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Gudelj, Ivan
04/2017Web Resource
Provider: - Institution: - Data provided by Europeana Collections- N-glikozilacija proteina je ključna za razvoj i funkciju živčanog sustava. U ovoj disertaciji konstruiran je prostorno-vremenski glikomski profil mozga, istražujući N-glikanske strukture četiriju funkcionalno različitih regija mozga, fronatalna dorsalna kora velikog mozga, hipokampus, strijatum te mali mozak, i njihovu raspodjelu u mozgu odraslog čovjeka; kao i u mozgu čovjeka tijekom fetalnog razvoja. Također, s namjerom da se dobije evolucijska perspektiva N-glikanskih struktura unutar različitih regija mozga, napravljena je usporedba odgovarajućih regija mozga između glikoma mozga čovjeka, čimpanzi, makaki majmuna i štakora. Određivanje glikanskih profila uzoraka mozga je provedeno korištenjem dvaju analitičkih pristupa: tekućinske kromatografije ultravisoke djelotvornosti i spektrometrije masa. Uvidom u N-glikom analiziranih uzoraka, uočena je značajna razlika između različitih regija, vrsta i razvoja mozga. Razlika između N-glikoma je bila veća što su vrste bile evolucijski udaljenije. N-glikanski profil malog mozga se najviše razlikovao od ostalih analiziranih regija. Razvijena HILIC-UPLC metoda za analizu N-glikana tkiva mozga se pokazala reproducibilnom i robusnom.- Protein N-glycosylation is crucial for the development and function of the nervous system. In this dissertation, a spatio-temporal profile of the brain glycome was constructed by investigating N-glycan structures of four functionally distinct brain regions, the dorsal fronatal cortex, the hippocampus, the striatum and the cerebellum, and their distribution within the adult human brain as well as the fetal. Moreover, in order to obtain an evolutionary perspective of the corresponding brain regions, a cross-species comparison was made between the human, the chimpanzee, the macaque and the rat. Two analytical approaches were used for glycosylation profiling of brain samples: ultra-performance liquid chromatography and mass spectrometry. Significant difference was noticed between the regions, the species and the developmental stages in the analyzed N-glycomes. The difference between species was higher as they were evolutionary more distinct. The cerebellar N-glycom was the most distinctive of all the analyzed brain regions. The developed HILIC-UPLC method for the N-glycans analysis of the brain tissue was reproducible and robust.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
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