Evidence map›Paper›PMID 12518063›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

Store-operated calcium channel regulates the chemotactic behavior of ascidian sperm.

Manabu Yoshida, Makiko Ishikawa, Hiroko Izumi, Rosaria De Santis, Masaaki Morisawa

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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

25 citing papers in PubMed.

  1. Article
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  3. Review
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  8. Article
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  11. CaScientific reports · 2018
    Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. T-type calcium channel blockers as neuroprotective agents.Pflugers Archiv : European journal of physiology · 2014
    Review
  17. Review
  18. Article
  19. Article
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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

5 authors.

Manabu YoshidaMisaki Marine Biological Station, Graduate School of Science, University of Tokyo, Miura, Kanagawa 238-0225, Japan. myoshida@ims.u-tokyo.ac.jp
Makiko Ishikawa
Hiroko Izumi
Rosaria De Santis
Masaaki Morisawa

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The sperm-activating and -attracting factor released from the eggs of the ascidians Ciona intestinalis and Ciona savignyi requires extracellular Ca(2+) for activating sperm motility and eliciting chemotactic behavior of the activated sperm toward the egg. Here, we show that modulators of the store-operated Ca(2+) channel, SK&F96365, Ni(2+), 2-aminoethoxydiphenylborane, and thapsigargin inhibit the chemotactic behavior of the ascidian sperm; on the other hand, blockers of voltage-dependent Ca(2+) channels did not inhibit the chemotaxis, even though they inhibited the sperm activation operated by voltage-dependent Ca(2+) channels. The blockers of store-operated Ca(2+) channels also inhibited the asymmetrical flagellar beating and turning movements of the ascidian sperm, which are typical signs of sperm chemotaxis. Depletion of internal Ca(2+) stores by thapsigargin induced capacitative Ca(2+) entry into the sperm, which was blocked by SK&F96365. These results suggest that the intracellular Ca(2+) concentration increase through the store-operated Ca(2+) channels induces asymmetrical flagellar movements to establish the chemotactic behavior of the sperm.

Indexed as

AnimalsCalcium Channel BlockersCalcium ChannelsCalcium SignalingChemotaxisCiona intestinalisMaleNickelNifedipineSpermatozoaSperm MotilityUrochordataCalcium Channel BlockersCalcium ChannelsNickelNifedipine

Identifiers

PMID12518063
PMCPMC140910

What OpenQuestion holds

Textmetadata
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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.