Jacqueline Domingues Tibúrcio

Susceptibility of Culex quinquefasciatus larvae to different insecticides

INTRODUCTION This study aimed to assess the susceptibility of Culex quinquefasciatus larvae to two pyrethroids (Cypermethrin and Deltamethrin), two derivatives of Avermectin (Ivermectin and Abamectin) and an organophosphate (Temephos). METHODS Third- and fourth-instar larvae of C. quinquefasciatus were exposed to different concentrations of insecticides (eleven repetitions) according to the World Health Organizations protocol. One hour after exposure, larvae were washed in dechlorinated tap water, transferred to plastic containers containing water without chlorine, fed and observed for periods of 24h until reaching adulthood. To determine lethal concentrations, the obtained values were submitted to regression analysis using the probit model with the Minitab 15 program. RESULTS The highest concentration used for the LC50 from probit analysis was for Temephos. The evaluated insecticides caused more pronounced larvae mortality in the first 24h with the exception of those exposed to ivermectin. CONCLUSIONS This study demonstrates that larvae are susceptible to all tested insecticides and that there is a need for monitoring the use of insecticides.

Factors associated with obesity and overweight in school-aged children

Evaluar los factores asociados con el exceso de peso (sobrepeso/obesidad) en los ninos matriculados en una escuela primaria de la red publica de Divinopolis, Minas Gerais, Brasil. Estudio transversal con 1.187 escolares de 6 a14 anos de edad de la red municipal de ensenanza de Divinopolis, Minas Gerais. La prevalencia de la obesidad y el sobrepeso se calculo a partir de los parametros de la Organizacion Mundial de la Salud, mediante el Programa WHO Anthro-Plus. Se utilizo la regresion logistica para identificar las variables asociadas con el exceso de peso, considerando un nivel de significacion del 5%. Se observo una prevalencia de 24,4% de sobrepeso. Los ingresos familiares y la educacion materna fueron determinantes con sobrepeso en la poblacion estudiada (p<0,05). El exceso de peso fue configurado como el principal problema de salud en escolares. Medidas de orden intersectorial deben ser implementadas por el gobierno con el fin de prevenir y reducir la prevalencia del sobrepeso y la obesidad en la escuela.Resumen pt: Avaliar os fatores associados ao excesso de peso (sobrepeso/obeso) em escolares matriculados no ensino fundamental da rede publica de ensino de Divinopol...

Fatores associados à obesidade e sobrepeso em escolares

Evaluar los factores asociados con el exceso de peso (sobrepeso/obesidad) en los ninos matriculados en una escuela primaria de la red publica de Divinopolis, Minas Gerais, Brasil. Estudio transversal con 1.187 escolares de 6 a14 anos de edad de la red municipal de ensenanza de Divinopolis, Minas Gerais. La prevalencia de la obesidad y el sobrepeso se calculo a partir de los parametros de la Organizacion Mundial de la Salud, mediante el Programa WHO Anthro-Plus. Se utilizo la regresion logistica para identificar las variables asociadas con el exceso de peso, considerando un nivel de significacion del 5%. Se observo una prevalencia de 24,4% de sobrepeso. Los ingresos familiares y la educacion materna fueron determinantes con sobrepeso en la poblacion estudiada (p<0,05). El exceso de peso fue configurado como el principal problema de salud en escolares. Medidas de orden intersectorial deben ser implementadas por el gobierno con el fin de prevenir y reducir la prevalencia del sobrepeso y la obesidad en la escuela.Resumen pt: Avaliar os fatores associados ao excesso de peso (sobrepeso/obeso) em escolares matriculados no ensino fundamental da rede publica de ensino de Divinopol...

Larvicidal activity of vegetable oils and esterified compounds against Culex quinquefasciatus (Diptera: Culicidae)

Control of Culex quinquefasciatus using chemical insecticides may result in the selection of resistant mosquito strains. Thus, the use of plant-derived products has been studied as alternative for the mosquito control. Fatty acid methyl esters (FAMEs) obtained by transesterification of vegetable oils may result in compounds with larvicidal potential against C. quinquefasciatus. However, little is known about the morphological, physiological or biochemical effects that these FAMEs may have on mosquito larvae. The present study reports the effects of these FAMEs in mosquito larvae. The FAMEs were obtained by transesterification of canola, corn, sunflower, and soybean oils with acid catalysis and the determination of FAMEs composition was done by gas chromatography-mass spectrometry (GC-MS). Larvae of C. quinquefasciatus were exposed to different concentrations of the vegetable oils and FAMEs. Thereby, different FAMEs showed LC50 values ranging from 42.32 to 196.27mg/L against C. quinquefasciatus larvae. The methyl ester obtained from sunflower oil showed the lowest LC50. Histology of C. quinquefasciatus larvae exposed to LC50 of FAMEs was performed and changes in the midgut and fat body morphology were identified. Therefore, larval mortality and changes in the internal organs suggested that FAMEs might be a promising new class of larvicidalcompounds. Cytotoxicity of FAMEs compounds was assessed with the HeLa human cell line and no effect was observed.

LOW BIRTH WEIGHT DETERMINANTS PRESENT IN THE STATEMENT OF LIVE BIRTH

The aim of this study was to identify the prevalence and the low birth weight (LBW) associated factors in Divinopolis, Brazil. Method: It is a cross-sectional study. 9,987 hospitalar birth records occurred between 2008 and 2011, were analysed. In univariate analysis, chi-square test and the odds ratio was used setting a significanceThe aim of this study was to identify the prevalence and the low birth weight (LBW) associated factors in Divinópolis, Brazil. Method: It is a cross-sectional study. 9,987 hospitalar birth records occurred between 2008 and 2011, were analysed. In univariate analysis, chi-square test and the odds ratio was used setting a significance * Acadêmica de Enfermagem da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: gisa_mesquita@ hotmail.com ** Estatística. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: jacqueline_tiburcio@ufsj. edu.br *** Enfermeira. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: valeria.oli.enf@gmail.com **** Enfermeiro. Professor da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: enftarcisio@yahoo.com.br ***** Enfermeira. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: elietealbano@ufsj.edu.br

Factores asociados a la obesidad y el sobrepeso en la escuela

Evaluar los factores asociados con el exceso de peso (sobrepeso/obesidad) en los ninos matriculados en una escuela primaria de la red publica de Divinopolis, Minas Gerais, Brasil. Estudio transversal con 1.187 escolares de 6 a14 anos de edad de la red municipal de ensenanza de Divinopolis, Minas Gerais. La prevalencia de la obesidad y el sobrepeso se calculo a partir de los parametros de la Organizacion Mundial de la Salud, mediante el Programa WHO Anthro-Plus. Se utilizo la regresion logistica para identificar las variables asociadas con el exceso de peso, considerando un nivel de significacion del 5%. Se observo una prevalencia de 24,4% de sobrepeso. Los ingresos familiares y la educacion materna fueron determinantes con sobrepeso en la poblacion estudiada (p<0,05). El exceso de peso fue configurado como el principal problema de salud en escolares. Medidas de orden intersectorial deben ser implementadas por el gobierno con el fin de prevenir y reducir la prevalencia del sobrepeso y la obesidad en la escuela.Resumen pt: Avaliar os fatores associados ao excesso de peso (sobrepeso/obeso) em escolares matriculados no ensino fundamental da rede publica de ensino de Divinopol...

DETERMINANTES DEL BAJO PESO AL NACER PRESENTES EN LA DECLARACIÓN DE NACIDO VIVO

The aim of this study was to identify the prevalence and the low birth weight (LBW) associated factors in Divinopolis, Brazil. Method: It is a cross-sectional study. 9,987 hospitalar birth records occurred between 2008 and 2011, were analysed. In univariate analysis, chi-square test and the odds ratio was used setting a significanceThe aim of this study was to identify the prevalence and the low birth weight (LBW) associated factors in Divinópolis, Brazil. Method: It is a cross-sectional study. 9,987 hospitalar birth records occurred between 2008 and 2011, were analysed. In univariate analysis, chi-square test and the odds ratio was used setting a significance * Acadêmica de Enfermagem da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: gisa_mesquita@ hotmail.com ** Estatística. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: jacqueline_tiburcio@ufsj. edu.br *** Enfermeira. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: valeria.oli.enf@gmail.com **** Enfermeiro. Professor da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: enftarcisio@yahoo.com.br ***** Enfermeira. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: elietealbano@ufsj.edu.br

DETERMINANTES DO BAIXO PESO AO NASCER A PARTIR DAS DECLARAÇÕES DE NASCIDOS VIVOS

The aim of this study was to identify the prevalence and the low birth weight (LBW) associated factors in Divinopolis, Brazil. Method: It is a cross-sectional study. 9,987 hospitalar birth records occurred between 2008 and 2011, were analysed. In univariate analysis, chi-square test and the odds ratio was used setting a significanceThe aim of this study was to identify the prevalence and the low birth weight (LBW) associated factors in Divinópolis, Brazil. Method: It is a cross-sectional study. 9,987 hospitalar birth records occurred between 2008 and 2011, were analysed. In univariate analysis, chi-square test and the odds ratio was used setting a significance * Acadêmica de Enfermagem da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: gisa_mesquita@ hotmail.com ** Estatística. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: jacqueline_tiburcio@ufsj. edu.br *** Enfermeira. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: valeria.oli.enf@gmail.com **** Enfermeiro. Professor da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: enftarcisio@yahoo.com.br ***** Enfermeira. Professora da Universidade Federal de São João Del Rei. Divinópolis, Brasil. E-mail: elietealbano@ufsj.edu.br