ArticleArchives of biochemistry and biophysics2007
Voltage-dependent modulation of L-type calcium currents by intracellular magnesium in rat ventricular myocytes.
Article in Archives of biochemistry and biophysics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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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.
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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.
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Who cites it
6 citing papers in PubMed, 12 citations in OpenAlex.
- Magnesium Ions as Modulators of Voltage-Gated and Ligand-Gated Ion Channels in Central Neurons.International journal of molecular sciences · 2025Review
- An Observational Cohort Study of the 2-Month Use of Regional Citrate Anticoagulation in Maintenance Hemodialysis Patients with Cerebral Hemorrhage.Medical science monitor : international medical journal of experimental and clinical research · 2021Observational
- Effects of magnesium supplementation on electrophysiological remodeling of cardiac myocytes in L-NAME induced hypertensive rats.Journal of bioenergetics and biomembranes · 2016Article
- A novel nondevelopmental role of the sax-7/L1CAM cell adhesion molecule in synaptic regulation in Caenorhabditis elegans.Genetics · 2015Article
- Article
- Hypoxia induces an increase in intracellular magnesium via transient receptor potential melastatin 7 (TRPM7) channels in rat hippocampal neurons in vitro.The Journal of biological chemistry · 2011Article
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 1 institution in 1 country.
Funding
Abstract
Effects of changing cytosolic free Mg(2+) concentration on L-type Ca(2+) (I(Ca)) and Ba(2+) currents (I(Ba)) were investigated in rat ventricular myocytes voltage-clamped with pipettes containing 0.2 or 1.8mM [Mg(2+)] ([Mg(2+)](p)) buffered with 30mM citrate and 10mM ATP. Increasing [Mg(2+)](p) from 0.2 to 1.8mM reduced current amplitude and accelerated its decay under a variety of experimental conditions. To investigate the mechanism for these effects, steady-state and instantaneous current-voltage relationships were studied with two-pulse and tail current (I(T)) protocols, respectively. Increasing [Mg(2+)](p) shifted the V(M) for half inactivation by -20mV but dramatically decreased I(Ca) amplitude at all potentials tested, consistent with a change in gating kinetics that decreases channel availability. This conclusion was supported by analysis of I(T) amplitude, but these latter experiments also suggested that, in the millimolar concentration range, [Mg(2+)](p) might also inhibit permeation through open Ca(2+) channels at positive V(M).
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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.