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Increased thirst an...
Increased thirst and drinking in Huntington's disease and the R6/2 mouse
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Wood, Nigel I. (author)
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Goodman, Anna O. G. (author)
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- van der Burg, Jorien m (author)
- Lund University,Lunds universitet,Institutionen för experimentell medicinsk vetenskap,Medicinska fakulteten,Department of Experimental Medical Science,Faculty of Medicine
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Gazeau, Veronique (author)
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- Brundin, Patrik (author)
- Lund University,Lunds universitet,Institutionen för experimentell medicinsk vetenskap,Medicinska fakulteten,Department of Experimental Medical Science,Faculty of Medicine
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- Björkqvist, Maria (author)
- Lund University,Lunds universitet,Institutionen för experimentell medicinsk vetenskap,Medicinska fakulteten,Translationell neuroendokrinologi,Forskargrupper vid Lunds universitet,Department of Experimental Medical Science,Faculty of Medicine,Translational Neuroendocrinology,Lund University Research Groups
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Petersen, Asa (author)
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Tabrizi, Sarah J. (author)
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Barker, Roger A. (author)
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Morton, A. Jennifer (author)
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(creator_code:org_t)
- Elsevier BV, 2008
- 2008
- English.
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In: Brain Research Bulletin. - : Elsevier BV. - 0361-9230. ; 76:1-2, s. 70-79
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http://dx.doi.org/10...
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Abstract
Subject headings
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- While Huntington's disease (HD) is a condition that primarily involves the basal ganglia, there is evidence to suggest that the hypothalamus is also affected. Because the osmoreceptors regulating thirst are situated in the circumventricular region of the hypothalamus, we were interested in whether altered thirst is a part of the HD phenotype. We used the LABORAS behavioural monitoring system and water consumption to show that drinking behaviour was abnormal in R6/2 mice. By 10 weeks of age, R6/2 mice spent significantly more time drinking and drank a greater volume than their wild-type (WT) littermates. The numbers of immunoreactive vasopressin neurons in the paraventricular nucleus (PVN) of the hypothalamus in R6/2 mice were significantly decreased from 8 weeks of age, suggesting that the change in drinking behaviour may be the result of hypothalamic dysfunction. We gave a xerostomia (dry mouth) questionnaire to HD patients and control subjects, and also measured their urine osmolality and serum vasopressin. The mean total xerostomia score was significantly higher in HD patients than in controls, indicating greater thirst in HD patients. Urine osmolality was unaffected in HD patients up to clinical stage 111, and none of the patients had diabetes. However, serum vasopressin was increased, suggesting a dysregulation in the control of hypothalamic vasopressin release. A dry mouth can affect taste, mastication and swallowing, all of which may contribute to the significant weight loss seen in both HD patients and R6/2 mice, as can dehydration. We suggest that increased thirst may be an important and clinically relevant biomarker for the study of disease progression in HD.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Keyword
- hypothalamus
- vasopressin
- xerostomia
- drinking
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Wood, Nigel I.
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Goodman, Anna O. ...
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van der Burg, Jo ...
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Gazeau, Veroniqu ...
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Brundin, Patrik
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Björkqvist, Mari ...
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show more...
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Petersen, Asa
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Tabrizi, Sarah J ...
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Barker, Roger A.
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Morton, A. Jenni ...
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Basic Medicine
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and Neurosciences
- Articles in the publication
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Brain Research B ...
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Lund University