RESUMO
Modern westernized diet is a major risk factor associated with the current obesity epidemic. To study the effects of dietary choices of Western societies, the cafeteria diet has been validated as a preclinical model of obesity. We aimed to investigate the behavioral and metabolic alterations induced by a cafeteria diet on gene expression and neurotransmitter contents involved in neural plasticity and reward processing. Male Wistar rats were exposed to either standard or cafeteria diet for 9 weeks. Food intake and body weight were scored daily. Behavioral effects were assessed in the elevated plus-maze (EPM) and open field (OFT) tests. Serum biochemical parameters, brain monoamines, and BDNF, TrkB, CRF, CREB, and Dnmt3A mRNA levels were analyzed in reward-related brain regions. We found that cafeteria-diet rats consumed more energy and food than the control group, leading to increased body weight gain and adiposity. The cafeteria-diet rats showed an anxiolytic-like effect in the OFT, but not in the EPM. The cafeteria diet increased BDNF expression in the dorsal striatum (DS), and norepinephrine, 5-HT, TrkB, CREB, and Dnmt3A levels in the hippocampus. Additionally, multiple regression analysis showed that accumbal DOPAC and BDNF mRNA levels were robustly predicted by hyperphagia, fat mass accumulation, and body weight gain only in the cafeteria group. Overall, cafeteria diet-induced hyperphagia could lead to alterations in hedonic and motivational control of food intake through changes in dopamine metabolism and BDNF signaling in the nucleus accumbens and the DS.
Assuntos
Fator Neurotrófico Derivado do Encéfalo , Dopamina , Animais , Peso Corporal , Fator Neurotrófico Derivado do Encéfalo/genética , Dieta , Dopamina/metabolismo , Expressão Gênica , Hiperfagia/complicações , Masculino , Obesidade/metabolismo , RNA Mensageiro , Ratos , Ratos Wistar , Aumento de PesoRESUMO
Objective: Eating behavior is affected by psychological and neurocognitive factors. However, little is known about this relationship in anxious patients. Our aim was to investigate the associations between impulsivity, inhibitory control, energy-dense food consumption, and body mass index (BMI) in women with generalized anxiety disorder (GAD). Methods: In this cross-sectional study, 51 adult females with GAD answered the Barratt Impulsiveness Scale (BIS-11) and participated in a go/no-go task using food images. Anthropometric measurements were evaluated. A food frequency questionnaire and a snack test were used to study eating behavior. Pearson correlation and multiple linear regression were performed to analyze the variables of interest, adjusted by age. Results: Impulsivity predicted intake of sugar (p = 0.016, 95%CI 0.67-6.05), total fat (p = 0.007, 95%CI 0.62-3.71), and saturated fat (p = 0.004, 95%CI 0.30-1.48). The snack test showed a positive correlation between presence of impulsivity and intake of biscuits (R = 0.296; p = 0.051). Response inhibition to food images in the go/no-go task paradigm did not predict BMI or food intake. Conclusion: Impulsivity was predictive of higher sugar and saturated fat intake in women diagnosed with GAD. Our findings add to the literature regarding the association between neuropsychological factors and food consumption in this specific population.
Assuntos
Humanos , Feminino , Adulto , Transtornos de Ansiedade/complicações , Ingestão de Alimentos/psicologia , Comportamento Alimentar/psicologia , Comportamento Impulsivo , Transtornos de Ansiedade/psicologia , Índice de Massa Corporal , Estudos Transversais , Inquéritos e QuestionáriosRESUMO
Pregnant individuals who overeat are more likely to predispose their fetus to the development of metabolic disorders in adulthood. Physical training is a prevention and treatment interventional strategy that could treat these disorders, since it improves metabolism and body composition. This study assessed the protective effect of physical exercise against possible metabolic changes in generations F1 and F2, whose mothers were subjected to a high-sugar/high-fat (HS/HF) diet. Wistar rats belonging to generation F0 were distributed into four groups (n = 10): sedentary control (CSed), exercised control (CExe), sedentary HS/HF diet (DHSed) and exercised HS/HF diet (DHExe). From 21 to 120 days of age, maintained during pregnancy and lactation period, CSed/CExe animals received standard feed and DHSed/DHExe animals a HS/HF diet. Animals from the CExe/DHExe underwent physical training from 21 to 120 days of age. Male and female F1 and F2 received a normocaloric feed and did not perform any physical training, categorized into four groups (n = 10) according to the maternal group to which they belonged to. An increase in body weight, adiposity and glucose, and a change in lipid profile in F0 were observed, while exercise reduced the biochemical parameters comparing DHSed with DHExe. Maternal exercise had an effect on future generations, reducing adiposity, glucose and triglyceride concentrations, and preventing deleterious effects on glucose tolerance. Maternal overeating increased health risks both for mother and offspring, demonstrating that an HS/HF diet intake promotes metabolic alterations in the offspring. Importantly, the physical training performed by F0 proved to be protective against such effects.
Assuntos
Dieta Hiperlipídica/efeitos adversos , Açúcares da Dieta/efeitos adversos , Exposição Materna/efeitos adversos , Condicionamento Físico Animal/fisiologia , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Adiposidade/fisiologia , Animais , Comportamento Animal/fisiologia , Glicemia/análise , Glicemia/metabolismo , Peso Corporal/fisiologia , Modelos Animais de Doenças , Feminino , Humanos , Masculino , Fenômenos Fisiológicos da Nutrição Materna , Gravidez , Efeitos Tardios da Exposição Pré-Natal/sangue , Efeitos Tardios da Exposição Pré-Natal/metabolismo , Efeitos Tardios da Exposição Pré-Natal/fisiopatologia , Fatores de Proteção , Ratos , Fatores de Risco , Comportamento SedentárioRESUMO
This publication looks at the involvement of physical activity in the church. It gives recommendations and benefits, church base physical activity programme, physical activity messages from church, attitude of the movements, endorsements messages from pastors and scriptures on physical activity and overeating
Assuntos
Exercício Físico , Saúde Pública , Bíblia , Doenças não TransmissíveisRESUMO
There has been polarizing debate on addictive-like eating in recent years. To move toward valid definition and measurement of this construct, qualitative research describing individuals' experiences is needed. The present study explored how Brazilian men and women define and experience addictive-like eating. Interviews were conducted with 7 men and 8 women (Mageâ¯=â¯46.6 years, MBMIâ¯=â¯35.43â¯kg/m2) seeking treatment for addictive-like eating. Thematic analysis of interviews identified three saturated, overarching themes describing participants' conceptualizations of the (1) characteristics, (2) causal factors, and (3) consequences of addictive-like eating. Lack of control was a key characteristic of addictive-like eating described by all participants. A causal factor which most participants described was emotional eating. Consequences included emotional, interpersonal, occupational, and health-related impairments which appeared primarily related to weight gain, rather than to the pattern of addictive-like eating itself. These results are largely consistent with those of previous qualitative studies. Importantly, the symptoms described by our participants and in previous qualitative studies may be inadequately captured by existing self-report questionnaires designed to assess addictive-like eating. To address this potential limitation, we provide recommendations for assessing the full range of possible addictive-like eating symptoms.
Assuntos
Dependência de Alimentos/psicologia , Adulto , Idoso , Brasil , Emoções , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde , Autocontrole , Meio SocialRESUMO
Resumen El trastorno por atracón es reconocido formalmente en el DSM-5 (APA, 2014) como trastorno de la conducta alimentaria y de ingestión de alimentos, siendo considerado el más frecuente en población obesa, e incrementando su presencia rápidamente frente al resto en población general. Su crecimiento de forma alarmante y por delante de la bulimia y la anorexia nerviosa, llevan a considerarlo un problema de salud de gran prevalencia a comienzos del siglo XXI. Esta revisión estudia su conceptualización, así como los tratamientos psicológicos más eficaces en cuanto a su abordaje terapéutico, teniendo presente en este sentido, que la perspectiva cognitivo-conductual parece ser la alternativa más completa e integradora, sobre la cual se cimenta su adecuado manejo. Un aspecto a destacar en esta revisión es la importancia que tiene en su origen, desarrollo y mantenimiento, la dificultad de un procesamiento emocional por parte del sujeto, que ya ha sido asociada a los trastornos de la conducta alimentaria y de ingestión de alimentos con anterioridad.
Abstract Binge eating disorder (BED), was formally recognized in the DSM-5 (APA, 2014) as an eating disorder, and considered the most common eating disorder among obese people, which embraces significant part of the whole population. Its dramatic raise above bulimia and anorexia nervosa, which are binge eating disorder alarming signals, made researchers in this field consider this health problem as extremely serious at the beginning of the XXI century. This review takes the issue of conceptualization as well as the most effective psychological treatments into consideration having in mind that the cognitive-behavioral approach seems to be the most complete and comprehensive choice which builds up the basis for adequate treatment. The most serious difficulty to be highlighted in this review is the origin, development and maintenance of reluctance patients' within the emotional processing, which has been associated to binge eating disorder previously.
RESUMO
BACKGROUND/OBJECTIVES: While most "fetal programming" area focused on metabolic disease, intrauterine growth restriction (IUGR) is also associated with a preference for less healthy food. Post-natal factors such as strained maternal-child interactions are equally related to obesogenic eating behaviors. We investigated if IUGR and the quality of the mother/child relationship affect emotional overeating in children. SUBJECTS/METHODS: Participants were 196 children from a prospective birth cohort (the MAVAN project). As part of the protocol at 4 years of age, mothers completed the Children Eating Behavior Questionnaire (CEBQ) and mother-child interactions were scored during a structured task. A GLM adjusted for BMI examined the interaction between the "Atmosphere" score (ATM) task, sex and IUGR on the emotional over-eating domain of the CEBQ. RESULTS: There was a significant interaction of BWR vs. sex vs. ATM (P = .02), with no effects of IUGR, sex or ATM. The model was significant for girls with low ATM scores (B = -2.035, P = .014), but not for girls with high (P = 0.94) or boys with high (P = .27) or low (P = .19) ATM scores. Only in IUGR girls, 48 months emotional over-eating correlated with BMI at that age (r = 0.560, P = 0.013) and predicted BMI in the subsequent years (r = 0.654, P = 0.006 at 60 months and r = 0.750, P = 0.005 at 72 months). CONCLUSIONS: IUGR and exposure to a negative emotional atmosphere during maternal-child interactions predicted emotional overeating in girls but not in boys. The quality of mother-infant interaction may be an important target for interventions to prevent emotional overeating and overweight in early development, particularly in girls with a history of IUGR.