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Differences in Associations between Visceral Fat Accumulation and Obstructive Sleep Apnea by Sex / 内臓脂肪量と閉塞型睡眠時無呼吸との関連にみられる男女差Harada, Yuka 23 May 2014 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(医学) / 甲第18450号 / 医博第3905号 / 新制||医||1004(附属図書館) / 31328 / 京都大学大学院医学研究科医学専攻 / (主査)教授 伊達 洋至, 教授 稲垣 暢也, 教授 森田 智視 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM
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Association Between Endothelial Function (Assessed on Reactive Hyperemia Peripheral Arterial Tonometry) and Obstructive Sleep Apnea, Visceral Fat Accumulation, and Serum Adiponectin / Reactive hyperemia peripheral arterial tonometryによって評価した血管内皮機能と閉塞性睡眠時無呼吸、内臓脂肪蓄積および血清アディポネクチンとの関連Azuma, Masanori 25 January 2016 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(医学) / 甲第19400号 / 医博第4051号 / 新制||医||1012(附属図書館) / 32425 / 京都大学大学院医学研究科医学専攻 / (主査)教授 横出 正之, 教授 福原 俊一, 教授 山下 潤 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM
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Role of Vitamin A Metabolism in Visceral ObesityYasmeen, Rumana 19 December 2012 (has links)
No description available.
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Impacto da suplementação materna com extrato aquoso de canela durante a lactação sobre a homeostase energética da prole adultaOliveira Neto, Jessika Geisebel 05 June 2017 (has links)
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Dissertação_mestrado-versão_final-_Jessika_Geisebel.pdf: 1194239 bytes, checksum: b59363ae595a444e379ef361c1b537c2 (MD5) / A programação metabólica ocorre quando insultos promovem alterações adaptativas nos períodos críticos do desenvolvimento e alteram as funções endócrino-metabólicas ao longa da vida. Estudos com alimentos conhecidos por trazerem benefícios à saúde além do valor nutritivo, mostraram que seu consumo por mães gestantes e/ou lactantes podem vir a ter desfechos negativos para a prole. Já está bem caracterizado que a ingestão de canela gera benefícios para homeostase energética. Entretanto, dados prévios obtidos pelo grupo mostraram que a suplementação com extrato aquoso de canela (400mg/kg peso corporal/dia) durante a lactação leva ao desenvolvimento de obesidade visceral, hiperleptinemia, hiperinsulinemia, associada a normoglicemia, na prole adulta aos 180 dias de vida. Com o objetivo de melhor compreender as alterações endócrino-metabólicas deste modelo, avaliamos a expressão proteica no fígado e músculo esquelético por Western blot, além de avaliarmos o conteúdo de triglicerídeo e glicogênio hepáticos através de ensaios colorimétricos. No fígado, vimos uma diminuição na fosforilação do IR, entretanto, observamos aumento na fosforilação do IRS1 e AKT. Quando avaliamos a sinalização de leptina, não observamos alteração na expressão do ObRB e SOCS3, no entanto, vimos um aumento na expressão da JAK2 e na fosforilação da STAT3, sugerindo que a ativação do IRS1/AKT possa decorrer da maior ativação da via da leptina. Apesar de não observarmos alteração da via gliconeogênica (PEPCK, G6Pase, GLUT2), vimos que a programação leva a um menor conteúdo de glicogênio hepático acompanhado por maior ativação da GSK3β. Observamos aumento do conteúdo de triglicerídeo hepático acompanhado por expressão normal do PPARα e uma interessante redução da expressão do SREBP1c. Concluímos que a programação por canela na lactação altera as principais ações da insulina no fígado, levando a uma menor síntese de glicogênio e acúmulo de gordura neste tecido, sem gerar alterações significativas no músculo esquelético. / Metabolic programming occurs when insults promotes adaptive changes in critic periods of development that alters the endocrine-metabolic functions in the offspring in medium and long terms. Studies with foods known to promote health benefits in addition to the nutritive value, shows that its consumption by pregnant and/or lactating females could induce negative outcomes to the offspring. It is well characterized that cinnamon intake promotes benefits to energy homeostasis. However, previous data obtained by our research group showed that supplementation with cinnamon water extract (400mg/kg body weight/day) during lactation leads to the development of visceral obesity, hyperleptinemia, hyperinsulinemia, associated to normoglycemia, in the adult offspring with 180 days old. To increase the knowledge about the endocrine-metabolic changes in this model, we evaluated the protein expression in liver and skeletal muscle by Western blot, and evaluated the hepatic content of triacylglycerol and glycogen using colorimetric assays. In liver, we observed a reduced IR phosphorylation; however, we observed increased phosphorylation of IRS1 and AKT. Concerning leptin signaling pathway, we did not observed changes in the ObRB and SOCS3 expression, but we observed an increased expression of JAK2 and phosphorylation of STAT3, suggesting that the activation of IRS1/AKT could be resulted by the increased activation of leptin signaling pathway. Although we observed no changes in the gluconeogenic pathway (PEPCK, G6Pase, GLUT2), we observed that the programmed group exhibit a lower hepatic glycogen content accompanied by increased activation of GSK3β. We observed increased hepatic triacylglycerol content accompanied by normal PPARα expression and an interesting reduction of SREBP1c expression. We conclude that the programming induced by cinnamon intake during lactation alters the main actions of insulin in liver; leading to lower glycogen synthesis and accumulation of fat in this tissue, without promote important changes in skeletal muscle.
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Obesity, Adiposity, and Satiety in mouse models of Smith-Magenis Syndrome and dup(17)(p11.2) SyndromeBurns, Brooke 24 April 2009 (has links)
Smith-Magenis syndrome (SMS) is a complex disorder caused by haploinsufficiency of RAI1 and characterized by sleep disturbances, behavioral abnormalities, mental retardation, and obesity in teens and adults. Rai1+/- mice are obese after 20 weeks. Dup(17)(p11.2) syndrome is a complex disorder associated with overexpression of RAI1. A transgenic mouse model of dup(17)(p11.2) syndrome overexpresses Rai1 and results in a mouse that is growth delayed. In order to characterize the obese phenotypes of mouse models of SMS and the role of RAI1 in obesity, daily food intake and serum levels of insulin, glucose, PPY, and leptin were measured; adiposity was studied by characterizing fat deposition; and gene expression was studied in the hypothalamus. These studies show that Rai1+/- mice are hyperphagic, consume more during the inactive light phase, and have altered satiety genes in the hypothalamus. Adiposity studies have shown WT females have a higher body fat content and visceral fat proportion than males, but Rai1-Tg and Rai1+/- females have similar fat deposition patterns as WT males. Hypothalamic gene expression studies show that many genes and pathways are affected by Rai1 and Rai1 dosage, including many genes associated with obesity and satiety.
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Inter-relação de obesidade visceral, glúteo-femoral e doença periodontal em mulheres /Jacomossi, Angelo César Fernandes January 2019 (has links)
Orientador: Doris Hissako Sumida / Resumo: Este trabalho teve como objetivo avaliar a gravidade da Doença Periodontal (DP) em mulheres obesas, vivendo em uma uma mesma comunidade, com semelhantes hábitos e condições de vida e com amplo acesso à assistência médico-odontológica, considerando a distribuição de gordura corporal. Foram avaliadas 39 mulheres, 15 com obesidade visceral (OBV), 10 com obesidade glúteo-femoral (OBF) e 14 com peso normal (CON). Todas foram submetidas à avaliação periodontal e classificadas de acordo com o Índice Periodontal Comunitário (IPC). Medidas antropométricas e bioimpedanciometria foram realizadas para discriminar a regionalização da gordura corporal. Uma coleta de amostra sanguínea foi feita para dosagem glicemia de jejum e insulinemia a fim de se obter o cálculo do HOMA-IR (Homeostatic Model Assessment for Insulin Resistance) e quantificação laboratorial da resistência à insulina. Os três grupos foram comparados em relação à gravidade da DP. Foram realizadas análises de correlação entre o IPC e os seguintes parâmetros: Índice de Massa Corporal (IMC), circunferência da cintura (C), relação enter a circunferência da cintura/ e a circunferência do quadril (C/Q), percentual de gordura visceral em relação ao peso corporal (%GV) e HOMA -IR. O escore média do IPC foi significativamente maior (p = 0,0045) no grupo OBV do que no grupo CON. Não houve diferença no grupo OBF quando comparado ao grupo OBV e ao grupo CON. Houve correlação positivamente significativa entre o escore IPC (p = 0,0173), C... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: This study aim to evaluate the severity of Periodontal Disease (PD) in obese women from the same community, sharing the same life habits and life conditions and with broad access to dental-medical assistance, considering the distribution of body fat. 39 women were evaluated, 15 with visceral obesity (VOB), 10 with gluteofemoral obesity (FOB) and 14 with normal weight (CON). All were submitted to periodontal evaluation and scored according to the Community Periodontal Index (CPI). Anthropometric measurements and bioimpedanciometry were performed in order to discriminate the regionalization of body fat. A collect of blood sample was made for fasting dosage of glycemia and insulinemia for calculation of HOMA-IR determination and laboratory quantification of insulin resistance. The three groups were compared in relation to the severity of PD. Correlation analyzes were performed between CPI and the following parameters: Body Mass Index (BMI), waist circumference (WC), waist/hip circumference ratio (W/H), percentage of visceral fat in relation to body weight (%GV) and HOMA-IR. The mean CPI score was significantly higher (p = 0.0045) in the VOB group than in the CON group. There was no difference in the FOB group when compared to the VOB group and the CON group. There was a significant positive correlation between the CPI score (p = 0.0173), W/H (p = 0.0004), and WC (p = 0.0082). It was possible to conclude that the present study agrees with previous literature data associating Obes... (Complete abstract click electronic access below) / Mestre
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