Pulmonary abnormalities on high-resolution computed tomography in ankylosing spondylitis: relationship to disease duration and pulmonary function testing.

The aim of this study was to identify the pulmonary abnormalities on high-resolution computed tomography (HRCT) in patients with ankylosing spondylitis (AS) and to examine the relationship with the duration of disease and pulmonary function test (PFT) results. Twenty male AS patients with a mean age of 37.1 ± 9.

Free radical changes in rat muscle tissue after exercise.

Intense exercise accompanied by a manifold increase in oxygen utilization over resting conditions has been shown to elevate the probability of the appearance of free radicals. One of the effects of free radicals appears to be the peroxidation of cell membrane lipids resulting in malondialdehyde formation, which is detrimental to cell function. A common method for the measurement of malondialdehyde involves a reaction with thiobarbituric acid.