Intra-arterial infusion of [125I]Aβ1-40 labels amyloid deposits in the aged primate brain in vivo

Joseph R. Ghilardi, Mark Catton, Evelyn R. Stimson, Scott Rogers, Lary C. Walker, John E. Maggio, Patrick W Mantyh

Research output: Contribution to journalArticle

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Abstract

Alzheimer's disease is characterized by extracellular amyloid deposits in the brain at both vascular sites (cerebrovascular amyloid, CVA) and within the neuropil (plaques). In the present study we demonstrated that brain amyloid of aged non-human primates is efficiently detected by [125I]Aβ in vitro, and assessed the detection of that amyloid in vivo by intravascular infusion of [125I]Aβ. Aged squirrel monkeys (Saimiri sciureus) were anesthetized and infused intra-arterially with [125I]Aβ, and sacrificed 2 h later. Analysis of the anterior frontal and temporal cortices by autoradiography demonstrated that [125I]Aβ was deposited on CVA and that essentially every amyloid deposit which could be detected with thioflavin S or anti-Aβ antibodies was also labeled by [125I]Aβ. These experiments suggest that intravascular infusion of radiolabeled Aβ can be used to detect and image amyloid deposits in the human AD brain.

Original languageEnglish (US)
Pages (from-to)2607-2611
Number of pages5
JournalNeuroReport
Volume7
Issue number15-17
StatePublished - 1996
Externally publishedYes

Fingerprint

Intra Arterial Infusions
Amyloid Plaques
Amyloid
Primates
Saimiri
Brain
Neuropil
Frontal Lobe
Temporal Lobe
Autoradiography
Blood Vessels
Anti-Idiotypic Antibodies
Alzheimer Disease

Keywords

  • β-Amyloid
  • Alzheimer's disease
  • Blood-brain barrier
  • Cerebral amyloid angiopathy
  • Imaging
  • Saimiri sciureus

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Ghilardi, J. R., Catton, M., Stimson, E. R., Rogers, S., Walker, L. C., Maggio, J. E., & Mantyh, P. W. (1996). Intra-arterial infusion of [125I]Aβ1-40 labels amyloid deposits in the aged primate brain in vivo. NeuroReport, 7(15-17), 2607-2611.

Intra-arterial infusion of [125I]Aβ1-40 labels amyloid deposits in the aged primate brain in vivo. / Ghilardi, Joseph R.; Catton, Mark; Stimson, Evelyn R.; Rogers, Scott; Walker, Lary C.; Maggio, John E.; Mantyh, Patrick W.

In: NeuroReport, Vol. 7, No. 15-17, 1996, p. 2607-2611.

Research output: Contribution to journalArticle

Ghilardi, JR, Catton, M, Stimson, ER, Rogers, S, Walker, LC, Maggio, JE & Mantyh, PW 1996, 'Intra-arterial infusion of [125I]Aβ1-40 labels amyloid deposits in the aged primate brain in vivo', NeuroReport, vol. 7, no. 15-17, pp. 2607-2611.
Ghilardi JR, Catton M, Stimson ER, Rogers S, Walker LC, Maggio JE et al. Intra-arterial infusion of [125I]Aβ1-40 labels amyloid deposits in the aged primate brain in vivo. NeuroReport. 1996;7(15-17):2607-2611.
Ghilardi, Joseph R. ; Catton, Mark ; Stimson, Evelyn R. ; Rogers, Scott ; Walker, Lary C. ; Maggio, John E. ; Mantyh, Patrick W. / Intra-arterial infusion of [125I]Aβ1-40 labels amyloid deposits in the aged primate brain in vivo. In: NeuroReport. 1996 ; Vol. 7, No. 15-17. pp. 2607-2611.
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