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University of Groningen

Down & Alzheimer

Dekker, Alain Daniel

IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite from

it. Please check the document version below.

Document Version

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Publication date:

2017

Link to publication in University of Groningen/UMCG research database

Citation for published version (APA):

Dekker, A. D. (2017). Down & Alzheimer: Behavioural biomarkers of a forced marriage. Rijksuniversiteit

Groningen.

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Stellingen behorende bij het proefschrift

Down & Alzheimer

– behavioural biomarkers of a forced marriage –

1. Dementie-gerelateerde gedragsveranderingen zijn niet te onderschatten bij downsyndroom. (dit proefschrift)

2. Systematische evaluatie van gedragsveranderingen, bijvoorbeeld met de nieuwe BPSD-DS schaal, vergroot begrip en acceptie, en maakt aanpassing van de dagelijkse zorg en gerichte behandelingen mogelijk. (dit proefschrift)

3. Frequentietoenames in onder meer angst, slaapproblemen, apathie en depressie zijn mogelijk vroege alarmsignalen voor dementie bij downsyndroom. (dit proefschrift)

4. Monoaminerge neurotransmissie (i.h.b. het noradrenerge systeem) is aangetast in downsyndroom. (dit proefschrift)

5. De potentie van MHPG als betrouwbare biomarker voor de ziekte van Alzheimer bij downsyndroom kan (voorlopig) niet worden bevestigd. (dit proefschrift) 6. Het veelgebruikte muismodel voor downsyndroom (Ts65Dn) is ongeschikt voor

onderzoek naar monoaminerge veranderingen gerelateerd aan de ziekte van Alzheimer. (dit proefschrift)

7. Epigenetische repressie van genexpressie zou de negatieve effecten van een derde chromosoom 21, zoals APP overexpressie, kunnen verminderen. (dit proefschrift)

8. Alzheimeronderzoek is een hogesnelheidstrein; downsyndroomonderzoek een boemeltrein met bevroren wissels en blaadjes op de rails.

9. Mensen met downsyndroom hebben net zoveel recht op goed wetenschappelijk onderzoek als mensen in de algemene bevolking.

10. Afzwakken, negeren of ontkennen van het hoge risico op dementie bij downsyndroom belemmert de zoektocht naar oplossingen.

11. Wetenschappelijk onderzoek is de kunst van het kiezen.

12. Al gaat er niets boven Groningen, multicentrische (internationale) samenwerking is van het allergrootste belang.

Alain Daniël Dekker Groningen, 15 november 2017

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Propositions accompanying the dissertation

Down & Alzheimer

– behavioural biomarkers of a forced marriage –

1. Behavioural and Psychological Symptoms of Dementia should not be underestimated in Down syndrome. (this dissertation)

2. Systematic evaluation of behavioural changes, for instance through the new BPSD-DS scale, increases understanding and acceptance, and enables adaptation of daily care and targeted therapy. (this dissertation)

3. Frequency increases in among others anxiety, sleep disturbances, apathy and depression are possible early alarm signals for dementia in Down syndrome. (this dissertation)

4. Monoaminergic neurotransmission (the noradrenergic system in particular) is affected in Down syndrome. (this dissertation)

5. The potential of MHPG as reliable biomarker for Alzheimer’s disease in Down syndrome cannot be confirmed (for the time being). (this dissertation) 6. The commonly used mouse model for Down syndrome (Ts65Dn) is not

suitable for studying monoaminergic changes related to Alzheimer’s disease. (this dissertation)

7. Epigenetic repression of gene expression might reduce the negative effects of a third chromosome 21, such as APP overexpression. (this dissertation) 8. Alzheimer’s research is a high-speed train; Down syndrome research is a slow

train with frozen switches and leaves on the rails.

9. People with Down syndrome deserve good scientific research just as much as people in the general population.

10. Downplaying, ignoring or denying the high risk on dementia in Down syndrome hampers the quest for solutions.

11. Scientific research is the art of making choices.

12. Although ‘Nothing beats Groningen’, multicentre (international) collaboration is of utmost importance.

Alain Daniël Dekker Groningen, 15 november 2017

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