Evidence map›Paper›PMID 34308945›Full record

ArticleAnalytical methods : advancing methods and applications2021

A microfluidic system for monitoring glucagon secretion from human pancreatic islets of Langerhans.

Wesley J Eaton, Michael G Roper

Open access · hybridAbstract read
In one paragraph

Article in Analytical methods : advancing methods and applications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

7 citing papers in PubMed, 13 citations in OpenAlex.

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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.

Wesley J EatonDepartment of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL 32306, USA. mroper@fsu.edu.
Michael G Roper
Florida State University · US

Funding

Microfluidic Devices to Determine Roles of Islet-Secreted LeptinR01DK080714 · NIDDK · FLORIDA STATE UNIVERSITY · PI ROPER, MICHAEL GABRIEL · 2008 to 2025
$5.5M
Modular monitoring of hormone release from human isletsUC4DK116283 · NIDDK · FLORIDA STATE UNIVERSITY · PI HUGHES, CHRISTOPHER C. W., ROPER, MICHAEL GABRIEL · 2017 to 2017
$2.0M
NIDDK NIH HHS R01 DK080714NIDDK NIH HHS UC4 DK116283
6 · The paper itself

Abstract

Glucagon is a 29-amino acid peptide released from α-cells within pancreatic islets of Langerhans to help raise blood glucose levels. While a plethora of methodologies have been developed for quantitative measurement of insulin released from islets, such methods are not well developed for glucagon despite its importance in blood sugar regulation. In this work, a simple yet robust microfluidic device was developed for holding human pancreatic islets and perfuse them with glucose. The perfusate was collected into 2 min fractions and glucagon quantified using a homogeneous time-resolved Förster resonance energy transfer (TR-FRET) sandwich immunoassay. Simulation of fluid flow within the microfluidic device indicated the device produced low amounts of shear stress on islets, and characterization of the flow with standard glucagon solutions revealed response times within 2 fractions (<4 min). Results with human islets from multiple donors demonstrated either a "burst" of glucagon or a "sustained" glucagon release across the entire period of stimulation. The simplicity, yet robustness, of the device and method is expected to appeal to a number of researchers examining pancreatic islet physiology.

Indexed as

Glucagon-Secreting CellsIslets of LangerhansGlucagonHumansInsulinMicrofluidicsGlucagonInsulin

Identifiers

PMID34308945
PMCPMC8375491
OpenAlexW3186043875

What Socratic holds

Textmetadata
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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 Socratic graph.