Search Results - "Peters, Colin"
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Cardiac Pacemaker Activity and Aging
Published in Annual review of physiology (10-02-2020)“…A progressive decline in maximum heart rate (mHR) is a fundamental aspect of aging in humans and other mammals. This decrease in mHR is independent of gender,…”
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Depolarization of the conductance-voltage relationship in the NaV1.5 mutant, E1784K, is due to altered fast inactivation
Published in PloS one (12-09-2017)“…E1784K is the most common mixed long QT syndrome/Brugada syndrome mutant in the cardiac voltage-gated sodium channel NaV1.5. E1784K shifts the midpoint of the…”
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Calcium inhibits the funny current (If)in sinoatrial myocytes
Published in Biophysical journal (10-02-2023)Get full text
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Functional characterization of a metal ion coordination site in HCN4
Published in Biophysical journal (10-02-2023)Get full text
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Defining the interactions between HCN4 and the regulatory proteins IRAG and LRMP
Published in Biophysical journal (10-02-2023)Get full text
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Bidirectional flow of the funny current (If) during the pacemaking cycle in murine sinoatrial node myocytes
Published in Proceedings of the National Academy of Sciences - PNAS (13-07-2021)“…Sinoatrial node myocytes (SAMs) act as cardiac pacemaker cells by firing spontaneous action potentials (APs) that initiate each heartbeat. The funny current…”
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Regulation of HCN Channels by Protein Interactions
Published in Frontiers in physiology (20-06-2022)“…Hyperpolarization-activated, cyclic nucleotide-sensitive (HCN) channels are key regulators of subthreshold membrane potentials in excitable cells. The four…”
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Isoform-specific regulation of HCN4 channels by a family of endoplasmic reticulum proteins
Published in Proceedings of the National Academy of Sciences - PNAS (28-07-2020)“…Ion channels in excitable cells function in macromolecular complexes in which auxiliary proteinsmodulate the biophysical properties of the pore-forming…”
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The funny current If is essential for the fight-or-flight response in cardiac pacemaker cells
Published in The Journal of general physiology (05-12-2022)“…The sympathetic nervous system fight-or-flight response is characterized by a rapid increase in heart rate, which is mediated by an increase in the spontaneous…”
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Differential thermosensitivity in mixed syndrome cardiac sodium channel mutants
Published in The Journal of physiology (15-09-2015)“…Key points The E1784K mixed syndrome mutant of the cardiac voltage‐gated sodium channel, NaV1.5, responds differently to temperature changes compared to the…”
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E1784K, the most common Brugada syndrome and long-QT syndrome type 3 mutant, disrupts sodium channel inactivation through two separate mechanisms
Published in The Journal of general physiology (07-09-2020)“…Inheritable and de novo variants in the cardiac voltage-gated sodium channel, Nav1.5, are responsible for both long-QT syndrome type 3 (LQT3) and Brugada…”
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Intracellular Na + Modulates Pacemaking Activity in Murine Sinoatrial Node Myocytes: An In Silico Analysis
Published in International journal of molecular sciences (26-05-2021)“…: The mechanisms underlying dysfunction in the sinoatrial node (SAN), the heart's primary pacemaker, are incompletely understood. Electrical and Ca -handling…”
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LRMP inhibits cAMP potentiation of HCN4 channels by disrupting intramolecular signal transduction
Published in eLife (23-04-2024)“…Lymphoid restricted membrane protein (LRMP) is a specific regulator of the hyperpolarization-activated cyclic nucleotide-sensitive isoform 4 (HCN4) channel…”
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Triggers for arrhythmogenesis in the Brugada and long QT 3 syndromes
Published in Progress in biophysics and molecular biology (01-01-2016)“…Cardiac arrhythmias are a prevalent cause of morbidity and mortality. In many cases, inheritable mutations in the genes encoding cardiac ion channels are the…”
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Case studies in neuroscience: a novel amino acid duplication in the NH2-terminus of the brain sodium channel NaV1.1 underlying Dravet syndrome
Published in Journal of neurophysiology (01-11-2019)“…Dravet syndrome is a severe form of childhood epilepsy characterized by frequent temperature-sensitive seizures and delays in cognitive development. In the…”
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Case studies in neuroscience: a novel amino acid duplication in the NH 2 -terminus of the brain sodium channel Na V 1.1 underlying Dravet syndrome
Published in Journal of neurophysiology (01-11-2019)“…Dravet syndrome is a severe form of childhood epilepsy characterized by frequent temperature-sensitive seizures and delays in cognitive development. In the…”
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A Mixed Periodic Paralysis & Myotonia Mutant, P1158S, Imparts pH-Sensitivity in Skeletal Muscle Voltage-gated Sodium Channels
Published in Scientific reports (19-04-2018)“…Skeletal muscle channelopathies, many of which are inherited as autosomal dominant mutations, include myotonia and periodic paralysis. Myotonia is defined by a…”
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Functional Genomics of Epilepsy and Associated Neurodevelopmental Disorders Using Simple Animal Models: From Genes, Molecules to Brain Networks
Published in Frontiers in cellular neuroscience (13-12-2019)“…The genetic diagnosis of patients with seizure disorders has been improved significantly by the development of affordable next-generation sequencing…”
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The L1624Q Variant in SCN1A Causes Familial Epilepsy Through a Mixed Gain and Loss of Channel Function
Published in Frontiers in pharmacology (02-12-2021)“…Variants of the gene encoding the neuronal voltage-gated sodium channel Na 1.1 cause over 85% of all cases of Dravet syndrome, a severe and often…”
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Effects of acidosis on neuronal voltage-gated sodium channels: Nav1.1 and Nav1.3
Published in Channels (Austin, Tex.) (01-01-2018)“…Voltage-gated sodium channels are key contributors to membrane excitability. These channels are expressed in a tissue-specific manner. Mutations and modulation…”
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