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  • Title: A mouse model for Liddle's syndrome.
    Author: Pradervand S, Wang Q, Burnier M, Beermann F, Horisberger JD, Hummler E, Rossier BC.
    Journal: J Am Soc Nephrol; 1999 Dec; 10(12):2527-33. PubMed ID: 10589691.
    Abstract:
    Liddle's syndrome (or pseudoaldosteronism) is an autosomal dominant form of salt-sensitive hypertension, due to abnormal sodium transport by the renal tubule. To study the pathophysiology of salt sensitivity, a mouse model for Liddle's syndrome has been generated by Cre/loxP-mediated recombination. Under normal salt diet, mice heterozygous (L/+) and homozygous (L/L) for Liddle mutation (L) develop normally during the first 3 mo of life. In these mice, BP is not different from wild type despite evidence for increased sodium reabsorption in distal colon and low plasma aldosterone, suggesting chronic hypervolemia. Under high salt intake, the Liddle mice develop high BP, metabolic alkalosis, and hypokalemia accompanied by cardiac and renal hypertrophy. This animal model reproduces to a large extent a human form of salt-sensitive hypertension and establishes a causal relationship between dietary salt, a gene expressed in kidney and hypertension.
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