Evidence map›Paper›PMID 12529409›Full record

ArticleMolecular and cellular biology2003

Targeted disruption of the mouse Mel(1b) melatonin receptor.

Xiaowei Jin, Charlotte von Gall, Rick L Pieschl, Valentin K Gribkoff, Jorg H Stehle, Steven M Reppert, David R Weaver

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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

75 citing papers in PubMed, 1 synthesis or guideline pooled it, 237 citations in OpenAlex.

  1. Pooled it
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  7. Evaluation of the efficacy and safety of ramelteon in subjects with chronic insomnia.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2007
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  9. Review
  10. Article
  11. Review
  12. Review
  13. Novel Therapeutics for Treating Sleep Disorders: New Perspectives onInternational journal of molecular sciences · 2022
    Article
  14. Review
  15. Evidence for the Benefits of Melatonin in Cardiovascular Disease.Frontiers in cardiovascular medicine · 2022
    Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. Article

15 more citing papers are in PubMed but not listed here.

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

7 authors at 5 institutions in 2 countries.

Xiaowei JinLaboratory of Developmental Chronobiology, MassGeneral Hospital for Children, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.
Charlotte von Gall
Rick L Pieschl
Valentin K Gribkoff
Jorg H Stehle
Steven M Reppert
David R Weaver
Bristol-Myers Squibb (United States) · USUniversity of Massachusetts Chan Medical School · USGoethe University Frankfurt · DEHarvard University · USMassachusetts General Hospital · US

Funding

TRANSPLANTATION ANALYSIS OF CIRCADIAN RHYTHMS AND AGINGP01AG009975 · NIA · BRIGHAM AND WOMEN'S HOSPITAL · PI BUXTON, ORFEU M · 1991 to 2018
$23.1M
MOLECULAR MECHANISMS OF CIRCADIAN ACTION OF MELATONINF32MH012067 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI JIN, XIAOWEI · 1998 to 1999
–
MELATONIN--SITES AND MECHANISMS OF HORMONE ACTIONR01DK042125 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI REPPERT, STEVEN M. · 1990 to 1999
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NIA NIH HHS AG09975NIA NIH HHS P01 AG009975NIDDK NIH HHS DK42125NIMH NIH HHS F32 MH012067NIMH NIH HHS F32 MH12067
6 · The paper itself

Abstract

Two high-affinity, G protein-coupled melatonin receptor subtypes have been identified in mammals. Targeted disruption of the Mel(1a) melatonin receptor prevents some, but not all, responses to the hormone, suggesting functional redundancy among receptor subtypes (Liu et al., Neuron 19:91-102, 1997). In the present work, the mouse Mel(1b) melatonin receptor cDNA was isolated and characterized, and the gene has been disrupted. The cDNA encodes a receptor with high affinity for melatonin and a pharmacological profile consistent with its assignment as encoding a melatonin receptor. Mice with targeted disruption of the Mel(1b) receptor have no obvious circadian phenotype. Melatonin suppressed multiunit electrical activity in the suprachiasmatic nucleus (SCN) in Mel(1b) receptor-deficient mice as effectively as in wild-type controls. The neuropeptide, pituitary adenylyl cyclase activating peptide, increases the level of phosphorylated cyclic AMP response element binding protein (CREB) in SCN slices, and melatonin reduces this effect. The Mel(1a) receptor subtype mediates this inhibitory response at moderate ligand concentrations (1 nM). A residual response apparent in Mel(1a) receptor-deficient C3H mice at higher melatonin concentrations (100 nM) is absent in Mel(1a)-Mel(1b) double-mutant mice, indicating that the Mel(1b) receptor mediates this effect of melatonin. These data indicate that there is a limited functional redundancy between the receptor subtypes in the SCN. Mice with targeted disruption of melatonin receptor subtypes will allow molecular dissection of other melatonin receptor-mediated responses.

Indexed as

Amino Acid SequenceAnimalsBase SequenceCyclic AMP Response Element-Binding ProteinDNA, ComplementaryGene TargetingMelatoninMiceMice, Inbred C3HMice, Inbred C57BLMice, KnockoutMolecular Sequence DataPhenotypePhosphorylationReceptors, Cell SurfaceReceptors, Cytoplasmic and NuclearCyclic AMP Response Element-Binding ProteinDNA, ComplementaryMelatoninReceptors, Cell SurfaceReceptors, Cytoplasmic and NuclearReceptors, Melatonin

Identifiers

PMID12529409
PMCPMC140714
OpenAlexW2114707992

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.