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Li T, Li M, Feng J, Liu T, Yang L, Yu L. Evaluation and clinical significance of serum neurospecific enolase in children with pneumonia: a case-control study. BMC Pediatr 2024; 24:379. [PMID: 38822291 PMCID: PMC11140899 DOI: 10.1186/s12887-024-04852-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 05/22/2024] [Indexed: 06/02/2024] Open
Abstract
BACKGROUND Neurospecific Enolase (NSE), a multifunctional protein, is present in various tissues of the body and plays an important role in many disease processes, such as infection, inflammation, tumours, injury, and immunity. In recent years, the application of NSE in respiratory diseases has become increasingly widespread and a research hotspot. OBJECTIVE This study aims to explore the relationship between NSE and childhood pneumonia, providing assistance for the diagnosis and assessment of pneumonia. METHODS Using prospective research and case-control methods, We selected 129 children with pneumonia hospitalised in Weifang People's Hospital from September 2020 to April 2022 as the case group. Among them were 67 cases of Mycoplasma pneumoniae pneumonia (MP+), 62 cases of non-Mycoplasma pneumoniae pneumonia (MP -), and 21 cases of severe pneumonia. At the same time, 136 children who underwent outpatient health examinations were selected as the control group. The levels of NSE, ESR, CRP in cases group and NSE in control group were measured separately. RESULT The NSE levels in the MP + group were 17.86 (14.29-22.54) ng/mL, while those in the MP- group were 17.89 (14.10-21.66) ng/mL, both of which were higher than the control group's NSE levels of 13.26(12.18,14.44) ng/mL (H = 46.92, P = 0.000). There was no statistically significant difference in NSE levels between the MP + and MP - groups (P > 0.05). The NSE level in the severe pneumonia group was 27.38 (13.95-34.06) ng/mL, higher than that in the mild pneumonia group, which was 17.68 (14.27-21.04) ng/mL, (P = 0.024). The AUC values for diagnosing pneumonia are NSE0.714, CRP0.539, and ESR0.535, with NSE having the highest diagnostic value. CONCLUSION Serum NSE can serve as an inflammatory indicator for paediatric pneumonia, which has important clinical guidance significance for the diagnosis, condition evaluation, and prognosis of paediatric pneumonia.
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Affiliation(s)
- Tianhua Li
- Department of Paediatrics, Weifang People's Hospital affiliated to Shandong Second Medical University, 151 Guangwen Road, Weifang, 261041, Shandong, China
| | - Minglei Li
- Department of Paediatrics, Weifang People's Hospital affiliated to Shandong Second Medical University, 151 Guangwen Road, Weifang, 261041, Shandong, China
| | - Jie Feng
- Department of Paediatrics, Weifang People's Hospital affiliated to Shandong Second Medical University, 151 Guangwen Road, Weifang, 261041, Shandong, China
| | - Tingting Liu
- Department of Ultrasound, Weifang People's Hospital affiliated to Shandong Second Medical University, 151 Guangwen Road, Weifang, 261041, Shandong, China
| | - Liu Yang
- Department of Paediatrics, Weifang People's Hospital affiliated to Shandong Second Medical University, 151 Guangwen Road, Weifang, 261041, Shandong, China
| | - Lexiang Yu
- Department of Paediatrics, Weifang People's Hospital affiliated to Shandong Second Medical University, 151 Guangwen Road, Weifang, 261041, Shandong, China.
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Yang Z, Zhou J, Su N, Zhang Z, Chen J, Liu P, Ling P. Insights into the defensive roles of lncRNAs during Mycoplasma pneumoniae infection. Front Microbiol 2024; 15:1330660. [PMID: 38585701 PMCID: PMC10995346 DOI: 10.3389/fmicb.2024.1330660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/27/2024] [Indexed: 04/09/2024] Open
Abstract
Mycoplasma pneumoniae causes respiratory tract infections, affecting both children and adults, with varying degrees of severity ranging from mild to life-threatening. In recent years, a new class of regulatory RNAs called long non-coding RNAs (lncRNAs) has been discovered to play crucial roles in regulating gene expression in the host. Research on lncRNAs has greatly expanded our understanding of cellular functions involving RNAs, and it has significantly increased the range of functions of lncRNAs. In lung cancer, transcripts associated with lncRNAs have been identified as regulators of airway and lung inflammation in a process involving protein complexes. An excessive immune response and antibacterial immunity are closely linked to the pathogenesis of M. pneumoniae. The relationship between lncRNAs and M. pneumoniae infection largely involves lncRNAs that participate in antibacterial immunity. This comprehensive review aimed to examine the dysregulation of lncRNAs during M. pneumoniae infection, highlighting the latest advancements in our understanding of the biological functions and molecular mechanisms of lncRNAs in the context of M. pneumoniae infection and indicating avenues for investigating lncRNAs-related therapeutic targets.
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Affiliation(s)
- Zhujun Yang
- Department of Critical Care Medicine, The Central Hospital of Shaoyang City and Affiliated Shaoyang Hospital, Hengyang Medical College, University of South China, Shaoyang, China
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, China
| | - Junjun Zhou
- Department of Critical Care Medicine, The Central Hospital of Shaoyang City and Affiliated Shaoyang Hospital, Hengyang Medical College, University of South China, Shaoyang, China
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, China
| | - Nana Su
- Department of Critical Care Medicine, The Central Hospital of Shaoyang City and Affiliated Shaoyang Hospital, Hengyang Medical College, University of South China, Shaoyang, China
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, China
| | - Zifan Zhang
- Department of Critical Care Medicine, The Central Hospital of Shaoyang City and Affiliated Shaoyang Hospital, Hengyang Medical College, University of South China, Shaoyang, China
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, China
| | - Jiaxin Chen
- Department of Critical Care Medicine, The Central Hospital of Shaoyang City and Affiliated Shaoyang Hospital, Hengyang Medical College, University of South China, Shaoyang, China
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, China
| | - Peng Liu
- Department of Critical Care Medicine, The Central Hospital of Shaoyang City and Affiliated Shaoyang Hospital, Hengyang Medical College, University of South China, Shaoyang, China
- Institute of Pathogenic Biology, Basic Medical School, Hengyang Medical School, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, China
| | - Peng Ling
- Department of Critical Care Medicine, The Central Hospital of Shaoyang City and Affiliated Shaoyang Hospital, Hengyang Medical College, University of South China, Shaoyang, China
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Sui DX, Ma HC, Wang CC, Shao HY, Xu SH, Fang NN. Diagnostic significance of HRCT imaging features in adult mycoplasma pneumonia: a retrospective study. Sci Rep 2024; 14:153. [PMID: 38168479 PMCID: PMC10761950 DOI: 10.1038/s41598-023-50702-3] [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: 09/14/2023] [Accepted: 12/23/2023] [Indexed: 01/05/2024] Open
Abstract
Mycoplasma pneumoniae pneumonia (MPP) often overlaps with the clinical manifestations and chest imaging manifestations of other types of community-acquired pneumonia (CAP). We retrospectively analyzed the clinical and imaging data of a group of patients with CAP, summarized their clinical and imaging characteristics, and discussed the diagnostic significance of their certain HRCT findings. The HRCT findings of CAP researched in our study included tree-in-bud sign (TIB), ground-glass opacity (GGO), tree fog sign (TIB + GGO), bronchial wall thickening, air-bronchogram, pleural effusion and cavity. The HRCT findings of all cases were analyzed. Among the 200 cases of MPP, 174 cases showed the TIB, 193 showed the GGO, 175 showed the tree fog sign, 181 lacked air-bronchogram. In case taking the tree fog sign and lack of air-bronchogram simultaneously as an index to distinguish MPP from OCAP, the sensitivity was 87.5%, the specificity was 97.5%, the accuracy was 92.5%. This study showed that that specific HRCT findings could be used to distinguish MPP from OCAP. The combined HRCT findings including the tree fog sign and lacked air-bronchogram simultaneously would contribute to a more accurate diagnosis of MPP.
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Affiliation(s)
- Dong-Xin Sui
- Department of Respiration, The Second Hospital of Shandong University, Jinan, China
| | - Han-Chen Ma
- Department of Respiration, The Second Hospital of Shandong University, Jinan, China
| | - Chao-Chao Wang
- Department of Respiration, The Second Hospital of Shandong University, Jinan, China
| | - Hong-Yan Shao
- Department of Respiration, The Second Hospital of Shandong University, Jinan, China
| | - Shao-Hua Xu
- Department of Respiration, The Second Hospital of Shandong University, Jinan, China
| | - Ning-Ning Fang
- Department of Anesthesiology, Qilu Hospital of Shandong University, No. 107, Wenhua Xi Road, Jinan, 250012, Shandong, China.
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Wu L, Zhang J, Zhang HM, Wang CY. Study on red blood cell distribution width in children with severe Mycoplasma pneumoniae pneumonia. Biomark Med 2024; 18:69-77. [PMID: 38440878 DOI: 10.2217/bmm-2023-0671] [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] [Indexed: 03/06/2024] Open
Abstract
Background: This study aimed to investigate the clinical value of the red blood cell distribution width (RDW) in severe Mycoplasma pneumoniae pneumonia (MPP). Methods: A total of 185 children with diagnosed severe MPP were included. The patients' case records and laboratory examination data were analyzed retrospectively. The children were grouped into quartiles based on RDW. Results: Univariate analysis revealed that RDW was significantly correlated with the Pediatric Risk of Mortality (PRISM) III score, Sepsis-Related Organ Failure Assessment score, incidence of invasive intubation and 30-day in-hospital mortality. After adjustment for the severity of illness, multivariate analysis revealed that the PRISM III score and RDW were factors independently associated with 30-day in-hospital mortality. Conclusion: This study revealed that RDW could be correlated with the long-term prognosis and severity of severe MPP.
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Affiliation(s)
- Lin Wu
- Department of Pediatrics, Fujian Children's Hospital (Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology & Pediatrics, Fujian Medical University, Fuzhou, Fujian Province, 350001, China
- Department of Pediatrics, Fujian Maternity and Children Hospital, College of Clinical Medicine for Obstetrics & Gynecology & Pediatrics, Fujian Medical University, Fuzhou, Fujian Province, 350001, China
| | - Jinyan Zhang
- College of Clinical Medicine for Obstetrics & Gynecology & Pediatrics, Fujian Medical University, Fuzhou, Fujian Province, 350001, China
| | - Hui-Min Zhang
- Department of Pediatrics, Fujian Children's Hospital (Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology & Pediatrics, Fujian Medical University, Fuzhou, Fujian Province, 350001, China
| | - Cheng-Yi Wang
- Department of Pediatrics, Fujian Children's Hospital (Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology & Pediatrics, Fujian Medical University, Fuzhou, Fujian Province, 350001, China
- Department of Pediatrics, Fujian Maternity and Children Hospital, College of Clinical Medicine for Obstetrics & Gynecology & Pediatrics, Fujian Medical University, Fuzhou, Fujian Province, 350001, China
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Koenen MH, de Groot RCA, de Steenhuijsen Piters WAA, Chu MLJN, Arp K, Hasrat R, de Bruijn ACJM, Estevão SC, van der Vries E, Langereis JD, Boes M, Bogaert D, van Rossum AMC, Unger WWJ, Verhagen LM. Mycoplasma pneumoniae carriage in children with recurrent respiratory tract infections is associated with a less diverse and altered microbiota. EBioMedicine 2023; 98:104868. [PMID: 37950996 PMCID: PMC10679896 DOI: 10.1016/j.ebiom.2023.104868] [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: 06/27/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 11/13/2023] Open
Abstract
BACKGROUND Mycoplasma pneumoniae is a common cause of community-acquired pneumonia in school-aged children and can be preceded by asymptomatic carriage. However, its role in recurrent respiratory tract infections is unclear. We studied the prevalence of M.pneumoniae carriage in children with recurrent respiratory infections and identified associated factors. METHODS We tested M.pneumoniae carriage by qPCR in children with recurrent infections and their healthy family members in a cross-sectional study. Serum and mucosal total and M.pneumoniae-specific antibody levels were measured by ELISA and nasopharyngeal microbiota composition was characterized by 16S-rRNA sequencing. FINDINGS Prevalence of M.pneumoniae carriage was higher in children with recurrent infections (68%) than their family members without infections (47% in siblings and 27% in parents). M.pneumoniae carriage among family members appeared to be associated with transmission within the household, likely originating from the affected child. In logistic regression corrected for age and multiple comparisons, IgA (OR 0.16 [0.06-0.37]) and total IgG deficiency (OR 0.15 [0.02-0.74]) were less prevalent in M.pneumoniae carriers (n = 78) compared to non-carriers (n = 36). In multivariable analysis, the nasopharyngeal microbiota of M.pneumoniae carriers had lower alpha diversity (OR 0.27 [0.09-0.67]) and a higher abundance of Haemophilus influenzae (OR 45.01 [2.74-1608.11]) compared to non-carriers. INTERPRETATION M.pneumoniae carriage is highly prevalent in children with recurrent infections and carriers have a less diverse microbiota with an overrepresentation of disease-associated microbiota members compared to non-carriers. Given the high prevalence of M.pneumoniae carriage and the strong association with H. influenzae, we recommend appropriate antibiotic coverage of M.pneumoniae and H. influenzae in case of suspected pneumonia in children with recurrent respiratory tract infections or their family members. FUNDING Wilhelmina Children's Hospital Research Fund, 'Christine Bader Stichting Irene KinderZiekenhuis', Sophia Scientific Research Foundation, ESPID Fellowship funded by Seqirus, Hypatia Fellowship funded by Radboudumc and The Netherlands Organisation for Health Research and Development (ZonMW VENI grant to LM Verhagen).
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Affiliation(s)
- Mischa H Koenen
- Center of Translational Immunology, UMC Utrecht, Utrecht, the Netherlands; Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, the Netherlands
| | - Ruben C A de Groot
- Laboratory of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, Erasmus MC University Medical Center Rotterdam - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Wouter A A de Steenhuijsen Piters
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Center for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom; Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, the Netherlands
| | - Mei Ling J N Chu
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, the Netherlands
| | - Kayleigh Arp
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, the Netherlands
| | - Raïza Hasrat
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands; Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, the Netherlands
| | - Ad C J M de Bruijn
- Laboratory of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, Erasmus MC University Medical Center Rotterdam - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Silvia C Estevão
- Laboratory of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, Erasmus MC University Medical Center Rotterdam - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Erhard van der Vries
- Department of Research & Development, GD Animal Health, Deventer, the Netherlands
| | - Jeroen D Langereis
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Marianne Boes
- Center of Translational Immunology, UMC Utrecht, Utrecht, the Netherlands; Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, the Netherlands
| | - Debby Bogaert
- Center for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom; Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, the Netherlands
| | - Annemarie M C van Rossum
- Division of Pediatric Infectious Diseases and Immunology, Department of Pediatrics, Erasmus MC University Medical Center Rotterdam - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Wendy W J Unger
- Laboratory of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, Erasmus MC University Medical Center Rotterdam - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Lilly M Verhagen
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, the Netherlands; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Pediatric Infectious Diseases and Immunology, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, the Netherlands.
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Song Z, Jia G, Luo G, Han C, Zhang B, Wang X. Global research trends of Mycoplasma pneumoniae pneumonia in children: a bibliometric analysis. Front Pediatr 2023; 11:1306234. [PMID: 38078315 PMCID: PMC10704248 DOI: 10.3389/fped.2023.1306234] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/13/2023] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND Mycoplasma pneumoniae pneumonia (MPP), attributable to Mycoplasma pneumoniae (MP), represents a predominant form of community-acquired pneumonia in pediatric populations, thereby posing a significant threat to pediatric health. Given the burgeoning volume of research literature associated with pediatric MPP in recent years, it becomes imperative to undertake a bibliometric analysis aimed at delineating the current research landscape and emerging trends, thereby furnishing a framework for subsequent investigations. METHODS A comprehensive literature search targeting pediatric MPP was conducted in the Web of Science Core Collection. After the removal of duplicate entries through Endnote software, the remaining articles were subject to scientometric analysis via Citespace software, VOSviewer software and R language, focusing on variables such as publication volume, contributing nations, institutions and authors, references and keywords. RESULTS A total of 1,729 articles pertinent to pediatric MPP were included in the analysis. China and the United States emerged as the nations with the highest publication output. Italian scholar Susanna Esposito and Japanese scholar Kazunobu Ouchi were the most influential authors in the domain of pediatric MPP. Highly-cited articles primarily focused on the epidemiological investigation of pediatric MPP, the clinical characteristics and treatment of macrolide-resistant MPP, and biomarkers for refractory Mycoplasma pneumoniae pneumonia (RMPP). From the corpus of 1,729 articles, 636 keywords were extracted and categorized into ten clusters: Cluster #0 centered on molecular-level typing of macrolide-resistant strains; Cluster #1 focused on lower respiratory tract co-infections; Clusters #2 and #6 emphasized other respiratory ailments caused by MP; Cluster #3 involved biomarkers and treatment of RMPP; Clusters #4 and #9 pertained to extrapulmonary complications of MPP, Clusters #5 and #7 addressed etiological diagnosis of MPP, and Cluster #8 explored pathogenic mechanisms. CONCLUSIONS The past few years have witnessed extensive attention directed towards pediatric MPP. Research in pediatric MPP principally revolves around diagnostic techniques for MP, macrolide resistance, complications of MPP, treatment and diagnosis of RMPP, and elucidation of pathogenic mechanisms. The present study provides pediatric clinicians and researchers with the research status and focal points in this field, thereby guiding the orientation of future research endeavors.
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Affiliation(s)
- Zhe Song
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Guangyuan Jia
- Department of Pediatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Guangzhi Luo
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chengen Han
- Department of Pediatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Baoqing Zhang
- Department of Pediatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiao Wang
- Department of Pediatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Hu HB, Shang XP, Wu JG, Cai YL. The Immunologic Profiles of Kawasaki Disease Triggered by Mycoplasma pneumoniae Infection. Fetal Pediatr Pathol 2023; 42:376-384. [PMID: 36484731 DOI: 10.1080/15513815.2022.2154133] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 12/13/2022]
Abstract
OBJECTIVE We compared the immunologic characteristics of mycoplasma pneumoniae-triggered Kawasaki disease (MP-KD) with Kawasaki disease (KD) not associated with mycoplasma pneumoniae (MP), with mycoplasma pneumoniae-triggered Henoch-Schönlein purpura (MP-HSP), and with healthy controls. METHODS Complement levels, cellular and humoral immunity were assessed in KD, in MP-KD, in MP-HSP, and in healthy children. RESULTS Of 622 children with KD, 74 had MP-KD. Complement C3 and CD4/CD8 ratio were significantly increased in MP-KD compared to KD. C3, C4, and the ratio of CD4/CD8 in the MP-KD group were higher than those in the MP-HSP group. IgA and CD56 were lower in the MP-KD group than the MP-HSP group. CONCLUSIONS Both C3 and polyclonal CD4+ T lymphocytes may be activated in the patients with MP-KD.
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Affiliation(s)
- Hong-Bo Hu
- Department of Laboratory, Maternal and Child Health Hospital of Hubei Province, Wuhan, China
| | - Xiao-Peng Shang
- Department of Infectious Disease, The First People's Hospital of Guangshui, Guangshui, China
| | - Jian-Gang Wu
- Department of Laboratory, The First People's Hospital of Guangshui, Guangshui, China
| | - Ya-Ling Cai
- Department of Gynecology and Obstetrics, The First People's Hospital of Guangshui, Guangshui, China
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8
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Zhu H, Cai Y, Slimmen LJM, de Bruijn ACJM, van Rossum AMC, Folkerts G, Braber S, Unger WWJ. Galacto-Oligosaccharides as an Anti-Infective and Anti-Microbial Agent for Macrolide-Resistant and -Sensitive Mycoplasma pneumoniae. Pathogens 2023; 12:pathogens12050659. [PMID: 37242328 DOI: 10.3390/pathogens12050659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
The worldwide increase in the incidence of antibiotic resistance of the atypical bacterium Mycoplasma pneumoniae (MP) challenges the treatment of MP infections, especially in children. Therefore, alternative strategies for the treatment of MP infections are warranted. Galacto- and fructo-oligosaccharides (GOS and FOS) are a specific group of complex carbohydrates that were recently shown to possess direct anti-pathogenic properties. In this study, we assessed whether GOS and FOS exert anti-microbial and anti-infective effects against MP and, especially, macrolide-resistant MP (MRMP) in vitro. The MIC values of GOS for MP and MRMP were 4%. In contrast, the MIC values of FOS for both MP and MRMP were 16%. A time-kill kinetic assay showed that FOS possess bacteriostatic properties, while for GOS, a bactericidal effect against MP and MRMP was observed after 24 h at a concentration of 4x MIC. In co-cultures with human alveolar A549 epithelial cells, GOS killed adherent MP and MRMP and also concentration-dependently inhibited their adherence to A549 cells. Further, GOS suppressed (MR)MP-induced IL-6 and IL-8 in A549 cells. None of the aforementioned parameters were affected when FOS were added to these co-cultures. In conclusion, the anti-infective and anti-microbial properties of GOS could provide an alternative treatment against MRMP and MP infections.
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Affiliation(s)
- Hongzhen Zhu
- Laboratory of Pediatrics, Department of Pediatrics, Erasmus MC, University Medical Centre Rotterdam, Sophia Children's Hospital, 3015 GD Rotterdam, The Netherlands
| | - Yang Cai
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands
- Department of Pharmacology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing 210009, China
| | - Lisa J M Slimmen
- Laboratory of Pediatrics, Department of Pediatrics, Erasmus MC, University Medical Centre Rotterdam, Sophia Children's Hospital, 3015 GD Rotterdam, The Netherlands
| | - Adrianus C J M de Bruijn
- Laboratory of Pediatrics, Department of Pediatrics, Erasmus MC, University Medical Centre Rotterdam, Sophia Children's Hospital, 3015 GD Rotterdam, The Netherlands
| | - Annemarie M C van Rossum
- Department of Pediatrics, Division of Pediatric Infectious Diseases and Immunology, Erasmus MC, University Medical Center Rotterdam, Sophia Children's Hospital, 3015 GD Rotterdam, The Netherlands
| | - Gert Folkerts
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Saskia Braber
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Wendy W J Unger
- Laboratory of Pediatrics, Department of Pediatrics, Erasmus MC, University Medical Centre Rotterdam, Sophia Children's Hospital, 3015 GD Rotterdam, The Netherlands
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