Correlates of insulin clearance in apparently healthy non-obese Japanese men

Abstract Hyperinsulinemia observed in obese subject is caused at least in part by low metabolic clearance rate of insulin (MCRI). However, the determinants of MCRI in non-obese subjects are not fully understood. To investigate the correlates of MCRI in healthy non-obese men (BMI <25 kg/m2), we st...

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Autores principales: Hideyoshi Kaga, Yoshifumi Tamura, Kageumi Takeno, Saori Kakehi, Takashi Funayama, Yasuhiko Furukawa, Miho Nishitani-Yokoyama, Kazunori Shimada, Hiroyuki Daida, Shigeki Aoki, Adria Giacca, Akio Kanazawa, Ryuzo Kawamori, Hirotaka Watada
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Publicado: Nature Portfolio 2017
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spelling oai:doaj.org-article:ac87977e48d44dd7ada656f806620cda2021-12-02T11:40:45ZCorrelates of insulin clearance in apparently healthy non-obese Japanese men10.1038/s41598-017-01469-x2045-2322https://doaj.org/article/ac87977e48d44dd7ada656f806620cda2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01469-xhttps://doaj.org/toc/2045-2322Abstract Hyperinsulinemia observed in obese subject is caused at least in part by low metabolic clearance rate of insulin (MCRI). However, the determinants of MCRI in non-obese subjects are not fully understood. To investigate the correlates of MCRI in healthy non-obese men (BMI <25 kg/m2), we studied 49 non-obese Japanese men free of cardiometabolic risk factors. Using a 2-step hyperinsulinemic euglycemic clamp, we evaluated MCRI and insulin sensitivity. We also calculated the rate of glucose disappearance (Rd) during the clamp and muscle insulin sensitivity was defined as Rd/steady state serum insulin (SSSI) at the second step. Based on the median value of MCRI, the subjects were divided into the low- and high-MCRI groups. Subjects of the low-MCRI group had significant impairment of muscle insulin sensitivity, although Rd levels were comparable between the two groups, probably due to elevated SSSI in the low-MCRI group. Subjects of the low-MCRI group had higher total body fat content and lower VO2peak and showed no deterioration of cardiometabolic risk factors. Our results suggest that low MCRI may be early change to maintain glucose uptake and metabolic status in the face of slight impairment of muscle insulin sensitivity caused by increased adiposity and lower fitness level.Hideyoshi KagaYoshifumi TamuraKageumi TakenoSaori KakehiTakashi FunayamaYasuhiko FurukawaMiho Nishitani-YokoyamaKazunori ShimadaHiroyuki DaidaShigeki AokiAdria GiaccaAkio KanazawaRyuzo KawamoriHirotaka WatadaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Hideyoshi Kaga
Yoshifumi Tamura
Kageumi Takeno
Saori Kakehi
Takashi Funayama
Yasuhiko Furukawa
Miho Nishitani-Yokoyama
Kazunori Shimada
Hiroyuki Daida
Shigeki Aoki
Adria Giacca
Akio Kanazawa
Ryuzo Kawamori
Hirotaka Watada
Correlates of insulin clearance in apparently healthy non-obese Japanese men
description Abstract Hyperinsulinemia observed in obese subject is caused at least in part by low metabolic clearance rate of insulin (MCRI). However, the determinants of MCRI in non-obese subjects are not fully understood. To investigate the correlates of MCRI in healthy non-obese men (BMI <25 kg/m2), we studied 49 non-obese Japanese men free of cardiometabolic risk factors. Using a 2-step hyperinsulinemic euglycemic clamp, we evaluated MCRI and insulin sensitivity. We also calculated the rate of glucose disappearance (Rd) during the clamp and muscle insulin sensitivity was defined as Rd/steady state serum insulin (SSSI) at the second step. Based on the median value of MCRI, the subjects were divided into the low- and high-MCRI groups. Subjects of the low-MCRI group had significant impairment of muscle insulin sensitivity, although Rd levels were comparable between the two groups, probably due to elevated SSSI in the low-MCRI group. Subjects of the low-MCRI group had higher total body fat content and lower VO2peak and showed no deterioration of cardiometabolic risk factors. Our results suggest that low MCRI may be early change to maintain glucose uptake and metabolic status in the face of slight impairment of muscle insulin sensitivity caused by increased adiposity and lower fitness level.
format article
author Hideyoshi Kaga
Yoshifumi Tamura
Kageumi Takeno
Saori Kakehi
Takashi Funayama
Yasuhiko Furukawa
Miho Nishitani-Yokoyama
Kazunori Shimada
Hiroyuki Daida
Shigeki Aoki
Adria Giacca
Akio Kanazawa
Ryuzo Kawamori
Hirotaka Watada
author_facet Hideyoshi Kaga
Yoshifumi Tamura
Kageumi Takeno
Saori Kakehi
Takashi Funayama
Yasuhiko Furukawa
Miho Nishitani-Yokoyama
Kazunori Shimada
Hiroyuki Daida
Shigeki Aoki
Adria Giacca
Akio Kanazawa
Ryuzo Kawamori
Hirotaka Watada
author_sort Hideyoshi Kaga
title Correlates of insulin clearance in apparently healthy non-obese Japanese men
title_short Correlates of insulin clearance in apparently healthy non-obese Japanese men
title_full Correlates of insulin clearance in apparently healthy non-obese Japanese men
title_fullStr Correlates of insulin clearance in apparently healthy non-obese Japanese men
title_full_unstemmed Correlates of insulin clearance in apparently healthy non-obese Japanese men
title_sort correlates of insulin clearance in apparently healthy non-obese japanese men
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/ac87977e48d44dd7ada656f806620cda
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