal-Wallis test.
RESULTS: SP and CGRP were expressed in many human VGLUT1 + pulpal axons but not in the rat VGLUT1 + TG neurons and pulpal axons (P < 0.05). SP and CGRP were expressed in a considerable number of human VGLUT2 + pulpal axons and also in many rat TG neurons and pulpal axons. The fraction of VGLUT1 + axons expressing parvalbumin was about three times higher in the rat than in the human dental pulp (P < 0.05).
CONCLUSIONS: These findings suggest that the types of VGLUT + axons, which release neuropeptides, may be different between the rat and the human dental pulp, raising a possibility that peripheral mechanism of pulpal inflammatory pain may be different between rats and humans.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:54 |
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| Enthalten in: |
International endodontic journal - 54(2021), 3 vom: 08. März, Seite 377-387 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cho, Y S [VerfasserIn] |
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| Links: |
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| Themen: |
Dental pulp |
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| Anmerkungen: |
Date Completed 15.02.2021 Date Revised 15.02.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/iej.13427 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM316594059 |
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| 500 | |a Date Revised 15.02.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2020 International Endodontic Journal. Published by John Wiley & Sons Ltd. | ||
| 520 | |a AIM: To examine the type of vesicular glutamate transporter (VGLUT)-immunopositive (+) axons that coexpress neuropeptides in the rat and human dental pulp, which may help understand peripheral mechanism of pulpal inflammatory pain in rats and humans | ||
| 520 | |a METHODOLOGY: The trigeminal ganglia (TG) and the dental pulp of the maxillary molar teeth from three male Sprague-Dawley rats weighing 300-330 g and dental pulps of three healthy human (male) maxillary premolar teeth from three 16 to 28-year-old patients extracted for orthodontic treatment were used. The type of VGLUT + axons that coexpress substance P (SP)- and/or calcitonin gene-related peptide (CGRP) and parvalbumin in the rat TG and in the axons of the rat and the human dental pulp was examined by double fluorescence immunohistochemistry and quantitative analysis. Results were analyzed using one-way anova and the Kruskal-Wallis test | ||
| 520 | |a RESULTS: SP and CGRP were expressed in many human VGLUT1 + pulpal axons but not in the rat VGLUT1 + TG neurons and pulpal axons (P < 0.05). SP and CGRP were expressed in a considerable number of human VGLUT2 + pulpal axons and also in many rat TG neurons and pulpal axons. The fraction of VGLUT1 + axons expressing parvalbumin was about three times higher in the rat than in the human dental pulp (P < 0.05) | ||
| 520 | |a CONCLUSIONS: These findings suggest that the types of VGLUT + axons, which release neuropeptides, may be different between the rat and the human dental pulp, raising a possibility that peripheral mechanism of pulpal inflammatory pain may be different between rats and humans | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 7 | |a Vesicular Glutamate Transport Proteins |2 NLM | |
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| 700 | 1 | |a Moozhayil, S J |e verfasserin |4 aut | |
| 700 | 1 | |a Choi, S Y |e verfasserin |4 aut | |
| 700 | 1 | |a Bae, Y C |e verfasserin |4 aut | |
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