Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26212450
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 ACS+Chem+Neurosci
2015 ; 6
(9
): 1503-8
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Real-Time Monitoring of Alzheimer s-Related Amyloid Aggregation via Probe
Enhancement-Fluorescence Correlation Spectroscopy
#MMPMID26212450
Guan Y
; Cao KJ
; Cantlon A
; Elbel K
; Theodorakis EA
; Walsh DM
; Yang J
; Shah JV
ACS Chem Neurosci
2015[Sep]; 6
(9
): 1503-8
PMID26212450
show ga
This work describes the use of fluorescence correlation spectroscopy (FCS) and a
novel amyloid-binding fluorescent probe, ARCAM 1, to monitor the aggregation of
the Alzheimer's disease-associated amyloid ?-peptide (A?). ARCAM 1 exhibits a
large increase in fluorescence emission upon binding to A? assemblies, making it
an excellent candidate for probe enhancement FCS (PE-FCS). ARCAM 1 binding does
not change A? aggregation kinetics. It also exhibits greater dynamic range as a
probe in reporting aggregate size by FCS in A?, when compared to thioflavin T
(ThT) or an A? peptide modified with a fluorophore. Using fluorescent burst
analysis (via PE-FCS) to follow aggregation of A?, we detected soluble aggregates
at significantly earlier time points compared to typical bulk fluorescence
measurements. Autocorrelation analysis revealed the size of these early A?
assemblies. These results indicate that PE-FCS/ARCAM 1 based assays can detect
and provide size characterization of small A? aggregation intermediates during
the assembly process, which could enable monitoring and study of such aggregates
that transiently accumulate in biofluids of patients with Alzheimer's and other
neurodegenerative diseases.