Thermodynamics of aqueous bile salt solutions: Heat capacity, enthalpy and entropy of dilution

1981 ◽  
Vol 10 (11) ◽  
pp. 785-801 ◽  
Author(s):  
N. Rajagopalan ◽  
M. Vadnere ◽  
S. Lindenbaum
2014 ◽  
Vol 575 ◽  
pp. 167-172 ◽  
Author(s):  
Ondřej Jankovský ◽  
David Sedmidubský ◽  
Zdeněk Sofer ◽  
Jindřich Leitner ◽  
Květoslav Růžička ◽  
...  

Author(s):  
I. N. Ganiev ◽  
S. E. Otajonov ◽  
N. F. Ibrohimov ◽  
M. Mahmudov

In the heat «cooling» investigated the temperature dependence of the specific heat capacity and thermodynamic functions doped strontium alloy AK1М2 in the range 298,15—900 K. Mathematical models are obtained that describe the change in these properties of alloys in the temperature range 298.15—900 K, as well as on the concentration of the doping component. It was found that with increasing temperature, specific heat capacity, enthalpy and entropy alloys increase, and the concentration up to 0.5 wt.% of the alloying element decreases. Gibbs energy values have an inverse relationship, i.e., temperature — decreases the content of alloying component — is up to 0.5 wt.% growing.


1981 ◽  
Vol 241 (6) ◽  
pp. G469-G477 ◽  
Author(s):  
P. R. Kvietys ◽  
J. M. McLendon ◽  
D. N. Granger

In an autoperfused dog ileum preparation, artificial pressure, venous outflow pressure, blood flow, and arteriovenous oxygen difference were measured while bile and bile salt solutions, at physiological concentrations, were placed in the lumen. Intraluminal placement of endogenous bile, synthetic bile, or bile salt solutions increased ileal blood flow (99 +/- 10, 94 +/- 20, and 104 +/- 17%, respectively) and oxygen uptake (30 +/- 5, 36 +/- 9, and 28 +/- 5%, respectively). Endogenous bile pretreated with cholestyramine, a bile salt-sequestering resin, did not alter ileal blood flow, yet increased ileal oxygen uptake by 11 +/- 3%, a response similar to that observed while Tyrode's solution (the vehicle) was in the lumen. Intra-arterial infusion of bile salts increased ileal blood flow in a dose-dependent manner, while not significantly altering ileal oxygen uptake. The results of the present study indicate that bile salts play an important role in the functional (postprandial) hyperemia in the ileum by 1) directly dilating the ileal vasculature and 2) enhancing ileal metabolism during their active absorption.


1984 ◽  
Vol 37 (9) ◽  
pp. 1881 ◽  
Author(s):  
CJ O'Conner ◽  
RG Wallace

The reactivity of 4-nitrophenyl acetate has been examined in solutions of mono-, di-, and tri-hydroxy- cholanates and their taurine and glycine conjugates. The effect of cholate solutions on the stability of acetylsalicylic acid, phenyl salicylate and benzaldehyde diethyl acetal has also been determined. At the bile salt concentrations and in the pH range of the duodenum, bile salts do not significantly influence the stability of these compounds.


1991 ◽  
Vol 80 (4) ◽  
pp. 399-401 ◽  
Author(s):  
Jan H. de Smidt ◽  
Jaap C.A. Offringa ◽  
Daan J.A. Crommelin

1977 ◽  
Vol 64 (8) ◽  
pp. 572-576 ◽  
Author(s):  
I. R. Hardie ◽  
M. K. Green ◽  
W. Burnett ◽  
D. R. Walland ◽  
A. Hall-Brown

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