[Estimation of phosphorilation level of amyloid beta, extracted from human blood plasma. Ultra high resolution mass spectrometry].
Mol Biol (Mosk)
; 48(4): 696-704, 2014.
Article
em Ru
| MEDLINE
| ID: mdl-25842854
ABSTRACT
Recently it has been shown that phosphorylation of the Ser8 residue in amyloid-beta (pS8-Abeta) is tightly involved in the pathogenesis ofAlzheimer's disease. Since this modification occurs in the key metal-binding domain of amyloid-beta, and thus should seriously affect the interaction of pS8-Abeta with zinc ions, this isoform might be a potential precursor of pathogenic oligomeric forms of amyloid beta. Hence the level of pS8-Abeta in human biological fluids (such as blood, urine, cerebral spinal fluid) might resemble the different stages of the pathogenesis of Alzhe- imer's disease. The aim of this workwas to develop a prototype of an analytical method for quantitative determination of the level of pS8-Abeta isoform in binary mixtures with native amyloid-beta in order to further use it to determine the levels of phosphorylated amyloid-beta in blood plasma samples of patients with Alzheimer's disease.
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Base de dados:
MEDLINE
Assunto principal:
Espectrometria de Massas
/
Peptídeos beta-Amiloides
/
Doença de Alzheimer
Idioma:
Ru
Ano de publicação:
2014
Tipo de documento:
Article