440 research outputs found
Desenvolvimento Humano: Da Concepção à Maturidade
The main objective of this review was to describe and emphasize the care that a woman must have in the period prior to pregnancy, as well as throughout pregnancy and after the birth of the baby, cares and duties that should continue to be followed by mother and child throughout the first years of the child’s life. Such cares are of nutritional, behavioral and lifestyle natures, and also involve the father and the whole family. Human development, from conception to maturity, consists of a critical and important period due to the multitude of intrinsic genetic and environmental factors that influence, positively or negatively, the person's entire life. The human being, who originated and passed his/her first phase of development in the womb, receives influence from different factors: a) of parental origin (father and mother), including health and lifestyle of the father and mother, genetic inheritance, nutrition of the mother prior to and during pregnancy; b) events that affected the mother and hence the child under development in intrauterine life, at birth (delivery), during perinatal period, and throughout the early years of life. The fragility of development continues throughout the preschool, school and adolescent periods during which proper nutrition with a balanced lifestyle is essential and depends on guidance from the parents, caregivers and teachers.2
Mulher brasileira na política: preconceitos e evoluções – representações na mídia
This article analyses some processes of reference in the representation of women in politics in the media. The results point to a close relationship between discourse and social identity as well as that reference is a contextualized activity related to socially constructed ideologies
Propriedades funcionais (tecnológicas) da parede celular de leveduras da fermentação alcoólica e das frações glicana, manana e glicoproteína
Oxidative stability of pork fat enriched with omega3 and natural antioxidants by modifying animal?s diet.
Influence of yeast (Saccharomyces cerevisiae) cell wall fractions on some nutritional parameters of growing rats
OBJECTIVE: The objective of the present work was to assess the nutritional impact of Saccharomyces cerevisiae cell wall fractions on some nutritional parameters in growing Wistar rats. METHODS: Yeast (Saccharomyces cerevisiae) biomass collected without undergoing thermolysis came from the mill São José, Zillo Lorenzetti (Macatuba, SP) in a suspension of approximately 20% p/v of cells. Fractionation of the cell wall material was done by differential extraction, centrifugation, and drying in spray dryer. The importance of the yeast cell components as dietary fibers was assessed in recently weaned Wistar rats by measuring weight gain, diet consumption (28 days), diet efficiency ratio, apparent protein digestibility, total amount of feces and lipids and cholesterol excreted in feces. RESULTS: Rats which were submitted to diets containing glycan plus mannan gained less weight when compared with the other diets. The mannan-containing diet yielded the highest weight gain, followed by the standard AIN diet (S-AIN) and the insoluble glycan diet. Regarding diet efficiency ratio, the diet containing glycan plus mannan produced the lowest values throughout the 28 days. The highest apparent protein digestibility was obtained for the modified standard diet, for the standard AIN diet, as well as for the 10% mannan-containing diet (M). Total lipids and cholesterol excreted in the feces varied substantially among the diets. The diet containing 10% mannan was the one that promoted the greatest excretion of cholesterol. CONCLUSION: At the end of 28 days, the rats submitted to the glycan plus mannan-containing diets consumed less food and gained less body weight than those submitted to the other diets. Apparent digestibility of all diets was high, 98.6% on average. The amounts of total lipids and cholesterol excreted in the feces varied considerably; however, the mannan-containing diet promoted proportionally more cholesterol excretion than the other diets.OBJETIVO: O objetivo deste trabalho foi avaliar a influência das frações de parede celular de levedura (Saccharomyces cerevisiae) sobre alguns parâmetros nutricionais de ratos Wistar em crescimento. MÉTODOS: A biomassa de levedura (Saccharomyces cerevisiae), coletada sem sofrer o processo de termólise, foi recebida da usina São José, Zillo Lorenzetti (Macatuba, SP), em suspensão de, aproximadamente, (20% p/v) de células. O fracionamento da parede celular da levedura foi realizado por extração diferencial, centrifugação e secagem em spray dryer. A importância como fibra da dieta foi determinada em ratos da linhagem Wistar, recém desmamados, por meio das seguintes avaliações: ganho de peso corporal, consumo de dieta (28 dias), quociente de eficiência da dieta, digestibilidade aparente da proteína, quantidade total de fezes, lipídeos e colesterol excretados nas fezes. RESULTADOS: Os animais que receberam a dieta contendo a fração glicana mais manana ganharam menos peso em relação aos demais tratamentos. A dieta com a fração manana foi a que proporcionou maior ganho de peso, seguida pela dieta padrão (AIN-P) e a dieta com 10% de glicana insolúvel. Quanto ao quociente de eficiência da dieta, observou-se, ao longo dos 28 dias, que a dieta com a fração glicana mais manana foi a que apresentou os menores valores. As maiores porcentagens de digestibilidade aparente da proteína foram observadas nas dietas: padrão modificada (AIN-M), padrão (AIN-P) e (M) com 10% da fração manana. As quantidades de lipídeos totais e colesterol excretados nas fezes variaram bastante entre as dietas, sendo que a dieta formulada com 10% de fração manana foi a que promoveu maior excreção do colesterol. CONCLUSÃO: Ao final de 28 dias, os animais que receberam a dieta contendo 10,0% da fração glicana mais manana apresentaram o menor consumo de dieta e ganharam menos peso em relação às demais dietas. A digestibilidade aparente de todas as dietas foi elevada, em média 98,6%, contudo, as quantidades de lipídeos totais e colesterol excretados nas fezes variaram consideravelmente, sendo que a dieta contendo manana excretou, proporcionalmente, maior quantidade de colesterol.13714
The Impact Of Cystic Fibrosis On The Immunologic Profile Of Pediatric Patients
Objective: To compare the immunologic state of 44 pediatric patients with cystic fibrosis (CF) with a control group consisting of 16 healthy individuals. Methods: CF patients aged 3 to 12 years with moderate to good clinical score were selected for the study. Erythrocytic glutathione, production of reactive oxygen species, cytokines (TNF-α, IFN-γ, IL-8, IL-6, IL-10) in peripheral blood mononuclear cells cultures under spontaneous and BCG- or PHA-stimulated conditions, serum concentrations of TGF-β2, IgA, IgG, IgM, IgE, and salivary IgA were evaluated. Results: The spontaneous production of TNF-α, IL-6, and IL-10, the PHA-stimulated production of IL-6, and the serum TGF-β2, IgA, and IgG were increased in samples from CF patients. Healthy subjects had a higher production of TNF-α in response to BCG. Conclusion: Although CF patients appeared clinically stable, the results of their peripheral blood examinations demonstrated an impact on the immune system. Copyright © 2013 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.8914047O'Sullivan, B.P., Freedman, S.D., Cystic fibrosis (2009) Lancet, 373, pp. 1891-1904Cheung, J.C., Kim Chiaw, P., Pasyk, S., Bear, C.E., Molecular basis for the ATPase activity of CFTR (2008) Arch Biochem Biophys, 476, pp. 95-100Rottner, M., Freyssinet, J.M., Martínez, M.C., Mechanisms of the noxious inflammatory cycle in cystic fibrosis (2009) Respir Res, 10, p. 23Cohen, T.S., Prince, A., Cystic fibrosis: A mucosal immunodeficiency syndrome (2012) Nat Med, 18, pp. 509-519Beutler, E., (1986) Red Cell Metabolism, p. 126. , editor. New York: Churchill LivingstoneEmmendörffer, A., Hecht, M., Lohmann-Matthes, M.L., Roesler, J., A fast and easy method to determine the production of reactive oxygen intermediates by human and murine phagocytes using dihydrorhodamine 123 (1990) J Immunol Methods, 131, pp. 269-275Richardson, M.P., Ayliffe, M.J., Helbert, M., Davies, E.G., A simple flow cytometry assay using dihydrorhodamine for the measurement of the neutrophil respiratory burst in whole blood: Comparison with the quantitative nitrobluetetrazolium test (1998) J Immunol Methods, 219, pp. 187-193Gaines, H., Andersson, L., Biberfeld, G., A new method for measuring lymphoproliferation at the single-cell level in whole blood cultures by flow cytometry (1996) J Immunol Methods, 195, pp. 63-72Boncoeur, E., Criq, V.S., Bonvin, E., Roque, T., Henrion-Caude, A., Gruenert, D.C., Oxidative stress induces extracellular signalregulated kinase 1/2 mitogen-activated protein kinase in cystic fibrosis lung epithelial cells: Potential mechanism for excessive IL-8 expression (2008) Int J Biochem Cell Biol, 40, pp. 432-446Mangione, S., Patel, D.D., Levin, B.R., Fiel, S.B., Erythrocytic glutathione in cystic fibrosis. A possible marker of pulmonary dysfunction (1994) Chest, 105, pp. 1470-1473Lands, L.C., Grey, V., Smountas, A.A., Kramer, V.G., McKenna, D., Lymphocyte glutathione levels in children with cystic fibrosis (1999) Chest, 116, pp. 201-205Gao, L., Kim, K.J., Yankaskas, J.R., Forman, H.J., Abnormal glutathione transport in cystic fibrosis airway epithelia (1999) Am J Physiol, 277, pp. L113-L118Norman, D., Elborn, J.S., Cordon, S.M., Rayner, R.J., Wiseman, M.S., Hiller, E.J., Plasma tumour necrosis factor alpha in cystic fibrosis (1991) Thorax, 46, pp. 91-95Balough, K., McCubbin, M., Weinberger, M., Smits, W., Ahrens, R., Fick, R., The relationship between infection and inflammation in the early stages of lung disease from cystic fibrosis (1995) Pediatr Pulmonol, 20, pp. 63-70Bonfield, T.L., Panuska, J.R., Konstan, M.W., Hilliard, K.A., Hilliard, J.B., Ghnaim, H., Inflammatory cytokines in cystic fibrosis lungs (1995) Am J Respir Crit Care Med, 152, pp. 2111-2118Osika, E., Cavaillon, J.M., Chadelat, K., Boule, M., Fitting, C., Tournier, G., Distinct sputum cytokine profiles in cystic fibrosis and other chronic inflammatory airway disease (1999) Eur Respir J, 14, pp. 339-346Karpati, F., Hjelte, F.L., Wretlind, B., TNF-alpha and IL-8 in consecutive sputum samples from cystic fibrosis patients during antibiotic treatment (2000) Scand J Infect Dis, 32, pp. 75-79Pukhalsky, A.L., Kapranov, N.I., Kalashnikova, E.A., Shmarina, G.V., Shabalova, L.A., Kokarovtseva, S.N., Inflammatory markers in cystic fibrosis patients with lung Pseudomonas aeruginosa infection (1999) Mediators Inflamm, 8, pp. 159-167Moser, C., Kjaergaard, S., Pressler, T., Kharazmi, A., Koch, C., Høiby, N., The immune response to chronic Pseudomonas aeruginosa lung infection in cystic fibrosis patients is predominantly of the Th2 type (2000) APMIS, 108, pp. 329-335Wojnarowski, C., Frischer, T., Hofbauer, E., Grabner, C., Mosgoeller, W., Eichler, I., Cytokine expression in bronchial biopsies of cystic fibrosis patients with and without acute exacerbation (1999) Eur Respir J, 14, pp. 1136-1144Noah, T.L., Black, H.R., Cheng, P.W., Wood, R.E., Leigh, M.W., Nasal and bronchoalveolar lavage fluid cytokines in early cystic fibrosis (1997) J Infect Dis, 175, pp. 638-647Nixon, L.S., Yung, B., Bell, S.C., Elborn, J.S., Shale, D.J., Circulating immunoreactive interleukin-6 in cystic fibrosis (1998) Am J Respir Crit Care Med, 157, pp. 1764-1769Nichols, D., Chmiel, J., Berger, M., Chronic inflammation in the cystic fibrosis lung: Alterations in inter-and intracellular signaling (2008) Clin Rev Allergy Immunol, 34, pp. 146-162Moss, R.B., Bocian, R.C., Hsu, Y.P., Dong, Y.J., Kemna, M., Wei, T., Reduced IL-10 secretion by CD4+ T lymphocytes expressing mutant cystic fibrosis transmembrane conductance regulator (CFTR) (1996) Clin Exp Immunol, 106, pp. 374-388Rosensweig, J.N., Omori, M., Page, K., Potter, C.J., Perlman, E.J., Thorgeirsson, S.S., Transforming growth factor-beta1 in plasma and liver of children with liver disease (1998) Pediatr Res, 44, pp. 402-409South, M.A., Warwick, W.J., Wolheim, F.A., Good, R.A., The IgA system. 3. IgA levels in the serum and saliva of pediatric patients-evidence for a local immunological system (1967) J Pediatr, 71, pp. 645-653Gugler, E., Pallavicini, J.C., Swedlow, H., Zipkin, I., Agnese, P.A., Immunological studies of submaxillary saliva from patients with cystic fibrosis and from normal children (1968) J Pediatr, 73, pp. 548-559Hodson, M.E., Morris, L., Batten, J.C., Serum immunoglobulins and immunoglobulin G subclasses in cystic fibrosis related to the clinical state of the patient (1988) Eur Respir J, 1, pp. 701-705Matthews Jr., W.J., Williams, M., Oliphint, B., Geha, R., Colten, H.R., Hypogammaglobulinemia in patients with cystic fibrosis (1980) N Engl J Med, 302, pp. 245-249Wheeler, W.B., Williams, M., Matthews Jr., W.J., Colten, H.R., Progression of cystic fibrosis lung disease as a function of serum immunoglobulin G levels: A 5-year longitudinal study (1984) J Pediatr, 104, pp. 695-699Harrison, F., Microbial ecology of the cystic fibrosis lung (2007) Microbiology, 153, pp. 917-923Griffith, D.E., Aksamit, T., Brown-Elliott, B.A., Catanzaro, A., Daley, C., Gordin, F., An official ATS/IDSA statement: Diagnosis, treatment, and prevention of nontuberculous mycobacterial diseases (2007) Am J Respir Crit Care Med, 175, pp. 367-416Kremer, T.M., Zwerdling, R.G., Michelson, P.H., O'Sullivan, P., Intensive care management of the patient with cystic fibrosis (2008) J Intensive Care Med, 23, pp. 159-177Costerton, J.W., Stewart, P.S., Greenberg, E.P., Bacterial biofilms: A common cause of persistent infections (1999) Science, 284, pp. 1318-1322Ottenhoff, T.H., New pathways of protective and pathological host defense to mycobacteria (2012) Trends Microbiol, 20, pp. 419-428Pier, G.B., The challenges and promises of new therapies for cystic fibrosis (2012) J Exp Med, 209, pp. 1235-123
Anemia ferropriva e anemia de doença crônica: distúrbios do metabolismo de ferro
A anemia ferropriva e a anemia de doença crônica correspondem às anemias mais comuns por distúrbios do metabolismo de ferro. A anemia ferropriva, desordem nutricional mais prevalente em todo o mundo, acomete principalmente crianças menores de cinco anos e mulheres em idade fértil. Os sinais clínicos da deficiência de ferro não são facilmente identificáveis e, muitas vezes, a anemia não é diagnosticada. Estes sinais incluem palidez, anorexia, apatia, irritabilidade, diminuição da atenção e deficiências psicomotoras. A anemia de doença crônica está presente em processos inflamatórios, infecciosos ou neoplásicos. Alguns autores entendem que, em lugar de considerar a anemia como uma anormalidade em doenças crônicas com quadro de infecção/inflamação, esta possa ser considerada como um mecanismo de defesa, não específico,em resposta do hospedeiro à invasão microbiana. A noção de que a deficiência de ferro representa um fator de proteção contra a infecção é baseada em estudos que demonstram a necessidade de ferro para o crescimento bacteriano e produção de toxinas
Whey And Soy Protein Supplements Changes Body Composition In Patients With Crohn's Disease Undergoing Azathioprine And Anti-tnf-alpha Therapy.
Crohn´s disease (CD) is a chronic transmural inflammation of the gastrointestinal tract of unknown cause. Malnutrition associated with active CD has been reduced although obesity has increased. Dietary strategies such as those with high-protein have been proposed to reduce body fat. This study compares the effects of two supplements on the nutritional status of CD patients. 68 CD patients were randomized in two groups: whey protein group (WP) and soy protein group (SP). Using bioimpedance analysis, anthropometry and albumin and pre-albumin dosages the nutritional status was measured before starting the intervention and after 8 and 16 weeks. The disease activity was determined by Crohn's Disease Activity Index and serum C-reactive protein dosage and dietary intake by 24h dietary recalls. Forty-one patients concluded the study and both supplements changed body composition similarly. Triceps skin fold thickness (p< 0.001) and body fat percentage (p=0.001) decreased, whereas mid-arm muscle circumference (p=0.004), corrected arm muscle area (p=0.005) and body lean percentage (p=0.001) increased. For Crohn's disease patients undergoing anti TNF-alpha and azatioprine therapies, supplementation with whey and soy proteins changes body composition through reduction of body fat and thus contributes to control inflammation.311603-161
Partial chemical and functional characterization of milk whey products obtained by different processes
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Whey protein samples (S-1 to S-5) were tested in vivo and in vitro for nutritional properties and selected bioactivities. Weanling male Wistar rats fed modified AIN-93G (12 g protein. 100 g(-1)) diets for 21 days were used the in vivo studies. The nutritional parameters did not differ among the protein diets tested. Erythrocyte glutathione content was considered high and was higher for S-3, but liver glutathione was the same for all dietary groups. For S-3, cytokine secretion (IL-10 and TNF-alpha) by human peripheral blood mononuclear cells (in RPMI-1640 medium) was higher in the absence of antigen than in the presence of BCG antigen. Interleukin-4 secretion was repressed in all treatments. The IC50, whey protein concentration required to inhibit 50% of the melanoma cell proliferation, was 2.68 mg.mL(-1) of culture medium for the S-3 sample and 3.66 mg.mL(-1) for the S-2 sample. Based on these results, it was concluded that S-3 (whey protein concentrate enriched with TGF-beta and lactoferrin) produced better nutritional and immunological responses than the other products tested.3215664Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CIPED (Pediatrics Investigation Center of the University of Campinas)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP
Production of hydrolysate from processed nile tilapia (oreochromis niloticus) residues and assessment of its antioxidant activity
The objective of this work was to produce protein hydrolysates from by-products of the Nile tilapia fileting process, and to assess the effects of different hydrolysis times on the antioxidant activity of the hydrolysed animal-based protein, in free form and incorporated into a food matrix. Gutted tilapia heads and carcasses were hydrolysed by Alcalase® for different hydrolysis times producing six hydrolysates. The protein content, degree of hydrolysis, reverse-phase high-performance liquid chromatography, and antioxidant activity by the ORAC, FRAP and TEAC methods were analysed. Three mini-hamburger formulations were produced and the lipidic oxidation of mini-hamburger was determined by TBARS. The protein contained in the residue was completely recovered in the process. The hydrolysates varied in their degree of hydrolysis, but presented similar levels of antioxidant activity. In the mini-hamburgers the hydrolysate was capable of delaying oxidation after 7 days of storage. Hydrolysis of tilapia processing by-products produced peptides may be used in the formulation of functional foods364709716CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ453854/2013-
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