Canna~Fangled Abstracts

The role of the endocannabinoid system in tooth eruption: An ex vivo study

By October 13, 2022No Comments

. 2022 Oct 13.

doi: 10.1111/aej.12695.

Online ahead of print.
Ana Clara Casadoumecq 1, José Javier Fernández-Solari 1 2, Juan Carlos Elverdin 1, Pablo Alejandro Rodríguez 3, Claudia Ester Mohn 1 2
Affiliations 

Abstract

The aim was to characterise the endocannabinoid system (ECS) in the dental pulp of teeth at different stages of eruption. Pulp of: erupted premolars (EPM), third molars in pre-eruptive (PThM), intraosseous (IThM) and eruptive stages (EThM) (n = 12 each group) were used. Messenger RNA expression of components of the ECS as cannabinoid receptors (CBr1 and CBr2), and anandamide synthetizing (NAPE-PLD) and degradation (FAAH) enzymes were measured by RT-PCR. Data were analysed using Student’s t-test for comparisons between two groups and one-way analysis of variance and Tukey’s post-test for multiple comparisons (statistical significance: p < 0.05). mRNA expression of CBr2, NAPE-PLD and FAAH was similar in the studied stages, was lower in IThM than in PThM and EThM, and the lowest in EThM (p < 0.01); of note, CBr2 mRNA expression was not detected in EThM. CBr1 mRNA did not differ significantly between IThM and PThM but was lower in EThM (p < 0.01). The absence of CBr2 and presence of CBr1 in EThM suggest the involvement of the ECS via CBr1 as a mediator of tooth and bone tissue homeostasis during tooth eruption.

Keywords: bone remodelling, bone resorption, dental pulp, endocannabinoid system, tooth eruption

References

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