Artículos de revistas
Decreased Tnf-α Gene Expression In Periodontal Ligature In Msg-obese Rats: A Possible Protective Effect Of Hypothalamic Obesity Against Periodontal Disease?
Registro en:
Archives Of Oral Biology. , v. 57, n. 3, p. 300 - 306, 2012.
39969
10.1016/j.archoralbio.2011.08.024
2-s2.0-84857633621
Autor
Brandelero Jr. S.
Bonfleur M.L.
Ribeiro R.A.
Vanzela E.C.
Nassar C.A.
Nassar P.O.
Balbo S.L.
Institución
Resumen
The prevalence of obesity is increasing globally. There is evidence that the uncontrolled energetic metabolism in obese patients can accelerate periodontal disease. Therefore, the aim of this study was evaluate the possible relationship between hypothalamic obesity induced by neonatal treatment with MSG and experimental periodontal disease. Newborn male Wistar rats received subcutaneous injections in the cervical region, of 4g/Kg/day of body weight (BW) of MSG (MSG group) or hypertonic saline solution, 1.25/kg/day BW (control group, CTL). At 70 days of life periodontal disease was induced in these animals. After they were sacrificed, radiographic analyses of alveolar bone resorption and Tumor Necrosis Factor α (TNFα) gene expression in gingival tissue were performed. The neonatal treatment with MSG did not affect the concentration of plasma glucose and cholesterol (CHOL). However, plasma insulin, non-esterified fatty acids (NEFA) and triglycerides (TG) leves were higher in MSG compared with CTL group. The alveolar bone resorption was 44% lower in MSG-obese rats compared with CTL rats. In the presence of periodontal ligature, there was an increase in this parameter in all groups. The TNFα gene expression, an inflammatory marker, in periodontal tissue was similar in obese and CTL rats. The presence of ligature increased TNFα gene expression in both groups, but in a lower extension in MSG-obese rats. 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