Evidence map›Paper›PMID 9882743›Full record

ArticleThe Journal of physiology1999

Reversible and irreversible intracellular Ca2+ spiking in single isolated human platelets.

J F Hussain, M P Mahaut-Smith

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.4field-weighted citation impact, top 44% 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

6 citing papers in PubMed, 21 citations in OpenAlex.

  1. Review
  2. Review
  3. Fungal Chitin Reduces Platelet Activation Mediated via TLR8 Stimulation.Frontiers in cellular and infection microbiology · 2019
    Article
  4. Exposure of phosphatidylserine on the cell surface.Cell death and differentiation · 2016
    Review
  5. Article
  6. 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

2 authors at 1 institution in 1 country.

J F HussainDepartment of Physiology, Downing Street, Cambridge CB2 3EG, UK.
M P Mahaut-Smith
University of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. We have developed conditions that permit long duration recordings of [Ca2+]i in single, isolated human platelets and studied the reversibility of Ca2+i spiking following activation by physiological and artificial stimuli. 2. Fura-2-loaded platelets were immobilized at the tip of a saline-filled glass pipette using gentle suction. 'Contact' activation of Ca2+i spiking was observed in a proportion (11 %) of platelets, which continued for the duration of each recording (range 8-45 min). 3. Platelets that displayed constant, resting Ca2+i levels were used to test the effects of agonists. ADP (10 microM) increased [Ca2+]i in the form of either one to two spikes followed by an elevated plateau level (60 % of cells) or multiple Ca2+ spikes of irregular amplitude (40 % of cells). ADP-induced Ca2+i mobilization was completely reversible and repeatable. 4. Thrombin (1 u ml-1) evoked Ca2+i spiking in the majority (88 %) of platelets tested, which was not inhibited by perfusion of agonist-free saline throughout the recording period (range 8-67 min). 5. The clear difference in the reversibility of activation by different stimuli may reflect the distinct roles of individual agonists in haemostasis and have important consequences in the design of treatments for thrombosis.

Indexed as

Adenosine DiphosphateBlood PlateletsCalcium Channel AgonistsCalcium Channel BlockersCalcium ChannelsCalcium SignalingElectric StimulationElectrophysiologyFluorescent DyesFura-2HumansIn Vitro TechniquesMembrane PotentialsPatch-Clamp TechniquesThrombinAdenosine DiphosphateCalcium Channel AgonistsCalcium Channel BlockersCalcium ChannelsFluorescent DyesFura-2Thrombin

Identifiers

PMID9882743
PMCPMC2269102
OpenAlexW1969920403

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.