PESQUISA FAPESP ONLINE:A tecnologia incorporada à Divulgação Científica

Apesar de o Brasil não apresentar um cenário propício para uma Divulgação Científica eficiente à formação cidadã, nota-se um considerável crescimento no apoio às pesquisas nos últimos anos, principalmente subsidiado pelo fomento de fundações governamentais de diferentes estados. Encontramos, na atualidade, um novo método de expansão informativa, caracterizada pela migração dos meios de comunicação convencionais à internet. Frente a esse desenvolvimento, diversos veículos divulgadores de ciência, com destaque a Pesquisa FAPESP, passaram a empregar esse novo canal no complemento de suas mensagens. Nota-se, porém, uma adoção ainda fragilizada, deixando de lado alguns dos princípios básicos do ciberespaço, tais como a hipertextualidade, por exemplo. A intenção deste trabalho é analisar as ferramentas utilizadas pela Pesquisa FAPESP Online, assim como apontar diversas outras técnicas que poderiam ser inseridas no contexto da Divulgação Científica virtual. Para isso, foi realizada uma entrevista com os editores da revista, bem como uma leitura do portal, com subsídios teóricos da Análise do discurso. Conclui-se que as técnicas praticadas pelo site, embora ainda escassas se comparadas aos demais segmentos do universo digital, são bem utilizadas pelo veículo, preenchendo a lacuna existente na DC e facilitando o acesso da população sobre pesquisas nacionais.(AU)

TV Digital aberta no Brasil

O presente trabalho analisa os importantes desafios que as novas tecnologias e as transformações na sociedade pós-industrial estão impondo à TV digital brasileira e ao seu modelo de negócios. Tem como principal objetivo realizar uma reflexão sobre a viabilidade financeira das emissoras abertas com a chegada da TV digital. Para tanto, analisa o modelo de negócios anterior, da TV analógica, baseado nos comerciais de trinta segundos e como esta forma poderá ser afetada inviabilizando a estrutura de produção e distribuição de conteúdo pelas emissoras abertas digitais. Ainda, busca evidenciar demais fatores que contribuem para a migração da audiência para outras plataformas de distribuição de conteúdo, refutando o senso comum de que o acesso à internet banda larga é a principal causa da queda dos índices de audiência. Este estudo se utiliza de uma ampla bibliografia que extrapola o campo específico da Comunicação e amplia o olhar sobre a indústria televisiva aberta no Brasil, enumerando fragilidades do setor e apontando possíveis estratégias para que a televisão brasileira possa se adaptar à nova estrutura da comunicação que está se formando em nosso país.

BOLSA FAMÍLIA: IMPORTANTE DETERMINANTE PARA A EDUCAÇÃO E CRESCIMENTO SOCIOECONÔMICO DO BRASIL

Esta dissertação trata de um tema relativamente novo, com literatura escassa, praticamente sem estudos teóricos que o abordem. Referenciais são encontrados em publicações feitas em seminários e palestras bem como em artigos e notas jornalísticas. Esta dissertação se trata de trabalho exploratório, analítico descritivo com base documental. O Programa Bolsa Família, tema central deste trabalho, é uma ferramenta para distribuição de renda que funciona de forma simples e tem sido efetiva para o atendimento de famílias que vivem abaixo da linha de pobreza. Ele é resultado da fusão de vários outros programas dispersos e com efetividade questionável Bolsa Escola, Auxílio Gás e Cartão Alimentação. O Programa Bolsa Família beneficia famílias em situação de pobreza com renda mensal de R$ 70 a R$ 140 per capita e em extrema pobreza com renda mensal abaixo de R$ 70 reais per capita. Também estabelece condicionalidades de educação e saúde. Atualmente, há cerca de 13 milhões de famílias inscritas no Programa Bolsa Família que cumprem as condições do Cadastro Único esta é praticamente a totalidade das famílias pobres segundo critérios do PNAD 2006 (Pesquisa Nacional de Domicílios). Na realidade, houve substancial injeção de recursos em áreas outrora relegadas ao acaso, criando novos consumidores, bem como empreendedores, além de atrair investimentos. Quanto à educação, nota-se que há redução do analfabetismo. Há um crescimento vegetativo do Índice de Desenvolvimento Humano (IDH) no qual o Brasil situa-se em 84⁰ lugar dentre as 187 nações controladas pelo PNUD (Programa das Nações Unidas para o Desenvolvimento) em 2011. As variáveis que compõem o índice crescem timidamente, destaca-se queda no item expectativa de escolaridade esperada das crianças em idade de ingresso na escola (no Brasil, aos seis anos), que caiu no período 2000-2011, esse fato pode indicar falha estrutural no ensino brasileiro. Esse estudo indica que há desenvolvimento socioeconômico em áreas carentes, particularmente na Região Nordeste. Observa-se também a reversão da migração que historicamente era de norte/nordeste a sudeste. Também nota-se redução da taxa de fecundidade das brasileiras, o que é vantajoso. O Brasil também está com a vantagem do Bônus demográfico , quando a população economicamente ativa supera a população dependente, o que é um excelente fator de crescimento por atrair investimentos. Apesar de melhorias observadas na década 2000-2010, elas ainda são insuficientes. Quanto ao desenvolvimento humano , o Brasil está muito distante das nações desenvolvidas, com IDH de 0,718, que cresceu na última década à taxa de 0,769% ao ano. Nesse ritmo, até alcançarmos o IDH norueguês -- primeiro colocado, ou o australiano -- segundo colocado, que é de 0,943 serão necessários 35/36 anos. Isso nos leva a pensar que, a não ser que o acaso nos ajude, o sonho de nos juntarmos aos primeiros é questionável. Com respeito ao Programa Bolsa Família, esse prova ser uma frente social para a eliminação da desigualdade, seus beneficiários eram classificados como pobres e extremamente pobres e foram resgatados.

A RELIGIÃO NO CONFLITO ENTRE ISRAEL E PALESTINA NO CONTEXTO DA CRIAÇÃO DO ESTADO JUDAICO: ASPECTOS HISTÓRICOS (1896-1948)

O presente trabalho analisa o papel da religião no conflito entre Israel e Palestina, principalmente no contexto da implantação do Estado de Israel, em 1948. A análise toma como delimitação histórica do conflito o período de 1896 a 1948, quando ocorre a migração das primeiras levas de judeus para os territórios palestinos. A pergunta inicial é sobre como judeus e muçulmanos se relacionavam nos primeiros anos de imigração até a criação do Estado de Israel. O problema principal a ser esclarecido é como a construção cultural ocidental em relação aos palestinos interferiu no conflito, principalmente no que tange à tomada da terra e à construção de um novo país dentro de um já existente, socialmente, religiosamente e culturalmente. Finalmente a pesquisa pergunta pela repercussão do conflito entre israelenses e palestinos no campo religioso protestante, principalmente entre grupos conservadores e fundamentalistas deste ramo do cristianismo. A pesquisa é totalmente bibliográfica e toma como referência as teorias pós-coloniais para debater a história do território, no que se refere aos aspectos religiosos do conflito.

Espessura da zona de transição do manto sob a Província Borborema, NE Brasil, através de conversões Ps telessísmicas

The mantle transition zone is defined by two seismic discontinuities, nominally at 410 and 660 km depth, which result from transformations in the mineral olivine. The topography of these discontinuities provides information about lateral temperature changes in the transition zone. In this work, P-to-S conversions from teleseismic events recorded at 32 broadband stations in the Borborema Province were used to determine the transition zone thickness beneath this region and to investigate whether there are lateral temperature changes within this depth range. For this analysis, stacking and migration of receiver functions was performed. In the Borborema Province, geophysical studies have revealed a geoid anomaly which could reflect the presence of a thermal anomaly related to the origin of intraplate volcanism and uplift that marked the evolution of the Province in the Cenozoic. Several models have been proposed to explain these phenomena, which include those invoking the presence of a deep-seated mantle plume and those invoking shallower sources, such as small-scale convection cells. The results of this work show that no thermal anomalies are present at transition zone depths, as significant variations in the transition zone thickness were not observed. However, regions of depressed topography for both discontinuities (410 and 660 km) that approximately overlap in space were identified, suggesting that lower-thanaverage, lateral variations in seismic velocity above 410 km depth may exist below the the Borborema Province. This is consistent with the presence of a thermally-induced, low-density body independently inferred from analysis of geoid anomalies. Therefore, the magma source responsible for the Cenozoic intraplate volcanism and related uplift in the Province, is likely to be confined above the upper mantle transition zone.

Análise estrutural e avaliação do efeito condroitim sulfato extraído de tilápia (Oreochromis niloticus) em modelo de peritonite aguda

Chondroitin sulfate (CS) is a naturally glycosaminoglycan found in the extracellular matrix of connective tissues and it may be extracted and purified those tissues. CS is involved in various biological functions, which may be related to the having structural variability, despite the simplicity of the linear chain structure from this molecule. Researches in biotechnology and pharmaceutical field with wastes from aquaculture has been developed in Brazil. In recent decades, tilapia (Oreochromis niloticus), native fish from Africa, has been one of the most cultivated species in various regions of the world, including Brazil. The tilapia farming is a cost-effective activity, however, it generates large amount of wastes that are discarded by producers. It is understood that waste from tilapia can be used in research as a source of molecules with important biotechnological applications, which also helps in reducing environmental impacts and promote the development of an ecofriendly activity. Thus, nile tilapia viscera were subjected to proteolysis, then the glycosaminoglycans were complexed with ion exchange resin (Lewatit), it was fractionated with increasing volumes of acetone and purified by ion exchange chromatography DEAE-Sephacel. Further, the fraction was analyzed by agarose gel electrophoresis and nuclear magnetic resonance (NMR). The electrophoretic profile of the compound together the analysis of 1H NMR spectra and the HSQC correlation allow to affirm that the compound corresponds to a molecule like chondroitin sulfate. MTT assay was used to assess cell viability in the presence of CS tilapia isolated and showed that the compound is not cytotoxic to normal cells such as cells from the mouse embryo fibroblast (3T3). Then, this compound was tested for the ability to reduce the influx of leukocytes in model of acute peritonitis (in vivo) induced by sodium thioglycolate. In this context, it was done total and differential leukocytes counting in the blood and peritoneal fluid collected respectively from vena cava and the peritoneal cavity of the animals subjected to the experiment. The chondroitin sulfate for the first time isolated from tilapia (CST ) was able to reduce the migration of leukocytes to the peritoneal cavity of inflamed mice until 80.4 per cent at a dose 10µg/kg. The results also show that there was a significant reduction (p<0.001) of the population of polymorphonuclear leukocytes from peritoneal cavity in the three tested doses (0.1µg/kg; 1µg/kg and 10µg/kg) when it was compared to the positive control (just thioglycolate). Therefore, since the CST structure and mechanism of action has been completely elucidated, this compound may have potential for therapeutic use in inflammatory diseases

Avaliação da atividade anti-inflamatória do extrato aquoso, frações e compostos identificados nos frutos de Hancornia Speciosa Gomes (Apocynaceae)

Hancornia speciosa Gomes (Apocynaceae), popularly known as ‘mangabeira’, has been used in folk medicine to treat inflammatory disorders, hypertension, dermatitis, diabetes, liver diseases and stomach disorders. Regarding the Hancornia speciosa fruits, the ethnobotany indicates its use especially for treating inflammation and tuberculosis. However, no study has been done so far to prove such biological activities. The objective was evaluation anti-inflammatory activity from the fruits of Hancornia speciosa Gomes (mangabeira). Aqueous extract was prepared by decoction, subsequently submitted the liquid-liquid fractionation. The secondary metabolites were identified by high performance liquid chromatography coupled with detector diode array (HPLC-DAD) and liquid chromatography diode array detector coupled with mass spectrometry (LC-DAD-MS). The anti-inflammatory properties of the aqueous extract, dichloromethane (CH2Cl2), ethyl acetate (EtOAc) and n-butanol (n-BuOH) fractions of the fruits from H. speciosa, as well as rutin and chlorogenic acid were investigated using in vitro and in vivo models. In vivo tests comprised the xylene-induced ear edema that was measured the formation of edema, carrageenan-induced peritonitis was evaluated the total leukocytes at 4h and zymosan-induced air pouch was measured the total leukocytes and differential cell count at 6, 24 and 48 hours, whereas in vitro tests were evaluated levels of cytokines IL-1β, IL-6, IL-12 and TNF-α using ELISA obtained of carrageenan-induced peritonitis model. The results showed the presence of rutin and chlorogenic acid were detected in the aqueous extract from H. speciosa fruits by HPLC-DAD and LC-DAD-ME. Furthermore, the aqueous extracts and fractions, as well as rutin and chlorogenic acid significantly inhibited the xilol-induced ear edema and reduced cell migration in the animal models such as carrageenan-induced peritonitis and zymosan-induced air pouch. In addition, reduced levels of cytokines IL-1β, IL-6, IL-12 and TNF-α were observed. This is the first study that demonstrated the anti-inflammatory effect of aqueous extract from Hancornia speciosa fruits against different inflammatory agents in animal models, suggesting that their bioactive molecules, especially rutin and chlorogenic acid contributing, at least in part, to the anti-inflammatory effect of aqueous extract. These findings support the widespread use of Hancornia speciosa in popular medicine and demonstrate that this aqueous extract has therapeutic potential for the development of a herbal drugs with anti-inflammatory properties.

Análise fitoquímica e avaliação das atividades anti-inflamatória, antipeçonhenta e citotóxica de extratos aquosos de Aspidosperma pyrifolium e Ipomoea asarifolia

Envenomation caused by venomous animals, mainly scorpions and snakes, are a serious matter of public health. Tityus serrulatus is considered the most venomous scorpion in South America because of the high level of toxicity of its venom. It is responsible for causing serious accidents, mainly with kids. The species Bothrops jararaca is a serpent that has in its venom a complex mixture of enzyme, peptides and other molecules. The toxins of the venom of B. jararaca induce local and systemic inflammatory responses. The treatment chosen to serious cases of envenomation is the intravenous administration of the specific antivenom. However, the treatment is not always accessible to those residents in rural areas, so that they use medicinal plant extracts as the treatment. In this context, aqueous extracts, fractions and isolated compounds of Aspidosperma pyrifolium (pereiro) and Ipomoea asarifolia (salsa, salsa-brava), used in popular medicine, were studied in this research to evaluate the anti-inflammatory activity in the peritonitis models induced by carrageenan and peritonitis induced by the venom of the T. serrulatus (VTs), and in the local oedema model and inflammatory infiltrate induced by the venom of the B. jararaca, administrated intravenously. The results of the assays of cytotoxicity, using the MTT, showed that the aqueous extracts from the plant species presented low toxicity to the cells that came from the fibroblast of the mouse embryo (3T3).The chemical analysis of the extracts by High Performance Liquid Chromatography revealed the presence of the rutin flavonoid, in A. pyrifoliu, and rutin, clorogenic acid and caffeic acid, in I. asarifolia. Concerning the pharmacological evaluation, the results showed that the pre-treatment using aqueous extracts and fractions reduced the total leukocyte migration to the abdominal cavity in the peritonitis model caused by the carrageenan and in the peritonitis model induced by the T. serulatus venom. Yet, these groups presented anti-oedematous activity, in the local oedema model caused by the venom of the B. jararaca, and reduced the inflammatory infiltrate to the muscle. The serum (anti-arachnid and anti-bothropic) specific to each venom acted inhibiting the inflammatory action of the venoms and were used as control. The compounds identified in the extracts were also tested and, similar to the plant extracts, showed meaningful anti-inflammatory effects, in the tested doses. Thus, these results are indicating the potential anti-inflammatory activity of the plants studied. This is the first research that evaluated the possible biological effects of the A. pyrifolium and I. asarifolia, showing the biological potential that these species have.

Avaliação anti-inflamatória e antipeçonhenta das espécies Hancornia speciosa e Mimosa tenuiflora em modelos experimentais de inflamação e envenenamento induzidos por Bothrops jararaca e Tityus serrulatus

Accidents caused by venomous animals represents a significant and serious public health problem in certain regions of Brazil, as well as in other parts of the world by the frequency with which they occur and the mortality they cause. The use of plant extracts as an antidote for poisoning cases is an ancient practice used in many communities that have no access to antivenom. Medicinal plants represent an important source of obtaining bioactive compounds able to assist directly in the treatment of poisoning or indirectly supplementing serum therapy currently used. The aim of this study was to evaluate the effect of extracts, fractions and isolated compounds from M. tenuiflora and H. speciosa in the inflammatory process induced by carrageenan and the venom of B. jararaca and T. serrulatus. The results showed that both M. tenuiflora and H. speciosa were capable of inhibiting cell migration and cytokines levels in peritonitis induced by carrageenin and venom of T. serrulatus. In poisoning by B. jararaca model, mice treated with the plants in studies decreased the leukocyte influx into the peritoneal cavity. Finally the M. tenuiflora and H. speciosa had antiphlogistic activity, reducing edema formation and exerted inhibitory action of leukocyte migration in local inflammation induced by the venom of B. jararaca. Through of Thin Layer Chromatography (TLC) analysis was possible identified the presence of flavonoids ,saponins and/or terpenes in aqueous extract of M. tenuiflora. By High Performance Liquid Chromatography analysis, it was possible to identify the presence of rutin and chlorogenic acid in aqueous extract of H. speciosa. We conclude that the administration of extracts, fractions and isolated compounds of H. speciosa and M. tenuiflora resulted in inhibition of the inflammatory process in different experimental models. This study demonstrates for the first time the effect of M. tenuiflora and H. speciosa in inhibition of the inflammation caused by B. jararaca and T. serrulatus venom.

Gestão de resíduos sólidos domiciliares na cidade de Chibuto, província de Gaza Moçambique

This study analyzes the process of generation and management of solid waste in the Municipality of the City of Chibuto-Mozambique, drawing on the different approaches towards allocation and the socio-environmental implications resulting from this process and waste spatial distribution. To answer these objectives a questionnaire was administered to 367 households distributed in 14 neighborhoods of the city to elicit information on how solid waste is treated and what could be its impact on public health of the residents. From this perspective, the questionnaire gasp information from immigrant residents regarding both their origin, and socio economic condition. Apart from the questionnaire, semi-structured interviews were conducted to staff working on the Sanitation Sector, Urbanization Sector of the Chibuto Municipality, including the Health Service, and Women and Social Affairs. In addition to these data collection methods, for further discussion on the subject, the researcher draw a theoretical framework grounded through literature review, as well as systematic observation of the phenomenon. Research findings revealed that the solid waste collection services provided by the Chibuto Municipality do not follow the procedures laid down in the Regulation on Solid Waste Management, which advocates environmentally safe, sustainable, and complete management of waste. First, the services use open dumps for waste management. Secondly, waste collection does not cover all citizens living in the neighborhoods governed by the municipality, due to financial, technical, and organizational reasons. More importantly, the study found that due to this failure, more than 90% of households surveyed continue to use the traditional methods on waste management which include burning, or the burial techniques. On the other hand, some citizens throw waste on the streets, a method that threatens public health because it increases cases of diseases related to sanitation problems such as (diarrhea and malaria), especially in suburban and peripheral urban areas. Concerning with the above mentioned problems which constitute a real threat to the public health, some ways are proposed for more sustainable and spatially appropriate solid waste management through recycling, waste sorting, composting, reuse, and reduction of solid waste generation.

Educação profissional e tecnológica de turismo no Brasil: análise através da percepção de docentes da rede federal de educação

The increasing pace of technological change and innovation in the labor market are important landmarks that contribute to accelerate the improvement of vocational and technological education. The need to analyze the educational processes is correlated with this dynamic in order to respond to the pedagogical processes and inherent to the labor market needs in evidence. This research theme is centered on targeted education process for tourist activity that is premised on improving the quality of services, taking as analysis parameter technological higher education in the federal education network (IF), covering the design, similarity and the differences in the courses offered, the axis of Tourism, Hospitality and Leisure instituted by the National catalog Technological Colleges and the National Science and Technology Department in Brazil. The research also aims to investigate the design and implementation of these upper and search courses emphasize the importance of training for students. The research is exploratory qualitative from survey data on the websites of the Ministry of Education, was adopted as a research procedure the questionnaire sent to coordinators via institutional email courses, to collect data in order to obtain results about Technological Education Federal Education Network. The survey results show that most courses offered by technological higher education in the federal education network (IF) is the Tourism Management, we noted that this option is the result of the ease in assembling the structure of the courses in relation to others; teachers have this type of education a more practical option for students coming to the conclusion that the courses undergo a fragile process, stating that the formation lies only in the student's interest in obtaining the higher diploma course without concern for quality this academic background, demand for courses is by being fast graduation. Even as a result of the design and development of Political and Pedagogical projects it was found that they are built in the most collegial many of them without the participation of a pedagogue; about the permanence of the student identified a high dropout rate, occurring in some campuses to migration to the traditional higher education, a BA in tourism. Thus, this work aimed to contextualize the technological higher education in tourism, presenting the reality of the current situation, aiming to discuss the phenomenon from the description made by all subjects and the research object, knowledge of which is due to experience the federal education network that was able to bring the essence of the matter.

Estudo imunoistoquímico do CD34 e podoplanina na doença periodontal

Angiogenesis and lymphangiogenesis are changes that occur due to gingival inflammation caused by microorganisms present in the biofilm, as well as the migration of immune cells and secretion of mediators in the aggressed site. This study aimed to research angiogenesis and lymphangiogenesis in 90 specimens of clinically healthy, with gingivitis and chronic periodontitis gingival tissue biopsies. The histological sections were evaluated by hematoxylin and eosin and the immunohistochemical technique through immunostaining for CD34 and podoplanin. To evaluate the angiogenic and lymphangiogenic indexes we performed a microvessel counting technique. The results showed that there is a correlation between the indexes (p = 0.030), however, we observed that periodontitis showed less lymphatic vessels than clinically healthy gingival tissue (p = 0.016). Podoplanin showed positive staining in the basal layers of the epithelium, and we observed a relationship between immunostaining intensity and the intensity of inflammatory infiltrate, with more intense staining in the presence of severe inflammatory infiltrate (p = 0.033). For this study, we concluded that there are fewer blood vessels in periodontitis compared with clinically healthy gingiva. The signaling present in the inflammatory process and the actual role of gingival blood and lymphatic vasculature are not fully understood, with further studies on angiogenesis and lymphangiogenesis being suggested.

Estudo imunoistoquímico do CD34 e podoplanina na doença periodontal

Angiogenesis and lymphangiogenesis are changes that occur due to gingival inflammation caused by microorganisms present in the biofilm, as well as the migration of immune cells and secretion of mediators in the aggressed site. This study aimed to research angiogenesis and lymphangiogenesis in 90 specimens of clinically healthy, with gingivitis and chronic periodontitis gingival tissue biopsies. The histological sections were evaluated by hematoxylin and eosin and the immunohistochemical technique through immunostaining for CD34 and podoplanin. To evaluate the angiogenic and lymphangiogenic indexes we performed a microvessel counting technique. The results showed that there is a correlation between the indexes (p = 0.030), however, we observed that periodontitis showed less lymphatic vessels than clinically healthy gingival tissue (p = 0.016). Podoplanin showed positive staining in the basal layers of the epithelium, and we observed a relationship between immunostaining intensity and the intensity of inflammatory infiltrate, with more intense staining in the presence of severe inflammatory infiltrate (p = 0.033). For this study, we concluded that there are fewer blood vessels in periodontitis compared with clinically healthy gingiva. The signaling present in the inflammatory process and the actual role of gingival blood and lymphatic vasculature are not fully understood, with further studies on angiogenesis and lymphangiogenesis being suggested.

Métodos de avaliação nutricional para a suplementação oral com zinco em crianças pré-púberes não deficientes em zinco

Background: Zinc is an essential nutrient that is required for numerous metabolic functions, and zinc deficiency results in growth retardation, cellmediated immune dysfunction, and cognitive impairment. Objective: This study evaluated nutritional assessment methods for zinc supplementation in prepubertal nonzinc- deficient children. Design: We performed a randomised, controlled, triple-blind study. The children were divided into a control group (10% sorbitol, n = 31) and an experimental group (10 mg Zn/day, n = 31) for 3 months. Anthropometric and dietary assessments as well as bioelectrical measurements were performed in all children. Results: Our study showed (1) an increased body mass index for age and an increased phase angle in the experimental group; (2) a positive correlation between nutritional assessment parameters in both groups; (3) increased soft tissue, and mainly fat-free mass, in the body composition of the experimental group, as determined using bioelectrical impedance vector analysis; (4) increased consumption of all nutrients, including zinc, in the experimental group; and (5) an increased serum zinc concentration in both groups (p < 0.0001). Conclusions: Given that a reference for body composition analysis does not exist for intervention studies, longitudinal studies are needed to investigate vector migration during zinc supplementation. These results reinforce the importance of employing multiple techniques to assess the nutritional status of populations.

Métodos de avaliação nutricional para a suplementação oral com zinco em crianças pré-púberes não deficientes em zinco

Background: Zinc is an essential nutrient that is required for numerous metabolic functions, and zinc deficiency results in growth retardation, cellmediated immune dysfunction, and cognitive impairment. Objective: This study evaluated nutritional assessment methods for zinc supplementation in prepubertal nonzinc- deficient children. Design: We performed a randomised, controlled, triple-blind study. The children were divided into a control group (10% sorbitol, n = 31) and an experimental group (10 mg Zn/day, n = 31) for 3 months. Anthropometric and dietary assessments as well as bioelectrical measurements were performed in all children. Results: Our study showed (1) an increased body mass index for age and an increased phase angle in the experimental group; (2) a positive correlation between nutritional assessment parameters in both groups; (3) increased soft tissue, and mainly fat-free mass, in the body composition of the experimental group, as determined using bioelectrical impedance vector analysis; (4) increased consumption of all nutrients, including zinc, in the experimental group; and (5) an increased serum zinc concentration in both groups (p < 0.0001). Conclusions: Given that a reference for body composition analysis does not exist for intervention studies, longitudinal studies are needed to investigate vector migration during zinc supplementation. These results reinforce the importance of employing multiple techniques to assess the nutritional status of populations.