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Осмотическая активность и клеточная токсичность урографина

Осмотическая активность и клеточная токсичность урографина

Abstract

In vitro studies showed that modern high-quality solutions 26 %, 38 %, 67 % and 76 % of urografin not have isotonic activity. Moreover, they have hyperosmotic activity, so when injected into the blood increases the osmotic activity of plasma, dehydrate erythrocytes and wrinkle them. In particular, the solution 76 % of urografin has osmotic activity within 2150, mosmol/l of water. It is shown that after 3 minutes the interaction of the drug with blood in equal volumes at a temperature of 25° C red blood cells are reduced in diameter, lose a spherical shape and take the form of crumpled half-empty package. The same solution of urografin after dilution in 5 times by water for injection has osmotic activity less 430 mosmol/l of water, so when injected into the blood has a very weak dehydrating effect, practically does not reduce the size of red blood cells and not deprive them of the spherical form. We have identified excessive hyperosmotic activity of the solutions 26 – 76 % of urografin explains their clinical toxicity, which may be reduced by the cultivation of drugs in 5 times by water for injection

В исследованиях in vitro показано, что современные качественные растворы 26 %, 38 %, 67 % и 76 % урографина не обладают изотонической активностью. Более того, они имеют гиперосмотическую активность, поэтому при введении в кровь повышают осмотическую активность плазмы, обезвоживают эритроциты и сморщивают их. В частности, раствор 76 % урографина имеет осмотичсекую активность в пределах 2150 мОсмоль/л воды. Показано, что через 3 минуты взаимодействии этого препарата с кровью в равных объемах при температуре 25°С эритроциты уменьшаются в диаметре, теряют шаровидную форму и приобретают форму смятого полупустого пакета. Этот же раствор урографина после разведения в 5 раз водой для инъекций имеет осмотическую активность менее 430 мОсмоль/л воды, поэтому при введении в кровь оказывает очень слабое дегидратирующее действие, практически не уменьшает размер эритроцитов и не лишает их шаровидной формы. Выявленная нами чрезмерно высокая гиперосмотическая активность растворов 26 – 76 % урографина объясняет их клиническую токсичность, которая может быть снижена разведением лекарств в 5 раз водой для инъекций.

Keywords

РЕНТГЕНОКОНТРАСТНЫЕ СРЕДСТВА, ИНЪЕКЦИИ В КРОВЬ, ГИПЕРОСМОТИЧЕСКАЯ КОМА, САХАРНЫЙ ДИАБЕТ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold