1
|
Hu L, Wang X, Cao D, Cheng Q, Li Q. Establishment and Performance Evaluation of Multiplex PCR-Dipstick DNA Chromatography for Mycoplasma pneumoniae and Chlamydia pneumoniae Rapid Detection. THE CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY = JOURNAL CANADIEN DES MALADIES INFECTIEUSES ET DE LA MICROBIOLOGIE MEDICALE 2023; 2023:6654504. [PMID: 37808892 PMCID: PMC10555492 DOI: 10.1155/2023/6654504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 09/09/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023]
Abstract
Methods Nasopharyngeal swab samples of 300 children with an acute respiratory tract infection were detected by a multiplex PCR-dipstick chromatography assay, and the results were compared with the DNA sequencing and serum IgM antibody assay. Results A multiplex PCR-dipstick DNA assay can specifically detect Mycoplasma pneumoniae and Chlamydia pneumoniae and shows a good specificity, with a minimum detection limit of 10 CFU/mL, respectively. Using DNA sequencing results as the gold standard, the sensitivity, specificity, positive predictive value, and negative predictive value of the multiplex PCR-dipstick DNA chromatography assay for the diagnosis of Mycoplasma pneumoniae were 96.61%, 100%, 100%, and 99.18% respectively, and those of Chlamydia pneumoniae were 95.24%, 100%, 100%, and 99.64% respectively. There was no statistical significance MP and CP diagnosis by the multiplex PCR-dipstick DNA assay and DNA sequencing (MP: P = 0.5; CP: P = 1.0), and the two assays had very high statistical consistency (MP: kappa = 0.979; CP: kappa = 0.974). The positive rate of the multiplex PCR-dipstick chromatography assay was significantly higher than that of the serum IgM antibody assay, with MP (17.7% vs. 13.3%), CP (5.7% vs. 3.3%), and mixed infection of MP and CP (1.3% vs. 0.67%). Conclusions A multiplex PCR-dipstick chromatography assay was successfully established for the joint detection of Mycoplasma pneumoniae and Chlamydia pneumoniae within 2 hours. It is simple, fast, sensitive, accurate, cost-effective with good diagnostic performance, which can be used for small laboratories and point-of-care diagnosis.
Collapse
Affiliation(s)
- Liuyang Hu
- Department of Laboratory Medicine, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning 530016, China
| | - Xiuri Wang
- Department of Gastroenterology, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning 530016, China
| | - Donglin Cao
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Qiuchen Cheng
- Department of Gastroenterology, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning 530016, China
| | - Qiong Li
- Guangzhou Biotron Technology Co., Ltd., Guangzhou 510336, China
| |
Collapse
|
2
|
Clinical Evaluation of a Novel Point-of-Care Assay To Detect Mycoplasma pneumoniae and Associated Macrolide-Resistant Mutations. J Clin Microbiol 2021; 59:e0324520. [PMID: 33910960 DOI: 10.1128/jcm.03245-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The recent increase in macrolide-resistant Mycoplasma pneumoniae in Asia has become a continuing problem. A point-of-care testing method that can quickly detect M. pneumoniae and macrolide-resistant mutations (MR mutations) is critical for proper antimicrobial use. Smart Gene (Mizuho Medy Co., Ltd., Tosu City, Saga, Japan) is a compact and inexpensive fully automatic gene analyzer that combines amplification with PCR and the quenching probe method to specify the gene and MR mutations simultaneously. We performed a clinical evaluation of this device and its reagents on pediatric patients with suspected M. pneumoniae respiratory infections and evaluated the impact of the assay on antimicrobial selection. Using real-time PCR as a comparison control, the sensitivity of Smart Gene was 97.8% (44/45), its specificity was 93.3% (98/105), and its overall concordance rate was 94.7% (142/150). The overall concordance rate of Smart Gene diagnosis of MR mutations in comparison with sequence analysis was 100% (48/48). The ratio of MR mutations was significantly higher at high-level medical institutions than at a primary medical clinic (P = 0.023), and changes in antibiotic therapy to drugs other than macrolides were significantly more common in patients with MR mutations (P = 0.00024). Smart Gene demonstrated excellent utility in the diagnosis of M. pneumoniae and the selection of appropriate antimicrobials for MR mutations at primary medical institutions, which play a central role in community-acquired pneumonia care. The use of this device may reduce referrals to high-level medical institutions for respiratory infections, thereby reducing the medical and economic burdens on patients.
Collapse
|
3
|
Rytter H, Jamet A, Coureuil M, Charbit A, Ramond E. Which Current and Novel Diagnostic Avenues for Bacterial Respiratory Diseases? Front Microbiol 2020; 11:616971. [PMID: 33362754 PMCID: PMC7758241 DOI: 10.3389/fmicb.2020.616971] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/24/2020] [Indexed: 12/24/2022] Open
Abstract
Bacterial acute pneumonia is responsible for an extremely large burden of death worldwide and diagnosis is paramount in the management of patients. While multidrug-resistant bacteria is one of the biggest health threats in the coming decades, clinicians urgently need access to novel diagnostic technologies. In this review, we will first present the already existing and largely used techniques that allow identifying pathogen-associated pneumonia. Then, we will discuss the latest and most promising technological advances that are based on connected technologies (artificial intelligence-based and Omics-based) or rapid tests, to improve the management of lung infections caused by pathogenic bacteria. We also aim to highlight the mutual benefits of fundamental and clinical studies for a better understanding of lung infections and their more efficient diagnostic management.
Collapse
Affiliation(s)
- Héloïse Rytter
- Université de Paris, Paris, France.,INSERM U1151, Institut Necker-Enfants Malades. Team 7, Pathogenesis of Systemic Infections, Paris, France.,CNRS UMR 8253, Paris, France
| | - Anne Jamet
- Université de Paris, Paris, France.,INSERM U1151, Institut Necker-Enfants Malades. Team 7, Pathogenesis of Systemic Infections, Paris, France.,CNRS UMR 8253, Paris, France.,Department of Clinical Microbiology, Necker Enfants-Malades Hospital, AP-HP, Centre Université de Paris, Paris, France
| | - Mathieu Coureuil
- Université de Paris, Paris, France.,INSERM U1151, Institut Necker-Enfants Malades. Team 7, Pathogenesis of Systemic Infections, Paris, France.,CNRS UMR 8253, Paris, France
| | - Alain Charbit
- Université de Paris, Paris, France.,INSERM U1151, Institut Necker-Enfants Malades. Team 7, Pathogenesis of Systemic Infections, Paris, France.,CNRS UMR 8253, Paris, France
| | - Elodie Ramond
- Université de Paris, Paris, France.,INSERM U1151, Institut Necker-Enfants Malades. Team 7, Pathogenesis of Systemic Infections, Paris, France.,CNRS UMR 8253, Paris, France
| |
Collapse
|
4
|
Li W, Fang YH, Shen HQ, Yang DH, Shu Q, Shang SQ. Evaluation of a real-time method of simultaneous amplification and testing in diagnosis of Mycoplasma pneumoniae infection in children with pneumonia. PLoS One 2017; 12:e0177842. [PMID: 28520818 PMCID: PMC5433777 DOI: 10.1371/journal.pone.0177842] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 05/04/2017] [Indexed: 02/07/2023] Open
Abstract
Mycoplasma pneumoniae (M. pneumoniae) infection can cause community acquired pneumonia in children. A real-time method of simultaneous amplification and testing of M. pneumoniae (SAT-MP) was developed to diagnose M. pneumoniae targeting a region of the ribosomal RNA. The SAT-MP assay can accurately identify M. pneumoniae with a detection range from 101 to 107 CFU/ml. In this study, the specimens from 315 children with pneumonia were collected and analyzed by SAT-MP in parallel with real-time PCR method and IgM ELISA assay. The positive rates of these specimens examined by SAT-MP assay, real-time PCR method and IgM ELISA assay were 16.51%, 15.56% and 12.70% respectively. While there was statistical significance (p = 0.04) between SAT-MP assay and IgM ELISA assay, no statistical significance (p = 0.25) was found between SAT-MP assay and real-time PCR method and these two methods had high consistency (kappa value = 0.97). These findings indicate that the newly developed SAT-MP assay is a rapid, sensitive and specific method for identifying M. pneumoniae with potential clinical application in the early diagnosis of M. pneumoniae infection.
Collapse
Affiliation(s)
- Wei Li
- Department of Clinical Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou, PR China
| | - You-hong Fang
- Department of Clinical Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou, PR China
| | - Hong-qiang Shen
- Department of Clinical Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou, PR China
| | - De-hua Yang
- Department of Clinical Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou, PR China
| | - Qiang Shu
- Department of Clinical Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou, PR China
| | - Shi-qiang Shang
- Department of Clinical Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou, PR China
- * E-mail:
| |
Collapse
|
5
|
Li W, Liu YJ, Zhao XL, Shang SQ, Wu L, Ye Q, Xu H. Th1/Th2 Cytokine Profile and Its Diagnostic Value in Mycoplasma pneumoniae Pneumonia. IRANIAN JOURNAL OF PEDIATRICS 2016; 26:e3807. [PMID: 26848377 PMCID: PMC4733293 DOI: 10.5812/ijp.3807] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Revised: 10/03/2015] [Accepted: 10/16/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND The levels of Th1/Th2 cytokine can alter in pathogenic infection in children with pneumonia. OBJECTIVES To evaluate Th1/Th2 cytokine profile and its diagnostic value in M. pneumoniae pneumonia in children. PATIENTS AND METHODS Children with M. pneumoniae mono-infection and 30 healthy children were tested with cytokines assay. We used real time PCR to detect M. pneumoniae in children with pneumonia. RESULTS M. pneumoniae test was positive in 2188 (16.62%) out of 13161 pneumonia children. Children aged 5 - 9 years had the highest rate and summer was a season with high rate of M. pneumoniae incidence in Zhejiang province. During the course of study, in 526 pneumonia children with M. pneumoniae mono-infection and 30 healthy children cytokines assay was performed. IL-2 level of M. pneumoniae pneumonia children was lower than that of healthy children (median levels, pg/mL: IL-2: 3.2 vs. 5.7, P = 0.00), while IL-4, IL-10 and IFN-γ were higher than in healthy children (median levels, pg/mL: IL-4: 3.2 vs. 1.5, P = 0.00; IL-10: 5.6 vs. 2.5, P = 0.001; IFN-γ: 20.4 vs. 4.8, P = 0.001). CONCLUSIONS IL-2 decreases and IL-4, IL-10 and IFN-γ increase in children with M. pneumoniae pneumonia, which has a promising prospect in diagnosis of this disease in clinical practice.
Collapse
Affiliation(s)
- Wei Li
- Department of Clinical Laboratory, Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Yu-jie Liu
- Department of Clinical Laboratory, Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Xiao-le Zhao
- Department of Clinical Laboratory, Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Shi-qiang Shang
- Department of Clinical Laboratory, Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Lang Wu
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Qing Ye
- Department of Clinical Laboratory, Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| | - Hui Xu
- Department of Clinical Laboratory, Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou, PR China
| |
Collapse
|
6
|
Li W, Liu Y, Zhao Y, Tao R, Li Y, Shang S. Rapid diagnosis of Mycoplasma pneumoniae in children with pneumonia by an immuno-chromatographic antigen assay. Sci Rep 2015; 5:15539. [PMID: 26486047 PMCID: PMC4614389 DOI: 10.1038/srep15539] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 09/28/2015] [Indexed: 11/30/2022] Open
Abstract
Mycoplasma pneumoniae is a particularly important pathogen that causes community acquired pneumonia in children. In this study, a rapid test was developed to diagnose M. pneumoniae by using a colloidal gold-based immuno-chromatographic assay which targets a region of the P1 gene. 302 specimens were analyzed by the colloidal gold assay in parallel with real-time PCR. Interestingly, the colloidal gold assay allowed M. pneumoniae identification, with a detection limit of 1 × 10(3) copies/ml. 76 samples were found to be positive in both real-time PCR and the colloidal gold assay; two specimens positive in real-time PCR were negative in the rapid colloidal gold assay. The specificity and sensitivity of the colloidal gold assay were 100% and 97.4%, respectively. These findings indicate that the newly developed immuno-chromatographic antigen assay is a rapid, sensitive and specific method for identifying M. pneumoniae, with potential clinical application in the early diagnosis of Mycoplasma pneumoniae infection.
Collapse
Affiliation(s)
- Wei Li
- Department of Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Yujie Liu
- Department of Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Yun Zhao
- Department of Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Ran Tao
- Department of Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Yonggang Li
- Hangzhou Genesis Biodetection & Biocontrol Ltd, Hangzhou 310018, P.R. China
| | - Shiqiang Shang
- Department of Laboratory, Children’s Hospital of Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| |
Collapse
|