Cardiology

Burnout linked with irregular heartbeat

Feeling excessively tired, devoid of energy, demoralised, and irritable? You may have burnout, a syndrome associated with a potentially deadly heart rhythm disturbance. That's the conclusion of a large study published today ...

Diseases, Conditions, Syndromes

Heart disease linked to a higher risk of kidney failure

New research indicates that cardiovascular diseases—including heart failure, atrial fibrillation, coronary heart disease, and stroke—are each linked with a higher risk of developing kidney failure. The findings, which ...

Cardiology

One way to help ease A-fib: give up drinking

(HealthDay)—If you have atrial fibrillation (a-fib)—a potentially dangerous irregular heart rhythm—giving up alcohol could ease your symptoms.

Cardiology

Personalized medicine for atrial fibrillation

Patients with atrial fibrillation, the most frequent cardiac arrhythmia, are closer to accessing personalized medicine. This is the claim of a new study led by Dr. David Filgueiras, of the Centro Nacional de Investigaciones ...

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Fibril

Fibril is a fine fiber approximately 1 nm in diameter.[citation needed]

Cytoplasmic fibrils are observed on the protoplasmic cylinders found in most spirochetal species, although no function of the cytoplasmic fibrils has been ascribed.[citation needed]

Polysaccharides, the union of several linked monosaccharides, sometimes serve as a structural compound. Cellulose, the most abundant organic compound on Earth[citation needed], forms cable-like strings, known as fibrils in the tough walls that enclose plant cells. While cellulose is a compilation of glucose monomers, they form unbranched, long strands instead of coils like starch or glycogen. These are arranged in parallel lines which form on top of each other in an intricate layer through hydrogen bonding.[citation needed]

Insect flight muscle is said to be fibrillar, in that it contracts in response to being stretched by antagonistic muscle, so as to allow very rapid (up to 1000 Hz) contraction.[citation needed]

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