This thesis deals with bond strength of metal ions in humic gels. Several samples of humic acids were studied to consider influence of samples isolation process and their consequent characteristics on bond strength of metal ions in their complexes. Some functional groups was blocked by methylation at some samples. Amount of active functional groups in individual samples was determined by standard titration methods. Metal ions bound in humic complexes were divided into several fractions by extraction with different reagents (distilled water, 1M MgCl2, 1M HCl and 0,025M NH4EDTA). Two extraction methods were used: sequential and fractional. During the fractional extraction leaching of metal ions always proceeds in single agents from original komplex, whereas during the sequential extraction leaching proceeds gradually in all extraction agents in order according to rising afinity of agents, i.e. bond strength of metal ions in samples. Amount of metal ions in leaches after extractions was analysed by UV-VIS spektrometry.

of thesis Diagnostics of neuroinfection caused by human herpesviruses using nucleic acid amplification methods author: MUDr. Klára Labská supervisor: doc. MUDr. Vilma Marešová, CSc. In recent years, the diagnosis of neuroinfections has undergone a shift towards molecular biology methods. Our research focused on the predictive value of the capture of herpesvirus (HV) DNA in cerebrospinal fluid. In the first study, we examined the presence of DNA neurotropic herpes viruses (HSV1, HSV2, VZV and HHV6) in cerebrospinal fluid in immunocompetent patients with laboratory-confirmed tick-borne meningoencephalitis and enterovirus meningitis and meningoencephalitis. The control group consisted of patients with proven absence of an inflammation in the cerebrospinal fluid. Patients were followed for 6 months. The course of the disease and its consequences, including laboratory tests, were compared between groups of patients with and without the presence of HV DNA. In the second study, we tried to demonstrate the presence of HSV1 DNA in cerebrospinal fluid during its symptomatic reactivation in patients with purulent meningitis. In our group of immunocompetent patients with non-purulent inflammation in the cerebrospinal fluid, the proportion of HV DNA positive patients reached 7.5% (13 out of 173), we also...