oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 2439 matches for " Macedo Delarmelina "
All listed articles are free for downloading (OA Articles)
Page 1 /2439
Display every page Item
Efeitos citotóxico, genotóxico e mutagênico da tintura de Matricaria chamomilla L. in vivo
Macedo Delarmelina,Juliana; Pimentel Batitucci,Maria do Carmo; de Oliveira Gon?alves,Jefferson Luiz;
Revista Cubana de Plantas Medicinales , 2012,
Abstract: introduction: matricaria chamomilla l. is one plant of asteraceae family, whose common name is white chamomille. its flowers have different substances with therapeutic properties for healing and prevention of various ailments, among them, gastrointestinal upset, inflammation, stress and hypertension. objectives: to in vivo evaluate the cytotoxic, genotoxic and mutagenic activity of matricaria chamomilla vegetal tincture, using the micronucleus assay in rodent bone marrow (n= 6/group) and the allium cepa l. test. methods: for the carrying out of micronucleaus assay, 6 experimental groups were formed and administered: cisplatin (positive control), 0.9 % saline solution (negative control), 64 % alcohol (solvent control drug), matricaria chamomilla tincture at 0,02 and 0,1 μl/g/d doses, equivalent to 20 and 100 drops daily, respectively, considering an adult (75 kg) and the above-clinical dose (400 μl/d). the animals were exposed to 5 days of treatment, and slaughtered on the sixth, with the exception of positive controls. as for the test in allium cepa, 5 experimental groups were determined, and administered distilled water (negative control), matricaria chamomilla in concentrations of 1 and 5 mg/ml and 64 % diluted alcohol in the same proportions as the tincture (solvent control drug 1 and 2). results: the results demonstrated that matricaria chamomilla tincture was neither mutagenic, genotoxic nor citotoxic at tested concentrations, with the exception of the above-clinical dose, which showed mutagenicity. conclusions: matricaria chamomile tincture when administered in concentrations proportional to those prescribed to humans, showed neither cytotoxicity nor mutagenicity in mice and just genotoxicity in allium cepa, paying attention to its careful use in high quantities.
Efeitos citotóxico, genotóxico e mutagênico da tintura de Matricaria chamomilla L. in vivo Efectos citotóxico, genotóxico y mutagénico in vivo de la tintura de Matricaria chamomilla L. The cytotoxic, genotoxic and mutagenic effects of Matricaria chamomilla L. tincture in vivo
Juliana Macedo Delarmelina,Maria do Carmo Pimentel Batitucci,Jefferson Luiz de Oliveira Gon?alves
Revista Cubana de Plantas Medicinales , 2012,
Abstract: Introdu o: Matricaria chamomilla L. é uma planta pertencente à família Asteraceae cujo nome popular é camomila branca. Suas flores possuem diversas substancias com propriedades terapêuticas para cura e preven o de diversos males, dentre eles, desconforto gastrointestinal, inflama es, estresse e hipertens o. Objetivos: avaliar a atividade citotóxica, genotóxica e mutagênica in vivo da tintura vegetal de Matricaria chamomilla utilizando o ensaio de micronúcleo em medula óssea de roedores, n= 6/grupo e o teste em Allium cepa L. Métodos: para a realiza o do ensaio de micronúcleo foram determinados 6 grupos experimentais, os quais foram administrados: cisplatina (controle positivo), solu o salina 0,9 % (controle negativo), álcool etílico 64 % (controle solvente da droga), tintura de Matricaria chamomilla 0,02 e 0,1 μL/g/d proporcionais a 20 e 100 gotas diárias, respectivamente, considerando-se um indivíduo adulto de 75 kg, e dosagem supra-clínica (400 μL/d). Os animais foram expostos a 5 d de tratamento e sacrificados no sexto, com exce o do controle positivo. Para a realiza o do teste em Allium cepa foram determinados 5 grupos experimentais, os quais foram administrados: água destilada (controle negativo), tintura de Matricaria chamomilla nas concentra es de 1 e 5 mg/mL e álcool 64 % diluído nas mesmas propor es que a tintura (controle solvente da droga 1 e 2). Resultados: os resultados demonstraram que a tintura de Matricaria chamomilla n o foi mutagênica, genotóxica e citotóxica nas concentra es testadas, com exce o da dosagem supra-clínica, que apresentou mutagenicidade. Conclus es: a tintura de Matricaria chamomilla quando administrada em dosagens proporcionais às preconizadas para humanos, n o demonstrou citotoxicidade e mutagenicidade para camundongos e genotoxicidade em Allium cepa, chamando aten o para seu uso sob cautela em elevadas quantidades. Introducción: Matricaria chamomilla L. es una planta perteneciente a la familia Asteraceae, cuyo nombre popular es camomila blanca. Sus flores poseen diversas sustancias con propiedades terapéuticas para la cura y prevención de diversos males, entre ellos, malestar gastrointestinal, inflamaciones, estrés e hipertensión. Objetivos: evaluar la actividad citotóxica, genotóxica y mutagénica in vivo de la tintura vegetal de Matricaria chamomilla utilizando el ensayo de micronúcleo en médula ósea de roedores, n= 6/grupo y la prueba en cepa Allium L. Métodos: para la realización del ensayo de micronúcleo fueron determinados grupos experimentales, a los cuales se les administró: cisplatina (control posit
Lodo de esgoto como substrato para produ??o de mudas de Tectona grandis L.
Gomes, Daniele Rodrigues;Caldeira, Marcos Vinicius Winckler;Delarmelina, William Macedo;Gon?alves, Elzimar de Oliveira;Trazzi, Paulo André;
CERNE , 2013, DOI: 10.1590/S0104-77602013000100015
Abstract: the sewage sludge is a waste from sewage treatment plants, which can be used in formulations of substrates for seedling production. this study aimed to evaluate the effects of different proportions of sewage sludge, soil and commercial substrate on the growth characteristics of tectona grandis seedlings in tubes of 120 cm3 volume capacity. the sewage sludge used came from the stp's cachoeiro de itapemirim / es. the seedlings were grown in the forest nursery / cca / ufes. the statistical design used in the experiment was completely randomized design (crd) with six treatments and five replications. the treatments constituted of sewage sludge : commercial substrate: soil (v: v: v), which corresponded to 20:70:10 (t1), 40:50:10 (t2), 60:30:10 (t3), 80 : 10:10 (t4), 90:0:10 (t5) and the control treatment with 0:90:10 (t6). all variables assessed were significant at the 5% level of probability. the control (t6) showed results statistically equal to or lower than the treatments t3 with 60% of sewage sludge concentration (t3). it follows then that the use of sewage sludge in seedling production is feasible and promising, however, used in a proper proportion.
Caso radiológico
Macedo,Filipe;
Nascer e Crescer - Revista do Hospital de Crian?as Maria Pia , 2011,
Abstract: we present a case of a 15 month old female in whom a voiding cystourethrography (vcu) was performed following a febrile urinary tract infection. the exam showed a duplex left kidney with vesicouretral reflux (vur) to the lower moiety. vcu is the most common method for initial diagnosis of vur and reflux to the lower moiety of a duplex kidney has a typi-cal configuration.
Caso radiológico
Macedo,Filipe;
Nascer e Crescer - Revista do Hospital de Crian?as Maria Pia , 2011,
Abstract: we present a case of an 11 year old girl in whom an x-ray of the vertebral column was performed to investigate back pain. spine x-ray showed spondylolysis and spondylolisthesis at l5-s1. spondylolylis is one of the most common causes of back pain in older children and adolescents. the diagnosis is usually made by x-ray and/or ct.
Caso Radiológico
Macedo,Filipe;
Nascer e Crescer - Revista do Hospital de Crian?as Maria Pia , 2010,
Abstract: we present a case of a 17-?year-?old adolescent with a painless hard palpable mass in the left supraclavicular fossa. thoracic x-?ray revealed a left cervical rib. a normal variant of the ribs must be considered in the differential diagnosis of a supraclavicular mass. in most cases x-?ray is sufficient for the diagnosis.
Caso radiológico
Macedo,Filipe;
Nascer e Crescer - Revista do Hospital de Crian?as Maria Pia , 2011,
Abstract: we present a case of a 15-year-old boy in whom an x-ray of the vertebral column was performed to investigate dorsal hi-percyphosis. the exam showed partial block vertebrae in d8-d9. block vertebrae may be congenital or acquired, partial or com-plete. most of the times it is an incidental x-ray finding.
Caso radiológico
Macedo,Filipe;
Nascer e Crescer - Revista do Hospital de Crian?as Maria Pia , 2011,
Abstract: we present a case of a third trimester fetus with a cervical mass. fetal mri was performed to better evaluate the extension of the mass and the risk of obstruction of the airway in the neonatal period. mri is very useful in the evaluation of fetal cervical masses.
Como a diferen?a passa do centro à margem nos currículos: o exemplo dos PCN
Macedo, Elizabeth;
Educa??o & Sociedade , 2009, DOI: 10.1590/S0101-73302009000100005
Abstract: this paper assumes that the analysis of the curriculum policy is weakened by a state-centered model that cannot correctly address the relationship between structure and agency. based on e. laclau's and c. mouffe's discursive theory, it analyzes the curriculum policy to show they are hegemonic articulations to fill up the empty signifier "quality of education". it examines the brazilian national curriculum, especially the science and the transversal themes components, focusing on how universalistic articulations try to undermine the demands of difference. considering that such articulations may be spotlighted in the way these curriculum texts were enunciated, it highlights two major strategies used in the national curriculum: its division into two components, the less institutionalized one containing the demands of difference; and the struggles to control this latter component from within.
Alfabetiza??o, linguagem e ideologia
Macedo, Donaldo;
Educa??o & Sociedade , 2000, DOI: 10.1590/S0101-73302000000400007
Abstract: this article conceives literacy as a form of cultural policy. it criticizes literacy theories in order to make room for a new approach. it also focuses on literacy campaigns, especially those carried out in former colonies of africa. finally, the paper argues that if literacy programs are to adopt a liberating perspective, they must be based on the students' own language.
Page 1 /2439
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.