Generation of a Novel Antibody Probe to the Apical Sodium-Dependent Bile Acid Transporter That Inhibits Ileal Bile Acid Absorption

2009 ◽  
Vol 6 (3) ◽  
pp. 1012-1018 ◽  
Author(s):  
M. Montagnani ◽  
A. Marangoni ◽  
A. Roda ◽  
F. Azzaroli ◽  
G. Mazzella ◽  
...  
Keyword(s):  
Bile Acid ◽  
Acid Absorption ◽  
Bile Acid Absorption ◽  
Sodium Dependent ◽  
Bile Acid Transporter ◽  
Acid Transporter

Bile acid absorption in isolated bile duct units (IBDU) is primarily due to the apical bile acid transporter

2000 ◽  
Vol 118 (4) ◽  
pp. A930
Author(s):  
Gianfranco Alpini ◽  
Shannon Glaser ◽  
Jo Lynne Phinizy ◽  
Alan F. Hofmann ◽  
Gene LeSage
Keyword(s):  
Bile Acid ◽  
Bile Duct ◽  
Acid Absorption ◽  
Bile Acid Absorption ◽  
Bile Acid Transporter ◽  
Acid Transporter

Induction of sodium-dependent bile acid transporter messenger RNA, protein, and activity in rat ileum by cholic acid

1997 ◽  
Vol 113 (5) ◽  
pp. 1599-1608 ◽  
Author(s):  
RT Stravitz ◽  
AJ Sanyal ◽  
WM Pandak ◽  
ZR Vlahcevic ◽  
JW Beets ◽  
...  
Keyword(s):  
Bile Acid ◽  
Cholic Acid ◽  
Messenger Rna ◽  
Rat Ileum ◽  
Sodium Dependent ◽  
Bile Acid Transporter ◽  
Acid Transporter

Comparative analysis of the ontogeny of a sodium-dependent bile acid transporter in rat kidney and ileum

1996 ◽  
Vol 271 (2) ◽  
pp. G377-G385 ◽  
Author(s):  
D. M. Christie ◽  
P. A. Dawson ◽  
S. Thevananther ◽  
B. L. Shneider
Keyword(s):  
Bile Acid ◽  
Rat Kidney ◽  
Membrane Vesicles ◽  
Mrna Levels ◽  
Sodium Dependent ◽  
Bile Acid Transporter ◽  
Old Rats ◽  
Acid Transporter ◽  
The Difference ◽  
And Function

An apical sodium-dependent bile acid transporter (ASBT) has recently been cloned and characterized in the rat ileum. Northern and Western blotting revealed both the ASBT mRNA and protein in rat kidney. The coding sequence of the kidney transcript was found to be identical to the previously cloned ileal ASBT. Indirect immunofluorescence studies localized the ASBT protein to the apical membrane of the renal proximal convoluted tubule. Kinetic analysis of sodium-dependent taurocholate uptake using membrane vesicles revealed a similar Michaelis-Menten constant value for taurocholate in the kidney and intestine. ASBT protein and function were present in the kidney but not the ileum from 7-day-old rats. On postnatal day 7, there was a sevenfold increase in ASBT steady-state mRNA levels in the kidney relative to the ileum, yet nuclear run-on assays revealed that the nascent transcription rates at this age were virtually the same. This suggests that the difference in the neonatal expression of the ASBT gene in the kidney and ileum may be in part due to differences in mRNA stability.

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