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26 - Neuroendocrine Dysfunction Following Concussion: A Missed Opportunity for Enhancing Recovery?

from Part III - Diagnosis and Management of Concussion

Published online by Cambridge University Press:  22 February 2019

Jeff Victoroff
Affiliation:
University of Southern California, Torrance
Erin D. Bigler
Affiliation:
Brigham Young University, Utah
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Summary

There are at least two conceptual frameworks within which to consider the occurrence of neuroendocrine disturbance following typical concussive brain injury (CBI). One: some tissue that orchestrates mammalian endocrine function is lodged in the head. An abrupt rattling blow to the brain might be expected to harm that tissue, or its connections, sometimes. Two: the human stress response is intimately affiliated with and conditioned by neuroendocrine function. As discussed in earlier chapters, the very common occurrence of persistent symptoms more than one year after a single typical CBI is plausibly accounted for, in part, by the risk of a cyclic reaction in which (1) hard-to-measure physical harm to stress management neural tissue (e.g., in the medial temporal lobe), and (2) even harder-to-measure organic change related to psychological stress, might become engaged in a self-reinforcing pattern of cerebral dysfunction. The present chapter, authored by a renowned authority on this subject, explains the state of the art of knowledge regarding neuroendocrine change after CBI. Even more than in the case of sleep disorders, post-CBI endocrine disorders are routinely overlooked. The title of this chapter crystalizes the author’s exhortation: clinicians may often be missing a chance to help.
Type
Chapter
Information
Concussion and Traumatic Encephalopathy
Causes, Diagnosis and Management
, pp. 767 - 779
Publisher: Cambridge University Press
Print publication year: 2019

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References

Cyran, E. Hypophysenschädigung durch Schädelbasisfraktur. Dtsch Med Wschr 1918; 44: 1261.Google Scholar
Escamilla, RF, Lisser, H. Simmonds’ disease. A clinical study with review of the literature; differentiation from anorexia nervosa by statistical analysis of 595 cases, 101 of which were proved pathologically. J Clin Endocrinol Metab 1942; 2: 6596.Google Scholar
Daniel, PM, Prichard, MM, Treip, CS. Traumatic infarction of the anterior lobe of the pituitary gland. Lancet 1959; 2: 927931.Google Scholar
Harper, CG, Doyle, D, Adams, JH, Graham, DI. Analysis of abnormalities in pituitary gland in non-missile head injury: Study of 100 consecutive cases. J Clin Pathol 1986; 39: 769773.Google Scholar
Schneider, HJ, Kreitschmann-Andermahr, I, Ghigo, E, Stalla, GK, Agha, A. Hypothalamopituitary dysfunction following traumatic brain injury and aneurysmal subarachnoid hemorrhage: A systematic review. JAMA 2007; 298: 14291438.CrossRefGoogle ScholarPubMed
Tanriverdi, F, Unluhizarci, K, Kelestimur, F. Pituitary function in subjects with mild traumatic brain injury: A review of literature and proposal of a screening strategy. Pituitary 2010; 13: 146153.Google Scholar
Tanriverdi, F, De Bellis, A, Bizzarro, A, Sinisi, AA, Bellastella, G, Pane, E, Bellastella, A, et al. Antipituitary antibodies after traumatic brain injury: Is head trauma-induced pituitary dysfunction associated with autoimmunity? Eur J Endocrinol 2008; 159: 713.Google Scholar
Salehi, F, Kovacs, K, Scheithauer, BW, Pfeifer, EA, Cusimano, M. Histologic study of the human pituitary gland in acute traumatic brain injury. Brain Inj 2007; 21: 651656.Google Scholar
Crompton, MR. Hypothalamic lesions following closed head injury. Brain 1971; 94: 165172.Google Scholar
Tanriverdi, F, Unluhizarci, K, Kocyigit, I, Tuna, IS, Karaca, Z, Durak, AC, et al. Brief communication: Pituitary volume and function in competing and retired male boxers. Ann Intern Med 2008; 148: 827831.Google Scholar
Aimaretti, G, Ambrosio, MR, Benvenga, S, Borretta, G, De Marinis, L, De Menis, E, Di Somma, C., et al. Hypopituitarism and growth hormone deficiency (GHD) after traumatic brain injury (TBI). Growth Horm IGF Res 2004; 14: S114S117.Google Scholar
Masel, BE. Rehabilitation and hypopituitarism after traumatic brain injury. Growth Horm IGF Res 2004; 14: S108S113.Google Scholar
Aimaretti, G, Ghigo, E. Traumatic brain injury and hypopituitarism. Sci World J 2005; 5: 777781.Google Scholar
Bondanelli, M, Ambrosio, MR, Zatelli, MC, De Marinis, L, degli Uberti, EC. Hypopituitarism after traumatic brain injury. Eur J Endocrinol 2005; 152: 679691.Google Scholar
Dogru, O, Koken, R, Bukulmez, A, Melek, H, Ovali, F, Albayrak, R. Delay in diagnosis of hypopituitarism after traumatic head injury: A case report and review of the literature Neuroendocrinol Lett 2005; 26: 311313.Google ScholarPubMed
Popovic, V. GH deficiency as the most common pituitary defect after TBI: Clinical implications. Pituitary 2005; 8: 239243.Google Scholar
Popovic, V, Aimaretti, G, Casanueva, FF, Ghigo, E. Hypopituitarism following traumatic brain injury. Growth Horm IGF Res 2005; 15: 177184.CrossRefGoogle ScholarPubMed
Samadani, U, Reyes-Moreno, I, Buchfelder, M. Endocrine dysfunction following traumatic brain injury: Mechanisms, pathophysiology and clinical correlations. Acta Neurochir 2005 [Suppl] 93: 121125.Google Scholar
Powner, DJ, Boccalandro, C, Alp, MS, Vollmer, DG. Endocrine failure after traumatic brain injury in adults. Neurocrit Care 2006; 5: 6170.Google Scholar
Urban, RJ. Hypopituitarism after acute brain injury. Growth Horm IGF Res 2006; 16: S25S29.Google Scholar
Behan, LA, Agha, A. Endocrine consequences of adult traumatic brain injury. Horm Res Paediatr 2007; 68: 1821.Google Scholar
Einaudi, S, Bondone, C. The effects of head trauma on hypothalamic–pituitary function in children and adolescents. Curr Opin Pediatr 2007; 19: 465470.Google Scholar
Medic-Stojanoska, M, Pekic, S, Curic, N, Djilas-Ivanovic, D, Popovic, V. Evolving hypopituitarism as a consequence of traumatic brain injury (TBI) in childhood – Call for attention. Endocr 2007; 31: 268271.CrossRefGoogle Scholar
Rothman, MS, Arciniegas, DB, Filley, CM, Wierman, ME. The neuroendocrine effects of traumatic brain injury. J Neuropsychiatry Clin Neurosci 2007; 19: 363372.Google Scholar
Acerini, CL, Tasker, RC. Neuroendocrine consequences of traumatic brain injury. J Pediatr Endocrinol Metab 2008; 21: 611619.Google Scholar
Behan, LA, Phillips, J, Thompson, CJ, Agha, A. Neuroendocrine disorders after traumatic brain injury. J Neurol Neurosurg Psychiatry 2008; 79: 753759.Google Scholar
Klose, M, Feldt-Rasmussen, U. Does the type and severity of brain injury predict hypothalamo–pituitary dysfunction? Does post-traumatic hypopituitarism predict worse outcome? Pituitary 2008; 11: 255261.Google Scholar
Powner, DJ, Boccalandro, C. Adrenal insufficiency following traumatic brain injury in adults. Curr Opin Crit Care 2008; 14: 163166.Google Scholar
Kelestimur, F. Growth hormone deficiency after traumatic brain injury in adults: When to test and how to treat? Pediatr Endocrinol Rev 2009; 6: 534539.Google Scholar
Blair, JC. Prevalence, natural history and consequences of posttraumatic hypopituitarism: A case for endocrine surveillance. Br J Neurosurg 2010; 24: 1017.Google Scholar
Guerrero, AF, Alfonso, A. Traumatic brain injury-related hypopituitarism: A review and recommendations for screening combat veterans. Milit Med 2010; 175: 574580.Google Scholar
Guttikonda, S, Ahmadi, S, Urban, RJ. Pituitary dysfunction after traumatic brain injury: Screening and hormone replacement. Exp Rev Endocrinol Metab 2011; 6: 697703.Google Scholar
Sundaram, NK, Geer, EB, Greenwald, BD. The impact of traumatic brain injury on pituitary function. Endocrinol Metab Clin N Am 2013; 42: 565583.Google Scholar
Richmond, E, Rogol, AD. Traumatic brain injury: Endocrine consequences in children and adults. Endocrine 2014; 45: 38.Google Scholar
Fernandez-Rodriguez, E, Bernabeu, I, Castro, AI, Casanueva, FF. Hypopituitarism after traumatic brain injury. Endocrinol Metab Clin N Am 2015; 44: 151159.Google Scholar
Masel, BE, Urban, RJ. Chronic endocrinopathies in traumatic brain injury disease. Neurotrauma 2015; 32: 19021910.Google Scholar
Paterniti, I, Cordaro, M, Navarra, M, Esposito, E, Cuzzocrea, S. Emerging pharmacotherapy for treatment of traumatic brain injury: Targeting hypopituitarism and inflammation. Exp Opin Emerg Drugs 2015; 20: 583596.Google Scholar
Reifschneider, K, Auble, B, Rose, S. Update of endocrine dysfunction following pediatric traumatic brain injury. J Clin Med 2015; 4: 15361560.CrossRefGoogle ScholarPubMed
Tanriverdi, F, Schneider, HJ, Aimaretti, G, Masel, BE, Casanueva, FF, Kelestimur, F. Pituitary dysfunction after traumatic brain injury: A clinical and pathophysiological approach. Endocrinol Rev 2015; 36: 305342.Google Scholar
Renner, C. Interrelation between neuroendocrine disturbances and medical complications encountered during rehabilitation after TBI. J Clin Med 2015; 22: 18151840.CrossRefGoogle Scholar
Tanriverdi, F, Kelestimur, F. Pituitary dysfunction following traumatic brain injury: Clinical perspectives. Neuropsychiatr Dis Treat 2015; 11: 18351843.Google Scholar
Tritos, NA, Yuen, KC, Kelly, DF, AACE Neuroendocrine and Pituitary Scientific Committee. American Association of Clinical Endocrinologists and American College of Endocrinology disease state clinical review: A neuroendocrine approach to patients with traumatic brain injury. Endocrinol Pract 2015; 21: 823831.Google Scholar
Karaca, Z, Tanriverdi, F, Unluhizarci, K, Kelestimur, F. GH and pituitary hormone alterations after traumatic brain injury. Prog Mol Biol Translat Sci 2016; 138: 167191.Google Scholar
Aimaretti, G, Ambrosio, MR, Di Somma, C, Fusco, A, Cannavò, S, Gasperi, M, Scaroni, C, et al. Traumatic brain injury and subarachnoid haemorrhage are conditions at high risk for hypopituitarism: Screening study at 3 months after the brain injury. Clin Endocrinol 2004; 61: 320326.CrossRefGoogle ScholarPubMed
Aimaretti, G, Ambrosio, MR, Di Somma, C, Gasperi, M, Cannavo, S, Scaroni, C, Fusco, A, et al. Residual pituitary function after brain injury-induced hypopituitarism: A prospective 12-month study. J Clin Endocrinol Metab 2005; 90: 60856092.Google Scholar
Tanriverdi, F, Senyurek, H, Unluhizarci, K, Selcuklu, A, Casanueva, FF, Kelestimur, F. High risk of hypopituitarism after traumatic brain injury: A prospective investigation of anterior pituitary function in the acute phase and 12 months after trauma. J Clin Endocrinol Metab 2006; 91: 21052111.Google Scholar
Englander, J, Bushnik, T, Oggins, J, Katznelson, L. Fatigue after traumatic brain injury: Association with neuroendocrine, sleep, depression and other factors. Brain Inj 2010; 24: 13791388.Google Scholar
Kokshoorn, NE, Smit, JWA, Nieuwlaat, WA, Tiemensma, J, Bisschop, PH, Veldman, RG, Roelfsema, F, et al. Low prevalence of hypopituitarism after traumatic brain injury: A multicenter study. Eur J Endocrinol 2011; 165: 225231.Google Scholar
Moreau, OK, Yollin, E, Merlen, E, Daveluy, W, Marc Rousseaux, M. Lasting pituitary hormone deficiency after traumatic brain injury. J Neurotrauma 2012; 29: 8189.Google Scholar
Klose, M, Stochholm, K, Janukonyt, J, Christensen, LL, Frystyk, J, Andersen, M, Laurberg, P. et al. Prevalence of posttraumatic growth hormone deficiency is highly dependent on the diagnostic set-up: Results from the Danish National Study on Posttraumatic Hypopituitarism. J Clin Endocrinol Metab 2014; 99: 101110.Google Scholar
Lieberman, SA, Oberoi, AL, Gilkison, CR, Masel, BE, Urban, RJ. Prevalence of neuroendocrine dysfunction in patients recovering from traumatic brain injury. J Clin Endocrinol Metab 2001; 86: 27522756.Google Scholar
Giordano, G, Aimaretti, G, Ghigo, E. Variations of pituitary function over time after brain injuries: The lesson from a prospective study. Pituitary 2005; 8: 227231.Google Scholar
Kelly, DF, McArthur, DL, Levin, H, Swimmer, S, Dusick, JR, Cohan, P, Wang, C, et al. Neurobehavioral and quality of life changes associated with growth hormone insufficiency after complicated mild, moderate, or severe traumatic brain injury. J Neurotrauma 2006; 23: 928942.Google Scholar
Bushnik, T, Englander, J, Laurence Katznelson, L. Fatigue after TBI: Association with neuroendocrine abnormalities. Brain Inj 2007; 21(6); 559566,Google Scholar
Schneider, HJ, Saånmann, PG, Schneider, M, Croce, CG, Corneli, G, Sievers, C, Ghigo, E, et al. Pituitary imaging abnormalities in patients with and without hypopituitarism after traumatic brain injury. J Endocrinol Invest 2007; 30: RC9-RC12.Google Scholar
Bavisetty, S, Bavisetty, S, McArthur, DL, Dusick, JR, Wang, C, Pejman, C, Boscardin, WJ, et al. Chronic hypopituitarism after traumatic brain injury: Risk assessment and relationship to outcome. Neurosurg 2008; 62: 10801094.Google Scholar
Kreitschmann-Andermahr, I, Hartmann, Y, Poll, E, Schneider, HJ, Buchfelder, M, Stalla, GK. The German database on hypopituitarism after traumatic brain injury and aneurysmal subarachnoid hemorrhage – Description, objectives and design. Exp Clin Endocrinol Diab 2011; 119: 1520.Google Scholar
Rosario, ER, Aqeel, R, Brown, MA, Sanchez, G, Moore, C, Patterson, D. Hypothalamic–pituitary dysfunction following traumatic brain injury affects functional improvement during acute inpatient rehabilitation. J Head Trauma Rehabil 2008; 28: 390396.Google Scholar
Alavi, SA, Tan, CL, Menon, DK, Simpson, HL, Hutchinson, PJ. Incidence of pituitary dysfunction following traumatic brain injury: A prospective study from a regional neurosurgical centre. Br J Neurosurg 2016; 30: 302306.CrossRefGoogle ScholarPubMed
Kopczak, A, Krewer, C, Schneider, M, Kreitschmann-Andermahr, I, Schneider, HJ, Stalla, GK. The development of neuroendocrine disturbances over time: Longitudinal findings in patients after traumatic brain injury and subarachnoid haemorrhage. Int J Mol Sci 2016; 17: 112.Google Scholar
Kelly, DF, Chaloner, C, Evans, D, Mathews, A, Cohan, P, Wang, C, Swerdloff, R, et al. Metabolic syndrome, and impaired quality of life in retired professional football players: A prospective study. J Neurotrauma 2014; 31: 11611171.Google Scholar
Nourollahi, S, Wille, J, Weiß, V, Wedekind, C, Lippert-Grüner, M. Quality-of-life in patients with post-traumatic hypopituitarism. Brain Inj 2014; 28: 14251429.CrossRefGoogle ScholarPubMed
Aimaretti, G, Corneli, G, Di Somma, C, Baldelli, R, Gasco, V, Rovere, S, Migliaretti, G, et al. Different degrees of GH deficiency evidenced by GHRH+arginine test and IGF-I levels in adults with pituritary disease. J Endocrinol Invest 2005; 28: 247252.Google Scholar
Bondanelli, M, De Marinis, L, Ambrosio, MR, Monesi, M, Valle, D, Zatelli, MC, et al. Occurrence of pituitary dysfunction following traumatic brain injury. J Neurotrauma 2004; 21: 685696.Google Scholar
Kelly, DF, Gonzalo, IT, Cohan, P, Berman, N, Swerdloff, R, Wang, C. Hypopituitarism following traumatic brain injury and aneurysmal subarachnoid hemorrhage: A preliminary report. J Neurosurg 2000; 93: 743752.Google Scholar
Klose, M, Juul, A, Poulsgaard, L, Kosteljanetz, M, Brennum, J, Feldt-Rasmussen, U. Prevalence and predictive factors of post-traumatic hypopituitarism. Clin Endocrinol 2007; 67: 193201.Google Scholar
Klose, M, Juul, A, Struck, J, Morgenthaler, NG, Kosteljanetz, M, Feldt-Rasmussen, U. Acute and long-term pituitary insufficiency in traumatic brain injury: A prospective single-centre study. Clin Endocrinol 2007; 67: 598606.Google Scholar
Krewer, C, Schneider, M, Schneider, HJ, Kreitschmann-Andermahr, I, Buchfelder, M, Faust, M, Berg, C, et al. Neuroendocrine disturbances one to five or more years after traumatic brain injury and aneurysmal subarachnoid hemorrhage: Data from the German database on hypopituitarism. J Neurotrauma 2016; 33: 15441553.Google Scholar
Silva, PPB, Bhatnagar, S, Herman, SD, Zafonte, R, Klibanski, A, Miller, KK, Tritos, NA. Predictors of hypopituitarism in patients with traumatic brain injury. J Neurotrauma 2015; 32: 17891795.Google Scholar
Tanriverdi, F, Ulutabanca, A, Kursad Unluhizarci, K, Selcuklu, A, Casanueva, FF, Kelestimur, F. Three years prospective investigation of anterior pituitary function after traumatic brain injury: A pilot study. Clin Endocrinol 2008; 68: 573579.Google Scholar
Tanriverdi, F, De Bellis, A, Ulutabanca, H, Bizzarro, A, Sinisi, AA, Bellastella, G, Paglionico, VA, et al. A five year prospective investigation of anterior pituitary function after traumatic brain injury: Is hypopituitarism long-term after head trauma associated with autoimmunity? J Neurotrauma 2013; 30: 14261433.Google Scholar
Wachter, D, Gündling, K, Oertel, MF, Stracke, H, Karsten Böker, D-K. Pituitary insufficiency after traumatic brain injury. J Clin Neurosci 2009; 16: 202208.Google Scholar
Wilkinson, CW, Pagulayan, KF, Petrie, EC, Mayer, CL, Colasurdo, EA, Shofer, JB, Hart, KL, et al. High prevalence of chronic pituitary and target-organ hormone abnormalities after blast-related mild traumatic brain injury. Front Neurol 2012; 3: 112.CrossRefGoogle ScholarPubMed
Dimopoulou, I, Tsagarakis, S, Theodorakopoulou, M, Douka, E, Zervou, M, Kouyialis, AT, Thalassinos, N, et al. Endocrine abnormalities in critical care patients with moderate-to-severe head trauma: Incidence, pattern and predisposing factors. Intens Care Med 2004; 30: 10511057.Google Scholar
Renner, C, Hummelsheim, H, Kopczak, A, Steube, D, Schneider, HJ, Schneider, M, Kreitschmann-Andermahr, I, et al. The influence of gender on the injury severity, course and outcome of traumatic brain injury. Brain Inj 2012; 26: 13601371.Google Scholar
Lauzier, F, Turgeon, AF, Boutin, A, Shemilt, M, Cote, I, Lachance, O, Archambault, PM, et al. Clinical outcomes, predictors, and prevalence of anterior pituitary disorders following traumatic brain injury: A systematic review. Crit Care Med 2014; 42: 712721.Google Scholar
GH Research Society. Consensus guidelines for the diagnosis and treatment of growth hormone (GH) deficiency in childhood and adolescence: Summary statement of the GH Research Society. J Clin Endocrinol Metab 2000; 85: 39903993.Google Scholar
Hoeck, HC, Vestergaard, P, Jakobsen, PE, Laurberg, P. Test of growth hormone secretion in adults: Poor reproducibility of the insulin tolerance test. Eur J Endocrinol 1995; 133: 305312.Google Scholar
Riedy, G, Senseney, JS, Liu, W, Ollinger, J, Sham, E, Krapiva, P, Patel, JB, et al. Findings from structural MR imaging in military traumatic brain injury. Radiology 2016; 279: 207215.Google Scholar
Baxter, D, Sharp, DJ, Feeney, C, Papadopoulou, D, Ham, TE, Jilka, S, Hellyer, PJ, et al. Pituitary dysfunction after blast traumatic brain injury: The UK BIOSAP study. Ann Neurol 2013; 74(4): 527536.Google Scholar
Tanriverdi, F, Taheri, S, Ulutabanca, H, Caglayan, AO, Ozkul, Y, Dundar, M, Selcuklu, A, et al. Apolipoprotein E3/E3 genotype decreases the risk of pituitary dysfunction after traumatic brain injury due to various causes: Preliminary data. J Neurotrauma 2008; 25: 10711077.Google Scholar
Tanriverdi, F, Unluhizarci, K, Kocyigit, I, Tuna, IS, Karaca, Z, Durak, AC, et al. Brief communication: Pituitary volume and function in competing and retired male boxers. Ann Intern Med 2008; 148: 827831.Google Scholar
Tanriverdi, F, Unluhizarci, K, Coksevim, B, Selcuklu, A, Casanueva, FF, Kelestimur, F. Kickboxing sport as a new cause of traumatic brain injury-mediated hypopituitarism. Clin Endocrinol 2007; 66: 360366.Google Scholar
Kelestimur, F, Tanriverdi, F, Atmaca, H, Unluhizarci, K, Selcuklu, A, Casanueva, FF. Boxing as a sport activity associated with isolated GH deficiency. J Endocrinol Invest 2004; 27: RC28–RC32.Google Scholar
Heather, NL, Jefferies, C, Hofman, PL, Derraik, JG, Brennan, C, Kelly, P, et al. Permanent hypopituitarism is rare after structural traumatic brain injury in early childhood. J Clin Endocrinol Metab 2012; 97: 599604.Google Scholar
Pickles, W. Disturbances of metabolism associated with head injuries. NEJM 1947; 236: 858862.Google Scholar
Agha, A, Thornton, E, O’Kelly, P, Tormey, W, Phillips, J, Thompson, CJ. Posterior pituitary dysfunction after traumatic brain injury. J Clin Endocrinol Metab 2004; 89: 59875992.Google Scholar
Hannon, MJ, Finucane, FM, Sherlock, M, Agha, A, Thompson, CJ. Disorders of water homeostasis in neurosurgical patients. J Clin Endocrinol Metab 2012; 97: 14231433.Google Scholar
Foley, CM, Wang, DH. Central diabetes insipidus following a sports-related concussion: A case report. Sports Health 2012; 4: 139141.Google Scholar
Jang, SH, Yi, JH, Kim, SH, Kwon, HG. Relation between injury of the hypothalamus and subjective excessive daytime sleepiness in patients with mild traumatic brain injury. J Neurol Neurosurg Psychiatry 2016; 87: 12601261.Google Scholar
Zhou, Y. Abnormal structural and functional hypothalamic connectivity in mild traumatic brain injury. J Magn Reson Imaging 2017; 45: 11051112.Google Scholar
McKee, AC, Daneshvar, DH. The neuropathology of traumatic brain injury. Handb Clin Neurol 2015; 127: 4566.Google Scholar
Agha, A, Phillips, J, O’Kelly, P, Tormey, W, Thompson, CJ. The natural history of post-traumatic hypopituitarism: Implications for assessment and treatment. Am J Med 2005; 118: 1416.Google Scholar
Tanriverdi, F, De Bellis, A, Bizzarro, A, Sinisi, AA, Bellastella, G, Pane, E, et al. Antipituitary antibodies after traumatic brain injury: Is head trauma-induced pituitary dysfunction associated with autoimmunity? Eur J Endocrinol 2008; 159: 713.Google Scholar
Ives, JC, Alderman, M, Stred, SE. Hypopituitarism after multiple concussions: A retrospective case study in an adolescent male. J Athl Train 2007; 42: 431439.Google Scholar
Thomas, JD, Monson, JP. Adult GH deficiency throughout lifetime. Eur J Endocrinol 2009; 161(Suppl 1): S97-S106.Google Scholar
Tanriverdi, F, Suer, C, Yapislar, H, Kocyigit, I, Selcuklu, A, Unluhizarci, K, et al. Growth hormone deficiency due to sports-related head trauma is associated with impaired cognitive performance in amateur boxers and kickboxers as revealed by P300 auditory event-related potentials. Clin Endocrinol 2013; 78: 730737.Google Scholar
Abs, R, Mattsson, AF, Bengtsson, BA, Feldt-Rasmussen, U, Góth, MI, Koltowska-Häggström, M, et al. Isolated growth hormone (GH) deficiency in adult patients: Baseline clinical characteristics and responses to GH replacement in comparison with hypopituitary patients. A sub-analysis of the KIMS database. Growth Horm IGF Res 2005; 15: 349359.Google Scholar
Alexander, GM, Swerdloff, RS, Wang, C, Davidson, T, McDonald, V, Steiner, B, et al. Androgen–behavior correlations in hypogonadal men and eugonadal men. II. Cognitive abilities. Horm Behav 1998; 33: 8594.Google Scholar
Agha, A, Tomlinson, JW, Clark, PM, Holder, G, Stewart, PM. The long-term predictive accuracy of the short synacthen (corticotropin) stimulation test for assessment of the hypothalamic–pituitary–adrenal axis. J Clin Endocrinol Metab 2006; 91: 4347.Google Scholar
McKenna, SP, Doward, LC, Alonso, J, Kohlmann, T, Niero, M, Prieto, M, Wiren, L. The QoL-AGHDA: An instrument for the assessment of quality of life in adults with growth hormone deficiency. Qual Life Res 1999; 8: 373383.Google Scholar

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