Toombs, J;
Foiani, MS;
Paterson, RW;
Heslegrave, A;
Wray, S;
Schott, JM;
Fox, NC;
... Zetterberg, H; + view all
(2017)
Effect of Spinal Manometers on Cerebrospinal Fluid Amyloid-beta Concentration.
Journal of Alzheimer's Disease
, 56
(3)
pp. 885-891.
10.3233/JAD-161126.
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Abstract
The effect of spinal manometers on cerebrospinal fluid (CSF) amyloid-β (Aβ) concentration was investigated. Pooled human CSF samples were divided in two, one half passed through a manometer into a collection tube, the other transferred directly to a collection tube. CSF was analyzed for Aβ38/40/42 using an electrochemiluminescence immunoassay. Relative to control, use of a manometer decreased Aβ38/40/42 concentration by 5.6% (±1.5SE), 4.4% (±1.7SE), and 4.3% (±2.4SE), respectively. The ratios of Aβ42 :40, Aβ42 :38, and Aβ40 :38 were not affected by manometer treatment. Factors which artificially lower CSF Aβ concentrations are relevant to clinical diagnosis for AD and study design.
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