Evidence map›Paper›PMID 20805573›Full record

ArticleThe Journal of general physiology2010

Post-tetanic increase in the fast-releasing synaptic vesicle pool at the expense of the slowly releasing pool.

Jae Sung Lee, Won-Kyung Ho, Suk-Ho Lee

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of general physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

36 citing papers in PubMed, 58 citations in OpenAlex.

  1. Trial
  2. Munc13-1 couples DAG and CaScience advances · 2026
    Article
  3. Article
  4. Depression of synaptic outputs by reduction of CaFrontiers in molecular neuroscience · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Neurotransmitter Release Site Replenishment and Presynaptic Plasticity.International journal of molecular sciences · 2020
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Activity-Dependence of Synaptic Vesicle Dynamics.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Jae Sung LeeDepartment of Physiology and Biomembrane Plasticity Research Center, Seoul National University College of Medicine and Neuroscience Research Institute, Seoul 110-799, Korea.
Won-Kyung Ho
Suk-Ho Lee
Seoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Post-tetanic potentiation (PTP) at the calyx of Held synapse is caused by increases not only in release probability (P(r)) but also in the readily releasable pool size estimated from a cumulative plot of excitatory post-synaptic current amplitudes (RRP(cum)), which contribute to the augmentation phase and the late phase of PTP, respectively. The vesicle pool dynamics underlying the latter has not been investigated, because PTP is abolished by presynaptic whole-cell patch clamp. We found that supplement of recombinant calmodulin to the presynaptic pipette solution rescued the increase in the RRP(cum) after high-frequency stimulation (100 Hz for 4-s duration, HFS), but not the increase in P(r). Release-competent synaptic vesicles (SVs) are heterogeneous in their releasing kinetics. To investigate post-tetanic changes of fast and slowly releasing SV pool (FRP and SRP) sizes, we estimated quantal release rates before and 40 s after HFS using the deconvolution method. After HFS, the FRP size increased by 19.1% and the SRP size decreased by 25.4%, whereas the sum of FRP and SRP sizes did not increase. Similar changes in the RRP were induced by a single long depolarizing pulse (100 ms). The post-tetanic complementary changes of FRP and SRP sizes were abolished by inhibitors of myosin II or myosin light chain kinase. The post-tetanic increase in the FRP size coupled to a decrease in the SRP size provides the first line of evidence for the idea that a slowly releasing SV can be converted to a fast releasing one.

Indexed as

Neuronal PlasticitySynaptic TransmissionAnimalsBrain StemCalciumCalmodulinElectric StimulationEnzyme InhibitorsEvoked PotentialsExcitatory Postsynaptic PotentialsIn Vitro TechniquesKineticsMyosin-Light-Chain KinaseMyosin Type IINeuronsPatch-Clamp TechniquesCalciumCalmodulinEnzyme InhibitorsMyosin-Light-Chain KinaseMyosin Type IIRecombinant Proteins

Identifiers

PMID20805573
PMCPMC2931154
OpenAlexW2096639647

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.