Evidence map›Paper›PMID 12825831›Full record

ArticleCellular and molecular neurobiology2003

Caffeine analogs: effects on ryanodine-sensitive calcium-release channels and GABAA receptors.

Dan Shi, William L Padgett, John W Daly

Open access · greenAbstract read
In one paragraph

Article in Cellular and molecular neurobiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.5field-weighted citation impact, top 46% 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

16 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. The CaInternational journal of molecular sciences · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. The Aging GABAergic System and Its Nutritional Support.Journal of nutrition and metabolism · 2021
    Review
  8. Review
  9. The Taste of Caffeine.Journal of caffeine research · 2017
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Contribution of transient receptor potential channels to the control of GABA release from dendrites.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
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

3 authors at 2 institutions in 1 country.

Dan ShiLaboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA.
William L Padgett
John W Daly
National Institute of Diabetes and Digestive and Kidney Diseases · USNational Institutes of Health · US

Funding

Structures And Biological Activity Of Alkaloids And Other Natural ProductsZIADK011002 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI GARRAFFO, HUGO M · 2009 to 2010
$948k
Structures And Biological Activity Of Alkaloids And Other Natural ProductsZ01DK011002 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI GARRAFFO, HUGO M · 2002 to 2008
$671k
6 · The paper itself

Abstract

1. Caffeine at 0.3-10 mM enhanced the binding of [3H]ryanodine to calcium-release channels of rabbit muscle sarcoplasmic reticulum. A variety of other xanthines were as efficacious as caffeine or nearly so, but none appeared markedly more potent. 2. Caffeine at 1 mM markedly inhibited binding of [3H]diazepam to GABAA receptors in rat cerebral cortical membranes. 3. Other xanthines also inhibited binding with certain dimethylpropargylxanthines being nearly fivefold more potent than caffeine. 4. Caffeine at 1 mM stimulated binding of [35S]TBPS to GABAA receptors as did certain other xanthines. 5. The dimethylpropargylxanthines had little effect. 1,3-Dipropyl-8-cyclopentylxanthine at 100 microM had no effect on [3H]diazepam binding, but markedly inhibited [35S]TBPS binding. 6. Structure-activity relationships for xanthines do differ for calcium-release channels and and for different sites on GABAA receptors, but no highly selective lead compounds were identified.

Indexed as

AnimalsBinding, CompetitiveBridged Bicyclo Compounds, HeterocyclicCaffeineCalcium SignalingCell MembraneCerebral CortexDiazepamDose-Response Relationship, DrugMaleMiceMuscle, SkeletalNeuronsRabbitsRadioisotopesRadioligand AssayBridged Bicyclo Compounds, HeterocyclicCaffeineDiazepamRadioisotopesReceptors, GABA-ARyanodineRyanodine Receptor Calcium Release Channeltert-butylbicyclophosphorothionateXanthines

Identifiers

PMID12825831
PMCPMC11530164
OpenAlexW1601627343

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.