Evidence map›Paper›PMID 24473440›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2014

Long-term niacin treatment induces insulin resistance and adrenergic responsiveness in adipocytes by adaptive downregulation of phosphodiesterase 3B.

Mattijs M Heemskerk, Sjoerd A A van den Berg, Amanda C M Pronk, Jan-Bert van Klinken, Mariëtte R Boon, Louis M Havekes, Patrick C N Rensen, Ko Willems van Dijk, Vanessa van Harmelen

Abstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 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

9 authors at 1 institution in 1 country.

Mattijs M HeemskerkDepartment of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands;
Sjoerd A A van den Berg
Amanda C M Pronk
Jan-Bert van Klinken
Mariëtte R Boon
Louis M Havekes
Patrick C N Rensen
Ko Willems van Dijk
Vanessa van Harmelen
Leiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The lipid-lowering effect of niacin has been attributed to the inhibition of cAMP production in adipocytes, thereby inhibiting intracellular lipolysis and release of nonesterified fatty acids (NEFA) to the circulation. However, long-term niacin treatment leads to a normalization of plasma NEFA levels and induces insulin resistance, for which the underlying mechanisms are poorly understood. The current study addressed the effects of long-term niacin treatment on insulin-mediated inhibition of adipocyte lipolysis and focused on the regulation of cAMP levels. APOE*3-Leiden.CETP transgenic mice treated with niacin for 15 wk were subjected to an insulin tolerance test and showed whole body insulin resistance. Similarly, adipocytes isolated from niacin-treated mice were insulin resistant and, interestingly, exhibited an increased response to cAMP stimulation by 8Br-cAMP, β1- and β2-adrenergic stimulation. Gene expression analysis of the insulin and β-adrenergic pathways in adipose tissue indicated that all genes were downregulated, including the gene encoding the cAMP-degrading enzyme phosphodiesterase 3B (PDE3B). In line with this, we showed that insulin induced a lower PDE3B response in adipocytes isolated from niacin-treated mice. Inhibiting PDE3B with cilostazol increased lipolytic responsiveness to cAMP stimulation in adipocytes. These data show that long-term niacin treatment leads to a downregulation of PDE3B in adipocytes, which could explain part of the observed insulin resistance and the increased responsiveness to cAMP stimulation.

Indexed as

Insulin ResistanceAdaptation, PhysiologicalAdipocytesAdrenergic AgentsAnimalsCells, CulturedCyclic Nucleotide Phosphodiesterases, Type 3Down-RegulationFemaleHypolipidemic AgentsLipolysisMiceMice, TransgenicNiacinReceptors, AdrenergicTime FactorsAdrenergic AgentsCyclic Nucleotide Phosphodiesterases, Type 3Hypolipidemic AgentsNiacinReceptors, Adrenergicadenosine 3′,5′-cyclic monophosphateadipose tissuelipolysisphosphodiesterases

Identifiers

PMID24473440
PMCPMC3962609
OpenAlexW2085954268

What OpenQuestion holds

Texttitle and abstract
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.