Navegando por Palavras-chave "feeding behavior"

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    Maternal deprivation alters growth, food intake, and neuropeptide Y in the hypothalamus of adolescent male and female rats
    (Wiley-Blackwell, 2016) Wertheimer, Guilherme Soares de Oliveira [UNIFESP]; Girardi, Carlos Eduardo Neves [UNIFESP]; Oliveira, Alexandra de Sousa Miragaia de [UNIFESP]; Longo, Beatriz Monteiro [UNIFESP]; Suchecki, Deborah [UNIFESP]
    Maternal deprivation (MD) for 24 hr during the neonatal period impairs body weight gain in adolescent and adult rats. It has been previously shown that maternally deprived rats consume less standard and carbohydrate-rich diets. Because neuropeptide Y (NPY) is implicated in feeding behavior, we assessed, prospectively, the effects of maternal deprivation, imposed on postnatal days (PND) 3 (DEP3) or 11 (DEP11), on physical development (snout-anal length and body weight gain, measured once a week) and food intake (assessed daily, during the rest and active phases, from PND 23 to PND 51)
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    Melatonin Absence Leads to Long-Term Leptin Resistance and Overweight in Rats
    (Frontiers Media Sa, 2018) Buonfiglio, Daniella; Parthimos, Rafaela; Dantas, Rosana; Silva, Raysa Cerqueira; Gomes, Guilherme; Andrade-Silva, Jessica; Ramos-Lobo, Angela; Amaral, Fernanda Gaspar [UNIFESP]; Matos, Raphael; Sinesio Jr., Jose; Motta-Teixeira, Livia Clemente; Donato Jr., Jose; Reiter, Russel J.; Cipolla-Neto, Jose
    Melatonin (Mel), a molecule that conveys photoperiodic information to the organisms, is also involved in the regulation of energy homeostasis. Mechanisms of action of Mel in the energy balance remain unclear
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    Parental Feeding Practices among Brazilian School-Aged Children: Associations with Parent and Child Characteristics
    (Frontiers Media Sa, 2017) Mais, Lais Amaral [UNIFESP]; Warkentin, Sarah [UNIFESP]; Dias de Oliveira Latorre, Maria do Rosario; Carnell, Susan; Aguiar de Carrazedo Taddei, Jose Augusto [UNIFESP]
    Background: Children's eating behavior, food intake, and weight status are highly influenced by parents, who shape their food environment via parental feeding practices. The aim of this study was to investigate associations between sociodemographic, anthropometric, and behavioral/attitudinal characteristics of parents and their 5- to 9-year-old children and a range of positive ("healthy eating guidance," "monitoring") and potentially negative ("restriction for weight control," "restriction for health," "emotion regulation/food as reward," and "pressure") parental feeding practices. Methods: Parents completed a questionnaire assessing parental and child characteristics. Parental feeding practices were measured using a Brazilian adaptation of the Comprehensive Feeding Practices Questionnaire. To test associations between parent and child characteristics and parental feeding practices, we ran bivariate logistic regression models with parent and child characteristics as independent variables and high (above median) scores on individual parental feeding practices as outcome variables. We then conducted multivariate logistic regression models containing all parent and child characteristics, controlling for child age and maternal education. Results: Lower parental perceived responsibility for child feeding, higher child use of screen devices, and higher child ultra-processed food intake were associated with lower scores on "healthy eating guidance" and "monitoring." Higher parental perceived responsibility for child feeding and concern about child overweight were associated with higher scores on "restriction for weight control" and "restriction for health." Parental perceptions of low weight and concern about child underweight, and higher perceived responsibility for child feeding, were associated with higher scores on "pressure." Greater intake of ultra-processed foods and lower maternal age were associated with higher scores on "emotion regulation/food as reward." Conclusion: Parental concerns and perceptions relating to child weight were predictive of potentially negative feeding practices. Higher scores on potentially negative feeding practices, and lower scores on positive parent feeding practices, were associated with poorer child diet and higher use of screen devices. Parental engagement in the feeding interaction predicted greater adoption of both potentially negative and positive feeding practices. These results support the need for policies and programs to educate parents about child feeding and help motivated parents to promote healthy lifestyles in their children.
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    A reassessment of the hyperphagia/weight-loss paradox during sleep deprivation
    (Amer Academy Sleep Medicine, 2006-09-01) Martins, Paulo J. F. [UNIFESP]; D'Almeida, Vânia [UNIFESP]; Nobrega, Jose N.; Tufik, Sergio [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Ctr Addict & Mental Hlth
    Study Objectives: Sleep deprivation is a well-known paradigm to investigate the deleterious effects of prolonged wakefulness. Previous studies have shown that, during sleep deprivation, rats are hyperphagic but, paradoxically, lose body weight. This phenomenon has been attributed to increased metabolism. However, most previous studies have failed to account for food spillage, which may be considerable during sleep deprivation.Design: In the present study, we revisited the issue of feeding changes in sleep-deprived rats and introduced different procedures to allow accurate estimation of food spillage prior to, during, and after 120 hours of sleep deprivation by a single platform technique.Setting: Animal Sleep Research Laboratory, Psychobiology Department, Universidade Federal de Sao Paulo, Brazil.Measurements and Results: The main finding was that, once corrected for spillage, food intake was not significantly increased during sleep deprivation. Increases in food removed from feeders were accompanied by proportional increases in food spillage, resulting in no net changes in food intake. Further, weight loss did occur during the sleep-deprivation period, especially in the first 24 hours, and it was actually explained by a reduction in food intake.Conclusion: The hyperphagia/weight-loss paradox previously seen during prolonged sleep deprivation does not necessarily occur with shorter periods of deprivation. Although we found no evidence of hyperphagia for up to 5 days of sleep deprivation in chow-fed rats, our data suggest that an impairment in the ability to increase food intake in response to increased energy expenditure contributes to the energy deficit during sleep deprivation in rats.
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    Sleep deprivation-induced gnawing - relationship to changes in feeding behavior in rats
    (Elsevier B.V., 2008-01-28) Martins, P. J. F. [UNIFESP]; Nobrega, J. N.; Tufik, S. [UNIFESP]; D'Almeida, V. [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Ctr Addict & Mental Hlth
    We have recently reported that food spillage increases during sleep deprivation in rats, which may lead to an overestimation of food intake in this condition. the objective of this study was to verify whether sleep deprivation induces an increase in gnawing behavior that could account for increased food spillage and apparent increase in food intake. We introduced wood blocks as objects for gnawing and determined the effects of their availability on food consumption and food spillage during sleep deprivation. Wood block availability reduced the amount of food removed from hoppers and decreased the amount of food spilled. However, weight loss still occurred during the sleep deprivation period, especially in the first 24 h, and it was related to a reduction in food intake. Sleep deprivation causes an increase in stereotyped gnawing behavior which largely accounts for increased food spillage observed during deprivation. Specifically, the observed increase in food removed from feeders seems to be due to an increase in gnawing and not to increased hunger. However, even when appropriately corrected for spillage, food intake decreased in the first 24 h of sleep deprivation, which accounted for most of the body weight loss seen during the 96 h of sleep deprivation. (C) 2007 Elsevier Inc. All rights reserved.