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Using Genetics in Periodontal Disease to Justify Implant Failure in Down Syndrome Patients.

ABSTRACT: Peri-implant bone loss leading to dental implant failure does not develop in the same way across subjects who apparently present the same condition-specifically, in the case of Down syndrome patients with the same genetic disorder-given that they do not necessarily develop immune-inflammatory disorders to the same extent. METHODS:This retrospective case-control study was aimed at identifying the possible genes involved in implant failure in Down syndrome patients by matching the periodontal disease variable by means of a retrospective case-control study. This process involved using the functional analysis of gene expression software Transcriptome Analysis Console (TAC, Affymetrix, Thermo Fisher Scientific, Waltham, MA, USA) and a search for the possible candidate genes involved. Focus was placed on the 92 genes related to the inflammation identified from the TaqMan™ Array Plate Human Inflammation Kit (Thermo Fisher Scientific, Waltham, MA, USA). RESULTS:Six genes showed statistically significant results (p < 0.05) in our comparison. Three of them-PLCG2 (p = 0.0333), ALOX5 (p = 0.03) and LTAH4 (p = 0.0081)-were overexpressed in the implant reject group, and the following three were down-regulated: VCAM1 (p = 0.0182), PLA2G2A (p = 0.0034) and PLA2G10 (p = 0.047). CONCLUSION:Statistically significant differences exist in the gene expression involved in osteoclastogenesis, inflammatory response and host defensive response.

SUBMITTER: Baus-Dominguez M

PROVIDER: S-EPMC7464703 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Using Genetics in Periodontal Disease to Justify Implant Failure in Down Syndrome Patients.

Baus-Domínguez Maria M Gómez-Díaz Raquel R Corcuera-Flores Jose-Ramón JR Torres-Lagares Daniel D Ruiz-Villandiego José-Cruz JC Machuca-Portillo Guillermo G Gutiérrez-Pérez José-Luis JL Serrera-Figallo María-Angeles MA

Journal of clinical medicine 20200805 8

Peri-implant bone loss leading to dental implant failure does not develop in the same way across subjects who apparently present the same condition-specifically, in the case of Down syndrome patients with the same genetic disorder-given that they do not necessarily develop immune-inflammatory disorders to the same extent.<h4>Methods</h4>This retrospective case-control study was aimed at identifying the possible genes involved in implant failure in Down syndrome patients by matching the periodont ...[more]

PMID: 32764374

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Project description:The aim of this systematic literature review was to evaluate which type of periodontal preventive and therapeutic approaches presents superior outcomes in patients with Down syndrome (DS). Studies reporting different methods of periodontal care from DS patients were considered eligible. Included clinical studies should indicate at least two periodontal parameters in different periods of assessment. Screening of the articles, data extraction and quality assessment were conducted independently and in duplicate. Electronic search according to the PICO search, with both Key-words and MESH terms were conducted in MEDLINE, EMBASE and CENTRAL databases until March 2016. Manual search was conducted in four journals, namely Journal of Periodontology, Journal of Clinical Periodontology, Journal of Periodontal Research and Special Care in Dentistry and their electronic databases were searched. Electronic and manual search resulted in 763 papers, and of them 744 were excluded after title/abstract assessment. The full text of 19 potentially eligible publications was screened and 9 studies met inclusion criteria. The results demonstrated the importance to introduce youngest DS patients in preventive programs, as well as participation of parents, caregivers or institutional attendants in supervising/performing oral hygiene. In studies with higher frequency of attendance, all age groups presented superior preventive and therapeutic results, irrespective of the therapeutic approach used (surgical/nonsurgical/periodontal care program). The important factors for reducing periodontal parameters were the frequency of the appointments and association with chlorhexidine/plaque disclosing agents as adjuvant treatment. This systematic review demonstrated that early introduction in periodontal care, participation of parents/caregivers/institutional attendants, frequency of attendance and association with chemical adjuvants (independently of the periodontal treatment adopted) seems to improve periodontal outcomes in preventive and periodontal treatment of DS patients. Registration number (Prospero): CRD42016038433.

Project description:Metabolic syndrome, a cluster of 3 or more risk factors for cardiovascular disease, is associated with periodontal disease, but few studies have been prospective in design. This study's aim was to determine whether metabolic syndrome predicts tooth loss and worsening of periodontal disease in a cohort of 760 men in the Department of Veterans Affairs Dental Longitudinal Study and Normative Aging Study who were followed up to 33 y from 1981 to 2013. Systolic and diastolic blood pressures were measured with a standard mercury sphygmomanometer. Waist circumference was measured in units of 0.1 cm following a normal expiration. Fasting blood samples were measured in duplicate for glucose, triglyceride, and high-density lipoprotein. Calibrated periodontists served as dental examiners. Periodontal outcome events on each tooth were defined as progression to predefined threshold levels of probing pocket depth (?5 mm), clinical attachment loss (?5 mm), mobility (?0.5 mm), and alveolar bone loss (?40% of the distance from the cementoenamel junction to the root apex, on radiographs). Hazards ratios (95% confidence intervals) of tooth loss or a periodontitis event were estimated from tooth-level extended Cox proportional hazards regression models that accounted for clustering of teeth within individuals and used time-dependent status of metabolic syndrome. Covariates included age, education, smoking status, plaque level, and initial level of the appropriate periodontal disease measure. Metabolic syndrome as defined by the International Diabetes Federation increased the hazards of tooth loss (1.39; 1.08 to 1.79), pocket depth ?5 mm (1.37; 1.14 to 1.65), clinical attachment loss ?5 mm (1.19; 1.00 to 1.41), alveolar bone loss ?40% (1.25; 1.00 to 1.56), and tooth mobility ?0.5 mm (1.43; 1.07 to 1.89). The number of positive metabolic syndrome conditions was also associated with each of these outcomes. These findings suggest that the metabolic disturbances that comprise the metabolic syndrome may play a role in the development or worsening of periodontitis.

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Using Genetics in Periodontal Disease to Justify Implant Failure in Down Syndrome Patients.

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Using Genetics in Periodontal Disease to Justify Implant Failure in Down Syndrome Patients.

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