ArticleProceedings of the National Academy of Sciences of the United States of America2007
Recurrent axon collaterals underlie facilitating synapses between cerebellar Purkinje cells.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.
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.
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.
Who cites it
49 citing papers in PubMed, 90 citations in OpenAlex.
- Cerebellar pathology contributes to neurodevelopmental deficits in spinal muscular atrophy.Brain : a journal of neurology · 2026Article
- Purkinje Cell Collaterals Preferentially Target a Subtype of Molecular Layer Interneuron.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremor.Journal of biomedical science · 2025Review
- Article
- Climbing fibers provide essential instructive signals for associative learning.Nature neuroscience · 2024Article
- Cerebellum Purkinje cell vulnerability in aged rats with memory impairment.The Journal of comparative neurology · 2024Article
- Kit Ligand and Kit receptor tyrosine kinase sustain synaptic inhibition of Purkinje cells.eLife · 2024Article
- Increased understanding of complex neuronal circuits in the cerebellar cortex.Frontiers in cellular neuroscience · 2024Review
- Cholecystokinin Activation of Cholecystokinin 1 Receptors: a Purkinje Cell Neuroprotective Pathway.Cerebellum (London, England) · 2023Review
- Article
- The Cerebellar Cortex.Annual review of neuroscience · 2022Review
- Article
- ATR regulates neuronal activity by modulating presynaptic firing.Nature communications · 2021Article
- Modulatory Effects of Monoamines and Perineuronal Nets on Output of Cerebellar Purkinje Cells.Frontiers in neural circuits · 2021Review
- Article
- Climbing fiber synapses rapidly and transiently inhibit neighboring Purkinje cells via ephaptic coupling.Nature neuroscience · 2020Article
- Selective loss of the GABAJournal of neurophysiology · 2020Article
- Article
- Influence of spatially segregated IPProceedings of the National Academy of Sciences of the United States of America · 2020Article
- Cytosolic CaCold Spring Harbor perspectives in biology · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Morphological studies have provided ample evidence for synaptic connections between cerebellar Purkinje cells (PCs), but the functional properties of these synapses remain elusive. We report on direct recordings of synaptically connected PCs in mice cerebellar slices. In PCs filled with a fluorescent dye to aid axon visualization and postsynaptic target identification, presynaptic action potentials elicited unitary inhibitory postsynaptic currents in neighboring PCs in 10% of potential connections tested. In 11 pairs, postsynaptic currents had a delay onset of 1.62 +/- 0.16 ms with respect to the presynaptic spike, a 10-90% rise time of 2.20 +/- 0.33 ms, and a monoexponential decay with a time constant of 13.3 +/- 1.7 ms. Average values for peak current and variance-to-mean ratio were 55 +/- 14 and 30 +/- 3 pA, respectively. In contrast to the depressing nature of the synapse between PCs and deep cerebellar nuclei neurons, PC-PC synapses exhibited strong facilitation operating within a time window of a few milliseconds; paired-pulse ratios for 3- and 20-ms intervals were 1.79 +/- 0.18 and 1.01 +/- 0.14, respectively (n = 6). The facilitation is of presynaptic nature because it is accompanied by a decrease in failure rate. Trains of action potentials evoked in presynaptic varicosities volume-averaged calcium transients whose peak increased 1.7-fold as the frequency increased from 50 to 166 Hz. We suggest that PC-PC synapses are tuned for high fidelity of transmission during bursts of PC activity and that their operation in the cerebellar circuit modulates synchronized PC firing.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.