Microalbuminuria is an early symptom and prognostic marker of the progression of renal pathology. The analysis of the role of anionic components of the renal glomeruli in the albumin retention and the development of a model of minimal changes in the glomerular filter leading to the appearance of microalbuminuria are relevant. The effect of organic cations D-arginine methyl esters (D-AME) and D-nitroarginine (D-NAME) on the excretion of albumin by the kidneys in rats was studied. D-AME had no effect on urinary albumin excretion in rats. D-NAME caused microalbuminuria, which persisted for more than a day and sharply increased after injection of vasopressin. The number of anionic sites labeled with polyethyleneimine decreased in the structures of the glomerular filter. D-NAME-induced microalbuminuria can later serve as a model for studying nephroprotective or damaging factors.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 176, No. 10, pp. 432-437, October, 2023
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Balbotkina, E.V., Karavashkina, T.A., Seliverstova, E.V. et al. Microalbuminuria in Rats Treated with D-Nitroarginine Methyl Ether. Bull Exp Biol Med 176, 437–441 (2024). https://doi.org/10.1007/s10517-024-06042-x
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DOI: https://doi.org/10.1007/s10517-024-06042-x