Evidence map›Paper›PMID 10096922›Full record

ArticleBiophysical journal1999

High-speed, random-access fluorescence microscopy: II. Fast quantitative measurements with voltage-sensitive dyes.

A Bullen, P Saggau

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

37 citing papers in PubMed, 112 citations in OpenAlex.

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  15. Action potential propagation in transverse-axial tubular system is impaired in heart failure.Proceedings of the National Academy of Sciences of the United States of America · 2012
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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

2 authors at 1 institution in 1 country.

A BullenDivision of Neuroscience, Baylor College of Medicine, Houston, Texas 77030, USA.
P Saggau
Baylor College of Medicine · US

Funding

CA++ &PRESYNAPTIC MODULATION--SYNAPTIC TRANSMISSIONR01NS033147 · NINDS · BAYLOR COLLEGE OF MEDICINE · PI SAGGAU, PETER · 1995 to 2002
$676k
NINDS NIH HHS NS33147
6 · The paper itself

Abstract

An improved method for making fast quantitative determinations of membrane potential with voltage-sensitive dyes is presented. This method incorporates a high-speed, random-access, laser-scanning scheme (Bullen et al., 1997. Biophys. J. 73:477-491) with simultaneous detection at two emission wavelengths. The basis of this ratiometric approach is the voltage-dependent shift in the emission spectrum of the voltage-sensitive dye di-8-butyl-amino-naphthyl-ethylene-pyridinium-propyl-sulfonate (di-8-ANEPPS). Optical measurements are made at two emission wavelengths, using secondary dichroic beamsplitting and dual photodetectors (<570 nm and >570 nm). Calibration of the ratiometric measurements between signals at these wavelengths was achieved using simultaneous optical and patch-clamp measurements from adjacent points. Data demonstrating the linearity, precision, and accuracy of this technique are presented. Records obtained with this method exhibited a voltage resolution of approximately 5 mV, without any need for temporal or spatial averaging. Ratiometric recordings of action potentials from isolated hippocampal neurons are used to illustrate the usefulness of this approach. This method is unique in that it is the first to allow quantitative determination of dynamic membrane potential changes in a manner optimized for both high spatiotemporal resolution (2 micrometers and <0.5 ms) and voltage discrimination.

Indexed as

Membrane PotentialsAction PotentialsAnimalsBiophysical PhenomenaBiophysicsElectrochemistryEvaluation Studies as TopicFluorescent DyesHippocampusIn Vitro TechniquesLasersMicroscopy, FluorescenceNeuronsPatch-Clamp TechniquesPyridinium CompoundsRadiometry1-(3-sulfonatopropyl)-4-(beta-(2-(di-n-octylamino)-6-naphthyl)vinyl)pyridinium betaineFluorescent DyesPyridinium Compounds

Identifiers

PMID10096922
PMCPMC1300200
OpenAlexW2099386789

What OpenQuestion holds

Texttitle and abstract
measurements read1
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.