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Nathan Goodyear

Hypopituitarism after traumatic brain injury - 0 views

  • PTHP is observed in about 40% of patients with a history of TBI
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    post-traumatic hypopituitarism is found in 40% of those with TBI.  The severity does correlate with the increased likelihood of developing PTHP.  Isolated deficiencies have been found in PTHP.
Nathan Goodyear

Association between premature mortality and hypopituitarism : The Lancet - 0 views

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    sex hormone treatment in those with hypopituitarism is associated with a significant reduction in mortality.
Nathan Goodyear

Hypopituitarism After Multiple Concussions: A Retrospective Case Study in an Adolescent... - 0 views

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    multiple concussions result in hypopituitarism in 14 year old young man.
Nathan Goodyear

High Prevalence of Chronic Pituitary and Target-Organ Hormone Abnormalities after Blast... - 0 views

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    The prevalence of post traumatic hypopituitarism post TBI sits at around 35%.  
Nathan Goodyear

Hypopituitarism after traumatic brain injury. - PubMed - NCBI - 0 views

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    TBI results in isolated or complete pituitary failure (PTHP) in up to 40% of those with TBI.  
Nathan Goodyear

Administration route-dependent effects of estrogens on IGF-I levels during fixed GH rep... - 0 views

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    oral estrogen therapy decreased IGF-1 concentrations in those women taking growth hormone, requiring high dosing of HGH versus that in women using estrogen through a transdermal approach.
Nathan Goodyear

Neuroendocrine disorders after... [J Neurol Neurosurg Psychiatry. 2008] - PubMed - NCBI - 0 views

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    The majority of people with PTHP after TBI remain undiagnosed.  The current thought, is that 25% of those with TBI have at least one pituitary hormone deficiency.  It does not have to be total pituitary failure.  Deficiencies can be isolated.
Nathan Goodyear

Growth hormone, insulin-like growth factor-I and th... [Horm Res. 2001] - PubMed - NCBI - 0 views

  • GH deficiency effectively increases cortisol production in key target tissues including liver and adipose tissue, promoting insulin resistance and visceral adiposity
  • GH/IGF-I modulation of cortisol metabolism may underpin the pathogenesis of common diseases such as central obesity
  • Patients with central obesity but with no evidence of hypopituitarism have relative GH deficiency and it is exciting to speculate that low-dose GH treatment in this group, by inhibiting cortisol generation within omental fat, may offer a novel therapeutic approach.
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    GH plays a key regulating role in obesity.  GH deficiency promotes increased cortisone to cortisol production in adipose tissue and liver.  This promotes insulin resistance and obesity. 
Nathan Goodyear

Effects of Testosterone and Growth Hormone on the Structural and Mechanical Properties ... - 0 views

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    IN men with low Testosterone, Testosterone therapy improved trabecular bone, but not cortical bone.  Growth hormone provided no additional benefit.  This study looked at men with panhypopituitarism.
Nathan Goodyear

Prevalence of chronic hypopituitarism after blast concussion -- Wilkinson et al. 27 (1)... - 1 views

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    One of the first studies to look at PCS found that 42% of soldiers produced abnormally low hormone production following TBI one year after the injury.  This study highlights the potential pituitary dysfunction that can result from TBI.
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