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Sanchez-Azofra A, Orr JE, Sanz-Rubio D, Marin-Oto M, Alarcon-Sisamon S, Vicente E, Ancochea J, Soriano JB, DeYoung P, Azarbarzin A, Malhotra A, Marin JM. Apnea-Specific Pulse-Rate Response is Associated With Early Subclinical Atherosclerosis in Obstructive Sleep Apnea. Arch Bronconeumol 2024:S0300-2896(24)00242-4. [PMID: 39084963 DOI: 10.1016/j.arbres.2024.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/15/2024] [Accepted: 07/02/2024] [Indexed: 08/02/2024]
Abstract
INTRODUCTION In patients with obstructive sleep apnea (OSA), novel metrics such as hypoxic burden (HB) and sleep apnea-specific pulse-rate response (ΔHR) may better correlate with cardiovascular diseases (CVD) than the apnea-hypopnea index (AHI). This manuscript aims to assess the correlation between ΔHR and HB with subclinical atherosclerosis in patients with OSA, testing the hypothesis that elevated ΔHR and HB are associated with subclinical atherosclerosis development. METHODS In a prospective study, individuals aged 20-65 years with suspected OSA without known comorbidities were consecutively recruited and defined as OSA (AHI≥5events/h) or healthy controls. Using bilateral carotid ultrasonography, common carotid intima-media thickness (CIMT) was assessed and the identification of at least one atheromatous plaque defined the presence of subclinical atherosclerosis. ΔHR, and HB were derived from pulse-oximetry. RESULTS We studied 296 patients of age 45±10 years old, of whom 28% were women, and with a BMI of 30.3±5.3kg/m2. Overall, 245 had OSA and 51 were healthy controls. After controlling for confounding variables higher ΔHR but not HB, was associated with higher CIMT (p=0.006) and higher time spent with oxygen saturation below 90% (T90) was associated with an increase in carotid atheroma plaques (p=0.032). When stratifying OSA based on HB tertiles, we observed that within tertile 2 of HB, an increase in ΔHR was associated with larger CIMT (p=0.017). CONCLUSION A higher ΔHR is associated with an increase in CIMT among adult patients with OSA. This study suggests that ΔHR could be a biomarker of risk for CVD in patients with OSA.
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Affiliation(s)
- Ana Sanchez-Azofra
- Division of Pulmonary, Critical Care, and Sleep Medicine and Physiology, Department of Medicine, University of California San Diego, 9500 Gilman Dr, La Jolla, CA 92093, USA; Division of Pulmonary Medicine, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Calle Diego de Leon 62, 28006 Madrid, Spain.
| | - Jeremy E Orr
- Division of Pulmonary, Critical Care, and Sleep Medicine and Physiology, Department of Medicine, University of California San Diego, 9500 Gilman Dr, La Jolla, CA 92093, USA
| | - David Sanz-Rubio
- Translational Research Unit, IIS Aragón, Hospital Universitario Miguel Servet, Avda. San Juan Bosco 13, 50009 Zaragoza, Spain
| | - Marta Marin-Oto
- Translational Research Unit, IIS Aragón, Hospital Universitario Miguel Servet, Avda. San Juan Bosco 13, 50009 Zaragoza, Spain; Department of Medicine, Faculty of Medicine, University of Zaragoza, Edificio A, 50009 Zaragoza, Spain
| | - Sergio Alarcon-Sisamon
- Translational Research Unit, IIS Aragón, Hospital Universitario Miguel Servet, Avda. San Juan Bosco 13, 50009 Zaragoza, Spain
| | - Eugenio Vicente
- Translational Research Unit, IIS Aragón, Hospital Universitario Miguel Servet, Avda. San Juan Bosco 13, 50009 Zaragoza, Spain
| | - Julio Ancochea
- Division of Pulmonary Medicine, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Calle Diego de Leon 62, 28006 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Joan B Soriano
- Division of Pulmonary Medicine, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Calle Diego de Leon 62, 28006 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Pamela DeYoung
- Division of Pulmonary, Critical Care, and Sleep Medicine and Physiology, Department of Medicine, University of California San Diego, 9500 Gilman Dr, La Jolla, CA 92093, USA
| | - Ali Azarbarzin
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital and Harvard Medical School, Harvard University, 75 Francis St, 02115 Boston, MA, USA
| | - Atul Malhotra
- Division of Pulmonary, Critical Care, and Sleep Medicine and Physiology, Department of Medicine, University of California San Diego, 9500 Gilman Dr, La Jolla, CA 92093, USA
| | - Jose M Marin
- Translational Research Unit, IIS Aragón, Hospital Universitario Miguel Servet, Avda. San Juan Bosco 13, 50009 Zaragoza, Spain; Department of Medicine, Faculty of Medicine, University of Zaragoza, Edificio A, 50009 Zaragoza, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
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Roberge P, Ruel J, Bégin-Drolet A, Lemay J, Gakwaya S, Masse JF, Sériès F. Preliminary Assessment of an Ambulatory Device Dedicated to Upper Airway Muscle Training in Patients With Sleep Apnea: Proof-of-Concept Study. JMIR BIOMEDICAL ENGINEERING 2024; 9:e51901. [PMID: 38875673 PMCID: PMC11058550 DOI: 10.2196/51901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/20/2024] [Accepted: 01/31/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND Obstructive sleep apnea/hypopnea syndrome (OSAHS) is a prevalent condition affecting a substantial portion of the global population, with its prevalence increasing over the past 2 decades. OSAHS is characterized by recurrent upper airway (UA) closure during sleep, leading to significant impacts on quality of life and heightened cardiovascular and metabolic morbidity. Despite continuous positive airway pressure (CPAP) being the gold standard treatment, patient adherence remains suboptimal due to various factors, such as discomfort, side effects, and treatment unacceptability. OBJECTIVE Considering the challenges associated with CPAP adherence, an alternative approach targeting the UA muscles through myofunctional therapy was explored. This noninvasive intervention involves exercises of the lips, tongue, or both to improve oropharyngeal functions and mitigate the severity of OSAHS. With the goal of developing a portable device for home-based myofunctional therapy with continuous monitoring of exercise performance and adherence, the primary outcome of this study was the degree of completion and adherence to a 4-week training session. METHODS This proof-of-concept study focused on a portable device that was designed to facilitate tongue and lip myofunctional therapy and enable precise monitoring of exercise performance and adherence. A clinical study was conducted to assess the effectiveness of this program in improving sleep-disordered breathing. Participants were instructed to perform tongue protrusion, lip pressure, and controlled breathing as part of various tasks 6 times a week for 4 weeks, with each session lasting approximately 35 minutes. RESULTS Ten participants were enrolled in the study (n=8 male; mean age 48, SD 22 years; mean BMI 29.3, SD 3.5 kg/m2; mean apnea-hypopnea index [AHI] 20.7, SD 17.8/hour). Among the 8 participants who completed the 4-week program, the overall compliance rate was 91% (175/192 sessions). For the tongue exercise, the success rate increased from 66% (211/320 exercises; SD 18%) on the first day to 85% (272/320 exercises; SD 17%) on the last day (P=.05). AHI did not change significantly after completion of training but a noteworthy correlation between successful lip exercise improvement and AHI reduction in the supine position was observed (Rs=-0.76; P=.03). These findings demonstrate the potential of the device for accurately monitoring participants' performance in lip and tongue pressure exercises during myofunctional therapy. The diversity of the training program (it mixed exercises mixed training games), its ability to provide direct feedback for each exercise to the participants, and the easy measurement of treatment adherence are major strengths of our training program. CONCLUSIONS The study's portable device for home-based myofunctional therapy shows promise as a noninvasive alternative for reducing the severity of OSAHS, with a notable correlation between successful lip exercise improvement and AHI reduction, warranting further development and investigation.
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Affiliation(s)
- Patrice Roberge
- Mechanical Engineering Department, Université Laval, Quebec City, QC, Canada
| | - Jean Ruel
- Mechanical Engineering Department, Université Laval, Quebec City, QC, Canada
| | - André Bégin-Drolet
- Mechanical Engineering Department, Université Laval, Quebec City, QC, Canada
| | - Jean Lemay
- Mechanical Engineering Department, Université Laval, Quebec City, QC, Canada
| | - Simon Gakwaya
- Centre de recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada
| | - Jean-François Masse
- Centre de recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada
| | - Frédéric Sériès
- Centre de recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada
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Yan B, Gao Y, Zhang Z, Shi T, Chen Q. Nocturnal oxygen saturation is associated with all-cause mortality: a community-based study. J Clin Sleep Med 2024; 20:229-235. [PMID: 37772691 PMCID: PMC10835782 DOI: 10.5664/jcsm.10838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 09/30/2023]
Abstract
STUDY OBJECTIVES Observational studies have demonstrated the association between the single-point measurement of oxygen saturation (SpO2) level and mortality in the general population. This study aimed to evaluate whether nocturnal SpO2 level could predict all-cause mortality in a community-based population. METHODS The study samples were obtained from the Sleep Heart Health Study, which included 2,280 men and 2,606 women (mean age, 63.8 ± 11.1 years). A pulse oximeter based on overnight in-home polysomnography was used to monitor SpO2 levels during total sleep time (SpO2-TOTAL). Multivariable Cox proportional hazards analysis was performed to examine the association between nocturnal SpO2 and all-cause mortality. RESULTS During the follow-up period of 10.7 ± 3.0 years, 1,110 (22.7%) people died. After adjusting for confounding factors, multivariable Cox regression analysis showed that the average SpO2-TOTAL (hazard ratio [HR] 0.93; 95% confidence interval [CI] 0.90-0.96, P < .001) was associated with all-cause mortality. These findings remained stable in individuals with low and high apnea-hypopnea index levels. Additionally, maximum SpO2-TOTAL (HR, 0.91; 95% CI, 0.87-0.96; P = .001) and minimum SpO2-TOTAL (HR, 0.98; 95% CI, 0.97-0.99; P = .001) could predict all-cause mortality. A significant association between nocturnal hypoxemia and all-cause mortality was also observed. CONCLUSIONS Our findings highlight the importance of monitoring nocturnal SpO2 level and improving hypoxemia in the general populations. CITATION Yan B, Gao Y, Zhang Z, Shi T, Chen Q. Nocturnal oxygen saturation is associated with all-cause mortality: a community-based study. J Clin Sleep Med. 2024;20(2):229-235.
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Affiliation(s)
- Bin Yan
- Department of Clinical Research Center, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yang Gao
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zhanqin Zhang
- Department of Anesthesiology, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Tao Shi
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Qiang Chen
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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Korkalainen H, Kainulainen S, Islind AS, Óskarsdóttir M, Strassberger C, Nikkonen S, Töyräs J, Kulkas A, Grote L, Hedner J, Sund R, Hrubos-Strom H, Saavedra JM, Ólafsdóttir KA, Ágústsson JS, Terrill PI, McNicholas WT, Arnardóttir ES, Leppänen T. Review and perspective on sleep-disordered breathing research and translation to clinics. Sleep Med Rev 2024; 73:101874. [PMID: 38091850 DOI: 10.1016/j.smrv.2023.101874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 09/18/2023] [Accepted: 11/09/2023] [Indexed: 01/23/2024]
Abstract
Sleep-disordered breathing, ranging from habitual snoring to severe obstructive sleep apnea, is a prevalent public health issue. Despite rising interest in sleep and awareness of sleep disorders, sleep research and diagnostic practices still rely on outdated metrics and laborious methods reducing the diagnostic capacity and preventing timely diagnosis and treatment. Consequently, a significant portion of individuals affected by sleep-disordered breathing remain undiagnosed or are misdiagnosed. Taking advantage of state-of-the-art scientific, technological, and computational advances could be an effective way to optimize the diagnostic and treatment pathways. We discuss state-of-the-art multidisciplinary research, review the shortcomings in the current practices of SDB diagnosis and management in adult populations, and provide possible future directions. We critically review the opportunities for modern data analysis methods and machine learning to combine multimodal information, provide a perspective on the pitfalls of big data analysis, and discuss approaches for developing analysis strategies that overcome current limitations. We argue that large-scale and multidisciplinary collaborative efforts based on clinical, scientific, and technical knowledge and rigorous clinical validation and implementation of the outcomes in practice are needed to move the research of sleep-disordered breathing forward, thus increasing the quality of diagnostics and treatment.
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Affiliation(s)
- Henri Korkalainen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
| | - Samu Kainulainen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland
| | - Anna Sigridur Islind
- Department of Computer Science, Reykjavik University, Reykjavik, Iceland; Reykjavik University Sleep Institute, Reykjavik University, Reykjavik, Iceland
| | - María Óskarsdóttir
- Department of Computer Science, Reykjavik University, Reykjavik, Iceland
| | - Christian Strassberger
- Centre for Sleep and Wake Disorders, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - Sami Nikkonen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland
| | - Juha Töyräs
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; School of Electrical Engineering and Computer Science, The University of Queensland, Brisbane, Australia; Science Service Center, Kuopio University Hospital, Kuopio, Finland
| | - Antti Kulkas
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Department of Clinical Neurophysiology, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Ludger Grote
- Centre for Sleep and Wake Disorders, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden; Sleep Disorders Centre, Pulmonary Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jan Hedner
- Centre for Sleep and Wake Disorders, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden; Sleep Disorders Centre, Pulmonary Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Reijo Sund
- School of Medicine, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - Harald Hrubos-Strom
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Ear, Nose and Throat Surgery, Akershus University Hospital, Lørenskog, Norway
| | - Jose M Saavedra
- Reykjavik University Sleep Institute, Reykjavik University, Reykjavik, Iceland; Physical Activity, Physical Education, Sport and Health (PAPESH) Research Group, Department of Sports Science, Reykjavik University, Reykjavik, Iceland
| | | | | | - Philip I Terrill
- School of Electrical Engineering and Computer Science, The University of Queensland, Brisbane, Australia
| | - Walter T McNicholas
- School of Medicine, University College Dublin, and Department of Respiratory and Sleep Medicine, St Vincent's Hospital Group, Dublin Ireland
| | - Erna Sif Arnardóttir
- Reykjavik University Sleep Institute, Reykjavik University, Reykjavik, Iceland; Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland
| | - Timo Leppänen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland; School of Electrical Engineering and Computer Science, The University of Queensland, Brisbane, Australia
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Arnaud C, Billoir E, de Melo Junior AF, Pereira SA, O'Halloran KD, Monteiro EC. Chronic intermittent hypoxia-induced cardiovascular and renal dysfunction: from adaptation to maladaptation. J Physiol 2023; 601:5553-5577. [PMID: 37882783 DOI: 10.1113/jp284166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/12/2023] [Indexed: 10/27/2023] Open
Abstract
Chronic intermittent hypoxia (CIH) is the dominant pathological feature of human obstructive sleep apnoea (OSA), which is highly prevalent and associated with cardiovascular and renal diseases. CIH causes hypertension, centred on sympathetic nervous overactivity, which persists following removal of the CIH stimulus. Molecular mechanisms contributing to CIH-induced hypertension have been carefully delineated. However, there is a dearth of knowledge on the efficacy of interventions to ameliorate high blood pressure in established disease. CIH causes endothelial dysfunction, aberrant structural remodelling of vessels and accelerates atherosclerotic processes. Pro-inflammatory and pro-oxidant pathways converge on disrupted nitric oxide signalling driving vascular dysfunction. In addition, CIH has adverse effects on the myocardium, manifesting atrial fibrillation, and cardiac remodelling progressing to contractile dysfunction. Sympatho-vagal imbalance, oxidative stress, inflammation, dysregulated HIF-1α transcriptional responses and resultant pro-apoptotic ER stress, calcium dysregulation, and mitochondrial dysfunction conspire to drive myocardial injury and failure. CIH elaborates direct and indirect effects in the kidney that initially contribute to the development of hypertension and later to chronic kidney disease. CIH-induced morphological damage of the kidney is dependent on TLR4/NF-κB/NLRP3/caspase-1 inflammasome activation and associated pyroptosis. Emerging potential therapies related to the gut-kidney axis and blockade of aryl hydrocarbon receptors (AhR) are promising. Cardiorenal outcomes in response to intermittent hypoxia present along a continuum from adaptation to maladaptation and are dependent on the intensity and duration of exposure to intermittent hypoxia. This heterogeneity of OSA is relevant to therapeutic treatment options and we argue the need for better stratification of OSA phenotypes.
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Affiliation(s)
- Claire Arnaud
- Université Grenoble-Alpes INSERM U1300, Laboratoire HP2, Grenoble, France
| | - Emma Billoir
- Université Grenoble-Alpes INSERM U1300, Laboratoire HP2, Grenoble, France
| | | | - Sofia A Pereira
- iNOVA4Health, NOVA Medical School, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Ken D O'Halloran
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Emilia C Monteiro
- iNOVA4Health, NOVA Medical School, Universidade NOVA de Lisboa, Lisboa, Portugal
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Shapiro I, Stein J, MacRae C, O'Reilly M. Pulse oximetry values from 33,080 participants in the Apple Heart & Movement Study. NPJ Digit Med 2023; 6:134. [PMID: 37500721 PMCID: PMC10374661 DOI: 10.1038/s41746-023-00851-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 05/24/2023] [Indexed: 07/29/2023] Open
Abstract
Wearable devices that include pulse oximetry (SpO2) sensing afford the opportunity to capture oxygen saturation measurements from large cohorts under naturalistic conditions. We report here a cross-sectional analysis of 72 million SpO2 values collected from 33,080 individual participants in the Apple Heart and Movement Study, stratified by age, sex, body mass index (BMI), home altitude, and other demographic variables. Measurements aggregated by hour of day into 24-h SpO2 profiles exhibit similar circadian patterns for all demographic groups, being approximately sinusoidal with nadir near midnight local time, zenith near noon local time, and mean 0.8% lower saturation during overnight hours. Using SpO2 measurements averaged for each subject into mean nocturnal and daytime SpO2 values, we employ multivariate ordinary least squares regression to quantify population-level trends according to demographic factors. For the full cohort, regression coefficients obtained from models fit to daytime SpO2 are in close quantitative agreement with the corresponding values from published reference models for awake arterial oxygen saturation measured under controlled laboratory conditions. Regression models stratified by sex reveal significantly different age- and BMI-dependent SpO2 trends for females compared with males, although constant terms and regression coefficients for altitude do not differ between sexes. Incorporating categorical variables encoding self-reported race/ethnicity into the full-cohort regression models identifies small but statistically significant differences in daytime SpO2 (largest coefficient corresponding to 0.13% lower SpO2, for Hispanic study participants compared to White participants), but no significant differences between groups for nocturnal SpO2. Additional stratified analysis comparing regression models fit independently to subjects in each race/ethnicity group is suggestive of small differences in age- and sex-dependent trends, but indicates no significant difference in constant terms between any race/ethnicity groups for either daytime or nocturnal SpO2. The large diverse study population and study design employing automated background SpO2 measurements spanning the full 24-h circadian cycle enables the establishment of healthy population reference trends outside of clinical settings.
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Affiliation(s)
| | | | - Calum MacRae
- Cardiovascular Medicine Division, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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Xia X, Niu X, Chan K, Xu H, Shen Z, Cao JJ, Wu S, Qiu H, Ho KF. Effects of indoor air purification intervention on blood pressure, blood‑oxygen saturation, and heart rate variability: A double-blinded cross-over randomized controlled trial of healthy young adults. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162516. [PMID: 36868269 DOI: 10.1016/j.scitotenv.2023.162516] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 02/14/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
The use of indoor air purifier (IAP) has received growing attention as a mitigation strategy for reducing indoor air pollution, but the evidence on their cardiovascular benefits is unclear. This study aims to evaluate whether the use of IAP can reduce the adverse effects of indoor particulate matter (PM) on cardiovascular health among young healthy population. A randomized, double-blind, cross-over, IAP intervention of 38 college students was conducted. The participants were assigned into two groups to receive the true and sham IAPs for 36 h in random order. Systolic and diastolic blood pressure (SBP; DBP), blood oxygen saturation (SpO2), heart rate variability (HRV) and indoor size-fractioned particulate matter (PM) were real-time monitored throughout the intervention. We found that IAP could reduce indoor PM by 41.7-50.5 %. Using IAP was significantly associated with a reduction of 2.96 mmHg (95 % CI: -5.71, -0.20) in SBP. Increased PM was significantly associated with increased SBP (e.g., 2.17 mmHg [0.53, 3.81], 1.73 mmHg [0.32, 3.14] and 1.51 mmHg [0.28, 2.75] for an IQR increment of PM1 [16.7 μg/m3], PM2.5 [20.6 μg/m3] and PM10 [37.9 μg/m3] at lag 0-2 h, respectively) and decreased SpO2 (-0.44 % [-0.57, -0.29], -0.41 % [-0.53, -0.30] and - 0.40 % [-0.51, -0.30] for PM1, PM2.5 and PM10 at lag 0-1 h, respectively), which could last for about 2 h. Using IAPs could halve indoor PM levels, even in relatively low air pollution settings. The exposure-response relationships suggested that the benefits of IAPs on BP may only be observed when indoor PM exposure is reduced to a certain level.
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Affiliation(s)
- Xi Xia
- School of Public Health, Shaanxi University of Chinese Medicine, China
| | - Xinyi Niu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, China.
| | - Kahung Chan
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, UK
| | - Hongmei Xu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - ZhenXing Shen
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Jun-Ji Cao
- Key Laboratory of Aerosol Chemistry & Physics (KLACP), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
| | - ShaoWei Wu
- School of Public Health, Xi'an Jiaotong University, China
| | - Hong Qiu
- Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Hong Kong
| | - Kin-Fai Ho
- The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong.
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Effect of menopause and age on vascular impairment. Maturitas 2023; 169:46-52. [PMID: 36696833 DOI: 10.1016/j.maturitas.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 12/05/2022] [Accepted: 01/06/2023] [Indexed: 01/19/2023]
Abstract
AIMS The prevalence of cardiovascular diseases increases in women after menopause. The aim of the study was to determine the impact of conventional cardiovascular risk factors such as age, blood pressure, smoking, cholesterol, obesity, and glucose balance, but also menopausal state and sleep-disordered breathing on vascular impairment during menopausal transition. METHODS 89 women initiated the study and 74 of them participated in the 10-year follow-up. Cardiovascular disease risk factor assessments, ultrasound measurements of brachial artery function, including nitroglycerin-mediated vasodilatation and flow-mediated endothelium-dependent vasodilation, and sleep studies were repeated at baseline and at 5-year and 10-year follow-ups. RESULTS Over the study period, all the cardiovascular disease risk estimates increased. Both flow-mediated endothelium-dependent vasodilatation (decline 55 %) and nitroglycerin-mediated vasodilatation (decline 18 %) worsened over the 10 years (p < 0.001). Vascular function was not associated with menopausal state (determined with follicle stimulating hormone). Systolic blood pressure (p = 0.009) and smoking (p = 0.006) at baseline were negatively associated with nitroglycerin-mediated vasodilatation at 5-year follow-up and the use of hormonal therapy at 5-year follow-up was positively associated with concurrent nitroglycerin-mediated vasodilatation (p = 0.041). Intermittent nocturnal hypoxemia at baseline was associated with flow-mediated endothelium-dependent vasodilatation at 10-year follow-up (p = 0.043). High body mass index and impaired glucose balance at 5-year follow-up were associated with nitroglycerin-mediated vasodilatation decline at 10-year follow-up (p = 0.022 and p = 0.037, respectively). CONCLUSIONS We demonstrate how cardiovascular risk factors and vascular function evolve during menopausal transition. Although menopause was not associated with vascular impairment, short-term improvement in vascular function was observed in those using menopausal hormonal therapy. Intermittent nocturnal hypoxemia, obesity and impaired glucose control are early predictors of vascular decline during postmenopause.
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Kurniansyah N, Wallace DA, Zhang Y, Yu B, Cade B, Wang H, Ochs-Balcom HM, Reiner AP, Ramos AR, Smith JD, Cai J, Daviglus M, Zee PC, Kaplan R, Kooperberg C, Rich SS, Rotter JI, Gharib SA, Redline S, Sofer T. An integrated multi-omics analysis of sleep-disordered breathing traits implicates P2XR4 purinergic signaling. Commun Biol 2023; 6:125. [PMID: 36721044 PMCID: PMC9889381 DOI: 10.1038/s42003-023-04520-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 01/23/2023] [Indexed: 02/01/2023] Open
Abstract
Sleep Disordered Breathing (SDB) is a common disease associated with increased risk for cardiometabolic, cardiovascular, and cognitive diseases. How SDB affects the molecular environment is still poorly understood. We study the association of three SDB measures with gene expression measured using RNA-seq in multiple blood tissues from the Multi-Ethnic Study of Atherosclerosis. We develop genetic instrumental variables for the associated transcripts as polygenic risk scores (tPRS), then generalize and validate the tPRS in the Women's Health Initiative. We measure the associations of the validated tPRS with SDB and serum metabolites in Hispanic Community Health Study/Study of Latinos. Here we find differential gene expression by blood cell type in relation to SDB traits and link P2XR4 expression to average oxyhemoglobin saturation during sleep and butyrylcarnitine (C4) levels. These findings can be used to develop interventions to alleviate the effect of SDB on the human molecular environment.
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Affiliation(s)
- Nuzulul Kurniansyah
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
| | - Danielle A Wallace
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
| | - Ying Zhang
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
| | - Bing Yu
- Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Brian Cade
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
- The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Heming Wang
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
- The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Heather M Ochs-Balcom
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Alexander P Reiner
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, NY, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Alberto R Ramos
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Joshua D Smith
- Northwest Genomic Center, University of Washington, Seattle, WA, USA
| | - Jianwen Cai
- Department of Biostatistics, University of North Carolina, at Chapel Hill, NC, USA
| | - Martha Daviglus
- Institute for Minority Health Research, University of Illinois at Chicago, Chicago, IL, USA
| | - Phyllis C Zee
- Division of Sleep Medicine, Department of Neurology, Northwestern University, Chicago, IL, USA
| | - Robert Kaplan
- Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Epidemiology & Population Health, Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Charles Kooperberg
- Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Stephen S Rich
- Center for Public Health Genomics, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Jerome I Rotter
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Sina A Gharib
- Computational Medicine Core, Center for Lung Biology, UW Medicine Sleep Center, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Susan Redline
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Tamar Sofer
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA.
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA.
- Departments of Medicine and of Biostatistics, Harvard University, Boston, MA, USA.
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10
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Müller MB, Stihl C, Schmid A, Hirschberger S, Mitsigiorgi R, Holzer M, Patscheider M, Weiss BG, Reichel C, Hübner M, Uhl B. A novel OSA-related model of intermittent hypoxia in endothelial cells under flow reveals pronounced inflammatory pathway activation. Front Physiol 2023; 14:1108966. [PMID: 37123277 PMCID: PMC10133699 DOI: 10.3389/fphys.2023.1108966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 03/31/2023] [Indexed: 05/02/2023] Open
Abstract
Obstructive sleep apnea (OSA) is a common sleep-related breathing disorder characterized by recurrent episodes of upper airway obstruction and subsequent hypoxia. In patients with OSA, severity and number of these hypoxic events positively correlate with the extent of associated cardiovascular pathology. The molecular mechanisms underlying intermittent hypoxia (IH)-driven cardiovascular disease in OSA, however, remain poorly understood-partly due to the lack of adequate experimental models. Here, we present a novel experimental approach that utilizes primary human endothelial cells cultivated under shear stress. Oxygen partial pressure dynamics were adopted in our in vitro model according to the desaturation-reoxygenation patterns identified in polysomnographic data of severe OSA patients (n = 10, with 892 severe desaturations, SpO2<80%). Using western blot analysis, we detected a robust activation of the two major inflammatory pathways ERK and NF-κB in endothelial cells, whereas no HIF1α and HIF2α protein stabilization was observed. In line with these findings, mRNA and protein expression of the pro-inflammatory adhesion and signaling molecule ICAM-1 and the chemokine CCL2 were significantly increased. Hence, we established a novel in vitro model for deciphering OSA-elicited effects on the vascular endothelium. First data obtained in this model point to the endothelial activation of pro-inflammatory rather than hypoxia-associated pathways in OSA. Future studies in this model might contribute to the development of targeted strategies against OSA-induced, secondary cardiovascular disease.
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Affiliation(s)
- Martin B. Müller
- Department of Anaesthesiology and Intensive Care Medicine, Research Unit Molecular Medicine, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
- Walter Brendel Center of Experimental Medicine (WBex), Ludwig-Maximilians-University München (LMU), Munich, Germany
- *Correspondence: Martin B. Müller,
| | - Clemens Stihl
- Department of Otorhinolaryngology, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Annika Schmid
- Walter Brendel Center of Experimental Medicine (WBex), Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Simon Hirschberger
- Department of Anaesthesiology and Intensive Care Medicine, Research Unit Molecular Medicine, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
- Walter Brendel Center of Experimental Medicine (WBex), Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Rea Mitsigiorgi
- Walter Brendel Center of Experimental Medicine (WBex), Ludwig-Maximilians-University München (LMU), Munich, Germany
- Department of Otorhinolaryngology, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Martin Holzer
- Department of Otorhinolaryngology, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Martin Patscheider
- Department of Otorhinolaryngology, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Bernhard G. Weiss
- Department of Otorhinolaryngology, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Christoph Reichel
- Walter Brendel Center of Experimental Medicine (WBex), Ludwig-Maximilians-University München (LMU), Munich, Germany
- Department of Otorhinolaryngology, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Max Hübner
- Department of Anaesthesiology and Intensive Care Medicine, Research Unit Molecular Medicine, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
- Walter Brendel Center of Experimental Medicine (WBex), Ludwig-Maximilians-University München (LMU), Munich, Germany
| | - Bernd Uhl
- Walter Brendel Center of Experimental Medicine (WBex), Ludwig-Maximilians-University München (LMU), Munich, Germany
- Department of Otorhinolaryngology, LMU University Hospital, Ludwig-Maximilians-University München (LMU), Munich, Germany
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11
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Sahib A, Roy B, Kang D, Aysola RS, Wen E, Kumar R. Relationships between brain tissue damage, oxygen desaturation, and disease severity in obstructive sleep apnea evaluated by diffusion tensor imaging. J Clin Sleep Med 2022; 18:2713-2721. [PMID: 35929597 PMCID: PMC9713923 DOI: 10.5664/jcsm.10192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/14/2022]
Abstract
STUDY OBJECTIVES Patients with obstructive sleep apnea (OSA) show brain injury in sites responsible for autonomic, cognitive, and respiratory functions. Brain changes in OSA may vary with disease severity as assessed by the apnea-hypopnea index (AHI), which does not provide information about the apnea depth and length in contrast to oxygen desaturation. Although significant associations with brain injury and AHI are known in OSA, it is unclear whether AHI or the extent of oxygen desaturations better correlate with brain damage. We evaluated associations between brain changes, AHI, and oxygen desaturation using diffusion tensor imaging-based measures. METHODS We acquired diffusion tensor imaging data from 19 patients with OSA using a 3.0-Tesla MRI scanner and calculated, normalized, and smoothed mean, axial, and radial diffusivity maps that were used for correlations between brain changes, oxygen desaturation, and AHI values. RESULTS Positive correlations with extent of injury (mean, axial, and radial diffusivity values) and AHI appeared in the frontal areas, cingulate and insula, amygdala, hippocampus, and basal pons, and negative associations emerged in the putamen, internal-capsule, globus-pallidus, and cerebellar cortices. Regional diffusivity values and oxygen desaturation showed positive correlations in the cingulate, frontal, putamen, and cerebellar sites, and negative relationships in several areas, including the occipital cortex. CONCLUSIONS Patients with OSA show negative and positive correlations, indicated by increased and decreased diffusivity values, resulting from chronic and acute changes in those areas. The extent of injury in OSA partially depends on the extent of AHI and oxygen desaturation, with the effects representing continued development from acute to chronic processes. CITATION Sahib A, Roy B, Kang D, Aysola RS, Wen E, Kumar R. Relationships between brain tissue damage, oxygen desaturation, and disease severity in obstructive sleep apnea evaluated by diffusion tensor imaging. J Clin Sleep Med. 2022;18(12):2713-2721.
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Affiliation(s)
- Ashish Sahib
- Department of Anesthesiology, University of California Los Angeles, Los Angeles, California
| | - Bhaswati Roy
- Department of Anesthesiology, University of California Los Angeles, Los Angeles, California
| | - Daniel Kang
- Department of Medicine, University of California Los Angeles, Los Angeles, California
| | - Ravi S. Aysola
- Department of Medicine, University of California Los Angeles, Los Angeles, California
| | - Eugenia Wen
- Department of Medicine, University of California Los Angeles, Los Angeles, California
| | - Rajesh Kumar
- Department of Anesthesiology, University of California Los Angeles, Los Angeles, California
- Department of Radiological Sciences, University of California Los Angeles, Los Angeles, California
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California
- Brain Research Institute, University of California Los Angeles, Los Angeles, California
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12
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Huang J, Xie H, Yang Y, Chen L, Lin T, Wang B, Lin QC. The role of ferroptosis and endoplasmic reticulum stress in intermittent hypoxia-induced myocardial injury. Sleep Breath 2022; 27:1005-1011. [DOI: 10.1007/s11325-022-02692-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/17/2022] [Accepted: 08/04/2022] [Indexed: 11/27/2022]
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13
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Early signs of sleep-disordered breathing in healthy women predict carotid intima-media thickening after 10 years. Sleep Med 2022; 96:8-13. [DOI: 10.1016/j.sleep.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/19/2022] [Accepted: 04/18/2022] [Indexed: 11/21/2022]
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14
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Lavie L, Si-On E, Hoffman A. Markers of Carotid Plaque Destabilization in Patients With Sleep-Disordered Breathing. Front Neurol 2022; 13:811916. [PMID: 35250817 PMCID: PMC8888822 DOI: 10.3389/fneur.2022.811916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/14/2022] [Indexed: 11/25/2022] Open
Abstract
Sleep-disordered breathing (SDB) is a nightly respiratory condition characterized by intermittent hypoxia, leading to oxidative stress, inflammation, and atherosclerosis. However, most cellular markers of human carotid plaques in SDB have not yet been assessed. We aimed at characterizing the cellular, inflammatory, and nitro-oxidative stress markers in carotid plaques obtained from 25 patients undergoing endarterectomy and screened for SDB. Sleep studies were performed during their preoperative hospitalization night using the Watch-PAT 100 device. Oxygen desaturation index (ODI) was used for dividing patients into two groups. Fourteen patients with ODI >5 were designated as SDB and 11 patients with ODI ≤ 5 as non-SDB. Demographics, comorbidities, cardiovascular risk factors, and medications were recorded. Cellular markers in plaques were analyzed by immunofluorescence using confocal microscopy. The expression of neutrophils was identified by CD66b+ and neutrophil elastase, macrophage-foam cells were identified by CD163+, and scavenger receptors by CD68+ and CD36+ expression. Additional markers included 3-nitrotyrosine, endothelial CD31, and smooth muscle cell-actin (SMC-actin). Plaques' lipids were determined by immunohistochemistry with Oil Red O staining. Notably, significantly higher values were found for SDB as compared to patients with non-SDB for 3-nitrotyrosine (p <0.004) and intracellular lipids' content (p <0.02), whereas SMC-actin was lower (p <0.006). There were no significant differences between patients with carotid-associated symptoms (symptomatic) and patients without carotid-associated symptoms (asymptomatic). However, a sub-group of symptomatic patients with co-existent SDB expressed the highest 3-nitrotyrosin, and intracellular lipids levels, and the lowest SMC-actin levels, whereas non-SDB/asymptomatic patients expressed the lowest 3-nitrotyrosin and lipids levels and the highest SMS-actin levels among all patients. Accordingly, ODI was lowest in non-SDB/asymptomatic patients and highest in SDB/symptomatic. In conclusion, plaques of patients with SDB were characterized by markedly increased levels of 3-nitrotyrosine and intracellular lipids content. Conversely, SMC-actin levels were significantly lower. These three markers, such as increased 3-nitrotyrosine and intracellular lipids and decreased SMC-actin are associated with plaque vulnerability and instability. These findings are in line with earlier reports demonstrating increased intima-media thickness in large cohorts of sleep apnea and patients with SDB, and thus, may indicate a higher susceptibility to plaque vulnerability and rapture in patients with SDB.
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Affiliation(s)
- Lena Lavie
- Unit of Anatomy and Cell Biology, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- *Correspondence: Lena Lavie
| | - Erez Si-On
- Department of Vascular Surgery and Transplantation, Rambam Health Care Campus, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Aaron Hoffman
- Department of Vascular Surgery and Transplantation, Rambam Health Care Campus, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
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15
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Agaltsov MV, Drapkina OM. Obstructive sleep apnea and cardiovascular comorbidity: common pathophysiological mechanisms to cardiovascular disease. RATIONAL PHARMACOTHERAPY IN CARDIOLOGY 2021. [DOI: 10.20996/1819-6446-2021-08-05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Obstructive sleep apnea (OSA) is associated with many cardiovascular and metabolic diseases. Sleep apnea causes intermittent hypoxemia, chest pressure fluctuations and a reaction from the cerebral cortex in the form of a short awakening during sleep (EEG-activation). The consequences of pathological pathways are studied in experimental models involving cell cultures, animals, and healthy volunteers. At present, the negative impact of intermittent hypoxemia on a variety of pathophysiological disorders of the heart and blood vessels (vascular tone fluctuations, thickening of the intimamedia complex in the vascular wall, direct damaging effect on the myocardium) has a great evidence base. Two other pathological components of OSA (pressure fluctuations and EEG-activation) can also affect cardiovascular system, mainly affecting the increase in blood pressure and changing cardiac hemodynamics. Although these reactions are considered separately in the review, with the development of sleep apnea they occur sequentially and are closely interrelated. As a result, these pathological pathways trigger further pathophysiological mechanisms acting on the heart and blood vessels. It is known that these include excessive sympathetic activation, inflammation, oxidative stress and metabolic dysregulation. In many respects being links of one process, these mechanisms can trigger damage to the vascular wall, contributing to the formation of atherosclerotic lesions. The accumulated data with varying degrees of reliability confirm the participation of OSA through these processes in the formation of cardiovascular disorders. There are factors limiting direct evidence of this interaction (sleep deprivation, causing similar changes, as well as the inability to share the contribution of other risk factors for cardiovascular diseases, in particular arterial hypertension, obesity, which are often associated with OSA). It is necessary to continue the study of processes that implement the pathological effect of OSA on the cardiovascular system.
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Affiliation(s)
- M. V. Agaltsov
- National Medical Research Center for Therapy and Preventive Medicine
| | - O. M. Drapkina
- National Medical Research Center for Therapy and Preventive Medicine
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16
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Lambeth C, Perri R, Lee S, Verma M, Campbell-Rogers N, Larcos G, Byth K, Kairaitis K, Amis T, Wheatley J. Predictors for carotid and femoral artery intima-media thickness in a non-diabetic sleep clinic cohort. PLoS One 2021; 16:e0252569. [PMID: 34086802 PMCID: PMC8177540 DOI: 10.1371/journal.pone.0252569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 05/15/2021] [Indexed: 12/04/2022] Open
Abstract
Introduction The impact of sleep disordered breathing (SDB) on arterial intima-media thickness (IMT), a surrogate measure for cardiovascular disease, remains uncertain, in part because of the potential for non-SDB vascular risk factor interactions. In the present study, we determined predictors for common carotid (CCA) and femoral (CFA) artery IMT in an adult, sleep clinic cohort where non-SDB vascular risk factors (particularly diabetes) were eliminated or controlled. Methods We recruited 296 participants for polysomnography (standard SDB severity metrics) and CCA/CFA ultrasound examinations, followed by a 12 month vascular risk factor minimisation (RFM) and continuous positive pressure (CPAP) intervention for participants with a range of SDB severity (RFM Sub-Group, n = 157; apnea hyponea index [AHI]: 14.7 (7.2–33.2), median [IQR]). Univariable and multivariable linear regression models determined independent predictors for IMT. Linear mixed effects modelling determined independent predictors for IMT change across the intervention study. P<0.05 was considered significant. Results Age, systolic blood pressure and waist:hip ratio were identified as non-SDB predictive factors for CCA IMT and age, weight and total cholesterol:HDL ratio for CFA IMT. No SDB severity metric emerged as an independent predictor for either CCA or CFA IMT, except in the RFM Sub-Group, where a 2-fold increase in AHI predicted a 2.4% increase in CFA IMT. Across the intervention study, CCA IMT decreased in those who lost weight, but there was no CPAP use interaction. CFA IMT, however, decreased by 12.9% (95%CI 6.8, 18.7%, p = 0.001) in those participants who both lost weight and used CPAP > = 4hours/night. Conclusion We conclude that SDB severity has little impact on CCA IMT values when non-SDB vascular risk factors are minimised or not present. This is the first study, however, to suggest a potential linkage between SDB severity and CFA IMT values. Trial registration Australian New Zealand Clinical Trials Registry, ACTRN12611000250932 and ACTRN12620000694910.
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Affiliation(s)
- Christopher Lambeth
- Ludwig Engel Centre for Respiratory Research, The Westmead Institute for Medical Research, Westmead, Sydney, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
| | - Rita Perri
- Ludwig Engel Centre for Respiratory Research, The Westmead Institute for Medical Research, Westmead, Sydney, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
| | - Sharon Lee
- Ludwig Engel Centre for Respiratory Research, The Westmead Institute for Medical Research, Westmead, Sydney, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
| | - Manisha Verma
- Ludwig Engel Centre for Respiratory Research, The Westmead Institute for Medical Research, Westmead, Sydney, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
| | - Nicole Campbell-Rogers
- Department of Nuclear Medicine and Ultrasound, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
| | - George Larcos
- Department of Nuclear Medicine and Ultrasound, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Karen Byth
- Research and Education Network, Western Sydney Local Health District, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
| | - Kristina Kairaitis
- Ludwig Engel Centre for Respiratory Research, The Westmead Institute for Medical Research, Westmead, Sydney, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Terence Amis
- Ludwig Engel Centre for Respiratory Research, The Westmead Institute for Medical Research, Westmead, Sydney, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- * E-mail:
| | - John Wheatley
- Ludwig Engel Centre for Respiratory Research, The Westmead Institute for Medical Research, Westmead, Sydney, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, Westmead Hospital, Westmead, Sydney, New South Wales, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
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17
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A Phenotypic Approach for Personalised Management of Obstructive Sleep Apnoea. CURRENT OTORHINOLARYNGOLOGY REPORTS 2021. [DOI: 10.1007/s40136-021-00346-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Zeineddine S, Rowley JA, Chowdhuri S. Oxygen Therapy in Sleep-Disordered Breathing. Chest 2021; 160:701-717. [PMID: 33610579 DOI: 10.1016/j.chest.2021.02.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 02/06/2021] [Accepted: 02/08/2021] [Indexed: 11/29/2022] Open
Abstract
Sleep-disordered breathing (SDB) is highly prevalent in adults and leads to significant cardiovascular and neurologic sequelae. Intermittent hypoxia during sleep is a direct consequence of SDB. Administration of nocturnal supplemental oxygen (NSO) has been used as a therapeutic alternative to positive airway pressure (PAP) in SDB. NSO significantly improves oxygen saturation in OSA but is inferior to PAP in terms of reducing apnea severity and may prolong the duration of obstructive apneas. The effect of NSO on daytime sleepiness remains unclear, but NSO may improve physical function-related quality of life in OSA. Its effects on BP reduction remain inconclusive. The effects of NSO vs PAP in OSA with comorbid COPD (overlap syndrome) are unknown. NSO is effective in reducing central sleep apnea related to congestive heart failure; however, its impact on mortality and cardiovascular clinical outcomes are being investigated in an ongoing clinical trial. In conclusion, studies are inconclusive or limited regarding clinical outcomes with oxygen therapy compared with sham or PAP therapy in patients with OSA and overlap syndrome. Oxygen does mitigate central sleep apnea. This review examines the crucial knowledge gaps and suggests future research priorities to clarify the effects of optimal dose and duration of NSO, alone or in combination with PAP, on cardiovascular, sleep, and cognitive outcomes.
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Affiliation(s)
- Salam Zeineddine
- Medical Service, Sleep Medicine Section, John D. Dingell Veterans Affairs Medical Center, Detroit, MI; Division of Pulmonary/Critical Care and Sleep Medicine, Department of Medicine, Wayne State University School of Medicine, Detroit, MI
| | - James A Rowley
- Division of Pulmonary/Critical Care and Sleep Medicine, Department of Medicine, Wayne State University School of Medicine, Detroit, MI
| | - Susmita Chowdhuri
- Medical Service, Sleep Medicine Section, John D. Dingell Veterans Affairs Medical Center, Detroit, MI; Division of Pulmonary/Critical Care and Sleep Medicine, Department of Medicine, Wayne State University School of Medicine, Detroit, MI.
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19
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Sapiña-Beltrán E, Gracia-Lavedan E, Torres G, Gaeta AM, Paredes J, Mayoral A, Fernández E, Bermúdez-López M, Valdivielso JM, Farràs-Salles C, Pamplona R, Lecube A, de Batlle J, Barbé F, Dalmases M. Prevalence of Obstructive Sleep Apnoea and Its Association With Atherosclerotic Plaques in a Cohort of Subjects With Mild-Moderate Cardiovascular Risk. Arch Bronconeumol 2021; 58:490-497. [PMID: 33741145 DOI: 10.1016/j.arbres.2021.01.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Classic cardiovascular risk factors do not explain all the cardiovascular events. Obstructive sleep apnoea (OSA) has been proposed as a potential and prevalent cardiovascular risk factor. Our study aimed to describe the prevalence of OSA in a middle-aged cohort with mild-moderate cardiovascular risk and evaluate its association with atherosclerotic disease. METHODS This is an observational cross-sectional ancillary study of the ILERVAS project which was aimed to study subclinical arterial disease in a cohort with mild-moderate cardiovascular risk. In a sample of consecutive subjects, we performed a sleep study and evaluate OSA prevalence and its association with carotid and femoral atheroma plaques and atherosclerotic burden. RESULTS Overall, 966 subjects with a median age of 57 years (25-75th percentile; 52-62) and a body mass index (BMI) of 28.5kg/m2 (25.6-31.6) were included. Of these, 72.6% (69.7%-75.3%) had OSA (apnoea-hypopnoea index (AHI)≥5/h); 35.7% (32.8%-38.8%) had mild OSA (AHI 5-14.9/h) and 36.9% (33.9%-39.9%) had moderate/severe OSA (AHI≥15/h). Mean oxygen saturation and the percentage of time with oxygen saturation<90% (CT90) were associated with atherosclerotic burden (eβ (95%CI) 0.932 (0.892, 0.974); 1.005 (1.002, 1.009), respectively) and total plaque (OR (95%CI) 0.88 (0.797,0.971); 1.013 (1.004,1.021), respectively). No association with the AHI or oxygen desaturation index was found. CONCLUSIONS This study confirms a high prevalence of OSA in patients with mild-moderate cardiovascular risk and shows an association between atherosclerotic burden, total and femoral plaque with CT90 and mean oxygen saturation, suggesting the importance of OSA-related hypoxaemia in the induction of atherosclerotic disease.
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Affiliation(s)
- Esther Sapiña-Beltrán
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Av. Rovira Roure 80, 25198 Lleida, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Av. Monforte de Lemos, 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Esther Gracia-Lavedan
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Av. Rovira Roure 80, 25198 Lleida, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Av. Monforte de Lemos, 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Gerard Torres
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Av. Rovira Roure 80, 25198 Lleida, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Av. Monforte de Lemos, 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Anna M Gaeta
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Av. Rovira Roure 80, 25198 Lleida, Spain
| | - Judith Paredes
- Oxigen Salud, Homecare Provider, C/ Pere IV, 453, 08020 Barcelona, Spain
| | - Ana Mayoral
- Oxigen Salud, Homecare Provider, C/ Pere IV, 453, 08020 Barcelona, Spain
| | - Elvira Fernández
- Vascular and Renal Translational Research Group, IRBLleida, RedinRen-ISCIII, Av. Rovira Roure 80, 25198 Lleida, Spain
| | - Marcelino Bermúdez-López
- Vascular and Renal Translational Research Group, IRBLleida, RedinRen-ISCIII, Av. Rovira Roure 80, 25198 Lleida, Spain
| | - José Manuel Valdivielso
- Vascular and Renal Translational Research Group, IRBLleida, RedinRen-ISCIII, Av. Rovira Roure 80, 25198 Lleida, Spain
| | - Cristina Farràs-Salles
- Primary Care ABS Balàfia - Pardinyes - Secà de Sant pere, Av. Alcalde Recasens s/n, 25005 Lleida, Spain
| | - Reinald Pamplona
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Av. Rovira Roure 80, 25198 Lleida, Spain
| | - Albert Lecube
- Endocrinology and Nutrition Department, Hospital Universitari Arnau de Vilanova, Obesity, Diabetes and Metabolism Research Group (ODIM), Institut de Recerca Biomèdica de Lleida (IRBLleida), Universitat de Lleida, Av. Rovira Roure 80, Lleida, Spain
| | - Jordi de Batlle
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Av. Rovira Roure 80, 25198 Lleida, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Av. Monforte de Lemos, 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Ferran Barbé
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Av. Rovira Roure 80, 25198 Lleida, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Av. Monforte de Lemos, 3-5, Pabellón 11, 28029 Madrid, Spain
| | - Mireia Dalmases
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Av. Rovira Roure 80, 25198 Lleida, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Av. Monforte de Lemos, 3-5, Pabellón 11, 28029 Madrid, Spain.
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20
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Ryan S, Cummins EP, Farre R, Gileles-Hillel A, Jun JC, Oster H, Pepin JL, Ray DW, Reutrakul S, Sanchez-de-la-Torre M, Tamisier R, Almendros I. Understanding the pathophysiological mechanisms of cardiometabolic complications in obstructive sleep apnoea: towards personalised treatment approaches. Eur Respir J 2020; 56:13993003.02295-2019. [PMID: 32265303 DOI: 10.1183/13993003.02295-2019] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/15/2020] [Indexed: 12/19/2022]
Abstract
In January 2019, a European Respiratory Society research seminar entitled "Targeting the detrimental effects of sleep disturbances and disorders" was held in Dublin, Ireland. It provided the opportunity to critically review the current evidence of pathophysiological responses of sleep disturbances, such as sleep deprivation, sleep fragmentation or circadian misalignment and of abnormalities in physiological gases such as oxygen and carbon dioxide, which occur frequently in respiratory conditions during sleep. A specific emphasis of the seminar was placed on the evaluation of the current state of knowledge of the pathophysiology of cardiovascular and metabolic diseases in obstructive sleep apnoea (OSA). Identification of the detailed mechanisms of these processes is of major importance to the field and this seminar offered an ideal platform to exchange knowledge, and to discuss pitfalls of current models and the design of future collaborative studies. In addition, we debated the limitations of current treatment strategies for cardiometabolic complications in OSA and discussed potentially valuable alternative approaches.
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Affiliation(s)
- Silke Ryan
- Pulmonary and Sleep Disorders Unit, St Vincent's University Hospital, Dublin, Ireland .,School of Medicine, Conway Institute, University College Dublin, Dublin, Ireland
| | - Eoin P Cummins
- School of Medicine, Conway Institute, University College Dublin, Dublin, Ireland
| | - Ramon Farre
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBAPS, and CIBER Enfermedades Respiratorias, Barcelona, Spain
| | - Alex Gileles-Hillel
- Pediatric Pulmonology and Sleep Unit, Dept of Pediatrics, and The Wohl Institute for Translational Medicine, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Jonathan C Jun
- Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Henrik Oster
- Institute of Neurobiology, University of Lübeck, Lübeck, Germany
| | | | - David W Ray
- NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK.,Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Sirimon Reutrakul
- Division of Endocrinology, Diabetes, and Metabolism, Dept of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Manuel Sanchez-de-la-Torre
- Group of Precision Medicine in Chronic Diseases, Hospital Arnau de Vilanova-Santa Maria, IRBLleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Renaud Tamisier
- HP2 INSERM U1042, Université Grenoble Alpes, Grenoble, France
| | - Isaac Almendros
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBAPS, and CIBER Enfermedades Respiratorias, Barcelona, Spain
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21
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Moulin S, Arnaud C, Bouyon S, Pépin JL, Godin-Ribuot D, Belaidi E. Curcumin prevents chronic intermittent hypoxia-induced myocardial injury. Ther Adv Chronic Dis 2020; 11:2040622320922104. [PMID: 32637058 PMCID: PMC7315663 DOI: 10.1177/2040622320922104] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/24/2020] [Indexed: 01/14/2023] Open
Abstract
Background: Chronic intermittent hypoxia (IH), the hallmark feature of obstructive sleep apnoea syndrome, contributes to infarct size enhancement after myocardial ischemia–reperfusion (I/R). Curcumin (Curc), the natural pigment of Curcuma longa, has been demonstrated to be beneficial in the context of myocardial injury. In this study, we assessed the effects of Curc on the maladaptive cardiac response to IH, and particularly on IH-induced hypoxia inducible factor-1 (HIF-1) expression, oxidative stress, inflammation, endoplasmic reticulum (ER) stress and apoptosis. Methods: Swiss/SV129 mice were exposed to normoxia or IH (21–5% FiO2, 60 s cycles, 8 h per day, for 21 days) and treated orally with Curc (100 mg kg−1
day−1, oral gavage) or its vehicle. Mice were then either euthanised for heart sampling in order to perform biochemical and histological analysis, or subjected to an in vivo ischemia-reperfusion protocol in order to measure infarct size. Results: IH increased nuclear HIF-1α expression and superoxide anion (O2.–) production as well as nuclear factor kappa B (NF-kB) p65, glucose-regulated protein (Grp78) and C/EBP homologous protein (CHOP) expression. IH also induced apoptosis and increased infarct size after I/R . The IH-induced HIF-1 activation, oxidative stress, inflammation, ER stress and apoptosis were abolished by chronic Curc treatment. Curc also significantly decreased infarct size only in mice exposed to IH. Conclusion: Curc prevents IH-induced myocardial cell death signalling. Curc might be used as a combined therapy with continuous positive airway pressure in sleep apnoea patients with high cardiovascular risk.
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Affiliation(s)
- Sophie Moulin
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France
| | - Claire Arnaud
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France
| | - Sophie Bouyon
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France
| | - Jean-Louis Pépin
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France / Centre Hospitalier Universitaire des Alpes, Grenoble F38042, France
| | - Diane Godin-Ribuot
- Université Grenoble Alpes-HP2-Grenoble F-38042, France / INSERM, U1042-Grenoble F38042, France
| | - Elise Belaidi
- University Grenoble Alpes, Grenoble, France INSERM, U1042, Grenoble, France
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22
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Zhang J, Hu C, Jiao X, Yang Y, Li J, Yu H, Qin Y, Wei Y. Potential Role of mRNAs and LncRNAs in Chronic Intermittent Hypoxia Exposure-Aggravated Atherosclerosis. Front Genet 2020; 11:290. [PMID: 32328084 PMCID: PMC7160761 DOI: 10.3389/fgene.2020.00290] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 03/10/2020] [Indexed: 12/19/2022] Open
Abstract
Atherosclerosis is the pathological basis of cardiovascular disease. Obstructive sleep apnea (OSA) aggravates atherosclerosis, and chronic intermittent hypoxia (CIH) as a prominent feature of OSA plays an important role during the process of atherosclerosis. The mechanisms of CIH in the development of atherosclerosis remain unclear. In the current study, we used microarray to investigate differentially expressed mRNAs and long non-coding RNAs (lncRNAs) in aorta from five groups of ApoE–/– mice fed with a high-fat diet and exposed to various conditions: normoxia for 8 weeks, CIH for 8 weeks, normoxia for 12 weeks, CIH for 12 weeks, or CIH for 8 weeks followed by normoxia for 4 weeks. Selected transcripts were validated in aorta tissues and RT-qPCR analysis showed correlation with the microarray data. Gene Ontology analysis and pathway enrichment analysis were performed to explore the mRNA function. Bioinformatic analysis indicated that short-term CIH induced up-regulated mRNAs involved in inflammatory response. Pathway enrichment analysis of lncRNA co-localized mRNAs and lncRNA co-expressed mRNAs were performed to explore lncRNA functions. The up-regulated mRNAs, lncRNA co-localized mRNAs and lncRNA co-expressed mRNAs were significantly associated with protein processing in endoplasmic reticulum pathway in atherosclerotic vascular tissue with long-term CIH exposure, suggesting that differentially expressed mRNAs and lncRNAs play important roles in this pathway. Moreover, a mRNA-lncRNA co-expression network with 380 lncRNAs, 508 mRNAs and 3238 relationships was constructed based on the correlation analysis between the differentially expressed mRNAs and lncRNAs. In summary, our study provided a systematic perspective on the potential function of mRNAs and lncRNAs in CIH-aggravated atherosclerosis, and may provide novel molecular candidates for future investigation on atherosclerosis exposed to CIH.
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Affiliation(s)
- Jing Zhang
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Key Laboratory of Upper Airway Dysfunction-Related Cardiovascular Diseases, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
| | - Chaowei Hu
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Key Laboratory of Upper Airway Dysfunction-Related Cardiovascular Diseases, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
| | - Xiaolu Jiao
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Key Laboratory of Upper Airway Dysfunction-Related Cardiovascular Diseases, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
| | - Yunyun Yang
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Key Laboratory of Upper Airway Dysfunction-Related Cardiovascular Diseases, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
| | - Juan Li
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Key Laboratory of Upper Airway Dysfunction-Related Cardiovascular Diseases, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
| | - Huahui Yu
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Key Laboratory of Upper Airway Dysfunction-Related Cardiovascular Diseases, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
| | - Yanwen Qin
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Key Laboratory of Upper Airway Dysfunction-Related Cardiovascular Diseases, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
| | - Yongxiang Wei
- Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China.,Key Laboratory of Upper Airway Dysfunction-Related Cardiovascular Diseases, Beijing, China.,Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, China
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23
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Bocquillon V, Destors M, Guzun R, Doutreleau S, Pépin JL, Tamisier R. [Cardiac dysfunction and the obstructive sleep apnoea syndrome]. Rev Mal Respir 2019; 37:161-170. [PMID: 31866122 DOI: 10.1016/j.rmr.2019.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 07/04/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Cardiac insufficiency affects nearly 2% of the population with increased morbidity/mortality despite advances in therapeutic management. The sleep apnoea syndrome (SAS) is a risk factor for, and cause of aggravation of, myocardial dysfunction. BACKGROUND SAS is found in 70% of patients with chronic cardiac failure, 65% of patients with refractory hypertension, 60% of patients with cerebro-vascular accidents and 50% of patients with atrial fibrillation. The associated cardiovascular mortality is multiplied by a factor of 2 to 3. The pathophysiological mechanisms are intermittent nocturnal hypoxia, variations in CO2 levels, variations in intrathoracic pressure and repeated arrousals from sleep, concurrent with sympathetic hyperactivity, endothelial dysfunction and systemic inflammation. CONCLUSIONS SAS and cardiological management in patients presenting with myocardial dysfunction should be combined. It is necessary to pursue the scientific investigations with the aim of determining a precise care pathway and the respective places of each of the cardiological and pulmonary measures.
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Affiliation(s)
- V Bocquillon
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - M Destors
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - R Guzun
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - S Doutreleau
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - J L Pépin
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - R Tamisier
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France.
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24
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Singh M, Tuteja A, Wong DT, Goel A, Trivedi A, Tomlinson G, Chan V. Point-of-Care Ultrasound for Obstructive Sleep Apnea Screening: Are We There Yet? A Systematic Review and Meta-analysis. Anesth Analg 2019; 129:1673-1691. [PMID: 31743189 DOI: 10.1213/ane.0000000000004350] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Perioperative diagnosis of obstructive sleep apnea (OSA) has important resource implications as screening questionnaires are overly sensitive, and sleep studies are expensive and time-consuming. Ultrasound (US) is a portable, noninvasive tool potentially useful for airway evaluation and OSA screening in the perioperative period. The objective of this systematic review was to evaluate the correlation of surface US with OSA diagnosis and to determine whether a point-of-care ultrasound (PoCUS) for OSA screening may help with improved screening in perioperative period. METHODS A search of all electronic databases including Medline, Embase, and Cochrane Database of Systematic Reviews was conducted from database inception to September 2017. Inclusion criteria were observational cohort studies and randomized controlled trials of known or suspected OSA patients undergoing surface US assessment. Article screening, data extraction, and summarization were conducted by 2 independent reviewers with ability to resolve conflict with supervising authors. Diagnostic properties and association between US parameters (index test) and OSA diagnosis using sleep study (reference standard) were evaluated. The US parameters were divided into airway and nonairway parameters. A random-effects meta-analysis was planned, wherever applicable. RESULTS Of the initial 3865 screened articles, 21 studies (7 airway and 14 nonairway) evaluating 3339 patients were included. Majority of studies were conducted in the general population (49%), respirology (23%), and sleep clinics (12%). No study evaluated the use of US for OSA in perioperative setting. Majority of included studies had low risk of bias for reference standard and flow and timing. Airway US parameters having moderate-good correlation with moderate-severe OSA were distance between lingual arteries (DLAs > 30 mm; sensitivity, 0.67; specificity, 0.59; 1 study/66 patients); mean resting tongue thickness (>60 mm; sensitivity, 0.85; specificity, 0.59; 1 study/66 patients); tongue base thickness during Muller maneuver (MM; sensitivity, 0.59; specificity, 0.78; 1 study/66 patients); and a combination of neck circumference and retropalatal (RP) diameter shortening during MM (sensitivity, 1.0; specificity, 0.65; 1 study/104 patients). Nonairway US parameters having a low-moderate correlation with moderate-severe OSA were carotid intimal thickness (pooled correlation coefficient, 0.444; 95% confidence interval [CI], 0.320-0.553; P value = .000, 8 studies/727 patients) and plaque presence (sensitivity, 0.24-0.75; specificity, 0.13-1.0; 4 studies/1183 patients). CONCLUSIONS We found that a number of airway and nonairway parameters were identified with moderate to good correlation with OSA diagnosis in the general population. In future studies, it remains to be seen whether PoCUS screening for a combination of these parameters can address the pitfalls of OSA screening questionnaires.
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Affiliation(s)
- Mandeep Singh
- From the Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Toronto Sleep and Pulmonary Centre, Toronto, Ontario, Canada
- Department of Anesthesiology and Pain Management, Women's College Hospital, Toronto, Ontario, Canada
| | - Arvind Tuteja
- From the Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - David T Wong
- From the Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Akash Goel
- From the Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Aditya Trivedi
- Department of Chemistry, McMaster University, Hamilton, ON, Canada
| | - George Tomlinson
- Department of Medicine, University Health Network and Mt Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Vincent Chan
- From the Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
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25
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Philippe C. [Sleep-related breathing disorders in adults: diagnosis, consequences and comorbidities]. Orthod Fr 2019; 90:289-299. [PMID: 34643516 DOI: 10.1051/orthodfr/2019031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Obstructive sleep apnea/hypopnea syndrome (OSAHS) is a collapse of the upper airways leading to a decrease (hypopneas) or interruption of air flow (apneas). Since its identification, only forty years ago, definitions, diagnostic techniques have evolved, the consequences of this syndrome have been widely studied but establishing it as an independent cardiovascular (CV) risk factor has come up against the existence of many confounding factors, such as obesity, high blood pressure (hypertension)… Paraclinical diagnosis is based on the results of poly(somno)graphy. Recommendations on measurement techniques and scoring are regularly published, evolving in parallel with technological progress, with the aim of standardizing and ensuring the reliability of the diagnosis. At the same time, large cohort studies were set up in the 1990s, allowing for transversal and longitudinal follow-up of thousands of patients. Finally, the pathophysiological mechanisms of the consequences of SAHOS were explored. OSA has been shown to be responsible for a particularly high accidental risk due to sleep fragmentation induced by abnormal respiratory events. It has been possible to establish an independent statistical relationship between SAHOS and CV diseases, metabolic disorders and more recently cancer, mainly explained by intermittent hypoxia. OSAHOS is a frequent disease, diagnosed on the basis of clinical signs and poly(somno)graphy, now established as an independent risk factor for morbidity and mortality (accidental and CV).
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Affiliation(s)
- Carole Philippe
- Unité des Pathologies du Sommeil, Service du Pr Arnulf, Groupe Hospitalier Pitié Salpêtrière, 47-83 boulevard de l'hôpital, 75651 Paris Cedex 13, France
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26
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Cistulli PA, Sutherland K. Phenotyping obstructive sleep apnoea—Bringing precision to oral appliance therapy. J Oral Rehabil 2019; 46:1185-1191. [DOI: 10.1111/joor.12857] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/04/2019] [Accepted: 07/04/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Peter A. Cistulli
- Sleep Research Group, Charles Perkins Centre, Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine Royal North Shore Hospital Sydney New South Wales Australia
| | - Kate Sutherland
- Sleep Research Group, Charles Perkins Centre, Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
- Centre for Sleep Health and Research, Department of Respiratory and Sleep Medicine Royal North Shore Hospital Sydney New South Wales Australia
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27
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de Chazal P, Sutherland K, Cistulli PA. Advanced polysomnographic analysis for OSA: A pathway to personalized management? Respirology 2019; 25:251-258. [PMID: 31038827 DOI: 10.1111/resp.13564] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 03/11/2019] [Indexed: 12/15/2022]
Abstract
Obstructive sleep apnea (OSA) is a highly heterogeneous disorder, with diverse pathways to disease, expression of disease, susceptibility to co-morbidities and response to therapy, and is ideally suited to precision medicine approaches. Clinically, the content of the information-rich polysomnogram (PSG) is not currently fully utilized in determining patient management. Novel PSG parameters such as hypoxic burden, pulse transit time, cardiopulmonary coupling and the frequency representations of PSG sensor signals could predict a variety of cardiovascular disease, cancer and neurodegeneration co-morbidities. The PSG can also be used to identify key pathophysiological parameters such as loop gain, arousal threshold and muscle compensation which can enhance understanding of the causes of OSA in an individual, and thereby guide choices on therapy. Machine learning methods performing their own parameter extraction coupled with large PSG data sets offer an exciting opportunity for discovering new links between the PSG variables and disease outcomes. By exploiting existing and emerging analytical methods, the PSG may offer a pathway to personalized management for OSA.
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Affiliation(s)
- Philip de Chazal
- Charles Perkins Centre, Faculty of Engineering and I.T., University of Sydney, Sydney, NSW, Australia
| | - Kate Sutherland
- Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Peter A Cistulli
- Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
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28
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Suzuki M, Shimamoto K, Sekiguchi H, Harada T, Satoya N, Inoue Y, Yamaguchi K, Kawana M. Arousal index as a marker of carotid artery atherosclerosis in patients with obstructive sleep apnea syndrome. Sleep Breath 2019; 23:87-94. [PMID: 29779142 DOI: 10.1007/s11325-018-1664-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 03/19/2018] [Accepted: 04/11/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE It was shown in a previous cohort study that men with internal carotid artery (ICA) plaque, defined as focal wall thickness of ≥ 1.5 mm, had a threefold higher risk of stroke than those without plaque. We examined the relationship between arousal indices and sleep stages in patients with obstructive sleep apnea syndrome (OSAS) and carotid atherosclerosis. METHODS Carotid atherosclerosis severity was evaluated using the maximal carotid wall intima-media thickness of the ICA (ICA-maxIMT) and plaque in 83 patients with OSAS. RESULTS The ICA-maxIMT values were positively correlated with the apnea hypopnea index (AHI) (ρ = 0.294, P = 0.007), arousal index (ρ = 0.289, P = 0.008), oxygen desaturation index (ρ = 0.298, P = 0.006), percentage of visually scored total sleep time spent in nocturnal oxygen saturation < 90% (SpO2 < 90%) (ρ = 0.246, P = 0.025), and the percentage of visually scored total sleep time spent in non-REM sleep stage 1 (ρ = 0.326, P = 0.003) and were negatively correlated with the percentage of visually scored total sleep time spent in non-REM sleep stages 2 and 3. Arousal index, diabetes mellitus, and age were found to be independent predictors of ICA plaque presence (OR 1.052, P = 0.003; OR 8.705, P = 0.026; OR 1.064, P = 0.023, respectively). CONCLUSIONS Several PSG variables that are indicative of sleep fragmentation, sleep disordered breathing, and poor sleep quality correlated with the occurrence of atherosclerosis, but total arousal index was the only independent predictive factor.
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Affiliation(s)
- Mayumi Suzuki
- Division of Comprehensive Sleep Medicine, Tokyo Women's Medical University Hospital, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo, 162-8666, Japan.
| | - Ken Shimamoto
- Department of General Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo, 162-8666, Japan
| | - Haruki Sekiguchi
- Division of Comprehensive Sleep Medicine, Tokyo Women's Medical University Hospital, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo, 162-8666, Japan
| | - Takamitsu Harada
- Central Clinical Laboratories, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Natsumi Satoya
- Central Clinical Laboratories, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Yuji Inoue
- Central Clinical Laboratories, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
| | - Kazuhiro Yamaguchi
- Division of Comprehensive Sleep Medicine, Tokyo Women's Medical University Hospital, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo, 162-8666, Japan
| | - Masatoshi Kawana
- Department of General Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjyuku-ku, Tokyo, 162-8666, Japan
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Yang D, Rundek T, Patel SR, Cabral D, Redline S, Testai FD, Cai J, Wallace DM, Zee PC, Ramos AR. Cerebral Hemodynamics in Sleep Apnea and Actigraphy-Determined Sleep Duration in a Sample of the Hispanic Community Health Study/ Study of Latinos. J Clin Sleep Med 2019; 15:15-21. [PMID: 30621830 DOI: 10.5664/jcsm.7560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 08/13/2018] [Indexed: 12/12/2022]
Abstract
STUDY OBJECTIVES We sought to evaluate cerebral hemodynamics in obstructive sleep apnea (OSA) and actigraphy-defined short sleep duration using transcranial Doppler ultrasound (TCD) blood flow velocity in a subsample of Hispanics/Latinos without stroke and cardiovascular disease. METHODS The sample consisted of consecutive participants at the Miami site of the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) with overnight home sleep testing and 7 days of wrist actigraphy in the Sueño sleep ancillary study. Ninety-five participants had sleep data and TCD determined cerebral hemodynamics. We evaluated the association between OSA (apnea-hypopnea index [AHI] ≥ 5 events/h) and short sleep duration (< 6.8 hours; sample median) with cerebral blood flow velocities (CBFV) and pulsatility index (PI) for the middle cerebral (MCA) and basilar arteries (BA). RESULTS Median age was 48 years (range 20-64) with 71% females. Twenty-eight percent of the sample had OSA (AHI ≥ 5 events/h) with median AHI of 10.0 (range 5.0-51.7) events/h. In unadjusted analyses, participants with OSA had lower median CBFV in the BA (30.5 cm/s [interquartile range:10.2] versus 39.4 cm/s [13.3] P < .05), but not the MCA, whereas short sleepers had higher median vascular resistance in the MCA (PI = 0.92 [0.18] versus 0.86 [0.14] P < .05) and BA (PI = 1.0 [0.17] versus 0.93 [0.24] P < .05). After full adjustment, OSA was associated with decreased CBFV (β [SE] = -5.1 [2.5] P < .05) in the BA. Short sleep was associated with increased PI (β [SE] = 0.05 [0.02] P < .05) in the MCA. CONCLUSIONS In this sample of Hispanic/Latinos, OSA was associated with decreased daytime blood flow velocity in the BA, whereas actigraphy-defined short sleep duration was associated with increased cerebrovascular pulsatility in the MCA.
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Affiliation(s)
- Dixon Yang
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida
| | - Tatjana Rundek
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida
| | - Sanjay R Patel
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Digna Cabral
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida
| | - Susan Redline
- Departments of Medicine, Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Fernando D Testai
- Department of Neurology and Rehabilitation, University of Illinois at Chicago Medical Center, Chicago, Illinois
| | - Jianwen Cai
- Collaborative Studies Coordinating Center, University of North Carolina at Chapel Hill, North Carolina
| | - Douglas M Wallace
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida
| | - Phyllis C Zee
- Department of Neurology and Center for Circadian and Sleep Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Alberto R Ramos
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida
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30
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Abstract
Obstructive sleep apnoea (OSA) is a highly prevalent disorder, which causes significant nocturnal and daytime symptoms, reduced quality of life, and impaired functional capacity. Importantly, however, OSA also appears to predispose to the development of a number of cardiovascular and metabolic diseases, including diabetes, hypertension, and stroke. In this review we explore its relationship with coronary artery disease (CAD), discussing mechanisms whereby it may promote the development of atherosclerosis, evidence of its effect on CAD incidence and outcomes, and coronary imaging studies in subjects with OSA. Finally, we shall evaluate the current evidence regarding the impact of continuous positive airway pressure therapy on CAD outcomes in OSA patients.
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Affiliation(s)
- Swapna Mandal
- Department of Respiratory and Sleep Medicine, Royal Free Hospital, London, UK.,University College London, UK
| | - Brian D Kent
- Sleep Disorders Centre, Guy's & St. Thomas' Hospitals, London, UK.,King's College London, London, UK
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31
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Abstract
Obstructive sleep apnoea (OSA) is recognized as a major public health burden conveying a significant risk of cardiovascular diseases (CVD) and mortality. Continuous positive airway pressure (CPAP) is the treatment of choice for the majority of patients with OSA but the benefit of CPAP on CVD is uncertain. Thus, a greater understanding of the mechanisms by which OSA leads to CVD might identify novel therapeutic approaches. Intermittent hypoxia (IH), a hallmark feature of OSA, plays a key role in the pathogenesis and experimental studies using animal and cell culture studies suggest that IH mediates CVD through activation of multiple mechanistic pathways such as sympathetic excitation, inflammation, oxidative stress or metabolic dysregulation. Recurrent arousals, intrathoracic pressure swings and concomitant obesity likely play important additive roles in this process. In this review, the available evidence of the pathophysiological mechanisms of CVD in OSA is explored with a specific emphasis on IH, recurrent arousals and intrathoracic pressure swings as the main pathophysiological triggers.
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Affiliation(s)
- Silke Ryan
- Pulmonary and Sleep Disorders Unit, St. Vincent's University Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland
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32
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Mazzotti DR, Lim DC, Sutherland K, Bittencourt L, Mindel JW, Magalang U, Pack AI, de Chazal P, Penzel T. Opportunities for utilizing polysomnography signals to characterize obstructive sleep apnea subtypes and severity. Physiol Meas 2018; 39:09TR01. [PMID: 30047487 DOI: 10.1088/1361-6579/aad5fe] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is a heterogeneous sleep disorder with many pathophysiological pathways to disease. Currently, the diagnosis and classification of OSA is based on the apnea-hypopnea index, which poorly correlates to underlying pathology and clinical consequences. A large number of in-laboratory sleep studies are performed around the world every year, already collecting an enormous amount of physiological data within an individual. Clinically, we have not yet fully taken advantage of this data, but combined with existing analytical approaches, we have the potential to transform the way OSA is managed within an individual patient. Currently, respiratory signals are used to count apneas and hypopneas, but patterns such as inspiratory flow signals can be used to predict optimal OSA treatment. Electrocardiographic data can reveal arrhythmias, but patterns such as heart rate variability can also be used to detect and classify OSA. Electroencephalography is used to score sleep stages and arousals, but specific patterns such as the odds-ratio product can be used to classify how OSA patients responds differently to arousals. OBJECTIVE In this review, we examine these and many other existing computer-aided polysomnography signal processing algorithms and how they can reflect an individual's manifestation of OSA. SIGNIFICANCE Together with current technological advance, it is only a matter of time before advanced automatic signal processing and analysis is widely applied to precision medicine of OSA in the clinical setting.
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Affiliation(s)
- Diego R Mazzotti
- Center for Sleep and Circadian Neurobiology, University of Pennsylvania, Philadelphia, United States of America
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Abstract
INTRODUCTION Stroke is a major cause of disability and death in the United States and across the world, and the incidence and prevalence of stroke are expected to rise significantly due to an aging population. Obstructive sleep apnea, an established independent risk factor for stroke, is a highly prevalent disease that is estimated to double the risk of stroke. It remains uncertain whether non-apnea sleep disorders increase the risk of stroke. Areas covered: This paper reviews the literature describing the association between incident stroke and sleep apnea, rapid eye movement sleep behavior disorder, restless legs syndrome, periodic limb movements of sleep, insomnia, and shift work. Expert commentary: Trials of continuous positive airway pressure for stroke prevention in sleep apnea patients have been largely disappointing, but additional trials that target populations not yet optimally studied are needed. Self-reported short and long sleep duration may be associated with incident stroke. However, abnormal sleep duration may be a marker of chronic disease, which may itself be associated with incident stroke. The relationship between non-apnea sleep disorders and incident stroke deserves further attention. Identification of specific non-apnea sleep disorders or sleep problems that convey an increased risk for stroke may provide novel targets for stroke prevention.
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Affiliation(s)
- Mollie McDermott
- Michigan Medicine Stroke Program, Cardiovascular Center, Ann Arbor, Michigan, USA
| | - Devin L. Brown
- Michigan Medicine Stroke Program, Cardiovascular Center, Ann Arbor, Michigan, USA
- Michigan Medicine Michael S. Aldrich Sleep Disorders Laboratory, Ann Arbor, Michigan, USA
| | - Ronald D. Chervin
- Michigan Medicine Stroke Program, Cardiovascular Center, Ann Arbor, Michigan, USA
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34
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Gautier-Veyret E, Bäck M, Arnaud C, Belaïdi E, Tamisier R, Lévy P, Arnol N, Perrin M, Pépin JL, Stanke-Labesque F. Cysteinyl-leukotriene pathway as a new therapeutic target for the treatment of atherosclerosis related to obstructive sleep apnea syndrome. Pharmacol Res 2018; 134:311-319. [PMID: 29920371 DOI: 10.1016/j.phrs.2018.06.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/18/2018] [Accepted: 06/15/2018] [Indexed: 11/26/2022]
Abstract
AIMS Obstructive sleep apnea (OSA) characterized by nocturnal intermittent hypoxia (IH) is associated with atherosclerosis and cysteinyl-leukotrienes (CysLT) pathway activation. We aimed to identify the determinants of CysLT pathway activation and the role of CysLT in OSA-related atherosclerosis. METHODS AND RESULTS Determinants of the urinary excretion of LTE4 (U-LTE4) including history of cardiovascular events, polysomnographic and biological parameters were studied in a cohort of 170 OSA patients and 29 controls, and in a subgroup of OSA patients free of cardiovascular event (n = 136). Mechanisms linking IH, the CysLT pathway and atherogenesis were investigated in Apolipoprotein E deficient (ApoE-/-) mice exposed to 8-week IH. In the whole cohort, U-LTE4 was independently influenced by age, minimal oxygen saturation, and a history of cardiovascular events, and correlated significantly with intima-media thickness. In the subgroup of OSA patients free of cardiovascular event, increased U-LTE4 was increased compared to controls and independently related to hypoxia severity and traditional risk factors aggregated in the 10-year cardiovascular risk score of European Society of Cardiology. In IH mice, atherosclerosis lesion size and mRNA levels of 5-lipoxygenase, 5-lipoxygenase activating protein (FLAP) and CysLT1 receptor were significantly increased. This transcriptional activation was associated with the binding of HIF-1 to the FLAP promoter and was strongly associated with atherosclerosis lesion size. CysLT1 receptor antagonism (montelukast) significantly reduced atherosclerosis progression in IH mice. CONCLUSIONS IH-related CysLT pathway activation contributes to OSA-induced atherogenesis. In the era of personalized medicine, U-LTE4 may be a useful biomarker to identify OSA patients for whom CysLT1 blockade could represent a new therapeutic avenue for reducing cardiovascular risk.
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Affiliation(s)
- Elodie Gautier-Veyret
- Univ. Grenoble Alpes, HP2, F-38041, Grenoble, France; INSERM U1042, 38041, Grenoble, France; Centre Hospitalier Universitaire des Alpes, 38043, Grenoble, France.
| | - Magnus Bäck
- Department of Medicine, Karolinska Institute and University Hospital, Stockholm, Sweden.
| | - Claire Arnaud
- Univ. Grenoble Alpes, HP2, F-38041, Grenoble, France; INSERM U1042, 38041, Grenoble, France.
| | - Elise Belaïdi
- Univ. Grenoble Alpes, HP2, F-38041, Grenoble, France; INSERM U1042, 38041, Grenoble, France.
| | - Renaud Tamisier
- Univ. Grenoble Alpes, HP2, F-38041, Grenoble, France; INSERM U1042, 38041, Grenoble, France; Centre Hospitalier Universitaire des Alpes, 38043, Grenoble, France.
| | - Patrick Lévy
- Univ. Grenoble Alpes, HP2, F-38041, Grenoble, France; INSERM U1042, 38041, Grenoble, France; Centre Hospitalier Universitaire des Alpes, 38043, Grenoble, France.
| | - Nathalie Arnol
- Centre Hospitalier Universitaire des Alpes, 38043, Grenoble, France.
| | - Marion Perrin
- Centre Hospitalier Universitaire des Alpes, 38043, Grenoble, France.
| | - Jean-Louis Pépin
- Univ. Grenoble Alpes, HP2, F-38041, Grenoble, France; INSERM U1042, 38041, Grenoble, France; Centre Hospitalier Universitaire des Alpes, 38043, Grenoble, France.
| | - Françoise Stanke-Labesque
- Univ. Grenoble Alpes, HP2, F-38041, Grenoble, France; INSERM U1042, 38041, Grenoble, France; Centre Hospitalier Universitaire des Alpes, 38043, Grenoble, France.
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35
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Abstract
PURPOSE OF REVIEW Obstructive sleep apnea (OSA) is a significant risk factor for systemic hypertension and other cardiovascular diseases. While this relationship has been firmly established, a detailed understanding of how OSA leads to hypertension is lacking. This review will examine the emerging idea that the gut microbiota plays a role in the development of hypertension, including that associated with OSA. RECENT FINDINGS Disruption of the normal composition of the gut microbiota, termed dysbiosis, has been identified in a number of metabolic and cardiovascular diseases, including diabetes, obesity, and atherosclerosis. Recently, a number of studies have demonstrated gut dysbiosis in various animal models of hypertension as well as in hypertensive patients. Evidence is now emerging that gut dysbiosis plays a causal role in the development of OSA-induced hypertension. In this review, we will examine the evidence that gut dysbiosis plays a role in OSA-induced hypertension. We will discuss potential mechanisms linking OSA to gut dysbiosis, examine how gut dysbiosis may be linked to hypertension, and highlight how this understanding may be utilized for the development of future therapeutics.
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Affiliation(s)
- David J Durgan
- Department of Anesthesiology, Baylor College of Medicine, One Baylor Plaza, Room 434D, Houston, TX, 77030, USA.
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36
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Arnaud C, Bouyon S, Recoquillon S, Brasseur S, Lemarié E, Briançon-Marjollet A, Gonthier B, Toral M, Faury G, Martinez MC, Andriantsitohaina R, Pepin JL. Nonmuscle Myosin Light Chain Kinase: A Key Player in Intermittent Hypoxia-Induced Vascular Alterations. J Am Heart Assoc 2018; 7:JAHA.117.007893. [PMID: 29371201 PMCID: PMC5850262 DOI: 10.1161/jaha.117.007893] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background Obstructive sleep apnea is characterized by repetitive pharyngeal collapses during sleep, leading to intermittent hypoxia (IH), the main contributor of obstructive sleep apnea–related cardiovascular morbidity. In patients and rodents with obstructive sleep apnea exposed to IH, vascular inflammation and remodeling, endothelial dysfunction, and circulating inflammatory markers are linked with IH severity. The nonmuscle myosin light chain kinase (nmMLCK) isoform contributes to vascular inflammation and oxidative stress in different cardiovascular and inflammatory diseases. Thus, in the present study, we hypothesized that nmMLCK plays a key role in the IH‐induced vascular dysfunctions and inflammatory remodeling. Methods and Results Twelve‐week‐old nmMLCK+/+ or nmMLCK−/− mice were exposed to 14‐day IH or normoxia. IH was associated with functional alterations characterized by an elevation of arterial blood pressure and stiffness and perturbations of NO signaling. IH caused endothelial barrier dysfunction (ie, reduced transendothelial resistance in vitro) and induced vascular oxidative stress associated with an inflammatory remodeling, characterized by an increased intima‐media thickness and an increased expression and activity of inflammatory markers, such as interferon‐γ and nuclear factor‐κB, in the vascular wall. Interestingly, nmMLCK deletion prevented all IH‐induced functional and structural alterations, including the restoration of NO signaling, correction of endothelial barrier integrity, and reduction of both oxidative stress and associated inflammatory response. Conclusions nmMLCK is a key mechanism in IH‐induced vascular oxidative stress and inflammation and both functional and structural remodeling.
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Affiliation(s)
- Claire Arnaud
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France .,Laboratoire HP2, INSERM U1042, Grenoble, France
| | - Sophie Bouyon
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France.,Laboratoire HP2, INSERM U1042, Grenoble, France
| | - Sylvain Recoquillon
- Université d'Angers Université Bretagne Loire, Angers, France.,INSERM UMR1063, Angers, France
| | - Sandrine Brasseur
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France.,Laboratoire HP2, INSERM U1042, Grenoble, France
| | - Emeline Lemarié
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France.,Laboratoire HP2, INSERM U1042, Grenoble, France
| | - Anne Briançon-Marjollet
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France.,Laboratoire HP2, INSERM U1042, Grenoble, France
| | - Brigitte Gonthier
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France.,Laboratoire HP2, INSERM U1042, Grenoble, France
| | - Marta Toral
- Université d'Angers Université Bretagne Loire, Angers, France.,INSERM UMR1063, Angers, France
| | - Gilles Faury
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France.,Laboratoire HP2, INSERM U1042, Grenoble, France
| | - M Carmen Martinez
- Université d'Angers Université Bretagne Loire, Angers, France.,INSERM UMR1063, Angers, France
| | | | - Jean-Louis Pepin
- Laboratoire HP2, Université Grenoble Alpes, Grenoble, France.,Laboratoire HP2, INSERM U1042, Grenoble, France.,Laboratoire d'Exploration Fonctionnelle Cardiovasculaire et Respiratoire, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble, France
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37
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Abstract
Le syndrome d'apnées obstructives du sommeil (SAOS) touche environ 4% des hommes et 2% des femmes d'âge moyen mais beaucoup de ces patients ne sont ni diagnostiqués ni traités. Une morbidité et une mortalité cardio et cérébrovasculaires sont associées aux apnées du sommeil. La notion de lien de causalité s'est confirmée ces dernières années sur des données épidémiologiques, expérimentales et thérapeutiques. La prévalence dans la population générale et l'impact sur la genèse et l'évolution de l'hypertension artérielle systémique et pulmonaire, des troubles du rythme cardiaque, de la maladie coronarienne, de l'insuffisance cardiaque et des accidents vasculaires cérébraux doivent inciter à diagnostiquer et à traiter précocement les troubles respiratoires du sommeil et si possible à les prévenir.
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Affiliation(s)
- Abdelmajid Bouzerda
- Service de Cardiologie, Premier Centre Médico-chirurgical, Université Cadi Ayyad, Faculté de Médecine et de Pharmacie de Marrakech, Maroc
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Gautier-Veyret E, Pépin JL, Stanke-Labesque F. Which place of pharmacological approaches beyond continuous positive airway pressure to treat vascular disease related to obstructive sleep apnea? Pharmacol Ther 2017; 186:45-59. [PMID: 29277633 DOI: 10.1016/j.pharmthera.2017.12.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Obstructive sleep apnea (OSA) is characterized by recurrent episodes of partial or complete upper airway obstruction, occurring during sleep, leading to chronic intermittent hypoxia (IH), which harms the cardiovascular system. OSA is associated with both functional and structural vascular alterations that contribute to an increased prevalence of fatal and non-fatal cardiovascular events. OSA is a heterogeneous disease with respect to the severity of hypoxia, the presence of daytime symptoms, obesity, and cardiovascular comorbidities. Various clusters of OSA phenotypes have been described leading to more highly personalized treatment. The aim of this review is to describe the various therapeutic strategies including continuous positive airway pressure (CPAP), oral appliances, surgery, weight loss, and especially pharmacological interventions that have been evaluated to reduce vascular alterations in both OSA patients and preclinical animal models. Conventional therapies, predominantly CPAP, have a limited impact on vascular alterations in the presence of co-morbidities. A better knowledge of pharmacological therapies targeting IH-induced vascular alterations will facilitate the use of combined therapies and is crucial for designing clinical trials in well-defined OSA phenotypes.
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Affiliation(s)
- Elodie Gautier-Veyret
- Univ. Grenoble Alpes, HP2, F-38041 Grenoble, France; INSERM U1042, 38041 Grenoble, France; Centre hospitalier Universitaire Grenoble Alpes, 38043 Grenoble, France.
| | - Jean-Louis Pépin
- Univ. Grenoble Alpes, HP2, F-38041 Grenoble, France; INSERM U1042, 38041 Grenoble, France; Centre hospitalier Universitaire Grenoble Alpes, 38043 Grenoble, France
| | - Françoise Stanke-Labesque
- Univ. Grenoble Alpes, HP2, F-38041 Grenoble, France; INSERM U1042, 38041 Grenoble, France; Centre hospitalier Universitaire Grenoble Alpes, 38043 Grenoble, France
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Dlamini N, Saunders DE, Bynevelt M, Trompeter S, Cox TC, Bucks RS, Kirkham FJ. Nocturnal oxyhemoglobin desaturation and arteriopathy in a pediatric sickle cell disease cohort. Neurology 2017; 89:2406-2412. [PMID: 29117957 PMCID: PMC5729796 DOI: 10.1212/wnl.0000000000004728] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 09/05/2017] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The purpose of this study of sickle cell disease (SCD) was to determine whether arteriopathy, measurable as intracranial vessel signal loss on magnetic resonance angiography (MRA), was associated with low nocturnal hemoglobin oxygen saturation (SpO2) or hemolytic rate, measurable as reticulocytosis or unconjugated hyperbilirubinemia. METHODS Ninety-five East London children with SCD without prior stroke had overnight pulse oximetry, of whom 47 (26 boys, 39 hemoglobin SS; mean age 9.1 ± 3.1 years) also had MRA, transcranial Doppler (TCD), steady-state hemoglobin, and reticulocytes within 34 months. Two radiologists blinded to the other data graded arteriopathy on MRA as 0 (none) or as increasing severity grades 1, 2, or 3. RESULTS Grades 2 or 3 arteriopathy (n = 24; 2 with abnormal TCD) predicted stroke/TIA compared with grades 0 and 1 (log-rank χ2 [1, n = 47] = 8.1, p = 0.004). Mean overnight SpO2 correlated negatively with reticulocyte percentage (r = -0.387; p = 0.007). Despite no significant differences across the degrees of arteriopathy in genotype, mean overnight SpO2 was higher (p < 0.01) in those with grade 0 (97.0% ± 1.6%) than those with grades 2 (93.9 ± 3.7%) or 3 (93.5% ± 3.0%) arteriopathy. Unconjugated bilirubin was not associated but reticulocyte percentage was lower (p < 0.001) in those with grade 0 than those with grades 2 and 3 arteriopathy. In multivariable logistic regression, lower mean overnight SpO2 (odds ratio 0.50, 95% confidence interval 0.26-0.96; p < 0.01) predicted arteriopathy independent of reticulocyte percentage (odds ratio 1.47, 95% confidence interval 1.15-1.87; p = 0.003). CONCLUSION Low nocturnal SpO2 and reticulocytosis are associated with intracranial arteriopathy in children with SCD. Preventative strategies might reduce stroke risk.
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Affiliation(s)
- Nomazulu Dlamini
- From Developmental Neurosciences (N.D., F.J.K.), UCL Great Ormond Street Institute of Child Health, London, UK; Hospital for Sick Children (N.D.), Toronto, Canada; Department of Radiology (D.E.S., M.B., T.C.C.), Great Ormond Street Hospital for Children NHS Trust, London, UK; University of Western Australia (M.B., R.S.B.), Perth; and Department of Haematology (S.T.), University College London Hospital, UK
| | - Dawn E Saunders
- From Developmental Neurosciences (N.D., F.J.K.), UCL Great Ormond Street Institute of Child Health, London, UK; Hospital for Sick Children (N.D.), Toronto, Canada; Department of Radiology (D.E.S., M.B., T.C.C.), Great Ormond Street Hospital for Children NHS Trust, London, UK; University of Western Australia (M.B., R.S.B.), Perth; and Department of Haematology (S.T.), University College London Hospital, UK
| | - Michael Bynevelt
- From Developmental Neurosciences (N.D., F.J.K.), UCL Great Ormond Street Institute of Child Health, London, UK; Hospital for Sick Children (N.D.), Toronto, Canada; Department of Radiology (D.E.S., M.B., T.C.C.), Great Ormond Street Hospital for Children NHS Trust, London, UK; University of Western Australia (M.B., R.S.B.), Perth; and Department of Haematology (S.T.), University College London Hospital, UK
| | - Sara Trompeter
- From Developmental Neurosciences (N.D., F.J.K.), UCL Great Ormond Street Institute of Child Health, London, UK; Hospital for Sick Children (N.D.), Toronto, Canada; Department of Radiology (D.E.S., M.B., T.C.C.), Great Ormond Street Hospital for Children NHS Trust, London, UK; University of Western Australia (M.B., R.S.B.), Perth; and Department of Haematology (S.T.), University College London Hospital, UK
| | - Timothy C Cox
- From Developmental Neurosciences (N.D., F.J.K.), UCL Great Ormond Street Institute of Child Health, London, UK; Hospital for Sick Children (N.D.), Toronto, Canada; Department of Radiology (D.E.S., M.B., T.C.C.), Great Ormond Street Hospital for Children NHS Trust, London, UK; University of Western Australia (M.B., R.S.B.), Perth; and Department of Haematology (S.T.), University College London Hospital, UK
| | - Romola S Bucks
- From Developmental Neurosciences (N.D., F.J.K.), UCL Great Ormond Street Institute of Child Health, London, UK; Hospital for Sick Children (N.D.), Toronto, Canada; Department of Radiology (D.E.S., M.B., T.C.C.), Great Ormond Street Hospital for Children NHS Trust, London, UK; University of Western Australia (M.B., R.S.B.), Perth; and Department of Haematology (S.T.), University College London Hospital, UK
| | - Fenella J Kirkham
- From Developmental Neurosciences (N.D., F.J.K.), UCL Great Ormond Street Institute of Child Health, London, UK; Hospital for Sick Children (N.D.), Toronto, Canada; Department of Radiology (D.E.S., M.B., T.C.C.), Great Ormond Street Hospital for Children NHS Trust, London, UK; University of Western Australia (M.B., R.S.B.), Perth; and Department of Haematology (S.T.), University College London Hospital, UK.
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[Long-term effects of continuous positive airway pressure treatment on subclinical atherosclerosis in obstructive sleep apnoea syndrome]. Med Clin (Barc) 2017; 147:1-6. [PMID: 27210810 DOI: 10.1016/j.medcli.2016.03.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/18/2016] [Accepted: 03/31/2016] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND OBJECTIVE Obstructive sleep apnoea (OSA) is associated with an increased risk of cardiovascular disease. Our objective was to evaluate subclinical atherosclerosis in OSA patients and the effect of continuous positive airway pressure (CPAP) treatment on carotid intima-media thickness (cIMT). PATIENTS AND METHOD We included 125 patients with suspected OSA. After polysomnography, 107 patients were diagnosed with OSA; 58 of these met the criteria for CPAP treatment. cIMT was measured by ultrasonography at baseline in all patients and after 2 years of follow up in 50 patients on CPAP and 35 without CPAP treatment. RESULTS The average cIMT was significantly thicker in OSA than in non-OSA patients (665±120 vs. 581±78μm, P=.005) and did not differ according to OSA severity. Atheromatous carotid plaque was more prevalent in OSA than non-OSA patients (48 vs. 2%, P=.004). Among OSA patients, the mean cIMT remained stable over time in the group without CPAP, whereas cIMT decreased markedly in the CPAP group (679±122 vs. 631±117μm, P<.0001). CONCLUSIONS Increased cIMT was associated with presence of OSA, but not with its severity. Carotid ultrasound in OSA is a reliable marker of atherosclerosis. CPAP treatment with CPAP in OSA reduces cIMT and cardiovascular risk.
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Im E, Kim GS. Relationship between sleep duration and Framingham cardiovascular risk score and prevalence of cardiovascular disease in Koreans. Medicine (Baltimore) 2017; 96:e7744. [PMID: 28906359 PMCID: PMC5604628 DOI: 10.1097/md.0000000000007744] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Studies have shown sleep duration to be related to the prevalence of metabolic syndrome and hypertension. However, whether sleep duration is associated with cardiovascular disease (CVD) risk and the prevalence of CVD irrespective of conventional CV-risk factor, such as diabetes mellitus, obesity, and metabolic syndrome, has not been well established for the Korean population.A total of 23,878 individuals aged 18 years or older from the 2007-2010 Korean National Health and Nutrition Examination Survey were analyzed. We evaluated the relationship between sleep duration and CV-event risk using the Framingham Cardiovascular Risk Score (FRS; ≥10% or ≥20%) and the prevalence of CVD.After adjusting for traditional risk factors of CVD, a short sleep duration (≤5 hours) yielded odds ratios (OR) of 1.344 (95% confidence interval [CI] 1.200-1.505) for intermediate to high risk and 1.357 (95% CI, 1.140-1.614) for high risk. A long sleep duration (≥9 hours) was also associated with both intermediate to high (OR 1.142, 95% CI 1.011-1.322) and high cardiovascular FRS (OR 1.276, 95% CI 1.118-1.457).Both short and long sleep durations were related with high CVD risk, irrespective of established CVD risk, and a short sleep duration was associated with a higher prevalence of CVD than an optimal or long sleep duration.
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Affiliation(s)
- Eui Im
- Division of Cardiology, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin
| | - Gwang-Sil Kim
- Division of Cardiology, Department of Internal Medicine, Sanggye Paik Hospital Inje University College of Medicine, Seoul, Republic of Korea
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Effect of continuous positive airway pressure on carotid intima-media thickness in patients with obstructive sleep apnea: A meta-analysis. PLoS One 2017; 12:e0184293. [PMID: 28863162 PMCID: PMC5580911 DOI: 10.1371/journal.pone.0184293] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 08/20/2017] [Indexed: 11/19/2022] Open
Abstract
Objective Obstructive sleep apnea (OSA) is associated with increased carotid intima-media thickness (IMT), an early marker of atherosclerosis. Continuous positive airway pressure (CPAP) is the first-line treatment for OSA. A meta-analysis was performed to determine whether CPAP therapy could decrease carotid IMT. Methods The PubMed, Embase, Web of Science, and Cochrane library were searched before March, 2017. Weighted mean difference (WMD) was calculated to estimate the treatment effects of pre and post-CPAP therapy. Seven studies were examined and the meta-analysis was performed using STATA 12.0. Results There was no change of carotid IMT before and after CPAP treatment in OSA patients (WMD = 0.052, 95% confidence interval (CI) = −0.002 to 0.105, z = 1.90, p = 0.057). Meanwhile, meta-analysis of the two RCTs showed that carotid IMT was not changed in CPAP group when compared with control group (WMD = 0.002 95% CI = −0.125 to 0.129, z = 0.03, p = 0.976). Subgroup analyses indicated that carotid IMT was significantly decreased after CPAP use in more severe OSA patients (AHI≥50) (WMD = 0.073, 95% CI = 0.022 to 0.124, z = 2.80, p = 0.005) and patients with therapeutic duration ≥6 months (WMD = 0.121, 95% CI = 0.019 to 0.223, z = 2.32, p = 0.021). Conclusions CPAP had no impact on carotid IMT in OSA patients. However, carotid IMT was significantly decreased after CPAP treatment in more severe OSA patients and patients with longer CPAP usage.
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Ng Y, Joosten SA, Edwards BA, Turton A, Romios H, Samarasinghe T, Landry S, Mansfield DR, Hamilton GS. Oxygen Desaturation Index Differs Significantly Between Types of Sleep Software. J Clin Sleep Med 2017; 13:599-605. [PMID: 28212692 DOI: 10.5664/jcsm.6552] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 01/19/2017] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES The aim of this study was to compare the oxygen desaturation index (ODI) generated by two different sleep software systems. METHODS Participants undergoing diagnostic polysomnography for suspected obstructive sleep apnea underwent simultaneous oximetry recording using the ResMed ApneaLink Plus device (AL) and Compumedics Profusion PSG3 system (Comp). The ODI was calculated by the algorithms in the respective software of each system. To determine if differences were due to algorithm or recording devices, the Comp software was also used to generate ODI values using oximetry data from the AL. RESULTS In 106 participants, there was good correlation but poor agreement in the ODI generated by the two systems. AL ODI values tended to be higher than Comp ODI values, but with significant variability. For ODI4%, bias was 4.4 events/h (95% limits of agreement -5.8 to 14.6 events/h). There was excellent correlation and agreement when the same oximetry raw data was analyzed by both systems. For ODI4%, bias was 0.03 events/h (95% limits of agreement -2.7 to 2.8 events/h). Similar results were evident when the ODI3% was used. CONCLUSIONS There is a clinically significant difference in ODI values generated by the two systems, likely due to device signal processing, rather than difference in ODI calculation algorithms.
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Affiliation(s)
- Yvonne Ng
- Department of Lung and Sleep Medicine, Monash Health, Victoria, Australia
| | - Simon A Joosten
- Department of Lung and Sleep Medicine, Monash Health, Victoria, Australia.,School of Clinical Sciences, Monash University, Victoria, Australia.,Monash Partners, Epworth, Victoria, Australia
| | - Bradley A Edwards
- Sleep and Circadian Medicine Laboratory, Department of Physiology, Monash University, Victoria, Australia.,School of Psychological Sciences and Monash Institute of Cognitive and Clinical Neurosciences, Monash University, Victoria, Australia
| | - Anthony Turton
- Department of Lung and Sleep Medicine, Monash Health, Victoria, Australia
| | - Helen Romios
- Department of Lung and Sleep Medicine, Monash Health, Victoria, Australia
| | - Thilini Samarasinghe
- Department of Lung and Sleep Medicine, Monash Health, Victoria, Australia.,Hudson Institute of Medical Research, Victoria, Australia
| | - Shane Landry
- Sleep and Circadian Medicine Laboratory, Department of Physiology, Monash University, Victoria, Australia.,School of Psychological Sciences and Monash Institute of Cognitive and Clinical Neurosciences, Monash University, Victoria, Australia
| | - Darren R Mansfield
- Department of Lung and Sleep Medicine, Monash Health, Victoria, Australia.,Monash Partners, Epworth, Victoria, Australia.,School of Psychological Sciences and Monash Institute of Cognitive and Clinical Neurosciences, Monash University, Victoria, Australia
| | - Garun S Hamilton
- Department of Lung and Sleep Medicine, Monash Health, Victoria, Australia.,School of Clinical Sciences, Monash University, Victoria, Australia.,Monash Partners, Epworth, Victoria, Australia
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Abstract
PURPOSE OF REVIEW Obstructive sleep apnea (OSA) is a significant risk factor for systemic hypertension and other cardiovascular diseases. While this relationship has been firmly established, a detailed understanding of how OSA leads to hypertension is lacking. This review will examine the emerging idea that the gut microbiota plays a role in the development of hypertension, including that associated with OSA. RECENT FINDINGS Disruption of the normal composition of the gut microbiota, termed dysbiosis, has been identified in a number of metabolic and cardiovascular diseases, including diabetes, obesity, and atherosclerosis. Recently, a number of studies have demonstrated gut dysbiosis in various animal models of hypertension as well as in hypertensive patients. Evidence is now emerging that gut dysbiosis plays a causal role in the development of OSA-induced hypertension. In this review, we will examine the evidence that gut dysbiosis plays a role in OSA-induced hypertension. We will discuss potential mechanisms linking OSA to gut dysbiosis, examine how gut dysbiosis may be linked to hypertension, and highlight how this understanding may be utilized for the development of future therapeutics.
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Affiliation(s)
- David J Durgan
- Department of Anesthesiology, Baylor College of Medicine, One Baylor Plaza, Room 434D, Houston, TX, 77030, USA.
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45
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Physiopathologie du syndrome d’apnées-hypopnées obstructives du sommeil et de ses conséquences cardio-métaboliques. Presse Med 2017; 46:395-403. [DOI: 10.1016/j.lpm.2016.09.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 09/05/2016] [Indexed: 01/03/2023] Open
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46
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Wszedybyl-Winklewska M, Wolf J, Swierblewska E, Kunicka K, Gruszecka A, Gruszecki M, Kucharska W, Winklewski PJ, Zabulewicz J, Guminski W, Pietrewicz M, Frydrychowski AF, Bieniaszewski L, Narkiewicz K. Acute hypoxia diminishes the relationship between blood pressure and subarachnoid space width oscillations at the human cardiac frequency. PLoS One 2017; 12:e0172842. [PMID: 28241026 PMCID: PMC5328277 DOI: 10.1371/journal.pone.0172842] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 02/10/2017] [Indexed: 12/20/2022] Open
Abstract
Background Acute hypoxia exerts strong effects on the cardiovascular system. Heart-generated pulsatile cerebrospinal fluid motion is recognised as a key factor ensuring brain homeostasis. We aimed to assess changes in heart-generated coupling between blood pressure (BP) and subarachnoid space width (SAS) oscillations during hypoxic exposure. Methods Twenty participants were subjected to a controlled decrease in oxygen saturation (SaO2 = 80%) for five minutes. BP and heart rate (HR) were measured using continuous finger-pulse photoplethysmography, oxyhaemoglobin saturation with an ear-clip sensor, end-tidal CO2 with a gas analyser, and cerebral blood flow velocity (CBFV), pulsatility and resistive indices with Doppler ultrasound. Changes in SAS were recorded with a recently-developed method called near-infrared transillumination/backscattering sounding. Wavelet transform analysis was used to assess the relationship between BP and SAS oscillations. Results Gradual increases in systolic, diastolic BP and HR were observed immediately after the initiation of hypoxic challenge (at fifth minute +20.1%, +10.2%, +16.5% vs. baseline, respectively; all P<0.01), whereas SAS remained intact (P = NS). Concurrently, the CBFV was stable throughout the procedure, with the only increase observed in the last two minutes of deoxygenation (at the fifth minute +6.8% vs. baseline, P<0.05). The cardiac contribution to the relationship between BP and SAS oscillations diminished immediately after exposure to hypoxia (at the fifth minute, right hemisphere -27.7% and left hemisphere -26.3% vs. baseline; both P<0.05). Wavelet phase coherence did not change throughout the experiment (P = NS). Conclusions Cerebral haemodynamics seem to be relatively stable during short exposure to normobaric hypoxia. Hypoxia attenuates heart-generated BP SAS coupling.
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Affiliation(s)
| | - Jacek Wolf
- Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland
| | - Ewa Swierblewska
- Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland
| | - Katarzyna Kunicka
- Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland
| | - Agnieszka Gruszecka
- Department of Radiology Informatics and Statistics, Medical University of Gdansk, Gdansk, Poland
| | - Marcin Gruszecki
- Department of Radiology Informatics and Statistics, Medical University of Gdansk, Gdansk, Poland
| | - Wieslawa Kucharska
- Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland
| | - Pawel J. Winklewski
- Institute of Human Physiology, Medical University of Gdansk, Gdansk, Poland
- Institute of Health Sciences, Pomeranian University of Slupsk, Slupsk, Poland
| | - Joanna Zabulewicz
- Institute of Human Physiology, Medical University of Gdansk, Gdansk, Poland
| | - Wojciech Guminski
- Department of Computer Communications, Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, Gdansk, Poland
| | - Michal Pietrewicz
- Department of Biomedical Engineering, Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, Gdansk, Poland
| | | | | | - Krzysztof Narkiewicz
- Department of Hypertension and Diabetology, Medical University of Gdansk, Gdansk, Poland
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Martin RA, Strosnider C, Giersch G, Womack CJ, Hargens TA. The effect of acute aerobic exercise on hemostasis in obstructive sleep apnea. Sleep Breath 2017; 21:623-629. [PMID: 28197892 DOI: 10.1007/s11325-017-1477-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 01/04/2017] [Accepted: 02/01/2017] [Indexed: 10/20/2022]
Abstract
PURPOSE Individuals with obstructive sleep apnea (OSA) have an altered hemostatic balance; however, the exercise response is less described. The purpose of this study is to determine the hemostatic response after acute aerobic exercise in obstructive sleep apnea. METHODS Eighteen males (nine OSA vs. nine controls) were recruited from the university and local community. Individuals with evidence of cardiovascular, pulmonary, or metabolic disease were excluded. An apnea-hypopnea index (AHI) of >5 was a criterion for OSA. Subjects performed a treadmill exercise test at 35 and 70% predicted VO2 reserve during the morning hours. Pre-exercise blood samples were obtained after 15 min supine rest and within 2 min following exercise. Repeated measures ANOVA were performed for factor VIII antigen, tissue plasminogen activator (tPA) antigen, tPA activity, and PAI-1 activity. Correlational analysis compared resting and post-exercise hemostatic factors with age, BMI, and AHI. RESULTS Mean AHI was 13.00 ± 12.6. No exercise × condition interactions were observed for hemostatic markers. There was a main effect for exercise in factor VIII, tPA antigen, and tPA activity in both groups. PAI-1 activity tended to be elevated in OSA (145%) compared to controls which remained after exercise (205%) (P = 0.05). Post-exercise FVIII/Ag correlated with BMI (r = 0.52), while resting tPA/Ag correlated with AHI (r = 0.49) and age (r = 0.50). CONCLUSION The hemostatic response after acute aerobic exercise is unaffected in mild OSA, although PAI-1 activity seems to be elevated, reducing fibrinolytic potential. BMI seems to correlate with FVIII/Ag, while tPA/Ag is associated with AHI and age.
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Affiliation(s)
- Ryan A Martin
- Department of Kinesiology, James Madison University, Harrisonburg, VA, 22807, USA
| | - Courtney Strosnider
- Department of Kinesiology, James Madison University, Harrisonburg, VA, 22807, USA
| | - Gabrielle Giersch
- Department of Kinesiology, James Madison University, Harrisonburg, VA, 22807, USA
| | - Christopher J Womack
- Department of Kinesiology, James Madison University, Harrisonburg, VA, 22807, USA
| | - Trent A Hargens
- Department of Kinesiology, James Madison University, Harrisonburg, VA, 22807, USA.
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Chang YT, Lin HC, Chang WN, Tsai NW, Huang CC, Wang HC, Kung CT, Su YJ, Lin WC, Cheng BC, Su CM, Chen TY, Chiang YF, Lu CH. Impact of inflammation and oxidative stress on carotid intima-media thickness in obstructive sleep apnea patients without metabolic syndrome. J Sleep Res 2016; 26:151-158. [PMID: 27896929 DOI: 10.1111/jsr.12477] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 10/17/2016] [Indexed: 11/30/2022]
Abstract
Obstructive sleep apnea (OSA) increases the risk of cardiovascular diseases, and carotid intima-media thickness (IMT) is a good indicator of the severity of atherosclerotic disease. This study tested the hypothesis that inflammation and oxidative stress determined carotid IMT in patients with OSA. The carotid IMT, mean systolic and diastolic pressure (night and morning) were significantly higher and the level of thiols and high-density lipoprotein were significantly lower in our 121 OSA patients than in 27 controls (P < 0.05). The apnea/hypopnea index was correlated positively with E-selectin (r = 0.222, P = 0.014), total cholesterol (r = 0.185, P = 0.042), low-density lipoprotein (r = 0.264, P = 0.003) and HbA1c levels (r = 0.304, P = 0.001), but inversely with high-density lipoprotein level (r = -0.203, P = 0.025) in the 121 patients with OSA. In OSA subjects, multiple linear regression analysis revealed that age, systolic blood pressure and intercellular cell adhesion molecule-1 level associated independently with carotid IMT. Besides both age and systolic blood pressure, our study demonstrated that intercellular cell adhesion molecule-1 level was associated significantly with carotid IMT in those patients who had OSA but without metabolic syndrome.
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Affiliation(s)
- Ya-Ting Chang
- Department of Neurology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Section of Neurology, Department of Medicine, Pingtung Christian Hospital, Pingtung, Taiwan
| | - Hsin-Ching Lin
- Department of Otolaryngology and Sleep Center, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wen-Neng Chang
- Department of Neurology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Nai-Wen Tsai
- Department of Neurology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih-Cheng Huang
- Department of Neurology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hung-Chen Wang
- Department of Neurosurgery, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chia-Te Kung
- Department of Emergency Medicine, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yu-Jih Su
- Department of Medicine, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wei-Che Lin
- Department of Radiology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ben-Chung Cheng
- Department of Medicine, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Biological Science, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Chih-Min Su
- Department of Emergency Medicine, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ting-Yao Chen
- Department of Neurology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yi-Fang Chiang
- Section of Neurology, Department of Medicine, Pingtung Christian Hospital, Pingtung, Taiwan
| | - Cheng-Hsien Lu
- Department of Neurology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Biological Science, National Sun Yat-Sen University, Kaohsiung, Taiwan.,Department of Neurology, Xiamen Chang Gung Memorial Hospital, Xiamen, China
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Abstract
Obstructive sleep apnea (OSA) is a common disease, often present in "cardiovascular or metabolic patients". OSA favours the occurrence of arterial lesions, all the more if severe. There is a strong relationship between OSA and acute aortic syndromes (AAS). This relationship is in part explained by aortic dilatation linked to OSA. The presence of repeated episodes of sudden variation of transmural pressure applied on aortic wall seems to play a major role in this dilatation. All OSA patients should have a search of aortic dilatation by ultrasound (at a thoracic and abdominal level). Also, screening of OSA should be systematically performed in patients with aortic disease. The effect of continuous positive airway pressure in apneic patients with AAS has not been studied.
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Affiliation(s)
- Jean-Philippe Baguet
- Groupe hospitalier mutualiste de Grenoble, service de cardiologie, 8, rue Docteur-Calmette, 38028 Grenoble, France; Université Grenoble Alpes, radiopharmaceutiques biocliniques, Inserm U1039, 38043 Grenoble, France.
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50
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Can continuous positive air way pressure reverse carotid artery atherosclerosis in obstructive sleep apnea? EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2016. [DOI: 10.1016/j.ejcdt.2016.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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