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| Oliveira,Bruno Luciano Carneiro Alves de; Silva,Alécia Maria da; Silva,Raimundo Antonio da; Thomaz,Erika Barbara Abreu Fonseca. |
| Aging with quality of life does not occur equally among the racial groups of Brazilian elderly, and few studies have analyzed this issue in the states of the Brazilian Legal Amazon. The objective of this study was to investigate racial inequalities in the socioeconomic, demographic and health conditions of elderly residents of Maranhão state, Brazil. The present work is a cross-sectional study of 450 elders aged 60 years or older included in the 2008 National Household Sample Survey. The prevalence of socioeconomic, demographic, health and habit indicators and of risk factors were estimated in white, brown and black racial categories that were self-reported by the survey participants. The chi-square test was used for comparisons (a=5%). The majority of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aging; Social inequity; Epidemiology; Indicators; Race or ethnic group distribution. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000300006 |
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| Sant’Helena, Bruna da Rosa Maggi; Brasileiro-Santos, Maria do Socorro; Falcão, Elis Pereira; Duarte, Denia Palmeira Fittipaldi; Pontes Filho, Nicodemos Telles de; Costa, Carlos Peres da. |
| Malnutrition is responsible for a number of alterations that occur in the organism, including alterations in the cardiovascular system. We hypothesize that long periods of malnutrition occurring after weaning may also be responsible for alterations in the cardiovascular system. Wistar rats were separated into the two following experimental groups: a labina® diet-fed control group (CG) and a malnourished group (MG), fed a multi-deficient diet. Results showed that the mg presented significantly lower body weight (p < 0.001) in rats of all ages, higher heart rate (HR) (p < 0.05) when rats were 3, 4 and 5 months old and lower HR in rats from 6 to 9 months of age, in relation to the CG. Spectral analysis showed a significant increase in the low... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.07.00.00-8; Aging; Multi-deficient diet; Eletrocardiography; Spectral analysis morphology of the ventricles Fisiologa. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21482 |
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| Micic, Radoslav. |
| Due to nature of biodiesel fuel (B100) as well as biodiesel and fossil diesel oil blends these fuels demands specific conditions of storage, handling, transportation and distribution. Although it is necessary to pay attention to each of the elements in the distribution chain, the most critical operations are related to storing. Tanks for biodiesel storinghave a dominant influence on the maintenance of stable quality, as may occur, issues that directly affect the degradation in quality and problems during distribution, blending and use. In the designing process of the tank space and the installations must be taken into account all specificities of biodiesel also that materials are resistant to the influence of biodiesel and does not affect it contamination.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Transesterification of fatty acid methyl esters (FAME); Aging; Storing; Blending. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5583 |
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| Mello,Sônia A.; Marese,Angélica C.M.; Brancalhão,Rose M.C.; Zanoni,Jacqueline N.; Natali,Maria Raquel M.. |
| During the ageing process the enteric nervous system undergoes morphofunctional changes, such as enteric neurodegeneration. Neuronal death can be attributed to increase radicals free, and ascorbic acid (AA), known antioxidant, could minimize damage cause by oxidative stress. The objective of this study is to analyse the behaviour of morphoquantative myenteric neurons in the duodenum of adult Wistar rats with aged 90 (C90), 345 (E345) and 428 (E428) days, as well as animals of the same age who received ascorbic acid supplementation for 120 days (EA345 and EA428). Whole-mount preparations of muscle layer from the duodenum of the animals were immunostained by the method myosin V. 80 microscopic fields were quantified (14.8 mm2/animal) and measured 100... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aging; Antioxidant; Enteric nervous system; Immunohistochemistry. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100337 |
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| PEREIRA,JOICE N.B.; MARI,RENATA B.; STABILLE,SANDRA R.; FARIA,HAROLDO G. DE; MOTA,THAIS F.M.; FERREIRA,WALTER M.. |
| Aging is a biologic process characterized by progressive damage of structures and functions of organic systems. In gastrointestinal tract, it can involve enteric nervous system, which plays an important role in digestion and absorption of nutrients, causing hastening of intestinal transit thus reducing its absorptive function. Caloric restriction has been used in several studies with the intention of delaying deleterious effects of aging. This study aimed to evaluate the effects of caloric restriction on myenteric neurons of ileum by aging in rats. 30 Wistar rats were grouped as follows: GI (animals aged 6 months fed with normal diet), GII (animals aged 18 months fed with normal diet) and GIII (animals aged 18 months subject to 31% of caloric restriction).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aging; Caloric restriction; Myenteric plexus; Small intestine. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301471 |
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| DIAMOND,MARIAN C.. |
| Before 1960, the brain was considered by scientists to be immutable, subject only to genetic control. In the early sixties, however, investigators were seriously speculating that environmental influences might be capable of altering brain structure. By 1964, two research laboratories proved that the morphology and chemistry or physiology of the brain could be experientially altered (Bennett et al. 1964, Hubel and Wiesel 1965). Since then, the capacity of the brain to respond to environmental input, specifically "enrichment,'' has become an accepted fact among neuroscientists, educators and others. In fact, the demonstration that environmental enrichment can modify structural components of the rat brain at any age altered prevailing presumptions about the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enrichment; Cerebral cortex; Hippocampus; Aging; Adult neurogenesis; Dendrites. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000200006 |
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| Riccillo,F.L.; Bracamonte,M.I.; Cónsole,G.M.; Gómez Dumm,C.L.A.. |
| Although the endocrine pancreas is the purpose of several deep investigations, morphological data referred to the effect of aging on the gland are not homogeneous. The purpose of the current work was to analyze the changes occurring in the pancreas of aged rats, with especial reference to the islet cell populations. Six young (Y), old (O) and senescent (S) male Sprague-Dawley rats were used. The pancreas tails were processed for light microscopy and studied by means of routine stains as well as by immunohistochemical identification of insulin-, glucagon-, somatostatin-, and pancreatic polypeptide- secreting cells (Dako Envision System, DAB as chromogen). A progressive pancreatic histoarchitecture distortion was found among the aged animals. Even when the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aging; Pancreas; Islets; Immunohistochemistry; Morphometry. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452004000200001 |
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| Park,Seul-Ki; Park,Sang-Kyu. |
| Electrolyzed-reduced water (ERW) scavenges reactive oxygen species and is a powerful anti-oxidant. A positive correlation between oxidative stress and aging has been proved in many model organisms. In Caenorhabditis elegans, many long-lived mutants showed reduced fertility as a trade off against longevity phenotype. We aimed to study the effect of ERW on oxidative stress, fertility and lifespan of C. elegans. We also investigated the genetic pathway involved in the effect of ERW on resistance to oxidative stress and lifespan. We compared lifespan and fertility of worms in media prepared with distilled water and ERW. ERW significantly extended lifespan and increased the number of progeny produced. Then the effect of ERW on resistance to oxidative stress and... |
| Tipo: Journal article |
Palavras-chave: Electrolyzed-reduced water; Aging; Daf-16; Fertility; Lifespan. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000200005 |
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| LEIVA-SALCEDO,ELIAS; PEREZ,VIVIANA; ACUÑA-CASTILLO,CLAUDIO; WALTER,ROBIN; SIERRA,FELIPE. |
| Serum levels of T-kininogen increase dramatically as rats approach the end of their lifespan. Stable expression of the protein in Balb/c 3T3 fibroblasts leads to a dramatic inhibition of cell proliferation, as well as inhibition of the ERK signaling pathway. T-kininogen is a potent inhibitor of cysteine proteinases, and we have described that the inhibition of ERK activity occurs, at least in part, via stabilization of the MAP kinase phosphatase, MKP-1. Since fibroblasts are not a physiological target of T-kininogen, we have now purified the protein from rat serum, and used it to assess the effect of T-kininogen on endothelial cells. Adding purified T-kininogen to EAhy 926 hybridoma cells resulted in inhibition of basal ERK activity levels, as estimated... |
| Tipo: Journal article |
Palavras-chave: Aging; Endothelial cells; ERK pathway; Kininogen; Kinins. |
| Ano: 2002 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602002000200020 |
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| Bezerra,Stephane Flaviane de Oliveira; Costa,Ludimila de Araújo; Freitas,Priscylla Alves Nascimento de; Oliveira,Naila Francis Paulo de. |
| The purpose of this study was to investigate the effect of aging on the DNA methylation status of two genes involved in tumorigenesis (telomerase gene hTERT and DNA repair gene- MLH1) and one in metabolism (methylenetetrahydrofolate reductase gene- MTHFR) in oral epithelial cells. DNA methylation analysis was performed by Methylation Sensitive Restriction Enzymes (MSRE) of healthy oral epithelial cells of child (6-10 years, n=21), young (20-25 years, n=19) and elderly (over 60 years, n=25). The results for the hTERT gene showed significant variation in the methylation frequency at CpG dinucleotides among the groups (p=0.0001), with the methylated condition more frequently in children and young people. In relation to MLH1 and MTHFR, no differences were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epigenetic; DNA methylation; Aging; DNA repair; Telomerase; MTHFR. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100082 |
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| França,Vivian Francielle; Azzolini,Thairine; Pissaia,Ediane; Bortoloti,Durcelina Schiavoni; Signorini,Taise; Costa,Lediana Dalla; Souza,Marília Moraes Queiroz; Lívero,Francislaine Aparecida dos Reis; Lovato,Evellyn Claudia Wietzikoski. |
| ABSTRACT Purpose Population aging is one of the great achievements of humanity. However, with aging, the incidence of chronic diseases and those related to cognition deficits increase. In this way, strategies aimed at preventing or delaying cognitive deficit are extremely necessary. Thus, this study investigates the relationship between cognitive deficits, schooling and eating habits in a Brazilian elderly population. Methods The dietary habits of 400 older adults were investigated through structured questionnaires. Unhealthy eating habits such as low consumption of fruits, vegetables and beans, consumption of fatty meats and whole milk, adjusted for other variables, were evaluated. Cognitive function was assessed by the Mini Mental State Examination... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aging; Cognitive; Diet; Fruits; Schooling; Vegetable. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100327 |
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| Registros recuperados: 86 | |
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