Huajun Xu1,2,3,4, Yunyan Xia1,2,3,5,4, Xinyi Li1,2,3, Yingjun Qian1,2,3, Jianyin Zou1,2,3, Fang Fang6, Hongliang Yi1,2,3, Hongmin Wu1,2, Jian Guan1,2,3, Shankai Yin1,2,3. 1. Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. 2. Otolaryngological Institute of Shanghai Jiao Tong University, Shanghai, China. 3. Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China. 4. Contributed equally. 5. Department of Otorhinolaryngology Head & Neck Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China. 6. Nursing Department of Otolaryngology Head and Neck Surgery & Center of Sleep Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
Abstract
STUDY OBJECTIVES: Obstructive sleep apnea (OSA) is thought to be associated with dyslipidemia. However, differences concerning dyslipidemia during rapid eye movement (REM) and non-REM (NREM) sleep have yet to be determined. This study was designed to explore the association between lipid profiles and OSA during REM or NREM sleep. METHODS: This is a clinical cohort. A total of 2,619 participants with at least 30 minutes of REM sleep were included. Sleep variables and fasting lipid profiles [total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), apolipoprotein (apo)A-I, apoB, apoE, and lipoprotein(a) (Lp(a))] were obtained from each participant. Apnea-hypopnea indices in REM and NREM sleep (AHIREM and AHINREM, respectively) were recorded. Linear regression analysis was used to assess the associations of AHIREM and AHINREM with lipid profiles. RESULTS: When stratified by the AHIREM severity of OSA, all demographics, clinical variables, and sleep parameters differed between the groups except for apoA-I. In fully-adjusted multivariate linear regression models, AHIREM was independently associated with increasing levels of TG, HDL-C, and apoE (P = .04, P = .01 and P = .01, respectively). AHINREM was independently associated with increasing levels of TC, TG, LDL, and apoB, and lower level of HDL-C (all P < .05). In sensitivity analyses by only exploring associations in patients who had an AHINREM or AHIREM < 5 events/h in separate regression models, AHIREM was not associated with all-lipid profile in almost all adjusted models (all P > .05), whereas AHINREM was associated with elevated TC, LDL-C, and apoB (P = .03, P = .01 and P = .01, respectively). CONCLUSIONS: AHINREM was independently associated with the greatest alterations in serum lipids, including TC, LDL-C, and apoB.
STUDY OBJECTIVES:Obstructive sleep apnea (OSA) is thought to be associated with dyslipidemia. However, differences concerning dyslipidemia during rapid eye movement (REM) and non-REM (NREM) sleep have yet to be determined. This study was designed to explore the association between lipid profiles and OSA during REM or NREM sleep. METHODS: This is a clinical cohort. A total of 2,619 participants with at least 30 minutes of REM sleep were included. Sleep variables and fasting lipid profiles [total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), apolipoprotein (apo)A-I, apoB, apoE, and lipoprotein(a) (Lp(a))] were obtained from each participant. Apnea-hypopnea indices in REM and NREM sleep (AHIREM and AHINREM, respectively) were recorded. Linear regression analysis was used to assess the associations of AHIREM and AHINREM with lipid profiles. RESULTS: When stratified by the AHIREM severity of OSA, all demographics, clinical variables, and sleep parameters differed between the groups except for apoA-I. In fully-adjusted multivariate linear regression models, AHIREM was independently associated with increasing levels of TG, HDL-C, and apoE (P = .04, P = .01 and P = .01, respectively). AHINREM was independently associated with increasing levels of TC, TG, LDL, and apoB, and lower level of HDL-C (all P < .05). In sensitivity analyses by only exploring associations in patients who had an AHINREM or AHIREM < 5 events/h in separate regression models, AHIREM was not associated with all-lipid profile in almost all adjusted models (all P > .05), whereas AHINREM was associated with elevated TC, LDL-C, and apoB (P = .03, P = .01 and P = .01, respectively). CONCLUSIONS: AHINREM was independently associated with the greatest alterations in serum lipids, including TC, LDL-C, and apoB.
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