. Author manuscript; available in PMC: 2022 Jul 1.

Published in final edited form as: Curr Opin Nephrol Hypertens. 2021 Jul 1;30(4):404–410. doi: 10.1097/MNH.0000000000000719

Table 2.

Recent studies highlighting differences among techniques in estimating the proportion of sodium-dependent (transcellular) intestinal phosphorus uptake/absorption.

			Na+ dependent (transcellular), % of total
Species	Technique	[P] (mM)	Duodenum	Jejunum	Ileum	Ref
Rat (SD)	Everted gut sac	0.1	48	73	~0	(15)
Rat (SD)	Everted gut sac	10	48	53	~0	(15)
Rat (SD)	Ligated loop	0.1	~0	32	52	(15)
Rat (SD)	Ligated loop	10	~0	29	74	(15)
Rat (Han:SD)	Ligated loop	0.1	-	23–33	-	(10)
Rat (Cy)	Ligated loop	0.1	-	24–25	-	(10)
Rat (SD)	Oral gavage	0.5	~0			(35)

SD = Sprague Dawley; Cy = Cy model of CKD