Abstract:SummaryCalcium (Ca) and phosphorus (P) homeostasis were determined in 18 infants (birth weight, 2,810 ± 135 g; gestational age, 37.4 ± 0.5 weeks; mean ± SEM) who received high or low Ca and P content (Ca, P) parenteral nutrition (PN) with a fixed, low dose of vitamin D (25 IU/dl). Nine infants were randomized into low (standard) Ca, P (20 mg Ca and 15.5 mg P/dl) and nine into high Ca, P (60–80 mg Ca and 46.5–62 mg P/dl) PN, and then were studied for up to 6 weeks. The high Ca, P group had stable serum 1,25 dih… Show more
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