Effects of Early Testosterone Gel Administration on Physical Performance in the Critically Ill

Critically ill patients experience major insults that lead to increased protein catabolism. Hypermetabolism occurs early and rapidly during the first week of critical illness to provide amino acids for the production of energy via gluconeogenesis, and also for the synthesis of acute phase proteins and repair of tissue damage. During acute phase, neuroendocrine and inflammatory responses promote protein breakdown and amino acid release. Under stress conditions, protein synthesis cannot match the increased rate of muscle proteolysis because of a state of anabolism resistance, which limits uptake of amino acids into muscles. Hypermetabolism results in a significant loss of lean body mass with an impact on weaning from the ventilator and muscle recovery. Functional disability can be long term sometimes with no full return to normal. In critically ill patients, severe and persistent testosterone deficiency is very common and is observed early after Intensive Care Unit (ICU) admission. This acquired hypogonadism promotes the persistent loss of skeletal muscle protein and is related to poor outcome. Administration of testosterone induces skeletal muscle fiber hypertrophy and decreases protein breakdown in healthy young men. It has been repeatedly shown that testosterone treatment enhances muscle mass and strength in hypogonadal men and women and can improve physical performance. Testosterone administration in burned patients reduces protein breakdown and increases protein synthe…

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Lise LACLAUTRE  ·  +33473754963  ·  promo_interne_drci@chu-clermontferrand.fr

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