Evidence map›Paper›PMID 8886408›Full record

ArticleBritish journal of pharmacology1996

Characterization of alpha 1 D-adrenoceptor subtype in rat myocardium, aorta and other tissues.

X F Deng, S Chemtob, D R Varma

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

12 citing papers in PubMed, 82 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

3 authors at 2 institutions in 1 country.

X F DengDepartment of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada.
S Chemtob
D R Varma
McGill University · CACentre Hospitalier Universitaire Sainte-Justine · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. This study was done to characterize the functional role of alpha 1D-adrenoceptors in rat myocardium, aorta, spleen, vas deferens and prostate by use of the selective antagonist BMY 7378. 2. BMY 7378 inhibited [3H]-prazosin binding to aortic membranes with a potency (pKi 9.8 +/- 0.40) approximately 100 fold higher than in right ventricular membranes (pKi 7.47 +/- 0.11) and approximately 1,000 fold higher than that in plasma membranes of the prostate (pKi 6.62 +/- 0.39), vas deferens (pKi 6.67 +/- 0.15), salivary gland (pKi 6.46 +/- 0.38) and liver (6.58 +/- 0.06). 3. BMY 7378 antagonized the positive inotropic effects of phenylephrine (in the presence of 1 microM propranolol) on right ventricles (pA2 7.0 +/- 0.11), left atria (pKB 7.04 +/- 0.18) and papillary muscles (pKB 6.9 +/- 0.1) and inhibited phenylephrine-induced increase in inositol phosphates. 4. BMY 7378 was approximately 100 fold more potent as an antagonist of phenylephrine on aortic strips (pA2 9.0 +/- 0.13) than on vas deferens (pKB 7.17 +/- 0.08) and spleen (pKB 7.16 +/- 0.21); it was ineffective on the prostate. 5. Chloroethylclonidine suppressed the maximal effects of phenylephrine on spleen; 5-methylurapidil antagonized the effects of phenylephrine on aortic strips (pA2 7.98 +/- 0.08), vas deferens (pKB 8.89 +/- 0.07) and prostate (pKB 8.85 +/- 0.21). 6. BMY 7378 caused a dose (0.1-100 nmol kg-1)-dependent decrease in mean blood pressure of urethane-anaesthetized rats and its hypotensive efficacy was equal to that of hexamethonium. 7. The data suggest that alpha 1D-adrenoceptors play a significant role in rat aorta, a minor role in the heart, vas deferens and spleen and virtually no role in the prostate.

Indexed as

Adrenergic alpha-1 Receptor AntagonistsAdrenergic alpha-AntagonistsAnimalsAorta, ThoracicBlood PressureCardiotonic AgentsIn Vitro TechniquesLiverMaleMyocardial ContractionMyocardiumPhenylephrinePiperazinesPrazosinProstateRatsAdra1d protein, ratAdrenergic alpha-1 Receptor AntagonistsAdrenergic alpha-AntagonistsBMY 7378Cardiotonic AgentsPhenylephrinePiperazinesPrazosinReceptors, Adrenergic, alpha-1Tritium

Identifiers

PMID8886408
PMCPMC1915865
OpenAlexW2090722082

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.