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Search Results: 1 - 10 of 50082 matches for " Cláudia Andréia Lima Cardoso "
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Anxiogenic effects of Tabernaemontana solanifolia A. DC. (Apocynaceae) extracts in rats tested in the elevated plus-maze Determinación mediante la prueba del laberinto elevado en cruz del efecto ansiogénico en ratas de extractos de Tabernaemontana solanifolia A. DC. (Apocynaceae)
Adriana Mary Mestriner Felipe Melo,Luis Fernando Benitez Macorini,André Müeller,Cláudia Andréia Lima Cardoso
Revista Cubana de Plantas Medicinales , 2013,
Abstract: Introduction: Tabernaemontana solanifolia A. DC. (Apocynaceae) grows in the Cerrado (savanna), Caatinga (shrublands), and Atlantic Forest of Brazil. Objective: to investigate the potential anxiolytic activity of the crude extracts and -amyrin acetate obtained from the leaves of Tabernaemontana solanifolia in the elevated plus-maze (EPM) test for anxiety in rats. Methods: the crude extracts (aqueous, ethanol, and hexane), as well as -amyrin acetate, obtained from Tabernaemontana solanifolia leaves were evaluated for possible anxiolytic effects in rats tested in the elevated plus-maze. Acute toxicity in rats was determined by OECD 423 guidelines. The leaves of T. solanifolia specimens collected in Brasília, Brazil, were air dried at 40 °C and macerated with hexane or ethanol. After filtration, the solvents were removed under reduced pressure, yielding the crude hexane and ethanolic extracts (5.96 and 18.62 % yield, respectively). The crude aqueous extract was obtained by infusion, followed by lyophilization (13.5 % yield). Thirty minutes before the elevated plus-maze experiments, the animals were treated with the crude ethanol extract (1 000 mg/kg of body weight [bw], p.o.), the crude hexane extract (1 000 mg/kg bw, p.o.), the crude extract (1 000 mg/kg bw, p.o.), or -amyrin acetate (21 mg/kg bw, p.o.). Results: the extracts cauded no mortality up to 2 000 mg/kg, so half of DL50 doses were selected for the present study. The crude extracts (hexane, ethanolic and aqueous) (1.0 g/kg) as well as the substance -amyrin acetate (21 mg/kg) were administered once, increasing the number of entries into and the time spent in the closed arms of the elevated plus-maze. Conclusion: the oral administration of the extracts and -amyrin acetate obtained from Tabernaemontana solanifolia had an anxiogenic effect in rats. Further studies are needed in order to identify and characterize the anxiogenic properties of Tabernaemontana solanifolia and to understand the anxiogenic mechanisms of the extracts. Introducción: Tabernaemontana solanifolia A. DC. (Apocynaceae) crece en el Cerrado (sabana), Caatinga (matorrales) y la Mata Atlántica de Brasil. Objetivo: investigar la posible actividad ansiolítica de los extractos crudos y el acetato de -amirina obtenidos de las hojas de Tabernaemontana solanifolia en la prueba del laberinto elevado en cruz (EPM) para la ansiedad en ratas. Métodos: los extractos crudos (etanol acuoso y hexano), así como el acetato de -amirina, se evaluaron para posibles efectos ansiolíticos en ratas mediante la prueba del laberinto elevado en cruz. La
Alface e jateikaá em cultivo solteiro e consorciado: produ??o e atividade antioxidante
Mota, José Hortêncio;Vieira, Maria do Carmo;Cardoso, Cláudia Andréa Lima;
Ciência e Agrotecnologia , 2010, DOI: 10.1590/S1413-70542010000300004
Abstract: this study aimed to evaluate the production of lettuce (lactuca sativa l.) e jateikaá (achyrocline alata (kunth) dc.) as a single culture and intercropped. the treatments in study were three and four rows of lettuce and two rows of jateikaá spaced 35 cm or 50 cm, four rows of lettuce alternated with two rows of jateikaá (a25j50) and three alternated rows of lettuce with two rows of jateikaá (a35j35). the experiment design was randomized blocks, with four replications. fresh and dry masses, diameter and height of the lettuce heads and height, fresh and dry masses of inflorescence and aerial parts without inflorescence of jateikaá were evaluated. the antioxidant activity of jateikaá's inflorescence was studied. the culture type and spacing between rows did not influence the characteristics evaluated for lettuce and for jateikaá, with exception of the fresh and dry masses of inflorescences, with production was superior in the 50 cm spacing of plants with height average of 1.12 m for the jateikaá plants. the land equivalent ratio, for intercropping a25j50 was 1.88 and for the a35j35 was 2.05. intercropping a35j35 might be recommended. antioxidant activity was observed in all samples. the inhibition standard was similar for both single culture and intercropping, demonstrating that the chemical constituent of jateikaá had presented a high antioxidant potential.
Avalia??o do perfil cromatográfico em espécies de Polygonum e amostras comercializadas como "erva-de-bicho"
Cardoso, Cláudia Andréa Lima;Honda, Neli Kika;Dias, Edna Scremin;
Revista Brasileira de Farmacognosia , 2006, DOI: 10.1590/S0102-695X2006000200018
Abstract: the species polygonum punctatum, polygonum hydropiperoides, polygonum ferrugineum, polygonum acuminatum were analyzed and compared with commercialized samples of "erva-de-bicho". this analysis was performed using high performance liquid chromatography. it was verified that the analyzed samples show a distinct. the chromatographic profile of the samples commercialized as "erva-de-bicho" was similar to the polygonum acuminatum or polygonum ferrugineum profiles, or did not present peaks in the chromatograms. the chromatographic profiles were monitored in the 254 nm and 362 nm.
α-Tocopherol levels in natural and artificial aging of soybean seeds
Giurizatto, Maria Izabel Krüger;Ferrarese-Filho, Osvaldo;Ferrarese, Maria de Lourdes Lucio;Robaina, Antonio Dias;Gon?alves, Manoel Carlos;Cardoso, Cláudia Andréa Lima;
Acta Scientiarum. Agronomy , 2012, DOI: 10.4025/actasciagron.v34i3.12660
Abstract: tocopherols are well known constituents of vitamin e, and the main antioxidants in soybean. are natural antioxidants and stabilizers that can inhibit lipid degradation, reducing non-enzymatic oxidation of these compounds during storage of seeds, germination and initial development of seedlings. the objective of this work was to determine the level of α-tocopherol in four soybean seeds cultivars naturally and artificially aged. seeds of four soybean cultivars stored from 0 to 180 days in a dry chamber (natural aging) and subjected to high temperature and humidity (artificial aging) were analyzed for α-tocopherol content. the quantification of α-tocopherol in the soybean seeds was performed by high performance liquid chromatography (hplc) combined with the soxhlet extraction method. significant differences in α-tocopherol levels in seeds were observed for all cultivars and storage times. the α-tocopherol contents of the soybean seeds showed linear correlations with an increasing period of storage for all the cultivars studied. however, the artificially aged seeds had a higher content of α-tocopherol than those naturally aged.
Programa de interven??o para pais de crian?as com dificuldades de aprendizagem: um estudo preliminar
Rolfsen, Andréia Bevilacqua;Martinez, Cláudia Maria Sim?es;
Paidéia (Ribeir?o Preto) , 2008, DOI: 10.1590/S0103-863X2008000100016
Abstract: the entrance to the elementary school is an important moment in the schooling process. the literature indicates that guiding the family in this process, using resources from the family environment, can be crucial in the prevention of school difficulties. in this context, this study implemented and evaluated a proposal of intervention in the form of a psychopedagogical program -"psychopedagogical program parents orientation" (ppop in portuguese), addressed to parents and families responsible for children with learning difficulties, included in the first grades of elementary school in regular public schools, in order to investigate the conditions of implementation of ppop. eight students and their respective parents participated in this study. the analysis show that this program can be implemented in large scale and was satisfactory in terms of form and content, according to the participants' reports.
Participa??o comunitária em um programa de interven??o em área de prote??o ambiental
Setti, Andréia Faraoni Freitas;Bógus, Cláudia Maria;
Saúde e Sociedade , 2010, DOI: 10.1590/S0104-12902010000400020
Abstract: this article discusses the concepts of participation and empowerment in health promotion and sustainable development, considering the local implementation agendas:/ healthy cities and agenda 21, and taking into account the importance of evaluation in this context. this was achieved through the analysis of an intervention in an area of water springs - programa bairro ecológico (pbe - ecological/ neighborhood program) -, which/ was developed in 51 neighborhoods of/ the city of s?o bernardo do campo, state of s?o paulo, brazil. the study aimed to evaluate the processes of community/ participation and empowerment through the actions triggered by the pbe. questionnaires were administered to and/ focal groups were conducted with residents of neighborhoods where the intervention took place./ individual interviews were performed with managers of the program and/ of the judiciary. results indicated that participation/ in the implementation of/ pbe favored the individual and group empowerment, present in both the studied communities. the communities became more organized. there is evidence that the decision-making processes are centralized. nevertheless, the communities feel that their participation in the program brings them many good things. there was a participatory process in the development of the program, although some accounts point to mandatory participation. it is important to highlight the impact of leadership involvement and strengthening in the implementation and sustainability of the program. regarding the latter, it was found that environmental awareness has been a determining factor for the implementation and maintenance of actions over time.
A aquisi??o da morfologia de verbos regulares no português brasileiro: uma abordagem da lingüística cognitiva
Souza, André Luiz Elias de;Cardoso-Martins, Cláudia;
Psicologia: Reflex?o e Crítica , 2010, DOI: 10.1590/S0102-79722010000100016
Abstract: in recent years, there has been an increasing body of research on cognitive linguistics in brazil. however, few studies have investigated first language acquisition from a cognitive linguistics viewpoint. the present study is an attempt to fill in this gap. the productivity of a young brazilian portuguese-speaking boy with regard to the use of regular verbs was investigated at two different times: when he was 1 year and 10 months old, and when he was 2 years and 2 months old. the data were taken from the childes database. although there was a significant progress between times 1 and 2, results suggest that the knowledge of the morphosyntax of verbs develops gradually, being initially non-schematic, which is consistent with the cognitive linguistics framework. the implications of these results for a theory of language acquisition are discussed.
The acquisition of regular verb morphology in brazilian portuguese: a cognitive linguistics approach / A aquisi o da morfologia de verbos regulares no português brasileiro: uma abordagem da lingüística cognitiva
André Luiz Elias de Souza,Cláudia Cardoso-Martins
Psicologia: Reflex?o e Crítica , 2010,
Abstract: In recent years, there has been an increasing body of research on Cognitive Linguistics in Brazil. However, few studies have investigated first language acquisition from a Cognitive Linguistics viewpoint. The present study is an attempt to fill in this gap. The productivity of a young Brazilian Portuguese-speaking boy with regard to the use of regular verbs was investigated at two different times: when he was 1 year and 10 months old, and when he was 2 years and 2 months old. The data were taken from the CHILDES database. Although there was a significant progress between Times 1 and 2, results suggest that the knowledge of the morphosyntax of verbs develops gradually, being initially non-schematic, which is consistent with the Cognitive Linguistics framework. The implications of these results for a theory of language acquisition are discussed.
Ingest?o dietética de folato em gestantes do município do Rio de Janeiro
Lima, Helaine Thomaz de;Saunders, Cláudia;Ramalho, Andréa;
Revista Brasileira de Saúde Materno Infantil , 2002, DOI: 10.1590/S1519-38292002000300011
Abstract: objectives: to assess the folate ingestion by 201 low-risk pregnant women attended at prenatal service in miguel couto municipal hospital, in rio de janeiro. methods: for the dietary assessment, a survey of semi-quantitative intake frequency has been used. it was considered as adequate dietary ingestion an amount of 600μg/day or above. additionally, maternal variables were identified by interviews and checking their medical files. results: the prevalence of dietary folate inadequacy was 63,7%. such a rate has occurred irrespective to maternal variables, namely, age, color, dwelling, sanitary conditions, pregnancy time, time span between deliveries, parity and nutritional conditions before pregnancy. on the other hand, the folate consume has proved to be dependent on the mothers'schooling level and the use of suplements. less educated women have shown 2,5 times more chance (or = 2,49) of inadequate folate intake, and that not in use of suplement shown 16,3 times more chance(or = 16,30) of inadequate folate intake. conclusions: these findings reinforce the importance of investigating the nutritional state of folate in women at reproductive age and in pregnant women at prenatal attendance, since the nutritional deficiency at this stage of the biological cycle may be associated with undesirable obstetric results.
Efeitos do treinamento resistido sobre a press?o arterial de idosos
Queiroz, Andréia Cristiane Carrenho;Kanegusuku, Hélcio;Forjaz, Cláudia Lúcia de Moraes;
Arquivos Brasileiros de Cardiologia , 2010, DOI: 10.1590/S0066-782X2010001100020
Abstract: the aging process drastically reduces muscle mass, strength and power, decreasing the capacity to perform the activities of daily living. the practice of resistance exercises can reverse this picture, helping to maintain the muscular mass and improving muscular strength and resistance. however, the aging process causes cardiovascular alterations, which can result in increased blood pressure levels at rest and it is important to analyze the effects of resistance exercises on the blood pressure of elderly individuals. the objective of this study is to evaluate the current scientific knowledge on the responses of the blood pressure to resistance exercises and their mechanisms in elderly individuals. in order to do that, we carried out a literature review related to the theme, in both portuguese and english. based on the studies found, the current corpus, although scarce and controversial, suggests that, chronically, resistance exercises can have a hypotensive effect on elderly individuals. however, this effect occurs mainly in normotensive elderly individuals submitted to low-intensity training. the mechanisms involved in the hypotensive response still need to be clarified. although the resistance training is recommended for elderly individuals and there is some evidence that it can have a chronic hypotensive effect, there is still lack of scientific data and much debate on the subject, which demonstrates that this field is still open to investigation.
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