Cardiology

People with atrial fibrillation live longer with exercise

Exercise physiologist Lars Elnan Garnvik and his colleagues in the Cardiac Exercise Research Group (CERG) have investigated how physical activity and good fitness levels are linked to future health risks for men and women ...

Cardiology

Atrial fibrillation among overweight people is not due to fat

In a recently published study, researchers from Aarhus University document that the risk of atrial fibrillation is not linked to the amount of body fat, but instead to large muscle mass, or more precisely, a high fat-free ...

Cardiology

Novel necklace detects abnormal heart rhythm

An ingenious necklace which detects abnormal heart rhythm will be showcased for the first time on EHRA Essentials 4 You, a scientific platform of the European Society of Cardiology (ESC).

Diseases, Conditions, Syndromes

Asthma not common in COVID-19 patients who have died

Asthma is not among the top 10 chronic health problems in people who have died from coronavirus disease 2019 (COVID-19) in New York state, even though many health experts have warned that people with asthma are at increased ...

Cardiology

Levetiracetam may reduce anticoagulation effect of rivaroxaban

Levetiracetam, a commonly used medication to prevent seizures, may reduce the anticoagulation effect of oral rivaroxaban in humans. As such, clinicians should measure direct oral anticoagulant plasma levels during treatment. ...

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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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