2017
DOI: 10.1038/s41598-017-17558-w
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High-fat diet-induced obesity impairs insulin signaling in lungs of allergen-challenged mice: Improvement by resveratrol

Abstract: Insulin resistance plays an important role in obesity-associated asthma exacerbations. Using a murine model of allergic airway inflammation, we evaluated the insulin signaling transmission in lungs of obese compared with lean mice. We further evaluated the effects of the polyphenol resveratrol in the pulmonary insulin signaling. In lean mice, insulin stimulation significantly increased phosphorylations of AKT, insulin receptor substrate 1 (IRS-1) and insulin receptor β (IRβ) in lung tissue and isolated bronchi… Show more

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Cited by 20 publications
(12 citation statements)
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References 55 publications
(61 reference statements)
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“…Hyperglycaemia and insulin resistance are also suggested to be risk factors for asthma and lung fibrosis 19,20 . Previous studies have showed that obesity induce impairment of insulin signaling, which can lead to bronchoconstriction, fibrosis, and AHR 21,22 . Empagliflozin and dulaglutide restored the metabolic abnormality, including leptin and insulin levels, in this study model.…”
Section: Discussionmentioning
confidence: 99%
“…Hyperglycaemia and insulin resistance are also suggested to be risk factors for asthma and lung fibrosis 19,20 . Previous studies have showed that obesity induce impairment of insulin signaling, which can lead to bronchoconstriction, fibrosis, and AHR 21,22 . Empagliflozin and dulaglutide restored the metabolic abnormality, including leptin and insulin levels, in this study model.…”
Section: Discussionmentioning
confidence: 99%
“…[ 59 ] observed that insulin suppresses cardiac muscle atrophy by Akt-dependent inhibition of FoxO3 in the skeletal muscle. In addition, insulin significantly increases Akt phosphorylation in the lung tissue of lean rats, but not in obese mice, indicating that this tissue does not respond to insulin after 12 weeks of HFD [ 60 ]. Additionally, Akt expression and activation in the mouse skin increases with age [ 61 ].…”
Section: Differential Roles Of Akt/foxos Axis In Metabolic- and Non-metabolic Organsmentioning
confidence: 99%
“…We previously reported that Akt-induced FoxO1 phosphorylation was reduced in the livers of aged rats, whereas it was increased in the kidney [ 65 ]. Different trends of changes in the Akt/FoxOs axis in metabolic and non-metabolic organs during aging are shown in Table 1 [ 31 , 32 , 60 - 62 , 66 - 73 ].…”
Section: Differential Roles Of Akt/foxos Axis In Metabolic- and Non-metabolic Organsmentioning
confidence: 99%
“…Resveratrol also significantly increased the phosphorylated AMPK expression, reduced the expression of p47phox and TNF-α and prevented ROS production in lung tissues of obese mice ( Andre et al, 2016 ). Furthermore, another study demonstrated that resveratrol administration improved allergic airway inflammation and obesity-associated asthma exacerbations by restoring insulin-induced phosphorylation of Akt, insulin receptor substrate 1 (IRS-1) and insulin receptor β (IRβ), decreasing JNK and NF-κB signaling pathways in lung tissues of obese mice ( Andre et al, 2017 ).…”
Section: Resveratrol and Asthmamentioning
confidence: 99%