Nowadays, a significant number of antiepileptic drugs aimed at influencing the main inhibitory transmitter – gamma-aminobutyric acid (GABA). Compounds with various chemical structures, binding to different GABA_A sites, potentiate the action of amino acid. Recent studies have reported that phenolic compounds such as vanillin and its derivatives also have actions within the CNS and act as enhancer of GABA potential. On the other hand, vanillin affects the peripheral nervous system as agonist of TRPV1 channels that are involved in the transmission and modulation of pain (nociception) as well as the integration of diverse painful stimuli. At the present study, the influence of vanillin and its derivatives (vanillin oxime, vanillyl alcohol and vanillic acid) on the central and peripheral nervous system was reliably confirmed by evaluating their anticonvulsant, antidepressant and analgesic activity. The present findings indicate that all aforementioned compounds possess antiseizure action after oral administration on PTZ-induced convulsion model. Antidepressant activity, studied by forced swimming test (FST), has been more pronounced manifested for vanillin and vanillic acid during 24 hours after administration. Intriguingly, TRPV1 agonist vanillin and its oxime after transdermal delivery produced hyperalgesia when tested on allylisothiocyanate- and capsaicin-induced models, whereas vanillyl alcohol and vanillic acid were found to reduce the pain sensation.

Introduction. Thrombotic complications caused by the tumor and consequences of its treatment are the leading causes of death in cancer patients. The development of a model for the pathology of hemostasis, in particular the excessive pathological clot formation, in the laboratory animals receiving antitumor agents, could help find new pharmacological methods for correcting hemostatic disorders.The purpose of the study was to study the effect of cisplatin on the blood coagulation system in mice and rats.Results. An experiment using outbred mice showed that the levels of PT-INR and aPTT were decreased and the level of fibrinogen was increased on day 10 after administration of cisplatin in the maximum tolerated dose of 10 mg/kg. A significant decrease in the PT-INR and aPTT levels was observed on day 15 after cisplatin injection only in female mice. The cisplatin injection at a dose of 4 mg/kg resulted in a decrease in the PT-INR, and aPTT levels and an increase in fibrinogen concentration on day 10. In rats, a significant decrease in the PT and aPTT levels was observed in both females and males on day 15 after cisplatin injection.Conclusion. A change in the PT and NIR, aPTT levels towards decrease and fibrinogen concentration towards increase indicates the initiation of thrombus formation.

The aim is to evaluate the state of hemostasis and liver system, as well as nitrogen and protein metabolism on the model of direct lung damage in the experiment on 50 mongrel female SD rats weighing 200-250 g. In the experiment, acute respiratory distress syndrome was modeled by a single intratracheal injection of acidine-pepsin with pH-1.2 in the amount of 0.1 ml per animal in the control group (n = 25) and the modeling group (n = 25). Researchers sampled the material after 1, 3, 5, 7, and 14 days (terminal points). Lung damage was assessed by light microscopy on histological preparations. Researchers analyzed serum for biochemical studies, collecting samples from the heart in tubes containing 3.8% sodium citrate at a ratio of 1:9 for coagulation tests in tubes with activator. During the experiment, haemostasis system disturbances accompanied acute respiratory distress syndrome formation, resulting in reduced prothrombin and activated partial thromboplastin time, elevated fibrinogen concentration, and decreased antithrombin III levels. Moreover, it led to the development of multi-organ failure, as evidenced by the recorded deviations of biochemical and coagulation parameters. The combination of multiple pathological processes within a syndrome is the greatest challenge in the treatment process. The development of experimental models to identify the interrelationship of the largest number of significant systems will allow the creation of an optimal model reproducing the entire symptom complex for the development of new protocols to treat acute respiratory distress syndrome.