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Verma KK, Song XP, Xu L, Huang HR, Liang Q, Seth CS, Li YR. Nano-microplastic and agro-ecosystems: a mini-review. Front Plant Sci 2023; 14:1283852. [PMID: 38053770 PMCID: PMC10694274 DOI: 10.3389/fpls.2023.1283852] [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] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 11/02/2023] [Indexed: 12/07/2023]
Abstract
Plastics' unavoidable and rampant usage causes their trash to be extensively dispersed in the atmosphere and land due to its numerous characteristics. Because of extensive plastic usage and increased manufacturing, there is insufficient recycling and a large accumulation of microplastics (MPs) in the environment. In addition to their wide availability in the soil and atmosphere, micro- and nanoplastics are becoming contaminants worldwide. Agro-ecosystem functioning and plant development are being negatively impacted in several ways by the contamination of the environment and farmland soils with MPs (<5 mm) and nanoplastics (<1 µm). The contributions of some recyclable organic waste and plastic film mulching and plastic particle deposition in agroecosystems may be substantial; therefore, it is crucial to understand any potentially hazardous or undesirable impacts of these pollutants on agroecosystems. The dissolution of bioplastics into micro- and nano-particles (MBPs and NBPs) has not been considered in recent studies, which focus primarily on agro-ecosystems. It is essential to properly understand the distribution, concentration, fate, and main source of MPs, NPS, MBPs, and NBPs in agroecosystems. Based on the limited findings, understanding the knowledge gap of environmental impact from micro and nanoplastic in farming systems does not equate to the absence of such evidence. It reveals the considerations for addressing the gaps to effectively protect global food safety and security in the near future.
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Affiliation(s)
- Krishan K. Verma
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, Guangxi, China
| | - Xiu-Peng Song
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, Guangxi, China
| | - Lin Xu
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, Guangxi, China
| | - Hai-Rong Huang
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, Guangxi, China
| | - Qiang Liang
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, Guangxi, China
| | | | - Yang-Rui Li
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, Guangxi, China
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Verma KK, Song XP, Verma CL, Huang HR, Singh M, Xu L, Wu JM, Khan ZH, Zhang BQ, Li YR. Mathematical modeling of climate and fluoride effects on sugarcane photosynthesis with silicon nanoparticles. Plant Physiol Biochem 2023; 204:108089. [PMID: 37852069 DOI: 10.1016/j.plaphy.2023.108089] [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] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/05/2023] [Accepted: 10/10/2023] [Indexed: 10/20/2023]
Abstract
Fluoride (F-) stress is one of the major environmental pollutant, affecting plant growth, development and production, globally. Acquisition of eco-friendly F- stress reliever seems to be the major concern these days. Consequently, application of engineered nanomaterials (ENMs) has been increasing to improve agri-economy. However, the impact of silicon nanoparticles (Si NPs) on mitigation of F- stress has not been investigated yet. Thus, the present study was conducted to compare their protective roles against F- stress by improving diurnal photosynthetic efficiency of sugarcane plant leaves. An ability of sugarcane (Saccharum officinarum cv. GT44) plants to ameliorate F- toxicity assessed through soil culture medium. After an adaptive growth phase, 45 days old plants select to examine F- mitigative efficacy of silicon nanoparticles (SiNPs: 0, 100, 300 and 500 ppm) on sugarcane plants, irrigated by F- contaminated water (0, 100, 200 and 500 ppm). Our results strongly favour that SiNPs enhanced diurnally leaf photosynthetic gas exchange viz., photosynthesis (∼1.0-29%), stomatal conductance (∼3.0-90%), and transpiration rate (∼0.5-43%), significantly, as revealed by increments in photochemical chlorophyll fluorescence efficiency of PS II linked with performance index and photosynthetic pigments during F- stress. To the best of our knowledge, this is the first investigation to explore the impact of SiNPs improving and/or maintaining the diurnal photosynthetic responses in sugarcane plants in response to F- stress. It may also precisely unlayer action of molecular mechanism(s) mediated by SiNPs, found essential for mitigation of F--toxicity to explore nano-phytoremediation approach for crop improvement and agri-economy as well.
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Affiliation(s)
- Krishan K Verma
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China
| | - Xiu-Peng Song
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China
| | - Chhedi Lal Verma
- Irrigation and Drainage Engineering, ICAR-Central Soil Salinity Research Institute, Regional Research Station, Lucknow, 226005, India
| | - Hai-Rong Huang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China
| | - Munna Singh
- Department of Botany, University of Lucknow, Lucknow, 226 007, India
| | - Lin Xu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China
| | - Jian-Ming Wu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China
| | - Zafar Hayat Khan
- Center for Applied Mathematics of Guangxi, School of Mathematics and Statistics, Nanning Normal University, Nanning, 530 100, China
| | - Bao-Qing Zhang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China.
| | - Yang-Rui Li
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, Guangxi, China.
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Verma KK, Song XP, Singh M, Huang HR, Bhatt R, Xu L, Kumar V, Li YR. Influence of nanosilicon on drought tolerance in plants: An overview. Front Plant Sci 2022; 13:1014816. [PMID: 36531341 PMCID: PMC9751589 DOI: 10.3389/fpls.2022.1014816] [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] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
Insufficient availability of water is a major global challenge that plants face and that can cause substantial losses in plant productivity and quality, followed by complete crop failure. Thus, it becomes imperative to improve crop cultivation/production in unsuitable agricultural fields and integrate modern agri-techniques and nanoparticles (NPs)-based approaches to extend appropriate aid to plants to handle adverse environmental variables. Nowadays, NPs are commonly used with biological systems because of their specific physicochemical characteristics, viz., size/dimension, density, and surface properties. The foliar/soil application of nanosilicon (nSi) has been shown to have a positive impact on plants through the regulation of physiological and biochemical responses and the synthesis of specific metabolites. Reactive oxygen species (ROS) are produced in plants in response to drought/water scarcity, which may enhance the ability for adaptation in plants/crops to withstand adverse surroundings. The functions of ROS influenced by nSi and water stress have been assessed widely. However, detailed information about their association with plants and stress is yet to be explored. Our review presents an update on recent developments regarding nSi and water stress in combination with ROS accumulation for sustainable agriculture and an eco-friendly environment.
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Affiliation(s)
- Krishan K. Verma
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Xiu-Peng Song
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Munna Singh
- Department of Botany, University of Lucknow, Lucknow, India
| | - Hai-Rong Huang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Rajan Bhatt
- Punjab Agricultural University, Regional Research Station, Kapurthala, Punjab, India
| | - Lin Xu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
| | - Vinod Kumar
- Department of Botany, Government Degree College, Ramban, India
| | - Yang-Rui Li
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi, China
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Wu KC, Huang CM, Verma KK, Deng ZN, Huang HR, Pang T, Cao HQ, Luo HB, Jiang SL, Xu L. Transcriptomic responses of Saccharum spontaneum roots in response to polyethylene glycol - 6000 stimulated drought stress. Front Plant Sci 2022; 13:992755. [PMID: 36352884 PMCID: PMC9638123 DOI: 10.3389/fpls.2022.992755] [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] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Drought is the abiotic factor that adversely affects plant growth, development survival, and crop productivity, posing a substantial threat to sustainable agriculture worldwide, especially in warm and dry areas. However, the extent of damage depends upon the crop growth stage, severity and frequency of the stress. In general, the reproductive growth phase is more sensitive to stresses causing a substantial loss in crop productivity. Saccharum spontaneum (L.) is the most variable wild relative of sugarcane with potential for use in sugarcane crop improvement programs. In the present study addresses the transcriptomic analysis of drought stress imposed by polyethylene glycol-6000 (PED-6000; w/v- 25%) on the root tip tissues of S. spontaneum GX83-10. The analysis of microarrays of drought-stressed roots was performed at 0 (CK), 2 (T2), 4 (T4), 8 (T8) and 24 h (T24). The analyzed data were compared with the gene function annotations of four major databases, such as Nr, KOG/COG, Swiss-Prot, and KEGG, and a total of 62,988 single-gene information was obtained. The differently expressed genes of 56237 (T4), 59319 (T8), and 58583 (T24), among which CK obtained the most significant number of expressed genes (35920) as compared to T24, with a total of 53683 trend genes. Gene ontology (GO) and KEGG analysis were performed on the 6 important trends, and a total of 598 significant GO IDs and 42 significantly enriched metabolic pathways. Furthermore, these findings also aid in the selection of novel genes and promoters that can be used to potentially produce crop plants with enhanced stress resistance efficiency for sustainable agriculture.
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Affiliation(s)
- Kai-Chao Wu
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Cheng-Mei Huang
- Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, China
| | - Krishan K. Verma
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Zhi-Nian Deng
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Hai-Rong Huang
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Tian Pang
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Hui-Qing Cao
- Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, China
| | - Hai-Bin Luo
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Sheng-Li Jiang
- Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, China
| | - Lin Xu
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Nanning, China
- Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
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Verma K, Song XP, Yadav G, Degu HD, Parvaiz A, Singh M, Huang HR, Mustafa G, Xu L, Li YR. Impact of Agroclimatic Variables on Proteogenomics in Sugar Cane ( Saccharum spp.) Plant Productivity. ACS Omega 2022; 7:22997-23008. [PMID: 35847309 PMCID: PMC9280927 DOI: 10.1021/acsomega.2c01395] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Sugar cane (Saccharum spp. hybrids) is a major crop for sugar and renewable bioenergy worldwide, grown in arid and semiarid regions. China, the world's fourth-largest sugar producer after Brazil, India, and the European Union, all share ∼80% of the global production, and the remaining ∼20% of sugar comes from sugar beets, mostly grown in the temperate regions of the Northern Hemisphere, also used as a raw material in production of bioethanol for renewable energy. In view of carboxylation strategies, sugar cane qualifies as one of the best C4 crop. It has dual CO2 concentrating mechanisms located in its unique Krantz anatomy, having dimorphic chloroplasts located in mesophylls and bundle sheath cells for integrated operation of C4 and C3 carbon fixation cycles, regulated by enzymes to upgrade/sustain an ability for improved carbon assimilation to acquire an optimum carbon economy by producing enhanced plant biomass along with sugar yield under elevated temperature and strong irradiance with improved water-use efficiency. These superior intrinsic physiological carbon metabolisms encouraged us to reveal and recollect the facts for moving ahead with the molecular approaches to reveal the expression of proteogenomics linked with plant productivity under abiotic stress during its cultivation in specific agrizones globally.
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Affiliation(s)
- Krishan
K. Verma
- Sugarcane
Research Institute, Guangxi Academy of Agricultural Sciences/, Key
Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi
Key Laboratory of Sugarcane Genetic Improvement Nanning, 530007 Guangxi, China
| | - Xiu-Peng Song
- Sugarcane
Research Institute, Guangxi Academy of Agricultural Sciences/, Key
Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi
Key Laboratory of Sugarcane Genetic Improvement Nanning, 530007 Guangxi, China
| | - Garima Yadav
- Department
of Botany, University of Lucknow, Lucknow 226 007, India
| | - Hewan Demissie Degu
- College
of Agriculture, School of Plant and Horticulture Science Plant Biotechnology, Hawassa University, Sidama, Hawassa 05, Ethiopia
| | - Aqsa Parvaiz
- Centre
of Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture FaisalabadFaisalabad 38000, Pakistan
| | - Munna Singh
- Department
of Botany, University of Lucknow, Lucknow 226 007, India
| | - Hai-Rong Huang
- Sugarcane
Research Institute, Guangxi Academy of Agricultural Sciences/, Key
Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi
Key Laboratory of Sugarcane Genetic Improvement Nanning, 530007 Guangxi, China
| | - Ghulam Mustafa
- Centre
of Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture FaisalabadFaisalabad 38000, Pakistan
| | - Lin Xu
- Sugarcane
Research Institute, Guangxi Academy of Agricultural Sciences/, Key
Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi
Key Laboratory of Sugarcane Genetic Improvement Nanning, 530007 Guangxi, China
| | - Yang-Rui Li
- Sugarcane
Research Institute, Guangxi Academy of Agricultural Sciences/, Key
Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi
Key Laboratory of Sugarcane Genetic Improvement Nanning, 530007 Guangxi, China
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Teng TL, Shang YY, Huang HR, Chu NH, Chen ST. [Effects of four efflux pump inhibitors on the activities of clarithromycin against Mycobacterium abscessus]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:468-474. [PMID: 35527462 DOI: 10.3760/cma.j.cn112147-20210923-00669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To detect the effects of four efflux pump inhibitors on the minimum inhibitory concentration of clarithromycin (CLA) against Mycobacterium abscessus (M. abscessus) in vitro, and to explore the role of efflux pump in CLA resistance of M. abscessus. Methods: Four frequently-used efflux pump inhibitors (Carbonyl Cyanide 3-chlorophenylhydrazone, CCCP, N, N'-dicyclohexylcarbodiimide, DCC, Verapamil, VP, Reserpine, RSP) were evaluated in this study. The minimum inhibitory concentration (MIC) values of clarithromycin against M. abscessus reference strain and 60 clinical strains with or without efflux pump inhibitors were detected by Alamar Blue method. Sequence analysis of erm(41) and rrl genes known to be associated with CLA resistance in M. abscessus was performed to analyze the correlation between the effect of efflux pump inhibitors on MIC and mutation of resistance-related genes. Results: CCCP, DCC, VP and RSP could reduce the MIC of M. abscessus to CLA, and the effect of RSP was weaker than the other three efflux pump inhibitors. Among the sixty M. abscessus clinical strains, ten strains were resistant to clarithromycin, seven of which had rrl gene mutation. The CLA resistance rate of smooth phenotype isolates was higher than that of rough phenotype isolates. At 3 day of clarithromycin incubation, the MICs of resistant strains were all reduced by efflux pump inhibitors. Compared with the strains with rrl gene mutation, efflux pump inhibitors had a greater effect on the strains without rrl gene mutation. At 14 day of clarithromycin incubation, 83% of M. abscessus subsp. abscessus, were induced to be resistant, and all of them were T28 sequence type of erm(41). With the occurrence of induced drug resistance, the effect of efflux pump inhibitor on CLA MIC decreased. Efflux pump inhibitors had no statistically significant diffence in the effect of effcux pump inhibitors on CLA MIC levels in different phenotypes of isolates. Conclusions: Efflux pump is involved in the resistance process of M. abscessus to CLA. Efflux pump inhibitors reduce the drug resistance to clarithromycin against M. abscessus in different degrees. The use of efflux pump inhibitors may provide a new way to alleviate the drug resistance of M. abscessus.
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Affiliation(s)
- T L Teng
- Department of Pulmonary and Critical Care Medicine, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Y Y Shang
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - H R Huang
- National Clinical Laboratory on Tuberculosis, Beijing Chest Hospital, Capital Medical University; Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - N H Chu
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - S T Chen
- National Clinical Laboratory on Tuberculosis, Beijing Chest Hospital, Capital Medical University; Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
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Xu L, Deng ZN, Wu KC, Malviya MK, Solanki MK, Verma KK, Pang T, Li YJ, Liu XY, Kashyap BK, Dessoky ES, Wang WZ, Huang HR. Transcriptome Analysis Reveals a Gene Expression Pattern That Contributes to Sugarcane Bud Propagation Induced by Indole-3-Butyric Acid. Front Plant Sci 2022; 13:852886. [PMID: 35371161 PMCID: PMC8969426 DOI: 10.3389/fpls.2022.852886] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/14/2022] [Indexed: 05/30/2023]
Abstract
Sugarcane is a cash crop that plays an integral part in the sugar industry. The Sustainable Sugarcane Initiative (SSI) has been adopted globally, ensuring enough and aiming for more yield, helping increase disease-free sugarcane cultivation. Single-bud seeds could be the best approach for sugarcane cultivation. Indole-3-butyric acid (IBA) is a rooting agent utilized significantly in seedling propagation. Greenhouse experiment results discovered the significant growth promotion in sugarcane seedlings and accumulation of plant hormones at 100 ppm IBA. Next, we performed transcriptomic analysis of sugarcane buds using RNA sequencing and compared their gene expression during root development due to affect of IBA (100 ppm). A total of 113,475 unigenes were annotated with an average length of 836 bp (N50 = 1,536). The comparative RNA-seq study between the control (CK) and IBA-treated (T) buds showed significant differentially expressed unigenes (494 upregulated and 2086 downregulated). The IBA influenced major biological processes including metabolic process, the cellular process, and single-organism process. For cellular component category, cell, cell part, organelle, membrane, and organelle part were mainly affected. In addition, catalytic activity and binding were primarily affected in the molecular function categories. Furthermore, the expression of genes related to plant hormones and signaling pathways was analyzed by qRT-PCR, which was consistent with the RNA-seq expression profile. This study provides new insights into the IBA response to the bud sprouting in sugarcane based on RNA sequencing, and generated information could help further research on breeding improvement of sugarcane.
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Affiliation(s)
- Lin Xu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Zhi-Nian Deng
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Kai-Chao Wu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Mukesh Kumar Malviya
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Manoj Kumar Solanki
- Plant Cytogenetics and Molecular Biology Group, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Krishan K. Verma
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Tian Pang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Yi-Jie Li
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Xiao-Yan Liu
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Brijendra Kumar Kashyap
- Department of Biotechnology Engineering, Institute of Engineering and Technology, Bundelkhand University, Jhansi, India
| | - Eldessoky S. Dessoky
- Department of Plant Genetic Transformation, Agriculture Genetic Engineering Research Institute, Agriculture Research Center, Giza, Egypt
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
| | - Wei-Zan Wang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Hai-Rong Huang
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Area, Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
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8
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Huang HR, Dong Y, Deng Y, Xu YC, Chen MN, Liu Y, Zhang CL. [Analysis of lactate dehydrogenase gene polymorphisms and prediction of B cell epitopes in four human Plasmodium species]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:28-35. [PMID: 35266354 DOI: 10.16250/j.32.1374.2021026] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To analyze the polymorphism of Plasmodium lactate dehydrogenase (pLDH) gene and predict B-cell epitopes in pLDH peptides in four species of human malaria parasites. METHODS The blood samples and epidemiological characteristics were collected from malaria cases in Yunnan Province registered in the National Notifiable Disease Report System. The pLDH genes of four human Plasmodium species were amplified using nested PCR assay and sequenced. The polymorphisms of pLDH genes was analyzed using the software MEGA version 7.0.26 and DnaSP version 5.10, and the B-cell epitopes were predicted in pLDH peptides using the Immune Epitope Database (IEDB). RESULTS The sequences of P. vivax LDH (PvLDH), P. falciparum LDH (PfLDH), P. ovale LDH (PoLDH) and P. malariae LDH (PmLDH) genes were obtained from 153, 29, 17 and 11 blood samples from patients with P. vivax, P. falciparum, P. ovale and P. malariae malaria, respectively, which included 15, 2, 4 and 2 haplotypes and had a nucleotide diversity (π) of 0.104. A high level of intra-species differentiation was seen in the PoLDH gene (π = 0.012), and the π values were all < 0.001 for PvLDH, PfLDH and PmLDH genes. Active regions of B-cell antigen were predicted in the pLDH peptide chain of four human malaria parasites, of 4 to 5 in each chain, and the activity score was approximately 0.430. Among these peptide chains, the "86-PGKSDKEWNRD-96" short-peptide was a B-cell epitope shared by all four species of human malaria parasites, and the "266-GQYGHS (T)-271" short-peptide was present in PvLDH and PoLDH peptide chains, while "212-EEVEGIFDR-220" was only found in the PvLDH peptide chain, and "208-LISDAE-213" was only seen in the PfLDH peptide chain. CONCLUSIONS The PoLDH gene polymorphism may be derived from the weak negative purification selection, while PvLDH, PfLDH and PmLDH genes may maintain a relatively conservative state. There may be two B-cell epitopes "212-EEVEGIFDR-220" and "208-LISDAE-213" in the proximal region of the C terminal in the pLDH peptide chain, which is feasible to differentiate between P. vivax and P. falciparum infections.
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Affiliation(s)
- H R Huang
- Department of Basic Medical Sciences, Clinical College of Anhui Medical University, Hefei, Anhui 230031, China
| | - Y Dong
- Yunnan Institute of Parasitic Diseases Control, Yunnan Centre of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Pu'er, Yunnan 665000, China
| | - Y Deng
- Yunnan Institute of Parasitic Diseases Control, Yunnan Centre of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Pu'er, Yunnan 665000, China
| | - Y C Xu
- Yunnan Institute of Parasitic Diseases Control, Yunnan Centre of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Pu'er, Yunnan 665000, China
| | - M N Chen
- Yunnan Institute of Parasitic Diseases Control, Yunnan Centre of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Pu'er, Yunnan 665000, China
| | - Y Liu
- Yunnan Institute of Parasitic Diseases Control, Yunnan Centre of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Pu'er, Yunnan 665000, China
| | - C L Zhang
- Yunnan Institute of Parasitic Diseases Control, Yunnan Centre of Malaria Research, Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Pu'er, Yunnan 665000, China
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Jiao WW, Wang GR, Sun L, Xiao J, Li JQ, Wang YC, Quan ST, Huang HR, Shen AD. Multiple Cross Displacement Amplification Combined With Real-Time Polymerase Chain Reaction Platform: A Rapid, Sensitive Method to Detect Mycobacterium tuberculosis. Front Microbiol 2022; 12:812690. [PMID: 35003045 PMCID: PMC8733396 DOI: 10.3389/fmicb.2021.812690] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/07/2021] [Indexed: 11/25/2022] Open
Abstract
In this study, we evaluated the diagnostic accuracy of multiple cross displacement amplification (MCDA) combined with real-time PCR platform in pulmonary tuberculosis (PTB) patients. Total 228 PTB patients and 141 non-TB cases were enrolled. Based on the analysis of the first available sample of all participants, MCDA assay showed a higher overall sensitivity (64.0%), with a difference of more than 10% compared with Xpert MTB/RIF (Xpert) assay (51.8%, P < 0.05) and combined liquid and solid culture (47.8%, P < 0.001) for PTB diagnosis. In particular, MCDA assay detected 31 probable TB patients, which notably increased the percentage of confirmed TB from 57.9% (132/228) to 71.5% (163/228). The specificities of microscopy, culture, Xpert and MCDA assay were 100% (141/141), 100% (141/141), 100% (141/141), and 98.6% (139/141), respectively. Among the patients with multiple samples, per patient sensitivity of MCDA assay was 60.5% (52/86) when only the first available sputum sample was taken into account, and the sensitivity increased to 75.6% (65/86) when all samples tested by MCDA assay were included into the analysis. Therefore, MCDA assay established in this study is rapid, accurate and affordable, which has the potential in assisting the accurate and rapid diagnosis of PTB and speed up initiation of TB treatment in settings equipped with real-time PCR platform.
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Affiliation(s)
- Wei-Wei Jiao
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Gui-Rong Wang
- National Tuberculosis Clinical Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Lin Sun
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Jing Xiao
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Jie-Qiong Li
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Ya-Cui Wang
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Shu-Ting Quan
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Hai-Rong Huang
- National Tuberculosis Clinical Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - A-Dong Shen
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China.,Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
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Cao LM, Sun ZX, Makale EC, Du GK, Long WF, Huang HR. Antitumor activity of fucoidan: a systematic review and meta-analysis. Transl Cancer Res 2021; 10:5390-5405. [PMID: 35116386 PMCID: PMC8798841 DOI: 10.21037/tcr-21-1733] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/24/2021] [Accepted: 11/21/2021] [Indexed: 11/06/2022]
Abstract
Objective Methods Results Conclusions
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Affiliation(s)
- Ling-Min Cao
- Department of Epidemiology, School of Public Health, Hainan Medical University, Haikou, China
| | - Zao-Xi Sun
- Department of Surgery, The First Affiliated Hospital, National Clinical Skills Experimental Teaching Demonstration Center, Hainan Medical University, Haikou, China
| | - Emmanuel Costantine Makale
- Department of Surgery, The First Affiliated Hospital, National Clinical Skills Experimental Teaching Demonstration Center, Hainan Medical University, Haikou, China
| | - Guan-Kui Du
- Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou, China
| | - Wen-Fang Long
- Laboratory of Tropical Environment and Health, School of Public Health, Hainan Medical University, Haikou, China
| | - Hai-Rong Huang
- Department of Epidemiology, School of Public Health, Hainan Medical University, Haikou, China
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Malviya MK, Solanki MK, Li CN, Wang Z, Zeng Y, Verma KK, Singh RK, Singh P, Huang HR, Yang LT, Song XP, Li YR. Sugarcane-Legume Intercropping Can Enrich the Soil Microbiome and Plant Growth. Front Sustain Food Syst 2021. [DOI: 10.3389/fsufs.2021.606595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Soil microbes have a direct impact on plant metabolism and health. The current study investigates the comparative rhizobiome between sugarcane monoculture and sugarcane–soybean intercropping. A greenhouse experiment was performed with two treatments: (1) sugarcane monoculture and (2) sugarcane–soybean intercropped. We used a high-throughput sequencing (HTS) platform to analyze the microbial community. We used the 16S rRNA gene and internal transcribed spacer region primers to identify the microbial diversity. HTS results revealed that a total of 2,979 and 124 bacterial and fungal operational taxonomic units (OTUs) were observed, respectively. Microbial diversity results concluded that the intercropping system has a beneficial impact on soil microbes. The highest numbers of bacterial and fungal OTUs were found in the intercropping system, and these results also collaborated with quantitative PCR results. Additionally, intercropped sugarcane plants showed a higher weight of above- and below-ground parts than the monoculture. Soil chemical analysis results also complemented that the intercropping system nourished organic carbon, total nitrogen, and soil enzyme activities. Correlation analysis of the diversity index and abundance concluded that soil nutrient content positively influenced the microbial abundance that improves plant growth. The present study frames out the profound insights of microbial community interaction under the sugarcane–soybean intercropping system. This information could help improve or increase the sugarcane crop production without causing any negative impact on sugarcane plant growth and development.
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Kong YY, Jiang GL, Huang HR, Che NY, Duan HF. [ Mycobacterium xenopi pulmonary disease:report of 3 cases and literature review]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:474-480. [PMID: 34865369 DOI: 10.3760/cma.j.cn112147-20200506-00565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To analyze the clinical manifestations, radiographic characteristics and prognosis of Mycobacterium xenopi pulmonary disease, in order to improve diagnosis and treatment of the disease. Methods: Using "Mycobacterium xenopi, pulmonary disease" as the search term, from February 15, 2007 to February 21, 2021, a total of 1 264 cases were retrieved in the PubMed database. In the Wanfang database, using "Mycobacterium xenopi, pulmonary disease" as the search term, from February 15, 2007 to February 21, 2021, no related document was retrieved. In the CNKI database, "Mycobacterium xenopi, pulmonary disease" was used as the search term, and one relevant case report was retrieved, but did not meet the diagnostic criteria of Mycobacterium xenopi pulmonary disease issued by American Thoracic Society in 2007. The 1 264 cases from the literature and 3 cases of our institution were used for review. Results: Our 3 cases were elderly males complaining of cough and expectoration, and had underlying lung diseases. The imaging examination showed cavitary lesions. All of them had positive sputum smear for acid-fast bacillus and negative Xpert MTB/RIF examination. Mycobacterium xenopi was isolated at least 2 times from sputum samples. Although prescribed with chemotherapy, case 1 and case 2 died 4 years and 2 years later, respectively, after the diagnosis. Case 3 got sputum conversion, symptom improvement and radiographic responses after 30-month chemotherapy. Conclusions: The clinical manifestations of Mycobacterium xenopi pulmonary disease are atypical. For patients with positive sputum smear for acid-fast bacillus and negative Xpert MTB/RIF examination and conventional mycobacterial culture, Mycobacterium xenopi pulmonary disease should be considered. The disease deserves further attention from clinicians due to poor prognosis.
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Affiliation(s)
- Y Y Kong
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - G L Jiang
- Clinical Lab on Tuberculosis, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - H R Huang
- Clinical Lab on Tuberculosis, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - N Y Che
- Department of Pathology, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - H F Duan
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
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Teng TL, Huang HR, Chu NH. [Research progress of high-dose isoniazid in tuberculosis]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:383-386. [PMID: 33832026 DOI: 10.3760/cma.j.cn112147-20200521-00620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Jiang GL, Wang F, Xue Y, Jia JN, Huang HR. [In vitro evaluation of the antibacterial activity of nemonoxacin against Mycobacterium tuberculosis, Mycobacterium intracellulare and Mycobacterium abscessus]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:1061-1065. [PMID: 33333640 DOI: 10.3760/cma.j.cn112147-20200813-00896] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Objective: To test the in vitro antibacterial activity of nemonoxacin against clinically isolates of Mycobacterium tuberculosis complex(MTBC), Mycobacterium intracellulare(MI) and Mycobacterium abscessus(MA). Methods: Totally 128, 80 and 50 isolates of MTBC, M.intracellulare and M.abscessus were tested, respectively. The minimum inhibitory concentrations (MICs) of nemonoxacin and levofloxacin against the strains of the three most frequently isolated mycobacterium species were measured by double dilution method with micro-well plate. Results: The MICs of 104(81.2%) strains of MTBC isolates against levofloxacin were ≤ 1 μg/ml. Whereas 112 (87.5%) strains of MTBC isolates had MICs against nemonoxacin than>1 μg/ml, furthermore, the MICs of 88(68.8%)strains of MTBC isolates against nemonoxacin were≥4 μg/ml. The median MIC of M. intracellulare isolates against levofloxacin and nenofloxacin were 16 and 32 μg/ml, separately, while were 16 μg/ml and 8 μg/ml for M. abscessus, respectively. The ratios of nemonoxacin MIC/levofloxacin MIC of M. abscessus were between 0.125-1.000. Conclusions: Nemonoxacin presented weaker inhibitory activity than levofloxacin against M. tuberculosis, whereas it had better activity than levofloxacin against M. abscessus.
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Affiliation(s)
- G L Jiang
- The National Clinical Laboratory on Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - F Wang
- The National Clinical Laboratory on Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Y Xue
- The National Clinical Laboratory on Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - J N Jia
- The National Clinical Laboratory on Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - H R Huang
- The National Clinical Laboratory on Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
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Jiao WW, Wang Y, Wang GR, Wang YC, Xiao J, Sun L, Li JQ, Wen SA, Zhang TT, Ma Q, Huang HR, Shen AD. Development and Clinical Validation of Multiple Cross Displacement Amplification Combined With Nanoparticles-Based Biosensor for Detection of Mycobacterium tuberculosis: Preliminary Results. Front Microbiol 2019; 10:2135. [PMID: 31572340 PMCID: PMC6753184 DOI: 10.3389/fmicb.2019.02135] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 06/10/2019] [Accepted: 08/30/2019] [Indexed: 11/25/2022] Open
Abstract
Tuberculosis is still a major threat to global public health. Here, a novel diagnosis assay, termed as multiple cross displacement amplification combined with nanoparticle-based lateral flow biosensor (MCDA-LFB), was developed to simultaneously detect IS6110 and IS1081 of Mycobacterium tuberculosis (MTB) in DNA extracted from reference strain H37Rv and clinical samples. The amplification can be finished within 30 min at a fixed temperature (67°C), thus the whole procedure, including rapid template preparation (15 min), isothermal reaction (30 min) and result reporting (2 min), can be completed within 50 min. The limit of detection of multiplex MCDA assay was 10 fg per reaction. By using the multiplex MCDA protocol, cross-reaction with non-mycobacteria and non-tuberculous mycobacteria (NTM) strains was not observed. Among clinically diagnosed TB patients, the sensitivity of liquid culture, Xpert MTB/RIF and multiplex MCDA assay was 42.0% (50/119), 49.6% (59/119), and 88.2% (105/119), respectively. Among culture positive samples, the sensitivity of Xpert MTB/RIF and multiplex MCDA assay was 86.0% (43/50) and 98.0% (49/50), respectively. Among culture negative samples, the sensitivity of Xpert MTB/RIF and multiplex MCDA assay was 23.2% (16/69) and 81.2% (56/69), respectively. The specificity was 100% (60/60) for Xpert MTB/RIF and 98.3% (59/60) for multiplex MCDA. Therefore, the multiplex MCDA assay for MTB detection is rapid, sensitive and easy to use and may be a promising test for early diagnosis of TB.
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Affiliation(s)
- Wei-Wei Jiao
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Yi Wang
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Gui-Rong Wang
- National Tuberculosis Clinical Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Ya-Cui Wang
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jing Xiao
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Lin Sun
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jie-Qiong Li
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Shu-An Wen
- National Tuberculosis Clinical Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Ting-Ting Zhang
- National Tuberculosis Clinical Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Qi Ma
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hai-Rong Huang
- National Tuberculosis Clinical Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - A-Dong Shen
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Disease, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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Yang Y, Zhou YJ, Huang HR, Sun ZX, Shen YM, Sun ZK, Li K, Emmanuel CM. Survival analysis of 198 patients with pancreatic cancer in Hainan, China: A multi-institution prospective study. ASIAN PAC J TROP MED 2019. [DOI: 10.4103/1995-7645.271977] [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: 11/04/2022] Open
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Wang SQ, Jiang GL, Wei GM, Huo FM, Dong LL, Zhao LP, Huang HR, Wang GR. [Antimicrobial susceptibility and genotyping of Mycobacterium intracellulare]. Zhonghua Jie He He Hu Xi Za Zhi 2018; 41:539-543. [PMID: 29996350 DOI: 10.3760/cma.j.issn.1001-0939.2018.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the antimicrobial susceptibility and genotyping of Mycobacterium intracellulare. Methods: A total of 150 M. intracellulare isolates were collected. The susceptibility against 15 antimicrobial agents widely used for treatment of non-tuberculosis mycobacteria (NTM) infections, was tested by broth microdilution assay. Variable number of tandem repeats (VNTR) assay was also performed using the 16-loci genotyping method. Results: The drug susceptibility test revealed that clarithromycin (97.3%, 146/150), moxifloxacin (94.0%, 141/150) and amikacin (90.0%, 135/150) had the best antimicrobial activities in vitro against the M. intracellulare isolates. Secondly, 75.3%(113/150), 64.0%(96/150), 52.7%(79/150) and 8.7%(13/150) of the strains were susceptible to rifampicin, linezolid, capreomycin, and ethambutol, respectively. The MIC(50) and MIC(90) values of the 3 injectable anti-tuberculosis drugs were as follows: amikacin 4 mg/L and 16 mg/L, streptomycin 4 mg/L and 16 mg/L, capreomycin 8 mg/L and 16 mg/L. The MIC(50) and MIC(90) values of the 5 different fluoroquinolones were 0.5 mg/L and 2 mg/L for moxifloxacin , 1 mg/L and 8 mg/L for ciprofloxacin, 1 mg/L and 8ug/ml for levofloxacin, 2 mg/L and 16 mg/L for antoflolxacin, 2 mg/L and 16 mg/L for ofloxacin. The Hunter-Gaston Discriminatory Index (HGDI) value for the 16-loci VNTR typing of M. intracellulare isolates was 0.994. VNTR differentiated the 150 isolates into 21 clusters and acquired a total of 121 unique patterns. Drug resistance profile was not independently associated with cluster strains. Conclusions: Clarithromycin, moxifloxacin and amikacin had the best antimicrobial activities in vitro against M. intracellulare isolates. The 16-loci VNTR typing revealed a highly discriminatory power and drug resistance profile was not independently associated with cluster strains.
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Affiliation(s)
- S Q Wang
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing 101149, China
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Luo JJ, Yu X, Ma YF, Zhao LP, Shang YY, Fu YY, Huang HR. [Evaluation of a high-intensity fluorescent fluorophage method for diagnosis of drug-resistance in tuberculosis]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:755-759. [PMID: 29050130 DOI: 10.3760/cma.j.issn.1001-0939.2017.10.009] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the high-intensity green fluorescent protein fluorophage Φ(2)GFP10 method for drug susceptibility testing of tuberculosis for isoniazid(INH), rifampin(RIF), and streptomycin(SM). Methods: A total of 128 clinical M. tuberculosis strains were isolated from patients with suspected drug-resistant tuberculosis visiting Beijing Chest Hospital (Beijing, China) from April to June 2014.All of the isolates were tested by the phage assay, while conventional drug susceptibility tests were performing on Lwenstein-Jensen culture medium as reference. Results: The sensitivities of Φ(2)GFP10 assay for INH, RIF, and SM resistance detection were 100.0%, 98.1%(53/54), and 92.6%(50/54), respectively, while their specificities were 84.8%(56/66), 91.9%(68/74), and 91.9%(68/74), respectively. The agreement between the phage assay and the conventional assay for detecting INH, RIF, and SM resistance was 0.92, 0.95 and 0.92, respectively. The Φ(2) GFP10-phage assay could be done within 2 days for RIF and SM, and 3 days for INH. Conclusions: The Φ(2)GFP10-phage method for drug susceptibility test is very sensitive and specific. The method has the potential to be a valuable, rapid and economical screening method for detecting drug-resistant tuberculosis.
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Affiliation(s)
- J J Luo
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing 101149, China
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Chen HX, Cai C, Liu JY, Zhang ZG, Yuan M, Jia JN, Sun ZG, Huang HR, Gao JM, Li WM. [Discriminatory power of variable number on tandem repeats loci for genotyping Mycobacterium tuberculosis strains in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2017. [PMID: 28647985 DOI: 10.3760/cma.j.issn.0254-6450.2017.06.021] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Using the standard genotype method, variable number of tandem repeats (VNTR), we constructed a VNTR database to cover all provinces and proposed a set of optimized VNTR loci combinations for each province, in order to improve the preventive and control programs on tuberculosis, in China. Methods: A total of 15 loci VNTR was used to analyze 4 116 Mycobacterium tuberculosis strains, isolated from national survey of Drug Resistant Tuberculosis, in 2007. Hunter-Gaston Index (HGI) was also used to analyze the discriminatory power of each VNTR site. A set combination of 12-VNTR, 10-VNTR, 8-VNTR and 5-VNTR was respectively constructed for each province, based on 1) epidemic characteristics of M. tuberculosis lineages in China, with high discriminatory power and genetic stability. Results: Through the completed 15 loci VNTR patterns of 3 966 strains under 96.36% (3 966/4 116) coverage, we found seven high HGI loci (including QUB11b and MIRU26) as well as low stable loci (including QUB26, MIRU16, Mtub21 and QUB11b) in several areas. In all the 31 provinces, we found an optimization VNTR combination as 10-VNTR loci in Inner Mongolia, Chongqing and Heilongjiang, but with 8-VNTR combination shared in other provinces. Conclusions: It is necessary to not only use the VNTR database for tracing the source of infection and cluster of M. tuberculosis in the nation but also using the set of optimized VNTR combinations in monitoring those local epidemics and M. tuberculosis (genetics in local) population.
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Affiliation(s)
- H X Chen
- Zhejiang Provincial Key Laboratory for Technology, Application of Model Organisms, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China; National Tuberculosis Clinical Laboratory of China, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - C Cai
- The Drug-resistant TB Key Laboratory of Beijing, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - J Y Liu
- Zhejiang Provincial Key Laboratory for Technology, Application of Model Organisms, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China; National Tuberculosis Clinical Laboratory of China, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Z G Zhang
- The Institute of Tuberculosis Prevention and Control of Changping District, Beijing 102200, China
| | - M Yuan
- Yuncheng City Emergency Center, Yuncheng 044000, China
| | - J N Jia
- National Tuberculosis Clinical Laboratory of China, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China; Beijing Municipal Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Z G Sun
- National Tuberculosis Clinical Laboratory of China, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - H R Huang
- National Tuberculosis Clinical Laboratory of China, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - J M Gao
- Zhejiang Provincial Key Laboratory for Technology, Application of Model Organisms, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
| | - W M Li
- National Tuberculosis Clinical Laboratory of China, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China; Beijing Municipal Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing 100069, China
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Li QJ, Jiao WW, Yin QQ, Li YJ, Li JQ, Xu F, Sun L, Xiao J, Qi H, Wang T, Mokrousov I, Huang HR, Shen AD. Positive epistasis of major low-cost drug resistance mutations rpoB531-TTG and katG315-ACC depends on the phylogenetic background of Mycobacterium tuberculosis strains. Int J Antimicrob Agents 2017; 49:757-762. [PMID: 28456705 DOI: 10.1016/j.ijantimicag.2017.02.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 09/29/2016] [Revised: 12/15/2016] [Accepted: 02/04/2017] [Indexed: 11/25/2022]
Abstract
Mycobacterium tuberculosis Beijing genotype strains increasingly circulate in different world regions, either as historical endemic, e.g. in East Asia, or recently imported, e.g. in South America, and this family is regarded as the most successful lineage of the global tuberculosis (TB) epidemic. Here we analysed the transmission capacity of these strains in the context of their phylogenetic background and drug resistance mutations. The study collection included all multidrug resistant (MDR) strains of Beijing genotype isolated in Beijing Chest Hospital, the largest tertiary TB facility in North China, in 2011-2013 (n = 278). Strains were subjected to NTF/IS6110 and 24-loci MIRU-VNTR analysis. Drug resistance mutations were detected in rpoB, katG, inhA and oxyR-ahpC. A total of 58 and 220 strains were assigned to the ancient and modern Beijing sublineages, respectively. 24-MIRU-VNTR clustering was higher in modern versus ancient Beijing strains (35.9% vs. 12.1%; P <0.001). After taking into consideration the presence of rpoB and katG mutations, clustering decreased to 15.9% in modern and 0% in ancient strains. The most frequent combination of mutations (rpoB531-TTG and katG315-ACC) was more prevalent in clustered versus non-clustered isolates in the modern sublineage (23/35 vs. 47/185; P <0.0001). To conclude, a combination of the known low-fitness-cost rpoB531-TTG and katG315-ACC mutations likely facilitates the increased transmission ability of MDR strains of the modern but not ancient Beijing sublineage. Accordingly, positive epistasis of major low-cost drug resistance-conferring mutations is influenced by the phylogenetic background of M. tuberculosis strains.
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Affiliation(s)
- Qin-Jing Li
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Wei-Wei Jiao
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Qing-Qin Yin
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Ying-Jia Li
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Jie-Qiong Li
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Fang Xu
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Lin Sun
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Jing Xiao
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Hui Qi
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Ting Wang
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Igor Mokrousov
- Laboratory of Molecular Epidemiology and Evolutionary Genetics (former Laboratory of Molecular Microbiology), St Petersburg Pasteur Institute, St Petersburg, Russia.
| | - Hai-Rong Huang
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing, China.
| | - A-Dong Shen
- Ministry of Education Key Laboratory of Major Diseases in Children, National Key Discipline of Pediatrics (Capital Medical University), National Clinical Research Center for Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China.
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Yin QQ, Jiao WW, Li QJ, Xu F, Li JQ, Sun L, Li YJ, Huang HR, Shen AD. Prevalence and molecular characteristics of drug-resistant Mycobacterium tuberculosis in Beijing, China: 2006 versus 2012. BMC Microbiol 2016; 16:85. [PMID: 27176471 PMCID: PMC4866484 DOI: 10.1186/s12866-016-0699-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 01/04/2016] [Accepted: 04/29/2016] [Indexed: 11/29/2022] Open
Abstract
Background As the epidemic of MDR-TB and XDR-TB becomes increasingly severe, it is important to determine the clinical characteristics and molecular epidemiology of MDR-TB and XDR-TB. Recently, many studies have shown that clinical features and molecular characteristics of drug-resistant strains vary in different geographical areas, however, further information is needed to assess the dynamic evolution of drug-resistant TB. Comparative studies between different time periods are necessary to elucidate the development of drug-resistant TB. Results A total of 255 and 537 strains were collected from Beijing Chest Hospital in 2006 and in 2012, respectively. Drug-resistance rates and mutations associated with resistance to first-line anti-tuberculosis (TB) drugs were compared. The overall rate of drug resistance among strains of TB in 2012 was 54.4 %, significantly higher than that in 2006 (34.9 %, P < 0.001). Rates of resistance to each first-line drug (isoniazid, rifampicin, streptomycin and ethambutol) and to second-line drug ofloxacin increased significantly from 2006 to 2012. The overall MDR rate also increased significantly from 2006 (14.9 %) to 2012 (27.0 %). The rate of MDR increased significantly between these two time periods in previously treated cases (P = 0.023) but not in new cases (P = 0.073), and the rate of XDR was similar in new cases at the two time periods, but was marginally higher in 2012 in previously treated cases (P = 0.056). Previous treatment was found to be a risk factor for drug-resistant TB, especially for MDR-TB. In addition, the proportion of drug resistant isolates in which katG, the mabA-inhA promoter, oxyR-ahpC intergenic region, rpoB, rpsL, and embB were mutated was similar in 2006 and 2012, however patterns of mutation in these loci were more diverse in 2012 compared to 2006. Conclusions Our data suggests that the prevalence of drug resistant TB remains high in Beijing, China, and that increasing rates of resistance in M. tuberculosis to all anti-TB drugs should be considered when choosing an optimal anti-TB regimen. Moreover, acquired multi-drug resistance may play a primary role in the MDR-TB epidemic in Beijing, China. Consequently, this highlights the importance of an earlier start to effective and supervised treatment in order to reduce the burden of retreatment.
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Affiliation(s)
- Qing-Qin Yin
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Wei-Wei Jiao
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Qin-Jing Li
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Fang Xu
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Jie-Qiong Li
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Lin Sun
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Ying-Jia Li
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Hai-Rong Huang
- National Clinical Laboratory on Tuberculosis, Beijing Key laboratory for Drug-resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing, China.
| | - A-Dong Shen
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China.
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Duan HF, Wang QF, Wang J, Wang J, Huang HR, Chu NH. [Frequency and clinical relevance of rapidly growing mycobacterium isolated from respiratory samples]. Zhonghua Jie He He Hu Xi Za Zhi 2016; 39:113-6. [PMID: 26879615 DOI: 10.3760/cma.j.issn.1001-0939.2016.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To assess the frequency and clinical relevance of rapidly growing mycobacterium (RGM) isolates in a tuberculosis referral center in Beijing, China. METHODS All isolates were identified by using targeted gene sequencing. RESULTS of species identification for 228 nontuberculous Mycobacterium (NTM) isolates from respiratory samples were analyzed, and available medical files of patients from whom NTM were isolated were reviewed retrospectively. Diagnostic criteria for RGM pulmonary disease issued by the American Thoracic Society (ATS) were used to determine clinical relevance. RESULTS Isolates of Mycobacterium abscessus (M.abscessus) and Mycobacterium fortuitum (M.fortuitum) accounted for 28.9% (66 isolates) and 8.8% (20 isolates)of NTM isolates, respectively. Sixty-six M. abscessus isolates from 32 patients had evaluable medical files, including 28 cases diagnosed as definite M. abscessus lung disease, and 4 as probable M. abscessus lung disease. Eight M. fortuitum isolates from 8 cases had evaluable medical files, and all of them were diagnosed as unlikely lung disease. Mycobacteria Growth Indicator Tube (MGIT) was more effective to diagnose M. abscessus lung disease, as compared with Lowestein-Jensen medium (23/24 vs 18/28). CONCLUSIONS RGM is a common NTM in our institute. M. abscessus is mostly associated with RGM lung disease, but M. fortuitum is not.
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Affiliation(s)
- H F Duan
- Department of Tuberculosis, Beijing Chest Hospital Affiliated to Capital Medical University, Beijing Tuberculosis & Thoracic Tumor Research Institute, Beijing 101149, China
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Chen ST, Zhao LP, Dong WJ, Gu YT, Li YX, Dong LL, Ma YF, Qin SB, Huang HR. The Clinical Features and Bacteriological Characterizations of Bone and Joint Tuberculosis in China. Sci Rep 2015; 5:11084. [PMID: 26053666 PMCID: PMC4459174 DOI: 10.1038/srep11084] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [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: 01/15/2015] [Accepted: 05/13/2015] [Indexed: 02/04/2023] Open
Abstract
Bone and Joint tuberculosis (BJTB) constitutes about 10% of total extra-pulmonary TB cases. Since the BJTB is a paucibacillary condition, there has been no systematic study on the bacterial characterization, especially the epidemiological feature. Here we collected the mycobacterial clinical isolates, analyzed the clinical features and the bacteriological characteristics from 113 BJTB cases reported in China. The mean age of the cases was 40.33 years while most of the patients fell into the 20–29 year age group; local pain was the most common onset symptom of BJTB cases; mean time from symptom onset to BJTB diagnosis was 13.16 months. 31 isolates were defined as drug resistant, including 15 multidrug resistant (MDR) and 2 extensively drug resistant (XDR) isolates according to the drug susceptibility test outcomes; after spoligotyping, 87.6% (99/113) isolates were categorized as Beijing family. In contrast to the isolates from pulmonary tuberculosis patients, here the MIRU-VNTR assay did not find anything significant. A prolonged time span for BJTB diagnosis highlights the requirement of paying further attention to BJTB infection in China. This study provides essential insights into the demographic and microbial characteristics of BJTB cases in China.
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Affiliation(s)
- Su-Ting Chen
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Li-Ping Zhao
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Wei-Jie Dong
- Department of Orthopaedics, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing Chest Hospital, Capital Medical University, Beijing China 101149
| | - Yun-Ting Gu
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Yun-Xu Li
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Ling-Ling Dong
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Yi-Feng Ma
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Shi-Bing Qin
- Department of Orthopaedics, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing Chest Hospital, Capital Medical University, Beijing China 101149
| | - Hai-Rong Huang
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
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Liu G, Wang GR, Yu X, Liang Q, Mu J, Shang YY, Ling Y, Zhang HQ, Zheng SH, Huang HR. Bacteriological characterization of a Mycobacterium parascrofulaceum strain isolated from a Chinese pneumonia patient. Int J Infect Dis 2014; 25:82-7. [DOI: 10.1016/j.ijid.2014.01.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 01/24/2014] [Accepted: 01/24/2014] [Indexed: 01/17/2023] Open
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Dai GM, Zhang ZG, Ding PJ, Zhang Q, Wang L, Wang LX, van Soolingen D, Huang HR, Li WM, Li CY. Differences in the population of genetics of Mycobacterium tuberculosis between urban migrants and local residents in Beijing, China. Chin Med J (Engl) 2013; 126:4066-4071. [PMID: 24229675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND Currently, migration has become one of the risk factors of high burden of tuberculosis in China. This study was to explore the influence of mass migration on the dynamics of Mycobacterium (M.) tuberculosis in Beijing, the capital and an urban area of China. METHODS Three hundred and thirty-six M. tuberculosis strains from the Changping district, where the problem of urban migrants was more pronounced than in other Beijing regions, were genotyped by Spoligotyping, large sequence polymorphisms (LSPs 105 and 181), and variable number tandem repeat (VNTR) typing. Based on the genotype data, the phylogeny of the isolates was studied. RESULTS In Changping district, the proportion of Beijing lineage M. tuberculosis isolates amounted to 89.0% (299/336), among which 86.6 % (252) belonged to the modern lineage. The frequency of modern Beijing lineage strains is so high (around 75% (252/336)) that associated risk factors affecting the tuberculosis epidemic cannot be determined. The time to the most recent common ancestor (TMRCA) of the Beijing lineage strains was estimated to be 5073 (95% CI: 4000-6200) years. There was no significant difference in the genetic variation of Beijing isolates from urban migrants and local residents. CONCLUSIONS The clone of modern Beijing lineage M. tuberculosis, which is dominant in the Beijing area, most likely started to expand with the five thousand-year-old Chinese civilization. In the future, with the urbanization in the whole of China, modern Beijing lineage M. tuberculosis may gain the larger geographical spread.
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Affiliation(s)
- Guang-Ming Dai
- National Tuberculosis Clinical Lab of China, Beijing Tuberculosis and Thoracic Tumor Research Institute; Beijing 101149, China
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Huang HR, Cui YX, Sun ZX. [A cross-sectional study on the occupational injuries among fishermen in Haikou, Hainan province]. Zhonghua Liu Xing Bing Xue Za Zhi 2013; 34:855-856. [PMID: 24466603] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Hai-Rong Huang
- Epidemiology Section, Department of Public Health, Hainan Medical College, Haikou 571199, China.
| | - Yuan-Xia Cui
- Epidemiology Section, Department of Public Health, Hainan Medical College, Haikou 571199, China
| | - Zao-Xi Sun
- Epidemiology Section, Department of Public Health, Hainan Medical College, Haikou 571199, China
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Yuan SM, Wang J, Huang HR, Jing H. Osteopontin expression and its possible functions in the aortic disorders and coronary artery disease. Braz J Cardiovasc Surg 2011; 26:173-82. [DOI: 10.1590/s0102-76382011000200006] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2010] [Accepted: 03/01/2011] [Indexed: 11/22/2022] Open
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Wang SF, Zhao YL, Huang HR, Li Q, Zhou Y, Ou XC, Fu YH. [Relationship between Beijing genotypes of Mycobacterium tuberculosis and drug-resistant phenotypes]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2009; 31:427-431. [PMID: 19771728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To investigate the distribution of the Beijing genotypes of Mycobacterium tuberculosis (M. tuberculosis) and the relationships between Beijing genotype strains and drug-resistant phenotypes in China. METHODS Clinical isolates were collected during a 9-month research period from April to December in 2008 in six geographic regions of China. One isolate that had been biochemically confirmed to be a member of the M. tuberculosis complex was collected from each patient. The demographic data of the patients (eg. sex, age, and history of tuberculosis) as well as the drug resistance patterns and sources of the clinical isolates were collected. Drug susceptibility testing was performed using proportion method. Beijing genotypes of M. tuberculosis were identified by spacer oligonucleotide typing or insertion of IS6110 in the genomic dnaA-dnaN locus. RESULTS Among the 410 M. tuberculosis clinical isolates, 67.1% (275/410) isolates were Beijing genotypes of M. tuberculosis. Significantly larger proportions of tuberculosis patients were infected with Beijing genotypes in the northeastern regions of China than that of in the central-western regions (chi2 = 20.50, P = 0.000). No significant associations were found either between Beijing genotype strains and patients' age, sex, or treatment history. Multidrug-resistant isolates and rifampin-resistant isolates were more common among Beijing genotype strains than among non-Beijing strains (P = 0.002, P = 0.005). CONCLUSIONS About two third of the clinical isolates of M. tuberculosis in China are Beijing genotypes. Beijing genotype strains are not correlated with patients' age, sex, treatment history. People living in the northeastern regions of China are more susceptible to Beijing genotypes than those living in the central-western of China. Beijing genotype strains tend to be rifampin-resistant or multidrug-resistant.
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Affiliation(s)
- Sheng-Fen Wang
- National Tuberculosis Reference Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
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Zhang ZD, Li ZH, DU BP, Jia HY, Liu ZQ, Chen X, Huang HR, Xing AY, Gu SX, Ma Y. [Screening and analysis of in vivo induced genes of Mycobacterium tuberculosis]. Zhonghua Yi Xue Za Zhi 2008; 88:189-193. [PMID: 18361819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To screen in vivo induced genes of Mycobacterium tuberculosis and search possible molecular targets of new drugs, vaccines, and early diagnostic methods. METHODS In vivo induced antigen technology (IVIAT) was used in this study. Genomic DNA from M. tuberculosis of the strain H37Rv was extracted. The DNA was partially digested with Sau3A I and the purified fragments were inserted into the pET30a (+), pET30b (+) and pET30c (+) expression vectors to construct a genomic library. The library was induced with IPTG and then was screened with pooled tuberculosis patient sera preabsorbed with in vitro grown M. tuberculosis of the strain H37Rv and Escherichia coli of the strain BL21 (DE3). The inserts of positive clones were sequenced with primer T7 promoter. The sequences were aligned in the genomic database of M. tuberculosis strain H37Rv (http://genolist.pasteur.fr/Tuberculose) to identify the open reading frame (ORF). RESULTS The genomic expression library included 4.3 x 10(4) clones, and more than eighty percent were recombinant plasmids. The library reached the theoretic requirement. The successive adsorptions significantly decreased the anti-M. tuberculosis antibody titer of sera, and no significant difference was found between the last two adsorption groups, suggesting that the antibodies reactive against the M. tuberculosis H37Rv antigens expressed in vitro were removed. After screening of the genomic expression library and searching in the genome database, 51 ORFs were identified and they were classified into 8 categories according to the classification criterion on the website, including 1 virulence gene, 13 cell wall and cell processes genes, 11 intermediary metabolism and respiration genes, 7 lipid metabolism genes, 2 information pathways genes, 3 PE/PPE genes, 12 conserved hypotheticals, and 2 conserved hypotheticals with an orthologue in M. bovis. CONCLUSION Genes expressed specially during human M. tuberculosis infections can be identified with in vivo induced antigen technology. Analysis of these genes identified using IVIAT shows that some genes are related to virulence, some are essential genes for M. tuberculosis, and some encoded proteins have strong immunogenicity, suggesting that some of them can be used as molecular targets of anti-tuberculosis drugs, vaccines, and tuberculosis early diagnosis.
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Affiliation(s)
- Zong-de Zhang
- Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
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Sun ZX, Cui HN, Huang HR, Wang ZW, Yu ZM. Clinical analysis and strategy for unusual types of acute intestinal obstructions. Shijie Huaren Xiaohua Zazhi 2007; 15:2461-2464. [DOI: 10.11569/wcjd.v15.i22.2461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore the clinical characteristics of unusual acute intestinal obstructions, and to improve early diagnosis and treatment in such cases.
METHODS: Patients with unusual acute intestinal obstructions were divided into three groups: children (n = 31), adolescents or adults (n = 13), and elderly (n = 29). The incidence and conditions, acute physiology and chronic health evaluation (APACHE) score, operative rate, mortality, and cure rates of patients with unusual acute intestinal obstructions were analyzed retrospectively using SPSS12.0 statistical software.
RESULTS: There were 122 (94 male, 28 female) unusual cases among 338 patients with acute intestinal obstruction. Among the 31 children, 62 adolescents or adults, and 29 elderly patients, there were 13, 26 and 14, unusual intestinal obstructions, respectively. The visiting time of patients (2.3 ± 1.5 h, 60.0 ± 43.2 h, 84.0 ± 67.2 h, P = 0.000); APACHE score (2.5 ± 1.8, 5.5 ± 3.6, 17.8 ± 5.8, P = 0.000); and cure rates (100%, 95%, 79.3%, P = 0.000) in the children, adolescents or adults, and elderly groups, respectively, showed significant differences. The surgery and mortality rates were 65.6% and 8.0%, respectively.
CONCLUSION: The mortality rate for unusual acute intestinal obstructions is high because of the difficulty of making an early diagnosis and the resulting delay in instituting effective treatment. It is important to correctly evaluate the state of an illness and effectively treat unusual acute intestinal obstructions.
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Sun ZX, Huang HR, Zhou H. Indwelling catheter and conservative measures in the treatment of abdominal compartment syndrome in fulminant acute pancreatitis. World J Gastroenterol 2006; 12:5068-70. [PMID: 16937509 PMCID: PMC4087416 DOI: 10.3748/wjg.v12.i31.5068] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2006] [Revised: 03/05/2006] [Accepted: 03/10/2006] [Indexed: 02/06/2023] Open
Abstract
AIM To study the effect of combined indwelling catheter, hemofiltration, respiration support and traditional Chinese medicine (e.g. Dahuang) in treating abdominal compartment syndrome of fulminant acute pancreatitis. METHODS Patients with fulminant acute pancreatitis were divided randomly into 2 groups of combined indwelling catheter celiac drainage and intra-abdominal pressure monitoring and routine conservative measures group (group 1) and control group (group 2). Routine non-operative conservative treatments including hemofiltration, respiration support, gastrointestinal TCM ablution were also applied in control group patients. Effectiveness of the two groups was observed, and APACHE II scores were applied for analysis. RESULTS On the second and fifth days after treatment, APACHE II scores of group 1 and 2 patients were significantly different. Comparison of effectiveness (abdominalgia and burbulence relief time, hospitalization time) between groups 1 and 2 showed significant difference, as well as incidence rates of cysts formation. Mortality rates of groups 1 and 2 were 10.0% and 20.7%, respectively. For patients in group 1, celiac drainage quantity and intra-abdominal pressure, and hospitalization time were positively correlated (r = 0.552, 0.748, 0.923, P<0.01) with APACHE II scores. CONCLUSION Combined indwelling catheter celiac drainage and intra-abdominal pressure monitoring, short veno-venous hemofiltration (SVVH), gastrointestinal TCM ablution, respiration support have preventive and treatment effects on abdominal compartment syndrome of fulminant acute pancreatitis.
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Affiliation(s)
- Zhao-Xi Sun
- Department of General Surgery, Affiliated Hospital of Hainan Medical College, Haikou 570102, Hainan Province, China.
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Dickson L, Huang HR, Liu L, Matsuura M, Lambowitz AM, Perlman PS. Retrotransposition of a yeast group II intron occurs by reverse splicing directly into ectopic DNA sites. Proc Natl Acad Sci U S A 2001; 98:13207-12. [PMID: 11687644 PMCID: PMC60849 DOI: 10.1073/pnas.231494498] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [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] [Indexed: 11/18/2022] Open
Abstract
Group II introns, the presumed ancestors of nuclear pre-mRNA introns, are site-specific retroelements. In addition to "homing" to unoccupied sites in intronless alleles, group II introns transpose at low frequency to ectopic sites that resemble the normal homing site. Two general mechanisms have been proposed for group II intron transposition, one involving reverse splicing of the intron RNA directly into an ectopic DNA site, and the other involving reverse splicing into a site in RNA followed by reverse transcription and integration of the resulting cDNA by homologous recombination. Here, by using an "inverted-site" strategy, we show that the yeast mtDNA group II intron aI1 retrotransposes by reverse splicing directly into an ectopic DNA site. This same mechanism could account for other previously described ectopic transposition events in fungi and bacteria and may have contributed to the dispersal of group II introns into different genes.
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Affiliation(s)
- L Dickson
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9148, USA
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Zhang M, Huang HR, Liao SM, Gao JY. [Cluster analysis of Dendrobium by RAPD and design of specific primer for Dendrobium candidum]. Zhongguo Zhong Yao Za Zhi 2001; 26:442-7. [PMID: 12776354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
OBJECTIVE To analyze the genetic relationship of Dendrobium and design a specific primer to differentiate Dendrobium candidum effectively. METHOD Random amplified polymorphic DNA (RAPD) technique was used to analyze the genetic relationships of 26 species of Dendrobium and one species of Ephemerantha. Dendrogram was constructed by UPGMA. According to the sequence of DNA fragment selected, Sangon 18 primer had been extended from 3' extreme to 20 bp in order to form a specific primer. RESULT AND CONCLUSION This primer can be used to distinguish Dendrobium candidum from other Dendrobium effectively. Such a technique provides a new way for the identification of Chinese traditional medicines.
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Affiliation(s)
- M Zhang
- College of Life Sciences, Zhejiang University, Hangzhou 310012, Zhejiang, China
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Hung CH, Huang HR, Huang CJ, Huang FL, Chang GD. Purification and cloning of carp nephrosin, a secreted zinc endopeptidase of the astacin family. J Biol Chem 1997; 272:13772-8. [PMID: 9153232 DOI: 10.1074/jbc.272.21.13772] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
We have purified a secreted proteinase of 23 kDa from carp head kidney by sequential column chromatography on a Reactive Blue 72-agarose dye affinity column and an FPLC Mono-P column. The secretion of this proteinase from carp head kidney can be stimulated by high concentrations of potassium. Since the carp proteinase is present mainly in the head kidney, kidney, and spleen (all of which are lymphohematopoietic organs), it is named nephrosin. The carp nephrosin is most sensitive to metal chelators, but not to inhibitors specific for other classes of proteinases. A cDNA clone has been isolated from a carp head kidney cDNA library by immunoscreening with a polyclonal antiserum raised against purified nephrosin. The cloned cDNA is 1086 base pairs in length and has an open reading frame encoding a protein of 273 amino acids, including a 19-amino acid signal peptide and 56-amino acid propeptide. The deduced amino acid sequence shows moderate levels of identity to medaka HCE1 (52.5%), medaka LCE (50.7%), crayfish astacin (33.2%), murine meprin-alpha (34%), and murine meprin-beta (33.5%), all members of the astacin family of zinc endopeptidases. Nephrosin is the first member of the astacin family found in lymphohematopoietic tissues.
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Affiliation(s)
- C H Hung
- Graduate Institute of Biochemical Sciences, National Taiwan University, Taipei 10098, Taiwan
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Kuo WR, Chien CC, Chai CY, Huang HR, Jan YS, Huang YC, Juan KH. Internal jugular phlebectasia. Gaoxiong Yi Xue Ke Xue Za Zhi 1992; 8:503-9. [PMID: 1294766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Phlebectasia, defined as abnormal venous dilation, may occur in a number of different sites. Two cases with definite diagnosis of internal jugular phlebectasia were reported. The first case was a 6-year-old girl with a bulging mass on right neck for 3 years. Angiography and CT scan showed definite diagnosis, and the bulging mass was resected from the internal jugular vein (IJV). The second case was a 66-year-old female patient, also complained of a bulging mass on her right neck. Sonogram and CT scan also showed the same diagnosis. Because it did not bother the patient, she was just under close observation. From the three kinds of diagnostic modalities, we found sonography is an effective technique because of its clarity, safety and low cost.
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Affiliation(s)
- W R Kuo
- Departmant of Pathology, Kaohsiung Medical College, Taiwan, Republic of China
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