Evidence map›Paper›PMID 10578124›Full record

ArticleBritish journal of pharmacology1999

Contractile 5-HT1B receptors in human cerebral arteries: pharmacological characterization and localization with immunocytochemistry.

T Nilsson, J Longmore, D Shaw, I J Olesen, L Edvinsson

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
7.3field-weighted citation impact, top 2% 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

32 citing papers in PubMed, 122 citations in OpenAlex.

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  17. Serotonin and blood pressure regulation.Pharmacological reviews · 2012
    Review
  18. Vascular plasticity in cerebrovascular disorders.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2011
    Review
  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 3 institutions in 3 countries.

T NilssonDivision of Experimental Vascular Research, Department of Internal Medicine, Lund University Hospital, Lund, Sweden.
J Longmore
D Shaw
I J Olesen
L Edvinsson
Lund University · SEMerck & Co., Inc., Rahway, NJ, USA (United States) · USSchools of Visual Arts, The Royal Danish Academy of Fine Arts · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1 The cerebrovascular receptor(s) that mediates 5-hydroxytryptamine (5-HT)-induced vasoconstriction in human cerebral arteries (HCA)has proven difficult to characterize, yet these are essential in migraine. We have examined 5-HT receptor subtype distribution in cerebral blood vessels by immunocytochemistry with antibodies selective for human 5-HT1B and human 5-HT1D receptors and also studied the contractile effects of a range of 5-HT receptor agonists and antagonists in HCA. 2 Immunocytochemistry of cerebral arteries showed dense 5-HT1B receptor immunoreactivity (but no 5-HT1D receptor immunoreactivity) within the smooth muscle wall of the HCA. The endothelial cell layer was well preserved and weak 5-HT1B receptor immunoreactivity was present. 3 Pharmacological experiments on HCA with intact endothelium showed that 5-carboxamidotryptamine was significantly more potent than alpha-methyl-5-HT, 2-methyl-5-HT and 5-HT in causing vasoconstriction. The 5-HT1B/1D receptor agonists naratriptan, sumatriptan, zolmitriptan and 181C91 (N-desmethyl zolmitriptan), all induced equally strong contractions and with similar potency as 5-HT. The maximum contractile response was significantly less for avitriptan and dihydroergotamine. There was a significant correlation between vasoconstrictor potency and 5-HT1B- and 5-HT1D-receptor affinity, but not with 5-HT1A-, 5-ht1F or 5-HT2- receptor affinity. 4 The 5-HT1B/1D-receptor antagonist GR 55562 (10-7 - 10-6 M) inhibited the contractile responses to sumatriptan and 5-CT in a competitive manner with a pKB value for GR 55562 of 7.4. Furthermore, ketanserin (10-7 M), prazosin (10-7 M), and sulpiride (10-7 M) were devoid of significant antagonistic activity of 5-HT-induced contraction in the HCA. 5 The results are compatible with the hypothesis that the 5-HT1B receptors play a major role in 5-HT-induced vasoconstriction in HCA.

Indexed as

Binding, CompetitiveCerebral ArteriesDose-Response Relationship, DrugHumansImmunohistochemistryIn Vitro TechniquesReceptor, Serotonin, 5-HT1BReceptors, SerotoninSerotoninSerotonin AntagonistsSerotonin Receptor AgonistsVasoconstrictionHTR1B protein, humanReceptor, Serotonin, 5-HT1BReceptors, SerotoninSerotoninSerotonin AntagonistsSerotonin Receptor Agonists

Identifiers

PMID10578124
PMCPMC1571736
OpenAlexW1968191966

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.