Along with cellulose, one of the imperative constituents of natural cellulosic fibers is hemicellulose and is the second most abundant family of naturally occurring polymers (Thakur and Singha, 2013 and Thakur, 2013). Hemicelluloses are buildup of a combination of 5- and 6-ring carbon ring sugars (Fig. 2 b).
In addition to harm to the heart from heart disease or hypertension, medications and other elements can cause paroxysmal AFib, including: 1  binge drinking (4 to 5 beverages within 2 hours) 2  stimulant medications and drugs (ex. methylphenidate, pseudoephridrine, drug) 3  nicotine. 4  caffeine. 5  low potassium (electrolyte imbalance)
Paroxysmal Atrial Fibrillation. In paroxysmal (par-ok-SIZ-mal) atrial fibrillation (AF), the faulty electrical signals and rapid heart rate begin suddenly and then stop on their own.