Original title: Alkaloidy Vinca minor L. a jejich biologická aktivita VIII.
Translated title: Vinca minor L. alkaloids and their biological activity VIII.
Authors: Hojgrová, Veronika ; Chlebek, Jakub (advisor) ; Šafratová, Marcela (referee)
Document type: Master’s theses
Year: 2021
Language: cze
Abstract: [cze] [eng]
V. Hojgrová: Alkaloidy Vinca minor L. a jejich biologická aktivita VIII. Diplomová práce, Univerzita Karlova, Farmaceutická fakulta v Hradci Králové, Katedra farmaceutické botaniky. Počet stran 69. Tato diplomová práce se zabývá izolací alkaloidů z Vinca minor L. z čeledi Apocynaceae. Separace alkaloidů z vybrané frakce (VM 215-258), respektive z jejich podfrakcí (VM 34-41, VM 86, VM 87-113) probíhala pomocí preparativní TLC. Podařilo se izolovat dva čisté alkaloidy z podfrakce (VH 34-41). První alkaloid VH-1, který nebyl doposud izolován a druhý alkaloid VH-2: (-)-raukubainin. Alkaloidy byly identifikovány na základě EI-MS, LC-MS, NMR a optické otáčivosti a byly porovnány s daty v odborné literatuře. Izolované alkaloidy byly testovány na inhibiční aktivitu vůči acetylcholinesterase (AChE), butyrylcholinesterase (BuChE) a prolyloligopeptidase (POP) a na cytotoxicitu. Obě látky nevykazovaly po změření významnou cholinesterasovou inhibiční aktivitu IC50 vůči AChE, vůči BuChE vykazoval mírnou aktivitu pouze (-)-raukubainin (IC50 = 94 ± 7 μM), VH-1 byl shledán jako neaktivní (IC50 >100 μM). Inhibiční aktivita vůči POP byla testována zatím pouze u (-)-raukubaininu; byl shledán neaktivním (IC50 > 1000 µM). Výsledky cytotoxické aktivity alkaloidů (-)-raukubaininu a VH-1 v době odevzdávání této diplomové... V. Hojgrová: Alkaloids of Vinca minor L. and their biological activity VIII. Diploma thesis, Charles University, Faculty of Pharmacy in Hradec Králové, Department of Pharmaceutical Botany. Number of pages 69. This diploma thesis deals with the isolation of alkaloids from Vinca minor L. from the family Apocynaceae. Separation of alkaloids from the selected fraction (VM 215-258) or from their subfractions (VM 34-41, VM 86, VM 87-113) was performed by preparative TLC. Two pure alkaloids were isolated from the subfraction (VH 34-41). The first VH-1 alkaloid not yet isolated and the second VH 2 alkaloid: (-)-raucubainin. Alkaloids were identified by EI-MS, LC-MS, NMR and optical rotation and were compared with data in the literature. Isolated alkaloids were tested for acetylcholinesterase (AChE), butyrylcholinesterase (BuChE) and prolyloligopeptidase (POP) inhibitory activity and for cytotoxicity. Both substances did not show significant cholinesterase inhibitory activity IC50 against AChE after measurement, only (-)-raucubainin showed a slight activity against BuChE (IC50 = 94 ± 7 μM), VH-1 was found to be inactive (IC50 > 100 μM). POP inhibitory activity has so far only been tested for (-)-raucubainin; was found to be inactive (IC50 > 1000 µM). The results of the cytotoxic activity of the alkaloids...
Keywords: acetylcholinesterase; Alzheimer's disease; Apocynaceae; butyrylcholinesterase; cytotoxicity; indole alkaloids; prolyl oligopeptidase; Vinca minor; acetylcholinesterasa; Alzheimerova choroba; Apocynaceae; butyrylcholinesterasa; cytotoxicita; indolové alkaloidy; prolyloligopeptidasa; Vinca minor

Institution: Charles University Faculties (theses) (web)
Document availability information: Available in the Charles University Digital Repository.
Original record: http://hdl.handle.net/20.500.11956/126045

Permalink: http://www.nusl.cz/ntk/nusl-446426


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Universities and colleges > Public universities > Charles University > Charles University Faculties (theses)
Academic theses (ETDs) > Master’s theses