Person:
Montero Solís, Eduardo

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First Name
Eduardo
Last Name
Montero Solís
URI
https://hdl.handle.net/20.500.14352/79864
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Odontología
Department
Especialidades Clínicas Odontológicas
Area
Estomatología
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    Periodontal diseases and depression: A pre‐clinical in vivo study
    (Journal of Clinical Periodontology, 2021) Martínez, María; Martín‐Hernández, David; Virto Ruiz, Leire; Mac-Dowell Mata, Karina Soledad; Leza Cerro, Juan Carlos; García Bueno, Borja; Figuero Ruiz, Elena; Ambrosio Elejalde, Nagore; Herrera González, David; Montero Solís, Eduardo; González Bris, Álvaro; Marín Cuenda, María José; Sanz Martín, Mariano
    Aim: To analyse, through a pre-clinical in vivo model, the possible mechanisms linking depression and periodontitis at behavioural, microbiological and molecular levels. Materials and methods: Periodontitis (P) was induced in Wistar:Han rats (oral gavages with Porphyromonas gingivalis and Fusobacterium nucleatum) during 12 weeks, followed by a 3-week period of Chronic Mild Stress (CMS) induction. Four groups (n = 12 rats/group) were obtained: periodontitis and CMS (P+CMS+); periodontitis without CMS; CMS without periodontitis; and control. Periodontal clinical variables, alveolar bone levels (ABL), depressive-like behaviour, microbial counts and expression of inflammatory mediators in plasma and brain frontal cortex (FC), were measured. ANOVA tests were applied. Results: The highest values for ABL occurred in the P+CMS+ group, which also presented the highest expression of pro-inflammatory mediators (TNF-α, IL-1β and NF-kB) in frontal cortex, related to the lipoprotein APOA1-mediated transport of bacterial lipopolysaccharide to the brain and the detection of F. nucleatum in the brain parenchyma. A dysregulation of the hypothalamic-pituitary-adrenal stress axis, reflected by the increase in plasma corticosterone and glucocorticoid receptor levels in FC, was also found in this group. Conclusions: Neuroinflammation induced by F. nucleatum (through a leaky mouth) might act as the linking mechanism between periodontal diseases and depression.