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Arthritis Research & Therapy

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

https://doi.org/10.1186/ar2546

Published: 12 November 2008

The original article was 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, Umeå, Sweden
(2)
Department of Rheumatology, Umeå University Hospital, Umeå, Sweden

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 ArticlePubMedGoogle Scholar

Copyright

© BioMed Central Ltd 2008

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