Dataset Information

Effect of low levels of fluoride in the islets of NOD mice: integrative morphological, immunohistochemical and proteomic analyses

ABSTRACT: Fluoride (F) is used in dentistry, in therapeutic doses, to prevent dental caries. Recently, animal studies have suggested that in low doses, F might reduce glucose and be beneficial in the prophylaxis of diabetes, but the involved mechanisms are still unknown. The present study evaluated changes in the pancreatic islets of NOD mice exposed to low dose of F, using morphological, immunohistochemical and proteomic tools.

INSTRUMENT(S): Xevo G2 Tof, nanoACQUITY UPLC

ORGANISM(S): Mus Musculus (mouse)

TISSUE(S): Pancreatic Islet

SUBMITTER: Juliana Trevizol

LAB HEAD: Juliana Trevizol

PROVIDER: PXD031865 | Pride | 2023-07-20

REPOSITORIES: Pride

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Metabolic effect of low fluoride levels in the islets of NOD mice: integrative morphological, immunohistochemical, and proteomic analyses.

Trevizol Juliana Sanches JS Dionizio Aline A Delgado Aislan Quintiliano AQ Ventura Talita Mendes Oliveira TMO Ribeiro Caroline Fernanda da Silva CFDS Ribeiro Laura L Buzalaf Nathalia Rabelo NR Cestari Tânia Mary TM Magalhães Ana Carolina AC Suzuki Maiko M Bosqueiro José Roberto JR Buzalaf Marília Afonso Rabelo MAR

Journal of applied oral science : revista FOB 20230605

<h4>Objectives</h4>Fluoride (F) has been widely used to control dental caries, and studies suggest beneficial effects against diabetes when a low dose of F is added to the drinking water (10 mgF/L). This study evaluated metabolic changes in pancreatic islets of NOD mice exposed to low doses of F and the main pathways altered by the treatment.<h4>Methodology</h4>In total, 42 female NOD mice were randomly divided into two groups, considering the concentration of F administered in the drinking wate ...[more]

PMID: 37283331

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Project description:<p>Dental caries (also known as tooth decay) remains the most common chronic disease of childhood, five times more common than asthma and seven times more common than environmental allergies, with more than 40% of children exhibiting caries when they enter kindergarten. In 2005, it was estimated that dental health care costs were approximately $84 billion, of which 60% or about $50 billion were related to treatment of dental caries. Although overall caries prevalence has declined over the last 40 years, dental caries in the primary dentition and mean caries rates in children ages 2-11 has increased markedly over the past 12 years. Childhood caries is a serious public health issue because of associated health problems and because disparities in oral health have led to substantially higher average disease prevalence among children in poverty and in under-served racial and ethnic groups. These issues are of such concern that in 2005, the American Academy of Pediatrics made children's oral health one of their top areas of focus, as it is for the majority of the NIDCR "Disparities Centers".</p> <p>The etiology of dental caries has been studied for many years. Multiple factors contribute to a person's risk for caries, including: 1) environmental factors such as diet, oral hygiene, fluoride exposure and the level of colonization of cariogenic bacteria and 2) host factors such as salivary flow, salivary buffering capacity, position of teeth relative to each other, surface characteristics of tooth enamel and depth of occlusal fissures on posterior teeth. In spite of all that is known about this disease, there are still individuals who appear to be more susceptible to caries and those who are extremely resistant, regardless of the environmental risk factors to which they are exposed, implying that genetic factors also play an important role in caries etiology. This conclusion is supported by studies in both humans and animals, with the most compelling evidence coming from studies of twins reared apart in which investigators found significant resemblance within monozygotic (MZ) but not dizygotic (DZ) twin pairs for percentage of teeth and surfaces restored or carious and estimated the genetic contribution to caries as 40%. Other recent studies of twins reared together estimated the heritability for caries, adjusted for age and gender, as ranging from 45-64%.</p> <p>Despite the strong evidence of a genetic component to risk for dental caries, there have been only a few studies of candidate genes in caries, and no published genome-wide scans. A comprehensive genome wide search is the only approach that will allow us to identify those genetic regions likely to harbor genes increasing the risk for dental caries, and eventually to identify the etiologic genes and to explore the interaction of those genes with microbiological, dietary, fluoride, and behavioral factors that are known to be associated with caries risk and progression. <b>Therefore, the goal of this study is to perform genome-wide association (GWA) studies of dental caries with a large panel of SNP's (610,000) in families and individuals ascertained through multiple US sites (University of Pittsburgh and University of Iowa)</b>.</p> <p>The v2 release of this study includes 96 additional individuals who were genotyped with the CCDG: Dental Caries and CL/P in Guatemala project (dbGaP accession number <a href="./study.cgi?study_id=phs000440">phs000440</a>) to augment the data initially presented here. These subjects were genotyped on the Illumina 610 platform to make their data comparable.</p> <p>This study is part of the Gene Environment Association Studies initiative (GENEVA, <a href="http://www.genevastudy.org" target="_blank">http://www.genevastudy.org</a>), which was developed through the trans-NIH Genes, Environment, and Health Initiative (GEI). The overarching goal is to identify novel genetic factors that contribute to dental caries through large-scale genome-wide association studies of well-characterized families and individuals at multiple sites in the U.S. Genotyping was performed at the Johns Hopkins University Center for Inherited Disease Research (CIDR). The study was supported by the National Institute of Dental and Craniofacial Research (NIDCR, U01-DE018903). Data cleaning and harmonization were done at the GEI-funded GENEVA Coordinating Center at the University of Washington.</p>

Dataset Information

Effect of low levels of fluoride in the islets of NOD mice: integrative morphological, immunohistochemical and proteomic analyses

Publications

Metabolic effect of low fluoride levels in the islets of NOD mice: integrative morphological, immunohistochemical, and proteomic analyses.

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