WFRF:(Andersson Johanna 1974)
Sökning: WFRF:(Andersson Johanna 1974) > (2015-2019) > Copy Number Variant...
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Copy Number Variants Are Enriched in Individuals With Early-Onset Obesity and Highlight Novel Pathogenic Pathways
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- Pettersson, M. (författare)
- Karolinska Institutet
- Viljakainen, H. (författare)
- Loid, P. (författare)
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- Mustila, T. (författare)
- Pekkinen, M. (författare)
- Armenio, M. (författare)
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- (creator_code:org_t)
- 2017-06-12
- 2017
- Engelska.
- Ingår i: Journal of Clinical Endocrinology & Metabolism. - : The Endocrine Society. - 0021-972X .- 1945-7197. ; 102:8, s. 3029-3039
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Context: Only a few genetic causes for childhood obesity have been identified to date. Copy number variants (CNVs) are known to contribute to obesity, both syndromic (15q11.2 deletions, Prader-Willi syndrome) and nonsyndromic (16p11.2 deletions) obesity. Objective: To study the contribution of CNVs to early-onset obesity and evaluate the expression of candidate genes in subcutaneous adipose tissue. Design and Setting: A case-control study in a tertiary academic center. Participants: CNV analysis was performed on 90 subjects with early-onset obesity and 67 normalweight controls. Subcutaneous adipose tissue from body mass index-discordant siblings was used for the gene expression analyses. Main Outcome Measures: We used custom high-density array comparative genomic hybridization with exon resolution in 1989 genes, including all known obesity loci. The expression of candidate genes was assessed using microarray analysis of messenger RNA from subcutaneous adipose tissue. Results: We identified rare CNVs in 17 subjects (19%) with obesity and 2 controls (3%). In three cases (3%), the identified variant involved a known syndromic lesion (22q11.21 duplication, 1q21.1 deletion, and 16p11.2 deletion, respectively), although the others were not known. Seven CNVs in 10 families were inherited and segregated with obesity. Expression analysis of 37 candidate genes showed discordant expression for 10 genes (PCM1, EFEMP1, MAMLD1, ACP6, BAZ2B, SORBS1, KLF15, MACROD2, ATR, and MBD5). Conclusions: Rare CNVs contribute possibly pathogenic alleles to a substantial fraction of children with early-onset obesity. The involved genes might provide insights into pathogenic mechanisms and involved cellular pathways. These findings highlight the importance of CNV screening in children with early-onset obesity.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
Nyckelord
- bardet-biedl-syndrome
- association
- deletions
- type-2
- loci
- rearrangements
- contributes
- population
- mutations
- insights
- Endocrinology & Metabolism
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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- Pettersson, M.
- Viljakainen, H.
- Loid, P.
- Mustila, T.
- Pekkinen, M.
- Armenio, M.
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- Andersson-Assars ...
- Makitie, O.
- Lindstrand, A.
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- Karolinska Institutet
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