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  • Title: Oxalate uptake in intestinal and renal brush-border membrane vesicles (BBMV) in vitamin B6-deficient rats.
    Author: Gupta R, Sidhu H, Rattan V, Thind SK, Nath R.
    Journal: Biochem Med Metab Biol; 1988 Apr; 39(2):190-8. PubMed ID: 3377907.
    Abstract:
    Acute, subclinical, and chronic pyridoxine deficiency did not modify the oxalate influx in rat intestinal BBMV but elevated the oxalate reabsorption by renal tubular cells. The Na+ and K+ ions did not affect oxalate uptake in either intestinal or renal BBMV. Although thiol group blocking agents did not affect intestinal uptake of oxalate they significantly altered oxalate translocation across the renal tubular cells. Following pyridoxine deficiency the rat kidneys appear to be more specific for inducing oxalate lithiasis as compared to oxalate influx through the intestine.
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