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MECHANISMS IN ENDOC...
MECHANISMS IN ENDOCRINOLOGY Cushing's syndrome causes irreversible effects on the human brain: a systematic review of structural and functional magnetic resonance imaging studies
- Article/chapterEnglish2015
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Oxford University Press (OUP),2015
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LIBRIS-ID:oai:gup.ub.gu.se/223284
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https://gup.ub.gu.se/publication/223284URI
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https://doi.org/10.1530/eje-14-1101DOI
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Background: Cushing's syndrome (CS) is characterized by excessive exposure to cortisol, and is associated with both metabolic and behavioral abnormalities. Symptoms improve substantially after biochemical cure, but may persist during long-term remission. The causes for persistent morbidity are probably multi-factorial, including a profound effect of cortisol excess on the brain, a major target area for glucocorticoids. Objective: To review publications evaluating brain characteristics in patients with CS using magnetic resonance imaging (MRI). Methods: Systematic review of literature published in PubMed, Embase, Web of Knowledge, and Cochrane databases. Results: Nineteen studies using MRI in patients with CS were selected, including studies in patients with active disease, patients in long-term remission, and longitudinal studies, covering a total of 339 unique patients. Patients with active disease showed smaller hippocampal volumes, enlarged ventricles, and cerebral atrophy as well as alterations in neurochemical concentrations and functional activity. After abrogation of cortisol excess, the reversibility of structural and neurochemical alterations was incomplete after long-term remission. MRI findings were related to clinical characteristics (i.e., cortisol levels, duration of exposure to hypercortisolism, current age, age at diagnosis, and triglyceride levels) and behavioral outcome (i.e., cognitive and emotional functioning, mood, and quality of life). Conclusion: Patients with active CS demonstrate brain abnormalities, which only partly recover after biochemical cure, because these still occur even after long-term remission. CS might be considered as a human model of nature that provides a keyhole perspective of the neurotoxic effects of exogenous glucocorticoids on the brain.
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van Haalen, F. M.
(author)
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Ragnarsson, Oskar,1971Gothenburg University,Göteborgs universitet,Institutionen för medicin,Institute of Medicine(Swepub:gu)xragos
(author)
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Papakokkinou, EleniGothenburg University,Göteborgs universitet,Institutionen för medicin,Institute of Medicine
(author)
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Johannsson, Gudmundur,1960Gothenburg University,Göteborgs universitet,Institutionen för medicin,Institute of Medicine(Swepub:gu)xjgudn
(author)
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Santos, A.
(author)
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Webb, S. M.
(author)
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Biermasz, N. R.
(author)
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van der Wee, N. J. A.
(author)
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Pereira, A. M.
(author)
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Göteborgs universitetInstitutionen för medicin
(creator_code:org_t)
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In:European Journal of Endocrinology: Oxford University Press (OUP)173:10804-46431479-683X
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Andela, C. D.
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van Haalen, F. M ...
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Ragnarsson, Oska ...
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Papakokkinou, El ...
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Johannsson, Gudm ...
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Santos, A.
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Webb, S. M.
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Biermasz, N. R.
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van der Wee, N. ...
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Pereira, A. M.
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- MEDICAL AND HEALTH SCIENCES
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University of Gothenburg