Publications by authors named "Qi-na Zhou"
Article Synopsis
- Ventricular arrhythmia is a major risk factor for sudden cardiac death following a heart attack, prompting research into treatments targeting autonomic nervous system dysfunction, primarily the sympathetic nerve.
- A study using beagles showed that renal denervation significantly reduced ventricular arrhythmia and sympathetic nerve activity after inducing myocardial infarction, compared to sham procedures.
- Results indicated that renal denervation not only improved heart rhythm stability but also reversed harmful nerve remodeling in the heart, potentially lowering the risk of sudden cardiac death.
BACKGROUND Recent research suggests that abnormal Ca2+ handling plays a role in the occurrence and maintenance of atrial fibrillation (AF). Therefore, Ca2+ release and ingestion depend on properties of the ryanodine receptor (RyR) and sarcoplasmic reticulum Ca2+ATPase2a (SERCA2a). This study aimed to detect whether SERCA2a gene overexpression has a preventive effect on atrial fibrillation caused by rapid pacing right atrium.
View Article and Find Full Text PDF[Metal stress-induced arrhythmia and thoracic spinal cord 1-5 nerve remodeling and myocardial electrophysiological remodeling in rats].
Zhonghua Xin Xue Guan Bing Za Zhi
December 2011
Objective: The study aimed to investigate the relationship between arrhythmia occurrence and nerve remodeling of thoracic spinal cord 1-5 nerves as well as myocardial electrophysiological remodeling in a metal stress rat model.
Methods: Thirty SD rats (weight 180-250 g) were randomly divided into control group (n = 10), stress group (n = 10) and fluoxetine group (n = 10, 10 mg/kg i.p.
Objective: To explore the efficacy of sequential ablation of epicardial fat pad on inducibility of atrial fibrillation (AF) evoked by stimulating vagus trunk.
Methods: Eighteen adult mongrel dogs were randomly divided into 2 groups (n = 9 each): Group A underwent pre-ablation of sinus-atrial node fad pad (SANFP) and subsequent ablation of atria-ventricular node fad pad (AVNFP). Group B underwent pre-ablation of AVNFP and subsequent ablation of SANFP.
[Impact of magnetic field exposure on cardiac autonomic tone and inducibility of atrial fibrillation in dogs].
Zhonghua Xin Xue Guan Bing Za Zhi
July 2011
Objective: To observe the maximal heart rate changes, atrioventricular (A-V) conduction block and atrial fibrillation (AF) inducibility in dogs with vagosympathetic trunk exposed to electromagnetic fields (EMFs).
Methods: The vagosympathetic trunk of adult dogs was separated and exposed to EMFs 0.043 kHz (2.