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Sousa LH, Linhares EVM, Alexandre JT, Lisboa MR, Furlaneto F, Freitas R, Ribeiro I, Val D, Marques M, Chaves HV, Martins C, Brito GAC, Goes P. Effects of Atorvastatin on Periodontitis of Rats Subjected to Glucocorticoid-Induced Osteoporosis. J Periodontol 2016; 87:1206-16. [PMID: 27240474 DOI: 10.1902/jop.2016.160075] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Atorvastatin (ATV) has shown pleiotropic effects on bone tissue, and osteoporosis can aggravate periodontitis. Thus, the effects of ATV on experimental periodontitis (EP) in rats subjected to glucocorticoid-induced osteoporosis (GIOP) was assessed. METHODS Male Wistar rats were divided into the following groups: 1) naive; 2) EP; 3) GIOP + EP; and 4) ATV. Groups GIOP + EP and ATV received 7 mg/kg dexamethasone intramuscularly once per week for 5 weeks, and the others received saline (SAL). Groups EP, GIOP + EP, and ATV were submitted to EP by ligature around the maxillary left second molars for 11 days. Group ATV received 27 mg/kg ATV orally, and the others received SAL 30 minutes before EP. Periodontium was analyzed by macroscopy, microtomography, and histopathology; by immunohistochemical examination of receptor activator of nuclear factor-κB ligand (RANKL), osteoprotegerin (OPG), wingless (WNT) 10b, dickkopf-related protein 1 (DKK-1), and β-catenin; and by enzyme-linked immunosorbent assay analysis of myeloperoxidase (MPO), tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, IL-8, IL10, reduced glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT). Leukogram, liver and kidney enzymes, and bone-specific alkaline phosphatase (BALP) serum levels were evaluated. RESULTS ATV decreased bone loss, reduced MPO, TNF-α, IL-1β, IL-6, and IL-8, and increased IL-10, GSH, SOD, and CAT levels. ATV reduced RANKL and DKK-1 and increased OPG, WNT10b, and β-catenin expressions and BALP activity. CONCLUSION ATV reduced inflammation, oxidative stress, and bone loss in rats with EP and GIOP, with participation of the WNT signaling pathway.
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Affiliation(s)
- Luzia Hermínia Sousa
- Postgraduate Program of Health Science, Medical School, Federal University of Ceará, Sobral, Ceará, Brazil
| | - Eveline V M Linhares
- Postgraduate Program of Health Science, Medical School, Federal University of Ceará, Sobral, Ceará, Brazil
| | | | - Mario Roberto Lisboa
- Postgraduate Program of Morphological Science, Department of Morphology, Medical School, Federal University of Ceará
| | - Flávia Furlaneto
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirao Preto School of Dentistry, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Raul Freitas
- Postgraduate Program of Morphological Science, Department of Morphology, Medical School, Federal University of Ceará
| | | | - Danielle Val
- Renorbio Postgraduate Program, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Mirna Marques
- Postgraduate Program of Health Science, Medical School, Federal University of Ceará, Sobral, Ceará, Brazil.,School of Medicine, Federal University of Ceará
| | - Hellíada Vasconcelos Chaves
- Postgraduate Program of Health Science, Medical School, Federal University of Ceará, Sobral, Ceará, Brazil.,School of Dentistry, Federal University of Ceará
| | - Conceição Martins
- Postgraduate Program of Morphological Science, Department of Morphology, Medical School, Federal University of Ceará
| | - Gerly A C Brito
- School of Dentistry, Federal University of Ceará.,Department of Morphology, Medical School, Federal University of Ceará
| | - Paula Goes
- Postgraduate Program of Health Science, Medical School, Federal University of Ceará, Sobral, Ceará, Brazil.,Postgraduate Program of Morphological Science, Department of Morphology, Medical School, Federal University of Ceará.,Department of Pathology and Legal Medicine, Medical School, Federal University of Ceará
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Almeida BC, Kleine JPFO, Camargo-Kosugi CM, Lisboa MR, França CN, França JP, Silva IDCG. Analysis of polymorphisms in codons 11, 72 and 248 of TP53 in Brazilian women with breast cancer. Genet Mol Res 2016; 15:gmr7055. [PMID: 26909997 DOI: 10.4238/gmr.15017055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The association between TP53 gene polymorphisms and breast cancer (BC) in Brazilian women is a controversial topic. In this cross-sectional study, we evaluated the association between clinical pathological variables and three polymorphisms (TP53*11, TP53*72, and TP53*248) in BC patients and controls. Genomic DNA was extracted from the blood cells of 393 participants; the cancer-free control subjects were 26-72 years old (41 ± 11.03) and the BC patients were 28-80 years old (51 ± 10.70). We used standard polymerase chain reaction-restriction fragment length polymorphism and confirmed the results by genetic sequencing. In TP53*11, there was 100% homozygous Glu distribution in both groups. TP53*72 showed genotypic distribution: in the control group, there was 16.10% homozygous Pro, and 42.44% heterozygous and 41.46% homozygous Arg; in the BC group, there was 15.43% homozygous Pro, and 42.55% heterozygous and 42.02% homozygous Arg. The relative frequency of each allele was 0.37% for Pro and 0.63% for Arg in the control group, and 0.37% for Pro and 0.63% for Arg in the BC group. The nuclear grade (P = 0.0084) and adapted histological grade (P = 0.0265) were associated with TP53*72. The distribution of the codon 72 genotypes did not deviate from Hardy-Weinberg equilibrium in either group. In TP53*248, there was 100% homozygous Arg distribution in both groups. In codon 72, the Arg allele is the most prevalent in Brazilian women. TP53*72 may be associated with susceptibility to BC, although more studies are required to evaluate the profile of Brazilian women with BC.
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Affiliation(s)
- B C Almeida
- Laboratório de Ginecologia Molecular e Proteômica, Departamento de Ginecologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - J P F O Kleine
- Laboratório de Ginecologia Molecular e Proteômica, Departamento de Ginecologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - C M Camargo-Kosugi
- Laboratório de Ginecologia Molecular e Proteômica, Departamento de Ginecologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil.,Centro de Pesquisa Translacional, Departamento de Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - M R Lisboa
- Laboratório de Ginecologia Molecular e Proteômica, Departamento de Ginecologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - C N França
- Departamento de Lípides, Aterosclerose e Biologia Vascular, Universidade Federal de São Paulo, São Paulo, SP, Brasil
| | - J P França
- Laboratório de Biofísica Celular e Molecular, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brasil
| | - I D C G Silva
- Laboratório de Ginecologia Molecular e Proteômica, Departamento de Ginecologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
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