This application is to continue and extend an ongoing 4-center, NHLBI-funded study (Sleep AHEAD, Action for Health in Diabetes) whose primary goal is to assess the effects of weight loss on sleep-disordered breathing (SDB) among obese patients with both type 2 diabetes (T2DM) and obstructive sleep apnea (OSA). Sleep AHEAD has been very successful logistically and scientifically. We enrolled 296 participants with sleep apnea, greatly exceeding our goal (191% of target), and established an efficient infrastructure to perform unattended home polysomnograms (PSG) at baseline and 1-, 2-, and 4-year follow-ups. We have assembled and retained the world's largest cohort of obese patients with OSA and T2DM. Moreover, the participants are well characterized by virtue of simultaneous enrollment in Look AHEAD, a 16-center;NIDDK-funded study to examine the long term effects of a weight loss intervention on cardiovascular events, including cardiovascular disease-related mortality. This NIDDK study also provides state-of-the-art weight management strategies in the context of a randomized controlled trial. Thus, the Sleep AHEAD participants, a cohort that we have found to be at extraordinarily high risk for OSA based on obesity and T2DM, are ideal for assessing the long-term effects of weight changes on SDB. In addition, as we propose in this competitive renewal, we can compare 4-5 year longitudinal changes in both SDB and sleep architecture between our Sleep AHEAD cohort, all of whom have T2DM, to carefully matched patients without T2DM from the Sleep Heart Health Study (SHHS). Such comparisons are made feasible since the data from both cohorts are already collected and the PSG methodologies are virtually identical. This application extends the 1-, 2- and 4-year findings of Sleep AHEAD by examining changes in weight and SDB among 296 obese patients with OSA and T2DM over a 10-year period. In addition, we propose to determine the effects of T2DM on SDB and sleep architecture by utilizing well-matched controls without T2DM from the SHHS. The proposed research has three specific aims: 1) to assess the effects of weight loss at 1-year on sleep-disordered breathing at 10 years;2) to assess changes in sleep-disordered breathing between those with and without type 2 diabetes;and 3) to assess changes in sleep architecture between those with and without type 2 diabetes.
Obesity, type 2 diabetes, and obstructive sleep apnea (OSA) are increasingly prevalent and pose significant consequences on the nation's health. The proposed study will evaluate the long term (10 year) effects of weight loss on OSA and the role of type 2 diabetes in the prevalence and progression of disturbed sleep patterns. These data will inform practitioners and their patients about the relative roles of type 2 diabetes and weight loss in the management of sleep disturbances.
|Shechter, Ari; Foster, Gary D; Lang, Wei et al. (2017) Effects of a lifestyle intervention on REM sleep-related OSA severity in obese individuals with type 2 diabetes. J Sleep Res 26:747-755|
|Kline, Christopher E; Reboussin, David M; Foster, Gary D et al. (2016) The Effect of Changes in Cardiorespiratory Fitness and Weight on Obstructive Sleep Apnea Severity in Overweight Adults with Type 2 Diabetes. Sleep 39:317-25|
|Shechter, Ari; St-Onge, Marie-Pierre; Kuna, Samuel T et al. (2014) Sleep architecture following a weight loss intervention in overweight and obese patients with obstructive sleep apnea and type 2 diabetes: relationship to apnea-hypopnea index. J Clin Sleep Med 10:1205-11|
|Kuna, Samuel T; Reboussin, David M; Borradaile, Kelley E et al. (2013) Long-term effect of weight loss on obstructive sleep apnea severity in obese patients with type 2 diabetes. Sleep 36:641-649A|
|St-Onge, Marie-Pierre; Zammit, Gary; Reboussin, David M et al. (2012) Associations of sleep disturbance and duration with metabolic risk factors in obese persons with type 2 diabetes: data from the Sleep AHEAD Study. Nat Sci Sleep 4:143-50|
|Rice, Thomas B; Foster, Gary D; Sanders, Mark H et al. (2012) The relationship between obstructive sleep apnea and self-reported stroke or coronary heart disease in overweight and obese adults with type 2 diabetes mellitus. Sleep 35:1293-8|
|Foster, Gary D; Borradaile, Kelley E; Sanders, Mark H et al. (2009) A randomized study on the effect of weight loss on obstructive sleep apnea among obese patients with type 2 diabetes: the Sleep AHEAD study. Arch Intern Med 169:1619-26|
|Foster, Gary D; Sanders, Mark H; Millman, Richard et al. (2009) Obstructive sleep apnea among obese patients with type 2 diabetes. Diabetes Care 32:1017-9|
|Rodway, George W; Hoffman, Leslie A; Tasota, Frederick J et al. (2008) Inducing hypoxemia in healthy humans: a method for intermittently lowering arterial blood oxygenation during physiological studies. Wilderness Environ Med 19:218-20|
|Sanders, Mark H; Montserrat, Josep M; Farre, Ramon et al. (2008) Positive pressure therapy: a perspective on evidence-based outcomes and methods of application. Proc Am Thorac Soc 5:161-72|
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