» Articles » PMID: 37340216

Photobiomodulation and Vitamin B Treatment Alleviate Both Thermal and Mechanical Orofacial Pain in Rats

Overview
Publisher Springer
Specialties Biology
Chemistry
Date 2023 Jun 20
PMID 37340216
Authors
Affiliations
Soon will be listed here.
Abstract

Purpose: The present study investigates the efficacy of Photobiomodulation (PBM) and Vitamin B Complex (VBC) to relieve pain, both in separately and combined (PBM and VBC).

Methods: Rats with chronic constriction injury of the right infraorbital nerve (CCI-IoN) or Sham surgery were used. PBM was administered at a wavelength of 904 nm and energy density of 6.23 J/cm and VBC (containing B1, B6 and B12) subcutaneously, both separately and combined. Behavioral tests were performed to assess mechanical and thermal hypersensitivity before and after CCI and after PBM, VBC, or PBM + VBC. The expression of inflammatory proteins in the trigeminal ganglion and the immunohistochemical alterations of Periaqueductal Gray (PAG) astrocytes and microglia were examined following CCI and treatments.

Results: All testeds treatments reversed the painful behavior. The decrease in pain was accompanied by a decrease of Glial Fibrillary Acidic Protein (GFAP), a specific astrocytic marker, and Ionized calcium-binding adaptor molecule 1 (Iba-1), a marker of microglia, and decreased expression of Transient Receptor Potential Vanilloid 1 (TRPV1), Substance P, and Calcitonin Gene-Related Peptide (CGRP) induced by CCI-IoN in PAG and Trigeminal ganglion. Furthermore, both treatments showed a higher expression of Cannabinoid-type 1 (CB1) receptor in the trigeminal ganglion compared to CCI-IoN rats. Our results show that no difference was observed between groups.

Conclusion: We showed that PBM or VBC regulates neuroinflammation and reduces inflammatory protein expression. However, the combination of PBM and VBC did not enhance the effectiveness of both therapies alone.

Citing Articles

The Role of Photobiomodulation to Modulate Ion Channels in the Nervous System: A Systematic Review.

Zhang Z, Zhang Z, Liu P, Xue X, Zhang C, Peng L Cell Mol Neurobiol. 2024; 44(1):79.

PMID: 39579175 PMC: 11585518. DOI: 10.1007/s10571-024-01513-1.


Nutritional Strategies for Chronic Craniofacial Pain and Temporomandibular Disorders: Current Clinical and Preclinical Insights.

Piriyaprasath K, Kakihara Y, Hasegawa M, Iwamoto Y, Hasegawa Y, Fujii N Nutrients. 2024; 16(17).

PMID: 39275184 PMC: 11397166. DOI: 10.3390/nu16172868.


Role of microglia in diabetic neuropathic pain.

Wang Q, Xie Y, Ma S, Luo H, Qiu Y Front Cell Dev Biol. 2024; 12:1421191.

PMID: 39135776 PMC: 11317412. DOI: 10.3389/fcell.2024.1421191.

References
1.
Talbot K, Madden V, Jones S, Moseley G . The sensory and affective components of pain: are they differentially modifiable dimensions or inseparable aspects of a unitary experience? A systematic review. Br J Anaesth. 2019; 123(2):e263-e272. PMC: 6676053. DOI: 10.1016/j.bja.2019.03.033. View

2.
Maarbjerg S, Stefano G, Bendtsen L, Cruccu G . Trigeminal neuralgia - diagnosis and treatment. Cephalalgia. 2017; 37(7):648-657. DOI: 10.1177/0333102416687280. View

3.
Merrill R . Central mechanisms of orofacial pain. Dent Clin North Am. 2006; 51(1):45-59, v. DOI: 10.1016/j.cden.2006.09.010. View

4.
Coelho S, Bastos-Pereira A, Fraga D, Chichorro J, Zampronio A . Etanercept reduces thermal and mechanical orofacial hyperalgesia following inflammation and neuropathic injury. Eur J Pain. 2014; 18(7):957-67. DOI: 10.1002/j.1532-2149.2013.00441.x. View

5.
Urano H, Ara T, Fujinami Y, Hiraoka B . Aberrant TRPV1 expression in heat hyperalgesia associated with trigeminal neuropathic pain. Int J Med Sci. 2012; 9(8):690-7. PMC: 3477677. DOI: 10.7150/ijms.4706. View