Causal Relationship between Plasma Adiponectin and Body Mass Index: One- and Two-Sample Bidirectional Mendelian Randomization Analyses in 460 397 Individuals.
BACKGROUND: Adiponectin is a protein hormone produced by adipocytes that may play an important role in obesity. However, the causal interrelation between plasma adiponectin and body mass index (BMI) is still uncertain. We tested the hypotheses that (a) plasma adiponectin and BMI are inversely associ...
| Publicado en: | Clinical Chemistry Vol. 66; no. 12; pp. 1548 - 1558 |
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| Autores principales: | , , , |
| Formato: | Journal Article |
| Publicado: |
Oxford University Press / USA
Dec2020
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=147633925&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 147633925 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00099147 10CS jtl: Clinical Chemistry issn: 00099147 maglogo: N pubinfo: dt: Dec2020 vid: 66 iid: 12 pid: 622 pub: Oxford University Press / USA artinfo: ui: 147633925 10.1093/clinchem/hvaa227 147633925 ppf: 1548 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Causal Relationship between Plasma Adiponectin and Body Mass Index: One- and Two-Sample Bidirectional Mendelian Randomization Analyses in 460 397 Individuals. aug: au: Nielsen, Maria Booth Çolak, Yunus Benn, Marianne Nordestgaard, Børge Grønne affil: Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark sug: ab: BACKGROUND: Adiponectin is a protein hormone produced by adipocytes that may play an important role in obesity. However, the causal interrelation between plasma adiponectin and body mass index (BMI) is still uncertain. We tested the hypotheses that (a) plasma adiponectin and BMI are inversely associated observationally, (b) genetically high BMI is associated with lower plasma adiponectin, and (c) genetically high plasma adiponectin is associated with lower BMI. METHODS: Information on 108 896 individuals from the Copenhagen General Population Study was used in observational and bidirectional one-sample Mendelian randomization analyses, using 5 genetic variants for BMI and 3 for adiponectin. For independent confirmation, information on 322 154 individuals from the GIANT consortium, and 29 347 individuals from the ADIPOGen consortium was used in bidirectional two-sample Mendelian randomization analysis, using 68 genetic variants for BMI and 14 for adiponectin. RESULTS: In observational analyses, a 1kg/m2 increase in BMI was associated with -0.44µg/mL (95% confidence interval: -0.46, -0.42) in plasma adiponectin, whereas a 1µg/mL increase in plasma adiponectin was associated with -0.11kg/m2 (-0.12, -0.11) in BMI. In causal genetic analyses, no associations were observed between BMI and plasma adiponectin and vice versa. In one-sample Mendelian randomization analyses, a 1kg/m2 genetically determined increase in BMI was associated with -0.13µg/mL (-0.53, 0.28) in plasma adiponectin, whereas a 1µg/mL genetically determined increase in plasma adiponectin was associated with 0.01kg/m2 (-0.05, 0.07) in BMI. Corresponding estimates in the two-sample Mendelian randomization analyses were 0.03µg/mL (-0.02, 0.07) and 0.03kg/m2(-0.02, 0.07), respectively. CONCLUSIONS: Observationally, plasma adiponectin and BMI are inversely associated. In contrast, genetically high plasma adiponectin is unlikely to influence BMI, and genetically high BMI is unlikely to influence plasma adiponectin. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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