Serious brain ischemia was induced by occlusion of cerebral arteries in dogs. The occlusion time was 7 min. The blood was collected at various intervals of reperfusion (5, 60, 180, 240 min and 24 h). Thirty minutes before ischemization, stobadine was given (1, 2, or 5 mg/kg). The changes of erythrocyte membrane fluidity were evaluated using colloid-osmotic hemolysis induced by brilliant cresyl blue. In the control group (without stobadine) the colloid-osmotic hemolysis was significantly increased immediately after ischemization and after 5 and 60 min. However, after 240 min of reperfusion, a significant decrease of hemolysis was observed. The increase of colloid-osmotic hemolysis after ischemization in the control group was prevented after stobadine pretreatment. The thrombotization of microcirculation that was observed in the control group was not present after stobadine pretreatment.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/BF02960906 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Novel hexahydropyridoindole derivative as prospective agent against oxidative damage in pancreatic β cells.
Med Chem
November 2011
Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovak Republic.
The potential protective effect of (±)-8-methoxy-1,3,4,4a,5,9b-hexahydro-pyrido[4,3-b]indole-2-carboxylic acid ethyl ester (II) was assessed against hydrogen peroxide (H2O2)-cytotoxicity in rat pancreatic INS-1E β cells and compared with the effect of the related pyridoindole, stobadine (I), a promising indole-type reference antioxidant. Only pre-treatment with the compound (II) led to a significant preservation of the metabolic and secretory functions of the cells exposed to H2O2. The caspase-9 and -3 activities, as well as the early apoptotic changes of plasma membrane, were suppressed in the cells pre-incubated with both of compounds tested.
View Article and Find Full Text PDFStobadine inhibits doxorubicin-induced apoptosis through a caspase-9 dependent pathway in P815 mastocytoma cells.
Cell Biol Int
September 2007
Gazi University, Faculty of Medicine, Department of Immunology, Ankara, Turkey.
Doxorubicin (DOXO), a widely used chemotherapeutic agent, induces apoptosis in transformed and non-transformed cells. The apoptotic effect of DOXO has been linked to the generation of reactive oxygen species (ROS). Antioxidants may be effective in the prevention of DOX-induced apoptosis.
View Article and Find Full Text PDFNeurobehavioural changes in rats after neonatal anoxia: effect of antioxidant stobadine pretreatment.
Neuro Endocrinol Lett
December 2006
Institute of Experimental Pharmacology, Slovak Academy of Sciences, Bratislava, Slovakia.
Objectives: The aim of this study was to evaluate the effect of the synthetic pyridoindole antioxidant stobadine (STO, 50mg/kg/day) on behavioural alterations induced by acute neonatal anoxia in rat offspring.
Methods: STO was administered orally from day 15 of gestation up to day 7 post partum (PP). Pups of both genders were exposed to anoxia (100% N(2) for 10 minutes in a special glass chamber) on day 6 PP.
Effect of melatonin and stobadine on maternal and embryofoetal toxicity in rats due to intrauterine hypoxia induced by phenytoin administration.
Cent Eur J Public Health
March 2004
Institute of Experimental Pharmacology, Slovak Academy of Sciences, Bratislava, Slovak Republic.
The aim of the present study was to test the hypothesis that the natural antioxidant melatonin (MEL) and the synthetic antioxidant stobadine (STO) could reduce the incidence of maternal and embryofoetal toxicity in rats due to intrauterine hypoxia. Chronic hypoxia was induced pharmacologically by the administration of the anticonvulsant phenytoin (PHT) during the entire period of pregnancy. PHT disturbed the normal course of pregnancy, affected reproductive parameters and increased the incidence of skeletal anomalies.
View Article and Find Full Text PDFInvolvement of L-arginine-nitric oxide system in the response of isolated trachea to reactive oxygen species.
Methods Find Exp Clin Pharmacol
May 2003
Institute of Experimental Pharmacology, Slovak Academy of Sciences, Bratislava, Slovakia.
The aim of this study was to investigate the effect of reactive oxygen species (ROS), generated by electrolysis of Krebs-Henseleit solution (GE-KHS), on isolated guinea pig trachea and to assess the possible involvement of nitric oxide (NO) in the observed effects. The isolated trachea was superfused in GE-KHS, generating H2O2 and hypochlorous acid (HOCl), both of which slowly increased in the organ bath and reached final stable concentrations of 42 and 63 microM, respectively, at the rate of 20 ml/min(-1), and 261 and 245 microM, respectively, at the rate of 5 ml/min(-1). ROS GE-KHS-induced relaxation of tracheal rings was preceded by a small transient contraction in 40% and 65% of experiments when tracheal rings were superfused at the rate of 20 ml/min(-1) and 5 ml/min(-1), respectively.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!