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Vrednotenje metabolizma in permeabilnosti parabenov v izbranih celičnih linijah in vitro = Metabolism and permeability evaluation of parabens in selected cell lines in vitro : diplomska naloga : univerzitetni študijski program KozmetologijaZagorc, Ana, farmacevtkaParabeni so konzervansi, ki se uporabljajo v kozmetičnih, prehranskih in farmacevtskih izdelkih. Kemijsko so alkil estri para-hidroksibenzojske kisline. Poznamo več vrst parabenov pod različnimi ... imeni, kot taki se naprimer najpogosteje uporabljajo metilparaben (E218), etilparaben (E214), propilparaben (E216) itn. Zanimali so nas kratkoverižni parabeni, saj imajo ti večjo sposobnost penetracije skozi kožo kot dolgoverižni. Ker sta običajni poti vnosa parabenov v organizem skozi prebavila in skozi kožo, smo za raziskovanje vstopa parabenov izbrali celične linije Caco-2, HepG2 in NCTC2544. Glavna presnovna pot, ki omejuje biološko uporabnost parabenov, je metabolizem do para-hidroksibenzojske kisline. Zato smo v vseh celičnih linijah preverili zmožnost zaznavanja in kvantitativne opredelitve te pretvorbe. S Caco-2 celicami smo določili tudi permeabilnostne lastnosti parabenov in para-hidroksibenzojske kisline. Za sočasno detekcijo različnih spojin v vzorcih smo uporabili HPLC (tekočinska kromatografija visoke ločljivosti) sistem in razvili metodo, ki je dovolj selektivna in občutljiva. Primerna je morala biti za sočasno določanje vseh načrtovanih preiskovanih spojin v dovolj kratkem času, da je omogočala analizo velikega števila vzorcev pridobljenega v poskusih. Opazovali smo kako temeljito se parabeni metabolizirajo in opazili velik del pretvorbe preiskovanih spojin v metabolit že medtem, ko so parabeni prehajali sluznico.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [A. Zagorc], 2021Language - slovenianCOBISS.SI-ID - 92998147
Author
Zagorc, Ana, farmacevtka
Other authors
Žakelj, Simon
Topics
Kozmetika |
Metabolizem |
metabolizem parabenov |
permeabilnost |
kratkoverižni parabeni |
celične linije
Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Pharmacy, Ljubljana | Ljubljana | FFALJ |
reading room 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Zagorc, Ana, farmacevtka | |
Žakelj, Simon | 22659 |
Source: Personal bibliographies
and: SICRIS
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