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Post by Petr75 » Thu Oct 01, 2020 4:59 am

2020 Aug 27
Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (UNESP), Francisco José Longo , Brazil
Oral Colonization by Candida Species in Patients with Multiple Sclerosis


Introduction: Multiple sclerosis (MS) is a chronic inflammatory demyelinating autoimmune disease that affects the central nervous system. Since immune system plays a key role in this disease, patients with MS can present higher risk of infections.

Purpose: This study aimed to investigate the prevalence of Candida spp. in the oral cavity of MS patients in relation to a control group METHODS: In total, 100 individuals were selected: 55 diagnosed with MS and 45 healthy individuals (control group). Saliva samples were collected and seeded in culture media selecting for Candida. Following an incubation period of 48 h, colony-forming units (CFU mL-1) were counted and colonies were isolated for Candida species identification by multiplex PCR. The results were analysed by chi-squared and Mann-Whitney U statistical tests considering a significance level of 5%.

Results: Candida spp. were confirmed in the oral cavity of 50.09% patients in the MS group and 35.55% individuals in the control group. In individuals positive for the growth of Candida spp., the median values of Candida colonies were 220 CFU mL-1 for the MS group and 120 CFU mL-1 for the control group. However, no statistically significant differences were observed between groups for both prevalence and CFU mL-1 count. Of the Candida species identified, 73.91% were C. albicans, 21.73% C. glabrata, 2.17% C. tropicalis, and 2.17% C. krusei.

Conclusions: The colonization of Candida spp. in the oral cavity of individuals with multiple sclerosis was higher than in the control group; however these findings were not proven to be statistically significant.

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