Hormones (Athens)
March 2014
Objective: Minimally invasive operations, such as laparoscopic cholecystectomy and adrenalectomy, result in a more rapid recovery of normal function, less physiological disturbances and less stress to the organism than similar open operations. The purpose of this study was to determine the stress response associated with minimally invasive abdominal surgery compared to conventional small or large incision laparotomy.
Methods: We compared the responses of the stress hormones cortisol and the catecholamines adrenaline and noradrenaline to elective conventional and laparoscopic cholecystectomy and unilateral adrenalectomy in male pigs.
Background: Although it has been suggested that the hypometabolic state is associated with a decrease in oxidative stress, literature data are controversial, revealing an individuality of oxidant status in relation to tissue properties and responsiveness. Hypothyroidism has profound direct and indirect actions on the vascular system, inducing characteristic hemodynamic changes while the aorta represents an important determinant of vascular performance. This study aims to examine the oxidant status on the aorta in chronic experimental hypothyroidism.
View Article and Find Full Text PDFBackground: Hyperthyroidism is associated with increased oxidative stress and oxygen free radical production. Oxygen free radicals are implicated in several signalling pathways leading to vascular pathology. The present study evaluates the extent of aortic oxidative stress in experimental hyperthyroidism.
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