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題名 | Difference of Plasma Leptin Levels in Venous and Arterial Cord Blood: Relation to Neonatal and Placental Weight=臍靜脈和臍動脈血中瘦素之差異:與新生兒及胎盤重量之關係 |
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作者姓名(中文) | 林國城; 許世正; 郭秋虎; 周峻義; | 書刊名 | The Kaohsiung Journal of Medical Sciences |
卷期 | 15:12 1999.12[民88.12] |
頁次 | 頁679-685 |
分類號 | 417.517 |
關鍵詞 | 臍靜脈; 臍動脈; 瘦素; 新生兒; 胎盤重量; Leptin; Umbilical vein; Umbilical artery; |
語文 | 英文(English) |
中文摘要 | 本研究測定42名新生兒血中臍帶靜脈與動脈之瘦素濃度,以探討臍帶血中瘦素對胎兒成長之生理學意義及其在懷孕時可能之產生來源。結果顯示臍帶靜脈與動脈血中之瘦素濃度,比母體血中之瘦素濃度來得有意義的低。且臍帶靜脈血中之瘦素濃度比臍帶動脈血中的濃度,顯示有意義的高。統計學上,臍帶靜脈血中之瘦素濃度與新生兒之脂肪指數及重量,形成有意義的正相關。而且,臍帶動脈血中之瘦素濃度與新生兒之脂肪指數亦呈正的相關關係。但胎盤重量與臍帶靜脈血中之瘦素濃度,並無意義的正相關。這些結果潁示,胎兒胎盤循環血中之瘦素,與胎兒之成長及新陳代謝有密切的關係,且胎盤是主要的來源之一,但與其重量無關。 |
英文摘要 | To investigate the physiological significance of umbilical plasma leptin in the fetal growth and its possible origin of production during pregnancy, plasma leptin concentrations in venous and arterial cord bloods were measured in 42 neonates (male=23, female=19, gestational age 36-41 weeks, birth weight 2600-4000g). Leptin concentrations in umbilical veins (5.65 ± 0.53 ng/mL, n=42) and umbilical arteries (0.56 ± 0.07 ng/mL, n=42) were significantly (P<0.001) lower than those in maternal peripheral veins (22.36 ± 1.06 ng/mL, n=42). Mean plasma leptin concentration (± SEM) in venous cord blood was significantly (P<0.001) higher than that of arterial cord blood. There was significantly positive correlation (r=0.447, P<0.01) between umbilical venous leptin levels and neonatal body mass index (BMI). A positive correlation (r=0.435, P<0.01) was also found between umbilical arterial leptin and neonate BML There was no positive correlation between umbilical leptin levels in venous cord blood and placental weight. We thus conclude that umbilical plasma leptin may play an essential role in the fetal growth and metabolism during pregnancy and placenta is one of the major sources of leptin production, but the level of leptin in umbilico-placental circulation is independent of the weight of placenta. |
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