Now showing items 1-10 of 27

    • Are endogenous sex hormones related to DNA damage in paradoxically sleep-deprived female rats? 

      Andersen, Monica Levy [UNIFESP]; Ribeiro, Daniel Araki [UNIFESP]; Alvarenga, Tathiana Aparecida [UNIFESP]; Silva, Andressa [UNIFESP]; Araujo, Paula [UNIFESP]; Zager, Adriano [UNIFESP]; Tenório, Neuli Maria [UNIFESP]; Tufik, Sergio [UNIFESP] (Elsevier B.V., 2010-02-01)
      The aim of this investigation was to evaluate overall DNA damage induced by experimental paradoxical sleep deprivation (PSD) in estrous-cycling and ovariectomized female rats to examine possible hormonal involvement during ...

    • Association of methamidophos and sleep loss on reproductive toxicity of male mice 

      Maia, Lucas O. [UNIFESP]; Dias Junior, Walter; Carvalho, Loraine S.; Jesus, Luciana R.; Paiva, Greice D.; Araujo, Paula [UNIFESP]; Costa, Marcos F. O.; Andersen, Monica L. [UNIFESP]; Tufik, Sergio [UNIFESP]; Mazaro-Costa, Renata (Elsevier B.V., 2011-09-01)
      This study investigated the effects of organophosphate exposure on the male reproductive system of mice submitted to chronic sleep loss condition. Adult Swiss mice were distributed into 4 groups: control; methamidophos ...

    • Avaliação da tolerabilidade e do controle de ciclo de dois contraceptivos orais de baixa dose: estudo comparativo aberto 

      Baracat, Edmund Chada [UNIFESP]; Barbosa, Ione Cristina; Campos, Altamiro A.; Hyppolito, Sylvia B.; Melo, Nilson Roberto de; Mussielo, Rafael; Nassar, Rosival; Pinho-Neto, João Sabino de Lima; Tomaz, Geraldez (Federação Brasileira das Sociedades de Ginecologia e Obstetrícia, 1998-06-01)
      An open-label comparative study was conducted in nine centers in Brazil to evaluate the tolerability and cycle control of two low-dose oral contraceptives containing 20 mg ethynylestradiol/75 mg gestodene and 20 mg ...

    • Concentration of glycosaminoglycan in ovariectomized mice uterus after treatment with ovarian steroids 

      Maioral, Gabriela C. C. C. [UNIFESP]; Gomes, Regina Celia T. [UNIFESP]; Verna, Carina [UNIFESP]; Simoes, Manuel de J. [UNIFESP]; Nader, Helena B. [UNIFESP]; Simoes, Ricardo S.; Baracat, Edmund C.; Soares-, Jose Maria, Jr. (Hindawi Publishing Corp, 2016)
      The aim of this study was to evaluate the amount of non-and sulfated glycosaminoglycans in the ovariectomized mice uterus, after treatment with ovarian steroids. For this purpose, 50 adult female mice were divided into ...

    • Different stress modalities result in distinct steroid hormone responses by male rats 

      Andersen, Monica Levy [UNIFESP]; Bignotto, Magda [UNIFESP]; Machado, Ricardo Borges [UNIFESP]; Tufik, Sergio [UNIFESP] (Associação Brasileira de Divulgação Científica, 2004-06-01)
      Since both paradoxical sleep deprivation (PSD) and stress alter male reproductive function, the purpose of the present study was to examine the influence of PSD and other stressors (restraint, electrical footshock, cold ...

    • Diurnal variation in the genital reflexes and hormone levels induced by paradoxical sleep deprivation and cocaine in male rats 

      Andersen, Monica Levy [UNIFESP]; Papale, Ligia Assumpção [UNIFESP]; Tufik, Sergio [UNIFESP] (Elsevier B.V., 2004-09-30)
      The purpose was to ascertain whether the genital reflexes induced by paradoxical sleep deprivation (PSD) in male rats show diurnal variation, and whether the hormonal rhythm of testosterone and progesterone is involved in ...

    • Does male sexual behavior require progesterone? 

      Andersen, Monica Levy [UNIFESP]; Tufik, Sergio [UNIFESP] (Elsevier B.V., 2006-06-01)
      In this article, we provide a concise review of the past and current literature on the neglected influence of progesterone on male sexual behavior. Although there has been increased interest in all aspects of male sexual ...

    • Effect of sildenafil (Viagra®) on the genital reflexes of paradoxical sleep-deprived male rats 

      Andersen, Monica Levy [UNIFESP]; Bignotto, Magda [UNIFESP]; Tufik, Sergio [UNIFESP] (Associação Brasileira de Divulgação Científica, 2007-11-01)
      Since there is evidence that paradoxical sleep deprivation (PSD) elicits penile erection (PE) and ejaculation (EJ), and that the erectile response of rats is mediated by nitric oxide, the present study sought to extend the ...

    • Effects of hormone therapy with estrogen and/or progesterone on sleep pattern in postmenopausal women 

      Hachul, Helena [UNIFESP]; Bittencourt, Lia R. A. [UNIFESP]; Andersen, Monica L. [UNIFESP]; Haidar, Mauro Abi [UNIFESP]; Baracat, Edmund C. [UNIFESP]; Tufik, Sergio [UNIFESP] (Elsevier B.V., 2008-12-01)
      Objective: To investigate the effects of estrogen and progesterone on steep in postmenopausal women. Method: the 33 participants were randomly assigned to an estrogen or placebo group after undergoing clinical and hormonal ...