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Argyrophilic grain disease in individuals younger than 75 years: clinical variability in an under‐recognized limbic tauopathy.

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Title: Argyrophilic grain disease in individuals younger than 75 years: clinical variability in an under‐recognized limbic tauopathy.
Authors: Wurm, R. (AUTHOR), Klotz, S. (AUTHOR), Rahimi, J. (AUTHOR), Katzenschlager, R. (AUTHOR), Lindeck‐Pozza, E. (AUTHOR), Regelsberger, G. (AUTHOR), Danics, K. (AUTHOR), Kapas, I. (AUTHOR), Bíró, Z. A. (AUTHOR), Stögmann, E. (AUTHOR), Gelpi, E. (AUTHOR), Kovacs, G. G. (AUTHOR)
Source: European Journal of Neurology. Oct2020, Vol. 27 Issue 10, p1856-1866. 11p.
Subjects: Anti-NMDA receptor encephalitis, Older patients, Grain, Urinary incontinence, Symptoms, Disease duration
Abstract: Background and purpose: Argyrophilic grain disease (AGD) is a limbic‐predominant 4R‐tauopathy. AGD is thought to be an age‐related disorder and is frequently detected as a concomitant pathology with other neurodegenerative conditions. There is a paucity of data on the clinical phenotype of pure AGD. In elderly patients, however, AGD pathology frequently associates with cognitive decline, personality changes, urine incontinence and cachexia. In this study, clinicopathological findings were analysed in individuals younger than 75. Methods: Patients were identified retrospectively based on neuropathological examinations during 2006–2017 and selected when AGD was the primary and dominant pathological finding. Clinical data were obtained retrospectively through medical records. Results: In all, 55 patients (2% of all examinations performed during that period) with AGD were identified. In seven cases (13%) AGD was the primary neuropathological diagnosis without significant concomitant pathologies. Two patients were female, median age at the time of death was 64 years (range 51–74) and the median duration of disease was 3 months (range 0.5–36). The most frequent symptoms were progressive cognitive decline, urinary incontinence, seizures and psychiatric symptoms. Brain magnetic resonance imaging revealed mild temporal atrophy. Conclusions: Argyrophilic grain disease is a rarely recognized limbic tauopathy in younger individuals. Widening the clinicopathological spectrum of tauopathies may allow identification of further patients who could benefit from tau‐based therapeutic strategies. [ABSTRACT FROM AUTHOR]
Copyright of European Journal of Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Argyrophilic grain disease in individuals younger than 75 years: clinical variability in an under‐recognized limbic tauopathy.
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  Data: <searchLink fieldCode="AR" term="%22Wurm%2C+R%2E%22">Wurm, R.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Klotz%2C+S%2E%22">Klotz, S.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rahimi%2C+J%2E%22">Rahimi, J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Katzenschlager%2C+R%2E%22">Katzenschlager, R.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lindeck‐Pozza%2C+E%2E%22">Lindeck‐Pozza, E.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Regelsberger%2C+G%2E%22">Regelsberger, G.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Danics%2C+K%2E%22">Danics, K.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kapas%2C+I%2E%22">Kapas, I.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bíró%2C+Z%2E+A%2E%22">Bíró, Z. A.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Stögmann%2C+E%2E%22">Stögmann, E.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gelpi%2C+E%2E%22">Gelpi, E.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kovacs%2C+G%2E+G%2E%22">Kovacs, G. G.</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22European+Journal+of+Neurology%22">European Journal of Neurology</searchLink>. Oct2020, Vol. 27 Issue 10, p1856-1866. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Anti-NMDA+receptor+encephalitis%22">Anti-NMDA receptor encephalitis</searchLink><br /><searchLink fieldCode="DE" term="%22Older+patients%22">Older patients</searchLink><br /><searchLink fieldCode="DE" term="%22Grain%22">Grain</searchLink><br /><searchLink fieldCode="DE" term="%22Urinary+incontinence%22">Urinary incontinence</searchLink><br /><searchLink fieldCode="DE" term="%22Symptoms%22">Symptoms</searchLink><br /><searchLink fieldCode="DE" term="%22Disease+duration%22">Disease duration</searchLink>
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  Label: Abstract
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  Data: Background and purpose: Argyrophilic grain disease (AGD) is a limbic‐predominant 4R‐tauopathy. AGD is thought to be an age‐related disorder and is frequently detected as a concomitant pathology with other neurodegenerative conditions. There is a paucity of data on the clinical phenotype of pure AGD. In elderly patients, however, AGD pathology frequently associates with cognitive decline, personality changes, urine incontinence and cachexia. In this study, clinicopathological findings were analysed in individuals younger than 75. Methods: Patients were identified retrospectively based on neuropathological examinations during 2006–2017 and selected when AGD was the primary and dominant pathological finding. Clinical data were obtained retrospectively through medical records. Results: In all, 55 patients (2% of all examinations performed during that period) with AGD were identified. In seven cases (13%) AGD was the primary neuropathological diagnosis without significant concomitant pathologies. Two patients were female, median age at the time of death was 64 years (range 51–74) and the median duration of disease was 3 months (range 0.5–36). The most frequent symptoms were progressive cognitive decline, urinary incontinence, seizures and psychiatric symptoms. Brain magnetic resonance imaging revealed mild temporal atrophy. Conclusions: Argyrophilic grain disease is a rarely recognized limbic tauopathy in younger individuals. Widening the clinicopathological spectrum of tauopathies may allow identification of further patients who could benefit from tau‐based therapeutic strategies. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of European Journal of Neurology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/ene.14321
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        Text: English
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