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Bettahi I, Krishnankutty R, Jaganjac M, Suleiman NNM, Ramanjaneya M, Jerobin J, Hassoun S, Alkasem M, Abdelhakam I, Iskandarani A, Samra TA, Mohamed-Ali V, Abou-Samra AB. Differences in protein expression, at the basal state and at 2 h of insulin infusion, in muscle biopsies from healthy Arab men with high or low insulin sensitivity measured by hyperinsulinemic euglycemic clamp. Front Endocrinol (Lausanne) 2022; 13:1024832. [PMID: 36876056 PMCID: PMC9982120 DOI: 10.3389/fendo.2022.1024832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 12/14/2022] [Indexed: 02/19/2023] Open
Abstract
BACKGROUND Skeletal muscle is the main site for insulin-dependent glucose disposal. The hyperinsulinemic euglycemic clamp (HIEC) is the gold standard for the assessment of insulin sensitivity (IS). We have previously shown that insulin sensitivity, measured by HIEC, varied widely among a group of 60 young healthy men with normoglycemia. The aim of this study was to correlate the proteomic profile of skeletal muscles to insulin sensitivity. METHODS Muscle biopsies from 16 subjects having the highest (M ≥ 13; n = 8, HIS) and lowest (M ¾ 6, n = 8, LIS) IS were obtained at baseline and during insulin infusion after stabilization of the blood glucose level and glucose infusion rate at the end of the HIEC. The samples were processed using a quantitative proteomic analysis approach. RESULTS At baseline, 924 proteins were identified in the HIS and LIS groups. Among the 924 proteins detected in both groups, three were suppressed and three were increased significantly in the LIS subjects compared with the HIS subjects. Following insulin infusion, 835 proteins were detected in both groups. Among the 835 proteins, two showed differential responsiveness to insulin; ATP5F1 protein was decreased, and MYLK2 was higher in the LIS group compared with that in the HIS group. Our data suggest that alteration in mitochondrial proteins and an increased number of proteins involved in fast-twitch fiber correlate to insulin sensitivity in healthy young Arab men. CONCLUSIONS These results suggest a change in a small number of differentially expressed proteins. A possible reason for this small change could be our study cohorts representing a homogeneous and healthy population. Additionally, we show differences in protein levels from skeletal muscle in low and high insulin sensitivity groups. Therefore, these differences may represent early events for the development of insulin resistance, pre-diabetes, and type 2 diabetes.
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Affiliation(s)
- Ilham Bettahi
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- *Correspondence: Ilham Bettahi,
| | - Roopesh Krishnankutty
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Morana Jaganjac
- Division of Molecular Medicine, Ruder Boskovic Institute, Zagreb, Croatia
| | - Noor Nabeel M. Suleiman
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Manjunath Ramanjaneya
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Jayakumar Jerobin
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Shaimaa Hassoun
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Meis Alkasem
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Ibrahem Abdelhakam
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Ahmad Iskandarani
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Tareq A. Samra
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | | | - Abdul Badi Abou-Samra
- Qatar Metabolic Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- Weill Cornell Medicine-Qatar, Doha, Qatar
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