Related Experiment Video
Updated: Jan 16, 2026
09:07
Fluorescent Calcium Imaging and Subsequent In Situ Hybridization for Neuronal Precursor Characterization in Xenopus laevis
Published on: February 18, 2020
8.5K
Intrinsic calcium resonance and its modulation: insights from computational modeling.
Rahul Kumar Rathour1, Hanoch Kaphzan1
1Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.
Frontiers in Computational Neuroscience
|October 6, 2025
Summary
Hippocampal neurons exhibit calcium resonance, a molecular signaling phenomenon distinct from voltage resonance. This finding offers new insights into frequency-based neurostimulation therapies.
Area of Science:
- Neuroscience
- Computational Neuroscience
- Molecular Signaling
Background:
- Hippocampal neurons display membrane potential resonance due to voltage-gated ion channels.
- The propagation of resonance into molecular signaling, like calcium dynamics, remains unexplored.
Purpose of the Study:
- To investigate if resonance extends beyond membrane voltage to calcium dynamics in hippocampal neurons.
- To analyze the influence of specific ion channels on voltage and calcium resonance.
Main Methods:
- Utilized single-compartment and multi-compartmental neuron models.
- Simulated oscillatory intrinsic calcium response dynamics.
- Investigated the effects of T-type calcium, A-type K+, and h-channels.
Main Results:
- T-type calcium channels induced strong calcium resonance, exceeding voltage resonance.
- Calcium resonance frequency was largely independent of conductance magnitude and dissociated from voltage resonance.
- Calcium resonance frequency showed distinct patterns along the somato-apical dendritic axis compared to voltage resonance.
Conclusions:
- Calcium resonance is a distinct phenomenon from voltage resonance in hippocampal neurons.
- Specific ion channels differentially modulate calcium resonance.
- Findings may inform frequency-based neurostimulation therapies like tACS.
Related Concept Videos
01:27Feedback Regulation of Calcium Concentration
3.9K
Calcium is an essential signaling molecule required for various cellular functions. Calcium pumps and ion channels on cell and organellar membranes, such as those on the endoplasmic reticulum (ER), regulate calcium concentrations inside the cell. They remain closed, keeping the cytosolic calcium levels low at a resting state.
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
3.9K
01:16Calmodulin-dependent Signaling
6.0K
Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
6.0K
01:12Double Resonance Techniques: Overview
698
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Spin decoupling is usually achieved by...
698