Evidence map›Paper›PMID 26132549›Full record

ArticleJournal of visualized experiments : JoVE2015

Two-photon Imaging of Intracellular Ca2+ Handling and Nitric Oxide Production in Endothelial and Smooth Muscle Cells of an Isolated Rat Aorta.

Bradley T Endres, Alexander Staruschenko, Marie Schulte, Aron M Geurts, Oleg Palygin

Open access · bronzeAbstract readVideo-Audio Media
In one paragraph

Article in Journal of visualized experiments : JoVE, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.2field-weighted citation impact, top 44% 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

5 citing papers in PubMed, 5 citations in OpenAlex.

  1. Fluorescent probes for sensing peroxynitrite: biological applications.Redox report : communications in free radical research · 2024
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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

5 authors at 2 institutions in 1 country.

Bradley T EndresDepartments of Physiology, Medical College of Wisconsin; Human and Molecular Genetics Center, Medical College of Wisconsin.
Alexander StaruschenkoDepartments of Physiology, Medical College of Wisconsin; staruschenko@mcw.edu.
Marie SchulteBlood Research Institute of Wisconsin.
Aron M GeurtsDepartments of Physiology, Medical College of Wisconsin; Human and Molecular Genetics Center, Medical College of Wisconsin; Cardiovascular Center, Medical College of Wisconsin.
Oleg PalyginDepartments of Physiology, Medical College of Wisconsin.
Medical College of Wisconsin · USVersiti Blood Center of Wisconsin · US

Funding

Advanced genetic engineering technology developmentDP2OD008396 · OD · MEDICAL COLLEGE OF WISCONSIN · PI GEURTS, ARON M · 2011 to 2011
$2.3M
Mechanisms and relevance of ENaC regulation by EGF and Rac1R01HL108880 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI STARUSCHENKO, ALEXANDER · 2012 to 2016
$1.9M
NHLBI NIH HHS HL108880NHLBI NIH HHS R01 HL108880NIH HHS DP2 OD008396NIH HHS DP2-OD008396
6 · The paper itself

Abstract

Calcium is a very important regulator of many physiological processes in vascular tissues. Most endothelial and smooth muscle functions highly depend on changes in intracellular calcium ([Ca(2+)]i) and nitric oxide (NO). In order to understand how [Ca(2+)]i, NO and downstream molecules are handled by a blood vessel in response to vasoconstrictors and vasodilators, we developed a novel technique that applies calcium-labeling (or NO-labeling) dyes with two photon microscopy to measure calcium handling (or NO production) in isolated blood vessels. Described here is a detailed step-by-step procedure that demonstrates how to isolate an aorta from a rat, label calcium or NO within the endothelial or smooth muscle cells, and image calcium transients (or NO production) using a two photon microscope following physiological or pharmacological stimuli. The benefits of using the method are multi-fold: 1) it is possible to simultaneously measure calcium transients in both endothelial cells and smooth muscle cells in response to different stimuli; 2) it allows one to image endothelial cells and smooth muscle cells in their native setting; 3) this method is very sensitive to intracellular calcium or NO changes and generates high resolution images for precise measurements; and 4) described approach can be applied to the measurement of other molecules, such as reactive oxygen species. In summary, application of two photon laser emission microscopy to monitor calcium transients and NO production in the endothelial and smooth muscle cells of an isolated blood vessel has provided high quality quantitative data and promoted our understanding of the mechanisms regulating vascular function.

Indexed as

AnimalsAortaCalciumEndothelial CellsMicroscopy, Fluorescence, MultiphotonMuscle, SmoothNitric OxideRatsCalciumNitric Oxide

Identifiers

PMID26132549
PMCPMC4545029
OpenAlexW645306540

What OpenQuestion holds

Textmetadata
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.