Evidence map›Paper›PMID 18405894›Full record

ArticleExperimental cell research2008

Evidence for AMPK-dependent regulation of exocytosis of lipoproteins in a model liver cell line.

Livia Puljak, Vinay Parameswara, Svjetlana Dolovcak, Shar L Waldrop, Daniel Emmett, Victoria Esser, J Gregory Fitz, Gordan Kilic

Open access · greenAbstract read
In one paragraph

Article in Experimental cell research, 2008. 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
1.2field-weighted citation impact, top 21% 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, 29 citations in OpenAlex.

  1. Trial
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  7. MicroRNAs in cardiometabolic disease.Current atherosclerosis reports · 2011
    Review
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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

8 authors at 1 institution in 1 country.

Livia PuljakDepartment of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, Dallas TX 75390-9151, USA.
Vinay Parameswara
Svjetlana Dolovcak
Shar L Waldrop
Daniel Emmett
Victoria Esser
J Gregory Fitz
Gordan Kilic
The University of Texas Southwestern Medical Center · US

Funding

Regulation of Secretion by Bile Duct Epithelial CellsR37DK046082 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI FITZ, JOHN GREGORY · 2002 to 2012
$3.3M
MECHANISMS OF HEPATIC ELECTROLYTE TRANSPORTR01DK043278 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI FITZ, JOHN GREGORY · 1991 to 2007
$2.3M
REGULATION OF SECRETION BY BILE DUCT EPITHELIAL CELLSR01DK046082 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI FITZ, JOHN G. · 1993 to 2001
$383k
NIDDK NIH HHS DK43278NIDDK NIH HHS DK46082NIDDK NIH HHS R01 DK043278NIDDK NIH HHS R01 DK046082NIDDK NIH HHS R37 DK046082
6 · The paper itself

Abstract

5'-AMP-activated kinase (AMPK) plays a key role in the regulation of cellular lipid metabolism. The contribution of vesicular exocytosis to this regulation is not known. Accordingly, we studied the effects of AMPK on exocytosis and intracellular lipid content in a model liver cell line. Activation of AMPK by metformin or 5-aminoimidazole-4-carboxamide-1-beta-d-ribofuranoside (AICAR) increased the rates of constitutive exocytosis by about 2-fold. Stimulation of exocytosis by AMPK occurred within minutes, and persisted after overnight exposure to metformin or AICAR. Activation of AMPK also increased the amount of triacylglycerol (TG) and apolipoprotein B (apoB) secreted from lipid-loaded cells. These effects were accompanied by a decrease in the intracellular lipid content indicating that exocytosis of lipoproteins was involved in these lipid-lowering effects. While AMPK increased the rates of fatty acid oxidation (FAO), the lipid-lowering effects were quantitatively significant even after inhibition of FAO with R-etomoxir. These results suggest that hepatic AMPK stimulates constitutive exocytosis of lipoproteins, which may function in parallel with FAO to regulate intracellular lipid content.

Indexed as

Aminoimidazole CarboxamideAmiodaroneAMP-Activated Protein KinasesAnimalsApolipoproteins BCell LineEnzyme InhibitorsEpoxy CompoundsExocytosisFatty AcidsHepatocytesHumansHypoglycemic AgentsLipid MetabolismLovastatinMetforminAICA ribonucleotideAminoimidazole CarboxamideAmiodaroneAMP-Activated Protein KinasesApolipoproteins BEnzyme InhibitorsEpoxy CompoundsetomoxirFatty AcidsHypoglycemic AgentsLovastatinMetforminmevastatinMultienzyme ComplexesProtein Serine-Threonine KinasesRibonucleotidesSterol Regulatory Element Binding Protein 1Triglycerides

Identifiers

PMID18405894
PMCPMC2699465
OpenAlexW2093820252

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.