TY - JOUR
T1 - Low mannose-binding lectin (MBL) levels in neonates with pneumonia and sepsis
AU - Frakking, F. N.J.
AU - Brouwer, N.
AU - Van Eijkelenburg, N. K.A.
AU - Merkus, M. P.
AU - Kuijpers, T. W.
AU - Offringa, M.
AU - Dolman, K. M.
PY - 2007/11
Y1 - 2007/11
N2 - We investigated whether deficiency of mannose-binding lectin (MBL), a component of innate immunity, is associated with neonatal pneumonia and sepsis during the first 72 h, i.e. early onset, and during the first month after birth. In 88 neonatal intensive care patients (71 premature), MBL2 genotype and MBL plasma levels at birth were determined prospectively by Taqman analysis and enzyme-linked immunosorbent assay, respectively. Thirty-five neonates (40%) had low, i.e. ≤ 0.7 μg/ml, MBL plasma levels at birth. Median (interquartile range) MBL plasma levels in 32 no early-onset sepsis (EOS) cases, 44 possible EOS cases and 11 EOS cases were 1.57 (0.57-2.67) μg/ml, 1.05 (0.41-1.70) μg/ml and 0.20 (0.10-0.77) μg/ml, respectively (P < 0.01). During the first month, 28 neonates (32%) had no infection, 49 (55%) had suspected infection, five (6%) had pneumonia and six (7%) had culture-proven sepsis. Low MBL levels at birth were associated both with an increased risk of developing pneumonia (OR: 12.0; 95% CI: 1.1-126.1; P = 0.04) and culture-proven sepsis (OR: 15.0; 95% CI: 1.5-151.3; P = 0.02). These results were confirmed by genetic analysis of MBL deficiency. Low MBL levels at birth are associated with an increased risk of early-onset sepsis, culture-proven sepsis and pneumonia during the first month of life.
AB - We investigated whether deficiency of mannose-binding lectin (MBL), a component of innate immunity, is associated with neonatal pneumonia and sepsis during the first 72 h, i.e. early onset, and during the first month after birth. In 88 neonatal intensive care patients (71 premature), MBL2 genotype and MBL plasma levels at birth were determined prospectively by Taqman analysis and enzyme-linked immunosorbent assay, respectively. Thirty-five neonates (40%) had low, i.e. ≤ 0.7 μg/ml, MBL plasma levels at birth. Median (interquartile range) MBL plasma levels in 32 no early-onset sepsis (EOS) cases, 44 possible EOS cases and 11 EOS cases were 1.57 (0.57-2.67) μg/ml, 1.05 (0.41-1.70) μg/ml and 0.20 (0.10-0.77) μg/ml, respectively (P < 0.01). During the first month, 28 neonates (32%) had no infection, 49 (55%) had suspected infection, five (6%) had pneumonia and six (7%) had culture-proven sepsis. Low MBL levels at birth were associated both with an increased risk of developing pneumonia (OR: 12.0; 95% CI: 1.1-126.1; P = 0.04) and culture-proven sepsis (OR: 15.0; 95% CI: 1.5-151.3; P = 0.02). These results were confirmed by genetic analysis of MBL deficiency. Low MBL levels at birth are associated with an increased risk of early-onset sepsis, culture-proven sepsis and pneumonia during the first month of life.
KW - Complement
KW - Innate immunity
KW - Mannose-binding lectin
KW - Neonate
KW - Sepsis
UR - http://www.scopus.com/inward/record.url?scp=35348933814&partnerID=8YFLogxK
U2 - 10.1111/j.1365-2249.2007.03479.x
DO - 10.1111/j.1365-2249.2007.03479.x
M3 - Article
C2 - 17711490
AN - SCOPUS:35348933814
SN - 0009-9104
VL - 150
SP - 255
EP - 262
JO - Clinical and Experimental Immunology
JF - Clinical and Experimental Immunology
IS - 2
ER -