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Table 4 Factor analysis on sTNFR1 and neuropeptides in serum

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

Variable

Factor

 

1

2

3

sTNFR1

 

0.323

0.827

BN/GRP

0.324

0.778

 

SP

0.907

  

VIP

0.934

  

CGRP

0.63

0.575

 

NPY

0.925

  

ESR

  

0.897

  1. Principal-component analysis for sTNFR1 and five neuropeptides 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.
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Arthritis Research & Therapy

ISSN: 1478-6362

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