Evidence map›Paper›PMID 9697868›Full record

ArticleNeuron1998

Compartmentalization of calcium extrusion mechanisms in the outer and inner segments of photoreceptors.

D Krizaj, D R Copenhagen

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

65 citing papers in PubMed, 137 citations in OpenAlex.

  1. Article
  2. Review
  3. TRPV4 and chloride channels mediate volume sensing in trabecular meshwork cells.American journal of physiology. Cell physiology · 2024
    Article
  4. The Structural and Functional Integrity of Rod Photoreceptor Ribbon Synapses Depends on Redundant Actions of Dynamins 1 and 3.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  5. Review
  6. Review
  7. Article
  8. Redefining the role of CaCell death & disease · 2022
    Article
  9. Transmission at rod and cone ribbon synapses in the retina.Pflugers Archiv : European journal of physiology · 2021
    Review
  10. Review
  11. Article
  12. Article
  13. Calcium flares and compartmentalization in rod photoreceptors.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Elevated energy requirement of cone photoreceptors.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  15. Membrane conductances of mouse cone photoreceptors.The Journal of general physiology · 2020
    Article
  16. Increasing CaCell death and differentiation · 2020
    Article
  17. Article
  18. Article
  19. Review
  20. Melanopsin expression in the cornea.Visual neuroscience · 2018
    Article

5 more citing papers are in PubMed but not listed here.

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.

D KrizajDepartment of Ophthalmology, University of California School of Medicine, San Francisco 94143, USA.
D R Copenhagen
University of California, San Francisco · US

Funding

REGULATION OF NEUROTRANSMISSION IN THE RETINAR01EY013870 · NEI · UNIVERSITY OF UTAH · PI KRIZAJ, DAVID · 2002 to 2011
$2.7M
NEI NIH HHS R01 EY013870
6 · The paper itself

Abstract

Differential localization of calcium channel subtypes in divergent regions of individual neurons strongly suggests that calcium signaling and regulation could be compartmentalized. Region-specific expression of calcium extrusion transporters would serve also to partition calcium regulation within single cells. Little is known about selective localization of the calcium extrusion transporters, nor has compartmentalized calcium regulation within single neurons been studied in detail. Sensory neurons provide an experimentally tractable preparation to investigate this functional compartmentalization. We studied calcium regulation in the outer segment (OS) and inner segment/synaptic terminal (IS/ST) regions of rods and cones. We report these areas can function as separate compartments. Moreover, ionic, pharmacological, and immunolocalization results show that a Ca-ATPase, but not the Na+/K+, Ca2+ exchanger found in the OSs, extrudes calcium from the IS/ST region. The compartmentalization of calcium regulation in the photoreceptor outer and inner segments implies that transduction and synaptic signaling can be independently controlled. Similar separation of calcium-dependent functions is likely to apply in many types of neuron.

Indexed as

AnimalsCalciumCalcium-Transporting ATPasesCalmodulinCaudataCell MembraneHydrogen-Ion ConcentrationIntracellular MembranesLanthanumRetinal Rod Photoreceptor CellsRod Cell Outer SegmentSodium-Calcium ExchangerTissue DistributionCalciumCalcium-Transporting ATPasesCalmodulinLanthanumSodium-Calcium Exchanger

Identifiers

PMID9697868
PMCPMC2954769
OpenAlexW1970412310

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.