A model for renal-electrolyte regulation.

Physiological role of NBCe2 in the regulation of electrolyte transport in the distal nephron.

The electrogenic Na(+)-HCO3 (-) cotransporter 2 (NBCe2) is a newly discovered protein in the distal nephron. Our understanding is minimal regarding its physiological role in renal electrolyte transport. In this mini-review, we summarize the potential function of NBCe2 in the regulation of blood pressure, acid-base, and K(+) and Ca(2+) transport in the distal nephron.

A Simplified Perturbation Model for Prediction of Mean Ionic Activity Coefficient in Aqueous Electrolyte Solution

A Nonextensive Electrolyte UNIQUAC Model for Prediction of Mean Activity Coefficients of Binary Electrolyte Solutions

In this work, an electrolyte-UNIQUAC model was developed by replacement of Boltzmann weight binary interaction parameters by the nonextensive Tsallis weight. A summation of the long-range electrostatic term (Debye-Huckel equation) and a short-range interaction term were considered in the calculation of thermodynamic properties. A framework proposed by Chen and co-workers was employed for the de...

Prediction of Hydrate Formation for the Systems Containing Single and Mixed Electrolyte Solutions

In this work the effect of electrolytes on hydrate formation was investigated. To do so, a new model was used in predicting the hydrate formation conditions in presence of both single and mixed electrolyte solutions. The new model is based on the van der Waals - Platteeuw hydrate equation of state. In order to evaluate the values for the activity of water in electrolyte solutions t...

Positive and negative aspects of cooperative action of angiotensin II and vasopressin in the kidney

In many instances renin-angiotensin system (RAS) and vasopressin (AVP) systems are activated simultaneously and some components of the RAS and AVP cooperate in the regulation of renal functions via effects exerted either indirectly through the sympathetic nervous system or through active compounds released to the systemic circulation. Growing evidence shows that there is also local cooperation ...