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1.
Mem. Inst. Oswaldo Cruz ; 102(4): 523-529, June 2007. ilus, graf
Article in English | LILACS | ID: lil-454808

ABSTRACT

An ovitrap (BR-OVT) based on physical and chemical stimuli for attracting gravid Culex quinquefasciatus (Diptera: Culicidae) females was developed and evaluated under laboratory and field conditions. Attractants were assayed using alternative chamber bioassays prior to being used in the BR-OVT oviposition trap. A significant preference of gravid females for sites containing conspecific egg rafts was observed, as a response to the natural oviposition pheromone, as well as for sites treated with the synthetic pheromone erythro-6-acetoxy-5-hexadecanolide. Five- to 20-day old grass infusion was strongly attractive to gravid females for laying eggs. On the other hand, entomopathogenic Bacillus sphaericus (Bs) did not influence the choice of an oviposition site when used in combination with grass infusion and can therefore be used as a larvicide in ovitraps. Results from field trials showed that the BR-OVT with grass infusion and with or without Bs works as a preferred oviposition site for Cx. quinquefasciatus. The BR-OVT was more effective for egg collection when placed indoors and comparison with the number of egg rafts laid in cesspits over 40 days indicates that this very simple ovitrap may be a useful tool for monitoring populations of the most important of the vectors of bancroftian filariasis.


Subject(s)
Animals , Female , Culex/physiology , Mosquito Control/methods , Oviposition/physiology , Pheromones/pharmacology , Biological Assay , Culex/anatomy & histology , Laboratories , Mosquito Control/instrumentation , Time Factors
2.
JBP, j. bras. odontopediatr. odontol. bebê ; 5(26): 294-301, jul.-ago. 2002. ilus, CD-ROM
Article in Portuguese | LILACS, BBO | ID: biblio-852084

ABSTRACT

O atual paradigma referente à doença periodontal reforça sua relação com as doenças sistêmicas. A periodontite pode ser um fator de risco para certas doenças sistêmicas. De outro modo, algumas doenças sistêmicas podem predispor o indivíduo ao desenvolvimento de alterações periodontais. O diabetes melitus é um exemplo dessa interação. As modificações na composição da microbiota subgengival, a alteração no metabolismo do colágeno e o prejuízo funcional dos neutrófilos, presentes nos pacientes diabéticos, são fatores que justificam a maior severidade da doença periodontal nesses pacientes. Apresentamos o caso clínico de uma criança de 9 anos de idade, gênero masculino, portadora de periodontite agressiva generalizada e diabetes mellitus insulino-dependente


Subject(s)
Humans , Male , Child , Therapeutics
3.
Rev. saúde pública ; 34(3): 314-5, jun. 2000.
Article in Portuguese | LILACS | ID: lil-263765

ABSTRACT

Pela primeira vez é registrada a presença do Aedes albopictus em remanescentes de Mata Atlântica, localizada em área urbana em Recife (Pernambuco, Brasil). As coletas foram realizadas em isca humana e em criadouros de formas jovens (ocos de árvores, bambus, bromélias e pneu). A presença de Ae. albopictus na regiäo metropolitana do Recife representa um risco potencial do inter-relacionamento dessa espécie de mosquito com a populaçäo


Subject(s)
Animals , Aedes , Dengue/transmission , Disease Vectors , Tropical Ecosystem , Insect Vectors , Trees
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