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1.
Arch. latinoam. nutr ; 73(supl. 2): 123-130, sept. 2023. tab, graf
Artigo em Espanhol | LILACS, LIVECS | ID: biblio-1537260

RESUMO

Introducción. El Capítulo Nacional URUGUAYFOODS, perteneciente a la Red Latinoamericana de Composición de Alimentos (LATINFOODS, INFOODS, FAO), realizó recientemente una investigación para identificar cuáles tablas/bases de datos de composición de alimentos (TCA/ BDCA) utilizan los profesionales nacionales, así como la percepción de sus limitaciones, con el fin de ser tenidos en cuenta en la creación de la nueva BDCA nacional. Objetivo. Caracterizar el uso de las TCA/BDCA de composición de alimentos y describir las características y limitaciones de las mismas, mediante el análisis de la encuesta realizada a profesionales del área de salud, nutrición y alimentos de Uruguay en el año 2022. Materiales y métodos. Se trató de un estudio cuantitativo, descriptivo y transversal. La información fue obtenida a través de una encuesta de participación voluntaria. La muestra estuvo conformada por 94 profesionales nacionales. Se analizó la variable uso y frecuencia de uso de dichas herramientas respecto a la edad y población específica con la que trabaja el profesional encuestado. Resultados. La preferencia de uso fue la base de datos USDA y CENEXA, antes que la TCAU, resultando en una debilidad importante en todas las áreas en donde se utilicen estos datos, pues no refleja los hábitos ni costumbres de la población. Conclusiones. Los potenciales usuarios de la nueva BDCA nacional pretenden que sea de acceso fácil y gratuito, en idioma español, en formato digital, con información actualizada y con posibilidad de elección de datos en porción o cada 100 gramos(AU)


Introduction. The URUGUAYFOODS National Chapter, belonging to the Latin American Food Composition Network (LATINFOODS, INFOODS, FAO), recently carried out an investigation to identify which food composition tables and databases (TCA and BDCA) are used by national professionals, as well as the perception of their limitations, in order to be taken into account in the creation of the new national BDCA. Objective. Characterize the use of TCAs and BDCAs for food composition and describe their characteristics and limitations through the analysis of the survey carried out among professionals in the area of health, nutrition, and food in Uruguay in 2022. Materials and methods. It was a quantitative, descriptive, and cross-sectional study. The information was obtained through a voluntary participation survey. The sample consisted of 94 national professionals. The variable use and frequency of these tools were analyzed with respect to the age and specific populations with which the surveyed professional works. Results. The preference for use was the USDA and CENEXA databases rather than the TCAU, resulting in a significant weakness in all areas where these data are used since they do not reflect the habits and customs of the population. Conclusions. Potential users of the new national BDCA want it to be easily and freely accessible, in Spanish, in digital format, with up-to-date information, and with the possibility of choosing data in portions or every 100 grams(AU)


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Tabela de Composição de Alimentos , Análise de Alimentos , Ciências da Nutrição
2.
Molecules ; 20(8): 14595-610, 2015 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-26274947

RESUMO

The current pharmacological Chagas disease treatments, using Nifurtimox or Benznidazole, show limited therapeutic results and are associated with potential side effects, like mutagenicity. Using random screening we have identified new chemotypes that were able to inhibit relevant targets of the Trypanosoma cruzi. We found 3H-[1,2]dithioles with the ability to inhibit Trypanosoma cruzi triosephosphate isomerase (TcTIM). Herein, we studied the structural modifications of this chemotype to analyze the influence of volume, lipophilicity and electronic properties in the anti-T. cruzi activity. Their selectivity to parasites vs. mammalian cells was also examined. To get insights into a possible mechanism of action, the inhibition of the enzymatic activity of TcTIM and cruzipain, using the isolated enzymes, and the inhibition of membrane sterol biosynthesis and excreted metabolites, using the whole parasite, were achieved. We found that this structural framework is interesting for the generation of innovative drugs for the treatment of Chagas disease.


Assuntos
Tolueno/análogos & derivados , Tripanossomicidas/química , Tripanossomicidas/farmacologia , Trypanosoma cruzi/efeitos dos fármacos , Animais , Linhagem Celular , Relação Dose-Resposta a Droga , Avaliação Pré-Clínica de Medicamentos , Macrófagos/efeitos dos fármacos , Camundongos , Esteróis/antagonistas & inibidores , Esteróis/biossíntese , Tolueno/síntese química , Tolueno/química , Tolueno/farmacologia , Tripanossomicidas/síntese química , Trypanosoma cruzi/metabolismo
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