Luis Artur Ferreira de Sousa

Mr. Luis Artur Ferreira de Sousa

Lab. Virology, Universidade CEUMA, São Luís, Maranhão, Brazil
orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 July 2023 in Nature Communications
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JXJoilson Xavier
Joilson Xavier
LALuiz Carlos Junior Alcantara
Luiz Carlos Junior Alcantara
Vagner FonsecaVagner Fonseca
Vagner Fonseca
MLMauricio Lima
Mauricio Lima
ECEmerson Castro
Emerson Castro
Marta GiovanettiMarta Giovanetti
Marta Giovanetti
The emergence and reemergence of mosquito-borne diseases in Brazil such as yellow fever, zika, chikungunya, and dengue have had serious impacts on public health. Concerns have been raised due to the rapid dissemination of the chikungunya virus across the country since its first detection in 2014 in Northeast Brazil. In this work, we carried out on-site training activities in genomic surveillance in partnership with the National Network of Public Health Laboratories that have led to the generation of 422 chikungunya virus genomes from 12 Brazilian states over the past two years (2021–2022), a period that has seen more than 312 thousand chikungunya fever cases reported in the country. These genomes increased the amount of available data and allowed a more comprehensive characterization of the dispersal dynamics of the chikungunya virus East-Central-South-African lineage in Brazil. Tree branching patterns revealed the emergence and expansion of two distinct subclades. Phylogeographic analysis indicated that the northeast region has been the leading hub of virus spread towards other regions. Increased frequency of C > T transitions among the new genomes suggested that host restriction factors from the immune system such as ADAR and AID/APOBEC deaminases might be driving the genetic diversity of the chikungunya virus in Brazil.

31 May 2023 in Viruses
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VFValéria Fontes
Valéria Fontes
HFHivylla Lorrana dos Santos Ferreira
Hivylla Lorrana dos Santos Ferreira
MRMarilene Ribeiro
Marilene Ribeiro
APAruanã Joaquim Pinheiro
Aruanã Joaquim Pinheiro
CMCarlos Maramaldo
Carlos Maramaldo
LNLidio Lima Neto
Lidio Lima Neto
Introduction: Although fewer children have been affected by the severe form of the coronavirus disease 2019 (COVID-19), community-acquired pneumonia (CAP) continues to be the leading global cause of child hospitalizations and deaths. Aim: This study investigated the incidence of respiratory syncytial virus (RSV) as well its subtypes (RSV A and B), adenovirus (ADV), rhinovirus (HRV), metapneumovirus (HMPV), coronavirus (NL63, OC43, 229E and HKU1), parainfluenza virus subtypes (PI1, PI2 and PI3), bocavirus and influenza A and B viruses (FluA and FluB) in children diagnosed with CAP during the COVID-19 pandemic. Methods: A total of 200 children with clinically confirmed CAP were initially recruited, of whom 107 had negative qPCR results for SARS-CoV-2 and were included in this study. Viral subtypes were identified using a real-time polymerase chain reaction in the nasopharyngeal swab samples. Results: Viruses were identified in 69.2% of the patients. RSV infections were the most frequently identified (65.4%), with type RSV B being the most prevalent (63.5%). In addition, HCoV 229E and HRV were detected in 6.5% and 3.7% of the patients, respectively. RSV type B was associated with severe acute respiratory infection (ARI) and a younger age (less than 24 months). Conclusions: New strategies for preventing and treating viral respiratory infections, particularly RSV infections, are necessary.

19 September 2023 in Journal of Medical Virology
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Luis Artur Ferreira de SousaLuis Artur Ferreira de Sousa
Luis Artur Ferreira de Sousa
LFLucas Salomão de Sousa Ferreira
Lucas Salomão de Sousa Ferreira
LLLuis Felipe Lima Lobato
Luis Felipe Lima Lobato
HFHivylla Lorrana dos Santos Ferreira
Hivylla Lorrana dos Santos Ferreira
LSLucas Henrique dos Santos Sousa
Lucas Henrique dos Santos Sousa
LNLidio Gonçalves Lima Neto
Lidio Gonçalves Lima Neto

23 March 2023 in Research, Society and Development
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LOLayanna Almeida de Oliveira
Layanna Almeida de Oliveira
JMJhade D’umar Ferreira Maranhão
Jhade D’umar Ferreira Maranhão
Luis Artur Ferreira de SousaLuis Artur Ferreira de Sousa
Luis Artur Ferreira de Sousa
HFHivylla Lorrana dos Santos Ferreira
Hivylla Lorrana dos Santos Ferreira
RNRoberval Moraes Neto
Roberval Moraes Neto
Luis Felipe Lima LobatoLuis Felipe Lima Lobato
Luis Felipe Lima Lobato
The crisis generated by the pandemic impacted several factors in people's daily lives and promoted changes that led to increased stress. This situation draws attention to possible psychiatric complications, not only in patients who have already been infected by the virus, but also in the entire population who had to deal with the measures implemented by the government. Thus, this study is based on evaluating the population's immune compromise associated with stress conditions in the face of the COVID-19 pandemic. This is an integrative literature review, with a qualitative approach based on the collection of national and international data from the following databases: Medical Literature Analysis and Retrieval System Online (MEDLINE/PubMed), Scientific Electronic Library Online (SciELO) and Google Scholar. In the study, the relationship between the nervous, immune and endocrine systems was observed, altering mechanisms in the neuroendocrine immune circuits and causing damage to health due to the stress processes of social isolation. There was increased expression of pro-inflammatory genes and decreased expression of antiviral genes, increasing the risk of complications from COVID-19 due to changes in cytokine transmission. Stress and COVID-19 increase the secretion of IL-6, a cytokine that is associated with death in cases of COVID-19. In health professionals there were changes in immune cells after being exposed to stressors. In view of the results obtained, it was found that stress during the pandemic affected the immune system by altering the response against SARS-CoV-2, increasing viral pathogenesis.

1 July 2024 in Revista Neurociências
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SESabrina Maria Fernandes Praseres Ericeira
Sabrina Maria Fernandes Praseres Ericeira
RSRayrane Jesus De Mesquita Santos
Rayrane Jesus De Mesquita Santos
Luis Artur Ferreira de SousaLuis Artur Ferreira de Sousa
Luis Artur Ferreira de Sousa
HFHivylla Lorrana dos Santos Ferreira
Hivylla Lorrana dos Santos Ferreira
Luis Felipe Lima LobatoLuis Felipe Lima Lobato
Luis Felipe Lima Lobato
Introdução. A pandemia da COVID-19 desencadeou uma crise sanitária com mais de 700 milhões de infectados e 7 milhões de óbitos. Hoje, compreende-se que os impactos da pandemia ultrapassam o sistema respiratório, abrangendo uma diversidade de manifestações clínicas sistêmicas, incluindo o sistema nervoso. Objetivo. Realizar uma revisão científica de literatura com o intuito de elucidar a capacidade de infecção neurológica do SARS-CoV-2 bem como avaliar as manifestações neurológicas provocadas pela COVID-19. Método. Revisão de literatura de caráter integrativo com estudos publicados entre 2020 e 2023 obtidos nas plataformas Pubmed e Elsevier. Foram empregados os seguintes descritores: SARS-CoV-2, COVID-19, sistema nervoso, manifestações neurológicas e neurotropismo. Resultados. As principais manifestações obtidas, foram no sistema nervoso central: cefaleia, encefalopatia, encefalite e acidente vascular cerebral (AVC). Sistema nervoso periférico: anosmia, ageusia, disgeusia, síndrome de Guillain-Barré (SGB) e hiposmia. Destaca-se também sintomas neuropsicológicos que foram desenvolvidos após infecção: irritabilidade, ansiedade, distúrbios do sono, instabilidade emocional, baixo ânimo, perda de memória e depressão, bem como sintomas de confusão, vertigem, zumbido no ouvido e queda de cabelo. Além dos persistentes mesmo após cura da infecção: anosmia/ageusia, cefaleia, mialgia, encefalopatia, encefalite, AVC, SGB, paralisia de nervos cranianos, ataxia cerebelar aguda e mioclonia. Conclusão. A pesquisa das manifestações neurológicas torna-se crucial para o entendimento da complexidade das interações do vírus e o sistema nervoso, assim como a contínua investigação do neurotropismo viral, que transcende a COVID-19 e nos leva um futuro mais informado e preparado para enfrentar desafios emergentes de saúde pública.

2 October 2021 in Research, Society and Development
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JIJalmir Coelho Xavier Ii
Jalmir Coelho Xavier Ii
Luis Artur Ferreira de SousaLuis Artur Ferreira de Sousa
Luis Artur Ferreira de Sousa
MAMarcela Almeida
Marcela Almeida
MSMaristela Matos Silva
Maristela Matos Silva
MOMilena de Jesus Marinho Garcia de Oliveira
Milena de Jesus Marinho Garcia de Oliveira
Eduardo Martins de SousaEduardo Martins de Sousa
Eduardo Martins de Sousa
A acne vulgar é uma patologia que acomete a maioria dos adolescentes sendo de ambos os sexos, é mais predominante no sexo masculino por causa da mudança de hormônios que acontecem nessa fase. Por esse motivo, muitos adolescentes enfrentam sérios problemas psicológicos que geram uma baixa autoestima podendo gerar depressão e isolamento do convívio com a sociedade. Esse estudo tem como objetivo avaliar o entendimento que os adolescentes têm sobre os cuidados necessários para o tratamento da acne. Foi realizada uma pesquisa quanti/qualitativa de caráter exploratório, com adolescentes e jovens na faixa etária entre 14 e 20 anos frequentantes de uma igreja da cidade de São Luís – MA. A amostra do estudo compreendeu 13 participantes que inicialmente foram orientados a responder o questionário pré-intervenção disponível no programa Socrative by MasteryConnect, sendo que o link para o acesso ao questionário foi disponibilizado na plataforma Google Meet, este questionário contemplava 7 questões relacionadas às principais dúvidas referentes ao tema acne. Após todos responderem o formulário, deu-se início a apresentação da palestra abordando as principais informações sobre o tema, bem como as principais dúvidas do público estudado. Ao fim da palestra o público do estudo foi novamente direcionado ao por meio de link, para que os mesmos respondessem o questionário pós-intervenção com os mesmos questionamentos. Concluí-se com este trabalho que os adolescentes necessitam de orientação sobre a acne no dia-a-dia e a abordagem desse assunto deve ser feita de forma incisiva no cotidiano.