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Type: Journal article
Title: Hyperbaric oxygen therapy improves peripheral insulin sensitivity in humans
Author: Wilkinson, D.
Chapman, I.
Heilbronn, L.
Citation: Diabetic Medicine, 2012; 29(8):986-989
Publisher: Blackwell Publishing Ltd
Issue Date: 2012
ISSN: 0742-3071
Statement of
D. Wilkinson, I.M. Chapman and L.K. Heilbronn
Abstract: AIM: Hyperbaric oxygen therapy is known to reduce fasting blood glucose in individuals with Type 2 diabetes. However, the mechanisms of this effect are not clear. The aim of this study was to determine whether peripheral insulin sensitivity by hyperinsulinaemic euglycaemic clamp is increased in patients presenting for hyperbaric oxygen therapy. METHODS: Participants were non-obese individuals without Type 2 diabetes (n = 5) or obese patients with Type 2 diabetes (n = 5). Patients were given 100% oxygen at 2.0 absolute atmospheres for 2 h, six sessions per week for 5 weeks. RESULTS: Peripheral insulin sensitivity was increased in the whole cohort (P = 0.04). Subsequent analysis revealed that this was significant at both treatment 3(+37.3 +.7%, P = 0.02) and treatment 30 (+40.6 + 12.6%, P = 0.009). HbA1c was significantly reduced in subjects without diabetes only (P < 0.05). CONCLUSION: Insulin sensitivity increased within 3 days of hyperbaric oxygen treatment and this was maintained for 30 sessions. This increase in insulin sensitivity is equivalent to that observed following moderate weight loss. The mechanisms underlying the insulin-sensitizing effect of hyperbaric oxygen require further elucidation.
Keywords: Adipose tissue hypoxia
hyperbaric oxygen
insulin resistance
Rights: © 2012 The Authors. Diabetic Medicine © 2012 Diabetes UK
DOI: 10.1111/j.1464-5491.2012.03587.x
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