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Arriaga MB, Rocha MS, Nogueira BMF, Nascimento V, Araújo-Pereira M, Souza AB, Andrade AMS, Costa AG, Gomes-Silva A, Silva EC, Figueiredo MC, Turner MM, Durovni B, Lapa-e-Silva JR, Kritski AL, Cavalcante S, Rolla VC, Cordeiro-Santos M, Sterling TR, Andrade BB. The Effect of Diabetes and Prediabetes on Mycobacterium tuberculosis Transmission to Close Contacts. J Infect Dis 2021; 224:2064-2072. [PMID: 34008010 PMCID: PMC8672762 DOI: 10.1093/infdis/jiab264] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 05/13/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND It is unknown whether dysglycemia is associated with Mycobacterium tuberculosis transmission. METHODS We assessed epidemiological and clinical characteristics of patients with culture-confirmed pulmonary tuberculosis and their close contacts, enrolled in a multicenter prospective cohort in Brazil. Contacts were investigated at baseline and 6 months after enrollment. QuantiFERON positivity at baseline and conversion (from negative to positive at month 6) were compared between subgroups of contacts according to glycemic status of persons with tuberculosis (PWTB) as diabetes mellitus (DM) or prediabetes. Multivariable mixed-effects logistic regression models were performed to test independent associations with baseline QuantiFERON positive and QuantiFERON conversion. RESULTS There were 592 PWTB (153 DM, 141 prediabetes, 211 normoglycemic) and 1784 contacts, of whom 658 were QuantiFERON-positive at baseline and 106 converters. Multivariable analyses demonstrated that tuberculosis-prediabetes cases, acid-fast bacilli-positive, pulmonary cavities, and living with someone who smoked were independently associated with QuantiFERON positive in contacts at baseline. DM, persistent cough, acid-fast bacilli-positive, and pulmonary cavities in tuberculosis source cases were associated with QuantiFERON conversion. CONCLUSIONS Contacts of persons with pulmonary tuberculosis and dysglycemia were at increased risk of being QuantiFERON positive at baseline or month 6. Increased focus on such close contacts could improve tuberculosis control.
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Affiliation(s)
- María B Arriaga
- Laboratório de Inflamação e Biomarcadores, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | - Michael S Rocha
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil
- Instituto Brasileiro para Investigação da Tuberculose, Fundação José Silveira, Salvador, Brazil
| | - Betânia M F Nogueira
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Brasileiro para Investigação da Tuberculose, Fundação José Silveira, Salvador, Brazil
| | - Vanessa Nascimento
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil
- Instituto Brasileiro para Investigação da Tuberculose, Fundação José Silveira, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
| | - Mariana Araújo-Pereira
- Laboratório de Inflamação e Biomarcadores, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | - Alexandra B Souza
- Fundação Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
| | - Alice M S Andrade
- Laboratório de Inflamação e Biomarcadores, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil
| | - Alysson G Costa
- Fundação Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
| | - Adriano Gomes-Silva
- Laboratório de Pesquisa Clínica em Micobacteriose, Instituto Nacional de Infectologia Evandro Chagas, Fiocruz, Rio de Janeiro, Brazil
| | - Elisangela C Silva
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marina C Figueiredo
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Megan M Turner
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Betina Durovni
- Secretaria Municipal de Saúde do Rio de Janeiro (Clínica da Família Rinaldo Delamare)-Rocinha, Rio de Janeiro, Brazil
| | - José R Lapa-e-Silva
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Afrânio L Kritski
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Solange Cavalcante
- Laboratório de Pesquisa Clínica em Micobacteriose, Instituto Nacional de Infectologia Evandro Chagas, Fiocruz, Rio de Janeiro, Brazil
- Secretaria Municipal de Saúde do Rio de Janeiro (Clínica da Família Rinaldo Delamare)-Rocinha, Rio de Janeiro, Brazil
| | - Valeria C Rolla
- Laboratório de Pesquisa Clínica em Micobacteriose, Instituto Nacional de Infectologia Evandro Chagas, Fiocruz, Rio de Janeiro, Brazil
| | - Marcelo Cordeiro-Santos
- Fundação Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Universidade Nilton Lins, Manaus, Brazil
| | - Timothy R Sterling
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Bruno B Andrade
- Laboratório de Inflamação e Biomarcadores, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Brasileiro para Investigação da Tuberculose, Fundação José Silveira, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
- Curso de Medicina, Universidade Salvador UNIFACS, Laureate University, Salvador, Brazil
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2
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Carvalho ACC, Amorim G, Melo MGM, Silveira AKA, Vargas PHL, Moreira ASR, Rocha MS, Souza AB, Arriaga MB, Araújo-Pereira M, Figueiredo MC, Durovni B, Lapa-E-Silva JR, Cavalcante S, Rolla VC, Sterling TR, Cordeiro-Santos M, Andrade BB, Silva EC, Kritski AL. Pre-Treatment Neutrophil Count as a Predictor of Antituberculosis Therapy Outcomes: A Multicenter Prospective Cohort Study. Front Immunol 2021; 12:661934. [PMID: 34276654 PMCID: PMC8284392 DOI: 10.3389/fimmu.2021.661934] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 06/01/2021] [Indexed: 12/26/2022] Open
Abstract
Background Neutrophils have been associated with lung tissue damage in many diseases, including tuberculosis (TB). Whether neutrophil count can serve as a predictor of adverse treatment outcomes is unknown. Methods We prospectively assessed 936 patients (172 HIV-seropositive) with culture-confirmed pulmonary TB, enrolled in a multicenter prospective cohort study from different regions in Brazil, from June 2015 to June 2019, and were followed up to two years. TB patients had a baseline visit before treatment (month 0) and visits at month 2 and 6 (or at the end of TB treatment). Smear microscopy, and culture for Mycobacterium tuberculosis (MTB) were performed at TB diagnosis and during follow-up. Complete blood counts were measured at baseline. Treatment outcome was defined as either unfavorable (death, treatment failure or TB recurrence) or favorable (cure or treatment completion). We performed multivariable logistic regression, with propensity score regression adjustment, to estimate the association between neutrophil count with MTB culture result at month 2 and unfavorable treatment outcome. We used a propensity score adjustment instead of a fully adjusted regression model due to the relatively low number of outcomes. Results Among 682 patients who had MTB culture results at month 2, 40 (5.9%) had a positive result. After regression with propensity score adjustment, no significant association between baseline neutrophil count (103/mm3) and positive MTB culture at month 2 was found among either HIV-seronegative (OR = 1.06, 95% CI = [0.95;1.19] or HIV-seropositive patients (OR = 0.77, 95% CI = [0.51; 1.20]). Of 691 TB patients followed up for at least 18 months and up to 24 months, 635 (91.9%) were either cured or completed treatment, and 56 (8.1%) had an unfavorable treatment outcome. A multivariable regression with propensity score adjustment found an association between higher neutrophil count (103/mm3) at baseline and unfavorable outcome among HIV-seronegative patients [OR= 1.17 (95% CI= [1.06;1.30]). In addition, adjusted Cox regression found that higher baseline neutrophil count (103/mm3) was associated with unfavorable treatment outcomes overall and among HIV-seronegative patients (HR= 1.16 (95% CI = [1.05;1.27]). Conclusion Increased neutrophil count prior to anti-TB treatment initiation was associated with unfavorable treatment outcomes, particularly among HIV-seronegative patients. Further prospective studies evaluating neutrophil count in response to drug treatment and association with TB treatment outcomes are warranted.
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Affiliation(s)
- Anna Cristina C Carvalho
- Laboratório de Inovações em Terapias, Ensino e Bioprodutos (LITEB), Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.,Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gustavo Amorim
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Mayla G M Melo
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratório de Micobacteriologia Molecular, Faculdade de Medicina e Complexo Hospitalar Hospital Universitário Clementino Fraga Filho-Instituto de Doenças do Tórax da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Karla A Silveira
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratório de Micobacteriologia Molecular, Faculdade de Medicina e Complexo Hospitalar Hospital Universitário Clementino Fraga Filho-Instituto de Doenças do Tórax da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Pedro H L Vargas
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratório de Micobacteriologia Molecular, Faculdade de Medicina e Complexo Hospitalar Hospital Universitário Clementino Fraga Filho-Instituto de Doenças do Tórax da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adriana S R Moreira
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Michael S Rocha
- Multinational Organization Network Sponsoring Translational and Epidemiological Research (MONSTER) Initiative, Salvador, Brazil.,Instituto Brasileiro para Investigação da Tuberculose, Fundação José Silveira, Salvador, Brazil
| | - Alexandra B Souza
- Gerência de Micobacteriologia, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - María B Arriaga
- Multinational Organization Network Sponsoring Translational and Epidemiological Research (MONSTER) Initiative, Salvador, Brazil.,Laboratório de Inflamação e Biomarcadores, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil.,Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | - Mariana Araújo-Pereira
- Multinational Organization Network Sponsoring Translational and Epidemiological Research (MONSTER) Initiative, Salvador, Brazil.,Laboratório de Inflamação e Biomarcadores, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil.,Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | - Marina C Figueiredo
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Betina Durovni
- Secretaria Municipal de Saúde do Rio de Janeiro, Rio de Janeiro, Brazil
| | - José R Lapa-E-Silva
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Valeria C Rolla
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Timothy R Sterling
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Marcelo Cordeiro-Santos
- Gerência de Micobacteriologia, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - Bruno B Andrade
- Multinational Organization Network Sponsoring Translational and Epidemiological Research (MONSTER) Initiative, Salvador, Brazil.,Laboratório de Inflamação e Biomarcadores, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil.,Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil.,Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, United States.,Curso de Medicina, Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil.,Curso de Medicina, Universidade Salvador (UNIFACS), Salvador, Brazil
| | - Elisangela C Silva
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratório de Micobacteriologia Molecular, Faculdade de Medicina e Complexo Hospitalar Hospital Universitário Clementino Fraga Filho-Instituto de Doenças do Tórax da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratório Reconhecer Biologia, Centro de Biociência e Biotecniologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Rio de Janeiro, Brazil
| | - Afrânio L Kritski
- Programa Acadêmico de Tuberculose da Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratório de Micobacteriologia Molecular, Faculdade de Medicina e Complexo Hospitalar Hospital Universitário Clementino Fraga Filho-Instituto de Doenças do Tórax da Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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3
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de Melo MGM, Mesquita EDD, Oliveira MM, da Silva-Monteiro C, Silveira AKA, Malaquias TS, Dutra TCP, Galliez RM, Kritski AL, Silva EC. Imbalance of NET and Alpha-1-Antitrypsin in Tuberculosis Patients Is Related With Hyper Inflammation and Severe Lung Tissue Damage. Front Immunol 2019; 9:3147. [PMID: 30687336 PMCID: PMC6335334 DOI: 10.3389/fimmu.2018.03147] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [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: 10/02/2018] [Accepted: 12/20/2018] [Indexed: 12/16/2022] Open
Abstract
Background: Pulmonary tuberculosis (PTB) can lead to lung tissue damage (LTD) and compromise the pulmonary capacity of TB patients that evolve to severe PTB. The molecular mechanisms involved in LTD during anti-tuberculous treatment (ATT) remain poorly understood. Methods and findings: We evaluated the role of neutrophil extracellular trap (NET) and the occurrence of LTD through chest radiographic images, the microbial load in sputum, and inflammatory serum profile (IL-12p40/p70, IL-8, IL-17A, IL-23, VEGF-A, MMP-1, and -8, galectin-3, citrunillated histone H3—cit-H3, alpha-1-antitrypsin—α1AT, C-reactive protein—CRP and albumin) in a cohort of 82 PTB patients before and after 60 days of ATT. Using univariate analysis, LTD was associated with neutrophilia and increase of several inflammatory proteins involved in the neutrophil-mediated response, being cit-H3 the more related to the event. In the multivariate analysis, neutrophilia and cit-H3 appear as directly related to LTD. The analysis of the ROC curve at day 60 presented AUC of 0.97 (95.0% CI 0.95–1). Interestingly, at day 0 of ATT, these biomarkers demonstrated fine relation with LTD showing an AUC 0.92 (95.0% CI 0.86–0.99). Despite of that, the same molecules have no impact in culture conversion during ATT. Conclusions: Our data revealed that NETs may play a key role in the pathway responsible for non-specific inflammation and tissue destruction in PTB. High level of cit-H3 and low level of α1AT was observed in the serum of severe TB patients, suggesting a breakdown in the intrinsic control of NET-driven tissue damage. These data show a new insight to knowledge TB immunopathogenesis, the role of neutrophil and NET pathway. Likewise, we identified possible biomarkers to screening of PTB patients eligible to adjuvants therapies, as anti-inflammatories and alpha-1-antitrypsin.
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Affiliation(s)
| | | | - Martha M Oliveira
- Molecular Mycobacteriology Laboratory, Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Development Center for Technology on Health, CDTS-Fiocruz, Rio de Janeiro, Brazil
| | - Caio da Silva-Monteiro
- Molecular Mycobacteriology Laboratory, Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Anna K A Silveira
- Molecular Mycobacteriology Laboratory, Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thiago S Malaquias
- Molecular Mycobacteriology Laboratory, Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tatiana C P Dutra
- Molecular Mycobacteriology Laboratory, Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rafael M Galliez
- Molecular Mycobacteriology Laboratory, Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Afrânio L Kritski
- Molecular Mycobacteriology Laboratory, Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Tuberculosis Academic Program-Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Elisangela C Silva
- Molecular Mycobacteriology Laboratory, Medical School-Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratory of Biology Recognize, Center of Bioscience and Biotechnology, State University of North Fluminense Darcy Ribeiro, Rio de Janeiro, Brazil
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4
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Silva EC, Abhayawardhana PL, Lygin AV, Robertson CL, Liu M, Liu Z, Schneider RW. Coumestrol Confers Partial Resistance in Soybean Plants Against Cercospora Leaf Blight. Phytopathology 2018; 108:935-947. [PMID: 29451417 DOI: 10.1094/phyto-05-17-0189-r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Although previous research showed that the purple symptom of Cercospora leaf blight (CLB) is associated with lower biomass of Cercospora cf. flagellaris and lower concentrations of cercosporin, a reactive oxygen species producer, as compared with blighted leaves, the hypothesis that the purple symptom is a plant reaction to the pathogen has never been tested. In this study, we demonstrated that high levels of coumestrol (COU) were associated with purple symptoms of CLB and that COU has strong antioxidant activity. Additionally, we found that COU is restricted to the pigmented areas of purple leaves, and the pigmentation is restricted to the adaxial surfaces, suggesting that COU may be acting as a sunscreen. Even though COU is associated with the purple leaf symptom, this coumestan is not the direct cause of discoloration in that COU is colorless. Quantification of chlorophyll a and b and total carotenoids suggested that blighted but not purple or asymptomatic leaves were undergoing photooxidative stress. Because the purple symptom is associated with high COU concentrations, lower biomass of C. cf. flagellaris, and lower cercosporin concentrations, we conclude that the purple symptom is a disease resistance reaction, mediated in part by COU, which provides a high level of antioxidant activity and, hence, partial resistance.
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Affiliation(s)
- E C Silva
- First, second, fourth, and seventh authors, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803; third author, Department of Crop Sciences, University of Illinois, Urbana 61801; and fifth and sixth authors, Medicinal Plant Lab, School of Renewable Natural Resources, Louisiana State University Agricultural Center
| | - P L Abhayawardhana
- First, second, fourth, and seventh authors, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803; third author, Department of Crop Sciences, University of Illinois, Urbana 61801; and fifth and sixth authors, Medicinal Plant Lab, School of Renewable Natural Resources, Louisiana State University Agricultural Center
| | - A V Lygin
- First, second, fourth, and seventh authors, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803; third author, Department of Crop Sciences, University of Illinois, Urbana 61801; and fifth and sixth authors, Medicinal Plant Lab, School of Renewable Natural Resources, Louisiana State University Agricultural Center
| | - C L Robertson
- First, second, fourth, and seventh authors, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803; third author, Department of Crop Sciences, University of Illinois, Urbana 61801; and fifth and sixth authors, Medicinal Plant Lab, School of Renewable Natural Resources, Louisiana State University Agricultural Center
| | - M Liu
- First, second, fourth, and seventh authors, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803; third author, Department of Crop Sciences, University of Illinois, Urbana 61801; and fifth and sixth authors, Medicinal Plant Lab, School of Renewable Natural Resources, Louisiana State University Agricultural Center
| | - Z Liu
- First, second, fourth, and seventh authors, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803; third author, Department of Crop Sciences, University of Illinois, Urbana 61801; and fifth and sixth authors, Medicinal Plant Lab, School of Renewable Natural Resources, Louisiana State University Agricultural Center
| | - R W Schneider
- First, second, fourth, and seventh authors, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge 70803; third author, Department of Crop Sciences, University of Illinois, Urbana 61801; and fifth and sixth authors, Medicinal Plant Lab, School of Renewable Natural Resources, Louisiana State University Agricultural Center
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Sweetland AC, Kritski A, Oquendo MA, Sublette ME, Norcini Pala A, Silva LRB, Karpati A, Silva EC, Moraes MO, Silva JRLE, Wainberg ML. Addressing the tuberculosis-depression syndemic to end the tuberculosis epidemic. Int J Tuberc Lung Dis 2018; 21:852-861. [PMID: 28786792 DOI: 10.5588/ijtld.16.0584] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Tuberculosis (TB) and depression act synergistically via social, behavioral, and biological mechanisms to magnify the burden of disease. Clinical depression is a common, under-recognized, yet treatable condition that, if comorbid with TB, is associated with increased morbidity, mortality, community TB transmission, and drug resistance. Depression may increase risk of TB reactivation, contribute to disease progression, and/or inhibit the physiological response to anti-tuberculosis treatment because of poverty, undernutrition, immunosuppression, and/or negative coping behaviors, including substance abuse. Tuberculous infection and/or disease reactivation may precipitate depression as a result of the inflammatory response and/or dysregulation of the hypothalamic-pituitary-adrenal axis. Clinical depression may also be triggered by TB-related stigma, exacerbating other underlying social vulnerabilities, and/or may be attributed to the side effects of anti-tuberculosis treatment. Depression may negatively impact health behaviors such as diet, health care seeking, medication adherence, and/or treatment completion, posing a significant challenge for global TB elimination. As several of the core symptoms of TB and depression overlap, depression often goes unrecognized in individuals with active TB, or is dismissed as a normative reaction to situational stress. We used evidence to reframe TB and depression comorbidity as the 'TB-depression syndemic', and identified critical research gaps to further elucidate the underlying mechanisms. The World Health Organization's Global End TB Strategy calls for integrated patient-centered care and prevention linked to social protection and innovative research. It will require multidisciplinary approaches that consider conditions such as TB and depression together, rather than as separate problems and diseases, to end the global TB epidemic.
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Affiliation(s)
- A C Sweetland
- Department of Psychiatry, Columbia College of Physicians and Surgeons, New York, New York, USA; New York State Psychiatric Institute, New York, New York, USA
| | - A Kritski
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil TB Research Network (REDE-TB), Rio de Janeiro, Rio de Janeiro, Brazil
| | - M A Oquendo
- Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - M E Sublette
- Department of Psychiatry, Columbia College of Physicians and Surgeons, New York, New York, USA; New York State Psychiatric Institute, New York, New York, USA
| | - A Norcini Pala
- Department of Psychiatry, Columbia College of Physicians and Surgeons, New York, New York, USA; New York State Psychiatric Institute, New York, New York, USA
| | - L R Batista Silva
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Rio de Janeiro, Brazil
| | - A Karpati
- Vital Strategies, New York, New York, USA
| | - E C Silva
- State University of North Fluminense Darcy Ribeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - M O Moraes
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Rio de Janeiro, Brazil
| | - J R Lapa E Silva
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - M L Wainberg
- Department of Psychiatry, Columbia College of Physicians and Surgeons, New York, New York, USA; New York State Psychiatric Institute, New York, New York, USA
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6
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Almeida FM, Ventura TLB, Amaral EP, Ribeiro SCM, Calixto SD, Manhães MR, Rezende AL, Souzal GS, de Carvalho IS, Silva EC, da Silva JA, Carvalho ECQ, Kritski AL, Lasunskaia EB. Hypervirulent Mycobacterium tuberculosis strain triggers necrotic lung pathology associated with enhanced recruitment of neutrophils in resistant C57BL/6 mice. PLoS One 2017; 12:e0173715. [PMID: 28306733 PMCID: PMC5357019 DOI: 10.1371/journal.pone.0173715] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 02/24/2017] [Indexed: 11/18/2022] Open
Abstract
Tuberculosis (TB) is a chronic infectious disease caused by Mycobacterium tuberculosis (Mtb) that in most cases induces irreversible necrosis of lung tissue as a result of excessive inflammatory reactions. The murine model of TB in resistant C57BL/6 mice infected with reference Mtb strains is widely used in TB studies; however, these mice do not show a necrotic pathology, which restricts their use in studies of irreversible tissue damage. Recently, we demonstrated that necrotic lung lesions could be induced in the C57BL/6 mice by highly virulent Mtb strains belonging to the modern Beijing sublineage. However, the pathogenic mechanisms leading to necrosis in this model were not elucidated. In this study, we investigated the dynamics of lung lesions in mice infected with highly virulent Beijing Mtb strain M299, compared with those infected with laboratory Mtb strain H37Rv. The data demonstrate that necrotic lung lesions in mice infected by the strain M299 were associated with enhanced recruitment of myeloid cells, especially neutrophils, and increased levels of proinflammatory cytokines, consistent with exacerbated inflammation. High levels of IFN-γ production contributed to the control of bacterial growth. Further progression to chronic disease was associated with a reduction in the levels of inflammatory mediators in the lungs, the accumulation of foamy macrophages and partial healing of the necrotic tissue by fibrosis. At a late stage of disease, degradation of foamy cells resulted in the liberation of accumulated lipids and persisting bacilli and further activation of inflammation, which promoted lung consolidation. Overall, our studies show that C57BL/6 mice infected with highly virulent Mtb strain may serve as a TB model reproducing an exacerbated inflammatory response in a resistant host to hypervirulent mycobacteria, leading to irreversible necrotic lung lesions.
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Affiliation(s)
- Fabrício M. Almeida
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Thatiana L. B. Ventura
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Eduardo P. Amaral
- Departament of Immunology, Biomedical Science Institute (ICB), University of Sao Paulo, Sao Paulo, Brazil
| | - Simone C. M. Ribeiro
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Sanderson D. Calixto
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Marcelle R. Manhães
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Andreza L. Rezende
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Giliane S. Souzal
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Igor S. de Carvalho
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Elisangela C. Silva
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
- Molecular MIcobacteriology Laboratory, Medicine School, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juliana Azevedo da Silva
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Eulógio C. Q. Carvalho
- Laboratory of Animal Morphology and Pathology, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
| | - Afranio L. Kritski
- Tuberculosis Academic Program, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Elena B. Lasunskaia
- Laboratory of Biology of Recognition, Universidade Estadual do Norte Fluminense, Campos, Rio de Janeiro, Brazil
- * E-mail:
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7
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Lago AF, Gonçalves EC, Silva EC, Menegueti MG, Nicolini EA, Auxiliadora-Martins M, Gastaldi AC, Basile-Filho A. Spontaneous breathing test conducted with and without automatic tube compensation does not differ from a metabolic standpoint. Intensive Care Med Exp 2015. [PMCID: PMC4797871 DOI: 10.1186/2197-425x-3-s1-a668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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8
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Canisso IF, Carvalho GR, Morel MD, Ker PG, Rodrigues AL, Silva EC, Coutinho Da Silva MA. Seminal parameters and field fertility of cryopreserved donkey jack semen after insemination of horse mares. Equine Vet J 2011; 43:179-83. [PMID: 21592212 DOI: 10.1111/j.2042-3306.2010.00130.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
REASONS FOR PERFORMING STUDY As mule production is often concentrated in remote areas of the world, a simplified semen cryopreservation protocol is required. AIM To compare the seminal parameters of cryopreserved donkey semen in lactose-EDTA and lactose-yolk extenders and the fertility rates on horse mares. METHODS TRIAL 1: Sperm total and progressive motility, vigour (scale 0-5), morphology (major and minor defects) and plasma membrane integrity (HOST) were evaluated in 25 ejaculates from 5 donkey jacks immediately after collection (raw), after chilling to 5°C (chilled) and after freezing/thawing. The semen was mixed with skimmed-milk extender, centrifuged, and then re-suspended in lactose-EDTA or lactose-yolk extender. Semen was loaded into 0.5 ml straws and chilled to 5°C for 1 h, after which samples were either evaluated (chilled semen) or placed above liquid nitrogen for 20 min prior to immersion. Seminal parameters were evaluated by ANOVA and Tukey's test. TRIAL 2: Cryopreserved semen from 3 males was used to inseminate 53 mares at 60 oestrous cycles randomly assigned to lactose-yolk (n = 30 cycles) or lactose-EDTA (n = 30 cycles) extenders. Pregnancy diagnosis was performed 15 and 25 days post ovulation. The pregnancy rates were compared using Chi-squared tests. RESULTS TRIAL 1: No significant differences were evident in any seminal parameters between extenders after either chilling or cryopreservation. Total and progressive motility were significantly (P<0.05) lower in cryopreserved semen than raw and chilled semen for both extenders. TRIAL 2: Pregnancy rates did not significantly differ between extenders (lactose-EDTA extender 53.33 and 43.33%; lactose-yolk 50.0 and 46.66% for Days 15 and 25 post ovulation, respectively). CONCLUSIONS Cryopreservation of donkey semen using the simplified lactose-yolk extender resulted in similar seminal parameters and fertility rates when compared to lactose-EDTA extender. POTENTIAL RELEVANCE Lactose-yolk extender may be advocated as a simple, easy to prepare extender, for use in geographically isolated enterprises producing mules throughout the world.
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Affiliation(s)
- I F Canisso
- Equid Breeding Centre, Animal Science Department, Federal University of Viçosa, Minas Gerais Brazil.
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9
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Padoveze MC, Madalosso G, Hadad DJ, Bravo E, Silva EC, Borba HM, Sallas J, Sampaio JLM, Ribeiro JF, Santos MDS, Duarte RS, Gomes SM, Leão SC, Brilhante VR. National evaluation of rapidly growing mycobacteria outbreaks in Brazil. BMC Proc 2011. [PMCID: PMC3239836 DOI: 10.1186/1753-6561-5-s6-p98] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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10
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Araujo JC, Campos AC, Correa MM, Silva EC, Matté MH, Matté GR, Von Sperling M, Chernicharo CAL. Anammox bacteria enrichment and characterization from municipal activated sludge. Water Sci Technol 2011; 64:1428-1434. [PMID: 22179639 DOI: 10.2166/wst.2011.632] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A sustainable option for nitrogen removal is the anaerobic ammonium-oxidizing (anammox) process in which ammonium is oxidized to nitrogen gas with nitrite as electron acceptor. Application of this process, however, is limited by the availability of anammox biomass. In this study, two Brocadia-like anammox phylotypes were successfully enriched, detected and identified from an activated sludge taken from a domestic wastewater treatment plant (Minas Gerais, Brazil) employing a Sequencing Batch Reactor (SBR). The dominant phylotype was closely related to 'Candidatus Brocadia sinica', but one clone seemed to represent a novel species for which we propose the name 'Candidatus Brocadia brasiliensis'. Based on Fluorescence in situ hybridization (FISH) analysis, this enrichment led to a relative population size of 52.7% (±15.6) anammox bacteria after 6 months of cultivation. The cultivation process can be divided into three phases: phase 1 (approximately 25 days) was characterized by heterotrophic denitrification metabolism, phase 2 was the propagation phase and phase 3 (from the 87th day onwards), in which significant anammox activity was detected. A long-term performance of the SBR showed a near perfect removal of nitrite based on the influent NO(2)(-)-N concentration of 61-95 mg L(-1). The average ammonia removal efficiency was 90% with the influent NH(4)(+)-N concentration of 55-82 mg L(-1). Therefore, anammox cultivation and enrichment from activated sludge was possible under a controlled environment within 3 months.
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Affiliation(s)
- J C Araujo
- Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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Araujo JC, Correa MMS, Silva EC, Campos AP, Godinho VM, Von Sperling M, Chernicharo CAL. Investigation of aerobic and anaerobic ammonium-oxidising bacteria presence in a small full-scale wastewater treatment system comprised by UASB reactor and three polishing ponds. Water Sci Technol 2010; 61:737-743. [PMID: 20150711 DOI: 10.2166/wst.2010.955] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This work applied PCR amplification method and Fluorescence in situ hybridisation (FISH) with primers and probes specific for the anammox organisms and aerobic ammonia-oxidising beta-Proteobacteria in order to detect these groups in different samples from a wastewater treatment system comprised by UASB reactor and three polishing (maturation) ponds in series. Seven primer pairs were used in order to detect Anammox bacteria. Positive results were obtained with three of them, suggesting that Anammox could be present in polishing pond sediments. However, Anammox bacteria were not detected by FISH, indicating that they were not present in sediment samples, or they could be present but below FISH detection limit. Aerobic ammonia- and nitrite-oxidising bacteria were verified in water column samples through Most Probable Number (MPN) analysis, but they were not detected in sediment samples by FISH. Ammonia removal efficiencies occurred systematically along the ponds (24, 32, and 34% for polishing pond 1, 2, and 3, respectively) but the major reaction responsible for this removal is still unclear. Some nitrification might have occurred in water samples because some nitrifying bacteria were present. Also Anammox reaction might have occurred because Anammox genes were detected in the sediments, but probably this reaction was too low to be noticed. It is important also to consider that some of the ammonia removal observed might be related to NH(3) stripping, associated with the pH increase resulting from the intensive photosynthetic activity in the ponds (mechanism under investigation). Therefore, it can be concluded that more than one mechanism (or reaction) might be involved in the ammonia removal in the polishing ponds investigated in this study.
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Affiliation(s)
- J C Araujo
- Department of Environmental Technology, Centro Federal de Educação Tecnológica de Minas Gerais (CEFET/MG), Belo Horizonte, Brazil.
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Abstract
Although the injuries of child abuse are many and varied, several types of injuries are common to abuse. Many of these injuries are within the scope of dentistry or easily observed by the dental professional in the course of routine dental treatment. The authors present a case of child abuse with multiple bruises. The child had been spanked in the previous night and the morning of the attendance by his mother. This case emphasized that all practitioners should be vigilant when patients present with abnormal injuries which may be the result of abuse and further investigation should be instigated.
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Affiliation(s)
- J F Santos
- Faculty of Dentistry, Centro Universitario do Triangulo, Uberlandia, MG, Brazil
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13
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Abstract
The aim of the present study was to evaluate the clinical, radiographic and histological characteristics of idiopathic bone cavities from the Oral Pathology archives at Universidade Federal de Minas Gerais. Forty-three cases were retrieved. Age, sex, some radiographic variables and morphological variables measured of the connective tissue, were studied. The results showed the men who developed cavities tended to be younger than women (median 16 years (range 11-48) compared with 18 (12-64)). Radiographically rounded lesions that were single, unilocular, and small were more common in younger patients. While rounded cavities occurred mainly in the anterior region, cavities with interdental scalloping occurred in the posterior area. The median age of the patients with thin connective tissue on the wall of the bony cavity was lower than that of those with a thicker lining. In conclusion, the present study shows that there is a significant relation between age and sex, radiographic and histological variables. These findings may contribute to the diagnosis of idiopathic bone cavities.
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Affiliation(s)
- P F Perdigão
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Abstract
We describe an 8-year-old boy who presented with severe facial swelling. This progressed rapidly and 17 months later he died of gastrointestinal and pulmonary infections. The diagnosis was initially brown tumour associated with hyperparathyroidism, but this was revised in the light of laboratory investigations that were within the reference ranges, and normal appearance of the parathyroids on exploration to that of an extreme case of cherubism that behaved in a locally aggressive manner.
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Affiliation(s)
- E C Silva
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte-MG, Brazil
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15
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Yokoo EM, Valente JG, Sichieri R, Silva EC. Validation and calibration of mercury intake through self-referred fish consumption in riverine populations in Pantanal Mato-grossense, Brazil. Environ Res 2001; 86:88-93. [PMID: 11386746 DOI: 10.1006/enrs.2001.4241] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The objective of most epidemiological studies is to classify/rank people according to their relative quantity of consumption. In the specific case of quantifying fish consumption, in order to assess mercury intake rate, the method used must estimate the individual quantity consumed accurately, or from the self-referred quantity it must be possible to estimate the real consumption-termed calibration. Therefore, the objective of this study was to validate and calibrate the 24-h recall method for assessing the amount of fish consumed to estimate the mercury intake in riverine populations from Baixada Cuiabana, in Pantanal Mato-grossense, Brazil. The weighed dietary method was used as the reference standard, and the validity of the 24-h recall method was assessed using correlation coefficients (r), regression coefficients (beta), and the intraclass correlation coefficient (ICC). The results showed that the ICC, which assesses the agreement level between measures, was a more adequate measure than the correlation coefficient (r). Therefore, the calibration equation was calculated applying a multiple linear regression model using the consumption mean of the second and third days, which presented the highest ICC, stratified by sex and adjusted by age and season variables.
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Affiliation(s)
- E M Yokoo
- Instituto de Medicina Social, Universidade de Estado do Rio de Janeiro, Rua São Francisco Xavier 524, Maracanã, Rio de Joneriro, 20550-040, Brazil
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16
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Meirelles RM, Silva EC, Silva de Moraes RL. Lipid distribution in salivary glands of larvae and adult bees (Hymenoptera: Apidae). Cytobios 2001; 106 Suppl 1:57-66. [PMID: 11534829] [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: 04/16/2023]
Abstract
Cytochemical studies were carried out to establish lipid distribution in the salivary glands of larvae and adult bees, using the imidazole buffer technique. In the duct cells of the larval salivary gland, the reaction was positive in the epicuticle and negative in the glandular lumen. The absence of smooth endoplasmic reticulum and the presence of lipids in the intercellular space suggest that lipids absorbed from the haemolymph could be used in the constitution of the epicuticle, after having been conveyed through the epithelium. In adult workers (new-emerged, nurse and forager workers), the head salivary glands presented a positive reaction in the secretion in glandular lumen, identifying its lipidic nature.
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Affiliation(s)
- R M Meirelles
- Departamento de Ultra-estrutura e Biologia Celular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, RJ, Brasil
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Abstract
Cysticercosis is a condition in which a human acts as the intermediate host of the pork tapeworm Taenia solium. Although cysticercosis is a common disease in some regions of the world and can occur in any body site, oral lesions are rare. This paper reviews the natural history of the disease and reports on seven cases of oral cysticercosis.
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Affiliation(s)
- P E de Souza
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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18
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Abstract
Multiple calcifying hyperplastic dental follicles is a rare condition characterized by multiple unerupted teeth with abundant calcifications and rests of odontogenic epithelium in their enlarged dental follicles. This article describes an additional example of this condition.
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Affiliation(s)
- R S Gomez
- Department of Oral Surgery and Pathology, School of Dentistry, Minas Gerais Federal University, Brazil
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19
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Abstract
Twenty-two cases of ameloblastoma and ten cases of adenomatoid odontogenic tumour (AOT) were analyzed comparatively by the AgNOR technique. Ameloblastomas were distributed into three groups according to their clinical behaviour: primary lesions without recurrences (PLWTR), 5 cases; primary lesions with recurrences (PLWR), 4 cases; and recurrences, 13 cases. The cases were also regrouped according to their histological pattern: follicular (9 cases), plexiform (7 cases), acanthomatous (4 cases) and unicystic (2 cases). Considering histological patterns, there was a significant statistical difference only between follicular and plexiform types. There were no significant differences between the group of ameloblastomas and the group of AOTs or between the three groups of ameloblastomas with different clinical behaviour. Our results strongly suggest that the distinct clinical behaviour of ameloblastomas and AOT is not correlated with their cellular proliferation ratio. Thus, the infiltrative ability of the ameloblastomas is probably not related to the cellular proliferation index of these tumours.
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Affiliation(s)
- M A do Carmo
- Department of Oral Surgery and Pathology, School of Dentistry, Minas Gerais Federal University, Belo Horizonte, Brazil
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20
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Sampaio FJ, D'Anunciação AL, Silva EC. Comparative follow-up of patients with acute and obtuse infundibulum-pelvic angle submitted to extracorporeal shockwave lithotripsy for lower caliceal stones: preliminary report and proposed study design. J Endourol 1997; 11:157-61. [PMID: 9181441 DOI: 10.1089/end.1997.11.157] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.5] [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
Nowadays, there is a consensus that the poor success rate of extracorporeal shockwave lithotripsy (SWL) is in the treatment of lower caliceal stones. The gravity-dependent position of the lower-pole calices is postulated to be the main factor hindering the spontaneous passage of stone debris that results from SWL. Nevertheless, we proposed that there are some particular features of the inferior-pole collecting system anatomy that could contribute to fragment retention. We studied the influence of the lower infundibulum-pelvic angle on fragment retention, considering 74 patients submitted to SWL for the treatment of lower-pole nephrolithiasis in a Lithostar Plus machine. At a mean follow-up of 9 months, 75% of the patients presenting an angle of greater than 90 degrees between the lower infundibulum where the stone was located and the renal pelvis became stone-free within 3 months. On the other hand, only 23% of the patients presenting an angle smaller than 90 degrees between the lower infundibulum where the stone was located and the renal pelvis became stone-free during the follow-up. Determination of the angle between the renal pelvis and the infundibulum of the inferior pole calix where the stone is located is very important, because the angle will differ in the same kidney, depending on stone location. Although preliminary and based on a small series of patients, our data suggest that an acute pelvic-lower pole infundibular angle hinders the spontaneous discharge of fragments after SWL. Also, use of the proposed technique of pelvic-lower pole infundibular angle measurement will be important for unifying angle evaluation by other investigators.
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Affiliation(s)
- F J Sampaio
- Urogenital Research Unit, State University of Rio de Janeiro, Brazil
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21
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de Aguiar MC, Gomez RS, Silva EC, de Araújo VC. Clear-cell ameloblastoma (clear-cell odontogenic carcinoma): report of a case. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1996; 81:79-83. [PMID: 8850489 DOI: 10.1016/s1079-2104(96)80153-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Clear-cell ameloblastoma (clear-cell odontogenic carcinoma) is an uncommon odontogenic epithelial neoplasm. We report a case of a well-circumscribed 2 cm radiolucent lesion of the anterior mandible in a 30-year-old woman; this tumor was curetted. The first recurrence (at 5-year follow-up) was treated by aggressive curettage, and in the second recurrence a block resection was performed. However, 2 years after the resection was performed, the tumor recurred for a third time as an extraosseous gingival tumor, and 6 months later a recurrence was noted involving only alveolar mucosa.
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Affiliation(s)
- M C de Aguiar
- Department of Oral Pathology, University of São Paulo, Brazil
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22
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Maciel MA, Marzochi KB, Silva EC, Rocha A, Furtado AF. [Comparative studies on endemic areas of bancroftian filariasis in Greater Recife, Brazil]. CAD SAUDE PUBLICA 1994; 10 Suppl 2:301-9. [PMID: 15042220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
Two districts in Recife (Santo Amaro and Campo Grande) and two districts in Olinda (Sapucaia and Salgadinho), were selected for a comparative study of bancroftian filariasis in Greater Recife. Selection parameters included similar socio-economic, demographic, and endemic levels of lymphatic filariasis. In the districts studied, streets were chosen randomly. These clusters consisted of 110 people each. A population sample was stratified by sex and age: 0-4, 5-9, 10-14, 15-19, 20-29, 30-39, 40-49, 50-59 and 60 years old and over. The parasitological data were obtained by measuring thick blood smears (60 micro l), collected from 8:00 to 12:00 PM and processed and stained with hematoxylin. The data were described in tables, and logarithimic expression graphics were used to analyze parasitic densities. In general, Recife showed a prevalence of 13.5%, and Olinda 12.3%. Mean parasitic densities were 41 and 70 microfilariae/60 micro l (mf/60 micro l), respectively. Higher microfilaremic rates were observed in Recife for the 20-29-year age bracket and in Olinda in the 30-39-year bracket. The authors concluded that the disease has returned to former endemic levels, and the data described call for a reevaluation of control campaigns carried out by the Brazilian National Health Foundation, since the endemic has already reached serious proportions.
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Affiliation(s)
- M A Maciel
- Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE, 50670-420, Brasil
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Romão Júnior JE, Fares JA, Silva EC, Fadil MA, Abensur H, Massola VC, Marcondes M, Sabbaga E. [Continuous ambulatory peritoneal dialysis: efficient treatment for children with terminal uremia]. AMB Rev Assoc Med Bras 1989; 35:103-6. [PMID: 2634290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have reviewed records of 12 children underwent CAPD between January 84 and May 88, ranging in age from 7 month to 16 years (mean age 8.9 +/- 4.9 years). CAPD treatment lasted from 3 to 24 months (average 10.3 months). Exchanges of dialysis fluid were performed by parents (8 cases) or children (3); mean volume was 41.7 +/- 8.7 ml/kg/exchange (range 32-58 ml/kg). During 132 patient months of treatment laboratory data showed a good metabolic control expect a tendency to hypoalbuminemia. There were 3 catheter changes. Complications were: peritonitis (15 episodes or one infection every 8.8 patient/treatment/months), hypertension (5 cases), hypervolemia (2), cuff extrusion (4), local exit site (5) and tunnel (2) infections and hernias (2). CAPD has been continued in 3 children; 6 other received renal transplantation, one was switched to hemodialysis and 2 died. This study has demonstrated that CAPD was an effective treatment for renal failure in children waiting renal transplant. Cuff extrusion and hypoalbuminemia were common complications in our children.
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Kanô H, Silva EC. [Use of Raveron in adenomectomies]. Z Urol Nephrol 1978; 71:175-9. [PMID: 77603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The loss of blood during adenectomies was quantitatively measured in 25 prostatic patients with or without Raveron-premediaction. The result in the 11 patients pretreated with Raveron was in comparison to the 14 untreated patients a reduction to one half of the blood lost by gram of the tumour tissue removed. Furthermore we observed a better demarcation of the tumour-tissue and operability together with a postoperative recovery without complications in patients treated with Raveron.
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Fonseca JB, Pugliesi N, Araújo NS, Loducca FE, Silva EC. [Presentation]. Ars Curandi Odontol 1974; 1:23-8, 33-4. [PMID: 4535555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Silva EC, Silbiger E. [Surgical correction of mandibular prognathism: case report]. Arq Cent Estud Fac Odontol UFMG (Belo Horiz) 1970; 7:219-24. [PMID: 5283118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Nascimento Júnior GT D, de Figueiredo YP, Moreira MC, Silva EC. [Osteomyelitis of the mandible: report of case]. Arq Cent Estud Fac Odontol UFMG (Belo Horiz) 1970; 7:225-31. [PMID: 5283119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Silva EC, Godinho SH. [Cleidocranial dysostosis (eeport of 3 cases)]. Arq Cent Estud Fac Odontol UFMG (Belo Horiz) 1970; 7:103-10. [PMID: 5277531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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