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Search Results: 1 - 10 of 191629 matches for " Martha Elisa Ferreira de;Queiroz "
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Lipídeos séricos e morfologia hepática de ratos alimentados com diferentes fontes lipídicas (óleo de soja, gordura de peixe e porco, margarina e manteiga)
Almeida, Martha Elisa Ferreira de;Queiroz, José Humberto de;Costa, Neuza Maria Brunoro;Matta, Sérgio Luis Pinto;
Revista de Nutri??o , 2011, DOI: 10.1590/S1415-52732011000100014
Abstract: objective: this study analyzed serum lipids and hepatics morphological changes in rats fed different lipid sources (soybean oil, fish fat and lard, margarine and butter). methods: fifty wistar rats were divided into five groups. they were given semi-synthetic diets with different lipid sources for 28 days: soybean oil, lard, butter, margarine and fish fat. body weight, food intake, food efficiency coefficient, lipoprotein lipase activity, serum concentrations of total cholesterol and high density lipoprotein-cholesterol, triacylglycerols and albumin were assessed. the heart and liver tissues underwent histological assessment. results: the type of lipid source did not influence food intake, weight gain or food efficiency coefficient. the activity of the lipoprotein lipase was also unaffected; however, there were changes in the serum concentration of total cholesterol, high density lipoprotein-cholesterol, triacylglycerols and albumin. all groups presented lipid droplets on the coronary walls and heart capillaries. the fat deposition on the liver of animals given soybean oil, fish fat and lard, and butter was characterized as steatosis. conclusion: the lipid source that presented the best results was soybean oil. fish fat affected the serum and tissues similarly to other lipid sources (lard, butter and margarine). this may contribute to the onset and progression of cardiovascular diseases.
Perfil lipídico tecidual de ratos alimentados com diferentes fontes lipídicas
Almeida, Martha Elisa Ferreira de;Queiroz, José Humberto de;Queiroz, Maria Eliana Lopes Ribeiro de;Costa, Neuza Maria Brunoro;Matta, Sérgio Luis Pinto;
Revista de Nutri??o , 2009, DOI: 10.1590/S1415-52732009000100005
Abstract: objective:to determine if lipid sources with different unsaturated to saturated fatty acid ratios, (pufa+mufa)/sfa in the diet alter the lipid profile of tissues, the lipid concentration (mg/g) of the hepatic and mesenteric tissues and the lipid digestibility. methods:gas chromatography was used to determine the profile of fatty acids in the hepatic and adipose tissues of rats fed with different lipid sources. the digestibility coefficient was determined based on the ratio between lipid intake and excreted in the feces. results:different lipid sources (soy oil, butter, margarine and pig and fish fat) did not alter the digestibility coefficient and the hepatic weight, but they altered the lipid deposition in all adipose tissue evaluated. no direct correlation was observed between dietary non-essential fatty acid profile and its deposition in the studied adipose tissues, because of de novo which impedes the identification of the dietary fatty acid. conclusion:a direct relationship was not verified between the dietary fatty acid profile and its deposition in the studied adipose tissues, except for the trans and linoleic (c18:2) fatty acids which are not synthesized in the rat. the tissue concentration of these fatty acids was directly proportional to their dietary sources. the (pufa+mufa)/sfa ratio found in the hepatic tissue of the different groups, was directly proportional to the values presented in the dietary lipid sources. however, this association was not observed in the adipose tissue.
Utiliza??o de cactáceas do gênero Pereskia na alimenta??o humana em um município de Minas Gerais
Almeida, Martha Elisa Ferreira de;Corrêa, Angelita Duarte;
Ciência Rural , 2012, DOI: 10.1590/S0103-84782012000400029
Abstract: the objective of this study was to evaluate the use of cacti of the genus pereskia, for human consumption food. the study was conducted in 1.525 households in the city of s?o gon?alo do abaeté (mg). in this city where the socioeconomic questionnaire was applied regarding the dietary use of this plant, commonly referred to as ora-pro-nobis, only 25 of the households possessed plants of the genus pereskia. in 22 households there was the presence of pereskia grandifolia, in three households there was pereskia aculeata, and one had both types. the presence of nutrients in the ora-pro-nobis was cited by 83.33% of respondents, where 33.37% cited monthly consumption. the plant was cited by 66.67% of the respondents as important in the treatment of iron deficiency anemia, by 16.67% as a therapeutic agent for cancer, by 12.50% for prevention or treatment of osteoporosis and 8.33% for the treatment of constipation. ora-pro-nobis was classified as a vegetable by 54.17% of respondents. it was concluded that the cultural revival of consumption of this type of plant may improve nutritional status and income of lower-class families in both urban and rural regions, from different regions of brazil.
Prenatal of Pregnant Adolescents Performed by Nurses in Primary Health Care  [PDF]
Vania Maria Alves de Sousa, Dafne Paiva Rodrigues, Maria Veraci Oliveira Queiroz, Martha Campos Moura Fé, Dean Douglas Ferreira de Olivindo
Open Journal of Nursing (OJN) , 2016, DOI: 10.4236/ojn.2016.610082
Abstract: This study aims to identify the actions performed by nurses of the Family Health Strategy with the pregnancy cycle of adolescents and analyze if the actions developed by these nurses are focused on risk prevention in pregnancy and childbirth. It is a qualitative and exploratory research in basic health units with 12 nurses. A semi-structured interview technique was applied, and the speeches were analyzed using content analysis. In the analysis of the results, it was identified two thematic categories in which it was noted that nurses during the prenatal make the reception of pregnant adolescents differently and conduct guidelines on examination, signs and symptoms of possible complications during the pregnancy and still emphasize the importance of educational activities as groups of pregnant women to be a chance of coexistence and exchange of experiences, doubts, and anxieties among themselves. It is concluded that the care provided by nurses is fundamental for the pregnant adolescents having prenatal with more quality.
Efeito da prática de trabalhos manuais sobre a autoimagem de idosos
Guedes, Maria Heliana Mota;Guedes, Helisamara Mota;Almeida, Martha Elisa Ferreira de;
Revista Brasileira de Geriatria e Gerontologia , 2011, DOI: 10.1590/S1809-98232011000400012
Abstract: the world population is aging rapidly; thus life expectancy is increasing and people are extending their years of life. art enables man to release their feelings and emotions, increasing the affective quality of interpersonal relationships by improving communication, strengthening self-image and rediscovery of creative potentials. this study aimed to investigate how the practice of manual works can influence the self-image of the elderly. it evaluated art through semi-structured interviews, focusing on issues related to aging and self-image as a therapeutic, creative, artistic process, self-image, self-concept, self-esteem, feelings and emotions. it was evident that the crafts strengthen self-image of the elderly, through the completion of the work, as well as socialization, minimizing any impacts associated with aging, and even arising artistic skills and their improvement. it is through the benefits category and subcategories: mental ability, socialization, and medicine, that manual activities are valuable tools in recovering biological, psychological, social and immunological elderly.
O impacto do cr?mio nos sistemas biológicos
Ferreira, Alba Denise de Queiroz;
Química Nova , 2002, DOI: 10.1590/S0100-40422002000400012
Abstract: the impact of biological chromium's activity may be beneficial or not. this review presents the most relevant chemical aspects of these "two faces" of chromium by covering first, the efforts toward a clearer understanding of the carcinogenic properties of chromium compounds. the biomimetic chemistry of cr(v) complexes illustrates the interactions of the intermediates formed by cr(vi) reduction with dna or oligonucleotides. the importance of trivalent chromium as an essential element is also emphasized by summarizing the recent results of the investigations on trinuclear chromium complexes as models of the cofactor responsible for the insulin activity, as well as good candidates for new nutritional supplements.
O impacto do cr mio nos sistemas biológicos
Ferreira Alba Denise de Queiroz
Química Nova , 2002,
Abstract: The impact of biological chromium's activity may be beneficial or not. This review presents the most relevant chemical aspects of these "two faces" of chromium by covering first, the efforts toward a clearer understanding of the carcinogenic properties of chromium compounds. The biomimetic chemistry of Cr(V) complexes illustrates the interactions of the intermediates formed by Cr(VI) reduction with DNA or oligonucleotides. The importance of trivalent chromium as an essential element is also emphasized by summarizing the recent results of the investigations on trinuclear chromium complexes as models of the cofactor responsible for the insulin activity, as well as good candidates for new nutritional supplements.
Estudo químico e biológico de Tephrosia toxicaria Pers.
Vasconcelos, Jackson Nunes e;Lima, Jefferson Queiroz;Lemos, Telma Leda Gomes de;Oliveira, Maria da Concei??o Ferreira de;Almeida, Maria Mozarina Beserra;Andrade-Neto, Manoel;Mafezoli, Jair;Arriaga, Angela Martha Campos;Santiago, Gilvandete Maria Pinheiro;Braz-Filho, Raimundo;
Química Nova , 2009, DOI: 10.1590/S0100-40422009000200021
Abstract: the ethanol extracts from leaves, stems, pods and roots were assayed against the 3rd instar aedes aegypti larvae and the highest activity was observed in the roots extracts (lc50 47.86 ppm). this extract was submitted to partition with hexane, chloroform, ethyl acetate and methanol. the respective fractions were bioassayed and the best larvicidal activities were identified in the hexane (lc50 23.99 ppm) and chloroform (lc50 13.80 ppm) fractions. antioxidant activity (ddph method) was observed in the ethanol extract (ic50 276 μg/ml) from roots of t. toxicaria. fractions from this extract were also tested and the highest antioxidant activity (ic50 89 μg/ml) was found in the methanol fraction. the flavonoids iso-obovatin (1), obovatin (2), 6a,12a-dehydro-β-toxicarol (3), 6a,12a-dehydro-α-toxicarol (4) and α-toxicarol (5) were isolated and bioassayed against a. aegypti. the flavonoid 5 showed the best larvicidal activity (lc50 24.55 ppm). the antioxidant activity of 2 was investigated and showed ic50 3.370 μg/ml. the antioxidant and larvicidal activities of tephrosia toxicaria are reported for the first time.
Determina??o eletroquímica da capacidade antioxidante de sucos de frutas industrializados usando o CRAC assay
Ferreira, Rafael de Queiroz;Avaca, Luis Alberto;
Química Nova , 2008, DOI: 10.1590/S0100-40422008000800044
Abstract: fruits juices are natural sources of several compounds that present antioxidant action. together with the fruits, they contribute with almost 40% of the antioxidant capacity in a healthy diet avoiding and preventing diseases deriving from oxidative stress. the present study determined the antioxidant capacity of seven samples of industrialized fruits juices applying crac (ceric reducing/antioxidant capacity) assay, a new electrochemistry assay that evaluates, by means of chronoamperometric measurements, the ability of a sample in reducing species ce4+ in acid media. at the end of the assay was obtained the following classification: cashew > guava > grape > mango > apple > orange > passion fruit.
The Long Way from Complex Phenotypes to Genes: The Story of Rat Chromosome 4 and Its Behavioral Effects  [PDF]
Gabriela Ferreira de Medeiros, Fernanda Junkes Corrêa, María Elisa Corvino, Geison de Souza Izídio, André Ramos
World Journal of Neuroscience (WJNS) , 2014, DOI: 10.4236/wjns.2014.43024
Abstract:

Quantitative trait loci (QTLs) mapping has been performed during the past decades in an attempt to identify genes, gene products and mechanisms underlying numerous quantitative traits. It’s a strategy based on natural variations in genes and gene products, which facilitates translation from animal models to human clinical conditions. Our team has shown that the inbred rat strains Lewis (LEW) and Spontaneously Hypertensive Rats (SHR) differ with respect to several emotionality- related behaviors, one of which (inner locomotion in the open field) was strongly influenced by a QTL (Anxrr16) on rat chromosome 4. Since then, several other studies not only corroborated the initial description of Anxrr16, but also extrapolated its effects to a broader context (rats from both sexes and regardless of the estrous cycle phase) and suggested that this same region influences other emotionality-related behaviors as well as alcohol intake. Other QTLs affecting neurobiological traits were also found on rat chromosome 4 and several candidate genes have been pointed out as possibly influencing those phenotypes. Altogether, these studies suggest that rat chromosome 4 constitutes an interesting target for the study of the molecular bases of anxiety and other traits related to emotional reactivity.

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