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Med Oral Patol Oral Cir Bucal. 2021 Jan 1;26(1):e1-e7. doi: 10.4317/medoral.23162.
Oral microorganisms produce damage through the transfer to bloodstream, colonizing other tissues or direct damage in the oral cavity. Aim to study the quantitative interactions between C. albicans and the mutans streptococci and ms serotypes in the saliva of the oral cavity of patients with Down syndrome (DS).
Included 120 patients of both genders, 60 patients with Down syndrome (DS) and 60 pa- tients as a control group (CG). Samples of saliva were taken, and bacteria and fungi were grown on TYCSB and Saboureaud agar. Microbiological, serological and quantitative analyses were performed to determine the kind of isolated of microorganisms corresponding to the ms c, e, f and k for species S. mutans and d and g for S. sobrinus and C. albicans. Electronic scanning microscopy was employed to visualize and confirm the colonies under study. Statistics analysis included t-test proofs for matched data test, Scheffé and ANOVA.
Forming units (CFU) per mL of saliva of C. albicans a significant difference was observed among DS<CG groups. A correlation of the C. albicans quantity and the ms count was found by age intervals however, tendencies were different in SD and CG. Also, the CFU of C. albicans was different among the serotypes of ms (c, e, f, k <d, g, h, <notyped).
These results show a significant non-random association between these two commensal microorganisms in different patient groups.
口腔微生物通过转移到血液中、在口腔内定植于其他组织或直接造成损伤来产生危害。本研究旨在探讨唐氏综合征(DS)患者口腔唾液中白色念珠菌(C.albicans)与变形链球菌(mutans streptococci)及其血清型(ms)之间的定量相互作用。
纳入 120 名患者,其中 60 名唐氏综合征患者(DS 组),60 名作为对照组(CG 组)。采集唾液样本,在 TYCSB 和 Sabouraud 琼脂上培养细菌和真菌。进行微生物学、血清学和定量分析,以确定分离出的微生物种类,包括 ms 血清型 c、e、f 和 k 对应的 S.mutans 和 d 和 g 对应的 S.sobrinus,以及 C.albicans。采用电子扫描显微镜对研究中的菌落进行可视化和确认。统计分析包括配对数据检验的 t 检验、Scheffé 和 ANOVA。
唾液中 C.albicans 的形成单位(CFU)/mL 在 DS<CG 组之间存在显著差异。通过年龄间隔发现 C.albicans 数量与 ms 计数之间存在相关性,但在 SD 和 CG 中趋势不同。此外,CFU 的 C.albicans 在不同的 ms 血清型(c、e、f、k<d、g、h、未定型)之间也存在差异。
这些结果表明,在不同的患者群体中,这两种共生微生物之间存在显著的非随机关联。