The role of the adrenergic nervous system in sodium and water excretion
| Autor: | H. G. Güllner |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
medicine.medical_specialty
Epinephrine Sodium Natriuresis chemistry.chemical_element Diuresis Kidney Kidney Concentrating Ability Kidney Tubules Proximal Norepinephrine Internal medicine Receptors Adrenergic beta Drug Discovery medicine Animals Genetics (clinical) Denervation Renal sodium reabsorption Splanchnic Nerves Adrenergic nervous system General Medicine Receptors Adrenergic alpha Water-Electrolyte Balance Electric Stimulation Rats Endocrinology chemistry Renal physiology Molecular Medicine Adrenergic Fibers medicine.drug |
| Zdroj: | Klinische Wochenschrift. 61:1063-1066 |
| ISSN: | 1432-1440 0023-2173 |
| Popis: | There is considerable evidence that the renal nerves contribute to the regulation of salt and water excretion by a direct effect on tubular reabsorption, independent of changes in renal hemodynamics. Whereas the effect of the adrenergic nervous system on sodium reabsorption appears to be established in anesthetised animals, it has been suggested that the basal activity of the renal sympathetic nerves in conscious dogs is too low to have a significant effect on sodium reabsorption by the proximal tubules. However, denervation natriuresis and diuresis has recently been demonstrated in conscious euvolemic and conscious volume expanded rats. The effects of renal nerve stimulation on the handling of sodium and water by the proximal tubule can be mimicked by infusion of the alpha-adrenergic agonist norepinephrine and prevented by infusion of an alpha-adrenergic antagonist. This confirms that it is mediated by alpha-receptors. The adrenergic nervous system may have an independent role in the control of sodium excretion or may be complementary to other systems such as the renin-angiotensin-aldosterone system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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