12º Encontro Acadêmico de Produção Científica

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A produção do conhecimento é o principal recurso de que dispõe a sociedade para criar oportunidades de crescimento individual e coletivo, e o desenvolvimento das organizações está ligado à disponibilidade de recursos tecnológicos e humanos adequados a seus propósitos.

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A produção do conhecimento é o principal recurso de que dispõe a sociedade para criar oportunidades de crescimento individual e coletivo, e o desenvolvimento das organizações está ligado à disponibilidade de recursos tecnológicos e humanos adequados a seus propósitos.

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    Influência do ciclo estral sobre o comportamento no labirinto em cruz elevado em ratas nulíparas e primíparas submetidas ao estresse
    (Centro Universitário da Fundação de Ensino Octávio Bastos, 2011-05-30) SOUZA NETO, José Roberto de; ZIMBERKNOPF, Érica
    Previous studies with rodents have shown reproductive experience (pregnancy, childbirth and lactation), can alter the sensitivity to anxiety and stress. In this sense, a reduction in anxiety in the elevated plus-maze has already been observed in experienced females. The aim of the present study is to evaluate the effect of stress in nulliparous and primiparous rats at various stages of the estrous cycle. Two groups of individuals will be generated, a group of primiparous women (n = 8; gestation + 21 days of lactation) and a group of nulliparous women (n = 8) matched by age. After obtaining the females, the experimental groups will be subjected to stress by containment for 25 minutes, followed by 5 minutes for rest, and soon after subjected to the behavioral assessment in the elevated plus maze for 5 min. The retest will be performed 24 hours after the initial test. The experimental procedures will be performed in 3 phases of the estrous cycle: proestrus, estrus and metestrus, in groups of different nulliparous and primiparous females (n = 48). This research project aims to continue previous studies in our laboratory about reproductive experience and its relationship with anxiety and stress.
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    Influência da fase do ciclo estral sobre a secreção de prolactina induzida por estresse agudo em ratas nulíparas e primíparas
    (Centro Universitário da Fundação de Ensino Octávio Bastos, 2011-05-30) SILVA Flávia Martins da; ZIMBERKNOPF, Érica
    Prolactin is the hormone classically related to the development of the mammary glands during pregnancy and postpartum milk production. The release of this adenohypophyseal hormone may be affected by stress, thus resulting in increased production. Physiological factors such as reproductive experience, sum of pregnancy, childbirth and lactation, and the stage of the estrous cycle also has an action on prolactin secretion, reducing its serum concentration. In previous studies, we observed that the reproductive experience is able to modulate the release of prolactin in response to acute stress and that this fact is related to the type of stress applied in rats. In this context, the objective of this work is to study the influence of the estrous cycle on serum prolactin concentrations during the first hour of acute stress induction in primiparous and nulliparous rats.
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    Efeito do estresse sobre a secreção de prolactina em ratas nulíparas e primíparas no estro
    (Centro Universitário da Fundação de Ensino Octávio Bastos, 2011-05-30) CARLOS, Camila Zeferino; ZIMBERKNOPF, Erica
    The reproductive experience (set of pregnancy, childbirth and lactation), is associated with changes in hormone secretion, reducing hormones such as steroids and prolactin. Prolactin plays an important role in the reproductive process, especially in lactation, controlling the production and composition of milk. This hormone responds to stressful stimuli, and its response is dependent on blood prolactin concentrations before stress. The aim of this study is to evaluate the influence of stress on prolactin secretion in nulliparous and primiparous rats during estrus, continuing our studies.
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