Effects of pentolinium on sodium excretion in dogs with constriction of the vena cava.
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Biomedical subjects
Publications and source records attributed to L E Fleischmann.
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Effects of prenatal ethanol exposure on postnatal renal function and structure in the rat. Renal function and morphology were studied in 90-day-old offspring of ethanol-fed (E) rats and were compared to pair-fed control (C) animals. Compared to C rats, E rats were smaller at birth, had higher fractional sodium excretion (p less than 0.01) and lower fractional potassium excretion (p less than 0.01). In E rats, sodium (Na) restriction resulted in a significant increase in urine flow and Na wastage, whereas C rats remained in Na balance. E rats developed hyperkalemia, when potassium (K) intake was increased from 2.8 to 14 mEq/day. Baseline creatinine clearance, urine and blood osmolalities and pH, plasma electrolytes and aldosterone concentrations were similar in both groups. There was no significant difference in wet or dry kidney weight, renal water content, or renal tissue concentrations of Na or K between the two groups. No difference was found in gross morphology or light microscopic appearances of the kidneys between E and C rats. Thus rats exposed to ethanol during fetal life have a defect in urine concentration and Na conservation when fed a low Na diet and a defect in K excretion when given a K load without evidence of any gross or light microscopic renal structural abnormalities at 90 days of age.