Studie Evy Veselovské se zabývá notovanými kodexy, které vznikly na území dnešního Slovenska od 14. do začátku 16. století a do jejichž způsobu notace se promítl vliv českého kulturního prostředí., Recent research of Slovakian medieval notated codices and manuscript fragments raised an important fact: the written culture of the late 14th and 15th centuries in Slovakia was strongly influenced by education from Czech lands. Particularly between 1370 and 1520, the direct impact of the scribal notation tradition from Czech lands to Slovak area can be detected in a number of Slovakian music sources. Codices and dozens of manuscript fragments documenting Bohemian notation in the Slovak geographical area have become the subject of research, along with the systematization, analysis and evaluation of all currently known and edited medieval notated sources from Slovakia. The main purpose of this research is to organise the information gained from these sources, and to determine the general structural features of Bohemian notation in Slovakia., Eva Veselovská., Rubrika: Studie, and Slovenské resumé na s. 376, anglický abstrakt na s. 337.
A large number of songs have been preserved in the Strahov Codex (ca. 1465/67-1470), an important collection of polyphony from the latter half of the fifteenth century. These songs were once generally regarded as cantiones in Latin or as instrumental compositions, but a detailed study of this repertoire shows that the manuscript is an important source of secular compositions, and especially of chansons. Most of these songs have been preserved only in this manuscript. Questions remain as to when they were composed and how they found their way into a manuscript that originated in one of the Catholic regions of Bohemia., Lenka Hlávková-Mračková., and České resumé na s. 270.
Angiotensin converting enzyme (ACE) inhibition has been reported to induce regression of hypertrophy in several models of hemodynamic pressure overload. The aim of the present study was to determine whether the ACE inhibitor captopril can reduce hypertrophy of the left ventricle induced by a chronic volume overload and modify collagen composition of the hypertrophied myocardium. Rabbits with four months lasting aortic insufficiency were divided into two groups: treated with captopril (20 mg/kg/day) for five weeks and treated with placebo. The respective control groups were represented by sham-operated animals. Aortic insufficiency induced a decrease of diastolic pressure, an increase of systolic and pulse pressure, hypertrophy of the left and right ventricle, and an increase of hydroxyproline content in the left ventricle without a change of hydroxyproline concentrations in either ventricle. Captopril treatment further enhanced pulse pressure by decreasing diastolic blood pressure. Hypertrophy of the left ventricle, hydroxyproline content and concentration in both ventricles were unaffected by captopril treatment. It is concluded that ACE inhibition did not reverse the left ventricular hypertrophy developed as a result of overload induced by aortic insufficiency. We suggest that mechanisms different from activation of the renin-angiotensin system may play a decisive role in the maintenance of hypertrophy in this particular model of volume hemodynamic overload., F. Šimko, V. Pelouch, J. Kyselovic., and Obsahuje bibliografii
Pyridoxal isonicotinoyl hydrazone (PIH) is a new tridentate Fe-chelating agent that should be very promising in many pathological states resulting from both an iron-overload and formation of free radicals. The aim of our study was to investigate the effect of PIH on the cardiovascular system focusing to the regulatory protein - cardiac troponin T (cTnT). The study was carried out in two groups of Chinchilla male rabbits: 1) PIH (50 mg/kg dissolved in 10 % Cremophor i.p., once a week, 10 administrations, n=8) and 2) Cremophor (2 ml/kg i.p. in the same schedule, n=7). Plasma concentrations of cTnT (as a marker of myocardial damage) were measured using a commercial kit (Roche). cTnT was within the physiological range (i.e. < 0.1 mg/l) during the whole experiment in the Cremophor group. In the PIH group, the cTnT levels were not significantly increased when compared with the control group or with the initial values (except with those before the 5th administration). Furthermore, we analyzed the cytosolic and myofibrillar fraction of cTnT in the left ventricular myocardium. Using SDS-PAGE and Western blot we resolved three isoforms. The profiling of TnT did not differ significantly between the PIH-treated group and the Cremophor-treated group. Our data concerning cTnT support the opinion that the possible cardiotoxicity of PIH is very low., M. Adamcová, J. Macháčková, V. Geršl, V. Pelouch, T. Šimůnek, I. Klimtová, R. Hrdina, P. Poňka., and Obsahuje bibliografii
a1_The question was addressed of how nitric oxide synthase (NO synthase) inhibition-induced hypertension in rat parents would affect the cardiovascular system in their offsprings. Two experimental groups were set up: Group I - offsprings of parents who had both been administered NO synthase inhibitor L-nitro-arginine methyl ester (L-NAME 40 mg/kg/day) for 5 weeks, the treatment of dams continued till week 12. Group II - offsprings fed by dams administered L-NAME after delivery only for a period of 4 weeks. Control age-matched offsprings formed the third group. Blood pressure and heart rate in parents and in 3-week-old offsprings were determined noninvasively. In the offsprings, body and heart weight were measured and the heart/body weight ratio (HW/BW) was calculated. The NO synthase activity, and also ornithine decarboxylase activity as a marker of polyamine production, were determined in the heart. The acetylcholine-induced relaxation of aortic rings was also followed. A marked blood pressure increase with a tendency to a decreased heart rate was found in the offsprings of Group I. A significant decrease in heart weight and body weight with a decreased HW/BW ratio indicated cardiac hypotrophy that contrasted with the decrease in NO synthase activity and increase in ornithine decarboxylase activity in the heart. Noteworthy was also the finding of completely preserved relaxation of the aorta to acetylcholine. Offsprings of Group II were similarly characterized by significantly higher blood pressure, a tendency to decreased heart rate, a decrease in heart weight, but not of the HW/BW ratio. The contrasting findings of heart weight decrease on the one hand and NO synthase activity decrease and ornithine decarboxylase increase on the other, were also found in this group. Full relaxation of the aorta to acetylcholine was preserved., a2_It can be concluded that remarkable alterations in the cardiovascular system were found in offsprings of hypertensive NO compromised parents., M. Gerová, I. Bernátová, J. Török, M. Juráni., and Obsahuje bibliografii
This study is dedicated to the role of Czech musicians in the shaping of the modern musical culture of Bosnia and Herzegovina. The discontinuity of development there is a consequence of the countrys complicated political history after centuries under Ottoman rule, its annexation by Austria-Hungary (1878) was a major turning point for all spheres of society. Bosnian-Herzegovinian musical culture was also shaped by the influence of West-European music and of musicians from Europe, among whom the Czechs were the most numerous. On the basis of extensive archival research and work with literature, the author provides a comprehensive overview of their amateur and professional activities, paying attention in particular to musicians in military orchestras, and she also investigates their work in the areas of pedagogy, composition, and folkloristics., Fatima Hadžić., Obsahuje seznam literatury, and Anglické resumé na s. 143.