Figure 2
![See the text. (A) The experimental design. Uninephrectomy was performed to reduce the nephron number to one-half. (B) The double logarithmic plots between ePTFp and relative mRNA levels of osteopontin in the kidney (upper panel) and between ePTFp and serum FGF23 levels (lower panel) fitted with two-segmented linear regression with the slope of the first segment being zero. The threshold values of ePTFp and FGF23 were indicated. Modified from [12].](https://port.silverchair-cdn.com/port/content_public/journal/clinsci/135/15/10.1042_cs20201453/1/cs-2020-1453ci002.png?Expires=1716978727&Signature=cBXlNSIB9DvrLUIrNTURpU4FR2q~lW595hsUfZWmLV11UGfZ-KGa96w5NSTOtImU~vSUtv4crxvzwXXXyh8CdiS7XB1yhdpstZWx0YMK3IF4bcx3AEgPqhayZDZZsBI24or4r7zieGfJ~z1vQXwYm3WfXxZEvnTihGIouJwmvVKjHYDnXWXzCxc0B25rvIQTZ8at-gkBRWQuAAbwalxwVTxL~cb6R6ZnSFjwvM-sTxRp5npcFEvWZpnm94Y6E6bM~e0VNrTjHAN1nTWjtvK0MCIbQOrRzphdGazWVqSO8aStGit7nsRqVw4CYzMS7Wt7ZAYqyktzNYqgix0r2FSv~w__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Relation between ePTFp, FGF23, and renal tubular damage
See the text. (A) The experimental design. Uninephrectomy was performed to reduce the nephron number to one-half. (B) The double logarithmic plots between ePTFp and relative mRNA levels of osteopontin in the kidney (upper panel) and between ePTFp and serum FGF23 levels (lower panel) fitted with two-segmented linear regression with the slope of the first segment being zero. The threshold values of ePTFp and FGF23 were indicated. Modified from [12].