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  • Title: Disturbed relationship between urinary prostaglandin E2 excretion, plasma arginine vasopressin and renal water excretion after oral water loading in early hepatic cirrhosis.
    Author: Jespersen B, Pedersen EB, Madsen M, Christensen P, Eiskjaer H, Leyssac PP, Sørensen SS.
    Journal: Eur J Clin Invest; 1988 Apr; 18(2):202-6. PubMed ID: 3133226.
    Abstract:
    An oral water load of 20 ml kg-1 body weight was given to 11 patients with early hepatic cirrhosis and to 16 healthy control subjects. Urinary output (V), free water clearance (CH2O), urinary excretion of prostaglandin E2 (PGE2) and F2 alpha (PGF2 alpha), and plasma concentration of arginine vasopressin (AVP) were determined before and during the first 4 h after loading. During basal conditions, PGE2 excretion was the same in patients (75 pg min-1, median, range 15-569) and controls (78 pg min-1, range 22-262), but during the first hour after water loading, PGE2 increased to a significantly higher level in cirrhotic patients (423 pg min-1, median) than in control subjects (162 pg min-1) (P less than 0.05). No difference in PGF2 alpha excretion was found between the two groups. Urinary output and CH2O were significantly lower after water loading in patients than in controls. Arginine vasopressin before water loading did not differ between patients and control subjects, but after loading it was unchanged in the patients, whereas a significant reduction (1.9 to 1.4 pmol l-1, P less than 0.01) was found in the control subjects. In controls, but not in patients, PGE2 was significantly positively correlated to V and CH2O, and negatively correlated to AVP after water loading. Thus, renal PGE2 excretion is increased and CH2O is decreased after water loading in patients with early hepatic cirrhosis, and a disturbed relationship seems to exist between PGE2 on the one hand, and AVP and renal water excretion, on the other, in these patients after water loading.(ABSTRACT TRUNCATED AT 250 WORDS)
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