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Shao A, He Q, Jiao X, Liu J. Hemoptysis caused by Parvimonas micra: case report and literature review. Front Public Health 2024; 11:1307902. [PMID: 38389952 PMCID: PMC10883377 DOI: 10.3389/fpubh.2023.1307902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 12/29/2023] [Indexed: 02/24/2024] Open
Abstract
Background Parvimonas micra (P. micra), a Gram-positive anaerobic bacterium, exhibits colonization tendencies on oral mucosal and skin surfaces, potentially evolving into a pathogenic entity associated with diverse diseases. The diagnostic trajectory for P. micra-related diseases encounters delays, often with severe consequences, including fatality, attributed to the absence of symptom specificity and challenges in culture. The absence of a consensus on the diagnostic and therapeutic approaches to P. micra exacerbates the complexity of addressing associated conditions. This study aims to elucidate and scrutinize the clinical manifestations linked to P. micra, drawing insights from an extensive literature review of pertinent case reports. Case presentation A 53-year-old male sought medical attention at our institution presenting with recurrent hemoptysis. Empirical treatment was initiated while awaiting pathogen culture results; however, the patient's symptoms persisted. Subsequent metagenomic next-generation sequencing (mNGS) analysis revealed a pulmonary infection attributable to P. micra. Resolution of symptoms occurred following treatment with piperacillin sulbactam sodium and moxifloxacin hydrochloride. A comprehensive literature review, utilizing the PubMed database, was conducted to assess case reports over the last decade where P. micra was identified as the causative agent. Conclusion The literature analysis underscores the predilection of P. micra for immunocompromised populations afflicted by cardiovascular diseases, diabetes, orthopedic conditions, and tumors. Risk factors, including oral and periodontal hygiene, smoking, and alcohol consumption, were found to be associated with P. micra infections. Clinical manifestations encompassed fever, cough, sputum production, and back pain, potentially leading to severe outcomes such as Spondylodiscitis, septic arthritis, lung abscess, bacteremia, sepsis, and mortality. While conventional bacterial culture remains the primary diagnostic tool, emerging technologies like mNGS offer alternative considerations. In terms of treatment modalities, β-lactam antibiotics and nitroimidazoles predominated, exhibiting recovery rates of 56.10% (46/82) and 23.17% (19/82), respectively. This case report and literature review collectively aim to enhance awareness among clinicians and laboratory medicine professionals regarding the intricacies of P. micra-associated infections.
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Affiliation(s)
- Axue Shao
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qingqing He
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xin Jiao
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianbo Liu
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
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Li P, Jiang J, Li Y, Lan Y, Yang F, Wang J, Xie Y, Xiong F, Wu J, Liu H, Fan Z. Metagenomic analysis reveals distinct changes in the gut microbiome of obese Chinese children. BMC Genomics 2023; 24:721. [PMID: 38031016 PMCID: PMC10685578 DOI: 10.1186/s12864-023-09805-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 11/13/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND The prevalence of obese children in China is increasing, which poses a great challenge to public health. Gut microbes play an important role in human gut health, and changes in gut status are closely related to obesity. However, how gut microbes contribute to obesity in children remains unclear. In our study, we performed shotgun metagenomic sequencing of feces from 23 obese children, 8 overweight children and 22 control children in Chengdu, Sichuan, China. RESULTS We observed a distinct difference in the gut microbiome of obese children and that of controls. Compared with the controls, bacterial pathogen Campylobacter rectus was significantly more abundant in obese children. In addition, functional annotation of microbial genes revealed that there might be gut inflammation in obese children. The guts of overweight children might belong to the transition state between obese and control children due to a gradient in relative abundance of differentially abundant species. Finally, we compared the gut metagenomes of obese Chinese children and obese Mexican children and found that Trichuris trichiura was significantly more abundant in the guts of obese Mexican children. CONCLUSIONS Our results contribute to understanding the changes in the species and function of intestinal microbes in obese Chinese children.
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Affiliation(s)
- Ping Li
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, NHC Key Laboratory of Chronobiology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jiyang Jiang
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Yifei Li
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, NHC Key Laboratory of Chronobiology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yue Lan
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Fan Yang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, NHC Key Laboratory of Chronobiology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jiao Wang
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Yuxin Xie
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Fei Xiong
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, NHC Key Laboratory of Chronobiology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jinhui Wu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, NHC Key Laboratory of Chronobiology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Hanmin Liu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, NHC Key Laboratory of Chronobiology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Zhenxin Fan
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China.
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