| Project/Area Number |
17390303
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Pediatrics
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
OHTA Takao University of the Ryukyus, Department of Pediatrics, Professor (70185271)
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| Co-Investigator(Kenkyū-buntansha) |
SAKU Keijiro Fukuoka University, Department of Internal, Professor (40183371)
AWATA Hisataka University of the Ryukyus, Department of Clinical Laboratory Sciences, Professor (00325862)
SHIMABUKURO Michio University of the Ryukyus, Department of Internal Medicine, Associate Professor (60271144)
YOSHIDA Tomohide University of the Rykyus, Department of Pediatrics, Assistant Professor (20363682)
SHIMABURURO Tadao University of the Rykyus, Department of Pediatrics, Assistant Professor (20336382)
砂川 信 琉球大学, 医学部, 助手 (60332904)
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| Project Period (FY) |
2005 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥15,680,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥780,000)
Fiscal Year 2007: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2006: ¥4,400,000 (Direct Cost: ¥4,400,000)
Fiscal Year 2005: ¥7,900,000 (Direct Cost: ¥7,900,000)
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| Keywords | life-style related disease in children / Dyslipidemia / atherosclerosis / metabolic syndrome / adipocytokine / FMD / IMT / インスリン抵抗性 / 生下時体重 / 小児肥満 / アディポネクチン / CRP |
|---|
| Research Abstract |
Many studies have shown that life-style related disorders are risk factors for atherosclerotic coronary heart diseases (ACHD). The pathological arterial sclerosis lesion is present in children, and it is very likely that the development of atherosclerotic lesion is accelerated with the presence of life-style related diseases even in children. Thus, in the present study, we studied the relationship between body weight and serum concentrations of adipocytokines in school children and neonates. In schoolchildren, all adipocytokines evaluated (adiponectin, leptin, Il-6, IL-18, IL-1β) were positively correlated with body weight except for adiponectin. Adiponectin was inversely correlated with body weight These findings were similar to those in adults, thereby suggesting that overweight was a risk factor for ACHD even in children. Differed from school children, serum concentrations of adiponectin were positively associated with body weight in preterm and term infants. To date, some roles of
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adipocytokines such as IL-6 and TNF-α have been highlighted in the inverse correlation between adiponectin and body weight in adults. It has been shown that IL-6 and TNF-α reduce the secretion of adiponectin from adipocytes. Some kinds of inflammation in adipose tissue might contribute to the inverse correlation between adiponectin and body weight. If inflammation or levels of pro-inflammatory adipocytokines were not elevated in adipose tissue, adiponectin secretion from adipocytes might not be reduced. Since the increase in the body weight of the fetus during late pregnancy is a physiological development, it is reasonable to consider that an increase in adipose tissue at this stage might not accompany the inflammation in adipose tissue. Furthermore, the ratio of high-molecular adiponectin (active adiponectin) to total adiponectin was significantly smaller in preterm infant that that in term infant. As adiponectin was secreted from adipocytes, our findings suggest that development of adipose tissue in preterm infants might be different from term infant. This may explain the relation of low birth weight to future development of ACHD. Less
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