Evidence map›Paper›PMID 17179945›Full record

ArticleBritish journal of pharmacology2007

Identification of an antagonist that selectively blocks the activity of prostamides (prostaglandin-ethanolamides) in the feline iris.

D F Woodward, A H Krauss, J W Wang, C E Protzman, A L Nieves, Y Liang, Y Donde, R M Burk, K Landsverk, C Struble

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

21 citing papers in PubMed, 61 citations in OpenAlex.

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  12. Cellular basis for bimatoprost effects on human conventional outflow.Investigative ophthalmology & visual science · 2010
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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

10 authors at 2 institutions in 1 country.

D F WoodwardDepartment of Biological Sciences, Allergan, Inc., Irvine, CA 92612, USA. woodward_david@allergan.com
A H Krauss
J W Wang
C E Protzman
A L Nieves
Y Liang
Y Donde
R M Burk
K Landsverk
C Struble
Allergan (United States) · USCovance (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe prostamides (prostaglandin-ethanolamides) and prostaglandin (PG) glyceryl esters are biosynthesized by COX-2 from the respective endocannabinoids anandamide and 2-arachidonyl glycerol. Agonist studies suggest that their pharmacologies are unique and unrelated to prostanoid receptors. This concept was further investigated using antagonists. EXPERIMENTAL APPROACH: The isolated feline iris was used as a key preparation, where prostanoid FP receptors and prostamide activity co-exist. Activity at human recombinant FP and other prostanoid receptors was determined using stable transfectants. KEY

resultsIn the feline iris, AGN 204396 produced a rightward shift of the dose-response curves for prostamide F2alpha and the prostamide F2alpha analog bimatoprost but did not block the effects of PGF2alpha and synthetic FP receptor agonists. Studies on human recombinant prostanoid receptors confirmed that AGN 204396 did not behave as a prostanoid FP receptor antagonist. AGN 204396 exhibited no antagonism at DP and EP1-4, but was a highly effective TP receptor antagonist. Contrary to expectation, the FP receptor antagonist AL-8810 efficaciously contracted the cat iris. AGN 204396 did not affect AL-8810 induced contractions, demonstrating that AL-8810 and AGN 204396 are pharmacologically distinct. Unlike AL-8810, the ethylamide derivate of AL-8810 was not an agonist. Al-8810 did not block prostamide F2alpha activity. Finally, AGN 204396 did not block PGE2-glyceryl ester activity. CONCLUSIONS AND IMPLICATIONS: The ability of AGN 204396 to selectively block prostamide responses suggests the existence of prostamide sensitive receptors as entities distinct from receptors recognizing PGF2alpha and PGE2-glyceryl ester.

Indexed as

AnimalsBridged Bicyclo Compounds, HeterocyclicCatsDinoprostDinoprostoneDose-Response Relationship, DrugIn Vitro TechniquesIrisOxazolesReceptors, ProstaglandinRecombinant ProteinsAGN 204396AL 8810AL 8810 ethylamideBridged Bicyclo Compounds, HeterocyclicDinoprostDinoprostoneOxazolesprostaglandin E2 glyceryl esterReceptors, ProstaglandinRecombinant Proteins

Identifiers

PMID17179945
PMCPMC2013905
OpenAlexW1993823998

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.