Studi di citotossicità del peptide ß-amiloide - A.I.M.A. Biella
Studi di citotossicità del peptide ß-amiloide - A.I.M.A. Biella
Studi di citotossicità del peptide ß-amiloide - A.I.M.A. Biella
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3.2 Misure <strong>di</strong> fluorescenza e scattering........................................................58<br />
3.3 Misure <strong>di</strong> <strong>di</strong>croismo circolare ...............................................................60<br />
4. Meto<strong>di</strong> <strong>di</strong> coltura dei protisti..............................................................................61<br />
4.1.Euglena gracilis...................................................................................61<br />
4.2. Dunaliella salina.................................................................................62<br />
4.3. Blepharisma japonicum.......................................................................63<br />
RISULTATI E DISCUSSIONE ........................................................................67<br />
RISULTATI DI SPETTROSCOPIA.................................................................68<br />
1. Cinetica <strong>di</strong> aggregazione <strong>del</strong> <strong>peptide</strong> β-<strong>amiloide</strong> (1-40)...................................68<br />
2. Effetto <strong>del</strong>l’ipericina sulla cinetica <strong>di</strong> aggregazione.........................................71<br />
2.1 Misure <strong>del</strong>la variazione <strong>di</strong> fluorescenza nel tempo.............................72<br />
RISULTATI DI CITOTOSSICITÀ..................................................................76<br />
1. Effetti <strong>del</strong> <strong>peptide</strong> β-<strong>amiloide</strong>(1-40) su Euglena gracilis....................................76<br />
2. Effetti <strong>del</strong> <strong>peptide</strong> β-<strong>amiloide</strong>(1-40) su Dunaliella salina...................................80<br />
Analisi con Ecotox............................................................................................80<br />
Analisi con Eukatrack.......................................................................................83<br />
2.1. Effetti <strong>di</strong> βA in forma fibrillare..........................................................84<br />
2.2. Effetti <strong>di</strong> βA in forma monomerica.....................................................88<br />
2.3. Effetti <strong>di</strong> βA in presenza <strong>di</strong> ipericina..................................................90<br />
3. Effetti <strong>del</strong> <strong>peptide</strong> β-<strong>amiloide</strong>(1-40) sul ciliato Blepharisma japonicum............95<br />
CONCLUSIONI.................................................................................................98<br />
RINGRAZIAMENTI.....................................................................................100<br />
BIBLIOGRAFIA.............................................................................................102<br />
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