RGD Reference Report - Fragment Bb: evidence for activation of the alternative pathway of the complement system in pregnant women with acute pyelonephritis. - Rat Genome Database

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Fragment Bb: evidence for activation of the alternative pathway of the complement system in pregnant women with acute pyelonephritis.

Authors: Soto, E  Romero, R  Vaisbuch, E  Erez, O  Mazaki-Tovi, S  Kusanovic, JP  Dong, Z  Chaiworapongsa, T  Yeo, L  Mittal, P  Hassan, SS 
Citation: Soto E, etal., J Matern Fetal Neonatal Med. 2010 Oct;23(10):1085-90. doi: 10.3109/14767051003649870.
RGD ID: 7242756
Pubmed: PMID:20218820   (View Abstract at PubMed)
PMCID: PMC2941983   (View Article at PubMed Central)
DOI: DOI:10.3109/14767051003649870   (Journal Full-text)

OBJECTIVE: Pyelonephritis during pregnancy is associated with a more severe course than in the non-pregnant state. This has been attributed to an increased susceptibility of pregnant women to microbial products. The complement system is part of innate immunity and its alternative pathway is activated mainly by microorganisms. The purpose of this study was to determine if activation of the alternative pathway of the complement system (determined by maternal fragment Bb concentrations) occurs in pregnant women with acute pyelonephritis. METHODS: This cross-sectional study included the following groups: (1) normal pregnant women (n=62) and (2) pregnant women with pyelonephritis (n=38). Maternal plasma fragment Bb concentrations were determined by ELISA. Non-parametric statistics were used for analyses. RESULTS: (1) Pregnant women with pyelonephritis had a higher median plasma concentration of fragment Bb than those with a normal pregnancy (1.3 mug/ml, IQR: 1.1-1.9 vs. 0.8 mug/ml, IQR: 0.7-0.9; p<0.001); (2) No significant differences were observed in the median maternal plasma concentration of fragment Bb between pregnant women with pyelonephritis who had a positive blood culture and those with a negative blood culture (1.4 mug/ml, IQR: 1.1-3.5 vs. 1.3 mug/ml, IQR: 1.1-1.9; p=0.2). CONCLUSIONS: Pregnant women with acute pyelonephritis have evidence of activation of the alternative pathway of the complement system, regardless of the presence or absence of a positive blood culture.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
CFBHumanpyelonephritis  IEP associated with pregnancy complications and protein:increased activity:plasmaRGD 
CfbRatpyelonephritis  ISOCFB (Homo sapiens)associated with pregnancy complications and protein:increased activity:plasmaRGD 
CfbMousepyelonephritis  ISOCFB (Homo sapiens)associated with pregnancy complications and protein:increased activity:plasmaRGD 

Objects Annotated

Genes (Rattus norvegicus)
Cfb  (complement factor B)

Genes (Mus musculus)
Cfb  (complement factor B)

Genes (Homo sapiens)
CFB  (complement factor B)


Additional Information