ALTERATIONS IN CEREBROSPINAL FLUID SODIUM AND OSMOLALITY IN RATS DURING ONE-KIDNEY, ONE-WRAP RENAL HYPERTENSION |
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Authors: | J. R. Haywood J. Buggy G. D. Fink G. F. DiBona A. K. Johnson M. J. Brody |
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Affiliation: | Departments of Pharmacology and Psychology, The Iowa Cardiovascular Center and The Veterans' Administration Medical Center, University of Iowa, Iowa City, Iowa, USA |
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Abstract: | Measurements of plasma and cerebrospinal fluid (CSF) sodium and osmolality were made throughout the course of one-kidney, one-wrap Grollman renal hypertension. Although the plasma sodium and osmolality did not rise after 28 days, CSF sodium and osmolality was increased significantly at 3 days postwrap. As a result, the CSF to plasma ratio for both sodium and osmolality was significantly elevated during the initial postwrap period. These observations suggest that an increase in CSF sodium may provide an initiating stimulus for an elevated arterial pressure in one-kidney, one-wrap renal hypertension. |
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Keywords: | cerebrospinal fluid, osmolality, renal hypertension, sodium. |
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