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Endocrine studies in stroke patients
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine. (Department of Internal Medicine)
1989 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

There are a number of links between the endocrine system and the nervous system. In this study, the impact of ischemic stroke on the endocrine system was investigated. Elderly volunteers were studied because data regarding the influence of advanced age on endocrine parameters were lacking.

Only small differences in pituitary-thyroid and pituitary-adrenal hormone axes were found between two groups of elderly patients, 60 and 80 years of age. The 80-year-old age group had a lower thyrotropin response to thyrotropin releasing hormone (TRH) and a decline in dopamine excretion.

Patients with acute ischemic stroke showed a pronounced hypercortisolism studied by the dexamethasone test and urine free cortisol measurements. In multiple regression analyses, postdexamethasone cortisol levels were positively correlated to proximity of the lesion to the frontal pole of the brain and disorientation. Urine cortisol levels were predicted by limb paresis, disorientation and body temperature. High cortisol excretion was associated with a worse functional outcome. Norepinephrine excretion was correlated to urine cortisol levels and to motor impairment. Patients with acute stroke had elevated free thyroxin indices. A paradoxical growth hormone response to TRH was found in the majority of stroke patients. In a multiple regression model disorientation was negatively correlated to thyrotropin response after TRH and positively correlated to prolactin response. Growth hormone response to TRH was associated with extensive paresis.

In a cohort study diabetic and non-diabetic patients were prospectively studied after an initial stroke. Diabetes mellitus adversely influenced survival, the risk for a recurrent stroke and myocardial infarction.

Place, publisher, year, edition, pages
Umeå: Umeå universitet , 1989. , 66 p.
Series
Umeå University medical dissertations, ISSN 0346-6612 ; 260
Keyword [en]
Cerebrovascular disorders, elderly, pituitary gland, thyroid gland, adrenal glands, hydrocortisone, dexamethasone suppression test, cortisol excretion, diabetes mellitus, prognosis
National Category
Clinical Medicine
Identifiers
URN: urn:nbn:se:umu:diva-101772ISBN: 91-7174-452-5 (print)OAI: oai:DiVA.org:umu-101772DiVA: diva2:802122
Public defence
1990-01-19, sal B, 9 tr, Tandläkarhögskolan, Umeå universitet, Umeå, 09:00
Projects
digitalisering@umu
Note

S. 1-66: sammanfattning, s. 69-190: 6 uppsatser

Available from: 2015-04-21 Created: 2015-04-10 Last updated: 2015-04-21Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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Output format
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