New antiarrhythmic agent to stabilize functional activity of rat heart sinus node cardiomyocytes

The aim of this study was to explore the antiarrhythmic activity of the new antiarrhythmic drug, succinic acid ester of 5-hydroxyadamantane-2-one (ADK-1110) and its effect on the functional activity of rat heart sinus nod

The development of composition and technology of tablets afobazolа by a method wet granulation

In clause researches on development of tablets new anxiolytic agents - 2[-2(morpholino)-aethil]-thio-5-aethoxibenzimidazoli dihydrochloride-afobazol are presented. The optimum structure of auxiliary substances, for manufacture of tablets afobazolа by a method wet granulation is picked up and proved

The development of composition and the elaboration of the analitycal procedures of ladasten tablets

Ladasten is original anxiolytic medicine with the psychostimulant action that increases human resistance to unfavorable factors of the environment. As the result of the investigation the optimal composition was found and the methods of analysis were elaborated for the direct compression tablets

Cerebrovascular and Neuroprotective Effects of Adamantane Derivative

Objectives. The influence of 5-hydroxyadamantane-2-on was studied on the rats’ brain blood flow and on morphological state of brain tissue under the condition of brain ischemia. The interaction of the substance with NMDA receptors was also studied. Methods. Study has been implemented using the methods of local blood flow registration by laser flowmeter, [3H]-MK-801binding, and morphological examination of the brain tissue. We used the models of global transient ischemia of the brain, occlusion of middle cerebral artery, and hypergravity ischemia of the brain. Results. Unlike memantine, antagonist of glutamatergic receptors, the 5-hydroxyadamantane-2-on does not block NMDA receptors but enhances the cerebral blood flow of rats with brain ischemia. This effect is eliminated by bicuculline. Under conditions of permanent occlusion of middle cerebral artery, 5-hydroxyadamantane-2-on has recovered compensatory regeneration in neural cells, axons, and glial cells, and the number of microcirculatory vessels was increased. 5-Hydroxyadamantane-2-on was increasing the survival rate of animals with hypergravity ischemia. Conclusions. 5-Hydroxyadamantane-2-on, an adamantane derivative, which is not NMDA receptors antagonist, demonstrates significant cerebrovascular and neuroprotective activity in conditions of brain ischemia. Presumably, the GABA-ergic system of brain vessels is involved in mechanisms of cerebrovascular and neuroprotective activity of 5-hydroxyadamantane-2-on