Sex hormonal regulation of cardiac ion channels in drug-induced QT syndromes

Junko Kurokawa, Masami Kodama, Colleen E Clancy, Tetsushi Furukawa

Research output: Contribution to journalReview article

22 Citations (Scopus)

Abstract

Female sex is an independent risk factor for development of torsade de pointes (TdP) arrhythmias not only in congenital long QT syndromes but also in acquired long QT syndromes. Clinical and experimental evidences suggest that the gender differences may be due to, at least in part, gender differences in regulation of rate-corrected QT (QTC) interval between men and women. In adult women, both QTC interval and arrhythmic risks in TdP alter cyclically during menstrual cycle, suggesting a critical role of female sex hormones in cardiac repolarization process. These gender differences in fundamental cardiac electrophysiology result from variable ion channel expression and diverse sex hormonal regulation via long term genomic and acute non-genomic actions, and sex differences in drug responses and metabolisms. In particular, non-genomic actions of testosterone and progesterone on cardiac ion channels are likely to contribute to the gender differences in cardiac repolarization processes. This review summarizes current knowledge on sex hormonal regulation of cardiac ion channels which contribute to cardiac repolarization processes and its implication for gender differences in drug-induced long QT syndromes.

Original languageEnglish (US)
Pages (from-to)23-28
Number of pages6
JournalPharmacology and Therapeutics
Volume168
DOIs
StatePublished - Dec 1 2016

Fingerprint

Long QT Syndrome
Ion Channels
Torsades de Pointes
Cardiac Electrophysiology
Pharmaceutical Preparations
Gonadal Steroid Hormones
Menstrual Cycle
Sex Characteristics
Progesterone
Testosterone
Cardiac Arrhythmias

Keywords

  • Arrhythmias
  • Cardiac repolarization
  • Gender difference
  • Sex hormones

ASJC Scopus subject areas

  • Pharmacology
  • Pharmacology (medical)

Cite this

Sex hormonal regulation of cardiac ion channels in drug-induced QT syndromes. / Kurokawa, Junko; Kodama, Masami; Clancy, Colleen E; Furukawa, Tetsushi.

In: Pharmacology and Therapeutics, Vol. 168, 01.12.2016, p. 23-28.

Research output: Contribution to journalReview article

Kurokawa, Junko ; Kodama, Masami ; Clancy, Colleen E ; Furukawa, Tetsushi. / Sex hormonal regulation of cardiac ion channels in drug-induced QT syndromes. In: Pharmacology and Therapeutics. 2016 ; Vol. 168. pp. 23-28.
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