36 results on '"Bezerra, João Felipe"'
Search Results
2. Case report of ADEM in an adult patient with chikungunya.
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Barros, João Alfredo M. M., Vasconcelos, Arthur Felipe Barbosa, Carvalho, Francisco Anderson de Sá, Filho, Gilmar Leite Pessoa, Gomes, Ana Luísa Castelo Branco, Leite, Raíssa N. L. F., Bezerra, João Felipe, Leite, Juliana Magalhães, Andrade, Rafael de Souza, Oliveira, Bianca Etelvina Santos de, and Meira, Alex T.
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POSTVACCINAL encephalitis ,ARBOVIRUS diseases ,NEUROLOGICAL disorders ,CHIKUNGUNYA ,CEREBROSPINAL fluid examination - Abstract
Acute Disseminated Encephalomyelitis (ADEM) is a demyelinating immune‐mediated disease characterized by bilateral and confluent lesions in white matter (WM), with an acute onset. This condition may arise due to a myriad of etiological factors, encompassing mainly vaccines and viral infections. This case report describes a 39‐y‐old patient who presented with a sudden onset of fever, confusion, and reduced level of consciousness, associated with paraparesis in the lower limbs and urinary retention, 2 d before admission to the neurological emergency department. The work‐up included analysis of the cerebrospinal fluid (CSF), which showed 1.6 cells/mm3 and elevated proteins (91 g/dL); in addition to magnetic resonance imaging (MRI) of the brain and the spinal cord, in which hyperintense ovoid lesions with asymmetrical and bilateral distribution in the WM and basal ganglia were observed in the T2 and FLAIR. Later, chikungunya virus was detected in a molecular viral panel in the CSF. The patient exhibited an improvement radiologically, and in his condition following pulse with methylprednisolone and intravenous immunoglobulin therapy, and 40 mg of prednisone was prescribed for management during outpatient follow‐up. This study highlights arbovirus infections as a possible cause of acute neurological conditions, involving both the brain and the spinal cord. Furthermore, the findings observed in the report were compared with those described in the literature, including other arboviruses. In conclusion, it was observed that the majority of patients responded to treatment with corticosteroids or immunoglobulins, with some neurological deficits eventually persisting. Therefore, more studies are needed to better investigate therapeutic options. [ABSTRACT FROM AUTHOR]
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- 2024
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3. IRF6 polymorphisms in Brazilian patients with non-syndromic cleft lip with or without palate
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Bezerra, João Felipe, Silva, Heglayne Pereira Vital da, Bortolin, Raul Hernandes, Luchessi, André Ducati, Ururahy, Marcela Abbott Galvão, Loureiro, Melina Bezerra, Gil-da-Silva-Lopes, Vera Lúcia, Almeida, Maria das Graças, Amaral, Viviane Souza do, and Rezende, Adriana Augusto de
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- 2020
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4. Detection of coinfection with Primate Erythroparvovirus 1 and arboviruses (DENV, CHIKV and ZIKV) in individuals with acute febrile illness in the state of Rio Grande do Norte in 2016
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Morais, Vanessa dos Santos, primary, Reis Santana, Lídia Maria, additional, Bezerra, João Felipe, additional, Cruz, Flavia Emmanuelle, additional, Rocha de Souza, Themis, additional, Tahmasebi, Roozbeh, additional, Alves Raposo, Rafael Augusto, additional, Marcatti, Roberta, additional, Garcia Barbosa, Erick Matheus, additional, Hefford, Philip Michael, additional, Buccheri, Renata, additional, Cerdeira Sabino, Ester, additional, and Charlys da Costa, Antonio, additional
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- 2023
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5. Material genético do SARS- CoV-2 em superfícies de equipamentos utilizados na prática de atividades físicas
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Nascimento, Claudenice Rodrigues do, primary, Lamec, Delva Thyares Fonseca, additional, Campana, Eloiza Helena, additional, Bezerra, João Felipe, additional, Hilário, Fabrine Felipe, additional, and Cavalcanti, Marília Gabriela dos Santos, additional
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- 2023
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6. Screening by high‐throughput sequencing for pathogenic variants in cystic fibrosis: Benefit of introducing personalized therapies
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de Melo, Ana Cristina Vieira, primary, de Souza, Karla Simone Costa, additional, da Silva, Heglayne Pereira Vital, additional, Maia, Jussara Melo de Cerqueira, additional, Dantas, Vera Maria, additional, Bezerra, João Felipe, additional, and de Rezende, Adriana Augusto, additional
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- 2022
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7. Genetic material from SARS-CoV-2 on the surface of exercise equipment.
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do Nascimento, Claudenice Rodrigues, Fonseca Lamec, Delva Thyares, Campana, Eloiza Helena, Bezerra, João Felipe, Hilário, Fabrine Felipe, and dos Santos Cavalcanti, Marília Gabriela
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SARS-CoV-2 ,EXERCISE equipment ,POLYMERASE chain reaction - Abstract
Copyright of Saúde e Pesquisa is the property of Saude e Pesquisa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2023
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8. Anabolic Effect of Insulin Therapy on the Bone: Osteoprotegerin and Osteocalcin Up‐Regulation in Streptozotocin‐Induced Diabetic Rats
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Bortolin, Raul Hernandes, Freire Neto, Francisco Paulo, Arcaro, Carlos Alberto, Bezerra, João Felipe, da Silva, Flávio Santos, Ururahy, Marcela Abbott Galvão, Souza, Karla Simone da Costa, Lima, Valeria Morgiana Gualberto Duarte Moreira, Luchessi, André Ducati, Lima, Francisco Pignataro, Lia Fook, Marcus Vinicius, da Silva, Bartolomeu Jorge, Almeida, Maria das Graças, Abreu, Bento João, de Rezende, Luciana Augusto, and de Rezende, Adriana Augusto
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- 2017
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9. Analysis of genome instability biomarkers in children with non-syndromic orofacial clefts
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Xavier, Luíza Araújo da Costa, Bezerra, João Felipe, de Rezende, Adriana Augusto, Oliveira, Raffael Azevedo de Carvalho, Dalmolin, Rodrigo Juliani Siqueira, and do Amaral, Viviane Souza
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- 2017
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10. Efficacy and safety of HD-tDCS and respiratory rehabilitation for critically ill patients with COVID-19 The HD-RECOVERY randomized clinical trial
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Andrade, Suellen Marinho, primary, Cecília de Araújo Silvestre, Maria, additional, Tenório de França, Eduardo Ériko, additional, Bezerra Sales Queiroz, Maria Heloísa, additional, de Jesus Santana, Kelly, additional, Lima Holmes Madruga, Marcela Lais, additional, Torres Teixeira Mendes, Cristina Katya, additional, Araújo de Oliveira, Eliane, additional, Bezerra, João Felipe, additional, Barreto, Renata Gomes, additional, Alves Fernandes da Silva, Silmara Maria, additional, Alves de Sousa, Thais, additional, Medeiros de Sousa, Wendy Chrystyan, additional, Patrícia da Silva, Mariana, additional, Cintra Ribeiro, Vanessa Meira, additional, Lucena, Paulo, additional, Beltrammi, Daniel, additional, Catharino, Rodrigo Ramos, additional, Caparelli-Dáquer, Egas, additional, Hampstead, Benjamin M., additional, Datta, Abhishek, additional, Teixeira, Antonio Lucio, additional, Fernández-Calvo, Bernardino, additional, Sato, João Ricardo, additional, and Bikson, Marom, additional
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- 2022
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11. Chikungunya virus ECSA lineage reintroduction in the northeasternmost region of Brazil
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Xavier, Joilson, Fonseca, Vagner, Bezerra, Joao Felipe, do Monte Alves, Manoella, Mares-Guia, Maria Angélica, Claro, Ingra Morales, de Jesus, Ronaldo, Adelino, Talita, Araújo, Emerson, Cavalcante, Karina Ribeiro Leite Jardim, Tosta, Stephane, de Souza, Themis Rocha, Moreira da Cruz, Flavia Emanuelle, de Araújo Fabri, Allison, de Oliveira, Elaine Cristina, de Moura, Noely Fabiana Oliveira, do Carmo Said, Rodrigo Fabiano, de Albuquerque, Carlos Frederico Campelo, Azevedo, Vasco, de Oliveira, Tulio, de Filippis, Ana Maria Bispo, Venâncio da Cunha, Rivaldo, Luz, Kleber Giovanni, Giovanetti, Marta, and Alcantara, Luiz Carlos Junior
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- 2021
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12. Association of polymorphisms in IL6 gene promoter region with type 1 diabetes and increased albumin-to-creatinine ratio
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Ururahy, Marcela Abbott Galvão, de Souza, Karla Simone Costa, Oliveira, Yonara Monique da Costa, Loureiro, Melina Bezerra, da Silva, Heglayne Pereira Vital, Freire-Neto, Francisco Paulo, Bezerra, João Felipe, Luchessi, André Ducati, Doi, Sonia Quateli, Hirata, Rosario Dominguez Crespo, Almeida, Maria das Graças, Arrais, Ricardo Fernando, Hirata, Mario Hiroyuki, and de Rezende, Adriana Augusto
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- 2015
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13. Severe Acute Respiratory Syndrome Coronavirus 2 P.2 Lineage Associated with Reinfection Case, Brazil, June–October 2020
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Resende, Paola Cristina, primary, Bezerra, João Felipe, additional, Teixeira Vasconcelos, Romero Henrique, additional, Arantes, Ighor, additional, Appolinario, Luciana, additional, Mendonça, Ana Carolina, additional, Paixao, Anna Carolina, additional, Duarte, Ana Carolina, additional, Silva, Thauane, additional, Rocha, Alice Sampaio, additional, Lima, Ana Beatriz Machado, additional, Pauvolid-Corrêa, Alex, additional, Motta, Fernando Couto, additional, Teixeira, Dalane Loudal Florentino, additional, de Oliveira Carneiro, Thiago Franco, additional, Neto, Francisco Paulo Freire, additional, Herbster, Isabel Diniz, additional, Leite, Anderson Brandao, additional, Riediger, Irina Nastassja, additional, do Carmo Debur, Maria, additional, Naveca, Felipe Gomes, additional, Almeida, Walquiria, additional, Livorati, Mirian, additional, Bello, Gonzalo, additional, and Siqueira, Marilda M., additional
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- 2021
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14. A Potential SARS-CoV-2 Variant of Interest (VOI) Harboring Mutation E484K in the Spike Protein Was Identified within Lineage B.1.1.33 Circulating in Brazil
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Resende, Paola Cristina, primary, Gräf, Tiago, additional, Paixão, Anna Carolina Dias, additional, Appolinario, Luciana, additional, Lopes, Renata Serrano, additional, Mendonça, Ana Carolina da Fonseca, additional, da Rocha, Alice Sampaio Barreto, additional, Motta, Fernando Couto, additional, Neto, Lidio Gonçalves Lima, additional, Khouri, Ricardo, additional, de Oliveira, Camila I., additional, Santos-Muccillo, Pedro, additional, Bezerra, João Felipe, additional, Teixeira, Dalane Loudal Florentino, additional, Riediger, Irina, additional, Debur, Maria do Carmo, additional, Ribeiro-Rodrigues, Rodrigo, additional, Leite, Anderson Brandao, additional, do Santos, Cliomar Alves, additional, Gregianini, Tatiana Schäffer, additional, Fernandes, Sandra Bianchini, additional, Bernardes, André Felipe Leal, additional, Cavalcanti, Andrea Cony, additional, Miyajima, Fábio, additional, Sachhi, Claudio, additional, Mattos, Tirza, additional, da Costa, Cristiano Fernandes, additional, Delatorre, Edson, additional, Wallau, Gabriel L., additional, Naveca, Felipe G., additional, Bello, Gonzalo, additional, and Siqueira, Marilda Mendonça, additional
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- 2021
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15. Síndrome Respiratória Aguda Grave e a COVID-19 (SARS-Cov-2): uma revisão narrativa
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Franco Adriano, Maria Soraya Pereira, primary, Santos, Betânia Maria Pereira, additional, Figueiredo, Carmem Gabriela Gomes de Figueiredo, additional, Dulgheroff, Ana Carolina Bernardes, additional, Sarmento, Ronaldo Rodrigues, additional, Bezerra, Felipe Gonçalves, additional, Adriano, Maryanne Pereira Franco, additional, and Bezerra, João Felipe, additional
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- 2020
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16. Estratégia de enfrentamento de diagnóstico laboratorial da COVID-19 no estado da paraíba
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Adriano, Maria Soraya Pereira Franco, primary, Santos, Betânia Maria Pereira dos, additional, Figueiredo, Carmem Gabriela Gomes de, additional, Dulgheroff, Ana Carolina Bernardes, additional, Sarmento, Ronaldo Rodrigues, additional, Adriano, Maryanne Pereira Franco, additional, Vasconcelos, Romero Henrique Teixeira, additional, and Bezerra, João Felipe, additional
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- 2020
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17. PERFIL EPIDEMIOLÓGICO DOS PORTADORES DO DIABETES MELLITUS NUMA ZONA RURAL DE NOVA CRUZ, RN/ EPIDEMIOLOGICAL PROFILE OF DIABETES MELLITUS CARRIERS IN A RURAL AREA OF NOVA CRUZ, RN
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Bezerra, João Felipe, primary, Costa, Sávio da Silva, additional, Nicoletti, Giancarlo Paiva, additional, Antunes, Adalberto de Araújo, additional, and Silva, Anderson Alves da, additional
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- 2020
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18. Associação de polimorfismos do gene IRF6 em pacientes com fendas orais não sindrômica
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Bezerra, João Felipe, Ferreira, Leonardo Capistrano, Lajus, Tirzah Braz Petta, Leal, Gabriela Ferraz, Vieira, Tarsis Antonio Paiva, and Rezende, Adriana Augusto de
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PCR em tempo real ,CIENCIAS DA SAUDE [CNPQ] ,Fendas orais não-sindrômicas ,Polimorfismos ,Gene IRF6 - Abstract
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) As fendas orais constituem um problema de saúde publica atingindo cerca de 15% de todas as malformações, caracterizando-se pela formação incompleta das estruturas que separam a cavidade nasal e a cavidade oral com fatores genéticos e ambientais que contribuem para sua etiologia. Atualmente, estudos de microarray, utilizando pacientes fissurados identificaram diversas regiões de susceptibilidade para o desenvolvimento das fendas orais não-sindrômicas, dentre essas alguns estudos demonstraram a região do gene Interferon Regulatory Factor 6 (IRF6) associado ao aumento de risco para o desenvolvimento das fendas. O objetivo do presente trabalho é pesquisar polimorfismos do gene IRF6 e as possíveis associações com o desenvolvimento das fendas orais não-sindrômicas. Para isso, um total de 368 individuos (186 pacientes FL/P e 182 controles) foram selecionados no Serviço de Atendimento ao Paciente Fissurado - HUOL/UFRN. Amostras de sangue foram coletadas para extração do DNA e análise dos polimorfismos do gene IRF6 (rs2235371, rs642961, rs2236907, rs861019, e rs1044516) por PCR em tempo real. Os pacientes foram classificados nos grupos Fenda Lábio-palatina (CLP), Fenda labial (CL) e Fenda Palatina (CP) e foi observada uma associação significativa de rs2235371 (OR: 11,24, 95% CI: 1.97-64.22, p = 0,016) no grupo com a fendas palatinas isoladas (CP). Além disso, a análise da combinação alélica mostrou um aumento do risco de fendas associado aos polimorfismos rs1044516 e rs2236907, uma vez que estavam presentes em todas as combinações significativas. Assim, a associação do rs2235371 com pacientes do grupo CP mostra-se como um fator de risco para CP em nossa população. A análise das combinações alélicas mostram a influência de polimorfismos do IRF6 combinadas, principalmente (rs1044516 e rs2236907) sugerem que cada polimorfismo pode contribuir minimamente para aumentar o risco de desenvolver fendas orais não-sindrômicas em uma população brasileira de Rio Grande do Norte. Orofacial clefts are a public health problem accounting for approximately 15% of all malformations, characterized by the incomplete formation of structures that separate the nasal cavity and oral cavity with genetic and environmental factors that contribute to its etiology. Currently, microarray studies using fissured patients have identified several regions of susceptibility to the development of non-syndromic orofacial clefts among which some studies have demonstrated the region of the Interferon Regulatory Factor 6 (IRF6) gene associated with increased risk for non-syndromic orofacial clefts development. The aim of the present study is to investigate polymorphisms of the IRF6 gene and the possible correlations with the development of non-syndromic orofacial clefts. For this, a total of 368 individuals (186 FL / P patients and 182 controls) were selected in the Service of the Fissured Patient - HUOL / UFRN. Blood samples were collected for DNA extraction and analysis of the polymorphisms of the IRF6 gene (rs2235371, rs642961, rs2236907, rs861019, and rs1044516) by real-time PCR. Patients were classified into the CLP, CL and CP groups and a significant association of rs2235371 (OR: 11.24, 95% CI: 1.97-64.22, p = 0.016) was observed in the group with isolated palate clefts (CP). In addition, the analysis of the allelic combination showed an increased risk orofacial clefts associated with the polymorphisms rs1044516 and rs2236907, since they were present in all significant combinations. Thus, the association of rs2235371 with patients in the CP group is shown as a risk factor for CP in our population. The analysis of allelic combinations show the influence of combined IRF6 polymorphisms mainly (rs1044516 and rs2236907) suggest that each polymorphism may contribute minimally to increase the risk of developing non-syndromic orofacial clefts in a Brazilian population of Rio Grande do Norte.
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- 2017
19. ESTRATÉGIA DE ENFRENTAMENTO DE DIAGNÓSTICO LABORATORIAL DA COVID-19 NO ESTADO DA PARAÍBA.
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Pereira Franco Adriano, Maria Soraya, Pereira dos Santos, Betânia Maria, Gomes de Figueiredo, Carmem Gabriela, Bernardes Dulgheroff, Ana Carolina, Rodrigues Sarmento, Ronaldo, Pereira Franco Adriano, Maryanne, Teixeira Vasconcelos, Romero Henrique, and Bezerra, João Felipe
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CLINICAL pathology ,HEALTH care teams ,RESEARCH methodology ,MOLECULAR biology ,EARLY diagnosis ,COVID-19 - Abstract
Copyright of Enfermagem em Foco is the property of Conselho Federal de Enfermagem and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2020
20. REVISÃO NARRATIVA DE LITERATURA SÍNDROME RESPIRATÓRIA AGUDA GRAVE E A COVID-19 (SARS-COV-2).
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Pereira Franco Adriano, Maria Soraya, Gomes de Figueiredo, Carmem Gabriela, Bezerra, João Felipe, Rodrigues Sarmento, Ronaldo, Bernardes Dulgheroff, Ana Carolina, Pereira Franco Adriano, Maryanne, Gonçalves Bezerra, Felipe, and Pereira dos Santos, Betânia Maria
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CONVALESCENCE ,MEDICINE information services ,MEDLINE ,GENETIC mutation ,ONLINE information services ,SOCIAL isolation ,INFORMATION resources ,LITERATURE reviews ,THEMATIC analysis ,HEALTH information services ,COVID-19 ,COVID-19 pandemic - Abstract
Copyright of Enfermagem em Foco is the property of Conselho Federal de Enfermagem and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2020
21. Relationship between glycemic control and OPG gene polymorphisms with lower bone mineral density in patients with type 1 Diabetes mellitus
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Loureiro, Melina Bezerra, primary, Ururahy, Marcela Abbott Galvão, additional, Souza, Karla Simone Costa de, additional, Oliveira, Yonara Monique da Costa, additional, Silva, Heglayne Pereira Vital da, additional, Bortolin, Raul Hernandes, additional, Bezerra, João Felipe, additional, Hirata, Rosario Dominguez Crespo, additional, Maciel-Neto, José Jorge, additional, Arrais, Ricardo Fernando, additional, Almeida, Maria das Graças, additional, Hirata, Mario Hiroyuki, additional, and Rezende, Adriana Augusto de, additional
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- 2018
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22. Risk factors and comorbidities in Brazilian patients with orofacial clefts
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Silva, Heglayne Pereira Vital da, primary, Arruda, Thaynnan Thómaz Silva, additional, Souza, Karla Simone Costa de, additional, Bezerra, João Felipe, additional, Leite, Gisele Correia Pacheco, additional, Brito, Maria Edinilma Felinto de, additional, Lima, Valéria Morgiana Gualberto Duarte Moreira, additional, Luchessi, André Ducati, additional, Bortolin, Raul Hernandes, additional, Ururahy, Marcela Abbott Galvão, additional, and Rezende, Adriana Augusto de, additional
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- 2018
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23. Application of high-resolution array platform for genome-wide copy number variation analysis in patients with nonsyndromic cleft lip and palate
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da Silva, Heglayne Pereira Vital, primary, Oliveira, Gustavo Henrique de Medeiros, additional, Ururahy, Marcela Abbott Galvão, additional, Bezerra, João Felipe, additional, de Souza, Karla Simone Costa, additional, Bortolin, Raul Hernandes, additional, Luchessi, André Ducati, additional, Silbiger, Vivian Nogueira, additional, Lima, Valéria Morgiana Gualberto Duarte M, additional, Leite, Gisele Correia Pacheco, additional, Brito, Maria Edinilma Felinto, additional, Ribeiro, Erlane Marques, additional, Gil-da-Silva-Lopes, Vera Lúcia, additional, and de Rezende, Adriana Augusto, additional
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- 2018
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24. Anabolic Effect of Insulin Therapy on the Bone:OsteoprotegerinandOsteocalcinUp‐Regulation in Streptozotocin‐Induced Diabetic Rats
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Bortolin, Raul Hernandes, primary, Freire Neto, Francisco Paulo, additional, Arcaro, Carlos Alberto, additional, Bezerra, João Felipe, additional, Silva, Flávio Santos, additional, Ururahy, Marcela Abbott Galvão, additional, Souza, Karla Simone da Costa, additional, Lima, Valeria Morgiana Gualberto Duarte M, additional, Luchessi, André Ducati, additional, Lima, Francisco Pignataro, additional, Lia Fook, Marcus Vinicius, additional, Silva, Bartolomeu Jorge, additional, Almeida, Maria das Graças, additional, Abreu, Bento João, additional, Rezende, Luciana Augusto, additional, and Rezende, Adriana Augusto, additional
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- 2016
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25. Risk factors and comorbidities in Brazilian patients with orofacial clefts.
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da SILVA, Heglayne Pereira Vital, ARRUDA, Thaynnan Thómaz Silva, de SOUZA, Karla Simone Costa, BEZERRA, João Felipe, LEITE, Gisele Correia Pacheco, de BRITO, Maria Edinilma Felinto, Duarte Moreira LIMA, Valéria Morgiana Gualberto, LUCHESSI, André Ducati, BORTOLIN, Raul Hernandes, URURAHY, Marcela Abbott Galvão, and de REZENDE, Adriana Augusto
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Considering that environmental risk factors substantially contribute to the etiology of orofacial clefts and that knowledge about the characteristics and comorbidities associated with oral clefts is fundamental to promoting better quality of life, this study aimed to describe the risk factors, main characteristics, and comorbidities of a group of patients with cleft lip and/or cleft palate (CL/P) from Rio Grande do Norte (RN), Brazil. Data were obtained from 173 patients with CL/P using a form from the Brazilian database on Orofacial Clefts. Most patients were male with cleft lip and palate and had a normal size and weight at birth; presented few neonatal intercurrent events; and had anemia and respiratory and cardiovascular diseases as main associated comorbidities. They also required timely surgical rehabilitation and multidisciplinary care to stimulate their neuropsychomotor development. In addition, a high frequency of familial recurrence and of parental consanguinity was evidenced in the studied population, especially for the cleft lip and cleft palate type. Other relevant findings were the considerable maternal exposure to alcohol, infections, smoking, and hypertension, as well as low supplementation with vitamins and minerals and deliberate consumption of analgesics, antibiotics, and antihypertensives during pregnancy. Characterization of the CL/P patient profile is essential for the planning of health services and integration among the health professionals involved in the diagnosis and treatment of these malformations. Our results reinforce the need for additional research to confirm the association between environmental factors and the development of orofacial clefts. [ABSTRACT FROM AUTHOR]
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- 2018
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26. Protection against T1DM-Induced Bone Loss by Zinc Supplementation: Biomechanical, Histomorphometric, and Molecular Analyses in STZ-Induced Diabetic Rats
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Bortolin, Raul Hernandes, primary, da Graça Azevedo Abreu, Bento João, additional, Abbott Galvão Ururahy, Marcela, additional, Costa de Souza, Karla Simone, additional, Bezerra, João Felipe, additional, Bezerra Loureiro, Melina, additional, Silva, Flávio Santos da, additional, Marques, Dáfiny Emanuele da Silva, additional, Batista, Angélica Amanda de Sousa, additional, Oliveira, Gisele, additional, Luchessi, André Ducati, additional, Lima, Valéria Morgiana Gualberto Duarte Moreira, additional, Miranda, Carlos Eduardo Saraiva, additional, Lia Fook, Marcus Vinicius, additional, Almeida, Maria das Graças, additional, Rezende, Luciana Augusto de, additional, and Rezende, Adriana Augusto de, additional
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- 2015
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27. Estudo de polimorfismos em genes relacionados ao metabolismo do ácido fólico e sua associação com o desenvolvimento de fendas orais não-sindrômicas
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Bezerra, João Felipe, Jerônimo, Selma Maria Bezerra, and Alho, Clarice Sampaio
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Cleft lip and Palate. Folic acid. Polymorphism ,CIENCIAS BIOLOGICAS::FARMACOLOGIA [CNPQ] ,Fenda Labial. Fissura Labial. Lábio Leporino. Ácido Fólico. Polimorfismos - Abstract
Fundação de Amparo a Pesquisa do Estado de São Paulo The congenital facial clefts are characterized by incomplete formation of the structures that separate the oral and nasal cavity. It is known that several environmental and genetic factors are involved in its development, among these, polymorphisms associated with folic acid metabolism have been investigated. In this sense, the objective was to observe the frequency of polymorphisms C677T and A1298C methylenetetrahydrofolate reductase gene (MTHFR), methionine synthase A2756G of (MTR), A66G of methionine synthase reductase (MTRR) A80G and the reduced folate carrier (RFC1) in patients with non-syndromic oral clefts, trying to match them with their development. Methods: We studied 140 patients with non-syndromic oral clefts and their mothers and 175 control subjects with their mothers, who underwent a questionnaire to obtain family information. Were collecting blood for DNA extraction from patients and their mothers to identify the genotypes of both by PCRRFLP, in addition to carrying out the determination of glucose, AST, ALT and serum creatinine, folic acid and vitamin B12 Serum and plasma homocysteine, and the hemogram. Results: Most patients have cleft lip and palate (55.8%), followed by isolated cleft palate (24.2%) and cleft lip (20%). Regarding gender, 62% of patients were male and 48% female and, after subdivision of the type of screwdriver according to sex was found a prevalence of males in the cracks of the type lip and palate (69 %) and lip (69.2%) and in the case of cleft palate was a female predominance (59%). The average concentration of serum folate in the group of mothers of cleft patients was significantly lower (13.8 ± 2.4 ng / mL) compared with the group of mothers of control subjects (18.8 ± 3.4 ng / mL) This was also observed for the group of cleft children as compared to controls, the dosage of folic acid had a significant difference with values of 15.6 ± 0.6 (ng / mL) and 17.9 ± 0.6 (ng / mL), respectively. For the biochemical measurements of glucose, AST, ALT and creatinine were not statistically different, nor was observed for haematological parameters performed. In assessing the frequency of polymorphisms C677T and A1298C MTHFR, A2756G MTR, MTRR A66G and A80G of the RFC1 there was no statistically significant difference in genotype distribution between cases and controls both for mothers and in the cleft. Conclusion: Although not observed association of polymorphisms with the development of cracks, the decrease in serum folate in the group of cleft patients and their mothers may reflect a disturbance in the metabolism of this metabolite, necessitating further studies such as studies methylation and expression to further elucidate the involvement of folate in the development of oral clefts As fendas orais são malformações caracterizadas pela formação incompleta das estruturas que separam a cavidade nasal e oral. Sabe-se que vários fatores ambientais e genéticos estão envolvidos no seu desenvolvimento, dentre esses, polimorfismos associados ao metabolismo do ácido fólico têm sido alvo de estudos. Neste sentido, o objetivo deste trabalho foi observar a freqüência dos polimorfismos C677T e o A1298C do gene da Metilenotetrahidrofolato redutase (MTHFR), A2756G da Metionina Sintase (MTR), A66G da Metionina Sintase Redutase (MTRR) e A80G do Transportador de folato reduzido (RFC1) em pacientes portadores de fendas orais não-sindrômicas, buscando associá-los ao desenvolvimento das mesmas. Casuística e Métodos: Foram avaliados 140 portadores de fendas orais não-sindrômicas e suas mães e 175 indivíduos controles com suas mães, que foram submetidos a um questionário familiar para obtenção de informações. Foi realizada a coleta de sangue para extração do DNA dos pacientes e de suas mães para identificação dos genótipos de ambos através de PCR-RFLP, além da realização das dosagens de glicose, AST, ALT e creatinina séricos, dosagens de ácido fólico e vitamina B12 séricos e homocisteína plasmática, além da realização de hemograma. Resultados: A maioria dos pacientes são portadores de fenda lábio-palatina (55,8%), seguida da fenda palatina isolada (24,2%) e da fenda labial (20%). Em relação ao sexo, 62% dos pacientes e são do sexo masculino e 48% do sexo feminino e, após subdivisão do tipo de fenda de acordo com o sexo constatou-se uma prevalência do sexo masculino nas fendas do tipo lábio-palatina (69%) e labial (69,2%) e no caso das fendas palatinas isoladas houve uma predominância do sexo feminino (59%). A concentração média de ácido fólico sérico no grupo das mães de pacientes fissurados foi significativamente inferior (13,8±2,4ng/mL) quando comparada com o grupo das mães dos indivíduos controles (18,8±3,4ng/mL), o que também foi observado para o grupo dos pacientes fissurados quando comparado aos filhos controles, a dosagem de ácido fólico apresentou diferença significante com valores de 15,6±0,6(ng/mL) e 17,9±0,6(ng/mL), respectivamente. Para as dosagens bioquímicas de glicose, AST, ALT e creatinina não foram observadas diferenças estatísticas, assim como não foi observado para os parâmetros hematológicos realizados. Na avaliação da freqüência dos polimorfismos C677T e A1298C da MTHFR, A2756G da MTR, A66G da MTRR e A80G do RFC1 não foi observada diferença estatisticamente significante na distribuição dos genótipos entre caso e controle tanto em relação as mães quanto nos pacientes fissurados. Conclusão: Apesar de não ter sido observada associação dos polimorfismos estudados com o desenvolvimento das fendas, a diminuição na concentração sérica de ácido fólico no grupo dos pacientes fissurados e de suas mães pode refletir algum distúrbio no metabolismo desse metabólito, sendo necessário mais estudos como estudos de metilação e expressão para melhor elucidar o envolvimento do ácido fólico no desenvolvimento das fendas orais
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- 2010
28. Association of polymorphisms inIL6gene promoter region with type 1 diabetes and increased albumin-to-creatinine ratio
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Ururahy, Marcela Abbott Galvão, primary, de Souza, Karla Simone Costa, additional, Oliveira, Yonara Monique da Costa, additional, Loureiro, Melina Bezerra, additional, da Silva, Heglayne Pereira Vital, additional, Freire-Neto, Francisco Paulo, additional, Bezerra, João Felipe, additional, Luchessi, André Ducati, additional, Doi, Sonia Quateli, additional, Hirata, Rosario Dominguez Crespo, additional, Almeida, Maria das Graças, additional, Arrais, Ricardo Fernando, additional, Hirata, Mario Hiroyuki, additional, and de Rezende, Adriana Augusto, additional
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- 2014
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29. Analysis of genome instability biomarkers in children with non-syndromic orofacial clefts.
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da Costa Xavier, Luíza Araújo, Bezerra, João Felipe, de Rezende, Adriana Augusto, de Carvalho Oliveira, Raffael Azevedo, Dalmolin, Rodrigo Juliani Siqueira, and do Amaral, Viviane Souza
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FACIAL abnormalities , *JUVENILE diseases , *GENE expression , *BIOMARKERS , *CYTOKINESIS , *NUCLEOLUS - Abstract
The non-syndromic cleft lip and/or palate (NSCL/P) is a common birth defect caused by a combination of genetic and environmental factors. The possible role of genome instability on NSCL/P patient needs more investigation, since DNA metabolism is an essential cellular function to keep cells with normal genotypes and gene expression patterns according to tissue specificities, which is critical during embryo development because it requires sensitive regulation of cell proliferation, apoptosis and differentiation. Thus, genome stability is ultimately essential to maintain a healthy life. The aim of this study was to assess the frequency of genome instability biomarkers and their relationship with NSCL/P. Cytokinesis-block micronucleus assay was performed to estimate the biomarkers frequency and gene expression was analyzed by the transcriptogram in order to further explore the role of genome instability and other biological processes in this birth defect. The NSCL/P patients had higher baseline frequency of micronucleus, nuclear buds and nucleoplasmic bridges (P < 0.001) than the control group. Moreover, new nuclear morphologies (fused, circular and horseshoe) was detected in the patients' cells analyzed, possibly indicating that chronic folic acid deficiency is interfering in their genome instability. Children with clefts had 2.3 times more risk to have high micronuclei frequency (P = 0.043) according to binary logistic regression. The high genomic instability in children with oral clefts suggests that misrepaired double strand breaks in DNA that create micronuclei representing a significant factor in NSCL/P development. This study was published in 52nd EUROTOX Abstract Book. [ABSTRACT FROM AUTHOR]
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- 2017
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30. Efeito do tamoxifeno no perfil das proteínas plasmáticas em condição de diabetes mellitus tipo 1
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P. Silva, Teresa Cristina, primary, Mota, Saul B., additional, Almeida, Maria Margareth C., additional, Ferreira, Elaine Cristina S., additional, Ururahy, Marcela A. G., additional, Bezerra, João Felipe, additional, Pereira, Ney M. L., additional, Ramos, Ana M. O., additional, Almeida, Maria das Graças, additional, and Rezende, Adriana A., additional
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- 2005
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31. Avaliação molecular da saliva como meio de detecção do SARS-CoV-2
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Bezerra, Felipe Gonçalves, Adriano, Soraya Pereira Franco, and Bezerra, João Felipe
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SARS-CoV-2 infection ,Molecular test ,CIENCIAS BIOLOGICAS::BIOLOGIA GERAL [CNPQ] ,Teste molecular ,Spittle ,Covid-19 ,Saliva ,Biologia celular e molecular ,Infecção por SARS-CoV-2 ,Cellular and molecular biology - Abstract
SARS-CoV-2, which causes Covid-19, was first identified in Wuhan, Hubei Province, China, and is now spreading on a global scale. Diagnosis is performed by real-time reverse transcription polymerase chain reaction (RT-qPCR) by nasopharyngeal swab collection (NFS). Due to high testing demand and low supplies of collection materials, the need for alternative methods to facilitate accurate universal Covid-19 screening and pandemic control is highlighted. Thus, this study aimed to evaluate the molecular efficiency of saliva as a means of detecting SARS-CoV-2 in health professionals and patients in the surgical circuit of Hospital Universitário Lauro Wanderley. For this, 365 collections of SNF and saliva samples were performed, which were extracted and quantified in concentration. Identification was performed by RT-qPCR. The results showed that of the 365 samples analyzed, 45 (12.3%) had detection in at least one type of sample and the majority were 27 (60%) asymptomatic. 21 (46.7%) samples were positive for SNF and saliva, while 14 (31.1%) were positive for SNF samples only and 10 (22.2%) were positive for saliva samples only. The concentration of saliva samples was 28.6 and 30.4 ± SD for 7.6 and 8.38 ± SD of SNF. Purity ranged from 1.81 and 0.3 ± SD in saliva to 1.82 and 0.25 ± SD in SNF. Using SNF samples as the gold standard of reference, the sensitivity and specificity of saliva were 60% 97%, while positive and negative predictive values were 68% and 96%, respectively. The accuracy was 93.0% and the Kappa coefficient was 0.596. In conclusion, the results obtained in the self-collection of pure saliva are similar compared to SNF samples, being viable to be used in the detection of SARS-CoV-2. Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES O SARS-CoV-2, causador da Covid-19 foi identificado pela primeira vez em Wuhan, província de Hubei, China, e agora se propaga em escala global. O diagnóstico é realizado através da reação em cadeia da polimerase em tempo real de transcrição reversa (RT-qPCR) por coleta Swab nasofarínge (SNF). Devido à alta demanda exames e os baixos suprimentos de materiais de coleta destacam a necessidade de métodos alternativos para facilitar a triagem universal precisa da Covid-19 e controle da pandemia. Desta forma, este estudo teve como objetivo avaliar a eficiência molecular da saliva como meio de detecção do SARS-CoV-2 em profissionais de saúde e pacientes do circuito cirurgico do Hospital Universitário Lauro Wanderley. Para isso, foram realizadas 365 coletas de amostras SNF e saliva que foram extraídas e quantificadas em concentração. A identificação foi realizada através da RT-qPCR. Os resultados mostraram que das 365 amostras analisadas, 45 (12,3%) tiveram detecção em pelo menos um tipo de amostra e a maioria era 27 (60%) assintomáticos. Em SNF e saliva foram postivos em 21 (46,7%) amostras, enquanto 14 (31,1%) foram positivos apenas para amostras SNF e 10 (22,2%) positivo apenas em amostras de saliva. A concentração das amostras de saliva foi de 28,6 e 30,4 ± DP para 7,6 e 8,38 ± DP de SNF. A pureza foi de 1,81 e 0,3 ± DP em saliva para 1,82 e 0,25 ± DP em SNF. Usando amostras SNF como padrão ouro de referência a sensibilidade e especificidade da saliva foram de 60% 97%, equanto os valores preditivos positivos e negativos foram de 68% e 96%, respectivamente. A acurácia foi de 93,0% e o coeficiente Kappa foi de 0,596. Em conclusão, os resultados obtidos na auto coletada da saliva pura é semelhante em comparação com amostras SNF, sendo viável para ser usado na detecção do SARS-CoV-2.
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- 2022
32. Análise da expressão gênica na disfunção ventricular após o infarto agudo do miocárdio
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Cruz, Marina Sampaio de Menezes, Evangelista, Karine Cavalcanti Mauricio de Sena, Ururahy, Marcela Abbott Galvão, Fernandes, Luciana Sacilotto, Bezerra, João Felipe, Silbiger, Vivian Nogueira, and Luchessi, André Ducati
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Insuficiência cardíaca ,Marcadores ,Expressão gênica ,Infarto agudo do miocárdio - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq A insuficiência cardíaca (IC) é uma síndrome progressiva caracterizada pela incapacidade do coração bombear sangue suficiente para os demais tecidos, e sua principal causa é o infarto agudo do miocárdio (IAM). Apesar dos avanços na identificação de marcadores associados ao remodelamento do ventrículo esquerdo (VE), o marcador ideal para uma detecção precoce e acurada da IC isquêmica ainda não foi encontrado. Sendo assim, esse estudo tem como objetivo avaliar a expressão de 13 genes previamente associados ao IAM em pacientes com disfunção ventricular após o IAM comparando-os com aqueles que não tiveram complicações após o IAM. Além disso, esse estudo buscou listar os miRNAs mais frequentemente citados na literatura por estarem relacionados ao desenvolvimento da IC isquêmica e verificar a influencia deles na expressão dos genes estudados. Os pacientes que sofreram IAM prévio foram classificados em dois grupos: disfunção do VE [fração de ejeção do VE (FEVE) ≤ 40%, n = 14] e função do VE normal (FEVE > 40%, n = 14). A expressão de ALOX15, AREG, BCL2A1, BCL2L1, CA1, COX7B, ECHDC3, IL18R1, IRS2, KCNE1, MMP9, MYL4 e TREML4 foram avaliados por RT-PCR. Apenas a expressão de KCNE1 diminuiu no grupo FEVE ≤ 40% (p = 0,007). Foi encontrada correlação positiva entre KCNE1 e fração de ejeção (r = 0,557; p = 0,001). Houve um risco de 12,25 vezes (IC 95%: 1,33 - 113,06; p = 0,027) de disfunção do VE para pacientes com menor expressão de KCNE1. A expressão de KCNE1 mostrou alto AUROC (AUROC: 0,811, IC 95%: 0,642-0,979, p = 0,007), indicando a expressão de KCNE1 como um bom preditor em desfechos cardíacos. Análise da literatura mostrou que os miRNAs mais associados com o desenvolvimento da IC isquêmica são miR-499, miR-1, miR-133a, e miR-208b, sendo o miR-1 já descrito como regulador da expressão do KCNE1, de acordo com banco de dados público miRNet. Dessa forma, este estudo sugere que a expressão de KCNE1, bem como seus mecanismo regulatórios como o miR-1, podem estar relacionados com os níveis de FEVE e, portanto, com o risco de desenvolvimento da IC pós-IAM. Heart failure (HF) is a progressive syndrome characterized by the heart's inability to pump enough blood to other tissues, and its main cause is acute myocardial infarction (AMI). Despite advances in identifying markers associated with left ventricular (LV) remodeling, the ideal marker for early and accurate detection of ischemic HF has not yet been found. Therefore, this study aims to evaluate the expression of 13 genes previously associated with AMI in patients with LV dysfunction after AMI, comparing them with those who had no complications after AMI. In addition, this study sought to summarize the miRNAs most frequently cited in the literature as they are related to the development of ischemic HF and to verify their influence on the expression of the 13 genes. Patients who suffered previous AMI were classified into two groups: LV dysfunction [LV ejection fraction (LVEF) ≤ 40%, n = 14] and normal LV function (LVEF > 40%, n = 14). Expression of ALOX15, AREG, BCL2A1, BCL2L1, CA1, COX7B, ECHDC3, IL18R1, IRS2, KCNE1, MMP9, MYL4 and TREML4 were updated by RTPCR. Only KCNE1 expression decreased in the LVEF ≤ 40% group (p = 0.007). A positive correlation was found between KCNE1 and ejection fraction (r = 0.557; p = 0.001). There was a 12.25-fold risk (95% CI: 1.33 - 113.06; p = 0.027) of LV dysfunction for patients with lower expression of KCNE1. KCNE1 expression showed high AUROC (AUROC: 0.811, 95% CI: 0.642-0.979, p = 0.007), indicating KCNE1 expression as a good predictor of cardiac outcomes. Literature analysis showed that miR-499, miR-1, miR-133a, and miR-208b are the miRNAs most associated with the development of ischemic HF. According to miRNet public database, miR-1 is already described as a regulator of KCNE1 expression. Thus, this study suggests that the expression of KCNE1, as well as its regulatory mechanisms such as miR-1, may be related to LVEF levels and, therefore, to the risk of development of post-AMI HF.
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- 2021
33. Ação imunomodulatória da cloroquina em células mononucleares do sangue periférico de pacientes com diabetes mellitus tipo 1
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Almeida Júnior, Renato Ferreira de, Bezerra, João Felipe, Freitas, Juliano Carlo Rufino de, Ururahy, Marcela Abbott Galvão, Silva, Marcelo de Sousa da, Farias, Kleber Juvenal Silva, and Rezende, Adriana Augusto de
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Diabetes ,Nanopartículas ,Cloroquina ,Imunidade ,Células mononucleares do sangue periférico - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq O Diabetes mellitus tipo 1 (DM1) é uma doença autoimune, caracterizada por hiperglicemia crônica, a qual gera um processo inflamatório que resulta em complicações micro e macrovasculares. O tratamento do DM1 é direcionado para o controle glicêmico através do uso da insulina, entretanto, não tem sido suficiente para controlar ou reduzir o processo inflamatório. Neste sentido, tem surgido terapias adjuvantes associando anti-inflamatórios e nanopartículas (NPs) como estratégia de prevenir e/ou retardar as complicações associadas a esta doença. A Cloroquina (CQ), por possui propriedades anti-inflamatórias torna-se uma das alternativas de tratamento adjuvante para o diabetes. Assim, o objetivo deste estudo foi avaliar o uso da cloroquina, incorporada ou não em nanopartículas de ácido polilático (PLA), em células mononucleares do sangue periférico (PBMC) de pacientes com DM1, afim de observar seu efeito imunomodulador sobre as citocinas IL-1β, IL-12, IFN-γ, TNF-α e IL-10. Foram selecionados 25 indivíduos normoglicêmicos e 25 pacientes com DM1, ambos com idades entre 10 e 16 anos. O controle glicêmico foi avaliado através da hemoglobina glicada (HbA1c) e concentração sérica de glicose. A viabilidade das PBMCs do grupo DM1 foi avaliada pelo teste MTT por exposição a CQ e CQ incorporada as nanopartículas (CQ NPs) em concentrações de 200, 100, 50, 25, 10 e 5 µM. A concentração de CQ de 10µM foi escolhida e os PBMC dos pacientes DM1 foram submetidos a três condições de tratamento: não tratado (NT), tratado com cloroquina (CQ) e tratado com cloroquina incorporada em nanopartículas (CQ NPs). As células foram incubadas por um período de 48 horas e em intervalos de 24 horas as expressões de mRNA das citocinas IL1B, IFNG, TNFA, IL12 e IL10 foram determinadas por quantificação relativa em PCR em tempo real. A expressão de IL1B foi reduzida em células tratadas com CQ em até 48h (p
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- 2020
34. Caracterização genética do vírus da Imunodeficiência Humana-1 circulante no Rio Grande do Norte
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Cavalcanti, Pedro Henrique Ferreira, Bentancor, Gonzalo José Bello, Bezerra, João Felipe, Fernandes, José Verissimo, and Araújo, Joselio Maria Galvão de
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CIENCIAS BIOLOGICAS [CNPQ] ,Rio Grande do Norte ,Caracterização genética ,HIV-1 ,Mutação de resistência - Abstract
Desde os primeiros relatos da AIDS na década de 1980 até os dias atuais, o HIV foi responsável por aproximadamente 35 milhões de mortes, sendo considerada uma das piores pandemias já registrada na espécie humana. O HIV é um vírus RNA pertencente a família Retroviridae, subfamília Orthoretrovirinae do gênero dos Lentivirus. Apesar de existirem duas espécies de HIV, somente o HIV-1 apresenta distribuição pandêmica. Filogeneticamente o vírus divide-se em diversos grupos, subtipos, subsubtipos, CRF’s e URF’s. Com o advento da terapia antirretroviral altamente ativa (HAART) a infecção pelo HIV passa a ser considerada de caráter crônica, o indivíduo bem tratado apresenta melhora na qualidade de vida e possibilidade de não transmissibilidade. Todavia o aumento da resistência aos antirretrovirais, principalmente devido à má adesão ao tratamento, poderá prejudicar os avanços globais realizados até hoje no combate ao HIV. O objetivo deste estudo foi a realização da caracterização genética das linhagens circulante do HIV-1 no Estado do Rio Grande do Norte a partir de amostras referente ao período de janeiro à outubro de 2018. Um total de 170 amostras das 4 regiões de saúde do Rio Grande do Norte foram selecionados, atendendo os critérios estabelecidos de inclusão, e em 8 amostras foi possível a realização de todas as etapas metodológicas da pesquisa. A realização da filogenia por meio do sequenciamento da região da protease e transcriptase reversa do gene Pol apontou predomínio do HIV1-B circulante com um paciente apresentando o subtipo F1 e um apresentando subtipo C. A análise do sequenciamento genético dos vírus apontou a presença de diversas mutações de resistência, tanto transmitida como adquirida, além de mutações acessórias, apenas em 4 amostras não foram evidenciadas mutações de importância clínica, as mutações mais recorrentes foram modeladas e identificadas na transcriptase reversa em regiões de α-hélice, folha-β e região de alça. Em conclusão, esse estudo revelou um predomínio do HIV-1 subtipo B circulante e o perfil de mutações revelou que os antirretrovirais mais prejudicados foram os inibidores da transcriptase reversa. As informações são fundamentais para redirecionamento adequado de resgate terapêutico destes pacientes e rastreio epidemiológico molecular de linhagens circulantes. Since the earliest reports of AIDS in the 1980s to the present, the HIV was responsible for approximately 35 million deaths, considered one of the worst pandemics ever recorded in the human. HIV is an RNA virus belonging to the family Retroviridae, subfamily Orthoretrovirinae of the genus Lentivirus. Although there are two species of HIV, only HIV-1 has a pandemic distribution. Phylogenetically the virus is divided into several groups, subtypes, sub-types, CRF's and URF's. With the advent of highly active antiretroviral therapy (HAART) HIV infection is considered chronic, the well treated individual is not developing AIDS, resulting in an improvement in the quality of life, increased survival and the possibility of non-transmissibility. However, increasing resistance to antiretroviral drugs, mainly due to poor adherence to treatment, could jeopardize the global progress made so far in combating HIV. The objective of this study was to perform the genetic characterization of circulating HIV-1 strains in the State of Rio Grande do Norte from samples from January to October 2018. A total of 170 samples from the four health regions of Rio Grande do Norte were selected, meeting the established inclusion criteria, and in 8 samples it was possible to perform all the methodological steps of the research. The phylogeny by means of sequencing of the protease and reverse transcriptase region of the Pol gene showed predominance of circulating HIV-1-B with one patient presenting subtype F1 and one presenting subtype C. The analysis of the genetic sequencing of the viruses indicated the presence of several mutations of resistance, both transmitted and acquired, as well as accessory mutations, only mutations of clinical importance were not detected in 4 samples, the most recurrent mutations were modeled and identified in reverse transcriptase in regions of α-helix, β-sheet and region of shoulder strap. In conclusion, this study revealed a predominance of circulating HIV-1 subtype B and the mutation profile revealed that the most impaired antiretrovirals were reverse transcriptase inhibitors. The information is fundamental for adequate redirection of therapeutic rescue of these patients and molecular epidemiological screening of circulating strains.
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- 2019
35. Vírus Zika no Estado do Rio Grande do Norte: aspectos epidemiológicos e filogenéticos
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Alves, Brenda Elen Bizerra, Lanza, Daniel Carlos Ferreira, Bezerra, João Felipe, Fernandes, José Verissimo, and Araújo, Joselio Maria Galvão de
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Filogenia ,CIENCIAS BIOLOGICAS: BIOLOGIA PARASITÁRIA [CNPQ] ,Rio Grande do Norte ,Vírus Zika ,Epidemiologia - Abstract
O Rio Grande do Norte (RN) foi um dos primeiros Estados onde o vírus Zika foi incialmente detectado no Brasil, provavelmente devido ao fluxo de turistas, ao alto grau de infestação do Aedes aegypti e a precariedade do saneamento ambiental. A presença desse arbovírus no RN, a notificação de casos graves, a escassez de trabalhos disponíveis sobre esse tema e sua possível introdução do vírus no Brasil durante a Copa das Confederações de 2013, serviram de motivação para a realização desse estudo que buscou investigar a circulação do vírus Zika no Estado do Rio Grande do Norte e realizar a caracterização molecular dos vírus isolados durante o período de junho de 2013 a dezembro de 2016. Durante esse período, amostras de pacientes foram analisadas através da técnica de transcrição reversa seguida da reação em cadeia da polimerase em tempo real (qRT-PCR) para a detecção do genoma viral. A infecção pelo ZIKV foi confirmada em 8,97% (73/814) dos casos estudados. A análise da distribuição espacial do vírus pelas diferentes microrregiões do Estado, mostrou sua circulação em 16 municípios. Os municípios com maior número de casos confirmados foram Natal e Parnamirim. O período com maior incidência da infecção ocorreu nos meses de março, abril e maio de 2015, entretanto, as maiores proporções de casos positivos ocorreram nos meses de novembro e dezembro de 2014 e fevereiro de 2015. A maioria dos casos de infecção por Zika ocorreu em pacientes do sexo feminino, mas sem diferença significativa em relação ao sexo masculino. A infecção pelo vírus Zika atingiu todas as faixas etárias com praticamente as mesmas taxas de incidência da infecção. Nenhuma correlação entre a estimativa de viremia e o tempo de doença nos pacientes foi encontrada, assim como, não foram encontradas diferenças significativas na viremia de acordo com o tipo de amostra analisada (soro/sangue total), mas houve uma diferença significativa na viremia entre o quarto e quinto dia de sintomas analisados. A análise filogenética indicou que a linhagem do ZIKV circulante no estado do Rio Grande do Norte pertence ao genótipo Asiático. Ao comparar os vírus isolados nesse estudo com as cepas ascestrais isoladas na Malásia foram identificadas três mutações que geraram mudanças de aminoácidos: D393E, V473M e T487M. Essas mutações foram encontradas no domínio III da proteína (E) e provavelmente, influenciam na patogenicidade das cepas dos vírus Zika circulantes no Estado do RN. Esse estudo fornece subsídios necessários para compreender a distribuição e a dinâmica da doença no estado do Rio Grande do Norte e a caracterização genética é fundamental para a compreensão dos aspectos biológicos do vírus. Rio Grande do Norte (RN) was one of the first states where the virus was initially detected in Brazil, probably due to the tourists flow, the high degree of Aedes aegypti infestation and the precariousness of environmental sanitation.The presence of this arbovirus in RN, the notification of severe cases, the scarcity of available works on this subject and its possible introduction of the virus in Brazil during the Confederations Cup 2013, served as motivation for the accomplishment of this study that sought to investigate the circulation of the Zika virus in the State of Rio Grande do Norte and to perform the molecular characterization of the isolated viruses during the period from June 2013 to December 2016. In this period, patient samples were analyzed using the reverse transcription technique followed by real-time polymerase chain reaction (qRTPCR) for the detection of the viral genome. ZIKV infection was confirmed in 8.97% (73/814) of the cases studied. The analysis of the spatial distribution of the virus by the different micro regions of the State showed its circulation in 16 municipalities. The municipalities with the highest number of confirmed cases were Natal and Parnamirim. The period with the highest incidence of infection occurred in the months of March, April and May of 2015 however, the highest proportions of positive cases occurred in the months of November and December of 2014 and February of 2015. The majority of cases of Zika infection occurred in female patients, but without significant difference in relation to males. Zika virus infection reached all age groups with practically the same infection incidence rates. No correlation between viremia estimation and disease time in patients was found, as well as, no significant differences in viremia according to the type of sample analyzed (serum/whole blood), but there was a significant difference in viremia between the fourth and fifth day of symptoms analyzed. Phylogenetic analysis indicated that the circulating ZIKV in the state belong to the Asian genotype.The amino acid comparison between ZIKV identified in this study and the ancestral strains isolated in Malaysia showed three mutations with amino acid changes: D393E, V473M and T487M. These mutations were found in domain III of the protein (E), and probably influence the pathogenicity of Zika virus strains circulating in Rio Grande do Norte. This study provides the necessary inputs to understand the distribution and dynamics of the disease in the State of Rio Grande do Norte and the genetic analyses are fundamental for understanding the biological aspects of the virus.
- Published
- 2018
36. [Effect of tamoxifen on plasma proteins in diabetes mellitus type 1].
- Author
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Silva TC, Mota SB, Almeida MM, Ferreira EC, Ururahy MA, Bezerra JF, Pereira NM, Ramos AM, Almeida Md, and Rezende AA
- Subjects
- Analysis of Variance, Animals, Blood Glucose drug effects, Blood Protein Electrophoresis, Body Weight drug effects, Estrous Cycle drug effects, Female, Rats, Rats, Wistar, Blood Proteins drug effects, Diabetes Mellitus, Experimental blood, Diabetes Mellitus, Type 1 blood, Estrogen Antagonists pharmacology, Tamoxifen pharmacology
- Abstract
Purpose: Considering that important scientific advances have been obtained through studies based on experimental Diabetes mellitus, and that tamoxifen action in humans remains unknown, the aim of the present work is to follow the modifications promoted by diabetes and tamoxifen in the electrophoretic profile of plasmatic proteins., Methods: It was used 27 Wistar female rats (180-250 body weight), randomicaly divided into five groups: C1 (n = 3, received vehicle), C2 (n = 3, no treatment), T (n =5, treated with tamoxifen, 0.3mg/Kg/day), D (n = 8, experimental diabetes by estreptozotocin, 45mg/Kg and DT (n = 8, diabetic treated with tamoxifen). The electrophoresis was accomplished in cellulose acetate. pH 8.6-8.8, TECNOW chamber, and the strains were stained by Ponceau S. The total proteins were determined by the Biuret method (Labtest). Proteinograms were obtained in densitometer BioSystems BTS-235., Results: Albumin decreased progressively in the groups T, D and DT; a1 fraction increased in groups T and DT; a2 fraction increased in groups T and D, including a synergic effect in group DT; a fraction increased in groups T and D; a fraction increased in groups T, D and DT., Conclusions: The results indicate an acute phase resposta, with synergic effect of tamoxifen and diabetes, suggesting a probable hepatic lesion.
- Published
- 2005
- Full Text
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