869 resultados para Salty taste
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Central α2-adrenoceptors and the pontine lateral parabrachial nucleus (LPBN) are involved in the control of sodium and water intake. Bilateral injections of moxonidine (α2-adrenergic/imidazoline receptor agonist) or noradrenaline into the LPBN strongly increases 0.3 M NaCl intake induced by a combined treatment of furosemide plus captopril. Injection of moxonidine into the LPBN also increases hypertonic NaCl and water intake and reduces oxytocin secretion, urinary sodium, and water excreted by cell-dehydrated rats, causing a positive sodium and water balance, which suggests that moxonidine injected into the LPBN deactivates mechanisms that restrain body fluid volume expansion. Pretreatment with specific α2-adrenoceptor antagonists injected into the LPBN abolishes the behavioral and renal effects of moxonidine or noradrenaline injected into the same area, suggesting that these effects depend on activation of LPBN α2-adrenoceptors. In fluid-depleted rats, the palatability of sodium is reduced by ingestion of hypertonic NaCl, limiting intake. However, in rats treated with moxonidine injected into the LPBN, the NaCl palatability remains high, even after ingestion of significant amounts of 0.3 M NaCl. The changes in behavioral and renal responses produced by activation of α2-adrenoceptors in the LPBN are probably a consequence of reduction of oxytocin secretion and blockade of inhibitory signals that affect sodium palatability. In this review, a model is proposed to show how activation of α2-adrenoceptors in the LPBN may affect palatability and, consequently, ingestion of sodium as well as renal sodium excretion.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Chemoreception is among the most important sensory modalities in animals. Organisms use the ability to perceive chemical compounds in all major ecological activities. Recent studies have allowed the characterization of chemoreceptor gene families. These genes present strikingly high variability in copy numbers and pseudogenization degrees among different species, but the mechanisms underlying their evolution are not fully understood. We have analyzed the functional networks of these genes, their orthologs distribution, and performed phylogenetic analyses in order to investigate their evolutionary dynamics. We have modeled the chemosensory networks and compared the evolutionary constraints of their genes in Mus musculus, Homo sapiens, and Rattus norvegicus. We have observed significant differences regarding the constraints on the orthologous groups and network topologies of chemoreceptors and signal transduction machinery. Our findings suggest that chemosensory receptor genes are less constrained than their signal transducing machinery, resulting in greater receptor diversity and conservation of information processing pathways. More importantly, we have observed significant differences among the receptors themselves, suggesting that olfactory and bitter taste receptors are more conserved than vomeronasal receptors.
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Soybeans are an important food due to their functional and nutritional characteristics. However, consumption by western populations is limited by the astringent taste of soybeans and their derivatives which results from the action of lipoxygenase, an enzyme activated during product processing. The aim of this study was to evaluate the effect of gamma irradiation on the chemical composition and specific activity of lipoxygenase in different soybean cultivars. Soybeans were stored in plastic bags and irradiated with doses of 2.5, 5 and 10 kGy. The chemical composition (moisture, protein, lipids, ashes, crude fiber, and carbohydrates) and lipoxygenase specific activity were determined for each sample. Gamma irradiation induced a small increase of protein and lipid content in some soybean cultivars, which did not exceed the highest content of 5% and 26%, respectively, when compared to control. Lipoxygenase specific activity decreased in the three cultivars with increasing gamma irradiation dose. In conclusion, the gamma irradiation doses used are suitable to inactivate part of lipoxygenase while not causing expressive changes in the chemical composition of the cultivars studied. (C) 2014 Elsevier Ltd. All rights reserved.
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Pós-graduação em Zootecnia - FMVZ
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Introduction: This study is part of some activities developed in a school library in Marília - SP. Objective: To approach the voice pad use in historical narratives. Methodology: The book chosen by the storyteller for this experiment was “A Menina do Narizinho Arrebitado” written by Monteiro Lobato, the first Brazilian book to gain an interactive version for the pad device. Results: It was observe in that activity like a digital device excites children, being a new way to interaction with stories. With features enticing and easier to use, the tablets provide the reading levels of dynamism and interactivity so far unthinkable. Conclusions: With the results of this research, it is concluded that audiovisual resources allow interaction and dynamism, providing enthusiasm to the listeners; being a pleasurable and diverse action that enables the professional to use new tools to stimulate the taste to hear and share stories as well as to attend a school library.
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This article discusses literary education from early childhood, understanding early childhood as the nursery period from zero to five years. This paper aims to make some observations about the teaching and learning of reading, their relationships with children’s literature, and the formation of literary taste. It also discusses the mediating role of the teacher in the process of literary education, and the school as a space in which this mediation should occur.
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Should taste be discussed? Are there themes in the human life that should not be discussed? Why? What is it aimed when certain themes are discussed or not? The goal of this short paper is to consider the use of so called forbidden drugs in the State. Does the State want to deal with it? Can the State face this problem properly? How has the State tried to deal with such a situation and such a problem? Four researchers of a german university put forward their points of view according to their historical and cultural background. For them this question must be openly and plainly discussed in order to assume that it is also a problem of public health and not only of criminality. In this way a simple prohibition does not solve the problem. The State has the responsibility of elucidating the theme in order to enable the citizen to the use of drugs and to the responsibility for its consequences.
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This experimental project focused on a specialization in journalism that is becoming increa-singly present in the media: the gastronomic journalism. The aim was to understand the speci-ficities of segmentation in the news and editorial spreads profile area for deepening the dining experience in contemporary society, considering the contribution of information to maintain proper eating habits and cultural enrichment of the reader. The research involved a literature review and survey of the history of gastronomy and cultural aspects, analysis and reporting framework for the months of August and September 2010 the Food section of the newspaper Folha de S. Paul, Taste of the book, the newspaper O Estado de S. Paul and the Menu maga-zine segment, Publisher of Three in order to identify the presence of aspects related to culture, history, health and nutrition
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The literary criticism was developed in Brazil in the period that comprehends the end of the 19th century and the beginning of the 20th century. During that time, the mean of dissemination of the criticism were the footnotes of the newspapers, places in which literature was discussed and the critics expressed their personal impressions about literary works with the objective of orientating the good taste of the readers. With the progressive evolution of journalism and of the newspaper's audience, the criticism columns became incompatible with the informative part of the periodicals, being transferred to the literary supplements, during a transition phase, until it was concentrated in the universitary field. This change in the paradigms of the production of criticism also caused a change in the profile of the literary critics and in the criteria to do the criticism. Before, if the critics were professionals that only needed to have enough erudition to judge the literary works, they turn into literature experts and need to use scientific methodologies in the literary analysis, while the cultural journalist begins to look at the events and literary works as products which belong to a market that needs to be reported. This research proposes studying and comparing the critics published in the column Prosa de Sábado, of the literary supplement Sabático, produced by Silviano Santiago, critic of an academic origin, and Sérgio Augusto, journalist critic, with the objective of identifying similarities and contrasts between them, and analyse the relation of this critics with their distinct fields of literary legitimation, as well as reflecting about the presence of the literary criticism and of the critics in the current press
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Bettelheim (2007), analyzing the infant psyche concluded that for the child to gain self-esteem and develop a balanced sense of self, need to learn to take certain decisions on a daily basis, which will be facilitated by identifying their problems, designed in the stories that are told (or read). Thus, it could find solutions and feel safer. Based on the reading of fairy tales, we dealt with this research, the resumption of fairy tales in homes and schools, in order to help parents and teachers to get parameters to work thinking of their children and students, from such stories, awakening the taste of children by reading and text production. The proposal considered different versions of the fairy tale Cinderella, noting as the moralizing process the messages each approach, and explores the plot and determines which versions would be appropriate for the psycho-cognitive development of children. We also investigated aspects pertinent to the narrative structure, based on literary theory, in order to work in comparative literature. From the discourse analysis, sought to address the marks left by the utterer, capable of denoting its cargo and its ideological worldview projected in the story, although he re-create the history and environment on real facts of a particular period (MARTINS, 2007)