Studies on mineralocorticoid 'escape' in cirrhosis. 1979

S P Wilkinson, and I K Smith, and H Moodie, and L Poston, and R Williams

1. The mineralocorticoid 9 alpha-fluorohydrocortisone was given to 12 patients with cirrhosis without ascites. In seven an 'escape' from its sodium-retaining effects was observed, the other five continuing to retain sodium. 2. Changes in plasma renin activity (PRA) and inulin clearance (Cinulin) were used in the assessment of possible changes in the 'effective' extracellular fluid volume. PRA fell and Cinulin increased to a similar extent in each of the two groups of patients. The findings do not support the concept that the failure to show the mineralocorticoid escape in some patients with cirrhosis is due to a failure of expansion of the effective extracellular fluid volume. 3. Sodium reabsorption in the different segments of the nephron as estimated by clearance techniques under conditions of maximal water diuresis showed that the greatest changes to account for both mineralocorticoid escape and sodium retention were in the part of the nephron beyond the diluting segment.

UI MeSH Term Description Entries
D007444 Inulin A starch found in the tubers and roots of many plants. Since it is hydrolyzable to FRUCTOSE, it is classified as a fructosan. It has been used in physiologic investigation for determination of the rate of glomerular function.
D008104 Liver Cirrhosis, Alcoholic FIBROSIS of the hepatic parenchyma due to chronic excess ALCOHOL DRINKING. Alcoholic Cirrhosis,Hepatic Cirrhosis, Alcoholic,Alcoholic Hepatic Cirrhosis,Alcoholic Liver Cirrhosis
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008901 Mineralocorticoids A group of CORTICOSTEROIDS primarily associated with water and electrolyte balance. This is accomplished through the effect on ION TRANSPORT in renal tubules, resulting in retention of sodium and loss of potassium. Mineralocorticoid secretion is itself regulated by PLASMA VOLUME, serum potassium, and ANGIOTENSIN II. Mineralocorticoid,Mineralocorticoid Effect,Mineralocorticoid Effects,Effect, Mineralocorticoid,Effects, Mineralocorticoid
D011188 Potassium An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
D012083 Renin A highly specific (Leu-Leu) endopeptidase that generates ANGIOTENSIN I from its precursor ANGIOTENSINOGEN, leading to a cascade of reactions which elevate BLOOD PRESSURE and increase sodium retention by the kidney in the RENIN-ANGIOTENSIN SYSTEM. The enzyme was formerly listed as EC 3.4.99.19. Angiotensin-Forming Enzyme,Angiotensinogenase,Big Renin,Cryorenin,Inactive Renin,Pre-Prorenin,Preprorenin,Prorenin,Angiotensin Forming Enzyme,Pre Prorenin,Renin, Big,Renin, Inactive
D005260 Female Females
D005438 Fludrocortisone A synthetic mineralocorticoid with anti-inflammatory activity. 9-Fluorocortisol,9 alpha Fludrohydrocortisone,9 alpha-Fluoro-17-Hydroxycorticosterone,9 alpha-Fluorohydrocortisone,9-Fluoro-17-Hydroxycortisone,9-Fluorohydrocortisone,Astonin,Astonin Merck,Astonin-H,FCOL,9 Fluoro 17 Hydroxycortisone,9 Fluorocortisol,9 Fluorohydrocortisone,9 alpha Fluoro 17 Hydroxycorticosterone,9 alpha Fluorohydrocortisone,Astonin H,Merck, Astonin
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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