Open Access

Erratum to: Levels of gastrin-releasing peptide and substance P in synovial fluid and serum correlate with levels of cytokines in rheumatoid arthritis

  • Ola Grimsholm1Email author,
  • Solbritt Rantapää-Dahlqvist2 and
  • Sture Forsgren1
Arthritis Research & Therapy200810:410

DOI: 10.1186/ar2546

Published: 12 November 2008

The Research article to this article has been published in Arthritis Research & Therapy 2005 7:R416

After publication of our recent article [1], we noticed an error in Table 4, 'Factor analysis on STNFR1 and neuropeptides in serum'.

The value for variable BDNF (0.829; Factor 2) is missing.

The correct table and legend is given here as Table 1 (a corrected version of Table 4 [1]).
Table 1

Factor analysis on sTNFR1 and neuropeptides in serum

Variable

Factor

 

1

2

3

sTNFR1

 

0.323

0.827

ESR

  

0.897

BN/GRP

0.324

0.778

 

SP

0.907

  

VIP

0.934

  

CGRP

0.63

0.575

 

NPY

0.925

  

BDNF

 

0.829

 

Principal-component analysis for sTNFR1, five neuropeptides and the neurotrophin BDNF in serum from 21 patients with long-standing RA, and for the ESR. BN/GRP, bombesin/gastrin-releasing peptide; CGRP, calcitonin-gene-related peptide; ESR, erythrocyte sedimentation rate; NPY, neuropeptide Y; RA, rheumatoid arthritis; SP, substance P; sTNFR1, soluble tumour necrosis factor receptor 1; VIP, vasoactive intestinal peptide.

Notes

Declarations

Authors’ Affiliations

(1)
Department of Integrative Medical Biology, Section for Anatomy, Umeå University
(2)
Department of Rheumatology, Umeå University Hospital

References

  1. Grimsholm O, Rantapää-Dahlqvist S, Forsgren S: Levels of gastrin-releasing peptide and substance P in synovial fluid and serum correlate with levels of cytokines in rheumatoid arthritis. Arthritis Res Ther. 2005, 7: R416-R426. 10.1186/ar1503.PubMed CentralView ArticlePubMed

Copyright

© BioMed Central Ltd 2008

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