Ghrelin is a new endogenous peptide, discovered in 1999 by Kojima et al., as the result of a search for an endogenous ligand for an orphan receptor of known structure and function. Ghrelin is composed of 28 amino acids and is produced mostly by cells of the stomach, hypothalamus, and hypophysis, but it has also been detected in other tissues. Its discovery is related to the development of a new hypothesis regarding the regulation of growth hormone secretion. It is an antagonist of somatostatin. Ghrelin activates the release of growth hormone from the somatotrophic cells of the hypophysis. It participates in the regulation of energy homeostasis, increases food intake, decreases energy output and exerts a lipogenetic effect. Its metabolic effects do not depend on the GH/IGF-I system, but are mediated by the NPY/Y1 and AGRP receptor system. Ghrelin influences the secretion and motility of the gastrointestinal tract, especially the stomach. The presence of ghrelin and its receptors has also been demonstrated in many other tissues. Its function in these tissues has not yet been studied, thus providing many possibilities for further research., M. Rosická, M. Kršek, Z. Jarkovská, J. Marek, V. Schreiber., and Obsahuje bibliografii
Obsahový a textový rozbor Meyerbeerova díla na příkladu libret oper Robert ďábel, Hugenoti, Prorok a Afričanka ve světle křesťanské víry jako protipólu skladatelova židovského původu a úvodní reflexe Meyerbeerovy osobnosti v dobové literatuře., uvažuje Václav Müller, and Hudební osobnosti.
Aneuryzma břišní aorty (AAA) je závažné onemocnění s vyšší prevalencí v pokročilém věku. Výdutě šíře nad 5,5 cm jsou indikovány k operačnímu nebo endovaskulárnímu řešení. Zřídka se dnes pro velké riziko jejich ruptury setkáváme s rozsáhlými výdutěmi. V kazuistice prezentujeme případ objemného AAA a jeho operačního řešení., Abdominal aortic aneurysm (AAA) is related with higher age and poses a serious threat to the patient´s life. Aneurysms larger than 5.5 cm in diameter are indicated for open or endovascular repair. Giant aneurysms are rarely encountered due to a high risk of rupture. We present a case report of such a giang aneurysm and its open repair., and V. Opatrný, V. Třeška, J. Moláček, R. Tupý