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Thyroid, Pregnenolone, Progesterone, DHEA, etc
Thyroid, DHEA, Pregnenolone, Progesterone, etc
Dehydroepiandrosterone: a potential therapeutic agent in the treatment and rehabilitation of the traumatically injured patient
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<blockquote data-quote="madman" data-source="post: 156209" data-attributes="member: 13851"><p><strong>Abstract </strong></p><p></p><p>Severe injuries are the major cause of death in those aged under 40, mainly due to road traffic collisions. Endocrine, metabolic and immune pathways respond to limit the tissue damage sustained and initiate wound healing, repair and regeneration mechanisms. However, depending on age and sex, the response to injury and patient prognosis differ significantly. Glucocorticoids are catabolic and immunosuppressive and are produced as part of the stress response to injury leading to an intra-adrenal shift in steroid biosynthesis at the expense of the anabolic and immune enhancing steroid hormone dehydroepiandrosterone (DHEA) and its sulphated metabolite dehydroepiandrosterone sulphate (DHEAS). The balance of these steroids after injury appears to influence outcomes in injured humans, with high cortisol: DHEAS ratio associated with increased morbidity and mortality. Animal models of trauma, sepsis, wound healing, neuroprotection and burns have all shown a reduction in proinflammatory cytokines, improved survival and increased resistance to pathological challenges with DHEA supplementation. Human supplementation studies, which have focused on post-menopausal females, older adults, or adrenal insufficiency have shown that restoring the cortisol: DHEAS ratio improves wound healing, mood, bone remodelling and psychological well-being. Currently, there are no DHEA or DHEAS supplementation studies in trauma patients, but we review here the evidence for this potential therapeutic agent in the treatment and rehabilitation of the severely injured patient.</p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p><strong>Conclusions </strong></p><p></p><p><strong>The endocrine response to traumatic injury has been well studied. However, the role of DHEA and DHEAS in severe clinical trauma is relatively unexplored, with the majority of studies focusing upon the cortisol responses. <span style="color: rgb(184, 49, 47)">This is despite recent data suggesting that it is the cortisol to DHEAS ratio that is the superior prognostic factor for short and long-term outcomes.</span></strong> <strong>Results have indicated that levels of the early sex-steroid hormones, DHEA and DHEAS, are low immediately after injury and remain below normal for over 6 weeks and longer, particularly in the older patient. Animal models and previous reviews have hypothesised that exogenous supplementation of DHEA is warranted. <span style="color: rgb(26, 188, 156)">The immunological, anabolic, neurocognitive, wound and mood enhancing profile reported in animal models, and also some human studies, provide an opportunity to support trauma patient recovery holistically.</span></strong><span style="color: rgb(44, 130, 201)"> <strong>However, there is a need for studies in the trauma population to first identify the dose, route and duration of DHEA supplementation.</strong> </span></p></blockquote><p></p>
[QUOTE="madman, post: 156209, member: 13851"] [B]Abstract [/B] Severe injuries are the major cause of death in those aged under 40, mainly due to road traffic collisions. Endocrine, metabolic and immune pathways respond to limit the tissue damage sustained and initiate wound healing, repair and regeneration mechanisms. However, depending on age and sex, the response to injury and patient prognosis differ significantly. Glucocorticoids are catabolic and immunosuppressive and are produced as part of the stress response to injury leading to an intra-adrenal shift in steroid biosynthesis at the expense of the anabolic and immune enhancing steroid hormone dehydroepiandrosterone (DHEA) and its sulphated metabolite dehydroepiandrosterone sulphate (DHEAS). The balance of these steroids after injury appears to influence outcomes in injured humans, with high cortisol: DHEAS ratio associated with increased morbidity and mortality. Animal models of trauma, sepsis, wound healing, neuroprotection and burns have all shown a reduction in proinflammatory cytokines, improved survival and increased resistance to pathological challenges with DHEA supplementation. Human supplementation studies, which have focused on post-menopausal females, older adults, or adrenal insufficiency have shown that restoring the cortisol: DHEAS ratio improves wound healing, mood, bone remodelling and psychological well-being. Currently, there are no DHEA or DHEAS supplementation studies in trauma patients, but we review here the evidence for this potential therapeutic agent in the treatment and rehabilitation of the severely injured patient. [B]Conclusions [/B] [B]The endocrine response to traumatic injury has been well studied. However, the role of DHEA and DHEAS in severe clinical trauma is relatively unexplored, with the majority of studies focusing upon the cortisol responses. [COLOR=rgb(184, 49, 47)]This is despite recent data suggesting that it is the cortisol to DHEAS ratio that is the superior prognostic factor for short and long-term outcomes.[/COLOR][/B] [B]Results have indicated that levels of the early sex-steroid hormones, DHEA and DHEAS, are low immediately after injury and remain below normal for over 6 weeks and longer, particularly in the older patient. Animal models and previous reviews have hypothesised that exogenous supplementation of DHEA is warranted. [COLOR=rgb(26, 188, 156)]The immunological, anabolic, neurocognitive, wound and mood enhancing profile reported in animal models, and also some human studies, provide an opportunity to support trauma patient recovery holistically.[/COLOR][/B][COLOR=rgb(44, 130, 201)] [B]However, there is a need for studies in the trauma population to first identify the dose, route and duration of DHEA supplementation.[/B] [/COLOR] [/QUOTE]
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Thyroid, Pregnenolone, Progesterone, DHEA, etc
Thyroid, DHEA, Pregnenolone, Progesterone, etc
Dehydroepiandrosterone: a potential therapeutic agent in the treatment and rehabilitation of the traumatically injured patient
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