Gabriela Krejčová

Learn More
Humanin and its analogues have been shown to protect cells against death induced by various Alzheimer's disease genes and amyloid-beta-peptides in vitro: the analogue [Gly14]-humanin has also been shown to be potent in reversing learning and memory impairment induced by scopolamine in mice in vivo. It is important to validate these results by using other(More)
Cyclosporine A (CsA) is the major immunosuppressive drug used for organ and neural transplantation and the therapy of selected autoimmune diseases. We investigated the effect of CsA on the activity of acetylcholinesterase (AChE) in the frontal cortex, hippocampus, septum, and basal ganglia. AChE was determined spectrophotometrically with acetylthiocholine(More)
Soman belongs to the most dangerous nerve agents because of the low effectiveness of the presently available antidotes. Soman acts by inhibiting acetylcholinesterase (AChE) both peripherally and centrally, with a subsequent accumulation of neuromediator acetylcholine and other metabolic changes. From the data published in literature it can be concluded that(More)
1. To study the influence of antidotes on low-level sarin-induced alteration of cognitive functions, male albino Wistar rats were exposed to three various low concentrations of sarin for 60 minutes in the inhalation chamber. One minute following sarin exposure, the rats were i.m. treated with the oxime HI-6 in combination with atropine. Control rats were(More)
To study the influence of pharmacological pretreatment (PANPAL) and antidotal treatment (obidoxime plus atropine) on tabun-induced neurotoxicity, male albino rats were poisoned with a lethal dose of tabun (280 microg/kg i.m.; 100% of LD(50) value) and observed at 24 h and 7 days following tabun challenge. The neurotoxicity of tabun was evaluated using a(More)
1. To study the influence of antidotes on tabun-induced neurotoxicity, the rats were injected intramuscularly with organophosphate tabun (LD50). The efficacy of choice antidotal treatment consisting of acetylcholinesterase reactivator obidoxime and one of four anticholinergic drugs (atropine, benactyzine, biperiden, scopolamine) was compared. 2. Testing of(More)
The aim of this work is a comparison of single and repeated peroral administration of cyclosporine (CsA) and the interaction of repeated administration of CsA and 7-methoxytacrine (MEOTA) on the activity of acetylcholinesterase (AChE) in the frontal cortex, hippocampus, septum, and basal ganglia in rats. Both single and repeated administration of CsA(More)
Pharmacological pretreatment and antidotal treatment on tabun-induced neurotoxicity were studied in male albino rats that were poisoned with a lethal dose of tabun (280 microg/kg i.m.; 100% of LD50 value) and observed at 24 hours and 7 days following tabun challenge. The neurotoxicity of tabun was evaluated using a Functional observational battery and an(More)
1. To study the influence of antidotes on low-level sarin-induced impairment of cognitive functions, the rats were exposed to three various low concentrations of sarin (LEVEL 1-3) for 60 minutes in the inhalation chamber. In addition, one group of rats was exposed to LEVEL 2 of sarin repeatedly. 2. Testing of cognitive functions was carried out using the(More)