Yago Leira1,2,3, Pablo Ameijeira2, Clara Domínguez4, Esteban López-Arias5, Paulo Ávila-Gómez5, María Pérez-Mato5, Tomás Sobrino5, Francisco Campos5, Francesco D'Aiuto1, Rogelio Leira4,5, Juan Blanco2,3. 1. Periodontology Unit, UCL Eastman Dental Institute and Hospital, University College London, London, UK. 2. Periodontology Unit, Faculty of Medicine and Odontology, University of Santiago de Compostela, Santiago de Compostela, Spain. 3. Medical-Surgical Dentistry (OMEQUI) Research Group, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain. 4. Department of Neurology, Headache Unit, University Clinical Hospital, University of Santiago de Compostela, Santiago de Compostela, Spain. 5. Clinical Neurosciences Research Laboratory, Department of Neurology, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain.
Abstract
BACKGROUND: Recently, a relationship was found between periodontitis and chronic migraine. Calcitonin gene-related peptide (CGRP) is a key element in migraine pathophysiology. However, no information exists of the potential association between periodontal inflammation and CGRP in chronic migraine. The aim of the study was, therefore, to investigate whether there is a link between periodontitis and peripheral levels of CGRP in a cohort of patients with chronic migraine. METHODS: We included 102 chronic migraineurs and 77 age- and sex-matched individuals free of headache/migraine. Full-mouth periodontal parameters were recorded and the periodontal inflamed surface area (PISA) was calculated to quantify the periodontal inflammatory status for each participant. Sociodemographic data and comorbidities were assessed by means of a standard questionnaire. We collected blood samples and serum concentrations were done for CGRP, interleukin (IL)-6 and IL-10. RESULTS: In the chronic migraine group, patients with periodontitis had greater levels of serum CGRP (19.7 ± 6.5 versus 15.3 ± 6.2 pg/mL, P < 0.0001) and IL-6 (15.1 ± 9.2 versus 9.6 ± 6.3 pg/mL, P < 0.0001) while non-significant differences were observed with IL-10 (2.0 ± 1.0 versus 2.8 ± 1.5 pg/mL, P = 0.675) concentrations than those without periodontitis. PISA was independently associated with CGRP in patients with chronic migraine (β = 0.003; 95% confidence interval: 0.001 to 0.006, P = 0.031). PISA correlated positively with CGRP (r = 0.236; P = 0.017) and IL-6 (r = 0.262; P = 0.008) in chronic migraine. CONCLUSIONS: Periodontal inflammation is associated with increased circulating levels of CGRP in chronic migraineurs. Elucidating the exact mechanisms through which periodontitis and CGRP are linked in these patients deserves further investigation.
BACKGROUND: Recently, a relationship was found between periodontitis and chronic migraine. Calcitonin gene-related peptide (CGRP) is a key element in migraine pathophysiology. However, no information exists of the potential association between periodontal inflammation and CGRP in chronic migraine. The aim of the study was, therefore, to investigate whether there is a link between periodontitis and peripheral levels of CGRP in a cohort of patients with chronic migraine. METHODS: We included 102 chronic migraineurs and 77 age- and sex-matched individuals free of headache/migraine. Full-mouth periodontal parameters were recorded and the periodontal inflamed surface area (PISA) was calculated to quantify the periodontal inflammatory status for each participant. Sociodemographic data and comorbidities were assessed by means of a standard questionnaire. We collected blood samples and serum concentrations were done for CGRP, interleukin (IL)-6 and IL-10. RESULTS: In the chronic migraine group, patients with periodontitis had greater levels of serum CGRP (19.7 ± 6.5 versus 15.3 ± 6.2 pg/mL, P < 0.0001) and IL-6 (15.1 ± 9.2 versus 9.6 ± 6.3 pg/mL, P < 0.0001) while non-significant differences were observed with IL-10 (2.0 ± 1.0 versus 2.8 ± 1.5 pg/mL, P = 0.675) concentrations than those without periodontitis. PISA was independently associated with CGRP in patients with chronic migraine (β = 0.003; 95% confidence interval: 0.001 to 0.006, P = 0.031). PISA correlated positively with CGRP (r = 0.236; P = 0.017) and IL-6 (r = 0.262; P = 0.008) in chronic migraine. CONCLUSIONS: Periodontal inflammation is associated with increased circulating levels of CGRP in chronic migraineurs. Elucidating the exact mechanisms through which periodontitis and CGRP are linked in these patients deserves further investigation.
Authors: Pablo Hervella; María Luz Alonso-Alonso; María Pérez-Mato; Manuel Rodríguez-Yáñez; Susana Arias-Rivas; Iria López-Dequidt; José M Pumar; Tomás Sobrino; Francisco Campos; José Castillo; Ramón Iglesias-Rey Journal: BMC Neurol Date: 2022-06-09 Impact factor: 2.903
Authors: Yago Leira; Clara Domínguez; Pablo Ameijeira; Esteban López-Arias; Paulo Ávila-Gómez; María Pérez-Mato; Tomás Sobrino; Francisco Campos; Juan Blanco; Rogelio Leira Journal: Sci Rep Date: 2021-01-13 Impact factor: 4.379