• Pediatric research · Oct 2011

    Urinary neutrophil gelatinase-associated lipocalin at birth predicts early renal function in very low birth weight infants.

    • Gaetano La Manna, Silvia Galletti, Irene Capelli, Silvia Vandini, Katia Nisi, Giulia Aquilano, Rita Mancini, Elisa Carretta, Giovanni Montini, Giacomo Faldella, and Sergio Stefoni.
    • Department of Internal Medicine, Aging and Renal Disease, St. Orsola Hospital, University of Bologna, 40138 Bologna, Italy. gaetano.lamanna@unibo.it
    • Pediatr. Res. 2011 Oct 1; 70 (4): 379-83.

    AbstractPreterm infants are exposed to conditions that can impair renal function. We evaluated the ability of serum and urinary neutrophil gelatinase-associated lipocalin (sNGAL and uNGAL) to predict renal function in the first weeks of life. From September 2008 to July 2009, infants weighing ≤1500 g at birth with no major congenital anomalies or sepsis were eligible. We measured sNGAL and uNGAL levels at birth. To evaluate renal function, we determined changes in serum creatinine (sCreat) and estimated GFR (eGFR) from birth to d 21. Forty neonates (mean GA, 27 ± 2 wk) completed the study. Renal function improved in 32 of 40 (80%) infants (normal renal function, NRF group) (sCreat, from 0.97 ± 0.2 to 0.53 ± 0.13 mg/dL; eGFR, from 15.3 ± 4.1 to 28.6 ± 7.9 mL/min), whereas renal function worsened in 8 of 40 (20%) infants (impaired renal function, IRF group) (sCreat, from 0.71 ± 0.27 to 0.98 ± 0.43 mg/dL; eGFR from 23 ± 14.7 to 16.4 ± 9.1 mL/min). The uNGAL/urinary creatinine (uCreat) ratio at birth was higher in the IRF group (31.05 ng/mg) than the NRF group (6.0 ng/mg), and uNGAL was significantly higher in IRF group, detecting IRF with a cutoff of 100 ng/mL. uNGAL levels at birth may have a predictive role in very LBW (VLBW) infants.

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