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A deficiência de Vitamina D, Zinco e Ferro pode agravar os efeitos da COVID-19, estudar sua ocorrência em óbitos aprimora o diagnóstico e as intervenções de saúde. Este estudo descreve a ocorrência de deficiência de Vitamina D, Zinco e Ferro nos óbitos por COVID-19 no estado de Mato Grosso do Sul, no município de Campo Grande, durante o período de 2020 a 2021. Foram utilizados registros clínico-laboratoriais e epidemiológicos positivos por RT-PCR para COVID-19, com sinais e sintomas iniciados no período, e controles com análise multivariada. Foram identificados 75 casos; a faixa etária com 57,3% dos casos foi de 35 a 44 anos de idade, e os sinais e sintomas mais frequentes foram cefaleia e saturação de ≤ 95%, com uma frequência de 86,6%. O tempo de internação superior ou igual a 15 dias mostrou uma forte associação com os óbitos. Diante da análise do déficit nutricional de Vitamina D, Zinco e Ferro em pacientes indígenas não aldeados com óbitos por COVID-19 em Campo Grande, Mato Grosso do Sul, ressalta-se a importância das intervenções para a promoção da saúde dessa população.

RESUMO A companhia Siderúrgica Nacional (CSN) vem desenvolvendo estudos para disposição adequada dos seus resíduos no Aterro de Resíduos Sólidos Industriais (ARSI). Com objetivo de avaliara movimentação de Pb, Zn, Ni e Cd provenientes das misturas de resíduos alcalinos e ácidos da CSN, amostras dessas misturas foram colocadas sobre as amostras de solo empacotadas, em colunas de vidro, na proporção 1:4 (resíduo:solo). Após a lixiviação com 50 volumes-poro, as colunas foram seccionadas em quatro partes iguais e os teores de Pb, Zn, Ni e Cd determinados em todas profundidades. O pH do resíduo alcalino resultou na diminuição da vazão nas colunas, na baixa solubilidade do Pb do resíduo e na retenção do Zn, Ni e Cd na camada superficial de 0-5cm. Entretanto, no resíduo ácido a mobilização desses metais foi muito superior à do resíduo alcalino, sendo, inclusive, detectados no efluente em concentrações superiores ao permitido pela FEEMA.

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Introdução: O consumo de suplementos alimentares (SA) tem aumentado em todo o mundo, com uma prevalência aproximada de 30% em Portugal, sobretudo os SA contendo vitaminas e minerais. O selénio (Se) e o zinco (Zn) são micronutrientes essenciais às funções fisiológicas, mas doses excessivas podem desencadear efeitos adversos: o Zn pode causar náuseas, vómitos, letargia, anemia e tonturas, e excesso de Se pode provocar neuropatia periférica, fadiga, irritabilidade e alterações no cabelo e unhas. Objetivos: Este estudo consiste na análise da rotulagem de SA e verificação se as doses de Se e Zn indicadas no rótulo estão em conformidade com o Valor de Referência do Nutriente (VRN) estabelecido na legislação europeia para estes minerais (Jornal Oficial da União Europeia, 2011). Material e Métodos: Foram analisados os rótulos de 110 SA, selecionados aleatoriamente, dentro dos seguintes critérios de inclusão: formas farmacêuticas sólidas orais para adultos, contendo Se e/ou Zn na rotulagem, podendo incluir ou não outros compostos, independentemente da finalidade do SA. Resultados: Dos 110 SA, 66 indicam Se na sua composição, 76 indicam Zn, estando ambos os minerais presentes em simultâneo na rotulagem de 29% dos SA. As dosagens de Se indicadas nos SA situam-se entre 25 e 400 µg e a dose média rotulada é de 121 µg/dia, muito acima do VRN de 55 µg/dia. Também os rótulos dos SA com Zn apresentam na sua maioria (58%) um teor de Zn superior ao VRN (média=21 mg/dia versus VRN=10 mg/dia ). Em 22%, a dose de Zn indicada excede largamente o nível máximo de ingestão tolerável (UL: Upper Limit) de 25 mg/dia, definido pela Autoridade Europeia para a Segurança dos Alimentos (EFSA, 2018), com um SA a alegar uma dose diária de 200 mg de Zn. Conclusões: A maioria dos SA estudados apresenta doses rotuladas de Se e Zn superiores às doses recomendadas e muitas vezes superiores ao nível máximo de ingestão tolerável. Para evitar os potenciais efeitos adversos daqui decorrentes, e considerando que os SA são geralmente consumidos sem qualquer supervisão médica, é crucial que as autoridades competentes estabeleçam regras mais rigorosas para garantir a segurança destes produtos.

Resumo Objetivo Identificar se há diferença na concentração plasmática e eritrocitária de zinco na pessoa idosa com e sem a doença de Alzheimer. Métodos Estudo transversal com grupo comparação, realizado com pessoas idosas com e sem doença de Alzheimer, pareadas por sexo, escolaridade e idade. A concentração de zinco foi medida através de espectrofotometria de absorção atômica em forno grafite. Resultados Total de 102 pessoas, 68 no grupo saudável (NDA-g) e 34 o grupo com doença (DA-g). O grupo DA-g apresentou menores concentrações plasmáticas e maior frequência no primeiro quartil para concentrações intraeritrocitárias de zinco. As concentrações plasmáticas e eritrocitárias não apresentaram correlação com tempo de diagnóstico e a idade em ambos os grupos. Na análise de regressão logística, a concentração plasmática esteve associada à DA-g (OR=0,964; p=0,028). Conclusão Pessoas idosas com doença de Alzheimer apresentam menores concentrações plasmáticas e eritrocitárias de zinco.

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Necrolytic migratory erythema (NME) is a rare skin disease typically associated with glucagonoma syndrome, although it can be associated with other non-tumoral diseases. We present the case of a 71-year-old man with a pancreatic neuroendocrine tumor diagnosed with ENM. Although zinc levels were normal, after zinc oral supplementation, there was complete resolution of NME lesions that persisted even after chemotherapy with concomitant somatostatin analog therapy. This has already, although rarely, been reported. NME pathogenesis is not yet fully understood. Hyperglucagonemia contributes to the dysfunction of the epidermis but its pathogenesis most likely results from numerous aspects including hypoaminoacidemia or zinc and essential fatty acids deficiency. [ABSTRACT FROM AUTHOR]

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Copyright of Revista ION is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The mining industry has seen a significant decline in mill feed grade in recent years, resulting in an ongoing build-up of materials not recovered at the mineral processing plants whose economic value has not yet been determined. Tailings dams have been the preferred method of disposal of such materials. However, recent dam breach events and the growing demand for mineral goods have enhanced the appeal of a more effective use of mined materials to prevent tailings accumulation and reduce social and environmental impacts, in line with the environmental, social and governance (ESG) principles that most companies have adopted. Different techniques can be used to recover economically valuable minerals contained in such materials, among which magnetic separation stands out for reasons of cost, production capacity, and recent developments of new equipment and matrices for wet high-intensity magnetic separators. The outcome includes gains in capacity, grade, and recovery yield. This paper assessed the use of a matrix developed by the company Gaustec, called BigFlux, in the magnetic separation of depressed product from the flotation process at Nexa Resources's Vazante mine. Laboratory-scale magnetic separation tests were conducted using standard and an optimized matrix. For a 59% iron concentrate, the metallurgical recovery using such optimized matrix reached 72.6%, up 4% from the figure resulting from the use of the standard matrix, thus indicating that the use of the optimized matrix can improve the magnetite recovery process of the studied material. [ABSTRACT FROM AUTHOR]

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A exigência da sociedade por alimentos com alta qualidade organoléptica e nutracêutica requer estudos que identifiquem cultivares superiores e o manejo nutricional que proporcione ganhos nos atributos de qualidade. Foram analisados os atributos pH, sólidos solúveis (SS), acidez total titulável (AT), relação SS/AT, conteúdos totais de flavonoides (FVT), antocianinas (ATC), compostos fenólicos (CFT) e vitamina C (Vit C) e atividade antioxidante (AAT) dos pseudofrutos de dois cultivares de morango de dias curtos (Pircinque e Jônica) e dois de dias neutros (Albion e San Andreas) submetidos a pulverizações com água ou nutrientes (PAN) (B, Zn e B+Zn) sob cultivo semi-hidropônico no Alto Vale do Itajaí, SC. Morangos dos cultivares de dias curtos apresentam maior teor de SS e relação SS/AT. A PAN não influencia o pH, SS, AT e relação SS/AT. Morangos dos cultivares Jônica e Albion se destacam pelo alto conteúdo de Vit C. A aplicação de Zn aumenta a VIT C dos cultivares. A variação encontrada nos teores de FT, ATC e AAT, deve-se principalmente a genética de cada cultivar. A AAT correlacionou-se positivamente com o conteúdo de FVT e ATC e negativamente com SS. Maiores valores de AAT foram observados, em ordem decrescente, para San Andreas, Jônica, Albion e Pircinque. Pseudofrutos de Pircinque são mais doces, com maior SS e relação SS/AT, porém com menor AAT.

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The objective of this investigation was to study the supplementation of injectable trace minerals (ITM), based on Cu, Zn, Mn, and Se on reproductive performance of dairy cows from Torreon, Mexico, a geographical region characterized by a semi-desertic climate. The study consisted of 2 field trials. Trial 1 compared the application of 2 doses of ITM during the dry period (at dry-off and at prepartum) (n= 75) with a control group (n=79). Trial 2 compared the application of 1 dose of ITM at 35 d postpartum (n=258) with a control group (n=258). In both trials, conception rate at first service (CRFS) and days to conception were evaluated. In Trial 1, CRFS was not different between groups, but calving to conception interval tended to be shorter in 10 days in the treated than the control group (P=0.14). In trial 2, CRFS was not different between groups either, but time to pregnancy was significantly 14 days earlier than the control group (P = 0.05). It is concluded that although CRFS was similar between groups, the application of an ITM reduced the time to pregnancy in treated than the control groups, which have a great impact on herd's fertility and profit. [ABSTRACT FROM AUTHOR]

Em solos de cerrado tem sido cada vez mais frequente o surgimento de casos de deficiência de micronutrientes em diversas culturas, sendo ocasionado pela aplicação incorreta das fontes e doses de micronutrientes no solo. Diante disso, objetivou-se com este trabalho avaliar fontes e doses de diferentes solubilidades em água na construção da fertilidade em micronutrientes em solo do cerrado. O experimento foi conduzido em casa de vegetação, o solo utilizado foi um Latossolo Vermelho-Amarelo distrófico. O delineamento experimental foi em blocos casualizados (DBC), arranjado em esquema fatorial 6 x 2, com três repetições. Os tratamentos constituíram-se de tratamento controle e cinco doses para cada fonte (0; 50; 100; 150; 200 e 250 kg ha-1 ) e duas fontes de micronutrientes de diferentes solubilidades em água (FTE BR12 e Spene®). O Spene® apresenta maior disponibilidade de Cu, Zn, B e Mn em relação ao FTE BR12, independentemente da dose utilizada. A eficiência agronômica na disponibilidade de Cu, Zn e Mn, com o uso da fonte Spene®, é 29, 11 e 5% superior em relação ao uso da fonte FTE BR12. O uso do Spene® em solos do cerrado pode se apresentar como uma alternativa promissora na disponibilidade de micronutriente as culturas.

Copyright of Saúde Coletiva is the property of MPM Comunicacao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aim: Iron deficiency anemia (IDA) is the most frequently detected cause of anemia in Turkey and worldwide. In this study, we investigated the efficacy of the iron preparations of ferrous sulfate (group FeS, Fe2+) and ferrous fumarate combined with Zn (group Fe2+-Zn) in the treatment of IDA. Materials and Methods: Seventy children receiving FeS and 24 children receiving Fe2+-Zn due to IDA between June 2018 and January 2019 were included in the study. The Hb, MCV, MCH, RBC, transferrin saturation, ferritin levels before treatment and in the 1st and 3rd months after treatment, period of drug use, and the frequency of gastrointestinal adverse effects in the two groups were investigated. Results: There was no difference between the two groups regarding age and sex. The mean drug dose in FeS group was 4.01±0.98 mg/kg/day and 4.12±0.06 mg/kg/day in the Fe2+-Zn group (p>0.05). The Hb, MCV, MCH, RBC, transferrin saturation, and ferritin levels in both groups in the 1st and 3rd months after treatment were found significantly higher compared with the levels before treatment. No difference was detected between the two groups for the same parameters before treatment, and in the 1st and 3rd months after treatment (p>0.05, for all). The period of drug use in Fe2+-Zn group (median:4.5 months) was longer than in the FeS group (median:4 months) (p<0.05). No difference was detected in the frequency of adverse effects (p>0.05). Conclusion: We found that FeS and Fe2+-Zn preparations had similar effects on hematologic parameters and iron status in IDA; however, the treatment period in patients who received Fe2+-Zn was longer. [ABSTRACT FROM AUTHOR]

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The effect of inoculation with endotrophic micromycete Cylindrocarpon magnusianum on the formation of adaptive physiological and biochemical reactions in test tomato plants under the action of heavy metal salts has been studied. The experimental design included plant inoculation with a fungus culture (control population) and these fungus populations were preliminarily grown on a pentose-dextrose agar medium with the addition of heavy metal salts in different concentrations. The inoculated plants were grown on substrates without the addition of heavy metal salts (control) and with the addition of zinc, copper, lead, and chromium salts in different concentrations similar to additions in agar when growing fungus populations. In experimental plants, we determined the content of photosynthetic pigments and ascorbic acid in the leaves (spectrophotometry), nitrates in the leaves (ionometric analysis), the aerial part and root system biomass by the gravimetric method, and the degree of fungal infection development of plants via the light microscopy method of macerated and colored fragments of the plant root system. No stimulatory effect, increasing the resistance of plants to the action of heavy metal salts when plants were inoculated with a control population of the C. magnusianum fungus, was revealed. A positive effect was revealed during the inoculation of plants with fungal populations, previously adapted to the action of salts of chemical elements, especially chromium and lead salts, and during further plants' cultivation on substrates with the introduction of these non-biogenic chemical elements hazardous to the life of plants. The effect is associated with the stability of the pigment system, the redistribution of plant biomass, and the synthesis of the antioxidant-ascorbic acid in the leaves. Intensive development of fungal infection in plant roots was also noted. The study results indicate the most effective partnership between the C. magnusianum fungus and the plant root system under stressful conditions for plant life. [ABSTRACT FROM AUTHOR]

Introdução: O estado nutricional deficiente influencia no desenvolvimento da lesão por pressão e um aporte nutricional adequado participa do processo de prevenção e auxilia nas etapas de cicatrização. Objetivo: O estudo teve como objetivo avaliar o estado nutricional e o desenvolvimento de lesões por pressão em pacientes suplementados. Metodologia: Trata-se de um ensaio clínico controlado com randomização, realizado com pacientes internados nas enfermarias e na unidade de terapia intensiva (UTI) de adultos do Hospital das Clínicas Samuel Libânio (HCSL). Resultados: A amostra foi composta por 42 pacientes divididos em três grupos, sendo grupo A dieta enteral, um suplemento alimentar hiperproteico e hipercalórico, acrescido de zinco, grupo B, dieta enteral, um suplemento alimentar hipercalórico e hiperproteico e o grupo C apenas a dieta enteral. Entre os 42 pacientes do estudo, apenas três desenvolveram lesões por pressão, sendo 1 paciente do grupo A e 2 pacientes do grupo C. Discussão: Observou-se que a suplementação melhorou o estado nutricional, os exames bioquímicos e o escore da escala de Braden, reduzindo os riscos para o desenvolvimento de lesões. Conclusão: Pode-se concluir que o estado nutricional do paciente está correlacionado com o desenvolvimento de lesões por pressão. ABSTRACT The influence of the nutritional state in the development of pressure injuries in supplemental patients Introduction: Poor nutritional status influences the development of pressure lesions and an adequate nutritional intake participates in the prevention process and assists in the healing stages. Aim: The objective of this study was to evaluate the nutritional status and the development of pressure lesions in supplemented patients. Methodology: This is a randomized controlled clinical trial conducted with patients admitted to the ward and the adult intensive care unit (ICU) of the Samuel Libânio Clinical Hospital (HCSL). Results: The sample consisted of 42 patients divided into three groups: group A, enteral diet, hyperprotein and hypercaloric dietary supplement, zinc supplementation, group B, enteral diet, a hypercaloric and hyperprotein food supplement, and group C only enteral diet. Among the 42 patients in the study, only three developed pressure lesions, 1 patient in group A and 2 patients in group C. Discussion: It was observed that supplementation improved nutritional status, biochemical tests and the Braden scale score, Reducing the risks for the development of injuries. Conclusion: It can be concluded that the nutritional status of the patient is correlated with the development of pressure lesions.

Objetivo: Investigar a relação entre concentração de zinco e risco cardiovascular em pacientes com insuficiência renal crônica em hemodiálise. Métodos: Estudo analítico, retrospectivo e transversal, realizado em Fortaleza, Ceará, em 2012, do qual participaram 43 adultos com insuficiência renal crônica em hemodiálise (grupo HD) e 35 saudáveis (CO - controle). Coletaram-se dados socioeconômicos e bioquímicos (colesterol total - CT, lipoproteína de baixa densidade - LDL, lipoproteína de muito baixa densidade - VLDL, lipoproteína de alta densidade - HDL e triglicerídeos - TG); determinou-se zinco plasmático por espectrometria de emissão óptica com plasma acoplado; coletou-se perfil lipídico do grupo HD do prontuário e do grupo CO por meio de kit Bioclin®. Obteve-se colesterol não-HDL pela fórmula: não-HDL = CT – HDL-c. Calculou-se risco cardiovascular pela razão TG/HDL, considerando risco quando >3,8. Análises por meio de testes t de Student, Pearson ou Spearman. Resultados: O zinco do grupo HD encontrou-se abaixo da referência e menor (p

An electroanalytical process of the quantitative determination of bivalent zinc ions over the novel Schiff bases in galvanostatic mode has been theoretically simulated. The correspondent mathematical model has been developed and analyzed by means of linear stability theory and bifurcation analysis. It was shown that the system is efficient from both electroanalytical and electrosynthetical points of view, as the steadystate is easily stabilized. Nevertheless, the oscillatory behavior in this system is more probable than in the classic case of the sensors, based on conducting polymers and other organic materials, as there are double electric layer influences, caused by complex formation. [ABSTRACT FROM AUTHOR]

Objective: to seek the critical evaluation and synthesis of available evidence on the relationship between tinnitus, stress and zinc levels in students and teaching and non-teaching workers of higher education institutions. Materials and Methods: the bibliographic survey was conducted in an electronics databases (Lilacs, Medline, Scopus, Web of Science, Embase, Cinhal, Academic Search Premier, Science Direct), with standardized bibliographic search, using specific keywords and descriptors searching all the study summaries pertinent to the proposed question. Of the scientific studies raised in the search, inclusion and exclusion criteria were established. From the obtained titles, tried to select those that had at least one of the elements of the triad: tinnitus, stress and zinc levels. After reading the full texts, they were reviewed according to the protocol form and obtained four studies included in the Integrative Review. Results: the results showed that no is can cause tinnitus and cause complaints and symptoms in hearing and also in general health. In none of the participants of these studies was investigated zinc to demonstrate a possible association of this element with tinnitus in the body of these professionals, as well as stress. Conclusions: there is a lack of studies in the literature with better evidence to be able to prove the existence of a relationship between the triad tinnitus, stress and zinc levels in the researched population. [ABSTRACT FROM AUTHOR]

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Copyright of Summa, Animali da Compagnia is the property of Point Veterinaire Italie s.r.l. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: Obesity is described as excessive accumulation of fat in some target organs of the body, and when associated with zinc deficiency leads to increased adipose tissue raising the risk of obesity-related complications. Objective: To evaluate the dietary intake of zinc in obese women. Materials and Methods: This case-control study was performed with 88 women aged 20-60 years, divided into two groups: the obese group (n = 48) and the control group (n = 40). In the data collection, the anthropometric measurements were checked, and the 3-day food record was applied for food consumption assessment. The data were analyzed in the SPSS version 18.0 program. Results: The mean values of Body Mass Index, Waist Circumference, Waist-Hip Ratio and percentage of body fat were as expected higher in the case group, with significant difference between groups (p = 0.001). Macronutrient intake was in accordance with the recommendations; however, consumption was higher in obese women, with a significant difference in carbohydrate and protein intake (p <0.01). Regarding zinc consumption, both groups presented intake below the recommendation, with a significant difference between the groups. Conclusion: Obese women presented a very high risk for the development of cardiovascular disease. Food intake revealed an adequate intake of macronutrients and zinc intake was below the recommendation in both groups, with higher consumption evidenced in obese women, suggesting changes in mineral metabolism. [ABSTRACT FROM AUTHOR]

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ABSTRACT Introduction: Osteoclasts and osteoblasts are responsible for regulating bone homeostasis during which the trace element zinc has been shown to exert a cumulative effect on bone mass by stimulating osteoblastic bone formation and inhibiting osteoclastic bone resorption. Objective: The aim of the present study was to investigate the effects of zinc (Zn) on orthodontic tooth movement (OTM) in a rat model. Material and Methods: A total of 44 male Wistar rats were divided into four groups of 11 animals each and received 0, 1.5, 20 and 50 ppm Zn in distilled water for 60 days. In the last 21 days of the study, nickel-titanium closed coil springs were ligated between maxillary right incisors and first molars of all rats, and tooth movement was measured at the end of this period. Histological analysis of hematoxylin/eosin slides was performed to assess root resorption lacunae, osteoclast number and periodontal ligament (PDL) width. Results: Mean OTM was calculated as 51.8, 49.1, 35.5 and 45 µm in the 0, 1.5, 20 and 50 ppm zinc-receiving groups, respectively. There were no significant differences in neither OTM nor histological parameters among the study groups (p > 0.05). Conclusion: According to the results obtained in the current investigation, increase in supplementary zinc up to 50 ppm does not affect the rate of OTM neither bone and root resorption in rats.

O trabalho elaborado seguiu visando em reunir estudos de forma exploratória, por meio de evidências bibliográficas científicas. Foram utilizados livros técnicos, artigos científicos, acessados nas bases de dados Scielo, Sciencedirect, Cochrne e Pubmed publicados entre 2004 e 2014. O trabalho reuniu a problemática relativa a usuários de Esteroides Anabólico Sintéticos, Danos na Viabilidade Espermática, Adequação e Suplementação Nutricional e Intercorrências do Profissional Nutricionista Esportivo. Todo esse meio envolvido remete uma investigação em grandes medidas, capaz de gerar mecanismos que possamos entender a condição do paciente diretamente as ações fisiológicas ao qual estão sendo acometido, por parte do profissional nutricionista cabe consequentemente apresentar desempenhos profiláticos, mas, contudo, intervir a favor das potencialidades ao qual o atleta deseja. ABSTRACT Use of synthetic anabolic steroids and appropriateness of zinc, magnesium and b6 in zma for harm reduction on sperm viability in bodybuilders This study was done in order to assemble exploratory studies through scientific literature evidence. Technical books, scientific articles, accessed in databases SciELO, ScienceDirect, Pubmed Cochrne and published between 2004 and 2014. The study met the problem on use of synthetic anabolic steroids, damage in sperm viability, adequacy and nutritional supplementation and complications involving the sports nutrition professional. All this means involved an investigation refers in large measures, capable of generating mechanisms that can understand the patient's condition directly the physiological action which is being affected, by the dietitians sports consequently provide prophylactic performances nevertheless intervene in favor of potential to which the athlete wishes.

Resumo: Com o objetivo de realizar um estudo dos teores de cobre (Cu), zinco (Zn) e ferro (Fe) em búfalas com paratuberculose (PTB) foram utilizadas 13 búfalas, das raças Murrah, Mediterrâneo e seus mestiços acima de três anos de idade, pertencentes a duas propriedades localizadas nos municípios de São Luiz e São Mateus, no Estado do Maranhão. Os animais foram selecionados de acordo com a presença de sinais clínicos sugestivos de paratuberculose, caracterizados por estado nutricional regular a ruim, diarreia crônica líquida a semi-líquida, desidratação, edema submandibular, anestro prolongado, mastites e verminose gastrintestinal. Foi realizada biópsia retal em todos os animais, para detecção de Mycobacterium avium subsp. paratuberculosis (Map) por meio da qPCR, e exames histopatológicos (HE e Ziehl-Neelsen). No Grupo1 sete animais foram positivos para presença de Map, e no Grupo 2 seis foram negativos. Todos os búfalos foram eutanasiados e necropsiados para coleta de diversos tecidos. Parte dos fragmentos foram fixados em formol a 10% para histopatologia e fragmentos de tecido hepático foram congelados para as dosagens dos microminerais (Cu, Zn e Fe). À necropsia todos os animais positivos para PTB apresentavam linfonodos mesentéricos de coloração castanha sugestiva de hemossiderose. Adicionalmente, em um animal foram observados pequenos pontos de cor marrom distribuídos difusamente na mucosa do intestino delgado. Na histopatologia foi observada hemossiderose moderada a acentuada no baço dos animais do Grupo 1. Na dosagem dos microminerais todos os animais com PTB apresentaram níveis abaixo dos valores de referência para Cu e Zn. Observou-se que a média dos teores de Cu dos búfalos com PTB foi 18,0ppm e de Zn 68,6ppm. No Grupo 2 a média dos teores de Cu foi 113,7ppm e de Zn 110,0ppm. Os teores de Fe em ambos os grupos foram elevados (>670ppm). Baseado nos achados clínico-patológicos e nas dosagens de minerais realizadas neste estudo, conclui-se que na região estudada, a PTB agravou o quadro clínico de animais com deficiência de Cu e Zn. Em áreas menos deficientes desses minerais sugere-se que a doença seja capaz de induzir quadros de deficiência mineral secundária.

O trabalho teve como objetivo avaliar o efeito de doses de zinco aplicado em tratamento de sementes sobre a qualidade fisiológica de sementes de feijão e o teor foliar de micronutrientes. O trabalho foi desenvolvido na safra agrícola 2014/2015, no laboratório didático de análise de sementes, no laboratório de fertilidade e em área experimental, da Faculdade de Agronomia Eliseu Maciel, da Universidade Federal de Pelotas. Para a realização do experimento foi utilizado sementes de feijão cultivar BRS Expedito. Os tratamentos foram constituídos pelas seguintes doses aplicados via sementes com produto a base de Zn, nas doses de 0 (0g Zn), 100 (12,0 g Zn), 200 (24,0g Zn), 300 (36,00g Zn), e 400 (48,00g Zn) mL P.C.100kg-1 de sementes. Foram realizadas avaliações na emergência, índice de velocidade de emergência, teste de frio, comprimento de parte aérea e radicular, massa seca de parte aérea e radicular de plântulas e determinação dos teores de micronutrientes. O tratamento de sementes com zinco promove aumento na expressão da qualidade fisiológica de sementes de feijão e também aumento no teor foliar do micronutriente.

A espectroscopia de raios-X por reflexão total (TXRF) é uma técnica promissora para análise de elementos-traço (ETs), principalmente por não ser necessária a digestão das amostras, reduzindo assim a geração de resíduos e emissão de vapores tóxicos. Este trabalho comparou os teores dos ETs: Cr, Mn, Ni, Zn, Cu, As, Se, Hg e Pb, coletados em solos de área de agricultura intensiva e vegetação nativa, determinados por TXRF e por espectrometria de absorção atômica de chama ou forno de grafite (FAAS/GFAAS). Adicionalmente, compararam-se os teores dos ET com valores de referência para solos não contaminados. As amostras de solo foram coletadas na profundidade 0,0-0,2 m em municípios representativos de cada região agrícola do Estado de Mato Grosso (Rondonópolis, Alto Garça, Primavera do Leste, Campo Novo, Nova Mutum, Lucas do Rio Verde, Sorriso, Sinop, Campo Novo dos Parecis, Campos de Julho e Vila Bela da Santíssima Trindade). Em cada município, foram selecionadas seis áreas, totalizando 72 amostras, todas georreferenciadas. Para a leitura dos teores de ET no aparelho de TXRF S2 Picofox™, foram preparadas suspensões de solo usando Triton X-100 a 5 % v/v utilizando gálio como padrão interno, enquanto no FAAS/GFAAS as amostras foram submetidas à digestão ácida pelo método 3051A. Considerando área cultivada e área nativa, respectivamente, os teores médios dos ET por TXRF, em mg kg-1, foram: Cr, 69 e 62; Zn, 16 e 8; Pb, 28 e 21; Mn, 56 e 42; As, 2 e 2; Cu, 9 e 8; e Ni, 2 e 2. O Cd, Se e Hg não foram detectados por TXRF nas amostras analisadas. Para As, Cr, Mn, Zn, Ni, Cu e Pb, houve correlação linear (p

Copyright of Revista Nutrición Clínica y Dietética Hospitalaria is the property of Sociedad Espanola de Dietetica y Ciencias de la Alimentacion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Colombiana de Ciencias Hortícolas is the property of Revista Colombiana de Ciencias Horticolas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The umbu tree is a species of the genus Spondias of big expression in the semiarid region, since it is present in all the Brazilian northeast. However, the lack of a propagation protocol is one of the barriers to commercial cultivation of this species. In this sense, the objective of this study was to evaluate the effect of the treatment in the matrix plant with zinc in the promotion of rooting of umbu tree cuttings treated with indolebutyric acid (IBA). It was adopted a completely randomized design with nine treatments at levels determined by the matrix "Central Box Compound" for zinc concentrations (0, 5.8, 20, 34.2 and 40 mg L-1) and combinations with concentrations of AIB (0; 872.35; 3000, 5127.65 and 6000 mg L-1) and four replicates. Each experimental unit consisted of 12 stakes. Treatment of matrix plants with zinc does not affect the development of roots and shoots of umbu tree cuttings. Indolbutyric acid promotes better development and rooting of umbu tree cuttings at the concentration of 6000 mg L-1. However, there is less growth of the aerial part of the cuttings with the use of this vegetal regulator. [ABSTRACT FROM AUTHOR]

Copyright of Arquivo Brasileiro de Medicina Veterinaria e Zootecnia is the property of Universidade Federal de Minas Gerais, Escola de Veterinaria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pesquisa Veterinaria Brasileira is the property of Colegio Brasileiro de Patologia Animal - CBPA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Arquivo Brasileiro de Medicina Veterinaria e Zootecnia is the property of Universidade Federal de Minas Gerais, Escola de Veterinaria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper is the second part of the work whose purpose is to compare the characteristics, formability and corrosion resistance of zinc coatings produced by electroplating in a chloride-based bath with additives and a sulfate/chloride bath without additives. The first part presented the methodology and the results of the characterization tests and of the formability tests. This part presents the methodology and the results of the immersion tests in a sodium chloride solution and of two corrosion accelerated tests (salt spray and humidity). The obtained results showed that the coating obtained from an additive-free sulfate/chloride bath has increased corrosion resistance more than the coating obtained from a chloride bath with additives. The superiority of the former was related to the texture of the zinc and the absence of residual stresses in the coating. [ABSTRACT FROM AUTHOR]

Continuous zinc plating is traditionally performed in sulfate/chloride bath without additives. This type of coating is dull. Bright coatings are obtained only with additional treatments as brushing. In the marked, chloride baths with additives are available for producing bright coatings without additional treatments. However, the performance of the later, regarding formability and corrosion resistance, is not well known. This work aimed at characterizing zinc coated sheets produced using the two mentioned plating baths. The performance of these coatings was verified through a qualitative formability test and through corrosion tests. The results obtained showed the significant influence of the crystallographic texture of zinc deposits on the formability and on the corrosion resistance. This work will be presented in two parts. This first will present the methodology and the results of characterization tests, as well as the results of a qualitative formability test. The second part will present the methodology and the results obtained regarding corrosion resistance. [ABSTRACT FROM AUTHOR]

Objective: To report a case of acrodermatitis enteropathica, a rare disease with autosomal recessive inheritance. Case description: An 11-month-old boy was presenting symmetrical erythematous and yellowish-brownish crusted lesions on his face, feet, hands and knees, intermittent diarrhea, fever, and recurrent infections since the age of six months. He was thin and had scarce hair on the scalp. The serum zinc level was measured and a reduced level of 27.0 mcg/dL (normal range: 50.0-120.0) was identified. Oral supplementation with 2.0 mg/kg/day of zinc sulfate was immediately initiated. A rapid and progressive improvement of symptoms was observed. The symptoms reappeared with an attempt to stop supplementation. Comments: Recognizing and properly treating acrodermatitis enteropathica is important to prevent complications. [ABSTRACT FROM AUTHOR]

This study analyzed the intake of magnesium and zinc in children with type 1 diabetes mellitus (DM), aged 4 to 8 years. There was an investigation of food consumption through two 24-hour reminders, in which the dietary intake of magnesium and zinc was identified. The findings were compared with the recommendations of the Dietary Reference Intakes (DRIs). The study included children with a mean age of 6.5 ± 1.5 years, 45.0% female and 55.0% male, with an average of 2.7 ± 1.9 years after the time of diagnosis. In relation to food consumption, magnesium intake was 182.0±46.9 mg/day in girls and 154.3±68.1 mg/day in boys and zinc intake was 7.7±2.5 mg/day and 8.0±5.8 mg/day, respectively. Both patients had an intake that was possibly adequate for the 90.0% age group. Only two male patients were possibly inadequate as recommended by Estimated Average Requirement (EAR). It is known that the risks caused by such inappropriate consumption can lead to microvascular and macrovascular complications of DM. However, the majority of results indicate that the group has adequate consumption, which may be a consequence of the follow-up. And indicates more research is needed. [ABSTRACT FROM AUTHOR]

Copyright of Revista Brasileira em Promoção da Saúde is the property of Revista Brasileira em Promocao da Saude and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)