Evidence map›Paper›PMID 20655299›Full record

ArticleBiochemical pharmacology2010

Modulation of HDL metabolism by the niacin receptor GPR109A in mouse hepatocytes.

Xiaoyu Li, John S Millar, Nicholas Brownell, François Briand, Daniel J Rader

Abstract read
In one paragraph

Article in Biochemical pharmacology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

25 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
  2. Review
  3. Balancing NADCellular and molecular life sciences : CMLS · 2022
    Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Screening of Different Organs of Rats for HCA2 Receptor mRNA.International journal of molecular and cellular medicine · 2014
    Article
  18. Article
  19. 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

5 authors at 2 institutions in 1 country.

Xiaoyu LiInstitute for Translational Medicine and Therapeutics and Cardiovascular Institute, University of Pennsylvania School of Medicine, Philadelphia, 19104, USA.
John S Millar
Nicholas Brownell
François Briand
Daniel J Rader
Translational Therapeutics (United States) · USUniversity of Pennsylvania · US

Funding

The Nicotinic Acid Receptor HM74A in Vascular InjuryP50HL083799 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI FITZGERALD, GARRET A · 2006 to 2010
$15.8M
NHLBI NIH HHS P50 HL083799NHLBI NIH HHS P50-HL-083799
6 · The paper itself

Abstract

The niacin receptor GPR109A is a G(i)-protein-coupled receptor which mediates the effects of niacin on inhibiting intracellular triglyceride lipolysis in adipocytes. However, the role of GPR109A in mediating the effects of niacin on high density lipoprotein (HDL) metabolism is unclear. We found niacin has no effect on HDL-C in GPR109A knockout mice. Furthermore, niacin lowered intracellular cAMP in primary hepatocytes mediated by GPR109A. We used an adeno-associated viral (AAV) serotype 8 vector encoding GPR109A under the control of the hepatic-specific thyroxine-binding globulin promoter to specifically overexpress GPR109A in mouse liver. Plasma HDL-C, hepatic ABCA1 and the HDL cholesterol production rate were significantly reduced in mice overexpressing GPR109A. Overexpression of GPR109A reduced primary hepatocyte free cholesterol efflux to apoA-I; conversely, GPR109A deficient hepatocytes had increased ABCA1-mediated cholesterol efflux. These data support the concept that the HDL-C lowering effect of niacin in wild-type mice is mediated through stimulation of GPR109A in hepatocytes; such an effect then leads to reduced hepatocyte ABCA1 expression and activity, decreased cholesterol efflux to nascent apoA-I, and reduced HDL-C levels. These results indicate that niacin-mediated activation of GP109A in liver lowers ABCA1 expression leading to reduced hepatic cholesterol efflux to HDL.

Indexed as

AnimalsApolipoprotein A-IATP Binding Cassette Transporter 1ATP-Binding Cassette TransportersCells, CulturedCholesterolCholesterol, HDLCyclic AMPFemaleHepatocytesLipopolysaccharidesLipoproteins, HDLMiceMice, Inbred C57BLMice, KnockoutNiacinApolipoprotein A-IATP Binding Cassette Transporter 1ATP-Binding Cassette TransportersCholesterolCholesterol, HDLCyclic AMPHcar2 protein, mouseLipopolysaccharidesLipoproteins, HDLNiacinReceptors, G-Protein-CoupledReceptors, Nicotinic

Identifiers

PMID20655299
PMCPMC3328801
OpenAlexW2050523021

What OpenQuestion holds

Textmetadata
LicenceTDM
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.