Relação entre Esclerose Múltipla e infecções fúngicas orais
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Data
2019-11-21
Autores
Cunha, Eliana Tomomi Shimabukuro
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Universidade Estadual Paulista (Unesp)
Resumo
RESUMO A Esclerose Múltipla (EM) é uma doença inflamatória, autoimune, crônica e desmielinizante que acomete o Sistema Nervoso Central (SNC). Sua etiologia ainda não é bem definida, mas vários fatores de risco podem estar associados à doença, incluindo fatores genéticos e ambientais. Recentemente, tem sido sugerido que a microbiota do indivíduo pode ter influência na EM. Sendo assim, o objetivo desse estudo foi investigar a relação entre EM e infecções fúngicas orais. Foram selecionados 100 indivíduos, sendo 55 com diagnóstico de EM pelos Critérios de McDonald (2017) e 45 indivíduos saudáveis (grupo controle). Amostras de saliva foram coletadas e semeadas em meios de culturas seletivos para o gênero Candida, incluindo ágar Sabouraud Dextrose com cloranfenicol e CHROMagar Candida. Após período de incubação de 48 horas, foi realizada a contagem do número de Unidades Formadoras de Colônias (UFC/mL), e as colônias isoladas foram submetidas à análise de PCR multiplex para identificação da espécie de Candida. Os resultados foram analisados pelos testes estatísticos de Qui-quadrado e Mann-Whitney, considerando-se nível de significância de 5%. Foi verificado presença de Candida spp. na cavidade bucal de 50,09% dos pacientes do grupo EM e de 35,55% dos indivíduos do grupo controle. Nos indivíduos com crescimento positivo para Candida spp., a mediana do número de colônias de Candida observadas foi de 220 UFC/mL para o grupo EM e 120 UFC/mL para o grupo controle. Entretanto, não foram observadas diferenças estatisticamente significantes entre os grupos tanto para a prevalência como contagem de UFC/mL. Em relação a identificação das espécies de Candida, foi encontrado 73,91% de C. albicans, 21,73% de C. glabrata, 2,17% de C. tropicalis e 2,17% de C. krusei. Concluiu-se que a presença de Candida spp. na cavidade bucal de indivíduos com EM foi mais elevada em relação ao grupo controle.
Multiple Sclerosis (MS) is an inflammatory, autoimmune, chronic and demyelinating disease that affects the Central Nervous System (CNS). Its etiology is not yet well defined, but several risk factors may be associated with the disease, including genetic and environmental factors. Recently, it has been suggested that the individual's microbiota may have influence on MS. Therefore, the objective of this study was to investigate the relationship between MS and oral fungal infections. A total of 100 individuals were selected, 55 of them diagnosed with MS by the McDonald Criteria (2017) and 45 healthy individuals (control group). Saliva samples were collected and seeded in culture medias selectives for the Candida genus, including Sabouraud Dextrose agar with chloramphenicol and CHROMagar Candida. After incubation period of 48 hours, the number of Colony Forming Units (CFU / mL) was counted and the colonies were isolated for identification of the Candida species by multiplex PCR. The results were analyzed by Chi-square and Mann-Whitney statistical tests considering a significant level of 5%. It was verified the presence of Candida spp. in the oral cavity of 50.09% of the patients in the MS group and 35.55% of the individuals in the control group. In individuals with positive growth for Candida spp., the median of Candida colonies observed was 220 CFU/mL for the MS group and 120 CFU/mL for the control group. However, no statistically significant differences were observed between the groups for both prevalence and CFU/mL count. In relation to the identifications of Candida species, it was found 73.91% of C. albicans, 21.73% of C. glabrata, 2.17% of C. tropicalis and 2.17% of C. krusei. It was concluded that the presence of Candida spp. in the oral cavity of individuals with MS was higher than the control group.
Multiple Sclerosis (MS) is an inflammatory, autoimmune, chronic and demyelinating disease that affects the Central Nervous System (CNS). Its etiology is not yet well defined, but several risk factors may be associated with the disease, including genetic and environmental factors. Recently, it has been suggested that the individual's microbiota may have influence on MS. Therefore, the objective of this study was to investigate the relationship between MS and oral fungal infections. A total of 100 individuals were selected, 55 of them diagnosed with MS by the McDonald Criteria (2017) and 45 healthy individuals (control group). Saliva samples were collected and seeded in culture medias selectives for the Candida genus, including Sabouraud Dextrose agar with chloramphenicol and CHROMagar Candida. After incubation period of 48 hours, the number of Colony Forming Units (CFU / mL) was counted and the colonies were isolated for identification of the Candida species by multiplex PCR. The results were analyzed by Chi-square and Mann-Whitney statistical tests considering a significant level of 5%. It was verified the presence of Candida spp. in the oral cavity of 50.09% of the patients in the MS group and 35.55% of the individuals in the control group. In individuals with positive growth for Candida spp., the median of Candida colonies observed was 220 CFU/mL for the MS group and 120 CFU/mL for the control group. However, no statistically significant differences were observed between the groups for both prevalence and CFU/mL count. In relation to the identifications of Candida species, it was found 73.91% of C. albicans, 21.73% of C. glabrata, 2.17% of C. tropicalis and 2.17% of C. krusei. It was concluded that the presence of Candida spp. in the oral cavity of individuals with MS was higher than the control group.
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Palavras-chave
Esclerose Múltipla, Doença desmielinizante, Candida spp., Multiple sclerosis, Demyelinating disease