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Liu D, Huang F, Li Y, Mao L, He W, Wu S, Xia H, He P, Zheng H, Zhou Y, Zhao B, Ou X, Song Y, Song Z, Mei L, Liu L, Zhang G, Wei Q, Zhao Y. Transmission characteristics in Tuberculosis by WGS: nationwide cross-sectional surveillance in China. Emerg Microbes Infect 2024; 13:2348505. [PMID: 38686553 PMCID: PMC11097701 DOI: 10.1080/22221751.2024.2348505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 04/23/2024] [Indexed: 05/02/2024]
Abstract
China, with the third largest share of global tuberculosis cases, faces a substantial challenge in its healthcare system as a result of the high burden of multidrug-resistant and rifampicin-resistant tuberculosis (MDR/RR-TB). This study employs a genomic epidemiological approach to assess recent tuberculosis transmissions between individuals, identifying potential risk factors and discerning the role of transmitted resistant isolates in the emergence of drug-resistant tuberculosis in China. We conducted a population-based retrospective study on 5052 Mycobacterium tuberculosis (MTB) isolates from 70 surveillance sites using whole genome sequencing (WGS). Minimum spanning tree analysis identified resistance mutations, while epidemiological data analysis pinpointed transmission risk factors. Of the 5052 isolates, 23% (1160) formed 452 genomic clusters, with 85.6% (387) of the transmissions occurring within the same counties. Individuals with younger age, larger family size, new cases, smear positive, and MDR/RR were at higher odds for recent transmission, while higher education (university and above) and occupation as a non-physical workers emerged as protective factors. At least 61.4% (251/409) of MDR/RR-TB were likely a result of recent transmission of MDR/RR isolates, with previous treatment (crude OR = 2.77), smear-positive (cOR = 2.07) and larger family population (cOR = 1.13) established as risk factors. Our findings highlight that local transmission remains the predominant form of TB transmission in China. Correspondingly, drug-resistant tuberculosis is primarily driven by the transmission of resistant tuberculosis isolates. Targeted interventions for high-risk populations to interrupt transmission within the country will likely provide an opportunity to reduce the prevalence of both tuberculosis and drug-resistant tuberculosis.
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Affiliation(s)
- Dongxin Liu
- National Pathogen Resource Center, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Fei Huang
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yaru Li
- Department of Nutrition, Beijing Friendship Hospital, Capital Medical University
| | - Lingfeng Mao
- Joint Research Center for Molecular Diagnosis of Severe Infection in Children, Binjiang Institute of Zhejiang University, Hangzhou, People’s Republic of China
| | - Wencong He
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Sihao Wu
- Joint Research Center for Molecular Diagnosis of Severe Infection in Children, Binjiang Institute of Zhejiang University, Hangzhou, People’s Republic of China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Ping He
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Huiwen Zheng
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center for Children’s Health, Beijing, People’s Republic of China
| | - Yang Zhou
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Bing Zhao
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yuanyuan Song
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Zexuan Song
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Li Mei
- National Pathogen Resource Center, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Li Liu
- National Pathogen Resource Center, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Guoliang Zhang
- National Clinical Research Center for Infectious Diseases, Guangdong Clinical Research Center for Tuberculosis, Shenzhen Third People’s Hospital, Shenzhen, People’s Republic of China
| | - Qiang Wei
- National Pathogen Resource Center, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
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Zhao B, Zheng H, Timm J, Song Z, Pei S, Xing R, Guo Y, Ma L, Li F, Li Q, Li Y, Huang L, Teng C, Wang N, Gupta A, Juneja S, Huang F, Zhao Y, Ou X. Prevalence and genetic basis of Mycobacterium tuberculosis resistance to pretomanid in China. Ann Clin Microbiol Antimicrob 2024; 23:40. [PMID: 38702782 PMCID: PMC11069242 DOI: 10.1186/s12941-024-00697-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 04/20/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Pretomanid is a key component of new regimens for the treatment of drug-resistant tuberculosis (TB) which are being rolled out globally. However, there is limited information on the prevalence of pre-existing resistance to the drug. METHODS To investigate pretomanid resistance rates in China and its underlying genetic basis, as well as to generate additional minimum inhibitory concentration (MIC) data for epidemiological cutoff (ECOFF)/breakpoint setting, we performed MIC determinations in the Mycobacterial Growth Indicator Tube™ (MGIT) system, followed by WGS analysis, on 475 Mycobacterium tuberculosis (MTB) isolated from Chinese TB patients between 2013 and 2020. RESULTS We observed a pretomanid MIC distribution with a 99% ECOFF equal to 0.5 mg/L. Of the 15 isolates with MIC values > 0.5 mg/L, one (MIC = 1 mg/L) was identified as MTB lineage 1 (L1), a genotype previously reported to be intrinsically less susceptible to pretomanid, two were borderline resistant (MIC = 2-4 mg/L) and the remaining 12 isolates were highly resistant (MIC ≥ 16 mg/L) to the drug. Five resistant isolates did not harbor mutations in the known pretomanid resistant genes. CONCLUSIONS Our results further support a breakpoint of 0.5 mg/L for a non-L1 MTB population, which is characteristic of China. Further, our data point to an unexpected high (14/475, 3%) pre-existing pretomanid resistance rate in the country, as well as to the existence of yet-to-be-discovered pretomanid resistance genes.
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Affiliation(s)
- Bing Zhao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Huiwen Zheng
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Children's Hospital, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Beijing Pediatric Research Institute, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | | | - Zexuan Song
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Shaojun Pei
- School of Public Health, Peking University, Beijing, 100191, China
| | - Ruida Xing
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Yajie Guo
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Children's Hospital, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Beijing Pediatric Research Institute, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Ling Ma
- Institute of Tuberculosis Prevention and Control, Gansu Provincial Center for Disease Control and Prevention, Lanzhou, 730020, China
| | - Feina Li
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Children's Hospital, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Beijing Pediatric Research Institute, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Qing Li
- Institute of Tuberculosis Prevention and Control, Gansu Provincial Center for Disease Control and Prevention, Lanzhou, 730020, China
| | - Yan Li
- Department of Tuberculosis Control, Chengde Center of Disease Prevention and Control, Chengde, 067000, China
| | - Lin Huang
- Department of Tuberculosis Control, Chengde Center of Disease Prevention and Control, Chengde, 067000, China
| | - Chong Teng
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Ni Wang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | | | | | - Fei Huang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
| | - Yanlin Zhao
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
| | - Xichao Ou
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
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He P, Zhao B, He W, Song Z, Pei S, Liu D, Xia H, Wang S, Ou X, Zheng Y, Zhou Y, Song Y, Wang Y, Cao X, Xing R, Zhao Y. Impact of MSMEG5257 Deletion on Mycolicibacterium smegmatis Growth. Microorganisms 2024; 12:770. [PMID: 38674714 PMCID: PMC11052289 DOI: 10.3390/microorganisms12040770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Mycobacterial membrane proteins play a pivotal role in the bacterial invasion of host cells; however, the precise mechanisms underlying certain membrane proteins remain elusive. Mycolicibacterium smegmatis (Ms) msmeg5257 is a hemolysin III family protein that is homologous to Mycobacterium tuberculosis (Mtb) Rv1085c, but it has an unclear function in growth. To address this issue, we utilized the CRISPR/Cas9 gene editor to construct Δmsmeg5257 strains and combined RNA transcription and LC-MS/MS protein profiling to determine the functional role of msmeg5257 in Ms growth. The correlative analysis showed that the deletion of msmeg5257 inhibits ABC transporters in the cytomembrane and inhibits the biosynthesis of amino acids in the cell wall. Corresponding to these results, we confirmed that MSMEG5257 localizes in the cytomembrane via subcellular fractionation and also plays a role in facilitating the transport of iron ions in environments with low iron levels. Our data provide insights that msmeg5257 plays a role in maintaining Ms metabolic homeostasis, and the deletion of msmeg5257 significantly impacts the growth rate of Ms. Furthermore, msmeg5257, a promising drug target, offers a direction for the development of novel therapeutic strategies against mycobacterial diseases.
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Affiliation(s)
- Ping He
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Bing Zhao
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Wencong He
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Zexuan Song
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Shaojun Pei
- School of Public Health, Peking University, Haidian District, Beijing 100871, China;
| | - Dongxin Liu
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Hui Xia
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Shengfen Wang
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Xichao Ou
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Yang Zheng
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Yang Zhou
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Yuanyuan Song
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Yiting Wang
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Xiaolong Cao
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Ruida Xing
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
| | - Yanlin Zhao
- Chinese Center for Disease Control and Prevention, Changping District, Beijing 102206, China; (P.H.); (B.Z.); (W.H.); (Z.S.); (D.L.); (H.X.); (S.W.); (X.O.); (Y.Z.); (Y.Z.); (Y.S.); (Y.W.); (X.C.); (R.X.)
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Xia H, Song Y, Zheng Y, Zhou Y, Ou X, Wang S, Zhao B, Zhao Y. Proficiency testing for drug susceptibility testing of Mycobacterium tuberculosis complex using commercial broth microdilution plate in China in 2021. J Glob Antimicrob Resist 2024; 36:230-236. [PMID: 38072239 DOI: 10.1016/j.jgar.2023.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 07/31/2023] [Accepted: 11/28/2023] [Indexed: 02/02/2024] Open
Abstract
OBJECTIVES The characteristic and performance of Broth microdilution (BMD) plates for drug susceptibility of Mycobacterium tuberculosis have not been systematically evaluated in China. This study was designed to review the key information and assess the performance of BMD plates by analysis of proficiency testing results. METHODS We retrospectively analysed the proficiency testing results of phenotypic drug susceptibility testing (PT-DST) of 45 laboratories using BMD plates in China in 2021. Critical information, such as drug layout, concentration range of each drug, plate storage conditions and duration, operating procedures, and interpretation criteria for binary results were compared. The performance was also analysed. RESULTS Eight types of BMD plates produced by four manufactures were reported. The drug layout, number of drugs on plates, and concentration range varied a lot between different plates. The total sensitivity and specificity of BMD plates for drug susceptibility of Mycobacterium tuberculosis to ten drugs (isoniazid (INH), rifampin (RIF), kanamycin (KAM), amikacin (AM), levofloxacin (LFX), moxifloxacin (MFX), bedaquiline (BDQ), linezolid (LZD), clofazimine (CFZ), and delamanid (DLM)) were 93.9% (95% CI 92.-94.9) and 99.1% (95% CI 98.8-99.3), respectively. The lowest sensitivity was 84.8% (95% CI 80.3-88.4) for LFX and 86.4% (95% CI 82.5-89.6) for MFX, or 87.5% (95% CI 84.2-90.2) for Y1 plate and 87.9% (95% CI 83.5-91.1) for T plate. The lowest specificity was 94.4% (95% CI 91.4-96.4) for DLM, or 97.9% (95% CI 96.8-98.7) for B3 plate. CONCLUSION Commercial BMD plates in China showed varied drug layouts and operational procedures, indicating the urgency of standardization. The lower performance for some drugs showed the low quality of the plates utilized or lack of proficiency of lab staffs in operating and interpreting results.
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Affiliation(s)
- Hui Xia
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yuanyuan Song
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yang Zheng
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yang Zhou
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shengfen Wang
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Bing Zhao
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
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Ou X, Song Z, Zhao B, Pei S, Teng C, Zheng H, He W, Xing R, Wang Y, Wang S, Xia H, Zhou Y, He P, Zhao Y. Diagnostic efficacy of an optimized nucleotide MALDI-TOF-MS assay for anti-tuberculosis drug resistance detection. Eur J Clin Microbiol Infect Dis 2024; 43:105-114. [PMID: 37980301 DOI: 10.1007/s10096-023-04700-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/01/2023] [Indexed: 11/20/2023]
Abstract
PURPOSE We aimed at evaluating the diagnostic efficacy of a nucleotide matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) assay to detect drug resistance of Mycobacterium tuberculosis. METHODS Overall, 263 M. tuberculosis clinical isolates were selected to evaluate the performance of nucleic MALDI-TOF-MS for rifampin (RIF), isoniazid (INH), ethambutol (EMB), moxifloxacin (MXF), streptomycin (SM), and pyrazinamide (PZA) resistance detection. The results for RIF, INH, EMB, and MXF were compared with phenotypic microbroth dilution drug susceptibility testing (DST) and whole-genome sequencing (WGS), and the results for SM and PZA were compared with those obtained by WGS. RESULTS Using DST as the gold standard, the sensitivity, specificity, and kappa values of the MALDI-TOF-MS assay for the detection of resistance were 98.2%, 98.7%, and 0.97 for RIF; 92.8%, 99%, and 0.90 for INH; 82.4%, 98.0%, and 0.82 for EMB; and 92.6%, 99.5%, and 0.94 for MXF, respectively. Compared with WGS as the reference standard, the sensitivity, specificity, and kappa values of the MALDI-TOF-MS assay for the detection of resistance were 97.4%, 100.0%, and 0.98 for RIF; 98.7%, 92.9%, and 0.92 for INH; 96.3%, 100.0%, and 0.98 for EMB; 98.1%, 100.0%, and 0.99 for MXF; 98.0%, 100.0%, and 0.98 for SM; and 50.0%, 100.0%, and 0.65 for PZA. CONCLUSION The nucleotide MALDI-TOF-MS assay yielded highly consistent results compared to DST and WGS, suggesting that it is a promising tool for the rapid detection of sensitivity to RIF, INH, EMB, and MXF.
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Affiliation(s)
- Xichao Ou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Zexuan Song
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Bing Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Shaojun Pei
- School of Public Health, Peking University, Beijing, 100191, China
| | - Chong Teng
- Department of Tuberculosis, Beijing Dongcheng District Center for Disease Control, Beijing, 100050, China
| | - Huiwen Zheng
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China
| | - Wencong He
- Clinical Laboratory, Beijing Tong Ren Hospital, Capital Medical University, Beijing, 100730, China
| | - Ruida Xing
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Yiting Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Shengfen Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Yang Zhou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Ping He
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, No. 155 Chang Bai Road, Changping District, Beijing, 102206, People's Republic of China.
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Song Z, He W, Pei S, Zhao B, Cao X, Wang Y, He P, Liu D, Ma A, Ou X, Xia H, Wang S, Liu C, Zhao Y. Association of lineage 4.2.2 of Mycobacterium tuberculosis with the 63-bp deletion variant of the mpt64 gene. Microbiol Spectr 2023; 11:e0184223. [PMID: 37947405 PMCID: PMC10714870 DOI: 10.1128/spectrum.01842-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 10/03/2023] [Indexed: 11/12/2023] Open
Abstract
IMPORTANCE To date, rapid diagnostic methods based on the MPT64 antigen assay are increasingly utilized to differentiate between non-tuberculous mycobacteria and TB disease in clinical settings. Furthermore, numerous novel techniques based on the MPT64 release assay are continuously being developed and applied for the identification of both pulmonary and extrapulmonary TB. However, the diagnostic accuracy of the MPT64 antigen assay is influenced by the presence of 63 bp deletion variants within the mpt64 gene. To our knowledge, this is the first report on the association between the 63 bp deletion variant in mpt64 and Mycobacterium tuberculosis L4.2.2 globally, which highlights the need for the cautious utilization of MPT64-based testing in regions where L4.2.2 isolates are prevalent, such as China and Vietnam, and MPT64 negative results should be confirmed with another assay. In addition, further studies on vaccine development and immunology based on MPT64 should consider these isolates with 63 bp deletion variant.
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Affiliation(s)
- Zexuan Song
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wencong He
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shaojun Pei
- School of Public Health, Peking University, Beijing, China
| | - Bing Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaolong Cao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yiting Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ping He
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Dongxin Liu
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Aijing Ma
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shengfen Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chunfa Liu
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
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Ou X, He X, Wang Y, Hu C. Induction Chemotherapy and Toripalimab for Larynx Preservation in Resectable Locally Advanced Laryngeal/Hypopharyngeal Carcinoma: Preliminary Results of INSIGHT Study. Int J Radiat Oncol Biol Phys 2023; 117:S99. [PMID: 37784619 DOI: 10.1016/j.ijrobp.2023.06.2296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Previous studies have demonstrated excellent pathological response of induction PD-1 inhibitor with chemotherapy for locally advanced head and neck cancer. To our knowledge, there is scarce evidence on induction chemotherapy (ICT) and PD-1 inhibitor in organ preservation for patients (pts) with laryngeal/hypopharyngeal carcinoma. Hence, the aim of this study is to evaluate the efficacy and toxicities of ICT and PD-1inhibitor (Toripalimab) followed by radiotherapy or surgery, for pts with resectable locally advanced laryngeal/hypopharyngeal carcinoma. MATERIALS/METHODS This isa single-arm phase II study. Pts with histopathologic confirmed, resectable locally advanced laryngeal/hypopharyngeal squamous cell carcinoma and ECOG PS 0-1 were eligible. Three cycles of ICT (paclitaxel 175 mg/m d1, cisplatin 25 mg/m d1-3) combined with PD-1 inhibitor (Toripalimab 240 mg d0) were given. Response assessment (RECIST 1.1) was performed post-ICT. Patients with complete response (CR)/partial response (PR) of primary tumor received concurrent chemoradiation, followed by maintenance therapy of Toripalimab for eight cycles. Otherwise, patients were referred to surgery, followed by adjuvant radiation (RT)/chemoradiation (CRT), and then maintenance therapy of Toripalimab. The primary endpoint is larynx-preservation (LP) rate at 3 months post-RT. Forty-two patients were planned. Based on a two-stage Fleming design (one-sided α:10%, power: 80%), if at least 22 patients attained LP of the first 27 patients in stage I or at least thirty-two pts attained LP of the 42 patients at the end of stage II, the null hypothesis would be rejected. The cohort would enroll 15 more pts in stage II if 19-21 pts in stage I observed LP, and the study would be terminated if the number of pts with LP were less than 18 in stage I. RESULTS A total of 27 pts were enrolled. By the cut-off date Feb 8, 2023, all reached at least 3 months of follow-up post-RT. Median age was 63 (53-74) years with 92.6% male. Hypopharyngeal cancer accounted for 66.7%. There were 74.1% who were T3 to T4, and 77.7% were N2 to N3. Six cases had primary invasion of esophagus and five pts underwent pretreatment tracheostomy. ORR of ICT was 85.2%. Afterward, 21 pts were treated with concurrent CRT, while 6 pts received surgery of primary tumor. At 3 months post-RT, 23 pts attained organ preservation and the LP rate was 85.2%. With a median follow-up of 13.5 months, 1-year OS rate, PFS rate and LP survival rate was 83.1%, 79.5% and 79.4%, respectively. During ICT, 22.2% of pts experienced grade 3-4 treatment-related AEs (TRAEs). The most common grade 3-4 TRAEs were nausea and neutrophil count decreased. CONCLUSION The primary endpoint LP rate was met. In this cohort of extensive locally advanced laryngeal/hypopharyngeal carcinoma, ICT and Toripalimab followed by radiotherapy or surgery resulted in satisfactory short-term LP rate and encouraging survival.
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Affiliation(s)
- X Ou
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - X He
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Y Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - C Hu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
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Song Z, Liu C, He W, Pei S, Liu D, Cao X, Wang Y, He P, Zhao B, Ou X, Xia H, Wang S, Zhao Y. Insight into the drug-resistant characteristics and genetic diversity of multidrug-resistant Mycobacterium tuberculosis in China. Microbiol Spectr 2023; 11:e0132423. [PMID: 37732780 PMCID: PMC10581218 DOI: 10.1128/spectrum.01324-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 07/16/2023] [Indexed: 09/22/2023] Open
Abstract
Multidrug-resistant tuberculosis (MDR-TB) has a severe impact on public health. To investigate the drug-resistant profile, compensatory mutations and genetic variations among MDR-TB isolates, a total of 546 MDR-TB isolates from China underwent drug-susceptibility testing and whole genome sequencing for further analysis. The results showed that our isolates have a high rate of fluoroquinolone resistance (45.60%, 249/546) and a low proportion of conferring resistance to bedaquiline, clofazimine, linezolid, and delamanid. The majority of MDR-TB isolates (77.66%, 424/546) belong to Lineage 2.2.1, followed by Lineage 4.5 (6.41%, 35/546), and the Lineage 2 isolates have a strong association with pre-XDR/XDR-TB (P < 0.05) in our study. Epidemic success analysis using time-scaled haplotypic density (THD) showed that clustered isolates outperformed non-clustered isolates. Compensatory mutations happened in rpoA, rpoC, and non-RRDR of rpoB genes, which were found more frequently in clusters and were associated with the increase of THD index, suggesting that increased bacterial fitness was associated with MDR-TB transmission. In addition, the variants in resistance associated genes in MDR isolates are mainly focused on single nucleotide polymorphism mutations, and only a few genes have indel variants, such as katG, ethA. We also found some genes underwent indel variation correlated with the lineage and sub-lineage of isolates, suggesting the selective evolution of different lineage isolates. Thus, this analysis of the characterization and genetic diversity of MDR isolates would be helpful in developing effective strategies for treatment regimens and tailoring public interventions. IMPORTANCE Multidrug-resistant tuberculosis (MDR-TB) is a serious obstacle to tuberculosis prevention and control in China. This study provides insight into the drug-resistant characteristics of MDR combined with phenotypic drug-susceptibility testing and whole genome sequencing. The compensatory mutations and epidemic success analysis were analyzed by time-scaled haplotypic density (THD) method, suggesting clustered isolates and compensatory mutations are associated with MDR-TB transmission. In addition, the insertion and deletion variants happened in some genes, which are associated with the lineage and sub-lineage of isolates, such as the mpt64 gene. This study offered a valuable reference and increased understanding of MDR-TB in China, which could be crucial for achieving the objective of precision medicine in the prevention and treatment of MDR-TB.
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Affiliation(s)
- Zexuan Song
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chunfa Liu
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wencong He
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shaojun Pei
- School of Public Health, Peking University, Beijing, China
| | - Dongxin Liu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaolong Cao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yiting Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ping He
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Bing Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shengfen Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
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Dudley JA, Nagaraj UD, Merhar S, Mangano FT, Kline-Fath BM, Ou X, Acheson A, Yuan W. DTI of Opioid-Exposed Fetuses Using ComBat Harmonization: A Bi-Institutional Study. AJNR Am J Neuroradiol 2023; 44:1084-1089. [PMID: 37562830 PMCID: PMC10494946 DOI: 10.3174/ajnr.a7951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/25/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND AND PURPOSE The underlying mechanisms leading to altered cognitive, behavioral, and vision outcomes in children with prenatal opioid exposure are yet to be fully understood. Some studies suggest WM alterations in infants and children with prenatal opioid exposure; however, the time course of WM changes is unknown. We aimed to evaluate differences in diffusion tensor imaging MRI parameters in the brain between opioid exposed fetuses and normal controls. MATERIALS AND METHODS This is a pilot, prospective cohort study in which subjects in the third trimester of pregnancy underwent fetal DTI of the brain with 20 noncolinear diffusion directions and a b-value of 500 s/mm2 at 2.5-mm isotropic resolution. RESULTS The study included a total of 26 fetuses, 11 opioid-exposed (mean gestational age, 32.61 [SD, 2.35] weeks) and 15 unexposed controls (mean gestational age, 31.77 [SD, 1.68] weeks). After we adjusted for gestational age, fractional anisotropy values were significantly higher in opioid-exposed fetuses relative to controls in 8 WM tracts: the bilateral lemniscus (left: P = .017; right: P = .020), middle cerebellar peduncle (P = .027), left inferior cerebellar peduncle (P = .026), right sagittal stratum (P = .040), right fornix stria terminalis (P = .022), right inferior fronto-occipital fasciculus (P = .011), and the right uncinate fasciculus (P = .033). Significant alteration was also identified in other DTI indices involving a series of brain regions. CONCLUSIONS Our data demonstrate initial evidence of cerebral WM microstructural differences between opioid-exposed fetuses and unexposed controls. Further studies in larger patient populations will be needed to fully understand these findings.
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Affiliation(s)
- J A Dudley
- From the Department of Radiology and Medical Imaging (J.A.D., U.D.N., B.M.K.-F., W.Y.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
| | - U D Nagaraj
- From the Department of Radiology and Medical Imaging (J.A.D., U.D.N., B.M.K.-F., W.Y.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
| | - S Merhar
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
- Perinatal Institute, Division of Neonatology (S.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - F T Mangano
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
- Department of Neurosurgery (F.T.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - B M Kline-Fath
- From the Department of Radiology and Medical Imaging (J.A.D., U.D.N., B.M.K.-F., W.Y.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
| | - X Ou
- Departments of Radiology (X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Departments of Pediatrics (X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - A Acheson
- Department of Psychiatry (A.A.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - W Yuan
- From the Department of Radiology and Medical Imaging (J.A.D., U.D.N., B.M.K.-F., W.Y.), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- University of Cincinnati College of Medicine (J.A.D., U.D.N., S.M., F.T.M., B.M.K.-F., W.Y.), Cincinnati, Ohio
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Zhang R, Ou X, Sun X, Fan G, Zhao B, Tian F, Li F, Shen X, Zhao Y, Ma X. Multiplex LNA probe-based RAP assay for rapid and highly sensitive detection of rifampicin-resistant Mycobacterium tuberculosis. Front Microbiol 2023; 14:1141424. [PMID: 37180280 PMCID: PMC10172479 DOI: 10.3389/fmicb.2023.1141424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 04/11/2023] [Indexed: 05/16/2023] Open
Abstract
Objectives The World Health Organization (WHO) Global tuberculosis Report 2021 stated that rifampicin-resistant tuberculosis (RR-TB) remains a major public health threat. However, the in-practice diagnostic techniques for RR-TB have a variety of limitations including longer time, lack of sensitivity, and undetectable low proportion of heterogeneous drug resistance. Methods Here we developed a multiplex LNA probe-based RAP method (MLP-RAP) for more sensitive detection of multiple point mutations of the RR-TB and its heteroresistance. A total of 126 clinical isolates and 78 sputum samples collected from the National Tuberculosis Reference Laboratory, China CDC, were tested by MLP-RAP assay. In parallel, qPCR and Sanger sequencing of nested PCR product assay were also performed for comparison. Results The sensitivity of the MLP-RAP assay could reach 5 copies/μl using recombinant plasmids, which is 20 times more sensitive than qPCR (100 copies/μl). In addition, the detection ability of rifampicin heteroresistance was 5%. The MLP-RAP assay had low requirements (boiling method) for nucleic acid extraction and the reaction could be completed within 1 h when placed in a fluorescent qPCR instrument. The result of the clinical evaluation showed that the MLP-RAP method could cover codons 516, 526, 531, and 533 with good specificity. 41 out of 78 boiled sputum samples were detected positive by MLP-RAP assay, which was further confirmed by Sanger sequencing of nested PCR product assay, on the contrary, qPCR was able to detect 32 samples only. Compared with Sanger sequencing of nested PCR product assay, both the specificity and sensitivity of the MLP-RAP assay were 100%. Conclusion MLP-RAP assay can detect RR-TB infection with high sensitivity and specificity, indicating that this assay has the prospect of being applied for rapid and sensitive RR-TB detection in general laboratories where fluorescent qPCR instrument is available.
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Affiliation(s)
- Ruiqing Zhang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiuli Sun
- Clinical Laboratory, North China University of Science and Technology, Tangshan, China
| | - Guohao Fan
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Bing Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Fengyu Tian
- Hebei Key Laboratory of Molecular Medicine, Hebei Medical University, Shijiazhuang, China
| | - Fengyu Li
- Hebei Key Laboratory of Molecular Medicine, Hebei Medical University, Shijiazhuang, China
| | - Xinxin Shen
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xuejun Ma
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China
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Zheng H, Wang Y, He W, Li F, Xia H, Xiao J, Ou X, Wang S, Shen C, Zhao Y. Letter to the Editor: In Vitro Activity of Oxazolidinone Against Nontuberculous Mycobacteria in China. Microb Drug Resist 2023; 29:112-114. [PMID: 36625859 DOI: 10.1089/mdr.2022.0216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Huiwen Zheng
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing, China
| | - Yiting Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
- Institute for Immunization and Prevention, Beijing Center for Disease Control and Prevention, Beijing Academy for Preventive Medicine, Beijing Institute of Tuberculosis Control, Beijing, China
| | - Wencong He
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Feina Li
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing, China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jing Xiao
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing, China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shengfen Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chen Shen
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing, China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
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He W, Tan Y, Song Z, Liu B, Wang Y, He P, Xia H, Huang F, Liu C, Zheng H, Pei S, Liu D, Ma A, Cao X, Zhao B, Ou X, Wang S, Zhao Y. Endogenous relapse and exogenous reinfection in recurrent pulmonary tuberculosis: A retrospective study revealed by whole genome sequencing. Front Microbiol 2023; 14:1115295. [PMID: 36876077 PMCID: PMC9981662 DOI: 10.3389/fmicb.2023.1115295] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/02/2023] [Indexed: 02/19/2023] Open
Abstract
Background Tuberculosis may reoccur due to reinfection or relapse after initially successful treatment. Distinguishing the cause of TB recurrence is crucial to guide TB control and treatment. This study aimed to investigate the source of TB recurrence and risk factors related to relapse in Hunan province, a high TB burden region in southern China. Methods A population-based retrospective study was conducted on all culture-positive TB cases in Hunan province, China from 2013 to 2020. Phenotypic drug susceptibility testing and whole-genome sequencing were used to detect drug resistance and distinguish between relapse and reinfection. Pearson chi-square test and Fisher exact test were applied to compare differences in categorical variables between relapse and reinfection. The Kaplan-Meier curve was generated in R studio (4.0.4) to describe and compare the time to recurrence between different groups. p < 0.05 was considered statistically significant. Results Of 36 recurrent events, 27 (75.0%, 27/36) paired isolates were caused by relapse, and reinfection accounted for 25.0% (9/36) of recurrent cases. No significant difference in characteristics was observed between relapse and reinfection (all p > 0.05). In addition, TB relapse occurs earlier in patients of Tu ethnicity compared to patients of Han ethnicity (p < 0.0001), whereas no significant differences in the time interval to relapse were noted in other groups. Moreover, 83.3% (30/36) of TB recurrence occurred within 3 years. Overall, these recurrent TB isolates were predominantly pan-susceptible strains (71.0%, 49/69), followed by DR-TB (17.4%, 12/69) and MDR-TB (11.6%, 8/69), with mutations mainly in codon 450 of the rpoB gene and codon 315 of the katG gene. 11.1% (3/27) of relapse cases had acquired new resistance during treatment, with fluoroquinolone resistance occurring most frequently (7.4%, 2/27), both with mutations in codon 94 of gyrA. Conclusion Endogenous relapse is the main mechanism leading to TB recurrences in Hunan province. Given that TB recurrences can occur more than 4 years after treatment completion, it is necessary to extend the post-treatment follow-up period to achieve better management of TB patients. Moreover, the relatively high frequency of fluoroquinolone resistance in the second episode of relapse suggests that fluoroquinolones should be used with caution when treating TB cases with relapse, preferably guided by DST results.
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Affiliation(s)
- Wencong He
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yunhong Tan
- Hunan Provincial Chest Hospital, Tuberculosis Control Institution of Hunan Province, Changsha, Hunan, China
| | - Zexuan Song
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Binbin Liu
- Hunan Provincial Chest Hospital, Tuberculosis Control Institution of Hunan Province, Changsha, Hunan, China
| | - Yiting Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ping He
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Fei Huang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chunfa Liu
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Huiwen Zheng
- Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Shaojun Pei
- School of Public Health, Peking University, Beijing, China
| | - Dongxin Liu
- Shenzhen Third People's Hospital, Shenzhen, China
| | - Aijing Ma
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaolong Cao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Bing Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shengfen Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
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Ou X, Zhang Z, Zhao B, Song Z, Wang S, He W, Pei S, Liu D, Xing R, Xia H, Zhao Y. Evaluation Study of xMAP TIER Assay on a Microsphere-Based Platform for Detecting First-Line Anti-Tuberculosis Drug Resistance. Int J Environ Res Public Health 2022; 19:ijerph192417068. [PMID: 36554951 PMCID: PMC9779588 DOI: 10.3390/ijerph192417068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 05/09/2023]
Abstract
Early diagnosis of drug susceptibility for tuberculosis (TB) patients could guide the timely initiation of effective treatment. We evaluated a novel multiplex xMAP TIER (Tuberculosis-Isoniazid-Ethambutol-Rifampicin) assay based on the Luminex xMAP system to detect first-line anti-tuberculous drug resistance. Deoxyribonucleic acid samples from 353 Mycobacterium tuberculosis clinical isolates were amplified by multiplex polymerase chain reaction, followed by hybridization and analysis through the xMAP system. Compared with the broth microdilution method, the sensitivity and specificity of the xMAP TIER assay for detecting resistance was 94.9% (95%CI, 90.0-99.8%) and 98.9% (95%CI, 97.7-100.0%) for rifampicin; 89.1% (95%CI, 83.9-94.3%) and 100.0% (95%CI, 100.0-100.0%) for isoniazid; 82.1% (95% CI, 68.0-96.3%) and 99.7% (95% CI, 99.0-100.0%) for ethambutol. With DNA sequencing as the reference standard, the sensitivity and specificity of xMAP TIER for detecting resistance were 95.0% (95% CI, 90.2-99.8%) and 99.6% (95% CI, 98.9-100.0%) for rifampicin; 96.9% (95% CI, 93.8-99.9%) and 100.0% (95% CI, 100.0-100.0%) for isoniazid; 86.1% (95% CI, 74.8-97.4%) and 100.0% (95% CI, 100.0-100.0%) for ethambutol. The results achieved showed that the xMAP TIER assay had good performance for detecting first-line anti-tuberculosis drug resistance, and it has the potential to diagnose drug-resistant tuberculosis more accurately due to the addition of more optimal design primers and probes on open architecture xMAP system.
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Affiliation(s)
- Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zhiguo Zhang
- Tuberculosis Dispensary of Changping District, Beijing 102202, China
| | - Bing Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zexuan Song
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Shengfen Wang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Wencong He
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Shaojun Pei
- School of Public Health, Peking University, Beijing 100191, China
| | - Dongxin Liu
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Ruida Xing
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Hui Xia
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
- Correspondence:
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Wenbin Y, Liu T, He M, Yi J, Tang L, Ou X, Hu C. 226MO Is induction chemotherapy beneficial in locally recurrent nasopharyngeal carcinoma before re-irradiation? A multicenter retrospective analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Hammel P, Golan T, Reni M, Van Cutsem E, Macarulla Mercade T, Hall M, Park J, Hochhauser D, Arnold D, Oh DY, Reinacher-Schick A, Tortora G, Algül H, O'Reilly E, Sharan K, Ou X, Cui K, Locker G, Kindler H. 1298P Extended overall survival results from the POLO study of active maintenance olaparib in patients with metastatic pancreatic cancer and a germline BRCA mutation. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Zhou Y, Anthony R, Wang S, Ou X, Liu D, Zhao Y, van Soolingen D. Corrigendum to ‘The epidemic of multidrug resistant tuberculosis in China in historical and phylogenetic perspectives’ [Journal of Infection, Volume 80, Issue 4 (2020) Pages 444-453]. J Infect 2022; 85:609. [DOI: 10.1016/j.jinf.2022.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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17
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Lightowler M, Li S, Ou X, Hofer G, Cho J, Zou X, Lu M, Xu H. Navigating crystal forms in pharmaceutical compounds by 3DED/microED. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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18
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Dong Y, Feng Y, Ou X, Liu C, Fan W, Zhao Y, Hu Y, Zhou X. Genomic analysis of diversity, biogeography, and drug resistance in Mycobacterium bovis. Transbound Emerg Dis 2022; 69:e2769-e2778. [PMID: 35695307 DOI: 10.1111/tbed.14628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/16/2022] [Accepted: 06/08/2022] [Indexed: 11/29/2022]
Abstract
Mycobacterium bovis is the cause of bovine tuberculosis, and it can also cause disease in humans, with symptoms similar to those caused by Mycobacterium tuberculosis. However, our understanding of its genomic diversity, biogeography, and drug resistance remains incomplete. We performed a comparative and phylogenetic analysis of 3,228 M. bovis genomes from 24 countries. Following drug susceptibility testing, we applied a bacterial genome-wide association study to capture associations between genomic variation and drug resistance in 74 newly isolated strains from China. The data show that the cattle-adapted M. bovis were divided into six lineages with a strong phylogeographical population structure. Lineage 1 and Lineage 6 are the most widespread globally, while others show a strong geographical restriction. 17.39% of M. bovis isolates were resistant to at least one drug in China. Furthermore, we identify genomic variations associated with an increased risk of resistance acquisition. This study furthers our knowledge of M. bovis diversity, biogeography, and drug resistance and will facilitate more deeply informed genomic tracking and surveillance to minimize its threat to human health, as a cause of zoonotic tuberculosis. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Yuhui Dong
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, National Animal Transmissible Spongiform Encephalopathy Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Yuqing Feng
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Chunfa Liu
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Weixing Fan
- National Reference Laboroatory for Animal Tuberculosis, China Animal Health and Epidemiology Center, Qingdao, 266032, China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Yongfei Hu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Xiangmei Zhou
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, National Animal Transmissible Spongiform Encephalopathy Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
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Dong Y, Ou X, Liu C, Fan W, Zhao Y, Zhou X. Diversity of glpK Gene and Its Effect on Drug Sensitivity in Mycobacterium bovis. Infect Drug Resist 2022; 15:1467-1475. [PMID: 35401008 PMCID: PMC8986483 DOI: 10.2147/idr.s346724] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 03/01/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Yuhui Dong
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, National Animal Transmissible Spongiform Encephalopathy Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, People’s Republic of China
| | - Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, People’s Republic of China
| | - Chunfa Liu
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, People’s Republic of China
| | - Weixing Fan
- National Reference Laboratory for Animal Tuberculosis, China Animal Health and Epidemiology Center, Qingdao, 266032, People’s Republic of China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, People’s Republic of China
| | - Xiangmei Zhou
- Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, National Animal Transmissible Spongiform Encephalopathy Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, People’s Republic of China
- Correspondence: Xiangmei Zhou, Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, National Animal Transmissible Spongiform Encephalopathy Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, People’s Republic of China, Email
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Xia H, Song Y, Zheng Y, Wang S, Zhao B, He W, Liu D, Ou X, Zhou Y, Zhao Y. Detection of Mycobacterium tuberculosis Rifampicin Resistance Conferred by Borderline rpoB Mutations: Xpert MTB/RIF is Superior to Phenotypic Drug Susceptibility Testing. Infect Drug Resist 2022; 15:1345-1352. [PMID: 35378895 PMCID: PMC8976515 DOI: 10.2147/idr.s358301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/12/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Hui Xia
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yuanyuan Song
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yang Zheng
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Shengfen Wang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Bing Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Wencong He
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Dongxin Liu
- Institute of Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, Shenzhen, People’s Republic of China
| | - Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yang Zhou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
- Correspondence: Yanlin Zhao, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, No. 155, Changbai Road, Changping District, Beijing, People’s Republic of China, Tel +86 10-58900517, Email
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21
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Li H, Liu C, Liang M, Liu D, Zhao B, Shi J, Zhao Y, Ou X, Zhang G. Tuberculosis Outbreak in an Educational Institution in Henan Province, China. Front Public Health 2021; 9:737488. [PMID: 34712640 PMCID: PMC8545879 DOI: 10.3389/fpubh.2021.737488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/23/2021] [Indexed: 11/24/2022] Open
Abstract
On June 17, 2018, a case of pulmonary tuberculosis (TB) was reported among students at a senior high school in Luoning, China. The outbreak encompassed a total of 23 cases along with TB screening in the whole school by means of PPD and chest X-ray. By the end of September 2018, the entire 9 cases cultured positive had epidemiological association. All of the 9 Mycobacterium tuberculosis (Mtb) isolates available were sensitive to all drugs tested and had similar spoligotyping and 15 loci mycobacterial interspersed repetitive-unit-variable-number tandem-repeat (MIRU-VNTR) profile. Whole-genome sequencing (WGS) of the Mtb isolates revealed 20 variable nucleotide positions within 8 cases, indicating a clonal outbreak. The index case, which was first identified and diagnosed, is separated from the cluster by a minimum number of 95 distinct SNPs. Minimum distance spanning tree (MST) indicted that the 8 cases were indeed part of a single transmission chain. It was concluded that this is an epidemic situation of TB outbreak exposed by the aggrieved index case at school, which was caused by the veiled infectious case wherein a student was suffering from TB and attending school simultaneously.
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Affiliation(s)
- Hui Li
- Henan Center for Disease Control and Prevention, Zhengzhou, China
| | - Chunfa Liu
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Minghui Liang
- Luoyang Center for Disease Control and Prevention, Luoyang, China
| | - Dongxin Liu
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Bing Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jie Shi
- Henan Center for Disease Control and Prevention, Zhengzhou, China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Guolong Zhang
- Henan Center for Disease Control and Prevention, Zhengzhou, China
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Na X, Phelan NE, Tadros MR, Wu Z, Andres A, Badger TM, Glasier CM, Ramakrishnaiah RR, Rowell AC, Wang L, Li G, Williams DK, Ou X. Maternal Obesity during Pregnancy is Associated with Lower Cortical Thickness in the Neonate Brain. AJNR Am J Neuroradiol 2021; 42:2238-2244. [PMID: 34620592 DOI: 10.3174/ajnr.a7316] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/09/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Recent studies have suggested that maternal obesity during pregnancy is associated with differences in neurodevelopmental outcomes in children. In this study, we aimed to investigate the relationships between maternal obesity during pregnancy and neonatal brain cortical development. MATERIALS AND METHODS Forty-four healthy women (28 normal-weight, 16 obese) were prospectively recruited at <10 weeks' gestation, and their healthy full-term neonates (23 boys, 21 girls) underwent brain MR imaging. All pregnant women had their body composition (fat mass percentage) measured at ∼12 weeks of pregnancy. All neonates were scanned at ∼2 weeks of age during natural sleep without sedation, and their 3D T1-weighted images were postprocessed by the new iBEAT2.0 software. Brain MR imaging segmentation and cortical surface reconstruction and parcellation were completed using age-appropriate templates. Mean cortical thickness for 34 regions in each brain hemisphere defined by the UNC Neonatal Cortical Surface Atlas was measured, compared between groups, and correlated with maternal body fat mass percentage, controlled for neonate sex and race, postmenstrual age at MR imaging, maternal age at pregnancy, and the maternal intelligence quotient and education. RESULTS Neonates born to obese mothers showed significantly lower (P ≤ .05, false discovery rate-corrected) cortical thickness in the left pars opercularis gyrus, left pars triangularis gyrus, and left rostral middle frontal gyrus. Mean cortical thickness in these frontal lobe regions negatively correlated (R = -0.34, P = .04; R = -0.50, P = .001; and R = -0.42, P = .01; respectively) with the maternal body fat mass percentage measured at early pregnancy. CONCLUSIONS Maternal obesity during pregnancy is associated with lower neonate brain cortical thickness in several frontal lobe regions important for language and executive functions.
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Affiliation(s)
- X Na
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.).,Arkansas Children's Nutrition Center (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas
| | | | | | - Z Wu
- Department of Radiology (Z.W., L.W., G.L.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - A Andres
- Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.).,Arkansas Children's Nutrition Center (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas
| | - T M Badger
- Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.).,Arkansas Children's Nutrition Center (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas
| | - C M Glasier
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.).,Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.)
| | - R R Ramakrishnaiah
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.).,Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.)
| | - A C Rowell
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.)
| | - L Wang
- Department of Radiology (Z.W., L.W., G.L.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - G Li
- Department of Radiology (Z.W., L.W., G.L.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - D K Williams
- Biostatistics (D.K.W.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - X Ou
- From the Department of Radiology (X.N., C.M.G., R.R.R., A.C.R., X.O.) .,Departments of Pediatrics (A.A., T.M.B., C.M.G., R.R.R., X.O.).,Arkansas Children's Nutrition Center (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.N., A.A., T.M.B., X.O.), Little Rock, Arkansas
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23
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Liu D, Huang F, Zhang G, He W, Ou X, He P, Zhao B, Zhu B, Liu F, Li Z, Liu C, Xia H, Wang S, Zhou Y, Walker TM, Liu L, Crook DW, Zhao Y. Whole-genome sequencing for surveillance of tuberculosis drug resistance and determination of resistance level in China. Clin Microbiol Infect 2021; 28:731.e9-731.e15. [PMID: 34600118 DOI: 10.1016/j.cmi.2021.09.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 01/07/2023]
Abstract
OBJECTIVES Phenotypic drug susceptibility testing for prediction of tuberculosis (TB) drug resistance is slow and unreliable, limiting individualized therapy and monitoring of national TB data. Our study evaluated whole-genome sequencing (WGS) for its predictive accuracy, use in TB drug-resistance surveillance and ability to quantify the effects of resistance-associated mutations on MICs of anti-TB drugs. METHODS We used WGS to measure the susceptibility of 4880 isolates to ten anti-TB drugs; for pyrazinamide, we used BACTEC MGIT 960. We determined the accuracy of WGS by comparing the prevalence of drug resistance, measured by WGS, with the true prevalence, determined by phenotypic susceptibility testing. We used the Student-Newman-Keuls test to confirm MIC differences of mutations. RESULTS Resistance to isoniazid, rifampin and ethambutol was highly accurately predicted with at least 92.92% (95% confidence interval [CI], 88.19-97.65) sensitivity, resistance to pyrazinamide with 50.52% (95% CI, 40.57-60.47) sensitivity, and resistance to six second-line drugs with 85.05% (95% CI, 80.27-89.83) to 96.01% (95% CI, 93.89-98.13) sensitivity. The rpoB S450L, katG S315T and gyrA D94G mutations always confer high-level resistance, while rpoB L430P, rpoB L452P, fabG1 C-15T and embB G406S often confer low-level resistance or sub-epidemiological cutoff (ECOFF) MIC elevation. CONCLUSION WGS can predict phenotypic susceptibility with high accuracy and could be a valuable tool for drug-resistance surveillance and allow the detection of drug-resistance level; It can be an important approach in TB drug-resistance surveillance and for determining therapeutic schemes.
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Affiliation(s)
- Dongxin Liu
- Chinese Centre for Disease Control and Prevention, Beijing, China; National Clinical Research Centre for Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong Province, China
| | - Fei Huang
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Guoliang Zhang
- National Clinical Research Centre for Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong Province, China
| | - Wencong He
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Xichao Ou
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Ping He
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Bing Zhao
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Baoli Zhu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Fei Liu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Zhiyuan Li
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Chunfa Liu
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Hui Xia
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Shengfen Wang
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Yang Zhou
- Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Timothy M Walker
- Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Lei Liu
- National Clinical Research Centre for Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong Province, China
| | - Derrick W Crook
- Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Yanlin Zhao
- Chinese Centre for Disease Control and Prevention, Beijing, China.
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Tusun D, Abulimiti M, Mamuti X, Liu Z, Xu D, Li G, Peng X, Abudureyimu T, Zhang L, Zhao Y, Ou X. The Epidemiological Characteristics of Pulmonary Tuberculosis - Kashgar Prefecture, Xinjiang Uygur Autonomous Region, China, 2011-2020. China CDC Wkly 2021; 3:557-561. [PMID: 34594935 PMCID: PMC8392941 DOI: 10.46234/ccdcw2021.144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/18/2021] [Indexed: 11/24/2022] Open
Abstract
Introduction: National Notifiable Disease Reporting System (NNDRS) plays an important role in the early detection and control of tuberculosis (TB) in China. This study analyzed the epidemiological characteristics of pulmonary tuberculosis (PTB) in Kashgar Prefecture, Xinjiang Uygur Autnomous Region, China from 2011 to 2020 to provide a scientific basis for developing TB control strategies and measures in Kashgar.
Methods:The data were collected from the NNDRS, which included the geographical distribution, age, sex, occupation, and pathogenic classification of reported PTB cases in 12 counties/cities of Kashgar Prefecture from 2011 to 2020. Descriptive statistics were used to describe the characteristic of PTB epidemic in Kashgar.
Results: There were 189,416 PTB cases reported during 2011–2020, with a mean annual PTB case notification rate (CNR) of 451.29/100,000. A rising trend in the rate of reported PTB between 2011 and 2017 (χ2trend=26.09, P<0.01) and a declining trend between 2018 and 2020 (χ2trend=314.44, P<0.01) were observed. The months with the highest reported number of PTB cases were March to May and November to December. The mean annual rate of reported PTB was 451.88/100,000 for males and 450.67/100,000 for females. In addition, 19.76% of patients were bacteriologically-confirmed (Bac+) cases (37,425/189,416), and the mean annual Bac+ CNR was 89.17/100,000, rising from 64.76/100,000 in 2011 to 139.12/100,000 in 2020 (χ2trend=74.44, P<0.01).
Conclusions: The CNR of reported PTB in Kashgar showed a significant declining trend in the past three years. Males, elderly population, winter and spring, and farmers as an occupation were the main factors associated with high incidence of tuberculosis in Kashgar. Targeted prevention and treatment of TB should be strengthened in key groups in this region.
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Affiliation(s)
- Diermulati Tusun
- Tuberculosis Dispensary of Kashgar Prefecture, Kashgar, Xinjiang Uygur Autonomous Region, China
| | | | - Xirizhati Mamuti
- Tuberculosis Dispensary of Kashgar Prefecture, Kashgar, Xinjiang Uygur Autonomous Region, China
| | - Zhenjiang Liu
- Tuberculosis Dispensary of Kashgar Prefecture, Kashgar, Xinjiang Uygur Autonomous Region, China
| | - Da Xu
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Guanzhen Li
- Shandong Provincial Hospital, Jinan, Shandong, China
| | - Xiaowang Peng
- Tuberculosis Dispensary of Kashgar Prefecture, Kashgar, Xinjiang Uygur Autonomous Region, China
| | - Tuerhong Abudureyimu
- Tuberculosis Dispensary of Kashgar Prefecture, Kashgar, Xinjiang Uygur Autonomous Region, China
| | - Lijie Zhang
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yanlin Zhao
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xichao Ou
- Chinese Center for Disease Control and Prevention, Beijing, China
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Zheng H, He W, Jiao W, Xia H, Sun L, Wang S, Xiao J, Ou X, Zhao Y, Shen A. Molecular characterization of multidrug-resistant tuberculosis against levofloxacin, moxifloxacin, bedaquiline, linezolid, clofazimine, and delamanid in southwest of China. BMC Infect Dis 2021; 21:330. [PMID: 33832459 PMCID: PMC8028109 DOI: 10.1186/s12879-021-06024-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/26/2021] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES To explore the drug susceptibility of levofloxacin (LFX), moxifloxacin (MFX), bedaquiline (BDQ), linezolid (LZD), clofazimine (CFZ) and delamanid (DLM) against multidrug resistant tuberculosis (MDR-TB) isolates from drug resistance survey of southwest China, and to illustrate the genetic characteristics of MDR-TB isolates with acquired drug resistance. METHODS A total of 339 strains were collected from smear-positive TB patients in the drug resistance survey of southwest China between January 2014 and December 2016. The MICs for the above mentioned drugs were determined for MDR-TB by conventional drug susceptibility testing. Genes related to drug resistance were amplified with their corresponding pairs of primers. RESULTS MDR was observed in 88 (26.0%; 88/339) isolates. LFX had the highest resistance rate (50.0%; 44/88), followed by MFX (38.6%; 34/88). The resistance rate to LZD, CFZ, and DLM was 4.5% (4/88), 3.4% (3/88), and 4.5% (4/88), respectively, and the lowest resistance rate was observed in BDQ (2.3%; 2/88). Of the 45 isolates resistant to LFX and MFX, the most prevalent resistance mutation was found in gyrA with the substitution of codon 94 (34/45, 75.6%). Two strains with CFZ - BDQ cross resistance had a mutation in the Rv0678 gene. Of the four LZD resistant isolates, two carried mutations in rplC gene. For the four isolates resistant to DLM, one isolate had mutations in codon 318 of fbiC gene, and two isolates were with mutations in codon 81 of ddn gene. CONCLUSION This study provided evidence of the usefulness of new anti-TB drugs in the treatment of MDR-TB in China.
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Affiliation(s)
- Huiwen Zheng
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Wencong He
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, 102200, China
| | - Weiwei Jiao
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, 102200, China
| | - Lin Sun
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Shengfen Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, 102200, China
| | - Jing Xiao
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, 102200, China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, 102200, China.
| | - Adong Shen
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
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26
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Ou X, Xia H, Wang S, Zhao B, Fan J, Song Y, Zhou Y, Zheng Y, Zhao Y. National Proficiency Testing of Molecular Diagnostics for Tuberculosis and Drug Resistance Detection - China, 2014-2019. China CDC Wkly 2021; 3:247-251. [PMID: 34594859 PMCID: PMC8392952 DOI: 10.46234/ccdcw2021.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/18/2021] [Indexed: 11/20/2022] Open
Abstract
What is already known about this topic? Proficiency testing (PT) is a key component of quality assurance and is essential in ensuring accurate laboratory diagnosis of tuberculosis (TB) and drug-resistant TB. The National Tuberculosis Reference Laboratory (NTRL) developed a novel PT panel to test laboratories’ proficiency for molecular TB diagnostic assays throughout the TB laboratory network. A total of 6 PT rounds for molecular diagnostics were conducted by NTRL from 2014 to 2019. What is added by this report? PT conducted using artificial sputum specimens increased from 120 in the first round to 1,835 in the sixth round. Overall, laboratories demonstrated good proficiency for MTB and drug-resistance detection by molecular diagnostics, which is evident from the qualification rates over the six rounds: 95%, 97%, 96%, 93%, 93%, and 97%, respectively. What are the implications for public health practice? The use of artificial sputum specimens for PT panel production to test TB molecular diagnostics in China is feasible. Most of the participating laboratories provided reliable molecular diagnostic results for MTB and drug-resistance detection. The TB laboratory network can be instrumental in implementing PT expansion and improving the quality of TB molecular diagnosis in China.
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Affiliation(s)
- Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui Xia
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shengfen Wang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Bing Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jiale Fan
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yuanyuan Song
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yang Zhou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yang Zheng
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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Han J, Sequist L, Ahn M, Cho B, Yu H, Kim S, Yang J, Lee J, Su W, Kowalski D, Orlov S, Cantarini M, Ren S, Frewer P, Ou X, Janne P. FP14.03 Osimertinib + Savolitinib in pts with EGFRm MET-Amplified/Overexpressed NSCLC: Phase Ib TATTON Parts B and D Final Analysis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ying RS, Le T, Cai WP, Li YR, Luo CB, Cao Y, Wen CY, Wang SG, Ou X, Chen WS, Chen SZ, Guo PL, Chen M, Guo Y, Tang XP, Li LH. Clinical epidemiology and outcome of HIV-associated talaromycosis in Guangdong, China, during 2011-2017. HIV Med 2020; 21:729-738. [PMID: 33369035 PMCID: PMC7978497 DOI: 10.1111/hiv.13024] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2020] [Indexed: 01/25/2023]
Abstract
OBJECTIVES Talaromycosis is an invasive mycosis endemic to Southeast Asia. This study aimed to investigate the epidemiology, clinical features and prognostic factors of HIV-associated talaromycosis in Guangdong, China. METHODS We retrospectively evaluated HIV patients hospitalized with histopathology- or culture-confirmed talaromycosis between 2011 and 2017. Factors associated with poor prognosis were identified using logistic regression. RESULTS Overall, 1079 patients with HIV-associated talaromycosis were evaluated. Both the number and prevalence of talaromycosis among HIV admissions increased from 125 and 15.7% in 2011 to 253 and 18.8% in 2017, respectively, reflecting the increase in HIV admissions. Annual admissions peaked during the rainy season between March and August. Common clinical manifestations included fever (85.6%), peripheral lymphadenopathy (72.3%), respiratory symptoms (60.8%), weight loss (49.8%), skin lesions (44.5%) and gastrointestinal symptoms (44.3%). Common laboratory abnormalities were hypoalbuminaemia (98.6%), anaemia (95.6%), elevated aspartate aminotransferase level (AST) (76.9%), elevated alkaline phosphatase level (55.8%) and thrombocytopenia (53.7%). The median CD4 count was 9 cells/μL. Talaromyces marneffei was isolated from blood and bone marrow cultures of 66.6% and 74.5% of patients, respectively. The rate increased to 86.6% when both cultures were performed concurrently. At discharge, 14% of patients showed worsening conditions or died. Leucocytosis, thrombocytopenia, elevated AST, total bilirubin, creatinine and azole monotherapy independently predicted poor prognosis. CONCLUSIONS The incidence of HIV-associated talaromycosis has increased in Guangdong with the high HIV burden in China. Skin lesions were seen in less than half of patients. Induction therapy with azole alone is associated with higher mortality. Findings from this study should help to improve treatment of the disease.
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Affiliation(s)
- R S Ying
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - T Le
- Division of Infectious Diseases and International Health, Duke University School of Medicine, Durham, NC, USA
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | - W P Cai
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Y R Li
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - C B Luo
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Y Cao
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - C Y Wen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - S G Wang
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - X Ou
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - W S Chen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - S Z Chen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - P L Guo
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - M Chen
- Hospital-Acquired Infection Control Department, Bijie Third People's Hospital, Bijie, China
| | - Y Guo
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - X P Tang
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - L H Li
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
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29
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Gan Y, Du Q, Liu W, Li J, Jiang X, Li X, Ou X, Yue H, Zhu H, Zhong Q, Luo D, Liang Q, Xie Y, Zhang Q, Li G, Shang Y. Value Of Radiotherapy After Minimally Invasive Surgery In Patients With Stage IA1-IIA1 Cervical Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Ou X, Shen C, He X, Hu C. Germline Mutation Landscape of DNA Damage Repair Genes in Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Graham RM, Jiang L, McCorkle G, Bellando BJ, Sorensen ST, Glasier CM, Ramakrishnaiah RH, Rowell AC, Coker JL, Ou X. Maternal Anxiety and Depression during Late Pregnancy and Newborn Brain White Matter Development. AJNR Am J Neuroradiol 2020; 41:1908-1915. [PMID: 32912873 DOI: 10.3174/ajnr.a6759] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/06/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND PURPOSE Anxiety and depression during pregnancy have been associated with an increased risk of adverse neurodevelopmental outcomes in offspring. We aimed to study the in utero effects of maternal anxiety and depression on early brain development. MATERIALS AND METHODS Pregnant women were recruited at ∼36 weeks of gestation for this prospective study. They were assessed for anxiety symptoms by the State-Trait Anxiety Inventory and for depression symptoms by the Beck Depression Inventory, 2nd Edition. After delivery, infant underwent an MR imaging examination of the brain without sedation, including DTI, for evaluation of white matter (WM) development. Infant fractional anisotropy values, a putative marker of WM integrity, were correlated with the mothers' State-Trait Anxiety Inventory and Beck Depression Inventory scores by using both tract-based spatial statistics and ROI methods. RESULTS Thirty-four infants were included in this study. Both maternal State-Anxiety and Trait-Anxiety scores negatively correlated (P < .05, corrected) with fractional anisotropy values in widespread brain WM regions; Beck Depression Inventory scores also negatively correlated (P < .05) with fractional anisotropy values in one cluster in the brain. Further ROI analyses confirmed significant negative correlations between average fractional anisotropy values in ROIs including left and right prefrontal WM, left and right middle frontal gyrus WM, and the fornix, and State-Anxiety (R values, -0.47 to -0.67; P values, .008 to <.001), Trait-Anxiety (R, -0.37 to -0.59; P, .04 to <.001), and Beck Depression Inventory (R values, -0.36 to -0.55; P, .05 to .002) scores. CONCLUSIONS Higher maternal anxiety and depression symptom scores during late pregnancy were associated with lower estimated infant brain WM development, which indicated in utero influences of maternal mental health during pregnancy on the developing brain.
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Affiliation(s)
- R M Graham
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.)
| | - L Jiang
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.)
| | - G McCorkle
- Arkansas Children's Nutrition Center (G.M., X.O.), Little Rock, Arkansas
| | - B J Bellando
- Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.)
| | - S T Sorensen
- Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.)
| | - C M Glasier
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.).,Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.)
| | - R H Ramakrishnaiah
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.).,Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.)
| | - A C Rowell
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.)
| | - J L Coker
- Psychiatry, and Obstetrics and Gynecology (J.L.C.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - X Ou
- From the Departments of Radiology (R.M.G., L.J., C.M.G., R.H.R., A.C.R., X.O.) .,Pediatrics (B.J.B., S.T.S., C.M.G., R.H.R., X.O.).,Arkansas Children's Nutrition Center (G.M., X.O.), Little Rock, Arkansas.,Arkansas Children's Research Institute (X.O.), Little Rock, Arkansas
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Li T, Badger TM, Bellando BJ, Sorensen ST, Lou X, Ou X. Brain Cortical Structure and Executive Function in Children May Be Influenced by Parental Choices of Infant Diets. AJNR Am J Neuroradiol 2020; 41:1302-1308. [PMID: 32527846 DOI: 10.3174/ajnr.a6601] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 04/17/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND AND PURPOSE While it is known that breastfeeding promotes healthy brain development in children, the potential effects of formulas substantially differing in composition (ie, milk-based versus soy-based) during infancy on brain development are unclear. MATERIALS AND METHODS Seventy-one 8-year-old children who were predominantly breastfed, milk formula fed, or soy formula fed during infancy were recruited for an MR imaging examination of the brain and a Behavior Rating Inventory of Executive Function assessment (completed via a questionnaire to the parents). Brain cortical features measured from MR imaging such as cortical thickness and surface area were extracted and compared among groups and correlated with Behavior Rating Inventory of Executive Function test scores. RESULTS Clusters in the frontal and occipital lobes showed significant differences (cluster-wise P ≤ .05, corrected for multiple comparisons) in cortical thickness or surface area among the 3 diet groups. The effects were more prominent for boys, particularly for comparison of the milk formula fed versus soy formula fed boys. Assessments of executive function and behavior showed significantly lower Behavior Rating Inventory of Executive Function test scores in soy formula fed versus milk formula fed groups, which were mostly attributed to differences in boys. There were no differences between milk formula fed and breastfed groups for either sex. Mean cortical thickness for several of the clusters in the brain showing infant diet-associated effects significantly correlated with Behavior Rating Inventory of Executive Function scores. CONCLUSIONS Choices of infant diets (ie, breastfed, milk formula fed, soy formula fed) may have long-term and sex-specific effects on the cortical development and executive function and behavior of children's brains.
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Affiliation(s)
- T Li
- From the Departments of Radiology (T.L., X.O.)
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
- Department of Information Sciences (T.L., X.O.), University of Arkansas at Little Rock, Little Rock, Arkansas
| | - T M Badger
- Pediatrics (T.M.B., B.J.B., S.T.S., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
| | - B J Bellando
- Pediatrics (T.M.B., B.J.B., S.T.S., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
| | - S T Sorensen
- Pediatrics (T.M.B., B.J.B., S.T.S., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
| | - X Lou
- Department of Biostatistics (X.L., X.O.), University of Florida, Gainesville, Florida
| | - X Ou
- From the Departments of Radiology (T.L., X.O.)
- Pediatrics (T.M.B., B.J.B., S.T.S., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (T.L., T.M.B., B.J.B., S.T.S., X.O.), Little Rock, Arkansas
- Department of Information Sciences (T.L., X.O.), University of Arkansas at Little Rock, Little Rock, Arkansas
- Department of Biostatistics (X.L., X.O.), University of Florida, Gainesville, Florida
- Arkansas Children's Research Institute (X.O.), Little Rock, Arkansas
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Wen CY, Xie ZW, Li YP, Deng XL, Chen XT, Cao Y, Ou X, Lin WY, Li F, Cai WP, Li LH. [Real-world efficacy and safety of lopinavir/ritonavir and arbidol in treating with COVID-19 : an observational cohort study]. Zhonghua Nei Ke Za Zhi 2020; 59:605-609. [PMID: 32388937 DOI: 10.3760/cma.j.cn112138-20200227-00147] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective: To evaluate the efficacy and safety of lopinavir/ritonavir (LPV/r) and arbidol in the treatment of COVID-19 in the real world. Methods: The clinical data of 178 patients diagnosed with COVID-19 admitted to Guangzhou Eighth People's Hospital were retrospectively analyzed from January 21 to February 9, 2020. According to the patient's antiviral treatment regimen, 178 patients were divided into 4 groups including LPV/r group (59 patients), arbidol group (36 patients), combination therapy with LPV/r plus arbidol group (25 patients) and the conventional treatment group without any antiviral drugs (58 patients). The main observation end points of the study was the negative conversion time of nucleic acid of the novel coronavirus (2019-nCoV) in pharyngeal swab. Results: The baseline of 4 groups before treatment was consistent and comparable. The negative conversion time of nucleic acid of the 2019-nCoV in pharyngeal swab was (10.20 ± 3.49), (10.11 ± 4.68), (10.86 ± 4.74), (8.44 ± 3.51) days separately in the LPV/r group, the arbidol group, the combination therapy group, and the conventional treatment group without significant difference (F = 2.556, P = 0.058). There was also no significant difference in the rate of negative conversion rate of 2019-nCoV nucleic acid, the improvement ration in clinical symptoms, and the improvement ration of pulmonary infection in the lung CT imaging (P> 0.05). However, a statistically significant difference was found in the proportion of deterioration changing from mild/moderate to severe/critical type at day 7 (χ(2) = 9.311, P = 0.017) as follows: the combination therapy group (24.0%, 6/25), the arbidol group ( 16.7%, 6/36), LPV/r group (5.4%, 3/56) and conventional treatment group (5.2%, 3/58). Moreover, the frequency of adverse reactions in the three groups receiving antiviral drugs was significantly higher than that in the conventional treatment group (χ(2) = 14.875, P = 0.002). Conclusions: No evidences could prove that LPV/r and arbidol could shorten the negative conversion time of novel coronavirus nucleic acid in pharyngeal swab nor improve the symptoms of patients. Furthermore, the combination usage of LPV/r and arbidol may not benefit for improving the disease. Noteworthy, the adverse reactions of the antiviral drugs should be paid careful attention during the treatment.
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Affiliation(s)
- C Y Wen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Z W Xie
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Y P Li
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - X L Deng
- Intensive Care Unit, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - X T Chen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Y Cao
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - X Ou
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - W Y Lin
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - F Li
- Institute of Infectious Diseases, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - W P Cai
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - L H Li
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou 510060, China
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He S, Wen Q, O’Shea C, Mu-u-min R, Tan X, Ou X, Camelliti P, Pavlovic P, Lei M. A new method of transverse cardiac slicing and optical mapping of murine heart. J Mol Cell Cardiol 2020. [DOI: 10.1016/j.yjmcc.2019.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhou Y, Anthony R, Wang S, Ou X, Liu D, Zhao Y, Soolingen DV. The epidemic of multidrug resistant tuberculosis in China in historical and phylogenetic perspectives. J Infect 2020; 80:444-453. [PMID: 31972213 DOI: 10.1016/j.jinf.2019.11.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/18/2019] [Accepted: 11/19/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVES For the past decade, the epidemic of multidrug resistance tuberculosis (MDR-TB) stays high in China. We investigated the possible driving forces behind the epidemics from phylogenetic and historical perspectives. METHODS 420 representative strains were selected from the first national drug resistance survey based on their genotypes, drug susceptibility patterns and geographic information. We reconstructed the phylogeny by whole genome sequencing and compared it to the global phylogeny including MDR outbreaks reported in other settings. We estimated the historical trajectory of population dynamics by Bayesian Skygrid plot for all strains and MDR-TB alone. Integrating geographic information and mutations in drug resistance related genes, we investigated the spatial scale of transmission, recent selection of drug resistant mutant, and mechanism for fitness restoration. RESULTS Three new subgroups within Beijing clade are described for the first time, but none of the MDR-TB outbreak strains reported in other high MDR-TB burden settings is identified. The overall epidemics experienced two successive phases of expansion at different rates between 1660s and 1950s, followed by a sharp decline till today. Four fifths of the clustered MDR-TB strains suggest transmission of DR strains and nearly half suggest recent selection of (additional) mutations in rpoB. Among all identified transmission events, about one fifth occurred between far distant locations. Possible intergenic and intragenic compensatory mutations both presented in our dataset at comparable frequencies. CONCLUSIONS MDR-TB epidemic in China is not yet driven by the spread of a few highly successful clonal expansions but by repeated emergence of smaller and currently less successful clusters. However, internal migration and undertreatment could escalate MDR-TB epidemic. To prevent generating of drug resistance and restoration of fitness as well as to stop transmission of MDR-TB at early stage, national TB control program needs to strengthen management of floating populations and promote universal drug susceptibility testing in China.
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Affiliation(s)
- Yang Zhou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, No.155 Changbai road, Changping District, Beijing, China; Radboud University Medical Center, Houtlaan 4, 6525 XZ Nijmegen, The Netherlands.
| | - Richard Anthony
- National Institute for Public Health and the Environment, 3720 BA Bilthoven, The Netherlands
| | - Shengfen Wang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, No.155 Changbai road, Changping District, Beijing, China
| | - Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, No.155 Changbai road, Changping District, Beijing, China
| | - Dongxin Liu
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, No.155 Changbai road, Changping District, Beijing, China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, No.155 Changbai road, Changping District, Beijing, China.
| | - Dick van Soolingen
- National Institute for Public Health and the Environment, 3720 BA Bilthoven, The Netherlands.
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Wang S, Zhou Y, Zhao B, Ou X, Xia H, Zheng Y, Song Y, Cheng Q, Wang X, Zhao Y. Characteristics of compensatory mutations in the rpoC gene and their association with compensated transmission of Mycobacterium tuberculosis. Front Med 2020; 14:51-59. [PMID: 31938981 DOI: 10.1007/s11684-019-0720-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 09/07/2019] [Indexed: 11/26/2022]
Abstract
The aim of this study was to characterize rpoC gene mutations in Mycobacterium tuberculosis (MTB) and investigate the factors associated with rpoC mutations and the relation between rpoC mutations and tuberculosis (TB) transmission. A total of 245 MTB clinical isolates from patients with TB in six provinces and two municipalities in China were characterized based on gene mutations through DNA sequencing of rpoC and rpoB genes, phenotyping via standard drug susceptibility testing, and genotypic profiling by mycobacterial interspersed repetitive unit-variable number tandem repeat (MIRU-VNTR) typing. Approximately 36.4% of the rifampin-resistant isolates harbored nonsynonymous mutations in the rpoC gene. Twenty-nine nonsynonymous single mutations and three double mutations were identified. The rpoC mutations at locus 483 (11.3%) were predominant, and the mutations at V483G, W484G, I491V, L516P, L566R, N698K, and A788E accounted for 54.5% of the total detected mutations. Fifteen new mutations in the rpoC gene were identified. Rifampin resistance and rpoB mutations at locus 531 were significantly associated with rpoC mutations. MIRU-VNTR genotype results indicated that 18.4% of the studied isolates were clustered, and the rpoC mutations were not significantly associated with MIRU-VNTR clusters. A large proportion of rpoC mutation was observed in the rifampicin-resistant MTB isolates. However, the findings of this study do not support the association of rpoC mutation with compensated transmissibility.
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Affiliation(s)
- Shengfen Wang
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Yang Zhou
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Bing Zhao
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Yang Zheng
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Yuanyuan Song
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Qian Cheng
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
| | - Xinyang Wang
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China
- Department of Microbiology, Basic Medicine College, Harbin Medical University, Harbin, 150081, China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
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Han JY, Sequist L, Ahn MJ, Cho B, Yu H, Kim SW, Yang JH, Lee J, Su WC, Kowalski D, Orlov S, Cantarini M, Verheijen R, Mellemgaard A, Frewer P, Ou X, Oxnard G. TATTON expansion cohorts: A phase Ib study of osimertinib plus savolitinib in patients (pts) with EGFR-mutant, MET-positive NSCLC following disease progression on a prior EGFR-TKI. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz446.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ou X, Wang G, Shen C, He X, Hu C. Whole-Exome Sequencing Identified Multiple Germline Mutations of DNA Repair Pathway in Patients with and without a Family History of Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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He S, Wen Q, O’Shea C, Mu-u-min R, Kou K, Grassam-Rowe A, Liu Y, Fan Z, Tan X, Ou X, Camelliti P, Pavlovic D, Lei M. A Protocol for Transverse Cardiac Slicing and Optical Mapping in Murine Heart. Front Physiol 2019; 10:755. [PMID: 31293436 PMCID: PMC6603341 DOI: 10.3389/fphys.2019.00755] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 05/31/2019] [Indexed: 01/27/2023] Open
Abstract
Thin living tissue slices have recently emerged as a new tissue model for cardiac electrophysiological research. Slices can be produced from human cardiac tissue, in addition to small and large mammalian hearts, representing a powerful in vitro model system for preclinical and translational heart research. In the present protocol, we describe a detailed mouse heart transverse slicing and optical imaging methodology. The use of this technology for high-throughput optical imaging allows study of electrophysiology of murine hearts in an organotypic pseudo two-dimensional model. The slices are cut at right angles to the long axis of the heart, permitting robust interrogation of transmembrane potential (Vm) and calcium transients (CaT) throughout the entire heart with exceptional regional precision. This approach enables the use of a series of slices prepared from the ventricles to measure Vm and CaT with high temporal and spatial resolution, allowing (i) comparison of successive slices which form a stack representing the original geometry of the heart; (ii) profiling of transmural and regional gradients in Vm and CaT in the ventricle; (iii) characterization of transmural and regional profiles of action potential and CaT alternans under stress (e.g., high frequency pacing or β-adrenergic stimulation) or pathological conditions (e.g., hypertrophy). Thus, the protocol described here provides a powerful platform for innovative research on electrical and calcium handling heterogeneity within the heart. It can be also combined with optogenetic technology to carry out optical stimulation; aiding studies of cellular Vm and CaT in a cell type specific manner.
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Affiliation(s)
- S. He
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Q. Wen
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - C. O’Shea
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - R. Mu-u-min
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
| | - K. Kou
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - A. Grassam-Rowe
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
| | - Y. Liu
- Department of Cardiovascular Medicine, Southwest Medical University, Luzhou, China
| | - Z. Fan
- Department of Cardiovascular Medicine, Southwest Medical University, Luzhou, China
| | - X. Tan
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - X. Ou
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - P. Camelliti
- School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - D. Pavlovic
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, United Kingdom
| | - M. Lei
- Key Laboratory of Medical Electrophysiology of Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
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Ou X, Zhang J, Wang J, Pang F, Ma X. Ability of models based on clinical parameters and radiomic features from 18F-FDG PET/CT to differentiate breast carcinoma from breast lymphoma using machine-learning approach. Breast 2019. [DOI: 10.1016/s0960-9776(19)30201-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Liu D, He W, Jiang M, Zhao B, Ou X, Liu C, Xia H, Zhou Y, Wang S, Song Y, Zheng Y, Chen Q, Fan J, He G, Zhao Y. Development of a loop-mediated isothermal amplification coupled lateral flow dipstick targeting erm(41) for detection of Mycobacterium abscessus and Mycobacterium massiliense. AMB Express 2019; 9:11. [PMID: 30673881 PMCID: PMC6344564 DOI: 10.1186/s13568-019-0734-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 01/11/2019] [Indexed: 02/06/2023] Open
Abstract
Mycobacterium abscessus (M. abscessus) and Mycobacterium massiliense (M. massiliense) are major pathogens that cause post-surgical wound infection and chronic pulmonary disease. Although they are closely related subspecies of M. abscessus complex, their infections are associated with different drug-resistance and cure rate. In the present study, a loop-mediated isothermal amplification (LAMP) coupled with lateral flow dipstick (LFD) method was developed to simultaneous detect M. abscessus and M. massiliense, via specific erm(41) gene. The amplification was carried out at 65 °C for only 60 min, and the results could be visualized on a lateral flow strip. Positive results only occurred in M. abscessus and M. massiliense, no cross-reaction with other mycobacterial species was observed. Therefore, the cost-effective MABC (M. abscessus complex)–LAMP–LFD method developed here was able to correct the diagnose of M. abscessus and M. massiliense infection in a short time. Thus, this method could be used to guide clinicians in treatment of M. abscessus group infections.
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Deoni SC, Adams SH, Li X, Badger TM, Pivik RT, Glasier CM, Ramakrishnaiah RH, Rowell AC, Ou X. Cesarean Delivery Impacts Infant Brain Development. AJNR Am J Neuroradiol 2019; 40:169-177. [PMID: 30467219 DOI: 10.3174/ajnr.a5887] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/06/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE The cesarean delivery rate has increased globally in the past few decades. Neurodevelopmental outcomes associated with cesarean delivery are still unclear. This study investigated whether cesarean delivery has any effect on the brain development of offspring. MATERIALS AND METHODS A total of 306 healthy children were studied retrospectively. We included 3 cohorts: 2-week-old neonates (cohort 1, n = 32/11 for vaginal delivery/cesarean delivery) and 8-year-old children (cohort 2, n = 37/23 for vaginal delivery/cesarean delivery) studied at Arkansas Children's Hospital, and a longitudinal cohort of 3-month to 5-year-old children (cohort 3, n = 164/39 for vaginal delivery/cesarean delivery) studied independently at Brown University. Diffusion tensor imaging, myelin water fraction imaging, voxel-based morphometry, and/or resting-state fMRI data were analyzed to evaluate white matter integrity, myelination, gray matter volume, and/or functional connectivity, respectively. RESULTS While not all MR imaging techniques were shared across the institutions/cohorts, post hoc analyses showed similar results of potential effects of cesarean delivery. The cesarean delivery group in cohort 1 showed significantly lower white matter development in widespread brain regions and significantly lower functional connectivity in the brain default mode network, controlled for a number of potential confounders. No group differences were found in cohort 2 in white matter integrity or gray matter volume. Cohort 3 had significantly different trajectories of white matter myelination between groups, with those born by cesarean delivery having reduced myelin in infancy but normalizing with age. CONCLUSIONS Cesarean delivery may influence infant brain development. The impact may be transient because similar effects were not observed in older children. Further prospective and longitudinal studies may be needed to confirm these novel findings.
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Affiliation(s)
- S C Deoni
- School of Engineering (S.C.D.), Brown University, Providence, Rhode Island
| | - S H Adams
- From the Arkansas Children's Nutrition Center (S.H.A., T.M.B., R.T.P., X.O.), Little Rock, Arkansas
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - X Li
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
| | - T M Badger
- From the Arkansas Children's Nutrition Center (S.H.A., T.M.B., R.T.P., X.O.), Little Rock, Arkansas
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - R T Pivik
- From the Arkansas Children's Nutrition Center (S.H.A., T.M.B., R.T.P., X.O.), Little Rock, Arkansas
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - C M Glasier
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Research Institute (C.M.G., R.H.R., A.C.R., X.O.), Little Rock, Arkansas
| | - R H Ramakrishnaiah
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
- Arkansas Children's Research Institute (C.M.G., R.H.R., A.C.R., X.O.), Little Rock, Arkansas
| | - A C Rowell
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
- Arkansas Children's Research Institute (C.M.G., R.H.R., A.C.R., X.O.), Little Rock, Arkansas
| | - X Ou
- From the Arkansas Children's Nutrition Center (S.H.A., T.M.B., R.T.P., X.O.), Little Rock, Arkansas
- Departments of Radiology (X.L., C.M.G., R.H.R., A.C.R., X.O.)
- Pediatrics (S.H.A., T.M.B., R.T.P., C.M.G., X.O.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Research Institute (C.M.G., R.H.R., A.C.R., X.O.), Little Rock, Arkansas
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Ou X, Glasier CM, Ramakrishnaiah RH, Kanfi A, Rowell AC, Pivik RT, Andres A, Cleves MA, Badger TM. Gestational Age at Birth and Brain White Matter Development in Term-Born Infants and Children. AJNR Am J Neuroradiol 2017; 38:2373-2379. [PMID: 29025726 DOI: 10.3174/ajnr.a5408] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/22/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Studies on infants and children born preterm have shown that adequate gestational length is critical for brain white matter development. Less is known regarding how variations in gestational age at birth in term infants and children affect white matter development, which was evaluated in this study. MATERIALS AND METHODS Using DTI tract-based spatial statistics methods, we evaluated white matter microstructures in 2 groups of term-born (≥37 weeks of gestation) healthy subjects: 2-week-old infants (n = 44) and 8-year-old children (n = 63). DTI parameters including fractional anisotropy, mean diffusivity, axial diffusivity, and radial diffusivity were calculated by voxelwise and ROI methods and were correlated with gestational age at birth, with potential confounding factors such as postnatal age and sex controlled. RESULTS Fractional anisotropy values, which are markers for white matter microstructural integrity, positively correlated (P < .05, corrected) with gestational age at birth in most major white matter tracts/regions for the term infants. Mean diffusivity values, which are measures of water diffusivities in the brain, and axial and radial diffusivity values, which are markers for axonal growth and myelination, respectively, negatively correlated (P < .05, corrected) with gestational age at birth in all major white matter tracts/regions excluding the body and splenium of the corpus callosum for the term infants. No significant correlations with gestational age were observed for any tracts/regions for the term-born 8-year-old children. CONCLUSIONS Our results indicate that longer gestation during the normal term period is associated with significantly greater infant white matter development (as reflected by higher fractional anisotropy and lower mean diffusivity, axial diffusivity, and radial diffusivity values); however, similar associations were not observable in later childhood.
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Affiliation(s)
- X Ou
- From the Departments of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.)
- Pediatrics (X.O., C.M.G., R.T.P., A.A., M.A.C., T.M.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (X.O., R.T.P., A.A., T.M.B.), Little Rock, Arkansas
- Department of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.), Arkansas Children's Hospital, Little Rock, Arkansas
| | - C M Glasier
- From the Departments of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.)
- Pediatrics (X.O., C.M.G., R.T.P., A.A., M.A.C., T.M.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Department of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.), Arkansas Children's Hospital, Little Rock, Arkansas
| | - R H Ramakrishnaiah
- From the Departments of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.)
- Department of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.), Arkansas Children's Hospital, Little Rock, Arkansas
| | - A Kanfi
- From the Departments of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.)
- Department of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.), Arkansas Children's Hospital, Little Rock, Arkansas
| | - A C Rowell
- From the Departments of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.)
- Department of Radiology (X.O., C.M.G., R.H.R., A.K., A.C.R.), Arkansas Children's Hospital, Little Rock, Arkansas
| | - R T Pivik
- Pediatrics (X.O., C.M.G., R.T.P., A.A., M.A.C., T.M.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (X.O., R.T.P., A.A., T.M.B.), Little Rock, Arkansas
| | - A Andres
- Pediatrics (X.O., C.M.G., R.T.P., A.A., M.A.C., T.M.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (X.O., R.T.P., A.A., T.M.B.), Little Rock, Arkansas
| | - M A Cleves
- Pediatrics (X.O., C.M.G., R.T.P., A.A., M.A.C., T.M.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - T M Badger
- Pediatrics (X.O., C.M.G., R.T.P., A.A., M.A.C., T.M.B.), University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Arkansas Children's Nutrition Center (X.O., R.T.P., A.A., T.M.B.), Little Rock, Arkansas
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Liu D, Zhao B, Ou X, Zheng H, Ma A, He W, Wang S, Zhou Y, Xia H, Zheng Y, Hou P, He G, Zhao Y. A novel isothermal amplification-based method to detect Mycobacterium tuberculosis complex. J Microbiol Methods 2017; 145:59-65. [PMID: 29109010 DOI: 10.1016/j.mimet.2017.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 10/25/2017] [Accepted: 11/02/2017] [Indexed: 10/18/2022]
Abstract
Mycobacterium tuberculosis (MTB) is the causative agent of pulmonary tuberculosis. Rapid and accurate diagnosis is crucial to tuberculosis control and prevention. A series of diagnostic methods has been available for MTB detection; however, new rapid, simple and affordable methods are needed. In this study, a multiple cross displacement amplification (MCDA)-based assay was developed to detect the IS6110 gene of the M. tuberculosis complex. Hydroxy naphthol blue (HNB), a colorimetric indicator, was used to detect amplification products. Amplification was carried out at a constant temperature (68°C) for only 40min, followed by direct determination of amplification products through observation of color variations. The entire detection procedure, from processing of specimens to reading of results, required only 85min. Moreover, this assay, hereafter designated MTB-MCDA-HNB, was able to detect as little as 1pg of DNA extracted from the Bacille Calmette-Guerin (BCG) strain of Mycobacterium bovis. No cross-reaction with nontuberculous mycobacteria (NTM) species was observed. Moreover, during testing of clinical samples, the sensitivity and specificity of MCDA results were 94.7% and 92.9%, respectively, when compared to results obtained using the Xpert MTB/RIF method. Therefore, the MTB-MCDA-HNB method developed in this study holds promise for application as an effective point-of-care test to detect M. tuberculosis.
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Affiliation(s)
- Dongxin Liu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Bing Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Xichao Ou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Huiwen Zheng
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Aijing Ma
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Wencong He
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Shengfen Wang
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Yang Zhou
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Hui Xia
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Yang Zheng
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Ping Hou
- Haerbin Tuberculosis Control Institute, Daoli, Hongxia Street 62, Haerbin 150000, China
| | - Guangxue He
- Science and Technology Department, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China
| | - Yanlin Zhao
- National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Changping, Changbai Road 155, Beijing 102206, China.
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Miao Y, Ou X, Wang J, Wang X, He X, Shen C, Ying H, Hu W, Hu C. Development and Validation of a Model for Temporal Lobe Necrosis Based on 749 Nasopharyngeal Carcinoma Patients Following IMRT. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ou X, Miao Y, Hu C. The Feasibility of Selectively Omission of Radiation to Level IB Lymph Nodes in Low-Risk Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zhou Y, van den Hof S, Wang S, Pang Y, Zhao B, Xia H, Anthony R, Ou X, Li Q, Zheng Y, Song Y, Zhao Y, van Soolingen D. Association between genotype and drug resistance profiles of Mycobacterium tuberculosis strains circulating in China in a national drug resistance survey. PLoS One 2017; 12:e0174197. [PMID: 28333978 PMCID: PMC5363926 DOI: 10.1371/journal.pone.0174197] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/06/2017] [Indexed: 11/19/2022] Open
Abstract
We describe the population structure of a representative collection of 3,133 Mycobacterium tuberculosis isolates, collected within the framework of a national resistance survey from 2007 in China. Genotyping data indicate that the epidemic strains in China can be divided into seven major complexes, of which 92% belonged to the East Asian (mainly Beijing strains) or the Euro-American lineage. The epidemic Beijing strains in China are closely related to the Beijing B0/W148 strain earlier described in Russia and a large cluster of these strains has spread national wide. The density of Beijing strains is high in the whole of China (average 70%), but the highest prevalence was found North of the Yellow river. The Euro-American lineage consists of three sublineages (sublineage_1, 2, and 3) and is more prevalent in the South. Beijing lineage showed the highest cluster rate of 48% and a significantly higher level of resistance to rifampicin (14%, p<0.001), ethambutol (9%, p = 0.001), and ofloxacin (5%, p = 0.011). Within the Euro-American Lineage, sublineage_3 revealed the highest cluster rate (28%) and presented a significantly elevated level of resistance to streptomycin (44%, p<0.001). Our findings suggest that standardised treatment in this region may have contributed to the successful spread of certain strains: sublineage_3 in the Euro-American lineage may have thrived when streptomycin was used without rifampicin for treatment, while later under DOTS based treatment, in which rifampicin plays a key role, Beijing lineage appears to be spreading.
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Affiliation(s)
- Yang Zhou
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Susan van den Hof
- KNCV Tuberculosis Foundation, CC The Hague, The Netherlands
- Department of Global Health, Amsterdam Medical Center, Pietersbergweg 17, BM Amsterdam, The Netherlands
| | - Shengfen Wang
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Yu Pang
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Bing Zhao
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Hui Xia
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Richard Anthony
- National Institute for Public Health and the Environment, the Netherlands,BA Bilthoven, The Netherlands
| | - Xichao Ou
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Qiang Li
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Yang Zheng
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Yuanyuan Song
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
| | - Yanlin Zhao
- Chinese Centre for Disease Control and Prevention, Changping district, Beijing, China, P.R
- * E-mail: (DVS); (YLZ)
| | - Dick van Soolingen
- National Institute for Public Health and the Environment, the Netherlands,BA Bilthoven, The Netherlands
- * E-mail: (DVS); (YLZ)
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Ou X, Shen C, Wang X, Ying H, He X, Hu C. Residual Disease at the Late Course of Intensity Modulated Radiation Therapy in Nasopharyngeal Carcinoma: An Adverse Prognostic Factor and Potential Role of Boost Irradiation and Adjuvant Chemotherapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ou X, Zhou X, Shi Q, Xing X, Yang Y, Jiang W, Hu C. Does an Adequate Dose of Cisplatin Need to Achieve Better Disease Control and Overall Survival in Locally Advanced Nasopharyngeal Carcinoma? Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ou X, Wang S, Dong H, Pang Y, Li Q, Xia H, Qu Y, Zhang Z, Li J, Zhang J, Huan S, Chin DP, Zhao Y. Multicenter evaluation of a real-time loop-mediated isothermal amplification (RealAmp) test for rapid diagnosis of Mycobacterium tuberculosis. J Microbiol Methods 2016; 129:39-43. [PMID: 27425377 DOI: 10.1016/j.mimet.2016.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 10/21/2022]
Abstract
The real-time loop-mediated isothermal amplification (RealAmp) test is a novel technology for rapid diagnosis of Mycobacterium tuberculosis (MTB) from sputum samples. This test has not previously been effectively evaluated. In this study, we assessed the performance of the RealAmp test for tuberculosis (TB) detection among TB suspected patients from three provincial hospitals in China. Each eligible TB suspected patients in Shanghai, Guangzhou, and Shandong provided one sputum specimen each, smear microscopy, liquid culture, and the RealAmp test were performed per patient. A total of 1583 TB suspected patients were enrolled in the study, and 1519 were used for the performance analysis. The sensitivity and specificity of the RealAmp test for MTB detection were calculated using liquid culture as reference method. The sensitivity of RealAmp test in smear-negative and culture-positive patients was 60.08%; the sensitivity in smear-positive and culture-positive patients was 97.09%; and the overall sensitivity in culture-positive patients was 74.88%. The specificity of RealAmp test for MTB detection was 86.50%.
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Affiliation(s)
- Xichao Ou
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shengfen Wang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | | | - Yu Pang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qiang Li
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui Xia
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yan Qu
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | | | | | | | - Shitong Huan
- Bill & Melinda Gates Foundation, China Office, Beijing, China
| | - Daniel P Chin
- Bill & Melinda Gates Foundation, China Office, Beijing, China
| | - Yanlin Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
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