[Characteristics of bronchoalveolar lavage fluid microbial distribution at different disease stages and its relationship with immune function in children with refractory Mycoplasma pneumoniae pneumonia].

Q3 Medicine
Chuan Yao, Xiao Zhang, Rui Xu
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引用次数: 0

Abstract

Objectives: To study the characteristics of bronchoalveolar lavage fluid (BALF) microbial distribution at different stages of refractory Mycoplasma pneumoniae pneumonia (RMPP) in children and its relationship with immune function.

Methods: A total of 108 children with RMPP were enrolled. The relative abundance, richness, and diversity of BALF microbiota, as well as immune function, were compared between the acute phase (n=61) and recovery phase (n=47). The correlations between the richness and diversity of BALF microbiota and immune function were analyzed.

Results: The relative abundance of Propionibacterium, as well as the Simpson index, Shannon index, Chao1 index, and Observed species index of BALF microbiota in the acute phase were significantly lower than those in the recovery phase (P<0.05). The relative abundances of Streptococcus and Prevotella, as well as the levels of complement C3, complement C4, immunoglobulin A (IgA), immunoglobulin G (IgG), and immunoglobulin M (IgM), were significantly higher in the acute phase than in the recovery phase (P<0.05). Simpson, Shannon, Chao1, and Observed species indices were negatively correlated with levels of complement C3, complement C4, IgA, IgM, and IgG (P<0.05).

Conclusions: In children with RMPP, the relative abundance of Propionibacterium and the richness and diversity of BALF microbiota in the acute phase are lower than those in the recovery phase, while the relative abundances of Streptococcus and Prevotella are higher in the acute phase. Microbial richness and diversity are closely related to immune function.

[难治性肺炎支原体肺炎患儿不同疾病阶段支气管肺泡灌洗液微生物分布特征及其与免疫功能的关系]。
目的:探讨小儿难治性肺炎支原体肺炎(RMPP)不同阶段支气管肺泡灌洗液(BALF)微生物分布特点及其与免疫功能的关系。方法:共纳入108例RMPP患儿。比较急性期(n=61)和恢复期(n=47) BALF菌群的相对丰度、丰富度和多样性以及免疫功能。分析了BALF菌群丰富度和多样性与免疫功能的相关性。结果:丙酸菌属的相对丰度,以及辛普森指数,香农指数,Chao1指数,并观察物种指数BALF微生物群在急性期明显低于那些在经济复苏阶段(PStreptococcus普氏菌,以及水平的补体C3, C4补充,免疫球蛋白(IgA),(免疫球蛋白),免疫球蛋白G和免疫球蛋白M (IgM)在急性期显著高于在恢复阶段(PPConclusions:在RMPP患儿中,急性期丙酸杆菌的相对丰度和BALF菌群的丰富度和多样性低于恢复期,而链球菌和普雷沃氏菌的相对丰度在急性期较高。微生物的丰富度和多样性与免疫功能密切相关。
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来源期刊
中国当代儿科杂志
中国当代儿科杂志 Medicine-Pediatrics, Perinatology and Child Health
CiteScore
1.50
自引率
0.00%
发文量
5006
期刊介绍: The Chinese Journal of Contemporary Pediatrics (CJCP) is a peer-reviewed open access periodical in the field of pediatrics that is sponsored by the Central South University/Xiangya Hospital of Central South University and under the auspices of the Ministry of Education of China. It is cited as a source in the scientific and technological papers of Chinese journals, the Chinese Science Citation Database (CSCD), and is one of the core Chinese periodicals in the Peking University Library. CJCP has been indexed by MEDLINE/PubMed/PMC of the American National Library, American Chemical Abstracts (CA), Holland Medical Abstracts (EM), Western Pacific Region Index Medicus (WPRIM), Scopus and EBSCO. It is a monthly periodical published on the 15th of every month, and is distributed both at home and overseas. The Chinese series publication number is CN 43-1301/R;ISSN 1008-8830. The tenet of CJCP is to “reflect the latest advances and be open to the world”. The periodical reports the most recent advances in the contemporary pediatric field. The majority of the readership is pediatric doctors and researchers.
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