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Insulin-stimulated glucose uptake in skeletal muscle, adipose tissue and liver : a positron emission tomography study

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published version
Date
2018
Author(s)
Honka, Miikka-Juhani
Latva-Rasku, Aino
Bucci, Marco
Virtanen, Kirsi A
Hannukainen, Jarna C
Kalliokoski, Kari K
Nuutila, Pirjo
Unique identifier
10.1530/EJE-17-0882
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Citation
Honka, Miikka-Juhani. Latva-Rasku, Aino. Bucci, Marco. Virtanen, Kirsi A. Hannukainen, Jarna C. Kalliokoski, Kari K. Nuutila, Pirjo. (2018). Insulin-stimulated glucose uptake in skeletal muscle, adipose tissue and liver : a positron emission tomography study.  EUROPEAN JOURNAL OF ENDOCRINOLOGY, 178 (5) , 523-531. 10.1530/EJE-17-0882.
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CC BY http://creativecommons.org/licenses/by/4.0/
Abstract

Objective
Insulin resistance is reflected by the rates of reduced glucose uptake (GU) into the key insulin-sensitive tissues, skeletal muscle, liver and adipose tissue. It is unclear whether insulin resistance occurs simultaneously in all these tissues or whether insulin resistance is tissue specific.

Design and methods
We measured GU in skeletal muscle, adipose tissue and liver and endogenous glucose production (EGP), in a single session using 18F-fluorodeoxyglucose with positron emission tomography (PET) and euglycemic–hyperinsulinemic clamp. The study population consisted of 326 subjects without diabetes from the CMgene study cohort.

Results
Skeletal muscle GU less than 33 µmol/kg tissue/min and subcutaneous adipose tissue GU less than 11.5 µmol/kg tissue/min characterized insulin-resistant individuals. Men had considerably worse insulin suppression of EGP compared to women. By using principal component analysis (PCA), BMI inversely and skeletal muscle, adipose tissue and liver GU positively loaded on same principal component explaining one-third of the variation in these measures. The results were largely similar when liver GU was replaced by EGP in PCA. Liver GU and EGP were positively associated with aging.

Conclusions
We have provided threshold values, which can be used to identify tissue-specific insulin resistance. In addition, we found that insulin resistance measured by GU was only partially similar across all insulin-sensitive tissues studied, skeletal muscle, adipose tissue and liver and was affected by obesity, aging and gender.

URI
https://erepo.uef.fi/handle/123456789/6788
Link to the original item
http://dx.doi.org/10.1530/EJE-17-0882
Publisher
Bioscientifica
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  • Terveystieteiden tiedekunta [1324]
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