Renal effects of the sulfur-containing aminoacid derivatives (ademetionine, taurin and glutathion) in conditionally healthy animals
DOI:
https://doi.org/10.24959/cphj.18.1472Keywords:
renal effects, ademetionine, taurine, glutathioneAbstract
Derivatives of sulfur-containing aminoacids (ademetionin, taurine and glutathione) selected for the experimental studies are used in various fields of practical medicine due to their multifaceted pleiotropic effects. The study of their renal effects in the conditions of the physiological norm makes it possible to expand and supplement their pharmacological characteristics, and forms the basis for further study of the nephroprotective potential in renal pathology.
Aim. To study the effect of sulfur-containing amino acid derivatives (ademetionine, taurine andglutathione) on the morphofunctional state of the rat kidneys in the daily administration for 7 days.
Materials and methods. The experiments were performed on mature non-linear white rats weighing 130-180 g. Animals were divided into 4 groups (n = 7): group I – intact control, group II – animals which were given ademetionine (“Geptral”, “Abbott SpA”, Italy) in the dose of 20 mg/kg, group III – animals received taurine (“Sigma-Aldrich”, USA) in the dose of 100 mg/kg, group IV – animals received glutathione (“TAD 600”, “Biomedica Foscama”, Italy) in the dose of 30 mg/kg. All drugs were injected intramuscularly for 7 days.
Results. The study of the renal effects of the sulfur-containing amino acid derivatives (SAD) under research in the daily administration for 7 days to conditionally healthy animals showed that these drugs had a weak diuretic effect, which was probably due to a decreased tubular reabsorption of water without significant changes in the glomerular filtration rate. Besides, the use of ademetionine resulted in a slight reduction of azotemia. There was not any significant change in the acid regulatory kidney function under the effect of SAD. Administration of ademetionine, taurine and glutathione resulted in a significant decrease in proteinuria, which was probably caused by the effect on the processes of protein reabsorption. The effect on the ion regulatory kidney function upon the course of SAD administration was characterized by an increase in urinary sodium excretion against the background of decreased relative sodium reabsorption, which was accompanied by intensification of distal transport of sodium ions due to the activation of the tubular-tubular balance. The morphological examination did not reveal any histopathological changes in the renal tissue, confirming the absence of nephrotoxicity of the SAD studied.
Conclusions. According to the data obtained the 7-day administration of ademetionine, taurine and glutathione to conditionally healthy animals moderately affects the processes of glomerular filtration and tubular transport in nephrons, which results in a slight increase in diuresis along with preservation of the renal mechanisms of autoregulation and the absence of histopathological changes in the kidneys.
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