Evidence map›Paper›PMID 18984964›Full record

ArticleJournal of vascular research2009

Mechanism of ATP-induced local and conducted vasomotor responses in isolated rat cerebral penetrating arterioles.

Hans H Dietrich, Tetsuyoshi Horiuchi, Chuanxi Xiang, Kazuhiro Hongo, J Russell Falck, Ralph G Dacey

Open access · bronzeAbstract read
In one paragraph

Article in Journal of vascular research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
3.5field-weighted citation impact, top 9% 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

37 citing papers in PubMed, 61 citations in OpenAlex.

  1. Trial
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  4. Article
  5. Review
  6. Spontaneous vasomotion propagates along pial arterioles in the awake mouse brain like stimulus-evoked vascular reactivity.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Stimulation-induced increases in cerebral blood flow and local capillary vasoconstriction depend on conducted vascular responses.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  12. Article
  13. The Role of Endothelial CaInternational journal of molecular sciences · 2018
    Review
  14. Article
  15. Conducted dilatation to ATP and KActa physiologica (Oxford, England) · 2017
    Article
  16. Review
  17. Article
  18. Hypoxemia, oxygen content, and the regulation of cerebral blood flow.American journal of physiology. Regulatory, integrative and comparative physiology · 2016
    Review
  19. Article
  20. P2Y receptors in Alzheimer's disease.Biology of the cell · 2015
    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

6 authors at 3 institutions in 2 countries.

Hans H DietrichDepartment of Neurosurgery, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, MO 63110, USA. dietrichh@nsurg.wustl.edu
Tetsuyoshi Horiuchi
Chuanxi Xiang
Kazuhiro Hongo
J Russell Falck
Ralph G Dacey
Washington University in St. Louis · USŌtani University · JPThe University of Texas Southwestern Medical Center · US

Funding

ZINC AND ISCHEMIC BRAIN INJURYP01NS032636 · NINDS · WASHINGTON UNIVERSITY · PI LEE, JIN-MOO · 1995 to 2010
$13.2M
Novel Eicosanoids: Synthesis and FunctionR01GM031278 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI FALCK, JOHN R. · 1985 to 2012
$4.7M
PROPAGATION OF VASOMOTOR RESPONSE IN BRAIN BLOOD VESSELSR01NS030555 · NINDS · WASHINGTON UNIVERSITY · PI DACEY, RALPH G · 1993 to 2008
$2.4M
RADIAL AND LONGITUDINAL MICROVASCULAR COMMUNICATIONR29HL057540 · NHLBI · WASHINGTON UNIVERSITY · PI DIETRICH, HANS H · 1997 to 2000
$102k
NHLBI NIH HHS HL 57540NHLBI NIH HHS R29 HL057540NIGMS NIH HHS GM 31278NIGMS NIH HHS R01 GM031278NINDS NIH HHS NS 30555NINDS NIH HHS P01 NS032636NINDS NIH HHS P01 NS 32636NINDS NIH HHS R01 NS030555
6 · The paper itself

Abstract

backgroundAdenosine triphosphate (ATP), a potent vascular regulator in the cerebral circulation, initiates conducted vasomotor responses which may be impaired after pathological insults. We analyzed the mechanism of ATP-induced local vasomotor responses and their effect on conducted vasomotor responses in rat cerebral penetrating arterioles.

methodsArterioles were cannulated and their internal diameter monitored. Vasomotor responses to ATP were observed in the presence or absence of inhibitors, or after endothelial impairment. Smooth muscle membrane potentials were measured in some vessels.

resultsMicroapplication of ATP produced a biphasic response (constriction followed by dilation), which resulted in conducted dilation preceded by a membrane hyperpolarization. alpha,beta-methylene-ATP or pyridoxal phosphate-6-azophenyl-2',4'-disulfonic acid (PPADS) blunted the ATP-mediated constriction and enhanced local and conducted dilation. N(omega)-monomethyl-L-arginine, endothelial impairment and N-methylsulfonyl-6-(2-propargyloxyphenyl) hexanamide (MS-PPOH) reduced the local dilation caused by ATP. The conducted dilation was attenuated by MS-PPOH and endothelial impairment, but not N(omega)-monomethyl-L-arginine or indomethacin.

conclusionATP-induced conducted dilation is preceded by membrane hyperpolarization. Local ATP induces initial local constriction via smooth-muscle P(2X1) and subsequent dilation via endothelial P(2Y) receptors. Nitric oxide, cytochrome P450 metabolites, and intermediate and large conductance K(Ca) channels mediate dilation caused by ATP. ATP-induced conducted dilation is dependent upon both the endothelium and cytochrome P450 metabolites.

Indexed as

Adenosine TriphosphateAmidesAnimalsArteriolesBiological FactorsCerebral ArteriesCytochrome P-450 Enzyme SystemEndothelium, VascularMaleMembrane PotentialsNitric OxidePotassium Channels, Calcium-ActivatedProstaglandinsPyridoxal PhosphateRatsRats, Sprague-DawleyAdenosine Triphosphatealpha,beta-methyleneadenosine 5'-triphosphateAmidesBiological FactorsCytochrome P-450 Enzyme Systemendothelium-dependent hyperpolarization factorNitric OxideN-methylsulfonyl-6-(2-propargyloxyphenyl)hexanamidePotassium Channels, Calcium-ActivatedProstaglandinsPyridoxal Phosphatepyridoxal phosphate-6-azophenyl-2',4'-disulfonic acidReceptors, Purinergic P2

Identifiers

PMID18984964
PMCPMC2673330
OpenAlexW1996308450

What OpenQuestion holds

Textmetadata
LicenceTDM
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.