Holter electrocardiography in dogs showing doxorubicin-induced dilated cardiomyopathy

O estudo consistiu na identificação precoce da ocorrência de arritmias em cães com cardiomiopatia dilatada experimental induzida pela doxorrubicina (DOX). Utilizaram-se 10 cães adultos, sadios, distribuídos nos grupos A (n=5) e B (n=5). O grupo B recebeu 30mg/m² de DOX, via intravenosa, a cada 21 dias, até a dose cumulativa de 180 ou 240mg/m². No grupo A (controle), administrou-se solução salina 0,9%, via intravenosa, nos mesmos intervalos do grupo B. Ao se evidenciar o quadro de disfunção miocárdica nos cães do grupo B, caracterizado pela fração de encurtamento menor que 20%, aumento da separação septal do ponto E acima de 0,7cm e aumento do índice volumétrico do ventrículo esquerdo ao final da sístole (61,4ml/m²), realizaram-se os eletrocardiogramas por 24 horas. Os resultados demonstraram aumentos de 44,6% e 41,7% nas freqüências cardíacas mínima e média, respectivamente, e presença, com maior freqüência, de arritmias supraventriculares do que ventriculares nos animais do grupo B. Concluiu-se que o Holter é eficaz e demonstra, com precocidade e melhor definição, as alterações da freqüência e do ritmo cardíaco de cães com disfunção miocárdica induzida pela doxorrubicina.

SOLID STATE ELECTROCHEMICAL BEHAVIOR of USNIC ACID AT A GLASSY CARBON ELECTRODE

The electrochemical redox behavior of usnic acid, mainly known for its antibiotic activity, has been investigated using cyclic, differential pulse and square wave voltammetry in aqueous electrolyte. These studies were carried out by solid state voltammetry with the solid mechanically attached on the surface of a glassy carbon electrode and at different pH values. Usnic acid did not present any reduction reaction. The pH-dependent electrochemical oxidation occurs in three steps, one electron and one proton irreversible processes, assigned to each of the hydroxyl groups in the molecule. Adsorption of the non-electroactive oxidation product was also observed, blocking the electrode surface. An oxidation mechanism was proposed and electroanalytical methodology was developed to determine usnic acid.

Tratamento térmico para controle da lanosidade em pêssegos 'Dourado-2' refrigerados

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Social disability of Brazilian mood disorder patients

Mood disorders cause many social problems, often involving family relationships. Few studies are available in the literature comparing patients with bipolar, unipolar, dysthymic, and double depressive disorders concerning these aspects. In the present study, demographic and disease data were collected using a specifically prepared questionnaire. Social adjustment was assessed using the Disability Adjustment Scale and family relationships were evaluated using the Global Assessment of Relational Functioning Scale. One hundred patients under treatment for at least 6 months were evaluated at the Psychiatric Outpatient Clinic of the Botucatu School of Medicine, UNESP. Most patients were women (82%) more than 50 (49%) years old with at least two years of follow-up, with little schooling (62% had less than 4 years), and of low socioeconomic level. Logistic regression analysis showed that a diagnosis of unipolar disorder (P = 0.003, OR = 0.075, CI = 0.014-0.403) and dysthymia (P = 0.001, OR = 0.040, CI = 0.006-0.275) as well as family relationships (P = 0.002, OR = 0.953, CI = 0914-0.992) played a significant role in social adjustment. Unipolar and dysthymic patients presented better social adjustment than bipolar and double depressive patients (P < 0.001), results that were not due to social class. These patients, treated at a teaching hospital, may represent the severest mood disorder cases. Evaluations were made knowing the diagnosis of the patients, which might also have influenced some of the results. Social disabilities among mood disorder patients are very frequent and intensive.

Cortisol in saliva and plasma of cattle after ACTH administration and milking

Interest in the measurement of salivary cortisol has increased recently because saliva can be easily collected before and after an imposed stress. This study evaluated the relationship between plasma and salivary concentrations of cortisol following ACTH administration in calves ( experiment 1) and machine milking of adult cows ( experiment 2). A catheter was inserted into the jugular vein of all animals 72 h before the beginning of experiments. Blood and saliva samples were collected before and after ACTH administration (0.6 IU/kg BW) in calves or before and after machine milking of cows. Using a cotton swab, each saliva sample was taken immediately following the blood sample. In general, cortisol profiles were similar in plasma and saliva and correlated in both experiments; however, plasma concentrations were significantly higher than salivary concentrations. In addition, the differences between cortisol concentrations measured in saliva and plasma within each experiment varied substantially between animals and samples. Furthermore, in experiment 2, nearly 10% of salivary samples were below limits of detection. The sharp peaks in cortisol after ACTH administration in both the plasma and saliva were reflected adrenal stimulation. In addition, increases in cortisol in response to milking in both the plasma and saliva suggest that salivary sampling is a reliable option when studying cortisol responses to normal physiological events.

Preparation and thermal characterization of inclusion complex of Brazilian green propolis and hydroxypropyl-beta-cyclodextrin

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

As máscaras do narrador realista: uma leitura de Jacques le fataliste de Denis Diderot

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Os estudos geopolíticos no Brasil: uma contribuição para sua avaliação

O texto faz um balanço dos estudos geopolíticos realizados no Brasil, mostrando os principais temas discutidos no período 1920-1980.

Análise do equilíbrio e da qualidade de vida de idosos com Alzheimer e a influência na qualidade de vida do Cuidador

With the growing aging population will be an increase of chronic degenerative diseases such as dementia. Among the various forms of dementia Alzheimer’s disease (AD) is the most prevalent. In individuals with AD, there is a loss in the processing of sensory information, which may aggravate the imbalance and falls. As the disease progresses, the individual lose the ability to function independently, becoming dependent on a caregiver. This study aimed to analyze the balance of the mental state and quality of life of individuals with AD, to determine whether a correlation exists between these variables and analyze the influence on quality of life of caregivers. This study was conducted with thirty individuals (82.86 ± 9.07 years) with AD, both sexes, and their caregivers. The evaluation of the balance was accomplished by the Scale of Functional Balance of Berg (EEFB), the cognitive function for the Mini-exam of the Mental State (MEEM), and the quality of life (QV) for the scale “life Quality - Disease of Alzheimer “ (QdV - DA) that is composed for three versions: patient, caregiver and family The data were analyzed by coefficient of correlation of Spearman. The balance analyses (EEFB=32,17 ± 13,26 points) shows increased in the risk of falls in the elderly and negative correlation (R = - 0,55, p <0,01) with age and good correlation with MEEM (R=0,63 p <0,01). Already in relation of the MEEM and QV, can observed correlation between the familiar version and the MEEM ((R=0,40 p=0,02). In Relation the versions of the QV questionnaire, found significant correlation among: QdV-DA patient X caregiver (R=0,41 p=0,02), QdV-DA patient X family (R=0,40 p=0,03). In this way we can conclude that the individuals with DA, appraised in this study, present a deficit in the balance, so much related with the age as with to the cognitive decline, and the greater the cognitive decline worse the impression of caring about the QOL of their family, and still, that the worsening in the quality of the patient’s life contemplates in a worsening in the quality of your caregiver’s life.

O sentido da revolução brasileira

Procuramos discutir no presente artigo o caráter da revolução burguesa no Brasil. Para tanto buscamos delinear os elementos essenciais que marcam a particularidade histórica brasileira, demonstrando que tais elementos condicionam a forma de ser do capitalismo no país em sua reprodução sociometabólica, apontando para o elemento de permanência na mudança, marca fundamental do sentido da modernização no Brasil.

Preparação de atores: conexões entre Diderot, Stanislavski e Strasberg

A proposta deste trabalho acadêmico é comparar os métodos de preparação de atores de Denis Diderot, Constantin Stanislavski e Lee Strasberg, evidenciando a linha evolutiva que se estabelece entre eles, recortando-os de acordo com a estética audiovisual. Na primeira parte realizaremos o levantamento histórico e estrutural dos métodos, partindo do ensaio proposto por Diderot no século XVIII, passando pelo sistema de Stanislavski e finalmente aportando no método de Strasberg. Num segundo momento, elaboraremos a comparação entre esses estudos para, finalmente, em uma última etapa, discutir a evidenciação do processo evolutivo que origina as diversas técnicas da área, a fim compreende-las em sua plenitude a partir do apontamento dos pontos de interseção