RESUMO
BACKGROUND: Even one hundred years after being originally identified, aspects of the taxonomy of the sand fly Lutzomyia longipalpis, the principal vector of Leishmania infantum in the Americas, remain unresolved for Brazilian populations of this vector. The diversity of morphological, behavioral, biochemical, and ethological characters, as well as the genetic variability detected by molecular markers are indicative of the presence of a complex of species. METHODS: In this study, a 525 bp fragment of the period gene was used to evaluate sympatric populations of L. longipalpis. A combination of probabilistic methods such as maximum likelihood and genetic assignment approach to investigate sympatric species of L. longipalpis were applied in three populations of Northeast Brazil. RESULTS: Fixed polymorphisms in geographically isolated populations of L. longipalpis from two localities in the state of Ceará and one in the state of Pernambuco, Brazil, was identified in a 525 bp fragment of the gene period (per). Our results suggest a direct relationship between the number of spots found in males' tergites and the genetic variation in cryptic species of L. longipalpis. The fragment used in this study revealed the nature of the ancestral morphotype 1S. CONCLUSION: New polymorphisms were identified in the gene per which can be used as a genetic barcode to sympatric taxonomy of L. longipalpis. The per gene fragment confirmed the presence of two siblings species of L. longipalpis in Sobral and showed that these same species are present in two other localities, representing an expansion within the L. longipalpis species complex with regards to the states of Ceará and Pernambuco.
Assuntos
Distribuição Animal , Regulação da Expressão Gênica/fisiologia , Psychodidae/genética , Animais , Sequência de Bases , Brasil , DNA/genética , Proteínas de Insetos/genética , Proteínas de Insetos/metabolismo , Dados de Sequência Molecular , Filogenia , Polimorfismo GenéticoRESUMO
As iniciativas nacionais que se propõem contribuir para a reorientação da formação e do modelo de atenção nos levaram a descrever a experiência de implantação do Programa de Educação para o Trabalho (PET)-Saúde/Vigilância em Saúde (VS) em Sobral, Ceará. Trata-se de estudo descritivo, do tipo relato de experiência, vivenciado por estudantes dos cursos de enfermagem da Universidade Estadual Vale do Acaraú (UVA) e medicina e odontologia da Universidade Federal do Ceará (UFC), tutores e preceptores do PET-Saúde/VS. As informações foram registradas pelos tutores e preceptores durante as atividades desenvolvidas desde a implantação do programa (julho de 2010). O processo de trabalho desempenhado no PET-Saúde/VS compreende três eixos estruturantes que se intercomunicam, constando vivências teórico-conceituais, vivências no serviço e vivências de pesquisa. Para garantir a interface ensino-serviço e a integração entre as ações de vigilância em saúde e atenção básica, construímos uma 'tecnologia' pedagógica que chamamos de tecnologia de educação permanente na vigilância em saúde. A experiência permitiu aos estudantes uma visão mais ampla, acerca das condições de saúde da população, da importância do conhecimento sobre problemas locais para o trabalho da vigilância em saúde, a fim de prestar assistência qualificada e voltada para a realidade de cada território.
The Brazilian initiatives that propose to contribute to redirecting training and the care model led us to describe the experience of deploying of the Education for Work Program (PET) - Health/Health Surveillance (HS) in Sobral, northeastern Brazil. This is a descriptive, experience-reporting study, experienced by nursing students at the Vale do Acaraú State University (UVA) and medicine and dentistry students at the Federal University of Ceará (UFC), tutors, and PET-Health/HS preceptors. The information was recorded by the tutors and preceptors during the activities undertaken ever since the program was deployed (July 2010). The work process performed under PET-Health/HS comprises three intercommunicating structural axes, consisting of theoretical and conceptual experiences, experiences in service, and research experiences. To ensure the interface between teaching and service and integration between health surveillance and primary care, we built an educational 'technology' we call a permanent education in health surveillance technology. The experience afforded the students a broader view about the population's health conditions and on the importance of understanding local issues for health surveillance in order to provide qualified care targeted at the reality at each territory.
