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polyanion

Pronunciation: pol'e-an'i-on

Definition: Anionic sites on proteoglycans in the renal glomeruli that restrict filtration of anionic molecules and facilitate filtration of cationic proteins; loss of polyanion may cause albuminuria in lipoid nephrosis.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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