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Alimentação líquida artificial para leitões dos 2 aos 21 dias de idade : estudo de fontes de proteínas vegetais e do nível de arginina na dieta; Artificial liquid feeding for piglets from 2 to 21 days of age : study of vegetable protein sources and arginine levels in the diet

Ebert, André Ricardo
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Tese de Doutorado Formato: application/pdf
POR
Relevância na Pesquisa
46.27%
Leitões neonatos têm sido criados artificialmente com dietas líquidas apresentando desempenho semelhante ou superior ao obtido em criações naturais. Entretanto, o alto custo de dietas à base de derivados lácteos pode inviabilizar a utilização comercial desta tecnologia. Dois experimentos foram realizados para avaliar a substituição de proteínas do leite por proteínas vegetais em dietas líquidas para leitões. No primeiro experimento, foram testadas quatro dietas: SORO) à base de proteína de soro de leite; PVM1 e PVM2), soro substituído em 31 e 62 % por proteína vegetal modificada e PIS) soro substituído em 62 % por proteína isolada de soja. Foram utilizados 66 leitões, com dois dias de idade. Aos 19 dias de idade, os leitões pesaram entre 6,8 e 8,5 kg, sendo que aqueles dos tratamentos PIS e PVM2 apresentaram maior ganho diário de peso (GDP) (391 g/dia) que os leitões do tratamento SORO (291 g/dia). O consumo diário de matéria seca (CDR) e a eficiência alimentar (EA) também foram maiores para PIS e PVM2 do que para SORO. No geral, SORO apresentou maior digestibilidade ileal aparente de aminoácidos, entretanto PVM2 e PIS consumiram mais aminoácidos essenciais digestíveis, especialmente arginina (Arg) e apresentaram carcaças com menos gordura e maior deposição diária de proteína. No segundo experimento foram utilizados 65 leitões de três dias de idade. Destes...

Biological evaluation of mechanically deboned chicken meat protein hydrolysate; Avaliação biológica do hidrolisado de proteína da carne de galinha desossada mecanicamente

Rossi, Daniele Misturini; Flôres, Simone Hickmann; Venzke, Janaína Guimarães; Ayub, Marco Antônio Záchia
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Artigo de Revista Científica Formato: application/pdf
ENG
Relevância na Pesquisa
45.91%
Objetivo O objetivo do estudo foi avaliar a qualidade biológica da proteína hidrolisada obtida a partir da carne mecanicamente separada de frango. Métodos A carne mecanicamente separada de frango foi hidrolisada com a enzima Alcalase 2,4 L FG e o hidrolisado obtido foi submetido a secagem em atomizador. Foram utilizados três grupos (n=6) de ratos machos Wistar os quais receberam dietas contendo caseína, proteína hidrolisada de carne mecanicamente separada de frango ou uma dieta com proteína livre. Os animais foram distribuídos aleatoriamente em gaiolas individuais, com temperatura controlada (22°C), por um período de 12 dias. Resultados A dieta utilizando carne mecanicamente separada de frango resultou em elevada utilização líquida de proteína (3,74) e elevada digestibilidade verdadeira (96%). A composição de aminoácidos da proteína hidrolisada apresentou bons resultados, embora metionina e cistina tenham apresentado baixos valores, sendo considerados aminoácidos limitantes. A composição química mostrou altos valores de proteína no hidrolisado obtido (62%). Conclusão Os resultados obtidos neste trabalho sugerem que a proteína hidrolisada de carne mecanicamente separada de frango poderá ser utilizada como um suplemento em formulações alimentares...

Changes in protein fractions, trypsin inhibitor and proteolytic activity in the cotyledons of germinating chickpea

Neves, Valdir Augusto; Lourenço, Euclides Joaquim
Fonte: Universidade Estadual Paulista Publicador: Universidade Estadual Paulista
Tipo: Artigo de Revista Científica Formato: 269-275
ENG
Relevância na Pesquisa
45.89%
The chickpea seed germination was carried out in 6 days. During the period it was observed a little variation on total nitrogen contents, however the non protein nitrogen was double. A decrease of 19.1 and 20.6% in relation to total nitrogen was observed to the total globulin and albumin fractions, respectively. The gel filtration chromatography on Sepharose CL-6B and SDS-PAGE demonstrated alterations on the distribution patterns of the albumin and total globulin fractions between the initial and the sixth day of germination suggesting the occurrence of protein degradation in the germination process.The assay for acid protease only appeared in the albumin fraction with casein and chickpea total globulin as substrates, whereas the former was more degradated than the latter, however the transformations detected in the protein fractions apppear indicated that others enzymes could be acting during the process. The trypsin inhibitor activity had a little drop after six day of germination indicating a possible increase on the digestibility of the proteins.

The plant energy-dissipating mitochondrial systems: Depicting the genomic structure and the expression profiles of the gene families of uncoupling protein and alternative oxidase in monocots and dicots

Borecký, Jiří; Nogueira, Fábio T. S.; De Oliveira, Kívia A. P.; Maia, Ivan de Godoy; Vercesi, Aníbal E.; Arruda, Paulo
Fonte: Universidade Estadual Paulista Publicador: Universidade Estadual Paulista
Tipo: Artigo de Revista Científica Formato: 849-864
ENG
Relevância na Pesquisa
45.92%
The simultaneous existence of alternative oxidases and uncoupling proteins in plants has raised the question as to why plants need two energy-dissipating systems with apparently similar physiological functions. A probably complete plant uncoupling protein gene family is described and the expression profiles of this family compared with the multigene family of alternative oxidases in Arabidopsis thaliana and sugarcane (Saccharum sp.) employed as dicot and monocot models, respectively. In total, six uncoupling protein genes, AtPUMP1-6, were recognized within the Arabidopsis genome and five (SsPUMP1-5) in a sugarcane EST database. The recombinant AtPUMP5 protein displayed similar biochemical properties as AtPUMP1. Sugarcane possessed four Arabidopsis AOx1-type orthologues (SsAOx1a-1d); no sugarcane orthologue corresponding to Arabidopsis AOx2-type genes was identified. Phylogenetic and expression analyses suggested that AtAOx1d does not belong to the AOx1-type family but forms a new (AOx3-type) family. Tissue-enriched expression profiling revealed that uncoupling protein genes were expressed more ubiquitously than the alternative oxidase genes. Distinct expression patterns among gene family members were observed between monocots and dicots and during chilling stress. These findings suggest that the members of each energy-dissipating system are subject to different cell or tissue/organ transcriptional regulation. As a result...

Microstructure of ceramics TiO2 obtained by protein consolidation

Santana, Jerusa Góes Aragão; de Campos, Elson; Lucena, Emerson Ferreira; Mota, Rogério Pinto
Fonte: Universidade Estadual Paulista Publicador: Universidade Estadual Paulista
Tipo: Conferência ou Objeto de Conferência Formato: 1010-1015
ENG
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56.19%
Porous ceramics can be produced by adding starch (corn, potato) and protein (animal or vegetable) to raw material as pore forming element. In this study, titanium dioxide ceramics were formed by vegetable protein consolidation. Soybean was chosen as the binding agent and pore forming. The samples, which were produced in cylindrical shape, had the following processing: material mixture, gelling, drying, pre-sintering and sintering. Heated platinum microscopy were performed by using suspensions with different compositions in order to verify protein gelling capacity and better know the temperature in which this process occurs. The samples were characterized by apparent porosity and roughness measurement. Besides, imaging by light microscopy was also performed in order to determine the sample morphology and porosity. © (2012) Trans Tech Publications, Switzerland.

Atividade antioxidante de produtos proteicos de linhaça (Linum usitatissimum L.); Antioxidante activity of flaxseed protein products (Linum usitatissimum L.)

Fernanda Guimarães Drummond e Silva
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 12/04/2012 PT
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45.91%
Existem evidências numerosas sobre o papel dos radicais livres em uma série de condições patológicas, incluindo envelhecimento, câncer, esclerose múltipla, doenças cardiovasculares. Hidrolisados protéicos de diferentes fontes têm sido estudados por seu potencial antioxidante. A atuação antioxidante da proteína, na maioria das vezes, encontra-se limitada devido à conformação espacial, que concentra resíduos capazes de neutralizar radicais livres no interior da molécula, dificultando o acesso das espécies reativas aos centros nucleofílicos. A hidrólise da proteína contribui para aumentar a exposição desses resíduos de aminoácidos, aumentando sua atuação como antioxidante. Compostos fenólicos podem estar presentes em hidrolisados proteicos de origem vegetal, devido a sua associação com as proteínas. Métodos in vitro que simulam as condições do trato gastrointestinal permitem estudar como a digestão pode interferir na atividade antioxidante de peptídeos e compostos fenólicos. O presente trabalho tem como objetivos obter hidrolisados proteicos com capacidade antioxidante a partir da farinha de linhaça e avaliar o efeito da digestão in vitro pode interferir nessa atividade. A farinha de linhaça marrom foi desengordurada...

Biological evaluation of mechanically deboned chicken meat protein hydrolysate

Rossi,Daniele Misturini; Flôres,Simone Hickmann; Venzke,Janaína Guimarães; Ayub,Marco Antonio Záchia
Fonte: Pontifícia Universidade Católica de Campinas Publicador: Pontifícia Universidade Católica de Campinas
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2009 EN
Relevância na Pesquisa
45.91%
OBJECTIVE: The objective of this study was to evaluate the biological properties of a protein hydrolysate obtained by enzymatic hydrolysis of mechanically deboned chicken meat. METHODS: Mechanically deboned chicken meat was hydrolysed using Alcalase 2.4 L FG and then dried in a spray-drier. Three groups (n=6) of male Wistar rats received diets containing casein, mechanically deboned chicken meat protein hydrolysate and a protein-free diet. The rats were randomly assigned to individual cages with controlled temperature (22ºC) for 12 days. RESULTS: The mechanically deboned chicken meat diet resulted in a good net protein utilization (3.74) and high true digestibility (96%). The amino acid composition of the hydrolysate was relatively well balanced, but the concentrations of methionine and cystine were low, making them the limiting amino acids. The proximate chemical composition of the hydrolysate showed protein content to be as high as 62%. CONCLUSION: The results obtained in this work suggest that mechanically deboned chicken meat hydrolysate can be used as a protein enhancer in food preparations such as enteral formulations, and as an edible protein enhancer in general applications.

Replacement of animal protein with vegetable protein in the diets of Astyanax altiparanae

Sussel,Fábio Rosa; Viegas,Elisabete Maria Macedo; Evangelista,Mariana Machado; Gonçalves,Giovani Sampaio; Salles,Fernando André; Gonçalves,Ligia Uribe
Fonte: Editora da Universidade Estadual de Maringá - EDUEM Publicador: Editora da Universidade Estadual de Maringá - EDUEM
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2014 EN
Relevância na Pesquisa
46.31%
The aim of this study was to evaluate the effect of replacing animal protein with vegetable protein sources on the productive performance of Astyanax altiparanae (lambari-do-rabo-amarelo). Five experimental diets were formulated with increasing replacement levels of animal protein by vegetable protein. A total of 9000 individuals (initial mean weight 1.18 ± 0.12 g, initial mean length 2.1 ± 0.3 cm) were distributed in 20 net cages (1 m³) with a density of 450 ind. m-3. Cages were randomly placed in a pond (180 m², 1.5 m deep, 10% water renewal per day). After 63 days of cultivation, total count and individual biometrics from 20% of each experimental unit were taken. Mean weight, total length, survival, feed conversion, biomass weight gain and proximate body composition were evaluated. The experimental design was completely randomized with five treatments and four replications. The reduction in the formulation cost achieved by increasing levels of vegetable protein compensated the slight decrease in biomass gain. Besides that, inclusion of vegetable protein resulted in greater fat deposition, suggesting future exploration of A. altiparanae as a functional food.

Effect of dietary protein manipulation in subclinical portal-systemic encephalopathy.

de Bruijn, K M; Blendis, L M; Zilm, D H; Carlen, P L; Anderson, G H
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /01/1983 EN
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36.22%
Eight stable cirrhotic patients with mild or subclinical portal-systemic encephalopathy (PSE) were studied after shunt surgery when they were off all antiencephalopathic therapy. Equal amounts of mixed proteins were alternated with animal or vegetable protein in a crossover protocol under metabolic conditions for five consecutive, one week periods. The different dietary periods were not associated with either a change in the neurological impairment score or the Trailmaking Tests, which showed a learning effect. The peak frequencies of the computer analysed EEG (CAEEG) were lower during the animal (6.58 +/- 0.42 Hz) than the vegetable (7.10 +/- 0.44 Hz) diet (p 0.01). Neither arterial ammonia levels nor plasma amino acid ratios changed with the diets, whereas urinary 3-methyl-histidine excretion increased during the animal diet. During the vegetable diet the apparent nitrogen balance tended to be more positive than during either the mixed or animal diets associated with decrease in the urinary nitrogen excretion. The peak frequency of the CAEEG is the most sensitive test to monitor methods of treatment in portal-systemic encephalopathy. A vegetable protein diet, rather than overall protein restriction, should be considered in the management of this disorder...

Extraction methods and test techniques for detection of vegetable proteins in meat products. I. Qualitative detection of soya derivatives.

Hyslop, N. S.
Fonte: Cambridge University Press Publicador: Cambridge University Press
Tipo: Artigo de Revista Científica
Publicado em /06/1976 EN
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36.24%
Extracts of 3 soya bean preparations, used commercially in certain countries to replace part of the meat in popular meat products, were made by treatment with (i) sodium dodecyl sulphate, (ii) Triton-X100 or (iii) n-Butanol. Similar extracts were made from beef and pork. All extracts were examined by electrophoretic and immunological techniques. Stained polyacrylamide gels revealed distinctive protein bands after electrophoresis. The migration rates of corresponding bands differed between beef and pork extracts. However, the migration rates of vegetable bands revealed certain similarities, but differed very greatly from those of animal origin. Characteristic fast-migrating S-bands were distinguishable only in extracts of vegetable protein. Immunodiffusion tests, using antisera produced in rabbits against each extract, revealed varying degrees of similarity between extracts of vegetable origin, but the antisera were specific for either vegetable or animal protein.

Longitudinal association between animal and vegetable protein intake and obesity among adult males in the United States: the Chicago Western Electric Study

Bujnowski, Deborah; Xun, Pengcheng; Daviglus, Martha L.; Van Horn, Linda; He, Ka; Stamler, Jeremiah
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /08/2011 EN
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46.33%
Literature on the association of protein intake with body weight is inconsistent. Little is known about the relation of long-term protein intake to obesity. This study aimed to determine the association between protein intake and obesity. A cohort of 1,730 employed white men ages 40–55 years from the Chicago Western Electric Study was followed from 1958 to 1966. Diet was assessed twice with Burke’s comprehensive diet history method, at two baseline examinations; height, weight, and other covariates were measured annually by trained interviewers. Generalized estimating equation (GEE) was used to examine the relation of baseline total, animal, and vegetable protein intake to likelihood of being overweight or obese at sequential annual examinations. Dietary animal protein was positively related to overweight and obesity over seven years of follow up. With adjustment for potential confounders (age, education, cigarette smoking, alcohol intake, energy, carbohydrate and saturated fat intake, and history of diabetes or other chronic disease), the odds ratios (95% confidence intervals) for obesity were 4.62 (2.68–7.98, p for trend<0.01) for participants in the highest compared to the lowest quartile of animal protein and 0.58 (0.36, 0.95...

Health effects of protein intake in healthy adults: a systematic literature review

Pedersen, Agnes N.; Kondrup, Jens; Børsheim, Elisabet
Fonte: Co-Action Publishing Publicador: Co-Action Publishing
Tipo: Artigo de Revista Científica
Publicado em 30/07/2013 EN
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36.23%
The purpose of this systematic review is to assess the evidence behind the dietary requirement of protein and to assess the health effects of varying protein intake in healthy adults. The literature search covered the years 2000–2011. Prospective cohort, case-control, and intervention studies were included. Out of a total of 5,718 abstracts, 412 full papers were identified as potentially relevant, and after careful scrutiny, 64 papers were quality graded as A (highest), B, or C. The grade of evidence was classified as convincing, probable, suggestive or inconclusive. The evidence is assessed as: probable for an estimated average requirement of 0.66 g good-quality protein/kg body weight (BW)/day based on nitrogen balance studies, suggestive for a relationship between increased all-cause mortality risk and long-term low-carbohydrate–high-protein (LCHP) diets; but inconclusive for a relationship between all-cause mortality risk and protein intake per se; suggestive for an inverse relationship between cardiovascular mortality and vegetable protein intake; inconclusive for relationships between cancer mortality and cancer diseases, respectively, and protein intake; inconclusive for a relationship between cardiovascular diseases and total protein intake; suggestive for an inverse relationship between blood pressure (BP) and vegetable protein; probable to convincing for an inverse relationship between soya protein intake and LDL cholesterol; inconclusive for a relationship between protein intake and bone health...

Vegetable protein and vegetable fat intakes in pre-adolescent and adolescent girls, and risk for benign breast disease in young women

Berkey, Catherine S.; Willett, Walter C.; Tamimi, Rulla M.; Rosner, Bernard; Frazier, A. Lindsay; Colditz, Graham A.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
EN
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46.4%
Previous investigations, of adolescent diet recalled in adulthood, found lower risk for benign breast disease (BBD) with higher intakes of vegetable fat and nuts during high school. We investigate whether vegetable protein and fat, derived from diets reported during pre-adolescence and adolescence, are associated with subsequent risk for BBD in young women. The Growing Up Today Study includes 9,039 females, 9–15 years in 1996, who completed questionnaires annually through 2001, and then in 2003, 2005, 2007, and 2010. Food frequency questionnaires (1996–2001) obtained intake data on a variety of foods. Beginning in 2005, women (18–30 years) reported whether they had ever been diagnosed with BBD that was confirmed by breast biopsy (n = 112 cases). Logistic regression estimated associations between intakes of vegetable protein and fat and biopsy-confirmed BBD. Those individual foods that were the largest contributors of protein and fat in this cohort were also investigated. In analyses of intakes from 1996 through 1998, when our cohort was youngest, vegetable fat (OR = 0.72/(10 gm/day), 95 % CI 0.53–0.98; p = 0.04) was inversely associated with BBD risk. The greatest sources of vegetable fat and protein in these girls were peanut butter...

Effect of Production Phase on Growth, Enzyme Activities and Feed Selection of Broilers Raised on Vegetable Protein Diet

Hossain, M. A.; Islam, A. F.; Iji, P. A.
Fonte: Asian-Australasian Association of Animal Production Societies (AAAP) and Korean Society of Animal Science and Technology (KSAST) Publicador: Asian-Australasian Association of Animal Production Societies (AAAP) and Korean Society of Animal Science and Technology (KSAST)
Tipo: Artigo de Revista Científica
Publicado em /11/2014 EN
Relevância na Pesquisa
46.03%
This study consisted of two experiments, conducted to assess the impact of phase at which vegetable protein (VP) diets are introduced to broiler chicks, and preference of birds for diets based on soybean or canola meal (CM). Two hundred and ten day-old Cobb 500 chicks were randomly distributed into five dietary groups in the main experiment. One group was fed on animal protein (AP) diet all through to 21 days of age; two other groups were started on AP diet for 7 days and then switched to diets containing soybean meal (AP-SBM) or AP-CM, while two other diets (SBM-AP and CM-AP) were started on one of the VP diets for 7 days and then switched to AP diet. A sub-experiment on thirty birds raised on a commercial diet to 7 days was used in a feed selection test to quantify the preference of birds for the diets containing mainly CM or SBM. Chicks were reared under similar care and management conditions and the diets were iso-caloric and iso-nitrogenous. Results of the main experiment showed that chicks on CM-AP diet ate more (p<0.05) than those on the other diets up to day 7. Body weight gain was highest (p<0.001) on the AP-SBM diet while birds on the CM-AP diet weighed the least at 7 d. Feed intake, body weight gain, feed conversion ratio...

Subunit composition of seed storage proteins in high-protein soybean genotypes.

TASKI-AJDUKOVIC, K.; DJORDJEVIC, V.; VIDIC, M.; VUJAKOVIC, M.
Fonte: Pesquisa Agropecuaria brasileira., Brasília, v.45, n.7, p.721-729, jul. 2010 Publicador: Pesquisa Agropecuaria brasileira., Brasília, v.45, n.7, p.721-729, jul. 2010
Tipo: Artigo em periódico indexado (ALICE)
EN
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46.27%
Abstract ? The objective of this work was to quantify the accumulation of the major seed storage protein subunits, â-conglycinin and glycinin, and how they influence yield and protein and oil contents in high-protein soybean genotypes. The relative accumulation of subunits was calculated by scanning SDS-PAGE gels using densitometry. The protein content of the tested genotypes was higher than control cultivar in the same maturity group. Several genotypes with improved protein content and with unchanged yield or oil content were developed as a result of new breeding initiatives. This research confirmed that high-protein cultivars accumulate higher amounts of glycinin and â-conglycinin. Genotypes KO5427, KO5428, and KO5429, which accumulated lower quantities of all subunits of glycinin and â-conglycinin, were the only exceptions. Attention should be given to genotypes KO5314 and KO5317, which accumulated significantly higher amounts of both subunits of glycinin, and to genotypes KO5425, KO5319, KO539 and KO536, which accumulated significantly higher amounts of â-conglycinin subunits. These findings suggest that some of the tested genotypes could be beneficial in different breeding programs aimed at the production of agronomically viable plants...

Effects of a high protein diet on body weight and comorbidities associated with obesity

Clifton, P.
Fonte: C A B I Publishing Publicador: C A B I Publishing
Tipo: Artigo de Revista Científica
Publicado em //2012 EN
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45.89%
Red meat intake has been frequently associated with the development of coronary artery disease and type 2 diabetes but vegetable protein has been associated with protection from these diseases. Whether this is related to the protein per se or to the increased polyunsaturated fat or higher fibre levels associated with more vegetarian diets is not clear. High protein diets are associated with greater satiety and in some studies are associated with greater weight loss compared with high carbohydrate diets especially in an ad libitum design. These diets also lower plasma triglyceride and blood pressure and sometimes spare lean mass. There appear to be no harmful effects of high protein diets on bone density or renal function in weight loss studies.; Peter Clifton

3-MCPD in Food Other than Soy Sauce or Hydrolysed Vegetable Protein (HVP)

BAER Ines; DE LA CALLE GUNTINAS Maria Beatriz; TAYLOR Philip
Fonte: SPRINGER HEIDELBERG Publicador: SPRINGER HEIDELBERG
Tipo: Articles in Journals Formato: Printed
ENG
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45.99%
This review gives an overview of current knowledge about 3-monochloropropane-1,2-diol (3-MCPD) formation and detection. Although 3-MCPD is often mentioned with regard to soy sauce and acid-hydrolysed vegetable protein (HVP), and much research has been done in that area, the emphasis here is placed on other foods. This contaminant can be found in a great variety of foodstuffs and is difficult to avoid in our daily nutrition. Despite its low concentration in most foods, its carcinogenic properties are of general concern. Its formation is a multivariate problem influenced by factors such as heat, moisture and sugar/lipid content, depending on the type of food and respective processing employed. Understanding the formation of this contaminant in food is fundamental to not only preventing or reducing it, but also developing efficient analytical methods of detecting it. Considering the differences between 3-MCPD-containing foods, and the need to test for the contaminant at different levels of food processing, one would expect a variety of analytical approaches. In this review, an attempt is made to provide an up-to-date list of available analytical methods and to highlight the differences among these techniques. Finally, the emergence of 3-MCPD esters and analytical techniques for them are also discussed here...

Prepregnancy Dietary Protein Intake, Major Dietary Protein Sources, and the Risk of Gestational Diabetes Mellitus: A prospective cohort study

Bao, Wei; Bowers, Katherine; Tobias, Deirdre K.; Hu, Frank B.; Zhang, Cuilin
Fonte: American Diabetes Association Publicador: American Diabetes Association
Tipo: Artigo de Revista Científica
EN_US
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36.29%
OBJECTIVE Dietary protein is an important modulator of glucose metabolism. However, studies regarding the association between dietary protein intake and gestational diabetes mellitus (GDM) risk are sparse. This study was to examine the association. RESEARCH DESIGN AND METHODS Our study included 21,457 singleton pregnancies reported among 15,294 participants of the Nurses' Health Study II cohort between 1991 and 2001. Included pregnancies were free of chronic diseases before pregnancy or previous GDM. Generalized estimating equations were used to estimate the relative risks (RRs) and 95% CIs. RESULTS After adjustment for age, parity, nondietary and dietary factors, and BMI, multivariable RRs (95% CIs) comparing the highest with lowest quintiles were 1.49 (1.03–2.17) for animal protein intake and 0.69 (0.50–0.97) for vegetable protein intake. The substitution of 5% energy from vegetable protein for animal protein was associated with a 51% lower risk of GDM (RR [95% CI], 0.49 [0.29–0.84]). For major dietary protein sources, multivariable RRs (95% CIs) comparing the highest with the lowest quintiles were 2.05 (1.55–2.73) for total red meat and 0.73 (0.56–0.95) for nuts, respectively. The substitution of red meat with poultry...

Is Each Light-Harvesting Complex Protein Important for Plant Fitness?1[w]

Ganeteg, Ulrika; Kulheim, Carsten; Andersson, Jenny; Jansson, Stefan
Fonte: American Society of Plant Biologists Publicador: American Society of Plant Biologists
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
45.84%
Many of the photosynthetic genes are conserved among all higher plants, indicating that there is strong selective pressure to maintain the genes of each protein. However, mutants of these genes often lack visible growth phenotypes, suggesting that they ar

Requisitos protéicos mínimos de diferentes fontes vegetais para ratos de laboratório em fase de crescimento; Protein minimum requirements from some vegetable sources for laboratory growing rats

Oliveira, Ida Maria Vianna de; Angelis, Rebeca Carlota de
Fonte: Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia Publicador: Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; Formato: application/pdf
Publicado em 01/01/2001 POR
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36.22%
Os requisitos mínimos de proteína para manutenção do peso e nitrogênio corporal de ratos em crescimento foram determinados, avaliando-se a utilização protéica de diferentes fontes vegetais em relação à caseína. O grau de comprometimento metabólico, nestas condições, foi avaliado através da análise de albumina e proteína total plasmáticas e de proteína hepática. Ratos albinos recém-desmamados, de ambos os sexos, foram submetidos a diferentes dietas experimentais (arroz a 3%, 5% e 7%; feijão a 6%, 8% e 10%; arroz-feijão a 4%, 6% e 8%; e caseína a 3%, 5% e 7%) e controles (caseína a 28% e aprotéica), durante 28 dias (50 dias de idade). A estimativa da porcentagem mínima de proteína se mostrou dependente da qualidade protéica e igual a 3,6; 7,4; 4,9; e 3,7%, respectivamente, para o arroz, o feijão, o arroz-feijão e a caseína. Os parâmetros bioquímicos avaliados mostraram redução significativa com níveis inadequados de proteína, além de adaptação metabólica à restrição protéica, sugerindo a possibilidade de se atenuar as conseqüências da deficiência qualitativa da proteína com um aumento da quantidade na dieta.; The protein minimum requirement for maintenance of body weight and nitrogen from growing rats was determined by protein utilization of some vegetable sources in relation to casein and by evaluation of some biochemical indicators (plasma protein and albumin...