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Figueiredo RG, Patino CM, Ferreira JC. Crafting a research protocol: a stepwise comprehensive approach. J Bras Pneumol 2023; 49:e20230371. [PMID: 38126687 PMCID: PMC10760430 DOI: 10.36416/1806-3756/e20230371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Affiliation(s)
- Ricardo Gassmann Figueiredo
- . Programa de Pós-Graduação em Saúde Coletiva, Universidade Estadual de Feira de Santana - PPGSC-UEFS - Feira de Santana (BA) Brasil
- Methods in Epidemiologic, Clinical, and Operations Research-MECOR-program, American Thoracic Society/Asociación Latinoamericana del Tórax, Montevideo, Uruguay
| | - Cecilia María Patino
- Methods in Epidemiologic, Clinical, and Operations Research-MECOR-program, American Thoracic Society/Asociación Latinoamericana del Tórax, Montevideo, Uruguay
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles (CA) USA
| | - Juliana Carvalho Ferreira
- Methods in Epidemiologic, Clinical, and Operations Research-MECOR-program, American Thoracic Society/Asociación Latinoamericana del Tórax, Montevideo, Uruguay
- . Divisão de Pneumologia, Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
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Tosta BR, de Almeida IM, da Cruz Pena L, Dos Santos Silva H, Reis-Goes FS, Silva NN, Cruz JVA, Dos Anjos Silva M, de Araújo JF, Rodrigues JL, Oliveira G, Figueiredo RG, Vaz SN, Montaño-Castellón I, Santana D, de Lima Beltrão FE, Carneiro VL, Campos GS, Brites C, Fortuna V, Figueiredo CA, Trindade SC, Ramos HE, Costa RDS. MTOR gene variants are associated with severe COVID-19 outcomes: A multicenter study. Int Immunopharmacol 2023; 125:111155. [PMID: 37951192 DOI: 10.1016/j.intimp.2023.111155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/13/2023]
Abstract
BACKGROUND The worst outcomes linked to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection have been attributed to the cytokine storm, which contributes significantly to the immunopathogenesis of the disease. The mammalian target of rapamycin (mTOR) pathway is essential for orchestrating innate immune cell defense including cytokine production and is dysregulated in severe Coronavirus Disease 2019 (COVID-19) individuals. The individual genetic background might play a role in the exacerbated immune response. OBJECTIVE In this study, we aimed to investigate the association between MTOR genetic variants and COVID-19 outcomes. METHODS This study enrolled groups of individuals with severe (n = 285) and mild (n = 207) COVID-19 from Brazilian states. The MTOR variants, rs1057079 and rs2536, were genotyped. A logistic regression analysis and Kaplan-Meier survival curves were performed. We applied a genotyping risk score to estimate the cumulative contribution of the risk alleles. Tumor necrosis factor (TNF) and interleukin-6 (IL-6) plasma levels were also measured. RESULTS The T allele of the MTOR rs1057079 variant was associated with a higher likelihood of developing the most severe form of COVID-19. In addition, higher levels of IL-6 and COVID-19 death was linked to the T allele of the rs2536 variant. These variants exhibited a cumulative risk when inherited collectively. CONCLUSIONS These results show a potential pathogenetic role of MTOR gene variants and may be useful for predicting severe outcomes following COVID-19 infection, resulting in a more effective allocation of health resources.
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Affiliation(s)
- Bruna Ramos Tosta
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Ingrid Marins de Almeida
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Laiane da Cruz Pena
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Hatilla Dos Santos Silva
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Fabiane S Reis-Goes
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Nívia N Silva
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - João Victor Andrade Cruz
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Mailane Dos Anjos Silva
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Jéssica Francisco de Araújo
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Juliana Lopes Rodrigues
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | | | | | - Sara Nunes Vaz
- Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, Bahia, Brazil
| | - Iris Montaño-Castellón
- Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, Bahia, Brazil
| | - Daniele Santana
- Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, Bahia, Brazil
| | | | | | - Gubio Soares Campos
- Laboratório de Virologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Carlos Brites
- Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, Bahia, Brazil
| | - Vitor Fortuna
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Camila Alexandrina Figueiredo
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil
| | - Soraya Castro Trindade
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil; Universidade Estadual de Feira de Santana, Bahia, Brazil
| | - Helton Estrela Ramos
- Programa de Pós-Graduação em Processos Interativos de Órgãos e Sistema, Instituto de Saúde e Ciência, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Ryan Dos Santos Costa
- Laboratório de Imunofarmacologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Brazil.
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de Carvalho-Pinto RM, Cançado JED, Caetano LSB, Machado AS, Blanco DC, Garcia GF, Figueiredo RG, Bartholo TP. Asthma and pregnancy. Rev Assoc Med Bras (1992) 2023; 69:e2023S123. [PMID: 37556642 PMCID: PMC10411707 DOI: 10.1590/1806-9282.2023s123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/17/2023] [Indexed: 08/11/2023]
Affiliation(s)
- Regina Maria de Carvalho-Pinto
- Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, Instituto do Coração, Divisão de Pneumologia – São Paulo (SP), Brazil
| | - José Eduardo Delfini Cançado
- Santa Casa de Misericórdia de São Paulo, Pós-Graduação da Faculdade de Ciências Médicas – São Paulo (SP), Brazil
| | | | - Adelmir Souza Machado
- Universidade Federal da Bahia, 4 D do Instituto de Ciências da Saúde – Bahia (BA), Brazil
| | - Daniela Cavalet Blanco
- Pontifícia Universidade Católica do Rio Grande do Sul, Escola de Medicina – Porto Alegre (RS), Brazil
| | | | - Ricardo Gassmann Figueiredo
- Universidade Estadual de Feira de Santana, Programa de Pós-Graduação em Saúde Coletiva – Feira de Santana (BA), Brazil
| | - Thiago Prudente Bartholo
- Universidade do Estado do Rio de Janeiro, Faculdade de Ciências Médicas, Disciplina de Pneumologia e Tisiologia – Rio de Janeiro (RJ), Brazil
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Azevedo E, Figueiredo RG, Pinto RV, Ramos TDCF, Sampaio GP, Bulhosa Santos RP, Guerreiro MLDS, Biondi I, Trindade SC. Evaluation of systemic inflammatory response and lung injury induced by Crotalus durissus cascavella venom. PLoS One 2020; 15:e0224584. [PMID: 32084665 PMCID: PMC7035002 DOI: 10.1371/journal.pone.0224584] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 10/13/2019] [Accepted: 01/28/2020] [Indexed: 12/12/2022] Open
Abstract
This study investigated the systemic inflammatory response and mechanism of pulmonary lesions induced by Crotalus durissus cascavella venom in murine in the state of Bahia. In order to investigate T helper Th1, Th2 and Th17 lymphocyte profiles, we measured interleukin (IL) -2, IL-4, IL-6, IL-10, IL-17, tumor necrosis factor (TNF) and interferon gamma (IFN-γ) levels in the peritoneal fluid and macerated lungs of mice and histopathological alterations at the specific time windows of 1h, 3h, 6h, 12h, 24h and 48h after inoculation with Crotalus durissus cascavella venom. The data demonstrated an increase of acute-phase cytokines (IL-6 and TNF) in the first hours after inoculation, with a subsequent increase in IL-10 and IL-4, suggesting immune response modulation for the Th2 profile. The histopathological analysis showed significant morphological alterations, compatible with acute pulmonary lesions, with polymorphonuclear leukocyte (PMN) infiltration, intra-alveolar edema, congestion, hemorrhage and atelectasis. These findings advance our understanding of the dynamics of envenomation and contribute to improve clinical management and antiophidic therapy for individuals exposed to venom.
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Affiliation(s)
- Elen Azevedo
- Laboratory of Venomous Animals and Herpetology, Biology Department, State University of Feira de Santana, Feira de Santana, Brazil
- Postgraduate Program in Biotechnology, State University of Feira de Santana, Feira de Santana, Brazil
| | - Ricardo Gassmann Figueiredo
- Pulmonology Division, Department of Health, State University of Feira de Santana–UEFS, Feira de Santana, Brazil
| | - Roberto Vieira Pinto
- Pathological Anatomy Laboratory–LABSEAP, Cardiopulmonary Clinic, Novo Mundo, Brazil
| | | | | | | | - Marcos Lázaro da Silva Guerreiro
- Laboratory of Venomous Animals and Herpetology, Biology Department, State University of Feira de Santana, Feira de Santana, Brazil
| | - Ilka Biondi
- Laboratory of Venomous Animals and Herpetology, Biology Department, State University of Feira de Santana, Feira de Santana, Brazil
- * E-mail: (SCT); (IB)
| | - Soraya Castro Trindade
- Postgraduate Program in Biotechnology, State University of Feira de Santana, Feira de Santana, Brazil
- Department of Health, Feira de Santana State University, Feira de Santana, Bahia, Brazil
- * E-mail: (SCT); (IB)
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