In some cases, though, the cause may be thyroid, hepatitis, infection, or cancer
J Biol Chem 278:2224322249
The retro-orbital injection of the construct into Mecp2 G311A mutant mice successfully restored MeCP2 protein expression and function, prolonged survival, and improved respiratory function of the mice
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These include: (1, 2) Cardiac arrhythmia Atrial fibrillation Atrioventricular block (first, second or third degree) Damage of the heart tissue due to aging A congenital heart defect Myocarditis Endocarditis A complication of heart surgery Sleep apnea Rheumatic fever Lupus Lyme disease Typhoid fever Very high blood potassium level Hypothyroidism Hypothermia Toxic levels of certain narcotics Side effect of medications including: Propranolol Atenolol Metoprolol Sotalol Verapamil Dilitazem Risk Factors Recognized risk factors of bradycardia include: (4) Heart damage Coronary artery disease High blood pressure Diabetes Renal insufficiency Smoking Recreational drug use Heavy alcohol use Psychological stress Anxiety Diagnosis Bradycardia is diagnosed through a combination of physical examinations, health history, and tests including an electrocardiogram (ECG)