Moreover, they detected dimeric and tetrameric (termed A8 and A16, respectively) Aβ aggregates from the HPLC separations of plaques from AD having the same ragged NH2-terminal ends.
The most distinct spectral separation of Aβ plaques and NFTs was obtained with the asymmetric tetramers.
As previously reported, replacing the end carboxyl moiety with hydrogen, resulting in p-HTAA or p-HTAA-Se, also diminished the spectral separation of Aβ plaques and NFTs.
Clearly, introducing selenophenes or asymmetry to the molecule did not impair the amyloid-binding properties; however, spectral analysis of the ligands bound to Aβ aggregates or NFTs revealed that the structural modifications had major impact on the ability for spectral separation of Aβ plaques and NFTs.
Assessment of student performance in the oral microbiology lab curriculum from 2009 to 2013 are summarized in Table 4.> Experiment 1 was carried out by means of "collection of dental plaque and separation of cariogenic bacteria" to train and assess students' basic, professional, innovative, and comprehensive abilities.
Arrays of plaques, posters and medallions.
No statistically significant difference was detected in calcified areas of plaques vs. non-calcified plaques.
Three quantitative measures of plaque pathology were used: percentage plaque burden, average plaque size and number of plaques.
They proposed therefore that MMP-7, specifically expressed in atherosclerotic lesions, could cleave structural proteoglycans including versican, potentially leading to separation of caps and shoulders from lipid cores and plaque instability.
With the separation of the immunocomplex using an external magnetic field, the final plaque displayed bright blue color.
