Evidence map›Paper›PMID 29750497›Full record

ArticleACS chemical neuroscience2018

Improved Synthesis of Caged Glutamate and Caging Each Functional Group.

Charitha Guruge, Yannick P Ouedraogo, Richard L Comitz, Jingxuan Ma, Attila Losonczy, Nasri Nesnas

Abstract read
In one paragraph

Article in ACS chemical neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Highly efficient CaOrganic & biomolecular chemistry · 2024
    Article
  2. Blue and Green Light Responsive Caged Glutamate.Journal of photochemistry and photobiology. A, Chemistry · 2024
    Article
  3. Review
  4. Article
  5. Caged Proline in Photoinitiated Organocatalysis.The Journal of organic chemistry · 2019
    Article
  6. Review
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

6 authors.

Charitha GurugeDepartment of Chemistry , Florida Institute of Technology , Melbourne , Florida 32901 , United States.ORCID 0000-0003-4405-2905
Yannick P OuedraogoDepartment of Chemistry , Florida Institute of Technology , Melbourne , Florida 32901 , United States.
Richard L ComitzDepartment of Chemistry , Florida Institute of Technology , Melbourne , Florida 32901 , United States.
Jingxuan MaDepartment of Chemistry , Florida Institute of Technology , Melbourne , Florida 32901 , United States.
Attila LosonczyDepartment of Neuroscience , Columbia University , New York , New York 10032 , United States.ORCID 0000-0002-7064-0252
Nasri NesnasDepartment of Chemistry , Florida Institute of Technology , Melbourne , Florida 32901 , United States.ORCID 0000-0003-3511-940X

Funding

Development of Light Triggered Molecular Tools Critical for Understanding the Brain's NetworkR15GM112119 · NIGMS · FLORIDA INSTITUTE OF TECHNOLOGY · PI NESNAS, NASRI · 2015 to 2020
$692k
NIGMS NIH HHS R15 GM112119
6 · The paper itself

Abstract

Glutamate is an excitatory neurotransmitter that controls numerous pathways in the brain. Neuroscientists make use of photoremovable protecting groups, also known as cages, to release glutamate with precise spatial and temporal control. Various cage designs have been developed and among the most effective has been the nitroindolinyl caging of glutamate. We, hereby, report an improved synthesis of one of the current leading molecules of caged glutamate, 4-carboxymethoxy-5,7-dinitroindolinyl glutamate (CDNI-Glu), which possesses efficiencies with the highest reported quantum yield of at least 0.5. We present the shortest route, to date, for the synthesis of CDNI-Glu in 4 steps, with a total reaction time of 40 h and an overall yield of 20%. We also caged glutamate at the other two functional groups, thereby, introducing two new cage designs: α-CDNI-Glu and N-CDNI-Glu. We included a study of their photocleavage properties using UV-vis, NMR, as well as a physiology experiment of a two-photon uncaging of CDNI-Glu in acute hippocampal brain slices. The newly introduced cage designs may have the potential to minimize the interference that CDNI-Glu has with the GABA

Indexed as

AnimalsGABA-A Receptor AntagonistsGlutamatesGlutamic AcidHippocampusIndolesMagnetic Resonance SpectroscopyMicePatch-Clamp TechniquesPhotolysisPhotonsReceptors, GABA-AGABA-A Receptor AntagonistsGlutamatesGlutamic AcidIndolesReceptors, GABA-Acaged GlucagesCDNI-GluN-CDNI-Gluphotoprotecting groupstwo-photonα-CDNI-Glu

Identifiers

PMID29750497
PMCPMC6294478

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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.