Effect of Propranolol and Its Dosages on Maternal-Fetal Heart Rates Coupling in Pregnant Mice and Fetuses

Ahsan H. Khandoker, Chihiro Yoshida, Yoshiyuki Kasahara, Kiyoe Funamoto, Yoshitaka Kimura

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


The aim of this preliminary study is to look how maternal-fetal heart rates and their beat to beat coupling patterns (λ are influenced by injection of β blocker(propranolol) into pregnant mice. Total of 9 fetuses from 9 pregnant female mice type of C57BL/6J were divided into three groups [control (3), β blockade (3) (4 mg), β blockade (3) (10 mg)]. On 17.5-day beat-to-beat maternal and fetal heart rates (MHR and FHR) were simultaneously measured for 20 minutes (10 minutes under normal condition and 10 minutes with saline (to control group) and propranolol (to the β blockade groups) solution by using an invasive maternal and fetal electrocardiogram techniques with needle electrodes. Results show that FHR decrease (p<0.05 for 10 mg) and maternal-fetal heart rate coupling (λ) patterns increases for 10 mg; p<0.05 and no significant changes for 4mg] followed by propranolol infusion (no change with saline). These changes could be caused by propranolol (dosage of 10 mg) which could have transmitted through the placental barrier. The presented results allow for assessment of the dosages of β adrenergic control of maternal and fetal heart, which will further enhance the value of the mouse as a model of heritable human pregnancy and hypertension.

Original languageEnglish
Title of host publication2019 Computing in Cardiology, CinC 2019
PublisherIEEE Computer Society
ISBN (Electronic)9781728169361
Publication statusPublished - 2019 Sept
Event2019 Computing in Cardiology, CinC 2019 - Singapore, Singapore
Duration: 2019 Sept 82019 Sept 11

Publication series

NameComputing in Cardiology
ISSN (Print)2325-8861
ISSN (Electronic)2325-887X


Conference2019 Computing in Cardiology, CinC 2019


Dive into the research topics of 'Effect of Propranolol and Its Dosages on Maternal-Fetal Heart Rates Coupling in Pregnant Mice and Fetuses'. Together they form a unique fingerprint.

Cite this