Silver nanoparticles in mouthwashes against infection caused by SARS-CoV-2: a scoping review / Nanopartículas de prata em enxaguatórios bucais para uso em infecções por SARS-CoV-2: uma revisão de escopo

The Silver nanoparticle (AgNPs) have received attention for their antiviral potential against SARS-CoV-2. The objective is to conduct a scope review and map the scientific evidence on the use of AgNPs in mouthwashes as an adjunct in decreasing the viral load in the oral cavity of patients with SARS-CoV-2. A search was performed in the PubMed, Medline, Scielo databases, and a manual search in the reference lists, following the standards of the Joanna Briggs Institute for Scoping Review without restriction of year, language or sample size. Thus, 14 articles were included, where they researched the use of AgNPs with antiviral effect against SARS-CoV-2, mouthwashes for SARS-CoV-2 and AgNPs as mouthwashes. We can suggest that AgNPs are likely antiviral therapies for SARS-CoV-2 and its use in mouthwashes associated with other therapies are promising strands for decreasing viral load and infection by the vírus (AU)

As nanopartículas de prata (AgNPs) têm recebido atenção por seu potencial antiviral no SARS-CoV-2. O objetivo deste trabalho é realizar uma revisão de escopo e mapear as evidências científicas sobre o uso de AgNPs em bochechos como adjuvante na diminuição da carga viral na cavidade oral de pacientes com SARS-CoV-2. Foi realizada busca nas bases de dados PubMed, Medline, Scielo e busca manual nas listas de referências, seguindo os padrões do Joanna Briggs Institute for Scoping Review sem restrição de ano, idioma ou tamanho da amostra. Assim, foram incluídos 14 artigos, onde pesquisaram o uso de AgNPs com efeito antiviral contra SARS-CoV-2, enxaguatórios bucais para SARS-CoV-2 e AgNPs como enxaguatórios bucais, vertentes promissoras para diminuição da carga viral e infecção pelo vírus.(AU)

Intraoral lipoma with degenerative changes mimicking atypical lipomatous tumor: an immunohistochemical study

ABSTRACT Lipomas are mesenchymal neoplasms relatively uncommon in the oral cavity. Lipomas can exhibit histopathological features mimicking atypical lipomatous tumors (ALT) or dysplastic lipoma (DL) in the presence of degenerative changes. Relevantly, immunohistochemistry assists in the correct diagnosis. Herein, we present the case of a 54-year-old male with a sessile nodule located on the dorsum of the tongue. The histopathological analysis showed a diffuse, non-circumscribed adipocytic proliferation constituted by cells of variable size containing cytoplasmic vacuoles and displaced nuclei, some resembling lipoblasts supported by fibrous connective tissue stroma. By immunohistochemistry, tumor cells were positive for vimentin, S100, FASN, CD10, and p16. Rb expression was intact. Moreover, CD34, p53, MDM2, and CDK4 were negative. After 2-year of follow-up, no alteration or recurrence was observed. In conclusion, MDM2, CDK4, p53, and Rb immunomarkers can be used reliably to differentiate benign lipoma with degenerative changes from ALT and DL.

Prevalence of cleft lip and palate in Bauru, SP ­ concordance among registries of HRAC/USP, DNV and SINASC / Prevalência da fissura labiopalatina em Bauru, SP ­ concordância entre os registros do HRAC/USP, DNV e SINASC

Objective: Congenital defects, including cleft lip and palate, increase the morbidity and mortality in the affected population. This study aimed to determine the prevalence of cleft lip and palate in the city of Bauru, Brazil, by evaluation of registry in the Brazilian Livebirth Certificate (DNV) and the Information System on Livebirths (SINASC), and analyzed the concordance of diagnosis compared with registries of the Hospital for Rehabilitation of Craniofacial Anomalies (HRAC/USP), located in the same city. Material and Methods: This retrospective observational study comprised analysis of all DNVs and identification of individuals with clefts born and living in Bauru, comparing with data from HRAC/USP. The prevalence was calculated by dividing the number of children born with clefts in the study period by the total number of livebirths registered. The reporting of different types of clefts was compared by the chi-square test. Results: Overall, 50,898 DNV were evaluated, among which there were 25 reported cases of cleft lip and/or palate. In the same period, HRAC/USP registered 77 cases born in Bauru, representing 67.5% of underreporting of the occurrence of clefts. Cleft palate was the most prevalent (34.9%), followed by cleft lip and palate (31.7%) and cleft lip (30.2%), mostly affecting males (58.5%). The reporting of cleft palate (16.12%) was lower compared to cleft lip (43.75%) and cleft lip and palate (54.54%). Conclusion: The study revealed predominance of cleft palate, with significant underreporting of clefts in the public health system, especially for cleft palate as compared to cleft lip and cleft lip and palate (AU)

Objetivo: Os defeitos congênitos, incluindo fenda labial e palatina, aumentam a morbidade e mortalidade na população afetada. Este estudo teve como objetivo determinar a prevalência de fissura labiopalatina na cidade de Bauru, Brasil, por meio da avaliação do registro na Certidão de Nascimento de Vivos (DNV) e no Sistema de Informação de Nascidos Vivos (SINASC), e analisar a concordância do diagnóstico em comparação com registros do Hospital de Reabilitação de Anomalias Craniofaciais (HRAC / USP), localizado na mesma cidade. Material e Métodos: Este estudo observacional retrospectivo compreendeu a análise de todas as DNVs e a identificação dos indivíduos com fissuras nascidos e residentes em Bauru, comparando com os dados do HRAC / USP. A prevalência foi calculada dividindo-se o número de filhos nascidos com fissura no período do estudo pelo total de nascidos vivos registrados. O relato de diferentes tipos de fissuras foi comparado pelo teste do qui-quadrado. Resultados: No geral, foram avaliadas 50.898 DNV, entre as quais houve 25 casos notificados de fenda labial e / ou palatina. No mesmo período, o HRAC / USP registrou 77 casos nascidos em Bauru, representando 67,5% de subnotificação da ocorrência de fissuras. A fenda palatina foi a mais prevalente (34,9%), seguida da fenda labiopalatina (31,7%) e fenda labial (30,2%), ocorrendo principalmente no sexo masculino (58,5%). O relato de fissura palatina (16,12%) foi menor em comparação com fissura labial (43,75%) e fissura labiopalatina (54,54%). Conclusão: O estudo revelou predomínio de fissura palatina, com subnotificação significativa de fissuras no sistema público de saúde, principalmente para fenda palatina em relação à fenda labial e labiopalatina. (AU)