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Search Results: 1 - 10 of 2403 matches for " Cristiane Batassini "
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Effects of chronic caloric restriction on kidney and heart redox status and antioxidant enzyme activities in Wistar rats
Marcio Ferreira Dutra*, Ivi Juliana Bristot, Cristiane Batassini, Nubia Broetto Cunha, Adriana Fernanda Kuckartz Vizuete, Daniela Fraga de Souza, Jose Cl
BMB Reports , 2012,
Abstract: Caloric restriction (CR) has been associated with healthbenefits and these effects have been attributed, in part, tomodulation of oxidative status by CR; however, data are stillcontroversial. Here, we investigate the effects of seventeenweeks of chronic CR on parameters of oxidative damage/modification of proteins and on antioxidant enzyme activitiesin cardiac and kidney tissues. Our results demonstrate that CRinduced an increase in protein carbonylation in the heartwithout changing the content of sulfhydryl groups or theactivities of superoxide dismutase and catalase (CAT).Moreover, CR caused an increase in CAT activity in kidney,without changing other parameters. Protein carbonylation hasbeen associated with oxidative damage and functionalimpairment; however, we cannot exclude the possibility that,under our conditions, this alteration indicates a differentfunctional meaning in the heart tissue. In addition, wereinforce the idea that CR can increase CAT activity in thekidney.
Treadmill Exercise Induces Hippocampal Astroglial Alterations in Rats
Caren Bernardi,Ana Carolina Tramontina,Patrícia Nardin,Regina Biasibetti,Ana Paula Costa,Adriana Fernanda Vizueti,Cristiane Batassini,Lucas Silva Tortorelli,Krista Minéia Wartchow,Márcio Ferreira Dutra,Larissa Bobermin,Patrícia Sesterheim,André Quincozes-Santos,Jaqueline de Souza,Carlos Alberto Gon?alves
Neural Plasticity , 2013, DOI: 10.1155/2013/709732
Abstract: Physical exercise effects on brain health and cognitive performance have been described. Synaptic remodeling in hippocampus induced by physical exercise has been described in animal models, but the underlying mechanisms remain poorly understood. Changes in astrocytes, the glial cells involved in synaptic remodeling, need more characterization. We investigated the effect of moderate treadmill exercise (20?min/day) for 4 weeks on some parameters of astrocytic activity in rat hippocampal slices, namely, glial fibrillary acidic protein (GFAP), glutamate uptake and glutamine synthetase (GS) activities, glutathione content, and S100B protein content and secretion, as well as brain-derived neurotrophic factor (BDNF) levels and glucose uptake activity in this tissue. Results show that moderate treadmill exercise was able to induce a decrease in GFAP content (evaluated by ELISA and immunohistochemistry) and an increase in GS activity. These changes could be mediated by corticosterone, whose levels were elevated in serum. BDNF, another putative mediator, was not altered in hippocampal tissue. Moreover, treadmill exercise caused a decrease in NO content. Our data indicate specific changes in astrocyte markers induced by physical exercise, the importance of studying astrocytes for understanding brain plasticity, as well as reinforce the relevance of physical exercise as a neuroprotective strategy. 1. Introduction Studies have shown that physical exercise can have profound effects on cardiovascular, pulmonary, and the musculoskeletal system, as well as the central nervous system (CNS) [1, 2]. Moderate physical activity improves memory and learning [3–8] and is associated with a lower risk for Alzheimer's dementia [9], Parkinson's disease [10] and other types of neurodegenerative diseases [2]. One of the regions of CNS more affected by exercise is the hippocampus. A putative mechanism, through which the exercise exerts its effects on the hippocampus, is the induction of brain-derived neurotrophic factor (BDNF) [11]. Astrocytes, the most abundant glial cells, particularly those of the glutamatergic type, are very important elements in neurotransmission [12, 13] and antioxidant defense, and this action involves the synthesis and secretion of glutathione (GSH) [14]. These cells are responsible for glutamate removal from the synaptic cleft and its conversion, through glutamine synthetase (GS) catalysis, into glutamine for replacement in the neurons. Moreover, increments in energy demand and functional activity during exercise may require functional and structural
Vítimas e vil?es em reality shows no Brasil: representa??es e avalia??es com base em evidências léxico-gramaticais
Fuzer, Cristiane;
Alfa : Revista de Linguística (S?o José do Rio Preto) , 2012, DOI: 10.1590/S1981-57942012000200003
Abstract: the aim of this study is to analyze the representations constructed in opinion articles published in brazilian newspapers from the lexicogrammar and semantic-discursive perspective. we have analyzed the lexicogrammar functions played by social actors selected from their recurrence in the corpus and evaluation marks to the representations identified. for this, we used the systemic functional linguistics theory, focusing on categories of transitivity system by halliday & matthiessen (2004), forms of representation of social actors by van leeuwen (1997) and the appraisal by martin & white (2005). the results show that the social actors that are most frequently present in the discourse are the opinion article writers, the reality show, the participants of the program and the audience. they appear sometimes activated, sometimes passivated, depending on the linguistic context to which they relate. the presence of linguistic traces of trial judgment and appreciation, often accompanied by gradation, indicates the negative valuations for the reality shows and their agents, while the use of marks of affection signals a defense of participants by the authorial voice. like the participants of the program, the brazilian audience is represented as a victim of the current capitalist system, which is present in the dynamics of reality shows.
A vertigem da descontinuidade: sobre os usos da história na arqueologia de Michel Foucault
Oliveira, Cristiane;
História, Ciências, Saúde-Manguinhos , 2008, DOI: 10.1590/S0104-59702008000100010
Abstract: with the goal of identifying ruptures with traditionalist history discourse, this essay offers a reading of the various uses of history in foucault's archeology. i begin by analyzing and describing the purpose of the notion of archeology, based on foucault's own elucidations. i then describe the set of notions (event, discursive formation, and enunciation) intertwined within the concept of archive, in an attempt to demonstrate foucault's analytical inventiveness in his contribution to the field of history, which he approaches from the paradox between unity and dispersion of enunciations. lastly, i explore the enunciation of mechanisms for controlling discourse, with the aim of identifying elements of transition from descriptive work on discursive formations undertaken in the archeology of knowledge, to an analysis of the interplay of strategies both in discursive as well as non-discursive practices found in the genealogy of power.
Irm? de índio, mulher de branco: perspectivas femininas no alto rio Negro
Lasmar, Cristiane;
Mana , 2008, DOI: 10.1590/S0104-93132008000200006
Abstract: the "displaced" position of women is a constitutive feature of female social experience in the upper rio negro, in contrast to the male position which is centred on the notion of "belonging". starting from this premise, the article reflects on the social experience of indigenous women who live in the city of s?o gabriel da cachoeira, the principal urban centre in the upper rio negro basin. through ethnographic analysis, it explores how marriages with white men in the city contribute to the process of transforming female social experience.
Aspectos de seguran?a do tratamento com hrGH
Kochi, Cristiane;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2008, DOI: 10.1590/S0004-27302008000500017
Abstract: recombinant human growth hormone (hrgh) has been used for treatment of growth hormone deficient children over 20 years and it can be considered to have an excellent safety profile. the main international surveys show few adverse drug reactions reported, specially in idiopathic growth hormone deficiency and in idiopathic short stature. with regard to cancer risk or tumor recurrence, it seems that there is no greater risk with hrgh treatment in comparison to general population. the idiopathic intracranial hypertension is a rare condition, but its incidence is higher in patients with chronic renal failure. the adverse events are rare in patients treated with hrgh, but these patients should be carefully monitored, specially those with pharmacologycal doses or with another clinical condition of greater risk.
Partidos políticos, ideologia e política social na América Latina: 1980-1999
Batista, Cristiane;
Dados , 2008, DOI: 10.1590/S0011-52582008000300004
Abstract: the objective of this article was to investigate whether the ideology of governing parties in latin america affects social policies, in a context of globalization under which, according to the literature, national states have lost their decision-making autonomy. the article's main hypothesis is that - all else remaining equal - governments with a leftist majority invest more in social policies than other governments, especially those with a rightist majority. the methodology used to test the hypothesis was econometric analysis of panel data, also known as pooled time series/cross-section analysis. estimation of the model's parameters used the "panel corrected standard error" method suggested by beck and katz for the analysis of panels with similar dimensions to those of the current study. the principal findings of the econometric analyses corroborated the article's main hypothesis, according to which governments with a leftist majority invest more in the social area.
Eugenizar a alma: a constitui??o da euphrenia no projeto de higiene mental voltado à infancia da Liga Brasileira de Hygiene Mental
Oliveira, Cristiane;
Revista Latinoamericana de Psicopatologia Fundamental , 2011, DOI: 10.1590/S1415-47142011000400004
Abstract: this article analyzes the establishment of "euphrenia" as a new domain for brazilian psychiatry in its eugenic and hygienic approach to children's health. an analysis of medical and psychological knowledge regarding children's minds in brazil in the 1920s and 1930s reveals the intense emotional climate in families as the basis for a project in social normalization, still focused on eugenics but also influenced by a psychology of adaptation.
Universidades corporativas: discuss?o e proposta de uma defini??o
Alperstedt, Cristiane;
Revista de Administra??o Contemporanea , 2001, DOI: 10.1590/S1415-65552001000300008
Abstract: the paper discusses corporate universities and their characteristics. it's emphasized a double criterion of differentiation between corporate universities and training and development departments, looking forward to propose a definition for corporate universities based on this distinction. the study is characterized as an exploratory one once the knowledge about corporate universities is incipient. the definition proposed for corporate universities is based on three concomitants characteristics: development of core competencies to the business, non restriction of educational services to employees, and establishment of partnerships with higher education institutions or degree granting independently.
Making Gender: the politics and erotics of culture
Lasmar Cristiane
Mana , 1997,
Abstract:
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