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. 2007 Mar 23;364(1):64–72. doi: 10.1016/j.virol.2007.02.006

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Copyright © 2007 Elsevier Inc. All rights reserved.

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Fig. 4 — FCoV N gene, TNF-alpha, and fAPN mRNA expression levels in macrophages of FIP and SPF cats. Alveolar macrophages (2 × 10⁶ cells) were collected from FIP and SPF cats, and the FCoV N gene (A), TNF-alpha mRNA (B), and fAPN mRNA (C) were detected by RT–PCR. The FCoV N gene, TNF-alpha mRNA, and fAPN mRNA were quantitatively analyzed in terms of the relative density value to the mRNA for the housekeeping gene GAPDH. n = 7, N.D.: not detected.