Evidence map›Paper›PMID 17919448›Full record

ArticleAnalytical biochemistry2007

Refinement of a radioreceptor binding assay for nicotinic acid adenine dinucleotide phosphate.

Alexander M Lewis, Roser Masgrau, Sridhar R Vasudevan, Michiko Yamasaki, John S O'Neill, Clive Garnham, Kristin James, Andrew Macdonald, Mathias Ziegler, Antony Galione and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Analytical biochemistry, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 19% of its field
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

9 citing papers in PubMed, 24 citations in OpenAlex.

  1. NAADP Receptors.Cold Spring Harbor perspectives in biology · 2019
    Review
  2. Article
  3. Article
  4. NAADP receptors.Cold Spring Harbor perspectives in biology · 2011
    Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
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

11 authors at 2 institutions in 2 countries.

Alexander M LewisDepartment of Pharmacology, University of Oxford, Oxford OX1 3QT, UK.
Roser Masgrau
Sridhar R Vasudevan
Michiko Yamasaki
John S O'Neill
Clive Garnham
Kristin James
Andrew Macdonald
Mathias Ziegler
Antony Galione
Grant C Churchill
University of Oxford · GBUniversity of Bergen · NO

Funding

Biotechnology and Biological Sciences Research Council BB/D012694/1Wellcome Trust 075203
6 · The paper itself

Abstract

The measurement of changes in nicotinic acid adenine dinucleotide phosphate (NAADP) levels in cells has been, and remains, key to the investigation of the functions of NAADP as a Ca2+ -releasing second messenger. Here we provide details of how to isolate NAADP from cells by extraction with perchloric acid and then measure the NAADP using a radioreceptor assay. We demonstrate that NAADP is neither generated nor broken down during sample processing conditions and that radioreceptor assay is highly selective for the detection of NAADP under cell extract conditions. Furthermore, a number of improvements, such as solid-state detection of the radioactivity, are incorporated to enhance the safety of the procedure. Finally, we have developed a new method to prevent the endogenous metabolism of NAADP by chelating Ca2+ with bis-(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid (BAPTA), thereby reducing the difficulty of catching a small transient rise in NAADP levels. In summary, we have refined and improved a method for measuring NAADP levels and presented it in a manner accessible to a wide range of laboratories. It is expected that this will enhance research in the NAADP field.

Indexed as

AnimalsCalciumCalcium SignalingCell ExtractsChelating AgentsChromatography, High Pressure LiquidEgtazic AcidEmbryo, NonmammalianHydrogen-Ion ConcentrationMaleMiceMice, Inbred StrainsMicroinjectionsModels, BiologicalNADPOocytes1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acidCalciumCell ExtractsChelating AgentsEgtazic AcidNAADPNADPOxidantsPerchloratesPhosphorus Radioisotopes

Identifiers

PMID17919448
PMCPMC2518627
OpenAlexW2069836766

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.