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1.
J Endocrinol Invest ; 40(12): 1365-1372, 2017 Dec.
Article in English | MEDLINE | ID: mdl-28660605

ABSTRACT

AIMS: Acromegaly is caused by a pituitary adenoma that releases excess growth hormone (GH) and a concomitant increase in insulin-like growth factor 1 (IGF-1). Acromegaly results not only in phenotypic changes, but also in neurologic complications as peripheral neuropathy and cognitive dysfunction. This study aimed to compare depressive mood and cognitive function in patients with acromegaly and in healthy controls as well as to determine the factors underlying cognitive dysfunction in the acromegalic patients. MATERIALS AND METHODS: This study included 42 patients with acromegaly that were receiving somatostatin analogue therapy and 44 healthy controls. Memory, attention, visuospatial function, inhibitory function, abstract thinking, verbal fluency, and depressive mood were measured in the patients and controls. RESULTS: Patients with acromegaly had lower learning (p = 0.01), planning (p = 0.03), complex attention and inhibitory function (p = 0.04) scores than the controls. There was no significant difference in depressive mood between the patients and controls (p > 0.05). Gamma knife radiosurgery did not negatively affect cognitive function (p > 0.05). CONCLUSION: The present findings show that acromegaly negatively affects learning, attention, and planning.


Subject(s)
Acromegaly/complications , Adenoma/drug therapy , Cognitive Dysfunction/pathology , Depressive Disorder/pathology , Human Growth Hormone/adverse effects , Pituitary Neoplasms/drug therapy , Acromegaly/chemically induced , Acromegaly/psychology , Adenoma/complications , Adolescent , Adult , Aged , Case-Control Studies , Cognitive Dysfunction/chemically induced , Cognitive Dysfunction/psychology , Depressive Disorder/chemically induced , Depressive Disorder/psychology , Female , Follow-Up Studies , Humans , Insulin-Like Growth Factor I/metabolism , Male , Middle Aged , Pituitary Neoplasms/complications , Prognosis , Young Adult
2.
J Endocrinol Invest ; 40(1): 33-40, 2017 Jan.
Article in English | MEDLINE | ID: mdl-27484912

ABSTRACT

PURPOSE: Acromegaly is known to affect peripheral nervous system (PNS) causing carpal tunnel syndrome (CTS) and polyneuropathy. The frequency of these disorders and the evaluation methods vary among studies. In the present study, we aimed to examine PNS of acromegaly patients under somatostatin analogue (SSA) therapy. METHODS: Forty-eight acromegaly patients (26 F/22 M, 45.58 ± 11.6 years) under SSA treatment and 44 healthy controls (25 F/19 M, 47.46 ± 8.7 years) were assessed by symptom questionnaires, neurologic examination and electrophysiological studies. RESULTS: 87.5 % of the acromegaly patients had at least one abnormal finding regarding PNS. With the incorporation of palm-wrist median nerve conduction velocity method, we detected CTS in 50 % of patients. Polyneuropathy was less frequent (29.2 %). Both conditions were independent from the coexisting diabetes mellitus (p = 0.22 for CTS, p = 0.71 for polyneuropathy). Polyneuropathy but not CTS was more common among biochemically uncontrolled acromegaly patients rather than those under control (p = 0.03; p = 0.68, respectively). CONCLUSION: Our findings emphasize the high prevalence of peripheral nervous system involvement in acromegaly patients under SSA therapy and importance of neurological evaluation of these patients. Early diagnosis and treatment of the disease may reduce the PNS involvement.


Subject(s)
Acromegaly/drug therapy , Carpal Tunnel Syndrome/diagnosis , Peripheral Nervous System/drug effects , Polyneuropathies/diagnosis , Somatostatin/analogs & derivatives , Acromegaly/complications , Adult , Carpal Tunnel Syndrome/chemically induced , Case-Control Studies , Chromatography, High Pressure Liquid , Female , Humans , Male , Middle Aged , Polyneuropathies/chemically induced
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