名古屋大学 · 医学
Hiroaki Oda教授の研究室では、体内時計(サーカディアンリズム)と代謝疾患の関連を解明するため、食事のタイミングが肝臓の生物時計および脂質代謝に与える影響を、動物モデルを用いて系統的に研究しています。特に、朝食を抜くような不規則な食事パターンが脂肪肝や肥満を引き起こすメカニズムに注目し、食事のリズムが体の内部時計をどのように制御するかを分子レベルで解明しています。また、慢性腎疾患や透析患者における脂質異常との関連についても、臨床的・実験的両面からアプローチしています。
Figures are computed from collected data and may differ slightly.
The circadian clock is closely related to human health, such as metabolic syndrome and cardiovascular disease. Our previous study revealed that irregular feeding induced abnormal lipid metabolism with disruption of the hepatic circadian clock. We hypothesized that breakfast skipping induces lipid abnormalities, such as adiposity, by altering the hepatic circadian oscillation of clock and lipid metabolism-related genes. Here, we established a delayed first active-phase meal (DFAM) protocol as a b
fibrate, hypercholesterolemia, hypertriglyceridemia, 3-hydroxy-3-methylglutaryl coenzyme A reductase extent the putative risk factors listed above interact with lipid abnormalities in patients with uraemia. inhibitor Finally, no data are available to address the important issue of whether risk factor modification will improve the ESRD patient survival.
Well-regulated eating habits are said to be important for health. A major breakthrough was the discovery of the negative regulatory feedback for transcription via the binding of Clock/Bmal1 to E-box, which forms the basis of biological clocks. Well-regulated eating habits normalize the liver clock gene, the rhythm of CYP7A1 gene, and blood cholesterol levels through insulin secretion. Moreover, well-regulated eating habits actively contribute to better lipid metabolism such as obesity, even if a
Metabolic syndrome has become a global health challenge and was recently reported to be positively correlated with increased sucrose consumption. Mechanistic analyses of excess sucrose-induced progression of metabolic syndrome have been focused mainly on abnormal hepatic lipogenesis, and the exact contribution of excess sucrose to metabolic disorders remains controversial. Considering that carbohydrate and lipid metabolisms exhibit clear circadian rhythms, here we investigated the possible contr
Recently, involvement of remnant-like particle cholesterol (RLP-C) in atherosclerosis was reported, but this parameter has not been adequately investigated in hemodialysis (HD) patients. The present study investigated the relationship between the RLP-C level and total cholesterol (TC), triglycerides (TG), low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C), lipid peroxides (malone dialdehyde, MDA), apolipoprotein (Apo) A-I, and ApoB. In addition, the fractio
The etiology of metabolic syndrome involves several complicated factors. One of the main factors contributing to metabolic syndrome has been proposed to be excessive intake of sucrose, which disturbs hepatic lipid metabolism, resulting in fatty liver. However, the mechanism by which sucrose induces fatty liver remains to be elucidated. Considering feeding behavior important for metabolism, we investigated whether time-restricted feeding of high sucrose diet (HSD), only in the active phase (the d
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