足月儿和早产儿的钠稳态。II. 胃肠道方面
Sodium homeostasis in term and preterm neonates. II. Gastrointestinal aspects.
作者信息
Al-Dahhan J, Haycock G B, Chantler C, Stimmler L
出版信息
Arch Dis Child. 1983 May;58(5):343-5. doi: 10.1136/adc.58.5.343.
Abstract
Eighty five 24 hour balance studies were performed on 70 healthy newborn infants of gestational age 27-40 weeks; dietary intake and stool losses of sodium were measured. There was a relation between gastrointestinal sodium absorption and conceptional age (the sum of gestational and postnatal age), whether expressed as absolute stool sodium losses or as the ratio of stool sodium to dietary sodium intake. The stool K:Na ratio rose appreciably with maturation, although stool content of potassium was not greatly increased. These findings suggest that intestinal sodium absorption is inefficient in immature babies and that the degree of malabsorption is inversely related to conceptional age.
摘要
对70名孕龄为27 - 40周的健康新生儿进行了85次24小时平衡研究；测量了钠的饮食摄入量和粪便丢失量。胃肠道钠吸收与孕龄（孕周与出生后年龄之和）之间存在关联，无论是以粪便钠的绝对丢失量还是以粪便钠与饮食钠摄入量的比值来表示。尽管粪便中的钾含量没有大幅增加，但粪便钾钠比随着成熟度显著上升。这些发现表明，未成熟婴儿的肠道钠吸收效率低下，且吸收不良的程度与孕龄呈负相关。
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