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Inferring Mycobacterium Tuberculosis Drug Resistance and Transmission using Whole-genome Sequencing in a High TB-burden Setting in China
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作者 FAN Yu Feng LIU Dong Xin +11 位作者 CHEN Yi Wang OU Xi Chao MAO Qi Zhi YANG Ting Ting WANG Xi Jiang HE Wen Cong ZHAO Bing LIU Zhen Jiang ABULIMITI Maiweilanjiang AIHEMUTI Maimaitiaili GAO Qian ZHAO Yan Lin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第2期157-169,共13页
Objective China is among the 30 countries with a high burden of tuberculosis(TB)worldwide,and TB remains a public health concern.Kashgar Prefecture in the southern Xinjiang Autonomous Region is considered as one of th... Objective China is among the 30 countries with a high burden of tuberculosis(TB)worldwide,and TB remains a public health concern.Kashgar Prefecture in the southern Xinjiang Autonomous Region is considered as one of the highest TB burden regions in China.However,molecular epidemiological studies of Kashgar are lacking.Methods A population-based retrospective study was conducted using whole-genome sequencing(WGS)to determine the characteristics of drug resistance and the transmission patterns.Results A total of 1,668 isolates collected in 2020 were classified into lineages 2(46.0%),3(27.5%),and 4(26.5%).The drug resistance rates revealed by WGS showed that the top three drugs in terms of the resistance rate were isoniazid(7.4%,124/1,668),streptomycin(6.0%,100/1,668),and rifampicin(3.3%,55/1,668).The rate of rifampicin resistance was 1.8%(23/1,290)in the new cases and 9.4%(32/340)in the previously treated cases.Known resistance mutations were detected more frequently in lineage 2 strains than in lineage 3 or 4 strains,respectively:18.6%vs.8.7 or 9%,P<0.001.The estimated proportion of recent transmissions was 25.9%(432/1,668).Multivariate logistic analyses indicated that sex,age,occupation,lineage,and drug resistance were the risk factors for recent transmission.Despite the low rate of drug resistance,drug-resistant strains had a higher risk of recent transmission than the susceptible strains(adjusted odds ratio,1.414;95%CI,1.023–1.954;P=0.036).Among all patients with drug-resistant tuberculosis(DR-TB),78.4%(171/218)were attributed to the transmission of DR-TB strains.Conclusion Our results suggest that drug-resistant strains are more transmissible than susceptible strains and that transmission is the major driving force of the current DR-TB epidemic in Kashgar. 展开更多
关键词 mycobacterium tuberculosis Whole-genome sequencing(WGS) Transmission Drug resistance XINJIANG
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Molecular Identification of Mycobacterium Strains Responsible of Bovine Tuberculosis Cases in Bobo-Dioulasso Slaughterhouse, Burkina Faso
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作者 Mariétou Konate Aminata Fofana# +2 位作者 Yacouba Kouadima Aboubacar Sidiki Ouattara Adama Sanou 《Advances in Microbiology》 CAS 2024年第2期105-114,共10页
Bovine tuberculosis (bTB) is an endemic zoonosis significantly affects animal health in Burkina Faso. The primary causative agent is Mycobacterium tuberculosis (M. tuberculosis) complex, mainly M. bovis. Cattle are co... Bovine tuberculosis (bTB) is an endemic zoonosis significantly affects animal health in Burkina Faso. The primary causative agent is Mycobacterium tuberculosis (M. tuberculosis) complex, mainly M. bovis. Cattle are considered as natural reservoir of M. bovis. However, in Burkina Faso, the circulation of these strains remains poorly understood and documented. This study aimed to identify and characterize Mycobacterium strains from suspected carcasses during routine meat inspection at Bobo-Dioulasso refrigerated slaughterhouse. A prospective cross-sectional study was conducted from January 2021 to December 2022 on cases of seizures linked to suspected bovine tuberculosis. Microbiological and molecular analyzes were used for mycobacterial strain isolation and characterization. Out of 50 samples, 24% tested positive by microscopy and 12% by culture. Molecular analysis identified 6 strains of Mycobacteria, exclusively Mycobacterium bovis specifically the subspecies bovis (Mycobacterium bovis subsp bovis). In conclusion, M. bovis subsp bovis is the primary agent responsible for bovine tuberculosis in Bobo-Dioulasso. Continuous monitoring of mycobacterial strains is therefore necessary for the effective control of this pathology in the local cattle population. 展开更多
关键词 Bovine tuberculosis mycobacterium bovis Molecular Identification Cattle Population Burkina Faso
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Tuberculosis in the Carcinal Environment in Chad Due to the Mycobacterium Tuberculosis Circulante Complex
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作者 Ahmat Idriss Ahmat Mahamat Tahir Ngaré Hassan +4 位作者 Ngandolo Bongo Nare Richard Mahamat Adanao Adoudou Mbah Ntepe Leonel Javeres Hamidou Yacoubou Ali Mahamat Moussa 《Journal of Biosciences and Medicines》 2024年第2期214-224,共11页
Tuberculosis (TB) is a serious infectious disease and its control is considered a challenge, particularly among vulnerable populations such as prisoners. The prevalence of TB in prisons is an alarming public health pr... Tuberculosis (TB) is a serious infectious disease and its control is considered a challenge, particularly among vulnerable populations such as prisoners. The prevalence of TB in prisons is an alarming public health problem in many countries. The aim of this study is to describe the epidemiology of tuberculosis and the strategies for controlling this disease in the Chadian prison population. During the course of our study, the prevalence of tuberculosis in prisons was 9.64%. The age group between 55 years and over (43.33%) was the most represented in this study, and all patients were men with a frequency of 62.66%. The cross-tabulation of Culture_7H9G and Culture_7H9P showed that out of our total positive sample, we found a total of 87 positive strains and 63 negative strains. Our study shows that it is essential to know the prevalence of tuberculosis in all the country’s prisons. Indeed, this can serve as an indication of the need for action in prisons to reduce TB rates, in particular by improving the structure of prison environments, diagnosing new cases quickly and accurately, identifying drug-resistant strains and implementing effective, direct treatment observed in people with tuberculosis. 展开更多
关键词 mycobacterium PRISON tuberculosis and Chad
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Early Prosthetic Valve Endocarditis with Mycobacterium Tuberculosis after Mitral Valve Replacement: A Case Report
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作者 Papa Amath Diagne Mory Camara +12 位作者 Papa Ousmane Ba Momar Sokhna Diop Moussa Samba Abdou Lahad Mbengue Jean Claude Ndiogou Dione Myriam Bizrane Marième Soda Mbaye Moussa Seck Diop Toudiani Malam Kaka Papa Salmane Ba Papa Adama Dieng Amadou Gabriel Ciss Assane Ndiaye 《World Journal of Cardiovascular Surgery》 2024年第3期33-40,共8页
Background: Tuberculous endocarditis is a rare but serious complication of heart valve replacement surgery. We report the case of a 24-year-old patient, who presented with tuberculous endocarditis after mechanical mit... Background: Tuberculous endocarditis is a rare but serious complication of heart valve replacement surgery. We report the case of a 24-year-old patient, who presented with tuberculous endocarditis after mechanical mitral valve replacement, with a favorable clinical course following anti-tuberculosis treatment. Case Presentation: We report a 24-year-old male patient, admitted to the cardiac surgery department of the Fann Hospital (Dakar, Senegal), for the management of severe mixed (rheumatic and endocarditic) mitral insufficiency with associated tricuspid insufficiency. He had a history of recurrent angina and polyarthralgia in childhood, was hospitalized several times for refractory global cardiac decompensation, and for a suspected infective endocarditis a month before his admission. On admission, the clinical examination revealed signs suggestive of mitral and tricuspid insufficiency. Transthoracic echocardiography revealed severe post-endocarditic mitral insufficiency with A3 amputation, highly mobile 15 mm vegetations on the free edge of the large valve, moderate tricuspid insufficiency, and severe pulmonary artery hypertension. Mechanical mitral valve replacement and tricuspid valve annuloplasty using autologous pericardial strip were performed via median sternotomy. After ten days, the patient presented with global cardiac decompensation associated with a clinico-biological infectious syndrome, and tans-oesophageal echography revealed an abscess at the sinotubular junction, communicating with the aorta. A thoraco-abdomino-pelvic CT scan was done, which revealed a bilateral alveolar-interstitial syndrome with mediastinal lymphadenopathy. Anti-tuberculosis treatment with RHZE was initiated for 06 months. The clinical course was favorable. Conclusion: Tuberculous endocarditis in prostheses is a serious complication of heart valve replacement surgery, which may evolve favorably under medical treatment. 展开更多
关键词 Tuberculous Endocarditis Prosthetic Valve Endocarditis mycobacterium tuberculosis
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Mutation Characteristics of inhA and katG Genes in Isoniazid-Resistant Mycobacterium Tuberculosis Patients in Xinjiang
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作者 Shu-Tao Li Wen-Long Guan He Yang 《Journal of Clinical and Nursing Research》 2024年第1期140-145,共6页
Objective:To analyze the mutation characteristics of inhA and katG genes in isoniazid-resistant Mycobacterium tuberculosis in Xinjiang.Methods:The katG and inhA in 148 strains of isoniazid-resistant Mycobacterium tube... Objective:To analyze the mutation characteristics of inhA and katG genes in isoniazid-resistant Mycobacterium tuberculosis in Xinjiang.Methods:The katG and inhA in 148 strains of isoniazid-resistant Mycobacterium tuberculosis were amplified through fluorescence quantitative PCR,and the amplified products were sequenced and compared.Results:The inhA gene mutation rate of 148 strains of isoniazid-resistant mycobacterium tuberculosis was 13.51%(20/148),among which the inhA gene mutation rate among patients of Han,Uygur,and Kazakh ethnicity were 15.87%,13.21%,and 17.65%,respectively.There was no significant difference in the inhA mutation rate among nationalities(c^(2)=2.897,P>0.05).The mutation rate of the katG gene was 84.46%(125/148),among which the mutation rates of patients of Han,Uyghur,and Kazak ethnicities were 82.54%,84.91%,and 76.47%,respectively.The Hui and other ethnic groups were all affected by the katG gene mutation.There was no significant difference in the mutation rate of the katG gene among different ethnicities(c^(2)=3.772,P>0.05).The mutation rates of the inhA gene in southern Xinjiang,northern Xinjiang,and other provinces were 18.60%,9.28%,and 37.50%,respectively.The mutation rates of the inhA gene in different regions were statistically different(c^(2)=6.381,P<0.05).There was no significant difference in the inhA mutation rate between patients from southern and northern Xinjiang(c^(2)=2.214,P>0.05)and between southern Xinjiang and other provinces(c^(2)=1.424,P>0.05).However,the mutation rate of the inhA gene in patients from other provinces was higher than that in northern Xinjiang(c^(2)=5.539,P<0.05).The mutation rates of the katG gene in southern Xinjiang,northern Xinjiang,and other provinces were 81.40%,87.63%,and 62.50%,respectively.There was no significant difference in the mutation rates of the katG gene among different regions(c^(2)=3.989,P>0.05).Conclusion:katG gene mutation was predominant in isoniazid-resistant tuberculosis patients in Xinjiang Uygur Autonomous Region,and inhA and katG gene mutation were no different among different ethnic groups. 展开更多
关键词 mycobacterium tuberculosis Drug resistance ISONIAZID Gene mutation
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The Retrospective Diagnostic Potential of Gene Xpert MTB/RIF for the Analysis of Formalin-Fixed Paraffin-Embedded Tissue from Extrapulmonary Tuberculosis Patients 被引量:2
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作者 JIA Qing Jun ZENG Mei Chun +8 位作者 CHENG Qing Lin HUANG Yin Yan WU Yi Fei LI Qing Chun WANG Le AI Li Yun FANG Zi Jian CHENG Shi SHU Li Ping 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2023年第3期295-298,共4页
Tuberculosis(TB)is a chronic disease caused by infection with Mycobacterium tuberculosis.Laboratory confirmation of this infection is challenging due to the paucibacillary nature of extrapulmonary tuberculosis(EPTB).
关键词 mtb/RIF tuberculosis tuberculosis
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Comparison of Xpert MTB/RIF, Real Amp, and CPA Tests in Detecting Mycobacterium tuberculosis 被引量:9
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作者 OU Xi Chao LI Hui +7 位作者 LIU Dong Xin XIA Hui MA Xiao Guang WANG Shao Hua WANG Sheng Fen ZHU Yan Kun ZHAO Bing ZHAO Yan Lin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2019年第3期215-219,共5页
Today, tuberculosis (TB) remains a global public health threat associated with significantly high rates of morbidity and mortality. The World Health Organization's (WHO) Global Tuberculosis Report 2018[1] has repo... Today, tuberculosis (TB) remains a global public health threat associated with significantly high rates of morbidity and mortality. The World Health Organization's (WHO) Global Tuberculosis Report 2018[1] has reported that in 2017, 10.0 million people across the world had developed TB diseases that resulted in an estimated 1.6 million deaths, and 889, 000 people developed TB in China that led to 39, 000 TB-related deaths. Therefore, rapid and accurate detection of Mycobacterium tuberculosis (MTB) is important for initiating early treatment and reducing mortality. Traditional diagnostic methods for pulmonary TB incorporate chest radiography and sputum smear microscopy;however, several cases of tuberculosis go undiagnosed because of the low sensitivity of smear microscopy[2]. 展开更多
关键词 COMPARISON Detecting mycobacterium tuberculosis Xpert mtb/RIF
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Characteristics of Mycobacterium tuberculosis serine protease Rv1043c in enzymology and pathogenicity in mice
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作者 TANG Yang-yang CUI Ying-ying +4 位作者 JIANG Yan-yan SHAO Ming-zhu ZANG Xin-xin DANG Guang-hui LIU Si-guo 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2023年第12期3755-3768,共14页
The serine proteases of Mycobacteria tuberculosis(Mtb)are important contributors to the process of bacterial invasion and its pathogenesis.In the present study,we systematically characterized the role of the Rv1043c p... The serine proteases of Mycobacteria tuberculosis(Mtb)are important contributors to the process of bacterial invasion and its pathogenesis.In the present study,we systematically characterized the role of the Rv1043c protein in Mycobacterium infection by purifying the Rv1043c protein in Escherichia coli and constructing a Mycobacterium smegmatis(Msg)strain overexpressing Rv1043c(Msg_Rv1043c).We found that Rv1043c had serine protease activity and localized to the surface of Mtb.We determined that the optimal pH and temperature for the Rv1043c serine protease were 9.0 and 45°C,respectively.Moreover,the serine protease activity of Rv1043c was enhanced by divalent metal ions of Ca^(2+)and Mg^(2+).Site-directed mutagenesis studies demonstrated that the serine 279 residue in Rv1043c plays a catalytic role.Additionally,mouse model studies confirmed that Rv1043c significantly enhanced the survival of Msg in vivo,induced pulmonary injury and lung cell apoptosis,and promoted the release of pro-inflammatory cytokines interleukin-1βand interleukin-6 in mice.This study presents novel insights into the relationship between mycobacterial serine protease and the pathogenesis of the disease. 展开更多
关键词 mycobacterium tuberculosis mycobacterium smegmatis serine protease Rv1043c PATHOGENICITY
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Evaluation of Microsphere-based xMAP Test for gyrA Mutation Identification in Mycobacterium Tuberculosis
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作者 OU Xi Chao ZHAO Bing +8 位作者 SONG Ze Xuan PEI Shao Jun WANG Sheng Fen HE Wen Cong LIU Chun Fa LIU Dong Xin XING Rui Da XIA Hui ZHAO Yan Lin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2023年第4期384-387,共4页
Drug-resistant(DR) tuberculosis(TB) is a growing threat to public health[1]. Fluoroquinolone(FQ) antibiotics have long been used as anti-tuberculosis drugs, and their widespread application has led to the development ... Drug-resistant(DR) tuberculosis(TB) is a growing threat to public health[1]. Fluoroquinolone(FQ) antibiotics have long been used as anti-tuberculosis drugs, and their widespread application has led to the development of resistance in clinical isolates of Mycobacterium tuberculosis complex(MTBC). 展开更多
关键词 tuberculosis drugs mycobacterium
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Characterization of Mutations in Genes Related to Rifampicin and Isoniazid Resistance in Multidrug-resistant Mycobacterium tuberculosis Strains from Hangzhou,China
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作者 HUANG Yin Yan XIE Li +5 位作者 WU Yi Fei JIA Qing Jun CHENG Qing Lin LI Qing Chun AI Li Yun BAI Xue Xin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2023年第9期869-873,共5页
Tuberculosis(TB),caused by the Mycobacterium tuberculosis complex(MTBC),is the 13^(th)leading cause of death and the second leading cause of infectious killer after COVID-19(above HIV and AIDS),according to the World ... Tuberculosis(TB),caused by the Mycobacterium tuberculosis complex(MTBC),is the 13^(th)leading cause of death and the second leading cause of infectious killer after COVID-19(above HIV and AIDS),according to the World Health Organization's 2022 Global TB Report.In 2021,10.6 million people were diagnosed with a new episode of TB and 1.6 million people died as a result. 展开更多
关键词 tuberculosis DEATH mycobacterium
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结核分枝杆菌耐热抗原(MTB-HAg)对γδ T细胞影响的研究进展
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作者 魏婧 袁美丽 +3 位作者 王楚彤 李柏青 许涛 汪洪涛 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2024年第2期186-190,共5页
结核分枝杆菌耐热抗原(MTB-HAg)是从结核分枝杆菌(MTB)减毒菌株H37Ra经121℃,20 min,高温高压处理后从菌体释放到上清液中一种多肽类抗原。γδ T细胞是一类广泛分布于非淋巴组织的非常规T细胞,可分泌肿瘤坏死因子α(TNF-α)、γ干扰素(... 结核分枝杆菌耐热抗原(MTB-HAg)是从结核分枝杆菌(MTB)减毒菌株H37Ra经121℃,20 min,高温高压处理后从菌体释放到上清液中一种多肽类抗原。γδ T细胞是一类广泛分布于非淋巴组织的非常规T细胞,可分泌肿瘤坏死因子α(TNF-α)、γ干扰素(IFN-γ)等细胞因子,在抗MTB感染的免疫应答中发挥重要作用。MTB-HAg可在体外有效刺激γδ T细胞增殖活化,使其更加高效地参与抗结核感染的过程,故MTB-HAg可作为设计新型结核疫苗或药物的潜在靶点。但由于MTB-HAg组成复杂,具体是何种成分刺激γδ T细胞发挥抗MTB感染功能还不清楚。 展开更多
关键词 结核分枝杆菌耐热抗原(mtb-HAg) ΓΔT细胞 增殖 综述
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Involvement of 2'-5'oligoadenylate synthetase-like proteinin the survivalof Mycobacterium tuberculosis avirulent strain in macrophages
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作者 Aikebaier Reheman Xiaojian Cao +8 位作者 Yifan Wang Xi Nie Gang Cao Wei Zhou Bing Yang Yingying Lei Weipan Zhang Muhammad Ahsan Naeem Xi Chen 《Animal Diseases》 CAS 2023年第4期275-285,共11页
Mycobacterium tuberculosis(M.tuberculosis)can replicate in the macrophage by interfering with many host protein functions.While it is far from known these host proteins for controlling M.tuberculosis infection.Herein,... Mycobacterium tuberculosis(M.tuberculosis)can replicate in the macrophage by interfering with many host protein functions.While it is far from known these host proteins for controlling M.tuberculosis infection.Herein,we infected macrophages including THP-1 and Raw264.7 cells with M.tuberculosis and identified the differentially expressed genes(DEGs)in the interferon signaling pathway.Among them,2'-5'oligoadenylate synthetase-like(OASL)underwent the greatest upregulation in M.tuberculosis-infected macrophages.Knockdown of the expression of OASL attenuated M.tuberculosis survival in macrophages.Further,bioinformatics analysis revealed the potential interaction axis of OASL-TAB3-RvO127,which was further validated by the yeast-two-hybrid(Y2H)assay and Co-IP.This interaction axis might regulate the M.tuberculosis survival and proliferation in macrophages.The study reveals a possible role of OASL during M.tuberculosis infection as a target to control its propagation. 展开更多
关键词 mycobacterium tuberculosis INTERFERON Interferon stimulated genes OASL
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Contribution to the Study of Resistance to Anti-Tuberculosis Drugs in the Mycobacterium tuberculosis Complex Isolated at the National Laboratory of Clinical Biology and Public Health in Bangui in the Central African Republic in 2022: Case of Rifampicin
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作者 Clotaire Donatien Rafaï Max Namzeka +7 位作者 Ernest Lango-Yaya Romaric Oscar Tibet Kada Oscar Senzongo Ndimakamoko Serge Henri Gbazi Le Bon Bondom Christian Maucler Pamatika Boniface Koffi Alain Le Faou 《Journal of Tuberculosis Research》 2023年第4期162-172,共11页
Microscopy-positive and drug-resistant pulmonary tuberculosis (MPT+) is one of the most feared diseases due to the cost of its management and the associated mortality. The GeneXpert, a new molecular test, is in greate... Microscopy-positive and drug-resistant pulmonary tuberculosis (MPT+) is one of the most feared diseases due to the cost of its management and the associated mortality. The GeneXpert, a new molecular test, is in greater demand for the diagnosis of MPT+ resistance cases. The application of GeneXpert to new cases of MPT+ is not effective in the country’s TB screening centres. The objective of this study is to assess the contribution of GeneXpert to the determination of MPT+ resistance cases in Bangui. The study was cross-sectional and covered the period from February to July 2022. The diagnosis of tuberculosis was first performed by microscopy with Ziehl Neelsen hot stain. The GeneXpert was then used to test for resistance in the sputum of all patients with positive microscopy. The collected data was entered into Excel 2013 and analysed with Epi Info 3.3.7. We analysed data from 755 patients, 80 of whom had resistance. The 80 patients ranged in age from 6 to 68 years (mean age = 35 years). The prevalence of resistant TB was 10.60% (80/755). Primary resistance accounted for 73.75% and secondary resistance for 26.25%. The age group 20 - 39 years (57.50%), male (72.50%), 8th district (17.50%), people living in couples (53.75%), farmers (13.75%) were the socio-demographic characteristics most affected by resistance. Treatment failure (13.75%), relapses (13.75%), the notion of contagion (28.75%), a history of smoking (40%) and alcohol (61.25%) were the clinical antecedents reported by the patients. Treatment failure and relapse were the variables associated with the occurrence of resistant PMT+ (p 0.05). A considerable proportion of the overall Mycobacterium tuberculosis resistance to anti-tuberculosis drugs (10.60%) was identified by GeneXpert. Treatment failure and relapse were the factors associated with the risk of resistance. 展开更多
关键词 GeneXpert RESISTANCE mycobacterium tuberculosis Bangui
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Value of ultrasound guided biopsy combined with Xpert Mycobacterium tuberculosis/resistance to rifampin assay in the diagnosis of chest wall tuberculosis
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作者 Qing-Hu Yan Jing-Yu Chi +3 位作者 Lei Zhang Feng Xue Jia Cui Hai-Li Kong 《World Journal of Clinical Cases》 SCIE 2023年第28期6698-6706,共9页
BACKGROUND The thoracic wall lesions,particularly chest wall tuberculosis,and chest wall tumors and other pyogenic wall and actinomycetes infections,almost always present as a diagnostic challenge.AIM To explore the v... BACKGROUND The thoracic wall lesions,particularly chest wall tuberculosis,and chest wall tumors and other pyogenic wall and actinomycetes infections,almost always present as a diagnostic challenge.AIM To explore the value of ultrasound-guided biopsy combined with the Xpert Mycobacterium tuberculosis/resistance to rifampin(MTB/RIF)assay to diagnose chest wall tuberculosis.METHODS We performed a retrospective study of patients with chest wall lesions from March 2018 to March 2021.All patients received the ultrasound-guided biopsy for pathology examination,acid-fast Bacillus staining,mycobacterial culture,and Xpert MTB/RIF analysis.The sensitivity,specificity,and area under the curve(AUC)were calculated for these diagnostic tests,either individually or combined.Rifampicin resistance results were compared between the mycobacterial culture and the Xpert MTB/RIF assay.RESULTS In 31 patients with the chest wall lesion biopsy,22 patients were diagnosed with chest wall tuberculosis.Of them,3,6,and 21 patients tested positive for mycobacterial culture,acid-fast stain,and Xpert MTB/RIF assay,respectively.The rifampicin resistance results of the 3 culture-positive patients were consistent with their Xpert MTB/RIF assay results.When considering the sensitivity,specificity,and AUC value,the Xpert MTB/RIF assay(95.5%,88.9%,and 0.92,respectively)was a better choice than the acid-fast Bacillus stain(27.3%,100.0%,and 0.64,respectively)and mycobacterial culture(13.6%,100.0%,0.57,respectively).No complications were reported during the procedure.CONCLUSION Ultrasound guided biopsy combined with Xpert MTB/RIF has high value in the diagnosis of chest wall tuberculosis,and can also detect rifampicin resistance. 展开更多
关键词 tuberculosis ULTRASOUND Puncture biopsy Chest wall tuberculosis Xpert mycobacterium tuberculosis/resistance
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Research progress on the drug action and resistance mechanism in Mycobacterium tuberculosis
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作者 GE Sai SONG Xin-yi +3 位作者 JIANG Hui-yue LI Zhao-yang ZHU Zhuang-yan SUN Man-luan 《Journal of Hainan Medical University》 CAS 2023年第24期58-66,共9页
Tuberculosis(TB)is a chronic infectious disease caused by Mycobacterium Tuberculosis(MTB).It is the second largest single cause of death besides novel coronavirus pneumonia.Along with the abuse of antibiotics and exte... Tuberculosis(TB)is a chronic infectious disease caused by Mycobacterium Tuberculosis(MTB).It is the second largest single cause of death besides novel coronavirus pneumonia.Along with the abuse of antibiotics and extensive use of anti-tuberculosis drugs,multidrug-resistant(MDR)TB,drug-resistant(XDR)TB and totally drug-resistant(TDR)TB became obstacles to the tuberculosis eradication worldwide.According to the World Health Organization(WHO)statistics,China is not only a high burden tuberculosis country in the world,but also a country with a serious epidemic of MDR.Traditional drugs fail to meet the needs of tuberculosis control.Therefore,it is urgent to find new targets of anti-tuberculosis drugs and develop new anti-tuberculosis drugs.Hence,this paper systematically summarizes the mechanism of traditional and newly developed anti-tuberculosis drugs,in which stressing the research progress of drug resistance mechanisms.This work provides us with new insights of new anti-tuberculosis drug developments,and may contribute to a reduction in the harm that tuberculosis brings to society. 展开更多
关键词 Anti-tuberculosis drugs mycobacterium tuberculosis Resistance mechanism Multidrug resistance tuberculosis
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InnowaveDX MTB/RIF对结核分枝杆菌复合群及利福平耐药检测性能的评估 被引量:1
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作者 刘梅 吴霞 +4 位作者 古旭 李娜娜 张万敏 张小可 兰远波 《中国防痨杂志》 CAS CSCD 北大核心 2024年第1期70-74,共5页
目的:评估InnowaveDX MTB/RIF(简称“InnowaveDX”)检测结核分枝杆菌复合群(Mycobacterium tuberculosis complex,MTBC)及MTB利福平耐药性的性能。方法:采用前瞻性研究方法,连续纳入2023年3月1日至6月30日遵义医科大学附属医院具有结核... 目的:评估InnowaveDX MTB/RIF(简称“InnowaveDX”)检测结核分枝杆菌复合群(Mycobacterium tuberculosis complex,MTBC)及MTB利福平耐药性的性能。方法:采用前瞻性研究方法,连续纳入2023年3月1日至6月30日遵义医科大学附属医院具有结核病相关体征/症状,或胸部X线检查结果提示疑似结核病的患者作为研究对象,共纳入104例。其中,93例诊断为结核病(包括68例经病原学阳性确诊,25例病原学阴性经临床诊断确诊),11例临床诊断为非结核病。收集研究对象的痰液、支气管肺泡灌洗液、尿液、淋巴结穿刺液、脑脊液、脓液及胸腔积液,行涂片抗酸杆菌染色镜检、培养、InnowaveDX和GeneXpert MTB/RIF(简称“Xpert”)检测,评价InnowaveDX对结核病和MTB利福平耐药性的检测效能。结果:以病原学及临床诊断结果为参照,InnowaveDX检测结核病的敏感度、特异度、一致率、Kappa值分别为92.5%(86/93)、100.0%(11/11)、93.3%(97/104)、0.72;Xpert检测结核病的敏感度、特异度、一致率、Kappa值分别为93.6%(87/93)、100.0%(11/11)、94.2%(98/104)、0.75。InnowaveDX和Xpert检测痰标本阳性率均为91.5%(65/71),差异无统计学意义(χ^(2)=0.000,P=1.000);检测其他类型标本(支气管肺泡灌洗液、尿液、淋巴结穿刺液、脑脊液、脓液及胸腔积液)阳性率分别为95.5%(21/22)和100.0%(22/22),差异无统计学意义(Fisher精确概率法,P=1.000)。以Xpert检测MTB利福平耐药性结果为参照,InnowaveDX检测MTB利福平耐药的敏感度为97.0%(32/33),特异度为92.2%(47/51),Kappa值为0.88。结论:InnowaveDX对于MTBC具有较好的检测效能,且适用于不同类型的标本,检测MTB利福平耐药性结果与Xpert一致性好。 展开更多
关键词 分枝杆菌 结核 抗药性 细菌 利福平 诊断
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Missed Opportunities for Diagnosing Bacilliferous Pulmonary Tuberculosis by Optical Microscopy versus GeneXpert MTB/RIF in Endemic Areas
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作者 Aba Yapo Thomas Nassoué Dobré Olivia +3 位作者 Yéo Liomehin Monemo Pacome Yapo Matine Tatiana Achi Hoboueu Vincent 《Advances in Infectious Diseases》 2023年第4期652-659,共8页
Objective: To assess the missed opportunities from the diagnosis of bacilliferous pulmonary tuberculosis by optical microscopy compared to GeneXpert MTB/RIF between 2015 and 2019. Methods: This is a retrospective anal... Objective: To assess the missed opportunities from the diagnosis of bacilliferous pulmonary tuberculosis by optical microscopy compared to GeneXpert MTB/RIF between 2015 and 2019. Methods: This is a retrospective analysis of the diagnostic results of bacilliferous pulmonary tuberculosis in patients suspected of pulmonary tuberculosis at their first episode during the period. GeneXpert MTB/RIF (GeneXpert) and optical microscopy (OM) after Ziehl-Neelsen stained smear were performed on each patient’s sputum or gastric tubing fluid sample. Results: Among 341 patients suspected of pulmonary tuberculosis, 229 patients were declared bacilliferous tuberculosis by the two tests (67%), 220 patients by GeneXpert and 95 patients by OM, i.e. 64.5% versus 28% (p i.e. 58.5% of the positive cases detected by the two tests (134/229 patients) and 39.3% of the patients suspected of tuberculosis (134/341 patients). On the other hand, among 95 patients declared positive by OM, the GeneXpert ignored 9 (9.5%), i.e. 4% of all the positive cases detected by the two diagnostic tests (9/229 patients) and 3% of the patients suspected of tuberculosis (9/341 patients). The differences observed between the results of the two tests were statistically significant at the 5% threshold (p Conclusion: This study reveals missed diagnostic opportunities for bacilliferous pulmonary mycobacteriosis, statistically significant with optical microscopy than GeneXpert. The GeneXpert/optical microscopy couple could be a good contribution to the strategies for the elimination of pulmonary tuberculosis in sub-Saharan Africa. 展开更多
关键词 Bacilliferous Pulmonary tuberculosis Missed Opportunity GeneXpert mtb/RIF Optical Microscopy
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Diagnostic Evaluation of GeneXpert MTB/RIF Assay for the Detection of Rifampicin Resistant Mycobacterium tuberculosis among Pulmonary Tuberculosis Patients in Bangladesh 被引量:1
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作者 Hosne Jahan Sanya Tahmina Jhora +4 位作者 Zakir H. Habib Md. Abdullah Yusuf Imtiaz Ahmed Aleya Farzana Rafia Parveen 《Journal of Tuberculosis Research》 2016年第1期55-60,共6页
Background: The emergence of multidrug resistant tuberculosis (MDR-TB) and extensively drug- resistant tuberculosis (XDR-TB) has highlighted the need for early accurate detection and drug susceptibility. Objective: Th... Background: The emergence of multidrug resistant tuberculosis (MDR-TB) and extensively drug- resistant tuberculosis (XDR-TB) has highlighted the need for early accurate detection and drug susceptibility. Objective: The purpose of the present study was to evaluate the accuracy of GeneX-pert MTB/RIF assay for the detection of Mycobacterium tuberculosis and rifampicin resistance. Methodology: This cross sectional study was done in the Department of Microbiology at Sir Salimullah Medical College, Dhaka and National Institute of Chest Disease & Hospital (NIDCH), Dhaka during the period of January 2014 to December 2014 for a period of 1 (one) year. Sputum samples from suspected MDR-TB patients were collected by purposive sampling technique from OPD of Sir Salimullah Medical College (SSMC) and NIDCH. Microscopy, liquid culture in liquid MGIT 960 media and GeneXpert MTB/RIF were done for MTB diagnosis and detection of rifampicin resistance. MGIT 960 media were also used for determination of drug resistance. Result: Liquid culture yielded higher growth (68%) from 100 samples while GeneXpert MTB assay showed similar result (67% positive and 33% negative). Drug susceptibility test in MGIT 960 media showed that out of 68 positive cases Rifampicin resistant cases were 15 (22.05%) whereas GeneXpert MTB assay detected 14 (20.89%) were Rifampicin resistant out of 67 MTB positive samples. When compared to liquid culture the calculated sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV) and accuracy of GeneXpert MTB were 98.52%, 100%, 96.96%, 100% and 99%. Conclusion: GeneXpert MTB/RIF assay is high detection rate of pulmonary tuberculosis and multidrug resistant tuberculosis. 展开更多
关键词 MDR-TB GeneXpert mtb/RIF Liquid Culture Pulmonary tuberculosis
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支气管肺泡灌洗液Xpert MTB/RIF检测在涂阴肺结核诊断中的应用价值
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作者 王利杰 《中国社区医师》 2024年第30期86-88,共3页
目的:分析支气管肺泡灌洗液结核分枝杆菌/利福平耐药实时荧光定量核酸扩增(Xpert MTB/RIF)检测在涂阴肺结核诊断中的应用价值。方法:选择2021年12月—2023年12月新疆生产建设兵团第四师医院收治的疑似涂阴肺结核患者80例作为研究对象,... 目的:分析支气管肺泡灌洗液结核分枝杆菌/利福平耐药实时荧光定量核酸扩增(Xpert MTB/RIF)检测在涂阴肺结核诊断中的应用价值。方法:选择2021年12月—2023年12月新疆生产建设兵团第四师医院收治的疑似涂阴肺结核患者80例作为研究对象,收集其支气管肺泡灌洗液,实施结核分枝杆菌液体培养药敏试验、抗酸染色涂片镜检、Xpert MTB/RIF检测。将结核分枝杆菌液体培养药敏试验结果作为“金标准”,比较抗酸染色涂片镜检、Xpert MTB/RIF检测诊断涂阴肺结核的效能。结果:结核分枝杆菌液体培养药敏试验显示,80例受试者确诊为涂阴肺结核44例。Xpert MTB/RIF检测诊断涂阴肺结核的准确率、灵敏度、阳性预测值、阴性预测值高于抗酸染色涂片镜检(P<0.05),抗酸染色涂片镜检、Xpert MTB/RIF检测诊断涂阴肺结核的特异度比较,差异无统计学意义(P>0.05)。结论:支气管肺泡灌洗液Xpert MTB/RIF检测在涂阴肺结核诊断中的应用价值较高,其诊断效能优于抗酸染色涂片镜检,且检测时间短,值得临床应用。 展开更多
关键词 涂阴肺结核 支气管肺泡灌洗液 Xpert mtb/RIF检测
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Surgical Management of Mitral Valve Infective Endocarditis with Accidental Finding of Open Pulmonary Tuberculosis
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作者 Ahmad Al Khaddour Mohammed Alharthi +8 位作者 Alawab M. Mesallam Mohamed Agawi Mahmoud Ghalwash Ahmed Gotbi Mohamed Abdel Hafez Fouly Marko Samanovic Nelson David Vega Murad El Gharbi Fawaz Altaf 《World Journal of Cardiovascular Surgery》 2024年第5期61-67,共7页
Objective: This case report aimed to highlight intersections of TB and Cardiovasular diseases which carry high morbidity and mortality rates. Methods: We are reporting the surgical management of forty seven years fema... Objective: This case report aimed to highlight intersections of TB and Cardiovasular diseases which carry high morbidity and mortality rates. Methods: We are reporting the surgical management of forty seven years female who had back ground history of IDDM (Insulin dependent diabetic Mellitus), ESRD (End stage renal disease) on HD (haemodialysis) also she had left subclavian artery stenosis, and paroxysmal atrial fibrillation. She was diagnosed with mitral valve infective endocarditis and found accidently to have an open pulmonary tuberculosis (TB) on the day before surgery. Results: She was started on first line anti-TB treatment. She was isolated in her private room and airborne precautions measures applied. The patient underwent a tissue Mitral Valve replacement and tricuspid valve repair annuloplasty. Special precautions were applied in Theatre and on cardiopulmonary bypass Machine guided by KAMC-J disinfection protocol. The patient made good recovery postoperatively. She was discharged well on day 7 post operatively. Conclusion: Intersections of TB and cardiovasular diseases carry high morbidity and mortality rates. Early diagnosis and early anti tuberculosis treatment can surely improve the patient prognosis. Our decontamination and disinfective procedures are recommended. Cases like this should be monitored long term for the development of further cardiovascular complication. 展开更多
关键词 tuberculosis (TB) mycobacterium tuberculosis (mtb) Heater-Cooler and Bypass Machine New York Heart Association (NYHA)
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