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Neonatal infection and passive acquisition of serum total IgG and reactive with "Streptococcus" B, anti-LPS of "Klebsiella spp" and "Pseudomonas spp" antibodies in twins.

Overview of attention for article published in Revista da Associação Médica Brasileira, June 2020
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Title
Neonatal infection and passive acquisition of serum total IgG and reactive with "Streptococcus" B, anti-LPS of "Klebsiella spp" and "Pseudomonas spp" antibodies in twins.
Published in
Revista da Associação Médica Brasileira, June 2020
DOI 10.1590/1806-9282.66.6.824
Pubmed ID
Authors

Yoshida, Renata de Araújo Monteiro, Palmeira, Patricia, Carneiro-Sampaio, Magda, Brizot, Maria de Lourdes, Carvalho, Werther Brunow de, Krebs, Vera Lúcia Jornada

Abstract

OBJECTIVE To describe the concentration of total and specific IgG antibodies anti-Streptococcus B, anti-lipopolysaccharide of Klebsiella spp, and anti-lipopolysaccharide of Pseudomonas spp in the umbilical cord of newborn(NB) twins and to analyze the association between neonatal infection and antibody concentration in the umbilical cord blood. METHODS A prospective cross-sectional study of a cohort of NB twins admitted during the period of 20 months. Patients with malformations and mothers with infection were excluded. Variables analyzed: gestational age(GA); birth weight(BW); antibody concentrations in umbilical cord blood; infection episodes. We used the paired Student t-test, Spearman correlation, and generalized estimation equation. RESULTS 57 pairs of twins were included, 4 excluded, making the sample of 110 newborns. GA=36±1.65weeks and BW=2304.8±460g(mean±SD). Antibody concentrations in twins(mean±SD): total IgG=835.71±190.73mg/dL, anti-StreptococcusB IgG=250.66±295.1 AU/mL, anti-lipopolysaccharide of Pseudomonas spp IgG=280.04±498.66 AU/mL and anti-lipopolysaccharide of Klebsiella spp IgG=504.75±933.93 AU/mL. There was a positive correlation between maternal antibody levels and those observed in newborns(p <0.005). The transplacental transfer of maternal total IgG and anti-LPS Pseudomonas IgG antibodies was significantly lower at NB GA <34 weeks(p <0.05). Five newborns were diagnosed with an infection. Infants with infection had significantly lower total IgG concentration(p <0.05). CONCLUSION This study showed a positive correlation between maternal and newborn antibodies levels. In infants younger than 34 weeks there is less transfer of total IgG and anti-LPS Pseudomonas IgG. The highest incidence of infection in the newborn group who had significantly lower total IgG serum antibodies reinforces the importance of anti-infectious protection afforded by passive immunity transferred from the mother.

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Mendeley readers

The data shown below were compiled from readership statistics for 7 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 7 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 1 14%
Researcher 1 14%
Student > Postgraduate 1 14%
Student > Master 1 14%
Unknown 3 43%
Readers by discipline Count As %
Medicine and Dentistry 2 29%
Immunology and Microbiology 1 14%
Unknown 4 57%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 July 2020.
All research outputs
#15,476,179
of 19,319,448 outputs
Outputs from Revista da Associação Médica Brasileira
#441
of 768 outputs
Outputs of similar age
#228,611
of 306,222 outputs
Outputs of similar age from Revista da Associação Médica Brasileira
#1
of 1 outputs
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So far Altmetric has tracked 768 research outputs from this source. They receive a mean Attention Score of 2.7. This one is in the 27th percentile – i.e., 27% of its peers scored the same or lower than it.
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