scholarly journals Non-invasive assessment of Alzheimer’s disease neurofibrillary pathology using 18F-THK5105 PET

Brain ◽  
2014 ◽  
Vol 137 (6) ◽  
pp. 1762-1771 ◽  
Author(s):  
Nobuyuki Okamura ◽  
Shozo Furumoto ◽  
Michelle T. Fodero-Tavoletti ◽  
Rachel S. Mulligan ◽  
Ryuichi Harada ◽  
...  
2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Aidan Kenny ◽  
Eva M. Jiménez-Mateos ◽  
María Ascensión Zea-Sevilla ◽  
Alberto Rábano ◽  
Pablo Gili-Manzanaro ◽  
...  

Abstract Alzheimer’s disease (AD) is characterized by a progressive loss of neurons and cognitive functions. Therefore, early diagnosis of AD is critical. The development of practical and non-invasive diagnostic tests for AD remains, however, an unmet need. In the present proof-of-concept study we investigated tear fluid as a novel source of disease-specific protein and microRNA-based biomarkers for AD development using samples from patients with mild cognitive impairment (MCI) and AD. Tear protein content was evaluated via liquid chromatography-mass spectrometry and microRNA content was profiled using a genome-wide high-throughput PCR-based platform. These complementary approaches identified enrichment of specific proteins and microRNAs in tear fluid of AD patients. In particular, we identified elongation initiation factor 4E (eIF4E) as a unique protein present only in AD samples. Total microRNA abundance was found to be higher in tears from AD patients. Among individual microRNAs, microRNA-200b-5p was identified as a potential biomarker for AD with elevated levels present in AD tear fluid samples compared to controls. Our study suggests that tears may be a useful novel source of biomarkers for AD and that the identification and verification of biomarkers within tears may allow for the development of a non-invasive and cost-effective diagnostic test for AD.


2017 ◽  
Vol 55 (3) ◽  
pp. 2340-2349 ◽  
Author(s):  
Alan López-López ◽  
Ellen Gelpi ◽  
Diana Maria Lopategui ◽  
Jose M. Vidal-Taboada

2000 ◽  
Vol 21 ◽  
pp. 220 ◽  
Author(s):  
Domenico Pratico ◽  
Christopher C. Clark ◽  
Virginia M-Y. Lee ◽  
John Q. Trojanowski ◽  
Garret A. FitzGerald

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