Evidence map›Paper›PMID 25886074›Full record

ArticlePloS one2015

Dopamine modulates insulin release and is involved in the survival of rat pancreatic beta cells.

Maria Jose Garcia Barrado, Maria Carmen Iglesias Osma, Enrique J Blanco, Marta Carretero Hernández, Virginia Sánchez Robledo, Leonardo Catalano Iniesta, Sixto Carrero, Jose Carretero

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
4.4field-weighted citation impact, top 6% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

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  17. PET Imaging of Pancreatic Dopamine DJournal of nuclear medicine : official publication, Society of Nuclear Medicine · 2020
    Article
  18. Article
  19. Evaluation of PET Brain Radioligands for Imaging Pancreatic β-Cell Mass: Potential Utility ofJournal of nuclear medicine : official publication, Society of Nuclear Medicine · 2018
    Article
  20. 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

8 authors at 3 institutions in 1 country.

Maria Jose Garcia BarradoDepartment of Physiology and Pharmacology, Faculty of Medicine, University of Salamanca, Salamanca, Spain; Laboratory of Neuroendocrinology, Institute of Neurosciences of Castilla y León, and Laboratory of Neuroendocrinology and Obesity of IBSAL, University of Salamanca, Salamanca, Spain.
Maria Carmen Iglesias OsmaDepartment of Physiology and Pharmacology, Faculty of Medicine, University of Salamanca, Salamanca, Spain; Laboratory of Neuroendocrinology, Institute of Neurosciences of Castilla y León, and Laboratory of Neuroendocrinology and Obesity of IBSAL, University of Salamanca, Salamanca, Spain.
Enrique J BlancoDepartment of Human Anatomy and Histology, Faculty of Medicine, University of Salamanca, Salamanca, Spain; Laboratory of Neuroendocrinology, Institute of Neurosciences of Castilla y León, and Laboratory of Neuroendocrinology and Obesity of IBSAL, University of Salamanca, Salamanca, Spain.
Marta Carretero HernándezDepartment of Human Anatomy and Histology, Faculty of Medicine, University of Salamanca, Salamanca, Spain.
Virginia Sánchez RobledoDepartment of Physiology and Pharmacology, Faculty of Medicine, University of Salamanca, Salamanca, Spain.
Leonardo Catalano IniestaDepartment of Physiology and Pharmacology, Faculty of Medicine, University of Salamanca, Salamanca, Spain.
Sixto CarreroLaboratory of Neuroendocrinology, Institute of Neurosciences of Castilla y León, and Laboratory of Neuroendocrinology and Obesity of IBSAL, University of Salamanca, Salamanca, Spain.
Jose CarreteroDepartment of Human Anatomy and Histology, Faculty of Medicine, University of Salamanca, Salamanca, Spain; Laboratory of Neuroendocrinology, Institute of Neurosciences of Castilla y León, and Laboratory of Neuroendocrinology and Obesity of IBSAL, University of Salamanca, Salamanca, Spain.
Instituto de Estudios de Ciencias de la Salud de Castilla y León · ESUniversidad de Salamanca · ESInstituto de Investigación Biomédica de Salamanca · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The local synthesis of dopamine and its effects on insulin release have been described in isolated islets. Thus, it may be accepted that dopamine exerts an auto-paracrine regulation of insulin secretion from pancreatic beta cells. The aim of the present study is to analyze whether dopamine is a regulator of the proliferation and apoptosis of rat pancreatic beta cells after glucose-stimulated insulin secretion. Glucose stimulated pancreatic islets obtained from male Wistar rats were cultured with 1 or 10 μM dopamine from 1 to 12 h. Insulin secretion was analyzed by RIA. The cellular proliferation rate of pancreatic islets and beta cells was studied with immunocytochemical double labelling for both insulin and PCNA (proliferating cell nuclear antigen), and active caspase-3 was detected to evaluate apoptosis. The secretion of insulin from isolated islets was significantly inhibited (p<0.01), by treatment with 1 and 10 μM dopamine, with no differences between either dose as early as 1 h after treatment. The percentage of insulin-positive cells in the islets decreased significantly (p<0.01) after 1 h of treatment up to 12 h. The proliferation rate of insulin-positive cells in the islets decreased significantly (p<0.01) following treatment with dopamine. Apoptosis in pancreatic islets and beta cells was increased by treatment with 1 and 10 μM dopamine along 12 h. In conclusion, these results suggest that dopamine could modulate the proliferation and apoptosis of pancreatic beta cells and that dopamine may be involved in the maintenance of pancreatic islets.

Indexed as

AnimalsApoptosisCell ProliferationCell SurvivalDopamineGlucoseInsulinInsulin-Secreting CellsInsulin SecretionIslets of LangerhansMaleRatsRats, WistarDopamineGlucoseInsulin

Identifiers

PMID25886074
PMCPMC4401745
OpenAlexW2012540432

What OpenQuestion holds

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LicenceCC BY
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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.