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      Relación entre los niveles de compuestos volátiles sulfurados con los niveles de RANKL y OPG en pacientes con periodontitis crónica moderada o severa: Estudio transversal Translated title: Relationship between the levels of volatile sulfur compounds with the levels of RANKL and OPG in patients with moderate or severe periodontitis: A cross sectional study

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          Abstract

          Antecedentes: El efecto de los Compuestos Volátiles Sulfurados (CVS) sobre los tejidos periodontales, específicamente a nivel del eje RANKL/OPG, no ha sido dilucidado y en la actualidad existe escasa literatura al respecto publicada. Objetivo: Evaluar si los CVS medidos en la cavidad oral de pacientes con periodontitis crónica moderada a severa se relacionan con la expresión de RANKL y OPG a nivel de fluido gingival crevicular (FGC). Método: Se realizó un estudio transversal con 71 pacientes derivados de la Unidad de Diagnóstico de la Clínica Odontológica Docente Asistencial de la Universidad de los Andes. Posterior a la realización de un examen periodontal completo se tomaron muestra de los niveles de CVS de la boca de los pacientes mediante un monitor de sulfuros y muestras de FGC para evaluar los niveles de RANKL y OPG mediante test de ELISA. Los datos obtenidos fueron analizados mediante test de correlación de Spearman. Resultados: Al evaluar la correlación de los niveles de CVS con los niveles de RANKL, OPG y la razón RANKL/OPG, se observó un R de 0.098 con un p value = 0.41; -0.084 con un p value= 0.48 y 0.067 con un p value = 0.57 respectivamente. Conclusiones: El presente estudio no pudo demostrar si existe una relación entre los niveles de CVS con la expresión de RANKL y OPG en el FGC de pacientes con periodontitis crónica.

          Translated abstract

          Background: The effect of the Volatile Sulfur Compounds (VSC) on the periodontal tissues, specifically at the RANKL/OPG level has not been elucidate and there is little literature published on this subject. Aim: To explore if the VSC levels measured in the oral cavity of patients with moderate or severe chronic periodontitis are correlated with the expression of RANKL and OPG at the gingival fluid level (GF). Method: A cross-sectional study was conducted with 71 patients referred by the Universidad de los Andes’s dentistry diagnosis department. After undergoing full-mouth periodontal exam, levels of CVS were recorded using a sulfur monitor and then GF was extracted to assess RANKL and OPG levels with ELISA. Data was analyzed with Spearman correlation test. Results: The correlation (R) between the VSC and the GF levels was 0.098 with a p value = 0.41; -0.084 with a p value = 0.48 y 0.067 with a p value = 0.57 respectively. Conclusions: This study could not demonstrate if there is a relation between the VSC levels and the expression of RANKL and OPG in the GF in patients with chronic periodontitis.

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          Most cited references34

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          Case Definitions for Use in Population-Based Surveillance of Periodontitis.

          Many definitions of periodontitis have been used in the literature for population-based studies, but there is no accepted standard. In early epidemiologic studies, the two major periodontal diseases, gingivitis and periodontitis, were combined and considered to be a continuum. National United States surveys were conducted in 1960 to 1962, 1971 to 1974, 1981, 1985 to 1986, 1988 to 1994, and 1999 to 2000. The case definitions and protocols used in the six national surveys reflect a continuing evolution and improvement over time. Generally, the clinical diagnosis of periodontitis is based on measures of probing depth (PD), clinical attachment level (CAL), the radiographic pattern and extent of alveolar bone loss, gingival inflammation measured as bleeding on probing, or a combination of these measures. Several other patient characteristics are considered, and several factors, such as age, can affect measurements of PD and CAL. Accuracy and reproducibility of measurements of PD and CAL are important because case definitions for periodontitis are based largely on either or both measurements, and relatively small changes in these values can result in large changes in disease prevalence. The classification currently accepted by the American Academy of Periodontology (AAP) was devised by the 1999 International Workshop for a Classification of Periodontal Diseases and Conditions. However, in 2003 the Centers for Disease Control and Prevention and the AAP appointed a working group to develop further standardized clinical case definitions for population-based studies of periodontitis. This classification defines severe periodontitis and moderate periodontitis in terms of PD and CAL to enhance case definitions and further demonstrates the importance of thresholds of PD and CAL and the number of affected sites when determining prevalence.
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            The formation of hydrogen sulfide and methyl mercaptan by oral bacteria.

            The capacity to form volatile sulfur compounds was tested in bacteria isolated from subgingival microbiotas and in a representative number of reference strains. A majority of the 75 tested oral bacterial species and 7 unnamed bacterial taxa formed significant amounts of hydrogen sulfide from L-cysteine. The most active bacteria were found in the genera Peptostreptococcus, Eubacterium, Selenomonas, Centipeda, Bacteroides and Fusobacterium. Methyl mercaptan from L-methionine was formed by some members of the genera Fusobacterium, Bacteroides, Porphyromonas and Eubacterium. When incubated in serum for 7 d, the most potent producers of hydrogen sulfide were Treponema denticola and the black-pigmented species, Bacteroides intermedius, Bacteroides loescheii, Porphyromonas endodontalis and Porphyromonas gingivalis. P. endodontalis and P. gingivalis also produced significant amounts of methyl mercaptan in serum. No other volatile sulfur compound was detected in serum or in the presence of L-cysteine and L-methionine. These findings significantly increase the list of oral bacteria known to produce volatile sulfur compounds.
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              Causation and pathogenesis of periodontal disease

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                Author and article information

                Journal
                piro
                Revista clínica de periodoncia, implantología y rehabilitación oral
                Rev. Clin. Periodoncia Implantol. Rehabil. Oral
                Sociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile. (Santiago, , Chile )
                0719-0107
                April 2013
                : 6
                : 1
                : 20-24
                Affiliations
                [02] orgnameUniversidad de los Andes orgdiv1Facultad de Odontología orgdiv2Centro de Biología y Regeneración Oral Chile
                [01] orgnameUniversidad de los Andes orgdiv1Facultad de Odontología orgdiv2Departamento de Periodoncia Chile
                [03] orgnameUniversidad de los Andes orgdiv1Facultad de Odontología orgdiv2Departamento de Ciencias, Investigación y Gestión Chile
                Article
                S0719-01072013000100004 S0719-0107(13)00600100004
                10.4067/S0719-01072013000100004
                c606b08b-4db9-45ff-9d85-28f7b6bb44d8

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 28 January 2013
                : 30 August 2012
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 33, Pages: 5
                Product

                SciELO Chile

                Self URI: Texto completo solamente en formato PDF (ES)
                Categories
                Trabajos de Investigación

                Halitosis,periodontitis,volatile sulfur compounds,RANKL and OPG,compuestos volátiles sulfurados,RANKL y OPG

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