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      Relação entre sono e obesidade: uma revisão da literatura Translated title: Relation between sleep and obesity: a literature review

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          Abstract

          A diminuição do tempo de sono tem se tornado uma condição endêmica na sociedade moderna, e a literatura atual tem encontrado importantes associações epidemiológicas entre o prejuízo no padrão habitual do sono e a obesidade. Com base nisso, a presente revisão analisou o papel do sono e da sua alteração no desencadeamento da obesidade. Diversos estudos indicam que os indivíduos que dormem menos têm uma maior possibilidade de se tornarem obesos, e que o encurtamento do sono aumenta a razão grelina/leptina, gerando o aumento do apetite e da fome. Isto pode estar associado à maior ingestão calórica e ao desencadeamento da obesidade. Dessa forma, um padrão adequado de sono torna-se fundamental para o controle da massa corporal, devendo ser incentivado pelos profissionais da saúde.

          Translated abstract

          Reduction in sleep time has become an endemic condition in modern society and current literature has found important epidemiological associations between damage in the habitual standard of sleep and obesity. On this basis, the present revision analyzed the role of sleep and its alteration in the promotion of obesity. Diverse studies indicate that subjects that sleep less have greater possibility of becoming obese, and the shortening of sleep increases the leptin/grelin reason, generating increase of the appetite and hunger. This can be associated to the biggest caloric intake and promotion of obesity. An adequate standard of sleep becomes basic for the regulation of body mass and must be stimulated by health professionals.

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          Most cited references92

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          Obesity wars: molecular progress confronts an expanding epidemic.

          The worldwide prevalence of obesity is increasing at an alarming rate, with major adverse consequences for human health. This "obesity epidemic" is paralleled by a rapid and substantive increase in our understanding of molecular pathways and physiologic systems underlying the regulation of energy balance. While efforts to address the environmental factors that are responsible for the recent "epidemic" must continue, new molecular and physiologic insights into this system offer exciting possibilities for future development of successful therapies.
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            The link between short sleep duration and obesity: we should recommend more sleep to prevent obesity.

            S Taheri (2006)
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              Leptin regulates bone formation via the sympathetic nervous system.

              We previously showed that leptin inhibits bone formation by an undefined mechanism. Here, we show that hypothalamic leptin-dependent antiosteogenic and anorexigenic networks differ, and that the peripheral mediators of leptin antiosteogenic function appear to be neuronal. Neuropeptides mediating leptin anorexigenic function do not affect bone formation. Leptin deficiency results in low sympathetic tone, and genetic or pharmacological ablation of adrenergic signaling leads to a leptin-resistant high bone mass. beta-adrenergic receptors on osteoblasts regulate their proliferation, and a beta-adrenergic agonist decreases bone mass in leptin-deficient and wild-type mice while a beta-adrenergic antagonist increases bone mass in wild-type and ovariectomized mice. None of these manipulations affects body weight. This study demonstrates a leptin-dependent neuronal regulation of bone formation with potential therapeutic implications for osteoporosis.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                abem
                Arquivos Brasileiros de Endocrinologia & Metabologia
                Arq Bras Endocrinol Metab
                Sociedade Brasileira de Endocrinologia e Metabologia (São Paulo )
                1677-9487
                October 2007
                : 51
                : 7
                : 1041-1049
                Affiliations
                [1 ] Universidade Federal de São Paulo Brazil
                [2 ] Universidade Federal de São Paulo Brazil
                Article
                S0004-27302007000700004
                10.1590/S0004-27302007000700004
                18157377
                c302cfa8-9932-431b-baf4-ef7ea337550d

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0004-2730&lng=en
                Categories
                ENDOCRINOLOGY & METABOLISM

                Endocrinology & Diabetes
                Obesity,Sleep,Leptin,Ghrelin,Food intake,Obesidade,Sono,Grelina,Leptina,Ingestão alimentar
                Endocrinology & Diabetes
                Obesity, Sleep, Leptin, Ghrelin, Food intake, Obesidade, Sono, Grelina, Leptina, Ingestão alimentar

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