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au:"ARRUDA, José Alcides Almeida"

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Evaluation of peripheral nerve fibers and mast cells in burning mouth syndrome
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ARANTES, Diego Antonio Costa

; TOLEDO, Ítalo Cordeiro de

; DE ARRUDA, José Alcides Almeida

; MESQUITA, Ricardo Alves

; CASTRO, Luciano Alberto de

; BATISTA, Aline Carvalho

; RIBEIRO-ROTTA, Rejane Faria

Brazilian Oral Research

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2023, Volume 37 elocation e055

Resumo: En | Texto: En | PDF: En

Abstract Emerging evidence has revealed a cross-talk in the etiopathogenesis of burning mouth syndrome (BMS) related to peripheral nerve fibers (NF) and neuropeptides secreted by mast cells. Here, we investigated the S-100+ density and PGP 9.5+ integrity of peripheral NF and the tryptase+ mast cell density in the oral mucosa of BMS patients and healthy individuals. A total of 23 oral mucosa specimens (12 BMS and 11 controls) were evaluated. The clinical diagnosis of BMS was based on a careful examination, excluding other local and systemic causes. Samples were taken from an incisional biopsy of the tongue mucosa of individuals with symptomatic BMS, while the margins of the non-neoplastic tongue biopsy served as controls of healthy individuals. Immunohistochemistry was performed to determine the density/mm2 of S-100+, PGP 9.5+ peripheral NF, and tryptase+ mast cells. Similar densities of S-100+, PGP 9.5+ peripheral NF, and tryptase+ mast cells were found in cases of BMS, with a median value of 3.70, 0.70, and 29.24/mm2, respectively, and in the control group, with a median value of 2.60, 0.80, and 26.01/mm2, respectively (p > 0.05). Moreover, the relationship between S100+ and PGP 9.5+ peripheral NF was the same in both groups (p = 0.70). This study demonstrated that there were no alterations in the density and integrity of peripheral NF in the tongue of symptomatic BMS patients. However, the sensitization of peripheral NF in this disease may not depend on mast cell density.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0055

Effects of tobacco on the DNA of smokers and non-smokers affected by OSCC: systematic review and meta-analysis
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SCHUCH, Lauren Frenzel

; VIANA, Karolina Skarlet Silva

; DE ARRUDA, José Alcides Almeida

; ABREU, Lucas Guimarães

; AGUIAR, Maria Cássia Ferreira de

; BERNARDES, Vanessa Fátima

Brazilian Oral Research

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2023, Volume 37 elocation e008

Resumo: En | Texto: En | PDF: En

Abstract Scientific evidence about genetic and molecular changes in oral squamous cell carcinoma (OSCC) among smokers and non-smokers is inconclusive. This systematic review and meta-analysis assessed the effects of tobacco on the DNA of individuals with OSCC based on protein mutations. Electronic searches were conducted on PubMed, Ovid, Web of Science, and Scopus to identify observational studies published up to January/2022. The Joanna Briggs Institute tool was used for the critical appraisal of studies. The certainty of the evidence was evaluated. Twenty-three studies assessing 4,060 individuals (2,967 smokers vs. 1,093 non-smokers) were included in this review. Fifteen groups of proteins/genes were investigated. Analysis of the quality of articles revealed low risk of bias in most studies. The certainty of the evidence was very low. The meta-analysis confirmed no significant difference between smokers and non-smokers with respect to damage to GSTM1 (OR: 0.60; 95%CI: 0.30–1.18), GSTT1 (OR: 1.18; 95%CI:0.49–2.83), hydrolase proteins (Ku70 and Ku80) (OR: 0.74; 95%CI: 0.18–3.05), and transferase proteins (GSTM1, GSTT1, GSTM3) (OR: 0.74; 95%CI: 0.47–1.18). Most of the studies included showed that smokers are more likely to exhibit genetic instability. However, the meta-analysis revealed that smokers do not necessarily have more genetic alterations in the DNA than non-smokers.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0008

Evaluation of the expression of nerve fiber markers in healthy and inflamed dental pulp
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DE ARRUDA, José Alcides Almeida

; GOMES, Heloisa de Sousa

; SAMPAIO, Felipe Cavalcanti

; BRUNO, Kely Firmino

; ESTRELA, Carlos

; MENDONÇA, Elismauro Francisco

; ARANTES, Diego Antonio Costa

Brazilian Oral Research

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2023, Volume 37 elocation e020

Resumo: En | Texto: En | PDF: En

Abstract The diagnosis of irreversible pulpitis (IP) depends on clinical data, especially the chief complaint of the patient, visual inspection, response to the application of stimuli, and radiographic examination. The characterization of nerve fibers (NF) in IP may contribute to better interpret painful symptoms, but has been barely explored. This study sought to characterize the density and integrity of NF in 16 samples of IP and in five healthy pulps (HP) using S-100 and PGP 9.5 markers. Immunohistochemistry was performed to determine the density/mm2 of S-100+ and PGP 9.5+ in NF. The amount of degenerated NF was obtained by subtracting the total NF density from the amount of intact NF. Associations between NF density and integrity and symptomatology were calculated. All samples were positive for S-100 and PGP 9.5. Compared to HP samples (38.20/mm2), IP samples had a lower density of intact NF (6.24/mm2). A significantly higher density of degenerated NF was found in IP samples with spontaneous pain (39.59/mm2) compared to those with provoked pain (23.96/mm2) (p = 0.02). No association was observed between intensity of the inflammatory infiltrate and NF density and integrity (p > 0.05). The findings of this study suggest that pulpitis may involve different stages of degeneration and may be more advanced in cases with spontaneous pain. The symptoms reported by affected individuals do not appear to depend on the intensity of the inflammatory infiltrate, but rather on the integrity of NF.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0020

Contribution of public oral pathology services to the diagnosis of oral and oropharyngeal cancer in Brazil
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LOUREDO, Brendo Vinicius Rodrigues

; CURADO, Maria Paula

; PENAFORT, Paulo Victor Mendes

; DE ARRUDA, José Alcides Almeida

; ABREU, Lucas Guimarães

; MESQUITA, Ricardo Alves

; PINTO-JÚNIOR, Décio dos Santos

; ABRAHÃO, Aline Corrêa

; ANDRADE, Bruno Augusto Benevenuto de

; AGOSTINI, Michelle

; MORAES, Renata Mendonça

; ANBINDER, Ana Lia

; DOURADO, Pedro Henrique Silva

; SANTOS, Teresa Cristina Ribeiro Bartholomeu dos

; PIRES, Fábio Ramoa

; BORDIGNON, Natalia Cristina Trentin

; GONDAK, Rogério Oliveira

; DE OLIVEIRA, Marcia Gaiger

; CARRARD, Vinicius Coelho

; MARTINS, Manoela Domingues

; SOUSA-NETO, Sebastião Silvério

; ARANTES, Diego Antônio Costa

; MENDONÇA, Elismauro Francisco

; CIESLAK-SANCHES, Silvia Roberta

; ANTUNES, Daniella Moraes

; AMARAL-SILVA, Gleyson Kleber do

; MANIERI, Patricia Rubia

; RAMALHO, Luciana Maria Pedreira

; DOS SANTOS, Jean Nunes

; LEONEL, Augusto César Leal da Silva

; PEREZ, Danyel Elias da Cruz

; VERHEUL, Hannah Carmem Carlos Ribeiro Silva

; BARROSO, Keila Martha Amorim

; RODRIGUES, Flávia Luiza Santos

; GONZAGA, Amanda Katarinny Goes

; FERNANDES, Romana Renery

; DE SOUZA, Lélia Batista

; SOUZA, Lucas Lacerda de

; PONTES, Flávia Sirotheau Corrêa

; PONTES, Hélder Antônio Rebelo

; SILVA, Caroline Alfaia

; CÂMARA, Jeconias

; LIBÓRIO-KIMURA, Tatiana Nayara

; SANTOS-SILVA, Alan Roger

; LOPES, Márcio Ajudarte

; ALMEIDA, Oslei Paes de

; ROMAÑACH, Mário José

; VARGAS, Pablo Agustin

Brazilian Oral Research

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2023, Volume 37 elocation e126

Resumo: En | Texto: En | PDF: En

Abstract This study aimed to evaluate the contribution of oral and maxillofacial pathology laboratories (OMPLs) in Brazilian public universities to the diagnosis of lip, oral cavity, and oropharyngeal squamous cell carcinoma (SCC). A cross-sectional study was performed using biopsy records from a consortium of sixteen public OMPLs from all regions of Brazil (North, Northeast, Central-West, Southeast, and South). Clinical and demographic data of patients diagnosed with lip, oral cavity, and oropharyngeal SCC between 2010 and 2019 were collected from the patients’ histopathological records. Of the 120,010 oral and maxillofacial biopsies (2010-2019), 6.9% (8,321 cases) were diagnosed as lip (0.8%, 951 cases), oral cavity (4.9%, 5,971 cases), and oropharyngeal (1.2%, 1,399 cases) SCCs. Most cases were from Brazil’s Southeast (64.5%), where six of the OMPLs analyzed are located. The predominant profile of patients with lip and oral cavity SCC was Caucasian men, with a mean age over 60 years, low schooling level, and a previous history of heavy tobacco consumption. In the oropharyngeal group, the majority were non-Caucasian men, with a mean age under 60 years, had a low education level, and were former/current tobacco and alcohol users. According to data from the Brazilian National Cancer Institute, approximately 9.9% of the total lip, oral cavity, and oropharyngeal SCCs reported over the last decade in Brazil may have been diagnosed at the OMPLs included in the current study. Therefore, this data confirms the contribution of public OMPLs with respect to the important diagnostic support they provide to the oral healthcare services extended by the Brazilian Public Health System.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0126

ALDH1 expression and potential clinical implications in chronic inflammatory periapical lesions
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Farias, Zilda Betânia Barbosa Medeiros de

; Silva, Leorik Pereira da

; de Arruda, José Alcides Almeida

; Cavalcante, Jade de Souza

; Almeida, Híttalo Carlos Rodrigues de

; Oliveira, Maria Cristina Valença de

; Souza, Lélia Batista de

; Sobral, Ana Paula Veras

Brazilian Oral Research

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2022, Volume 36 elocation e019

Resumo: En | Texto: En | PDF: En

Abstract: Aldehyde dehydrogenase 1 (ALDH-1) is a marker of stem cells in a variety of diseases, but its role in individuals with chronic inflammatory periapical lesions remains unknown. The aim of this study was to investigate the presence of cells with a stem cell profile based on the immunoexpression of ALDH-1 in periapical granulomas (PGs) and radicular cysts (RCs). A total of 51 cases of periapical lesions (25 PGs and 26 RCs) were subjected to immunohistochemical study. The anti-ALDH-1 antibody was applied using the immunoperoxidase technique. An immunoexpression score (intensity vs. percentage of cells) was used, with the cases being classified as low expression (score: 0 to 4) and high expression (score: 6 to 9). The Chi-square test was used with a 5% level of significance. Immunoexpression of ALDH-1 was detected in all cases of PGs and RCs. In PG cases, the expression was diffuse in connective tissue cells, with most cases exhibiting high expression (n = 18; 69.2%), while in RC cases the expression revealed focal distribution in cells of the capsule and epithelial cells of the cystic lining, with most cases classified as low expression (n = 18; 72%). Significant differences in the expression scores of ALDH-1 were observed in PGs (p = 0.003). The variable expression of ALDH-1 suggests the presence of cells with stem cell profiles in PGs and RCs. These findings suggest that periapical tissues infiltrated by chronic inflammation can recruit important cells for the repair or evolution of periapical lesions.

https://doi.org/10.1590/1807-3107bor-2022.vol36.0019

DNA damage-related proteins in smokers and non-smokers with oral cancer
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Schuch, Lauren Frenzel

; de Arruda, José Alcides Almeida

; Viana, Karolina Skarlet Silva

; Caldeira, Patrícia Carlos

; Abreu, Mauro Henrique Nogueira Guimarães

; Bernardes, Vanessa Fátima

; Aguiar, Maria Cássia Ferreira de

Brazilian Oral Research

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2022, Volume 36 elocation e027

Resumo: En | Texto: En | PDF: En

Abstract: Tobacco smoking involves a high risk of human malignancies, including oral cancer, because it contains multiple carcinogens that cause genetic instability. Thus, a worse prognosis would be expected for cancer patients who are smokers. The aim of this study was to assess the DNA damage response through the expression of checkpoint kinase 2 (CHK2), H2A histone family member X (H2AX), and P53 among smokers and non-smokers with oral squamous cell carcinoma (OSCC). Associations between immunoexpression of proteins and clinicopathological data and histopathological grading were also analyzed. A total of 35 individuals (18 non-smokers and 17 smokers) with OSCC of the tongue and/or floor of the mouth were included. Immunohistochemistry for H2AX was conducted for the identification of double-strand breaks, CHK2, and P53 to evaluate the expression of this protein in cell cycle regulation. The sample consisted of 22 males and 13 females, with a mean age of 63.9±11.8 years. OSCC of non-smokers were well-differentiated tumors in 50% of the cases, and those of smokers were equally distributed into moderately differentiated and poorly differentiated tumors (35.3% each). Overall, 31 (88.6%) cases were CHK2-positive, 27 (77.1%) were H2AX-positive, and 23 (65.7%) were P53-positive, with no difference between smokers and non-smokers (p > 0.05). No association was found between proteins and clinicopathologic data (p > 0.05). Similarities in CHK2, H2AX, and P53 immunohistochemical staining patterns were observed between smokers and non-smokers, and immunoexpression was not associated with clinicopathological parameters. However, the findings indicated consistent expression of these proteins in OSCC.

https://doi.org/10.1590/1807-3107bor-2022.vol36.0027

Indices in dental image exams for bone mineral density evaluation of aromatase inhibitor users
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Barra, Sâmila Gonçalves

; de Arruda, José Alcides Almeida

; Souza, Alessandra Figueiredo

; Brasileiro, Cláudia Borges

; Camargos, Bruno Muzzi

; Lima, Enaldo Melo de

; Souza, Leandro Napier

; Oliveira, Marina Chaves de

; Macari, Soraia

; Silva, Tarcília Aparecida

; Abreu, Lucas Guimaraes

; Mesquita, Ricardo Alves

Brazilian Oral Research

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2022, Volume 36 elocation e138

Resumo: En | Texto: En | PDF: En

Abstract We evaluated the accuracy of radiomorphometric indices (RI) and fractal dimension (FD) for screening bone mineral density (BMD) in postmenopausal patients who had breast cancer and were using aromatase inhibitors (AI). The sample consisted of 40 participants. Digital panoramic radiography (DPR) and cone beam computed tomography (CBCT) were evaluated along with dual-energy X-ray absorptiometry (DXA), which is the gold standard for detecting low BMD. According to the T-scores of DXA, the subjects were assigned into two groups: with normal BMD and with low BMD (osteopenia and osteoporosis). The area under the curve (AUC), sensitivity, and specificity with their respective confidence intervals were determined for DPR and CBCT. For DPR indices, AUC ranged from 52.6 to 75.8%. The mandibular cortical width (MCW) had the highest AUC. For FD, the total trabecular index had the highest sensitivity, while the index anterior to the mental foramen (MF) had the highest specificity. In CBCT, the AUC ranged from 51.8 to 62.0%. The indices with the highest AUC were the molar (M) and anterior (A). The symphysis (S) index had the highest sensitivity and the posterior (P) index had the highest specificity. Sensitivity and specificity were adequate for the computed tomography index (Inferior; CTI [I]). Therefore, MCW, FD of the mandible angle, and total trabecular ROI in DPR and the CTI (I), M, P, and A indices in CBCT proved to be promising tools in distinguishing individuals with low BMD. Cutoff point for these indices could be a useful tool to investigate low BMD in postmenopausal women taking AI.

https://doi.org/10.1590/1807-3107bor-2022.vol36.0138

Safety protocols for dental care during the COVID-19 pandemic: the experience of a Brazilian hospital service
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SOUZA, Alessandra Figueiredo

; ARRUDA, José Alcides Almeida de

; COSTA, Fernanda Pereira Delgado

; BEMQUERER, Larissa Marques

; CASTRO, Wagner Henriques

; CAMPOS, Felipe Eduardo Baires

; KAKEHASI, Fabiana Maria

; TRAVASSOS, Denise Vieira

; SILVA, Tarcília Aparecida

Brazilian Oral Research

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2021, Volume 35 elocation e070

Resumo: En | Texto: En | PDF: En

Abstract The coronavirus disease (COVID-19) has been prioritized in relation to other illnesses considered critical, such as cancer, cardiovascular diseases/stroke, diabetes, and autoimmune diseases. The management of patients with these diseases involves dental care to reduce systemic complications caused by odontogenic infections, and/or to treat oral manifestations of systemic comorbidities. In this regard, the dental care of these individuals must be guaranteed during the pandemic. Although a high risk of exposure to and catching of COVID-19 is expected to befall dental professionals, biosafety guidelines reduce the likelihood of infection. Thus, the current scenario poses challenges, and offers decision-making approaches and tools that facilitate the management of individuals with oral manifestations of chronic and/or critical diseases, using hospital-based services. This article presents an overview for hospital service providers who are at the forefront of COVID-19 care, including a secure protocol, and clinical guidelines based on the experience of the Hospital das Clínicas in Belo Horizonte, a public referral service, supported by the Brazilian National Health System.

https://doi.org/10.1590/1807-3107bor-2021.vol35.0070 436 downloads

A multicenter study of biopsied oral and maxillofacial lesions in a Brazilian pediatric population
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SILVA, Leni Verônica de Oliveira

; ARRUDA, José Alcides Almeida

; MARTELLI, Stephanie Joana

; KATO, Camila de Nazaré Alves de Oliveira

; NUNES, Laiz Fernanda Mendes

; VASCONCELOS, Ana Carolina Uchoa

; TARQUINIO, Sandra Beatriz Chaves

; GOMES, Ana Paula Neutzling

; GOMEZ, Ricardo Santiago

; MESQUITA, Ricardo Alves

; SILVEIRA, Marcia Maria Fonseca da

; SOBRAL, Ana Paula Veras

Brazilian Oral Research

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2018, Volume 32 elocation e20

Resumo: En | Texto: En | PDF: En

Abstract The aim of this study was to investigate the prevalence of oral and maxillofacial lesions among children from representative regions of Brazil. A retrospective descriptive study was conducted. Biopsy records comprising the period from 2000 to 2015 were obtained from the archives of three Brazilian oral pathology referral centers. A total of 32,506 biopsy specimens were analyzed, and specimens from 1,706 children aged 0–12 years were selected. Gender, age, anatomical location and histopathological diagnosis were evaluated. Descriptive statistics was carried out. Likelihood ratio tests were used to evaluate the association between the categorical variables. The level of significance was set at 0.05. The post-hoc test was used to identify the subgroups that significantly differed from one another, and the Bonferroni correction was applied. A total of 1,706 oral and maxillofacial lesions were diagnosed in pediatric patients, including 51.9% girls. Oral mucocele was the most prevalent reactive/inflammatory lesion (64%). The most commonly affected sites were the lips (34.5%) and mandible (19.9%). A significant association was observed between age and the group of lesions of the oral cavity (p < 0.001), and between age and anatomical location (p < 0.001). Pediatric oral and maxillofacial lesions were frequent and showed wide diversity, with the prevalence of mucocele. Knowledge of oral lesions is important for pediatric dentists worldwide, since it provides accurate data for the diagnosis and oral health of children.

https://doi.org/10.1590/1807-3107bor-2018.vol32.0020 2655 downloads

10.

Immunohistochemical expression of TGF-β1 and MMP-9 in periapical lesions
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ÁLVARES, Pâmella Recco

; ARRUDA, José Alcides Almeida de

; SILVA, Leorik Pereira da

; NASCIMENTO, George João Ferreira do

; SILVEIRA, Maria Fonseca da

; SOBRAL, Ana Paula Veras

Brazilian Oral Research

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2017, Volume 31 elocation e51

Resumo: En | Texto: En | PDF: En

Abstract The objective of this study was to evaluate the expression of matrix metalloproteinase 9 (MMP-9) and transforming growth factor beta (TGF-β1) in periapical lesion samples correlated with the intensity of the inflammatory infiltrate and thickness of the epithelial lining. Forty-five cases of periapical lesions (23 periapical granulomas and 22 radicular cysts) were subjected to morphological and immunohistochemical analyses using anti-MMP-9 and anti-TGF-β1 antibodies. The data were analyzed using the following tests: non-parametric Mann-Whitney, chi-square, Fisher’s exact test and Spearman’s correlation test (P<0.05). Analysis of inflammatory infiltrate revealed that 78% of periapical granulomas presented infiltrate grade III, in contrast with 32% of radicular cysts (P<0.001). Morphological evaluation of the epithelial thickness in radicular cysts revealed the presence of atrophic epithelium in 86% of the cysts. The immunostaining of MMP-9 was score 2 in 67% of the granulomas and 77% of the cysts. Both lesions were predominantly score 1 for TGF-β1. Significant differences were confirmed between the expression scores of TGF-β1 and MMP-9 in periapical granulomas (p = 0.004) and in radicular cysts (p < 0.001). Expression of TGF-β1 was different for periapical granulomas and radicular cysts. This immunoregulatory cytokine seems more representative in asymptomatic lesions. The extracellular matrix remodeling process dependent on MMP-9 seems to be similar for both periapical granulomas and radicular cysts. TGF-β1 and MMP-9 may play an important role in the maintenance of periapical lesions.

https://doi.org/10.1590/1807-3107bor-2017.vol31.0051 1821 downloads

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