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Discovery of biomarkers for glycaemic deterioration before and after the onset of type 2 diabetes: Rationale and design of the epidemiological studies within the IMI DIRECT Consortium.
Diabetologia 57, 1132-1142 (2014)
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AIMS/HYPOTHESIS: The DIRECT (Diabetes Research on Patient Stratification) Study is part of a European Union Framework 7 Innovative Medicines Initiative project, a joint undertaking between four industry and 21 academic partners throughout Europe. The Consortium aims to discover and validate biomarkers that: (1) predict the rate of glycaemic deterioration before and after type 2 diabetes onset; (2) predict the response to diabetes therapies; and (3) help stratify type 2 diabetes into clearly definable disease subclasses that can be treated more effectively than without stratification. This paper describes two new prospective cohort studies conducted as part of DIRECT. METHODS: Prediabetic participants (target sample size 2,200-2,700) and patients with newly diagnosed type 2 diabetes (target sample size ~1,000) are undergoing detailed metabolic phenotyping at baseline and 18 months and 36 months later. Abdominal, pancreatic and liver fat is assessed using MRI. Insulin secretion and action are assessed using frequently sampled OGTTs in non-diabetic participants, and frequently sampled mixed-meal tolerance tests in patients with type 2 diabetes. Biosamples include venous blood, faeces, urine and nail clippings, which, among other biochemical analyses, will be characterised at genetic, transcriptomic, metabolomic, proteomic and metagenomic levels. Lifestyle is assessed using high-resolution triaxial accelerometry, 24 h diet record, and food habit questionnaires. CONCLUSIONS/INTERPRETATION: DIRECT will yield an unprecedented array of biomaterials and data. This resource, available through managed access to scientists within and outside the Consortium, will facilitate the development of new treatments and therapeutic strategies for the prevention and management of type 2 diabetes.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Epigenetic ; Gene-environment Interaction ; Genome ; Glycaemic Control ; Lifestyle ; Microbiome ; Prediabetes ; Proteome ; Transcriptome ; Type 2 Diabetes; Insulin Sensitivity; Cardiovascular-disease; Glucose-tolerance; Goldberg Cutoff; Risk-factors; Resistance; Consumption; Population; History; Cohort
Language
english
Publication Year
2014
HGF-reported in Year
2014
ISSN (print) / ISBN
0012-186X
e-ISSN
1432-0428
Journal
Diabetologia
Quellenangaben
Volume: 57,
Issue: 6,
Pages: 1132-1142
Publisher
Springer
Publishing Place
Berlin ; Heidelberg [u.a.]
Reviewing status
Peer reviewed
Institute(s)
Institute of Epidemiology (EPI)
German Center for Diabetes Reseach (DZD)
German Center for Diabetes Reseach (DZD)
POF-Topic(s)
30202 - Environmental Health
Research field(s)
Genetics and Epidemiology
PSP Element(s)
G-504000-002
PubMed ID
24695864
WOS ID
WOS:000335922800006
Scopus ID
84901229328
Erfassungsdatum
2014-04-10