Abstract
The study of the effect of furoxane on renal activity under conditions of spontaneous diuresis was performed by the method of Berkhin. Hydrochlorothiazide was chosen as a reference drug. Furoxane and hydrochlorothiazide were administered intragastrically at a dose of 25 mg/kg for 7 days. The content of Na+ and K+in the urine was determined by flame photometry. The concentration of creatinine in the urine was studied by the method of Folin in the modification of Berkhin. The obtained results were calculated using the methods of variation statistics. The analysis of the results shows that under one-time action of furoxane in rats the daily urination increased by 210.4 % (p <0.001), the concentration of Na+ in the urine of rats increased by 51.9 % (p <0.05), and the concentration of K+ in the urine tended to increase by 5.6 %. Natriuresis increased 1.7 times (p <0.05), potassium - 1.23 times (p <0.05). Excretion of endogenous creatinine increased 1.49 times (p <0.05), indicating an improvement in glomerular ultrafiltration. After administration of hydrochlorothiazide there was an increase in diuresis by 92.2 % (p <0.05), urinary Na+ concentration increased by 49% (p <0.05) and increased Na+excretion from urine by 23.3 % (p <0.05). K+ concentration in urine increased by 12.6 %, and K+excretion - by 27.5 % (p <0.05). Thus, a single administration of furoxane at a dose of 25 mg/kg led to an increase in daily diuresis, Na+ and K+ diuresis, which indicates the potential diuretic and saluretic properties of the drug. Long-term (7 days) furoxane administration contributed to the increase of urination in animals. After 3 days diuresis increased by 226,1 % (p <0.001), on 7th day – by 236,3 % (p <0.001). Salures was increased: the excretion of Na+ after 3 days increased by 2.27 times (p <0,05), after 7 days - by 2,38 times (p <0,05), K+ - 1.83 times (p <0.05). The gradual increase in creatinine excretion in the dynamics of the use of furoxane, indicated a possible prolongation of the effect of furoxane. Thus, furoxane, which by its chemical structure belongs to methylxanthine derivatives is a promising pharmacologically active substance for further study of its specific activity and safety in order to create a highly effective diuretic and implementation in clinical practice.
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