出生时及出生后最初几天的血浆儿茶酚胺和血浆肾素活性。

Plasma catecholamines and plasma renin activity at birth and during the first days of life.

Leonetti G, Bianchini C, Picotti G B, Cesura A, Caccamo L, Marini A

Clin Sci (Lond). 1980 Dec;59 Suppl 6:319s-321s. doi: 10.1042/cs059319s.

Abstract

Plasma noradrenaline and adrenaline concentrations and plasma renin activity were measured in 21 mothers at delivery and in their babies at birth (umbilical cord blood) and on days 1 and 5 of extrauterine life. 2. At birth plasma renin activity was significantly higher in the newborn than in mothers. Plasma renin activity increased further, but not significantly, on day 1 of life and significantly decreased on day 5. On day 5, 10 min head-up tilting caused no change in plasma renin activity. 3. Plasma noradrenaline in the newborn was higher than in mothers at birth and significantly decreased thereafter. Plasma adrenaline levels at birth were similar in the newborn and their mothers and significantly lower in the newborn in subsequent days. Tilting caused no increase in either plasma adrenaline or noradrenaline levels. 4. No correlation was found between plasma noradrenaline and adrenaline levels and plasma renin activity, or between noradrenaline, adrenaline or plasma renin activity and blood pressure.

摘要

对21位母亲分娩时及其婴儿出生时（脐带血）以及出生后第1天和第5天的血浆去甲肾上腺素、肾上腺素浓度和血浆肾素活性进行了测量。2. 出生时，新生儿的血浆肾素活性显著高于母亲。出生后第1天，血浆肾素活性进一步升高，但无显著差异，而在第5天显著下降。在第5天，头高位倾斜10分钟后血浆肾素活性未发生变化。3. 新生儿出生时的血浆去甲肾上腺素高于母亲，此后显著下降。新生儿出生时的血浆肾上腺素水平与母亲相似，在随后几天新生儿的血浆肾上腺素水平显著降低。倾斜未导致血浆肾上腺素或去甲肾上腺素水平升高。4. 未发现血浆去甲肾上腺素、肾上腺素水平与血浆肾素活性之间存在相关性，也未发现去甲肾上腺素、肾上腺素或血浆肾素活性与血压之间存在相关性。