Nanoparticles as agents for targeted delivery in the treatment of vascular pathologies

The strategy of treatment of cardiovascular diseases with preparations based on nanoparticles. For the visualization of atherosclerotic plaques, nanoparticles conjugated with indium (111In) based on antibodies bound to LOX-1 receptors of low density were used in mic

Pharmacokinetic studies of new antiparkinsonian drug Rapitalam

The aim of this study was to investigate the pharmacokinetic parameters of the mGluR4 receptor blocker Rapitalam on rabbits. There was developed the method of the quantitative determination of Rapitalam in the blood plasma of rabbits using high performance liquid chromatography with tandem mass spectrometric detection. The study was performed on 12 rabbits (males, weighing between 3,300 to 3,500 g). In intragastric dosing of the substance was administered using a gastric tube in the form of suspension in water 0.9 mg/ml, 9 mg/ml, and 90 mg/ml at a dose of 0.3 mg/kg, 3 mg/kg and 30 mg/kg. The main pharmacokinetic parameters of the substance was established on rabbits that allow you to optimize the future use of it's as a potential drug for the treatment of Parkinson's diseas

Prospects for the use of Etafilcon a soft contact lenses and Betaxolol hydrochloride in the ophthalmic therapeutic system for treatment of glaucoma combined with myopia

In this article the short description of soft contact lenses materials in terms of their use in the ophthalmic therapeutic systems and experimental results of their adsorptive properties in combination with the ophthalmic solution of Betaxolol hydrochloride are presente

Ion channel TRPA₁ is a promising therapeutic target for treatment of pain

In the last time information about the role of TRPA₁ in pain and cold sensitivity, as well as in the formation and maintenance of inflammation is increasing in scientific literature. Given this information, the interest for search and study of pharmacological agents, which selectively blocked of TRPA₁ and reduced the severity of pain and inflammation is increasin

Molecular screening of prospective candidates for TRPA₁ ion channel selective antagonists

Using the molecular modeling techniques, we analyzed spectra of biological activity of a series of promising candidates for selective antagonists of TRPA₁ ion channel in order to find potentially active compounds against pain and inflammatio

The study of the chemical composition of sorption substances

The article presents a study of the chemical composition of sorption substances. The chemical composition is established, the main prevailing elements and impurities are revealed. The crystal-chemical structure of sorption substances is proposed. A comparative analysis of the chemical composition and the classification of sorption substances, depending on the origi

PHARMACOKINETIC RESEARCH OF POTENTIAL HYGOGLICEMIC DRUGS С7070

Introduction: The development of effective drugs for the treatment of diabetes is one of the urgent problems of modern medicine; we conducted pharmacokinetic studies of the innovative hypoglycemic drug - C7070, in rabbits and rats. Materials and Methods: The object of the study was substance C7070. Two methods of administration have been studied: intravenously and intragastrically. The concentration of C7070 is determined in blood plasma by a sensitive and selective HPLC method with tandem mass spectrometry detection. The range of detection was from 0.02 μg to 3876.00 μg in 1 ml of plasma in the animals under study. Chromatographic separation was performed on a 150 × 3.0 mm column of Zorbax Eclipce XDB C18 with a particle size of 3.0 μm (Agilent technologies, USA). To obtain stable results, a Zorbax Eclipce XDB C18 (Agilent technologies, USA) protection column of 12.5 × 3.0 mm with a particle size of 5.0 μm was used at 40 ° C for all analytical cycles. Ballast proteins in the test solutions were precipitated with acetonitrile followed by extraction of the analyte with ultrasound. Results and its Discussion: With intragastric administration, the maximum concentration (Cmax) of C7070 in blood plasma reached, on average, in rabbits through (tmax) 60 ± 0.1 minutes, in rats after 170.0 ± 79.8 minutes and was 34.6 ± 7.3 μg/ml and 17.6 ± 1.4 μg/ml, respectively. The half-life (t1/2) was prolonged and was 291.8 ± 17.1 minutes for rabbits and 225.2 ± 12.4 minutes for rats. The absolute bioavailability (fa) of C7070 in rabbits was 78.2 ± 1.0%, in rats 18.1 ± 2.0%. When administered intravenously, Cmax C7070 in blood plasma averaged 123.1 ± 23.7 μg/ml in rabbits and 337.6 ± 40.5 μg/ml in rats. The half-life period (t1/2) was prolonged and amounted to 225.5 ± 15.9 minutes for rabbits and 154.1 ± 5.1 minutes for rats. The Conclusion: The pharmacokinetic characteristics of a potential hypoglycemic drug C7070 in animals (rats, rabbits) under two routes of administration, intra-gastrointestinal and intravenous, were studied. The parameters obtained can be useful for clinical application and further studies of C7070 drugs based on it. Key words: C7070, diabetes mellitus, hypoglycemic agents, blood plasma of rabbits and rats, high-performance liquid chromatography, pharmacokinetics

Search and evaluation of pharmacodynamic and pharmacokinetic parameters of selective blocker of TRPA₁ ion channels from the group of substituted pyrazinopyrimidinones

Search considerations evaluation of pharmacodynamic and pharmacokinetic parameters of selective blocker of TRPA₁ ion channels from the group of substituted pyrazinopyrimidinone

Pulmonary hypertension: modern methods of treatment and ways of their long-term development

The purpose of this work is to review the main pathogenetic mechanisms of the development of pulmonary hypertension (PH), as well as modern established methods of treatment of PH and to consider new most relevant and promising possibilities of therapy for this patholog

Application of parameters and requirements for the expert systems assessment in nano fiber based pharmaceutical technology

Todays, the most widely used category of intelligent systems are expert systems that are computer systems capable of partially replacing a highly trained professional in his/her area of expertise by means of information previously gained by the experts. That is why expert systems are agreed to be viewed along with information bases, which are models of the actions of experts in a particular area, and logical assumptions are extended to decision-making procedure