Evidence map›Paper›PMID 19807070›Full record

ArticleJournal of the American Chemical Society2009

Design, synthesis, and testing of difluoroboron-derivatized curcumins as near-infrared probes for in vivo detection of amyloid-beta deposits.

Chongzhao Ran, Xiaoyin Xu, Scott B Raymond, Brian J Ferrara, Krista Neal, Brian J Bacskai, Zdravka Medarova, Anna Moore

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 124 papers.

0numbers the graph read from it
0cells of the map it votes in
124citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

124 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. AI-Driven Acceleration of Fluorescence Probe Discovery.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  7. Article
  8. Highly sensitive chemiluminescence imaging of misfolded proteins in neurodegenerative models.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Bioimaging and Sensing Properties of Curcumin and Derivatives.International journal of molecular sciences · 2025
    Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article

64 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Chongzhao RanMolecular Imaging Laboratory, MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Room 2301, Building 149, Charlestown, Massachusetts 02129, USA.
Xiaoyin Xu
Scott B Raymond
Brian J Ferrara
Krista Neal
Brian J Bacskai
Zdravka Medarova
Anna Moore

Funding

Multiphoton microscopy for in vivo neural imaging.R01EB000768 · NIBIB · MASSACHUSETTS GENERAL HOSPITAL · PI BACSKAI, BRIAN J · 2002 to 2015
$5.0M
Non-invasive optical imaging of neuropathology in vivoR01AG026240 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI BACSKAI, BRIAN J · 2006 to 2010
$4.1M
In vivo Image Guided Cancer TherapyR21CA113672 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI MOORE, ANNA · 2006 to 2007
$360k
NCI NIH HHS CA113672NIA NIH HHS AG026240NIA NIH HHS R01 AG026240NIBIB NIH HHS R01 EB000768
6 · The paper itself

Abstract

Amyloid-beta (Abeta) deposits have been identified as key players in the progression of Alzheimer's disease (AD). Recent evidence indicates that the deposits probably precede and induce the neuronal atrophy. Therefore, methods that enable monitoring the pathology before clinical symptoms are observed would be beneficial for early AD detection. Here, we report the design, synthesis, and testing of a curcumin-derivatized near-infrared (NIR) probe, CRANAD-2. Upon interacting with Abeta aggregates, CRANAD-2 undergoes a range of changes, which include a 70-fold fluorescence intensity increase, a 90 nm blue shift (from 805 to 715 nm), and a large increase in quantum yield. Moreover, this probe also shows a high affinity for Abeta aggregates (K(d) = 38.0 nM), a reasonable log P value (log P = 3), considerable stability in serum, and a weak interaction with albumin. After intravenous injection of this probe, 19-month-old Tg2576 mice exhibited significantly higher relative signal than that of the control mice over the same period of time. In summary, CRANAD-2 meets all the requirements for a NIR contrast agent for the detection of Abeta plaques both in vitro and in vivo. Our data point toward the feasibility of monitoring the progress of the disease by NIR imaging with CRANAD-2. In addition, we believe that our probe could be potentially used as a tool for drug screening.

Indexed as

Amyloid beta-PeptidesAnimalsBoron CompoundsCurcuminFluorine CompoundsMiceMolecular ProbesMolecular StructureSpectroscopy, Near-InfraredAmyloid beta-PeptidesBoron CompoundsCurcuminFluorine CompoundsMolecular Probes

Identifiers

PMID19807070
PMCPMC2784241

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.