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| Registros recuperados: 57 | |
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| BACANELLI, G. M.; OLARTE, L. C.; LEGUIZAMON, G. O. de C.; SILVA, M. R.; RODIGUES, R. A.; PASQUATTI, T. N.; CARNEIRO, P. A.; ETGES, R. N.; ARAUJO, F. R.; VERBISCK, N. V.. |
| bitstream/item/215558/1/COT-146-Final-em-Alta.pdf |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Espectrometria de massa; Mycobacterium tuberculosis. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124539 |
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| Oliva,V. M.; Cezário,G. A. G.; Cocato,R. A.; Marcondes-Machado,J.. |
| The aim of the present study was to analyze the relationship between hematological and biochemical parameters and tuberculosis process activity time according to clinical complaint duration. It was a retrospective study analyzing medical records from 80 pulmonary tuberculosis patients at Botucatu Medical School University Hospital (Botucatu, São Paulo State, Brazil), who were divided into 2 groups according to clinical complaint duration: Group 1 (G1) - up to three months; Group 2 (G2) - over three months. Parameters included: age, gender, bacilloscopy, erythrocyte sedimentation rate (ESR), platelet count, alpha1-globulin, alpha2-globulin, gamma globulin, mucoprotein, alpha1-acid glycoprotein values, and the presence of risk factors such as smoking,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium tuberculosis; Pulmonary tuberculosis; Smoking; Hematolological and biochemical parameters; Erythrocyte sedimentation rate. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000100006 |
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| Salem,Julia Ignez; Carvalho,Clarice Maia; Ogusku,Mauricio Morishi; Maia,Rosália; Ruffino-Netto,Antonio. |
| We elaborated an alternative culture method, which we denominated PKO (initials in tribute of respect to Petroff, Kudoh and Ogawa), for isolating Mycobacterium tuberculosis from sputum for diagnosis of pulmonary tuberculosis (TB), and to compare its performance with the Swab and Petroff methods. For the technique validation, sputum samples from patients suspected of pulmonary TB cases were examined by acid-fast microscopy (direct and concentrated smear), PKO, Swab and Petroff methods. We found that Petroff and PKO methods have parity in the effectiveness of M. tuberculosis isolation. However, by the PKO method, 65% of isolated strains were detected in a period of <FONT FACE=Symbol>£</FONT>15 days, while by the Petroff method the best detection... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diagnostic method; Mycobacterium tuberculosis; PKO; Tuberculosis. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672007000300013 |
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| BOTERO,Luz Elena; DELGADO-SERRANO,Luisa; CEPEDA HERNÁNDEZ,Martha Lucía; DEL PORTILLO OBANDO,Patricia; ZAMBRANO EDER,María Mercedes. |
| During the last decade, there has been increasing awareness of the massive number of microorganisms, collectively known as the human microbiota, that are associated with humans. This microbiota outnumbers the host cells by approximately a factor of ten and contains a large repertoire of microbial genome-encoded metabolic processes. The diverse human microbiota and its associated metabolic potential can provide the host with novel functions that can influence host health and disease status in ways that still need to be analyzed. The microbiota varies with age, with features that depend on the body site, host lifestyle and health status. The challenge is therefore to identify and characterize these microbial communities and use this information to learn how... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 16S rRNA gene; Microbial diversity; Microbiome; Mycobacterium tuberculosis. |
| Ano: 2016 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000100001 |
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| GÓMEZ-CANSINO,ROCIO; GUZMÁN-GUTIÉRREZ,SILVIA LAURA; CAMPOS-LARA,MARÍA GUADALUPE; ESPITIA-PINZÓN,CLARA INES; REYES-CHILPA,RICARDO. |
| ABSTRACT In Mexican Traditional Medicine 187 plant species are used in the treatment of respiratory conditions that may be associated with tuberculosis. In this contribution, we review the ethnobotany, chemistry and pharmacology of 63 species whose extracts have been assayed for antimycobacterial activity in vitro. Among these, the most potent is Aristolochia brevipes (MIC= 12.5 µg/mL), followed by Aristolochia taliscana, Citrus sinensis, Chrysactinia mexicana, Persea americana, and Olea europaea (MIC<64 µg/mL). Other potent extracts (inhibition > 95%, 50 µg/mL) include: Amphipterygium adstringens, Larrea divaricata, and Phoradendron robinsoni. Several active compounds have been identified, the most potent are: Licarin A (isolated from A. taliscana),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculosis; Medicinal plants; Natural products; Mycobacterium tuberculosis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100031 |
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| Araújo-Filho,João Alves de; Vasconcelos-Jr,Arioldo Carvalho; Sousa,Eduardo Martins de; Silveira,Colombina da; Sousa,Patrícia Tavares Pereira de; Severo,Klaus Andrade; Vieira,Ludmila Ferreira; Kipnis,André; Junqueira-Kipnis,Ana Paula. |
| Multidrug-resistant tuberculosis (MDR-TB) is an emerging and worrisome health problem that threatens tuberculosis (TB) control worldwide. The clinical management of MDR-TB is a complex issue associated with the use of multiple drugs for a long period, usually accompanied by side effects and high costs. The objective of this work was to relate cases of MDR-TB occurring in Goiás, a central state of Brazil. We related five cases of MDR-TB, three women and two men. All were pulmonary cases. Three were in their second treatment and two in their first treatment. Surgical pulmonary resection was performed in one case. One death occurred. Lack of adherence, gastric intolerance to anti-TB drugs and poor clinical management were the main aspects related to the... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Tuberculosis; Multidrug-resistant tuberculosis; MDR-TB; Mycobacterium tuberculosis. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000100020 |
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| Davoudi,Setareh; Rasoolinegad,Mehrnaz; Younesian,Masoud; Hajiabdolbaghi,Mahboubeh; Soudbakhsh,Abdolreza; Jafari,Sirous; EmadiKouchak,Hamid; Mehrpouya,Morteza; Lotfi,Hossein. |
| Tuberculosis is the prototype of infections that require a cellular immune response for their control. It has been shown that CD4+ T-lymphocytes are most important in the protective response against Mycobacterium tuberculosis. CD8+ T-lymphocytes are also important for effective T-cell immune response. This study compares CD4+ and CD8+ baseline values in patients with different manifestations of tuberculosis. CD4+ and CD8+ in three groups of patients with tuberculosis (pulmonary, lymphadenitis, meningitis/milliary involvement) and a group of healthy volunteers were enumerated using flowcytometry. Twenty-six patients with pulmonary tuberculosis, 10 with adenitis, 16 with meningitis or milliary tuberculosis and 16 healthy volunteers entered the study. Mean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculosis; Mycobacterium tuberculosis; CD4. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000600008 |
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| Ramsugit,Saiyur; Pillay,Balakrishna; Pillay,Manormoney. |
| Abstract This study was undertaken in order to assess the involvement of Mycobacterium tuberculosis pili (MTP) as an adhesin, invasin, and cytokine inducer in the M. tuberculosis-epithelial cell interaction. A MTP-deficient strain of M. tuberculosis demonstrated a significant reduction of 69.39% (p = 0.047) and 56.20% (p = 0.033) in its ability to adhere to and invade A549 pulmonary epithelial cells, respectively, in comparison with the wild-type strain. Complementation of the MTP-deficient mutant restored its adhesion and invasion capacity back to the wild-type levels. Overall, it was found that similar concentrations of IL-1β, IL-4, IL-6, IL-8, G-CSF, IFN-γ, MCP-1, and TNF-α were induced in A549 cells infected with the MTP-proficient and MTP-deficient... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium tuberculosis; Curli pili; Adhesin; Invasin. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000200160 |
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| Araújo-Filho,João Alves de; Vasconcelos-Jr,Arioldo Carvalho; Sousa,Eduardo Martins de; Silveira,Colombina da; Ribeiro,Elisangela; Kipnis,André; Junqueira-Kipnis,Ana Paula. |
| Extensively drug-resistant tuberculosis (XDR-TB) is an emerging health problem that threatens tuberculosis (TB) control worldwide, since suitable treatment for this disease has not yet been found. We report a case of secondary pulmonary XDR-TB in a 54-year-old, HIV-negative male from Goiânia, Brazil. The patient had long-standing pulmonary tuberculosis (nine years) with extensive bilateral lung damage and had been treated with multiple antituberculosis drugs (self-administered) before XDR-TB diagnosis. The strain of Mycobacterium tuberculosis was resistant to R- rifampicin, H-isoniazid, E-ethambutol, Eto-ethionamide, Ofx-ofloxacin, and Am-amikacin. This patient died with multiple organ failure due to sepsis secondary to bacterial pneumonia. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extensively drug-resistant tuberculosis; XDR-TB; Tuberculosis; Mycobacterium tuberculosis. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000500019 |
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| Matos,Eliana Dias; Lemos,Antônio Carlos Moreira; Bittencourt,Carolina; Mesquita,Cristiane Leite. |
| Anti-tuberculosis drug resistance, particularly multiresistance, is a crucial issue in the control of tuberculosis (TB). This study estimated the prevalence of primary and acquired anti-tuberculosis drug resistance in strains of Mycobacterium tuberculosis isolated from hospitalized patients, to identify the risk factors for resistance, and to evaluate the its impact on hospital mortality for tuberculosis. Strains of Mycobacterium tuberculosis from 217 patients hospitalized for TB were analyzed. Subjects were recruited sequentially at a TB reference hospital in Salvador, Bahia, Brazil from July 2001 to July 2003. Multiresistant (MR) strains were defined as strains resistant to rifampicin and isoniazid. Of a total of 217 strains isolated, 41 (19.0%, 95%CI:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium tuberculosis; Tuberculosis; Resistance; Multiresistance; Hospitals; Bahia-Brazil. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000300007 |
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| Moreira-Oliveira,M.S.; Oliveira,H.B.; Pace,F.; Stehling,E.G.; Rocha,M.M.M.; Aily,D.C.G.; Brocchi,M.; Silveira,W.D.. |
| The objective of this study was to investigate the possible transmission of tuberculosis among 39 inmates with positive Mycobacterium tuberculosis smears in four correctional institutions located in Campinas City, SP, Brazil over a 19-month period. Fifty-one M. tuberculosis isolates from these inmates were characterized according to the number of IS6110 insertion elements present in their genomic DNA. The number of insertion elements in M. tuberculosis isolates varied from two to twelve. The dendrogram of similarity resulted in the grouping the isolates in six main clusters. These results, associated to epidemiological data, suggested the transmission of tuberculosis among inmates of the same and different institutions inmates. Univariate analysis of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium tuberculosis; Transmission; Molecular genotyping; Campinas; SP; Brazil. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000600009 |
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| Café Oliveira,Luita Nice; Muniz-Sobrinho,Jairo da Silva; Viana-Magno,Luiz Alexandre; Oliveira Melo,Sônia Cristina; Macho,Antonio; Rios-Santos,Fabrício. |
| Abstract Multidrug-resistant tuberculosis (MDRTB) is a serious world health problem that limits public actions to control tuberculosis, because the most used anti-tuberculosis first-line drugs fail to stop mycobacterium spread. Consequently, a quick detection through molecular diagnosis is essential to reduce morbidity and medical costs. Despite the availability of several molecular-based commercial-kits to diagnose multidrug-resistant tuberculosis, their diagnostic value might diverge worldwide since Mycobacterium tuberculosis genetic variability differs according to geographic location. Here, we studied the predictive value of four common mycobacterial mutations in strains isolated from endemic areas of Brazil. Mutations were found at the frequency of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomarkers; Diagnosis; Multidrug-resistance; Mycobacterium tuberculosis. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000200166 |
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| Hung,Hung-Chang; Chan,Chi-Ho; Tsao,Shih-Ming; Chen,Shiuan-Chih; Wu,Tzu-Chin; Lu,Min-Chi; Wu,Der-Jinn; Huang,Shu-Ju; Lee,Yuan-Ti. |
| OBJECTIVE: The diagnostic efficacy of the BDProbeTEC ET Mycobacterium tuberculosis (MTB) complex direct detection assay (DTB) performed on bronchoalveolar lavage (BAL) specimens and sputum smears was compared with acid-fast bacilli (AFB) smear microscopy. METHOD: AFB smear microscopy, DTB and culture results of 286 patients with pulmonary tuberculosis were retrospectively reviewed. A total of 120 patients provided expectorated sputum samples, and 166 patients provided BAL specimens. Culture results and clinical diagnosis were used as gold standards. RESULTS: The sensitivity and specificity of the DTB assay in detecting MTB in sputum specimens was significantly higher compared to AFB smear microscopy (83.7% and 82.4%, vs. 75.6%, and 41.2%, respectively).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bronchoalveolar lavage; Mycobacterium tuberculosis; Acid-fast bacilli staining; Molecular diagnosis; BDProbeTEC ET system. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000300005 |
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| Chen,Jun; Chen,Zhifei; Li,Yuanyuan; Xia,Wei; Chen,Xi; Chen,Tian; Zhou,Liping; Xu,Bin; Xu,Shunqing. |
| OBJECTIVE: The study aimed to investigate gyrA and gyrB mutations in Mycobacterium tuberculosis (MTB) clinical strains from 93 patients with pulmonary tuberculosis in Hubei Province, China, and analyze the association between mutation patterns of the genes and ofloxacin resistance level. RESULTS: Among 93 MTB clinical isolates, 61 were ofloxacin-resistant by the proportion method, and 32 were ofloxacin-susceptible MDR-TB. No mutation in the gyrB gene was found in any MTB strains. In the 61 ofloxacin-resistant isolates, 54 mutations were observed in the gyrA gene. Only one mutation in the gyrA gene was found in ofloxacin-susceptible MDR-TB isolates. In this study, the mutation patterns of gyrA involved seven patterns of single codon mutation (A90V, S91P,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium tuberculosis; Fluoroquinolones; DNA mutational analysis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000200005 |
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| Prasad,Polu Giri; Jasmine,Mohammad Shaik; kanta,Kota Neela Mani; Deepthi,Karumanchi; Allam,Uday Sankar. |
| ABSTRACT Purpose and objectives Detection of drug resistance plays a crucial role in tuberculosis (TB) treatment and prevention of Mycobacterium tuberculosis (MTB) transmission. The aim of this study was to determine the levels and patterns of resistance of MTB isolates to two key anti-TB drugs (rifampicin, RIF and isoniazid, INH) and the type of mutations in drug resistance genes (rpoB, katG and inhA) of the isolates at the southern coastal region of Andhra Pradesh, India, using commercially available GenoType MTBDRplus assay under the Revised National TB Control Program. Methods GenoType MTBDRplus assay was performed on 2859 sputum smear-positive samples and the mutations in the genes responsible for resistance (rpoB, katG and inhA) were analyzed.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Multidrug resistance; Mycobacterium tuberculosis; MTBDRplus assay; Mutations; Molecular detection. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000500281 |
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| Registros recuperados: 57 | |
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