12 research outputs found

    Efeito do extrato aquoso de Sida cordifolia na regeneração hepática após hepatectomia parcial

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    Introdução: O uso de plantas medicinais para o tratamento de patologias humanas tem aumentado em todo mundo. Muitas delas são usadas por administração oral, e após a absorção podem afetar muitos órgãos. Objetivo: Esse estudo, tem como objetivo verificar o efeito do extrato aquoso de Sida cordifolia, popularmente conhecida no Brasil como “malva-branca”, na regeneração hepática. Métodos: Vinte ratos foram divididos em 4 grupos: controle, Sida 100, Sida 200 e Sida 400. Os animais foram submetidos a administração oral de água destilada, 100, 200 e 400 mg/kg de extrato aquoso de Sida cordifolia, respectivamente. Imediatamente após, foi realizada hepatectomia parcial 67%. Vinte quatro horas após, os fígados foram removidos. A regeneração hepática foi avaliada por imunohistoquímica (PCNA), usando o anticorpo monoclonal PC-10. Resultados: Os grupos Sida100 e Sida200 mostraram índices de regeneração hepática maiores que o grupo controle (p<0.001 e p<0.05, respectivamente). Conclusão: O extrato aquoso de Sida cordifolia estimula a regeneração hepática após hepatectomia parcial a 67% em ratos. _________________________________________________________________________________________ ABSTRACT: Purpose: The use of medicinal plants for the treatment of human diseases has increased worldwide. Many of them are used by oral administration and, after absorption, may affect many organs. Therefore, this study aimed at assessing the effects of the aqueous extract of Sida cordifolia leaves, popularly known in Brazil as “malva-branca”, on liver regeneration. Methods: Twenty rats were divided into four groups: control, Sida100, Sida200 and Sida400 groups. All animals were submitted to oral administration of distilled water, 100, 200 and 400 mg/kg of the aqueous extract of Sida cordifolia, respectively. Immediately after this, they underwent 67% partial hepatectomy. Twenty four hours later, their livers were removed. Hepatic regeneration was assessed by immunohistochemical staining for proliferating cell nuclear antigen (PCNA) using the PC-10 monoclonal antibody. Results: Sida100 and Sida200 groups disclosed higher liver regeneration indices than control group (p<0.001 and p<0.05, respectively). Conclusion: The aqueous extract of Sida cordifolia stimulates liver regeneration after 67% partial hepatectomy in rats

    Laboratorio de marcha: trabajo multidisciplinario de 3 UIDETs de la Facultad de Ingeniería para un desarrollo extensionista

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    Se presenta una experiencia de trabajo conjunto y multidisciplinario ejecutada en el marco de un Proyecto de Extensión Universitaria denominado Laboratorio de Marcha y Análisis del Movimiento APRILP. Para su concreción se han reunido profesionales y alumnos de años superiores de diferentes disciplinas bajo la coordinación y dirección de la UIDET UNITEC. Intervienen otras dos UIDETs de la Facultad de Ingeniería en aspectos relacionados con cuestiones electrónicas específicas (UIDET CeTAD) y para lograr el financiamiento necesario para la implementación del sistema completo (UIDET "Formulación y Evaluación de Proyectos").Publicado en Terceras Jornadas de Investigación, Transferencia y Extensión. La Plata : Universidad Nacional de La Plata, 2015.Facultad de Ingenierí

    Botany, chemistry, and pharmaceutical significance of Sida cordifolia: a traditional medicinal plant

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    Sida cordifolia Linn. belonging to the family, Malvaceae has been widely employed in traditional medications in many parts of the world including India, Brazil, and other Asian and African countries. The plant is extensively used in the Ayurvedic medicine preparation. There are more than 200 plant species within the genus Sida, which are distributed predominantly in the tropical regions. The correct taxonomic identification is a major concern due to the fact that S. cordifolia looks morphologically similar with its related species. It possesses activity against various human ailments, including cancer, asthma, cough, diarrhea, malaria, gonorrhea, tuberculosis, obesity, ulcer, Parkinson’s disease, urinary infections, and many others. The medical importance of this plant is mainly correlated to the occurrence of diverse biologically active phytochemical compounds such as alkaloids, flavonoids, and steroids. The major compounds include β-phenylamines, 2-carboxylated tryptamines, quinazoline, quinoline, indole, ephedrine, vasicinone, 5-3-isoprenyl flavone, 5,7-dihydroxy-3-isoprenyl flavone, and 6-(isoprenyl)- 3-methoxy- 8-C-β-D-glucosyl-kaempferol 3-O-β-D-glucosyl[1–4]-α-D-glucoside. The literature survey reveals that most of the pharmacological investigations on S. cordifolia are limited to crude plant extracts and few isolated pure compounds. Therefore, there is a need to evaluate many other unexplored bioactive phytoconstituents with evidences so as to justify the traditional usages of S. cordifolia. Furthermore, detailed studies on the action of mechanisms of these isolated compounds supported by clinical research are necessary for validating their application in contemporary medicines. The aim of the present chapter is to provide a detailed information on the ethnobotanical, phytochemical, and pharmacological aspects of S. cordifolia

    Avaliação por tomografia computadorizada helicoidal dos efeitos da expansão rápida da maxila no posicionamento condilar em pacientes com mordida cruzada posterior funcional Evaluation with helicoidal computed tomography of rapid maxillary expansion effects in the condylar position of patients with functional posterior crossbite

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    OBJETIVO: este estudo clínico avaliou, por meio da tomografia computadorizada helicoidal, os efeitos da expansão rápida da maxila no posicionamento condilar de pacientes com mordida cruzada posterior funcional na fase da dentadura mista. MÉTODOS: dez pacientes com faixa etária entre os 7 anos e 2 meses e os 11 anos e 2 meses - apresentando mordida cruzada posterior funcional, com desvio da linha média de pelo menos 2,5mm para o lado do cruzamento - foram tratados com expansão rápida da maxila. Após a obtenção de cortes tomográficos sagitais da articulação temporomandibular, as medidas dos espaços articulares anterior, posterior e superior foram realizadas e o posicionamento relativo do côndilo foi calculado. Utilizando-se cortes tomográficos axiais, avaliou-se o posicionamento anteroposterior e transversal dos côndilos em relação às estruturas da base craniana. RESULTADOS: foram identificadas diferenças significativas, antes do tratamento, entre os espaços articulares posteriores, na posição relativa do côndilo e um posicionamento mais anterior e mais próximo ao plano sagital mediano do côndilo do lado não-cruzado. Após o tratamento, não foram evidenciadas diferenças significativas nessas medidas. CONCLUSÕES: após a expansão rápida da maxila, um posicionamento mais centralizado dos côndilos nas fossas articulares foi observado, além de uma maior simetria anteroposterior e transversal entre os mesmos.<br>AIM: This clinical study evaluated, through helicoidal computed tomography (CT), the effects of rapid maxillary expansion in the condylar position of patients with functional posterior crossbite in mixed dentition stage. METHODS: Ten patients aged between 7 years and 2 months and 11 years and 2 months were selected. This patients which presented functional unilateral posterior crossbite with mandibular midline deviation of at least 2.5mm to the crossbite side were submitted to rapid maxillary expansion. After obtaining sagittal CT slices of the temporomandibular joints, measurements of the anterior, posterior and superior joint spaces were carried out and the relative positioning of the condyle was calculated. Axial slices of the temporomandibular joint were also used to evaluate the anteroposterior and transversal position of the condyles in relation to the cranial base structures. RESULTS: Before treatment, significant differences were observed in the posterior joint spaces, in the relative positioning of the condyle and with the non-crossbite side condyle displaced more anteriorly and medially in relation to midsagittal line. After treatment there was no statistically significant difference. CONCLUSION: After the rapid maxillary expansion, a more centralized position of the condyles in the joint cavities was observed, and a greater anteroposterior and transverse symmetry between them
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