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University of Groningen

The exposome in development and behaviour of inflammatory bowel disease

van der Sloot, K.W.J.

DOI:

10.33612/diss.158740072

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

Publisher's PDF, also known as Version of record

Publication date:

2021

Link to publication in University of Groningen/UMCG research database

Citation for published version (APA):

van der Sloot, K. W. J. (2021). The exposome in development and behaviour of inflammatory bowel

disease. University of Groningen. https://doi.org/10.33612/diss.158740072

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1. Western lifestyle and living environment play an im-portant role in the development of inflammatory bowel disease (IBD) – this thesis

2. A universal, precise, and reproducible measurement tool is needed to study the exposome in a reliable manner in IBD – this thesis

3. Studies focused on the role of lifestyle and living environ-ment in health and disease should meet the same quality standards as those focused on more exact factors, such as genetic variants – this thesis

4. Amongst others, prenatal smoke exposure and stress are novel, modifiable, exposome factors associated with development of IBD – this thesis

5. To reliably study the role of the exposome in behaviour of disease, one needs a very large sample size – this thesis 6. Measuring visceral adiposity in patients with Crohn’s

dis-ease can be useful to identify those at an incrdis-eased risk of developing disease complications – this thesis

7. A latent Cytomegalovirus infection is unlikely to play a role the behaviour of IBD – this thesis

8. Without validated laboratory tests to detect antibody re-sponses to Mycobacterium Avium subspecies Paratuber-culosis in humans, studies based on serology for its role in the development and disease course of IBD will remain controversial – this thesis

Cigarette smoking increases risk of colorectal neo-plasia in patients with IBD and should be integrated in the risk stratification of surveillance guidelines

– this thesis

I have never tried that before, so I think I should definitely be able to do that – Pippi Longstocking

Propositions accompanying the thesis

The exposome in development

and behaviour of InfLammatory

Bowel Disease

9.

(3)

1. Een Westerse leefstijl en leefomgeving spelen een belangrijke rol bij de ontwikkeling van inflammatoire darmziekten (IBD)

– deze thesis

2. Om de rol van het exposoom in IBD te bestuderen is een univer-seel, precies en reproduceerbaar meetinstrument nodig

– deze thesis

3. Onderzoek naar de rol van leefstijl en leefomgeving bij gezond-heid en ziekte moet aan dezelfde kwaliteitsnormen voldoen als studies gericht op de rol van meer exacte factoren, zoals genetische variaties – deze thesis

4. Onder andere prenatale rook expositie en stress zijn nieu-we, modificeerbare exposoom factoren geassocieerd met de ontwikkeling van IBD – deze thesis

5. Om betrouwbaar onderzoek te doen naar de rol van het expos-oom in beloop van ziekte, zijn er zeer grote studie populaties nodig – deze thesis

6. Het meten van viscerale adipositas in patiënten met de ziekte van Crohn kan gebruikt worden om patiënten met toegenomen risico op ziekte complicaties te identificeren – deze thesis 7. Het is onwaarschijnlijk dat een latente cytomegalovirus infectie

een rol speelt in het beloop van IBD – deze thesis

8. Zonder gevalideerde laboratorium testen om antilichaam reac-ties tegen Mycobacterium Avium subspecies Paratuberculosis te meten in mensen zullen serologische studies naar de rol van MAP bij de ontwikkeling en het beloop van IBD controversieel

blijven – deze thesis

Roken vergroot de kans op colorectale neoplasie in patiënten met IBD, en zou toegevoegd moeten worden aan de risico stratificatie in surveillance richtlijnen – deze thesis

Ik heb het nog nooit gedaan, dus ik denk dat ik het wel kan – Pippi Langkous

Stellingen behorende bij het proefschrift

The exposome in development and behaviour

of InfLammatory Bowel Disease

9.

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