1
|
Koritala BSC, Gaspar LS, Bhadri SS, Massie KS, Lee YY, Paulose J, Smith DF. Murine Pro-Inflammatory Responses to Acute and Sustained Intermittent Hypoxia: Implications for Obstructive Sleep Apnea Research. Laryngoscope 2024; 134 Suppl 4:S1-S11. [PMID: 37540033 PMCID: PMC10838350 DOI: 10.1002/lary.30915] [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: 04/24/2023] [Revised: 07/05/2023] [Accepted: 07/14/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVES Obstructive sleep apnea (OSA) is characterized by chronic systemic inflammation; however, the mechanisms underlying these pathologic consequences are incompletely understood. Our objective was to determine the effects of short- versus long-term exposure to intermittent hypoxia (IH) on pro-inflammatory mediators within vulnerable organs impacted by OSA. STUDY DESIGN Experimental animal study. METHODS A total of 8-10 week old C57BL/6J mice were exposed to normoxic or IH conditions for 7 days (short-term) or 6 weeks (long-term) under 12 h light, 12 h dark cycles. After exposure, multiple tissues were collected over a 24 h period. These tissues were processed and evaluated for gene expression and protein levels of pro-inflammatory mediators from peripheral tissues. RESULTS We observed a global decrease in immune response pathways in the heart, lung, and liver compared with other peripheral organs after short-term exposure to IH. Although there were tissue-specific alterations in the gene expression of pro-inflammatory mediators, with down-regulation in the lung and up-regulation in the heart, we also observed reduced protein levels of pro-inflammatory mediators in the serum, lung, and heart following short-term exposure to IH. Long-term exposure to IH resulted in an overall increase in the levels of inflammatory mediators in the serum, lung, and heart. CONCLUSIONS We demonstrated novel, longitudinal changes in the inflammatory cascade in a mouse model of OSA. The duration of exposure to IH led to significant variability of inflammatory responses within blood and cardiopulmonary tissues. Our findings further elucidate how inflammatory responses change over the course of the disease in vulnerable organs. LEVEL OF EVIDENCE NA Laryngoscope, 134:S1-S11, 2024.
Collapse
Affiliation(s)
- Bala S. C. Koritala
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Laetitia S. Gaspar
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Shweta S. Bhadri
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Kyla S. Massie
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- University of California San Diego, San Diego, California, 92093, USA
| | - Yin Yeng Lee
- Department of Pediatrics, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Jiffin Paulose
- Department of Pediatrics, Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - David F. Smith
- Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
- Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- The Sleep Center, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- The Center for Circadian Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| |
Collapse
|
2
|
Sánchez-Tirado E, Agüí L, González-Cortés A, Campuzano S, Yáñez-Sedeño P, Pingarrón JM. Electrochemical (Bio)Sensing Devices for Human-Microbiome-Related Biomarkers. SENSORS (BASEL, SWITZERLAND) 2023; 23:837. [PMID: 36679633 PMCID: PMC9864681 DOI: 10.3390/s23020837] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/02/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
The study of the human microbiome is a multidisciplinary area ranging from the field of technology to that of personalized medicine. The possibility of using microbiota biomarkers to improve the diagnosis and monitoring of diseases (e.g., cancer), health conditions (e.g., obesity) or relevant processes (e.g., aging) has raised great expectations, also in the field of bioelectroanalytical chemistry. The well-known advantages of electrochemical biosensors-high sensitivity, fast response, and the possibility of miniaturization, together with the potential for new nanomaterials to improve their design and performance-position them as unique tools to provide a better understanding of the entities of the human microbiome and raise the prospect of huge and important developments in the coming years. This review article compiles recent applications of electrochemical (bio)sensors for monitoring microbial metabolites and disease biomarkers related to different types of human microbiome, with a special focus on the gastrointestinal microbiome. Examples of electrochemical devices applied to real samples are critically discussed, as well as challenges to be faced and where future developments are expected to go.
Collapse
|
3
|
Li X, Liu X, Meng Q, Wu X, Bing X, Guo N, Zhao X, Hou X, Wang B, Xia M, Li H. Circadian clock disruptions link oxidative stress and systemic inflammation to metabolic syndrome in obstructive sleep apnea patients. Front Physiol 2022; 13:932596. [PMID: 36105285 PMCID: PMC9466597 DOI: 10.3389/fphys.2022.932596] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives: Obstructive sleep apnea (OSA) is an independent risk factor for metabolic syndrome (MetS). Recent studies have indicated that circadian clock genes were dysregulated in OSA. In addition, it is clear that the impairment of circadian clocks drives the progression of MetS. Therefore, we hypothesized that circadian rhythm disruption links OSA with MetS.Methods: A total of 118 participants, who underwent polysomnography (PSG) and were diagnosed as healthy snorers (control, n = 29) or OSA (n = 89) patients based on the apnea–hypopnea index (AHI), were enrolled in the present study. General information, anthropometric data, blood biochemical indicators, clock gene expressions, and levels of oxidative and inflammatory indicators were collected, determined, and compared in all the participants.Results: We found that Brain and muscle aryl hydrocarbon receptor nuclear translocator-like protein 1 (Bmal1) and Differentiated embryo chondrocyte 1 (Dec1) were upregulated, while Period 1 (Per1) was reduced in OSA patients. In addition, these changing trends were closely associated with the hypoxia indicator of AHI and have a significant impact on the presence of MetS components, such as hyperglycemia (Dec1 and Per1, p < 0.05 and 0.001, respectively), hypertension (Bmal1 and Dec1, p < 0.001 and 0.01, respectively), hyperlipidemia (Dec1, p < 0.01), and obesity (Dec1, p < 0.05). Notably, expressions of Dec1 correlated with IR and predicted the presence of MetS in OSA patients. Finally, we also observed that Dec1 expression was interrelated with levels of both oxidative indicators and inflammatory biomarkers (IL-6) in OSA.Conclusion: This study concluded that circadian clock disruptions, especially Dec1, link OSA with MetS in an oxidative and inflammatory-related manner. Circadian clock Dec1 can be used as a specific biomarker (p < 0.001) and therapeutic target in OSA combined with Mets patients.
Collapse
Affiliation(s)
- Xiaoming Li
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xuejian Liu
- Department of Thyroid and Breast Surgery, Shandong Provincial Third Hospital, Jinan, China
| | - Qiu Meng
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xinhao Wu
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xin Bing
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Na Guo
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xuening Zhao
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xiaozhi Hou
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Baowei Wang
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Ming Xia
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Hui Li, ; Ming Xia,
| | - Hui Li
- Department of Otolaryngology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Hui Li, ; Ming Xia,
| |
Collapse
|
4
|
Wu LH, Hong CX, Zhao ZW, Huang YF, Li HY, Cai HL, Gao ZS, Wu Z. Effect of positive airway pressure on cardiac troponins in patients with sleep-disordered breathing: A meta-analysis. Clin Cardiol 2022; 45:567-573. [PMID: 35312073 PMCID: PMC9045066 DOI: 10.1002/clc.23817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background Cardiac troponins are highly sensitive and specific biomarkers for cardiac injury. Previous studies evaluating the effect of positive airway pressure (PAP) on cardiac troponins in patients with sleep‐disordered breathing (SDB) have yielded conflicting results. The meta‐analysis was performed to examine the effect of PAP on cardiac troponins in SDB patients. Methods PubMed, Web of Science, and EMBASE before September 2021 on original English language studies were searched. The data on cardiac troponins in both baseline and post‐PAP treatment were extracted from all studies. The data on the change of cardiac troponins in both PAP and control group were extracted from randomized controlled trials. Standardized mean difference (SMD) was used to synthesize quantitative results. Results A total of 11 studies were included. PAP treatment was not associated with a significant change in cardiac troponin T between the baseline and post‐PAP treatment (SMD = −0.163, 95% confidence interval [CI] = −0.652 to 0.326, z = 0.65, p = .514). The pooled estimate of SMD of cardiac troponin I between the pre‐ and post‐PAP treatment was 0.287, and the 95% CI was −0.586 to 1.160 (z = 0.64, p = .519). The pooled SMD of change of cardiac troponin T between the PAP group and control group was −0.473 (95% CI = −1.198 to 0.252, z = 1.28, p = .201). Conclusions This meta‐analysis revealed that PAP treatment was not associated with any change of cardiac troponin in SDB patients.
Collapse
Affiliation(s)
- Li-Hua Wu
- Department of Respiratory and Critical Care Medicine, The First Hospital of Putian City, Putian, Fujian Province, People's Republic of China
| | - Cai-Xia Hong
- Department of Gynecology, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, People's Republic of China
| | - Zhi-Wei Zhao
- Department of Otolaryngology, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, People's Republic of China
| | - Yan-Fei Huang
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, People's Republic of China
| | - Huo-Yu Li
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, People's Republic of China
| | - Hong-Ling Cai
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, People's Republic of China
| | - Zhi-Sen Gao
- Department of Respiratory and Critical Care Medicine, The First Hospital of Putian City, Putian, Fujian Province, People's Republic of China
| | - Zhi Wu
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, People's Republic of China
| |
Collapse
|
5
|
Dieltjens M, Vanderveken OM, Shivalkar B, Van Haesendonck G, Kastoer C, Heidbuchel H, Braem MJ, Van De Heyning CM. Mandibular advancement device treatment and reverse left ventricular hypertrophic remodeling in patients with obstructive sleep apnea. J Clin Sleep Med 2022; 18:903-909. [PMID: 34728052 PMCID: PMC8883081 DOI: 10.5664/jcsm.9766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Obstructive sleep apnea (OSA) is associated with cardiovascular comorbidities such as left ventricular (LV) hypertrophy. Whether OSA is an independent etiological factor for this hypertrophic remodeling is yet unknown. Continuous positive airway pressure partially reverses this hypertrophy, but data regarding the effect of mandibular advancement devices on LV remodeling are scarce. The aim of this prospective trial is to evaluate the effect of mandibular advancement device therapy on LV geometry and function in patients with OSA. METHODS At baseline and 6-month follow-up, participants underwent a home sleep apnea test, 24-hour ambulatory blood pressure monitoring and a 2-dimensional Doppler and tissue Doppler echocardiography. RESULTS Sixty-three patients (age: 49 ± 11 years; body mass index: 27.0 ± 3.4 kg/m2; baseline apnea-hypopnea index home sleep apnea test: 11.7 [8.2; 24.9] events/h) completed the 6-month follow-up visit. Overall, blood pressure values and parameters of LV function were within normal ranges at baseline and did not change under mandibular advancement device therapy. In contrast, the interventricular septum thickness was at the upper limits of normal at baseline and showed a significant decrease at 6-month follow-up (11.1 ± 2.1 mm vs 10.6 ± 2.0 mm, P = .03). This significant improvement is only found in responders but not in nonresponders. There was no correlation between the decrease of interventricular septum thickness and the change in blood pressure. CONCLUSIONS In mildly obese, normotensive patients with OSA we observed significant reverse hypertrophic remodeling after 6 months of successful mandibular advancement device therapy, with maintained normotensive systemic blood pressure. This suggests that OSA is an independent factor in the pathophysiology of LV hypertrophy in these patients. CLINICAL TRIAL REGISTRATION Registry: ClinicalTrials.gov; Name: Evaluation of the Cardiovascular Effects of the MAS in the Treatment of Obstructive Sleep Apnea; URL: https://clinicaltrials.gov/ct2/show/NCT02320877; Identifier: NCT02320877. CITATION Dieltjens M, Vanderveken OM, Shivalkar B, et al. Mandibular advancement device treatment and reverse left ventricular hypertrophic remodeling in patients with obstructive sleep apnea. J Clin Sleep Med. 2022;18(3):903-909.
Collapse
Affiliation(s)
- Marijke Dieltjens
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium,Otolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium,Address correspondence to: Marijke Dieltjens, PhD, Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1–D.T.493, 2610 Wilrijk, Belgium;
| | - Olivier M. Vanderveken
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium,Otolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Bharati Shivalkar
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium,Department of Cardiology, Delta (CHIREC) Hospital, Brussels, Belgium,Pfizer Biopharmaceuticals, Brussels, Belgium
| | - Gilles Van Haesendonck
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium,Otolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Chloé Kastoer
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium,Otolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Hein Heidbuchel
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium,Department of Cardiology, Antwerp University Hospital, Antwerp, Belgium
| | - Marc J. Braem
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium,Otolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Caroline M. Van De Heyning
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium,Department of Cardiology, Antwerp University Hospital, Antwerp, Belgium
| |
Collapse
|
6
|
Wali SO, Manzar MD, Abdelaziz MM, Alshomrani R, Alhejaili F, Al-Mughales J, Alamoudi W, Gozal D. Putative associations between inflammatory biomarkers, obesity, and obstructive sleep apnea. Ann Thorac Med 2021; 16:329-336. [PMID: 34820020 PMCID: PMC8588947 DOI: 10.4103/atm.atm_644_20] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 04/08/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND: Previous studies have reported increased levels of inflammatory mediators in patients with obstructive sleep apnea (OSA), but their relation with the severity of OSA is controversial. OBJECTIVE: To address potential relationships between OSA-related inflammatory markers, namely, C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and fibrinogen, with different oxygenation parameters and with BMI. METHODS: All eligible patients with suspected OSA newly referred to the Sleep Medicine Research Center at King Abdulaziz University Hospital, Jeddah, were evaluated demographically and anthropometrically, and underwent overnight polysomnography. Fasting morning blood samples were collected to measure serum levels of CRP, fibrinogen, TNF-α, and IL-6. Potential correlations between these inflammatory mediators and severity measures of OSA and body mass index (BMI) were explored. RESULTS: Sixty-four patients completed the study (40 with OSA and 24 without OSA). Significantly increased levels of CRP, fibrinogen, IL-6, and TNF-α emerged in patients with OSA compared to non-OSA. Significant associations between log CRP and log fibrinogen levels emerged with increasing BMI. However, there was no significant association between any of the inflammatory markers and the severity of OSA based on the apnea/hypopnea index or oxyhemoglobin saturation-derived parameters. CONCLUSIONS: OSA patients exhibit increased levels of inflammatory mediators that do not appear to be associated with polysomnographic measures, but exhibit positive correlation with the degree of adiposity.
Collapse
Affiliation(s)
- Siraj Omar Wali
- Department of Internal Medicine, Faculty of Medicine, Sleep Medicine and Research Center, Sleep Medicine Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Md Dilshad Manzar
- Department of Nursing, College of Applied Medical Sciences, Majmaah University, Al Majmaah, Saudi Arabia
| | - Mohammed M Abdelaziz
- Department of Medicine, Wythenshawe Hospital, Manchester University NHS Trust, Manchester, UK
| | - Ranya Alshomrani
- Department of Internal Medicine, Faculty of Medicine, Sleep Medicine and Research Center, Sleep Medicine Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Faris Alhejaili
- Department of Internal Medicine, Faculty of Medicine, Sleep Medicine and Research Center, Sleep Medicine Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jamil Al-Mughales
- Department of Clinical Laboratory Medicine, Immunology Lab, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Wail Alamoudi
- Department of Medicine, King Abdulaziz University - Rabigh Branch, Rabigh, Saudi Arabia
| | - David Gozal
- Department of Child Health, Child Health Research Institute, The University of Missouri School of Medicine, Columbia, MO, USA
| |
Collapse
|
7
|
Mashaqi S, Mansour HM, Alameddin H, Combs D, Patel S, Estep L, Parthasarathy S. Matrix metalloproteinase-9 as a messenger in the cross talk between obstructive sleep apnea and comorbid systemic hypertension, cardiac remodeling, and ischemic stroke: a literature review. J Clin Sleep Med 2021; 17:567-591. [PMID: 33108267 DOI: 10.5664/jcsm.8928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
STUDY OBJECTIVES OSA is a common sleep disorder. There is a strong link between sleep-related breathing disorders and cardiovascular and cerebrovascular diseases. Matrix metalloproteinase-9 (MMP-9) is a biological marker for extracellular matrix degradation, which plays a significant role in systemic hypertension, myocardial infarction and postmyocardial infarction heart failure, and ischemic stroke. This article reviews MMP-9 as an inflammatory mediator and a potential messenger between OSA and OSA-induced comorbidities. METHODS We reviewed the MEDLINE database (PubMed) for publications on MMP-9, OSA, and cardiovascular disease, identifying 1,592 studies and including and reviewing 50 articles for this work. RESULTS There is strong evidence that MMP-9 and tissue inhibitor of metalloproteinase-1 levels are elevated in patients with OSA (mainly MMP-9), systemic hypertension, myocardial infarction, and postmyocardial infarction heart failure. Our study showed variable results that could be related to the sample size or to laboratory methodology. CONCLUSIONS MMP-9 and its endogenous inhibitor, tissue inhibitor of metalloproteinase-1, are a common denominator in OSA, systemic hypertension, myocardial infarction, and heart failure. This characterization makes MMP-9 a target for developing novel selective inhibitors that can serve as adjuvant therapy in patients with OSA, which may ameliorate the cardiovascular and cerebrovascular mortality associated with OSA.
Collapse
Affiliation(s)
- Saif Mashaqi
- UAHS Center for Sleep and Circadian Sciences and Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Heidi M Mansour
- The University of Arizona College of Pharmacy, Tucson, Arizona.,Division of Translational and Regenerative Medicine, Department of Medicine, The University of Arizona College of Medicine, Tucson, Arizona
| | - Hanan Alameddin
- The University of Arizona College of Pharmacy, Tucson, Arizona
| | - Daniel Combs
- UAHS Center for Sleep and Circadian Sciences and Division of Pulmonary and Sleep Medicine, Department of Pediatrics, University of Arizona, University of Arizona, Tucson, Arizona
| | - Salma Patel
- UAHS Center for Sleep and Circadian Sciences and Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Lauren Estep
- UAHS Center for Sleep and Circadian Sciences and Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| | - Sairam Parthasarathy
- UAHS Center for Sleep and Circadian Sciences and Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Arizona, Tucson, Arizona
| |
Collapse
|
8
|
Elevation of CD40/CD40L Inflammatory Pathway Molecules in Carotid Plaques from Moderate-and-Severe Obstructive Sleep Apnea Patients. Diagnostics (Basel) 2021; 11:diagnostics11060935. [PMID: 34067481 PMCID: PMC8224789 DOI: 10.3390/diagnostics11060935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 11/30/2022] Open
Abstract
A chronic inflammatory process characteristic of obstructive sleep apnea promotes vascular endothelial dysfunction and atherogenesis. This process can lead to destabilization and rupture of cardiovascular plaques, which clinically manifests as an acute coronary syndrome or stroke. The aim of this study was to investigate the inflammatory pathway leading to plaque destabilization in non-to-mild and moderate-to-severe groups of OSA patients. This prospective study involved enrollment of patients scheduled for endarterectomy. A sleep study was performed prior to surgery. Immunohistochemistry was performed on atherosclerotic plaques from carotid arteries obtained during standard open endarterectomy to determine levels of CD40, CD40L receptors, MCP-1, and MMP-9. The 46 patients included 14 controls, 13 with mild, 11 with moderate, and 8 with severe OSA. Increased expression of CD40, CD40L receptors, MCP-1, and MMP-9 were found to be proportionate with OSA severity. However, significant differences among groups were observed only for MCP-1 (p = 0.014). Increased expression of inflammatory markers (CD40, CD40L, MCP-1, MMP-9) is associated with increasing OSA severity. This suggests the CD40-CD4-L inflammatory pathway may contribute to plaque instability and rupture in OSA patients.
Collapse
|
9
|
Ambati A, Ju YE, Lin L, Olesen AN, Koch H, Hedou JJ, Leary EB, Sempere VP, Mignot E, Taheri S. Proteomic biomarkers of sleep apnea. Sleep 2021; 43:5830732. [PMID: 32369590 DOI: 10.1093/sleep/zsaa086] [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: 10/26/2019] [Revised: 04/09/2020] [Indexed: 12/25/2022] Open
Abstract
STUDY OBJECTIVES Obstructive sleep apnea (OSA) is characterized by recurrent partial to complete upper airway obstructions during sleep, leading to repetitive arousals and oxygen desaturations. Although many OSA biomarkers have been reported individually, only a small subset have been validated through both cross-sectional and intervention studies. We sought to profile serum protein biomarkers in OSA in unbiased high throughput assay. METHODS A highly multiplexed aptamer array (SomaScan) was used to profile 1300 proteins in serum samples from 713 individuals in the Stanford Sleep Cohort, a patient-based registry. Outcome measures derived from overnight polysomnography included Obstructive Apnea Hypopnea Index (OAHI), Central Apnea Index (CAI), 2% Oxygen Desaturation index, mean and minimum oxygen saturation indices during sleep. Additionally, a separate intervention-based cohort of 16 individuals was used to assess proteomic profiles pre- and post-intervention with positive airway pressure. RESULTS OAHI was associated with 65 proteins, predominantly pathways of complement, coagulation, cytokine signaling, and hemostasis which were upregulated. CAI was associated with two proteins including Roundabout homolog 3 (ROBO3), a protein involved in bilateral synchronization of the pre-Bötzinger complex and cystatin F. Analysis of pre- and post intervention samples revealed IGFBP-3 protein to be increased while LEAP1 (Hepicidin) to be decreased with intervention. An OAHI machine learning classifier (OAHI >=15 vs OAHI<15) trained on SomaScan protein measures alone performed robustly, achieving 76% accuracy in a validation dataset. CONCLUSIONS Multiplex protein assays offer diagnostic potential and provide new insights into the biological basis of sleep disordered breathing.
Collapse
Affiliation(s)
- Aditya Ambati
- Center for Sleep Sciences and Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Yo-El Ju
- Department of Neurology, Washington University School of Medicine, St. Louis, MO
| | - Ling Lin
- Center for Sleep Sciences and Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Alexander N Olesen
- Center for Sleep Sciences and Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Henriette Koch
- Center for Sleep Sciences and Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Julien Jacques Hedou
- Center for Sleep Sciences and Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Eileen B Leary
- Center for Sleep Sciences and Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Vicente Peris Sempere
- Center for Sleep Sciences and Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Emmanuel Mignot
- Center for Sleep Sciences and Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Shahrad Taheri
- Department of Medicine and Clinical Research Core, Weill Cornell Medicine-Qatar, Qatar Foundation-Education City, Doha, Qatar
| |
Collapse
|
10
|
Xie L, Zhen P, Yu F, Yu X, Qian H, Yang F, Tong J. Effects of sleep apnea hypopnea syndromes on cardiovascular events: a systematic review and meta-analysis. Sleep Breath 2021; 26:5-15. [PMID: 33772396 DOI: 10.1007/s11325-021-02294-3] [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: 09/20/2020] [Revised: 12/13/2020] [Accepted: 01/05/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Previous studies suggest that sleep apnea hypopnea syndrome (SAHS) is an independent risk factor that contributes to certain cardiovascular events. However, there are studies arguing that patients with SAHS had lower peak troponin levels when suffering cardiovascular events compared to patients without SAHS, which indicates that there may potentially be a protective effect of SAHS. This meta-analysis aimed to assess the impact of SAHS on cardiovascular events. METHODS Databases were searched for studies that examined cardiac biomarkers or reported angiographic data when patients with SAHS experienced cardiovascular events. The data about peak cardiac biomarkers and angiographic coronary lesion were extracted and then used to compute the pooled standardized mean difference (SMD) and 95% confidence interval (95% CI). RESULTS Among 26 studies included in the meta-analysis, there was not a definite difference between the SAHS group and the control group for troponins (SMD, 0.05; 95% CI, [- 0.16, 0.26]), creatine kinase (SMD, - 0.08; 95% CI, [- 0.38, 0.22]), and CK-MB (SMD, - 0.11; 95% CI, [- 0.51, 0.29]). However, patients with SAHS revealed worse coronary lesion condition grading via both Gensini score (SMD, 0.63; 95% CI, [0.31, 0.95]) and SYNTAX score (SMD, 0.99; 95% CI, [0.31-1.67]). CONCLUSIONS Ischemic preconditioning induced by the intermittent hypoxia at the early stage could generate a cardiac protection effect, which would then benefit SAHS patients encountering a major adverse cardiovascular event.
Collapse
Affiliation(s)
- Liang Xie
- School of Medicine, Southeast University, Nanjing, China.,Jinling Hospitial, School of Medicine, Nanjing University, Nanjing, China
| | - Penghao Zhen
- School of Medicine, Southeast University, Nanjing, China.,Department of Cardiology, Zhongda Hospital, Nanjing, China
| | - Fuchao Yu
- School of Medicine, Southeast University, Nanjing, China.,Department of Cardiology, Zhongda Hospital, Nanjing, China
| | - Xiaojin Yu
- School of Public Health, Southeast University, 87 Dingjiaqiao, Nanjing, China
| | - Hai Qian
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Fang Yang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biomedical Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Jiayi Tong
- School of Medicine, Southeast University, Nanjing, China. .,Department of Cardiology, Zhongda Hospital, Nanjing, China.
| |
Collapse
|
11
|
Elgart M, Redline S, Sofer T. Machine and Deep Learning in Molecular and Genetic Aspects of Sleep Research. Neurotherapeutics 2021; 18:228-243. [PMID: 33829409 PMCID: PMC8116376 DOI: 10.1007/s13311-021-01014-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2021] [Indexed: 12/11/2022] Open
Abstract
Epidemiological sleep research strives to identify the interactions and causal mechanisms by which sleep affects human health, and to design intervention strategies for improving sleep throughout the lifespan. These goals can be advanced by further focusing on the environmental and genetic etiology of sleep disorders, and by development of risk stratification algorithms, to identify people who are at risk or are affected by, sleep disorders. These studies rely on comprehensive sleep-related data which often contains complex multi-dimensional physiological and molecular measurements across multiple timepoints. Thus, sleep research is well-suited for the application of computational approaches that can handle high-dimensional data. Here, we survey recent advances in machine and deep learning together with the availability of large human cohort studies with sleep data that can jointly drive the next breakthroughs in the sleep-research field. We describe sleep-related data types and datasets, and present some of the tasks in the field that can be targets for algorithmic approaches, as well as the challenges and opportunities in pursuing them.
Collapse
Affiliation(s)
- Michael Elgart
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA USA
- Department of Medicine, Harvard Medical School, Boston, MA USA
| | - Susan Redline
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA USA
- Department of Medicine, Harvard Medical School, Boston, MA USA
| | - Tamar Sofer
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA USA
- Department of Medicine, Harvard Medical School, Boston, MA USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA USA
| |
Collapse
|
12
|
Wali SO, Al-Mughales J, Alhejaili F, Manzar MD, Alsallum F, Almojaddidi H, Gozal D. The utility of proinflammatory markers in patients with obstructive sleep apnea. Sleep Breath 2020; 25:545-553. [DOI: 10.1007/s11325-020-02149-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/05/2020] [Accepted: 07/12/2020] [Indexed: 10/23/2022]
|
13
|
Plasma Homocysteine and Autonomic Nervous Dysfunction: Association and Clinical Relevance in OSAS. DISEASE MARKERS 2020; 2020:4378505. [PMID: 32695242 PMCID: PMC7368224 DOI: 10.1155/2020/4378505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/09/2020] [Accepted: 06/11/2020] [Indexed: 12/26/2022]
Abstract
Objective Elevated plasma homocysteine (Hcy) is an independent risk factor for cardiovascular diseases, but the precise mechanism of Hcy in cardiovascular disease remains elusive. This study is aimed at evaluating the association between Hcy levels and autonomic nervous system and at investigating their clinical relevance in obstructive sleep apnea syndrome (OSAS). Methods A total of 191 subjects with OSAS were enrolled for this cross-sectional study. Heart rate variability (HRV) represents the status of the autonomic nervous system and is a well-known index that allows studying the autonomic modulation. HRV and polysomnography parameters were collected based on Holter monitors and polysomnography system. The software computed all the basic HRV parameters including SDANN, SDNN and pNN50. Correlation analyses between Hcy and HRV parameters and echocardiographic parameters were performed. Results Compared with the mild-moderate OSAS group, the prevalence of male and smoking and Hcy levels were considerably higher in the severe OSAS group (P = 0.01, P = 0.02, and P = 0.01, respectively). Also, there were significant linear relationships between Hcy quartiles with the proportion of severe OSAS (P = 0.01 for the trend). Interesting, there is a negative linear correlation between SDANN and Hcy quartiles (P = 0.02 for the trend). Spearman's correlation analysis showed a significant negative correlation between SDANN and Hcy levels (r = -0.17, P = 0.02). Interestingly, the relationship of it remains significant after adjustment for clinical covariates (r = -0.15, P = 0.04). However, echocardiographic parameters were not significantly correlated with Hcy or HRV parameters (all P > 0.05). Conclusions Elevated plasma Hcy level is linearly correlated with cardiac autonomic nervous function disorders in patients with OSAS.
Collapse
|
14
|
Yang H, Engeland CG, King TS, Sawyer AM. The relationship between diurnal variation of cytokines and symptom expression in mild obstructive sleep apnea. J Clin Sleep Med 2020; 16:715-723. [PMID: 32029067 PMCID: PMC7849796 DOI: 10.5664/jcsm.8332] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 12/29/2019] [Accepted: 12/30/2019] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To identify the relationship between (1) cytokines and everyday symptoms and (2) cytokine diurnal variation and everyday symptoms in mild obstructive sleep apnea (OSA). METHODS An observational, single-night study of 20 adults with mild to moderate OSA undergoing diagnostic polysomnography. Everyday symptoms included sleepiness measured by Stanford Sleepiness Scale, fatigue and energy levels measured by Lee Fatigue Scale, and cytokine plasma concentrations including interleukin (IL)-1β, IL-6, IL-8, and tumor necrosis factor-α (TNF-α) measured concurrent with symptoms at presleep (8 pm to 10 pm; time 1) and postsleep (5 am to 6 am; time. 2) Cytokine diurnal variation was calculated as [time 2 - time 1]. Wilcoxon signed-rank tests and Spearman partial rank correlations adjusted for age, body mass index, cardiovascular disease, and type 2 diabetes were used. RESULTS Twenty patients (50% male, obese, median age = 51.0 years) with mild OSA (apnea-hypopnea index, AHI; median 9.5 events/h) were evaluated. Evening IL-6 was associated with evening symptoms, including sleepiness (r = .69, P = .002) and energy level (r = -0.68, P = .003); morning IL-8 (r = .73, P = .001), and TNF-α (r = .59, P = .015) were associated with morning fatigue. Only morning IL-8 (r = -0.57, P = .022) and diurnal variations in IL-8 (r = -0.60, P = .014) were associated with morning energy level. CONCLUSION There is scant evidence addressing the diurnal variation of inflammatory biomarkers and the relationship with symptom expression in mild OSA. The present findings provide preliminary mechanistic findings for symptom expression in OSA and contribute insight to mild OSA symptom phenotypes.
Collapse
Affiliation(s)
- Hyunju Yang
- Chonnam National University, College of Nursing, Gwangju, South Korea
| | - Christopher G. Engeland
- The Pennsylvania State University, Department of Biobehavioral Health, University Park, Pennsylvania
- The Pennsylvania State University, College of Nursing, University Park, Pennsylvania
| | - Tonya S. King
- The Pennsylvania State University, College of Medicine, Department of Public Health Sciences, Hershey, Pennsylvania
| | - Amy M. Sawyer
- University of Pennsylvania, School of Nursing, Philadelphia, Pennsylvania
- Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, Pennsylvania
- University of Pennsylvania, Perelman School of Medicine, Center for Sleep & Circadian Neurobiology, Philadelphia, Pennsylvania
| |
Collapse
|
15
|
Lin CC, Liaw SF, Chiu CH, Lin MW. Effects of continuous positive airway pressure on exhaled transforming growth factor-β and vascular endothelial growth factor in patients with obstructive sleep apnea. J Thorac Dis 2020; 12:932-941. [PMID: 32274161 PMCID: PMC7138982 DOI: 10.21037/jtd.2019.12.55] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Background Both transforming growth factor β (TGF-β) and vascular endothelial growth factor (VEGF) are master regulators of airway remodeling; however, their pathological roles in obstructive sleep apnea (OSA) remain unclear. The aim of the present study was to evaluate the expression of TGF-β and VEGF protein in the serum and exhaled breath condensate (EBC) before and after continuous positive airway pressure (CPAP) treatment in OSA patients. Methods Forty patients with moderate to severe OSA requiring CPAP and 20 healthy subjects were prospectively recruited. The concentrations of TGF-β and VEGF protein in the serum and EBC were evaluated by enzyme-linked immunosorbent assay. All OSA patients underwent a sleep study that was repeated 3 months after receiving CPAP therapy. Results Protein concentrations of TGF-β and VEGF in the serum did not differ between healthy controls and OSA patients before CPAP treatment. There was also no difference in the serum protein concentrations of TGF-β and VEGF of the OSA patients before and after CPAP treatment. However, both the TGF-β and VEGF protein concentrations in the EBC were higher in the OSA patients than those in control subjects, and recovered to normal levels after CPAP. Conclusions Successful treatment of OSA by CPAP can restore the TGF-β and VEGF protein concentrations in the EBC.
Collapse
Affiliation(s)
- Ching-Chi Lin
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City
| | - Shwu-Fang Liaw
- Department of Medical Research, Mackay Memorial Hospital, Taipei
| | | | - Mei-Wei Lin
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City
| |
Collapse
|
16
|
Fang X, Chen J, Wang W, Feng G, Li X, Zhang X, Zhang Y, Zhang J, Xu Z, Tai J, Ni X. Matrix metalloproteinase 9 (MMP9) level and MMP9 -1562C>T in patients with obstructive sleep apnea: a systematic review and meta-analysis of case-control studies. Sleep Med 2020; 67:110-119. [PMID: 31918116 DOI: 10.1016/j.sleep.2019.11.1247] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 11/15/2019] [Accepted: 11/18/2019] [Indexed: 01/22/2023]
Abstract
BACKGROUND The peripheral level of matrix metalloproteinase (MMP)-9 and polymorphism of MMP9 -1562C>T in patients with obstructive sleep apnea (OSA) remains controversial. Therefore, the aims of this systemic review and meta-analysis are to assess the MMP9 level in OSA patients and identify the relationship between MMP9 -1562C>T and OSA susceptibility. METHODS This systematic review was performed following the PRISMA guideline. We searched for studies in major databases, identifying those indexed from inception to July 3, 2019 which related to MMP9 level, MMP9 -1562C>T and OSA. The pooled standardized mean differences (SMDs) and 95% confidence interval (CI) of MMP9 levels were calculated. In addition, the relationship between MMP9 -1562C>T and OSA susceptibility was assessed by three genetic models. The heterogeneity analysis and calculation of the pooled odds ratio (OR) were also performed, followed by quality assessment using the Newcastle-Ottawa Scale (NOS). RESULTS In sum, our review included 15 eligible studies regarding MMP9 level and three regarding MMP9 -1562C>T. The pooled results showed that peripheral level of MMP9 was increased in OSA patients (SMD = 1.37; 95% CI = 1.15-1.59). Furthermore, significant difference of MMP9 level can be found between severe and mild-to-moderate OSA patients (SMD = 28.17; 95% CI = 4.23-52.11) or between moderate-severe and mild OSA (SMD = 36.62; 95% CI = 12.19-61.04). However, no relationship was observed between MMP9 -1562C>T and OSA susceptibility in three genetic models (Homozygote model, OR = 1.37; 95% CI = 0.87-2.18); (Recessive model, OR = 1.42; 95% CI = 0.83-2.42); (Allele model, OR = 1.07; 95% CI = 0.96-1.18). CONCLUSIONS This systemic review and meta-analysis indicated that the level of MMP9 was increased in patients with OSA and this increase is relevant to OSA severity. Moreover, the relationship between MMP9 -1562 C>T and OSA susceptibility has currently not been proven by current merging values. Further analyses with larger sample size are required to verify these associations.
Collapse
Affiliation(s)
- Xiaolian Fang
- Department of Otolaryngology, Head and Neck Surgery, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Jun Chen
- Big Data and Engineering Research Center, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Wei Wang
- Big Data and Engineering Research Center, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Guoshuang Feng
- Big Data and Engineering Research Center, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Xiaodan Li
- Department of Otolaryngology, Head and Neck Surgery, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Xin Zhang
- Big Data and Engineering Research Center, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Yamei Zhang
- Department of Otolaryngology, Head and Neck Surgery, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Jie Zhang
- Department of Otolaryngology, Head and Neck Surgery, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Zhifei Xu
- Respiratory Department, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China
| | - Jun Tai
- Department of Otolaryngology, Head and Neck Surgery, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China.
| | - Xin Ni
- Department of Otolaryngology, Head and Neck Surgery, National Children's Medical Center/Beijing Children's Hospital, Capital Medical University, Beijing, PR China.
| |
Collapse
|
17
|
Dieltjens M, Verbraecken JA, Hedner J, Vanderveken OM, Steiropoulos P, Kvamme JA, Saaresranta T, Tkacova R, Marrone O, Dogas Z, Schiza S, Grote L, Steiropoulos P, Verbraecken J, Petiet E, Trakada G, Montserrat J, Fietze I, Penzel T, Ludka O, Rodenstein D, Masa J, Bouloukaki I, Schiza S, Kent B, McNicholas W, Ryan S, Riha R, Kvamme J, Schulz R, Grote L, Hedner J, Zou D, Pépin J, Levy P, Bailly S, Lavie L, Lavie P, Hein H, Basoglu O, Tasbakan M, Varoneckas G, Joppa P, Tkacova R, Staats R, Barbé F, Lombardi C, Parati G, Drummond M, van Zeller M, Bonsignore M, Marrone O, Escourrou P, Roisman G, Pretl M, Vitols A, Dogas Z, Galic T, Pataka A, Anttalainen U, Saaresranta T, Sliwinski P, Plywaczewski R, Bielicki P, Zielinski J. Use of the Clinical Global Impression scale in sleep apnea patients – Results from the ESADA database. Sleep Med 2019; 59:56-65. [DOI: 10.1016/j.sleep.2018.10.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 10/16/2018] [Accepted: 10/18/2018] [Indexed: 12/20/2022]
|
18
|
Biomarker panel in sleep apnea patients after an acute coronary event. Clin Biochem 2019; 68:24-29. [DOI: 10.1016/j.clinbiochem.2019.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/08/2019] [Accepted: 03/27/2019] [Indexed: 12/24/2022]
|
19
|
Franczak A, Bil-Lula I, Sawicki G, Fenton M, Ayas N, Skomro R. Matrix metalloproteinases as possible biomarkers of obstructive sleep apnea severity - A systematic review. Sleep Med Rev 2019; 46:9-16. [PMID: 31060030 DOI: 10.1016/j.smrv.2019.03.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/18/2019] [Accepted: 03/25/2019] [Indexed: 12/19/2022]
Abstract
Obstructive sleep apnea is an underdiagnosed sleep-related breathing disorder affecting millions of people. Recurrent episodes of apnea/hypopnea result in intermittent hypoxia leading to oxidative stress. Obstructive sleep apnea is considered an independent risk factor for cardiovascular disease but the exact pathophysiology of adverse cardiovascular outcomes of obstructive sleep apnea has not been fully elucidated. Matrix metalloproteinases (MMPs) have been associated with both oxidative stress and cardiovascular diseases. Hypoxic conditions were shown to influence MMP expression, secretion and activity. Moreover, matrix metalloproteinases contribute to ischemia/reperfusion injury. Therefore, action of matrix metalloproteinases can provide a possible molecular mechanism linking obstructive sleep apnea with oxidative stress and cardiovascular disease. The aim of this paper was to review the current evidence of association between matrix metalloproteinases and obstructive sleep apnea with focus on hypoxemia and severity of obstructive sleep apnea.
Collapse
Affiliation(s)
- Aleksandra Franczak
- Division of Respiratory, Critical Care and Sleep Medicine, University of Saskatchewan, Saskatoon, Canada; Department of Medical Laboratory Diagnostics, Division of Clinical Chemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Iwona Bil-Lula
- Department of Medical Laboratory Diagnostics, Division of Clinical Chemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Grzegorz Sawicki
- Department of Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, Canada; Department of Medical Laboratory Diagnostics, Division of Clinical Chemistry, Wroclaw Medical University, Wroclaw, Poland
| | - Mark Fenton
- Division of Respiratory, Critical Care and Sleep Medicine, University of Saskatchewan, Saskatoon, Canada; Canadian Sleep and Circadian Network
| | - Najib Ayas
- University of British Columbia, Vancouver, B.C. Canada; Canadian Sleep and Circadian Network
| | - Robert Skomro
- Division of Respiratory, Critical Care and Sleep Medicine, University of Saskatchewan, Saskatoon, Canada; Canadian Sleep and Circadian Network; Division of Angiology, Wroclaw Medical University, Wroclaw, Poland.
| |
Collapse
|
20
|
Lui MMS, Tse HF, Mak JCW, Lam DCL, Chan CWS, Chong PWC, Ip MSM. Untreated Obstructive Sleep Apnea Is Associated With Myocardial Injury Independent of Blood Pressure Control in Hypertension. J Clin Sleep Med 2018; 14:1841-1847. [PMID: 30373683 DOI: 10.5664/jcsm.7476] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 04/03/2018] [Indexed: 12/14/2022]
Abstract
STUDY OBJECTIVES Obstructive sleep apnea (OSA) and hypertension are independent risk factors of cardiovascular morbidities. This study aims to investigate the relationship between OSA, blood pressure (BP) control, and myocardial injury in patients with difficult-to-control hypertension. METHODS Patients with hypertension who required three or more medications were prospectively recruited at a tertiary referral center. In-laboratory polysomnography, followed by blood tests for fasting glucose, glycated hemoglobin, lipids, high-sensitivity troponin I (hsTnI), B-type natriuretic peptide (BNP), C-reactive protein, and advanced oxidation protein products were performed. After polysomnography, 24-hour ambulatory BP monitoring was arranged. RESULTS A total of 98 participants were analyzed, with mean age 51 ± 9 years and body mass index 30 ± 5 kg/m2. Previously undiagnosed severe OSA (apneahypopnea index [AHI] ≥ 30 events/h) was present in 51 patients (52%). hsTnI was negatively correlated with nocturnal dip in systolic BP (r = -.205, P = .048). After controlling for confounders, including BP control, AHI and oxygen desaturation index (ODI) were positively correlated with hsTnI (r = .282, P = .009 and r = .279, P = .010, respectively) and C-reactive protein (r = .302, P = .005 and r = .285, P = .008, respectively), but not with BNP or advanced oxidation protein products. Age, ODI, and loss of nocturnal systolic BP dip were significant determinants of hsTnI level (β = .225, P = .022; β = .293, P = .003; and β = -.215, P = .029; R2 = .151). Age, female sex, 24-hour mean diastolic BP, and metabolic syndrome, but not indices of apnea severity, were predictors of BNP level. CONCLUSIONS Unrecognized severe OSA was common in patients with difficult-to-control hypertension, and OSA severity was associated with myocardial injury, independent of BP control with medications. CLINICAL TRIAL REGISTRATION Registry: ClinicalTrials.gov, Title: A Cross-sectional Study of the Occurrence and Effect of Obstructive Sleep Apnea in Subjects With Resistant Hypertension, Identifier: NCT00843583, URL: https://clinicaltrials.gov/ct2/show/NCT00843583.
Collapse
Affiliation(s)
- Macy M S Lui
- Division of Respiratory and Critical Care Medicine, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam Road, Hong Kong
| | - H F Tse
- Division of Cardiology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam Road, Hong Kong
| | - Judith C W Mak
- Division of Respiratory and Critical Care Medicine, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam Road, Hong Kong
| | - David C L Lam
- Division of Respiratory and Critical Care Medicine, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam Road, Hong Kong
| | - Carmen W S Chan
- Division of Cardiology, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam Road, Hong Kong
| | - Peony W C Chong
- Division of Respiratory and Critical Care Medicine, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam Road, Hong Kong
| | - Mary S M Ip
- Division of Respiratory and Critical Care Medicine, Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam Road, Hong Kong
| |
Collapse
|
21
|
Kyotani Y, Itaya-Hironaka A, Yamauchi A, Sakuramoto-Tsuchida S, Makino M, Takasawa S, Yoshizumi M. Intermittent hypoxia-induced epiregulin expression by IL-6 production in human coronary artery smooth muscle cells. FEBS Open Bio 2018; 8:868-876. [PMID: 29744301 PMCID: PMC5929938 DOI: 10.1002/2211-5463.12430] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 03/16/2018] [Accepted: 04/04/2018] [Indexed: 12/13/2022] Open
Abstract
Patients with obstructive sleep apnea (OSA) experience repetitive episodes of desaturation and resaturation of blood oxygen (known as intermittent hypoxia or IH), during sleep. We showed previously that IH induced excessive proliferation of rat vascular smooth muscle cells through upregulation of members of the epidermal growth factor family, especially epiregulin (EREG), and the erbB2 receptor. In this study, we exposed human coronary artery smooth muscle cells to IH and found that IH significantly increased the expression of EREG. IH increased the production of interleukin‐6 (IL‐6) in smooth muscle cells, and the addition of IL‐6 induced EREG expression. Small interfering RNA for IL‐6 or IL‐6 receptor attenuated the IH‐induced increase in EREG. IL‐6 may play a pivotal role in EREG upregulation by IH and consequently OSA‐related atherosclerosis.
Collapse
Affiliation(s)
- Yoji Kyotani
- Department of Pharmacology Nara Medical University Kashihara Japan
| | | | - Akiyo Yamauchi
- Department of Biochemistry Nara Medical University Kashihara Japan
| | | | - Mai Makino
- Department of Biochemistry Nara Medical University Kashihara Japan
| | - Shin Takasawa
- Department of Biochemistry Nara Medical University Kashihara Japan
| | | |
Collapse
|
22
|
Impact of continuous positive airway pressure on vascular endothelial growth factor in patients with obstructive sleep apnea: a meta-analysis. Sleep Breath 2018; 23:5-12. [PMID: 29671205 DOI: 10.1007/s11325-018-1660-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 02/05/2018] [Accepted: 04/05/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE Cumulative evidence supports the clear relationship of obstructive sleep apnea (OSA) with cardiovascular disease (CVD). And, adherence to continuous positive airway pressure (CPAP) treatment alleviates the risk of CVD in subjects with OSA. Vascular endothelial growth factor (VEGF), a potent angiogenic cytokine regulated by hypoxia-inducible factor, stimulates the progression of CVD. Thus, whether treatment with CPAP can actually decrease VEGF in patients with OSA remains inconclusive. The purpose of the present study was to quantitatively evaluate the impact of CPAP therapy on VEGF levels in OSA patients. METHODS We systematically searched Web of Science, Cochrane Library, PubMed, and Embase databases that examined the impact of CPAP on VEGF levels in OSA patients prior to May 1, 2017. Related searching terms were "sleep apnea, obstructive," "sleep disordered breathing," "continuous positive airway pressure," "positive airway pressure," and "vascular endothelial growth factor." We used standardized mean difference (SMD) to analyze the summary estimates for CPAP therapy. RESULTS Six studies involving 392 patients were eligible for the meta-analysis. Meta-analysis of the pooled effect showed that levels of VEGF were significantly decreased in patients with OSA before and after CPAP treatment (SMD = - 0.440, 95% confidence interval (CI) = - 0.684 to - 0.196, z = 3.53, p = 0.000). Further, results demonstrated that differences in age, body mass index, apnea-hypopnea index, CPAP therapy duration, sample size, and racial differences also affected CPAP efficacy. CONCLUSIONS Improved endothelial function measured by VEGF may be associated with CPAP therapy in OSA patients. The use of VEGF levels may be clinically important in evaluating CVD for OSA patients. Further large-scale, well-designed long-term interventional investigations are needed to clarify this issue.
Collapse
|
23
|
Chang YS, Yee BJ, Hoyos CM, Wong KK, Sullivan DR, Grunstein RR, Phillips CL. The effects of continuous positive airway pressure therapy on Troponin-T and N-terminal pro B-type natriuretic peptide in patients with obstructive sleep apnoea: a randomised controlled trial. Sleep Med 2017; 39:8-13. [DOI: 10.1016/j.sleep.2017.08.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 07/24/2017] [Accepted: 08/05/2017] [Indexed: 11/26/2022]
|
24
|
Evaluation of Inflammatory Markers in a Large Sample of Obstructive Sleep Apnea Patients without Comorbidities. Mediators Inflamm 2017; 2017:4573756. [PMID: 28831208 PMCID: PMC5555019 DOI: 10.1155/2017/4573756] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 06/19/2017] [Accepted: 07/03/2017] [Indexed: 02/01/2023] Open
Abstract
Systemic inflammation is important in obstructive sleep apnea (OSA) pathophysiology and its comorbidity. We aimed to assess the levels of inflammatory biomarkers in a large sample of OSA patients and to investigate any correlation between these biomarkers with clinical and polysomnographic (PSG) parameters. This was a cross-sectional study in which 2983 patients who had undergone a polysomnography for OSA diagnosis were recruited. Patients with known comorbidities were excluded. Included patients (n = 1053) were grouped according to apnea-hypopnea index (AHI) as mild, moderate, and severe. Patients with AHI < 5 served as controls. Demographics, PSG data, and levels of high-sensitivity C-reactive protein (hs-CRP), fibrinogen, erythrocyte sedimentation rate (ESR), and uric acid (UA) were measured and compared between groups. A significant difference was found between groups in hs-CRP, fibrinogen, and UA. All biomarkers were independently associated with OSA severity and gender (p < 0.05). Females had increased levels of hs-CRP, fibrinogen, and ESR (p < 0.001) compared to men. In contrast, UA levels were higher in men (p < 0.001). Our results suggest that inflammatory markers significantly increase in patients with OSA without known comorbidities and correlate with OSA severity. These findings may have important implications regarding OSA diagnosis, monitoring, treatment, and prognosis. This trial is registered with ClinicalTrials.gov number NCT03070769.
Collapse
|
25
|
Abstract
PURPOSE OF REVIEW Sleep-disordered breathing (SDB) is highly prevalent in heart failure (HF) and may confer significant stress to the cardiovascular system and increases the risk for future cardiovascular events. The present review will provide updates on the current understanding of the relationship of SDB and common HF biomarkers and the effect of positive airway pressure therapy on these biomarkers, with particular emphasis in patients with coexisting SDB and HF. RECENT FINDINGS Prior studies have examined the relationship between HF biomarkers and SDB, and the effect of SDB treatment on these biomarkers, with less data available in the context of coexisting SDB and HF. Overall, however, the association of SDB and circulating biomarkers has been inconsistent. Further research is needed to elucidate the relationship between biomarkers and SDB in HF, to evaluate the clinical utility of biomarkers over standard methods in large, prospective studies and also to assess the impact of treatment of SDB on these biomarkers in HF via interventional studies.
Collapse
Affiliation(s)
- Ying Y Zhao
- Sleep Care Solutions, 1835 Yonge Street, Suite 303, Toronto, Ontario, M4S 1X8, Canada.
| | - Reena Mehra
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, USA
| |
Collapse
|
26
|
Schaefer E, Wu W, Mark C, Yang A, DiGiacomo E, Carlton‐Smith C, Salloum S, Brisac C, Lin W, Corey KE, Chung RT. Intermittent hypoxia is a proinflammatory stimulus resulting in IL-6 expression and M1 macrophage polarization. Hepatol Commun 2017; 1:326-337. [PMID: 29404462 PMCID: PMC5721395 DOI: 10.1002/hep4.1045] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/18/2017] [Accepted: 04/12/2017] [Indexed: 01/17/2023] Open
Abstract
The biological factors that promote inflammation or nonalcoholic steatohepatitis (NASH) in the setting of nonalcoholic fatty liver disease remain incompletely understood. Clinical studies have demonstrated an association between obstructive sleep apnea (OSA) and both inflammation and fibrosis in NASH, but the mechanism has not been identified. In this study, we use in vitro modeling to examine the impact of intermittent hypoxia on the liver. Hepatocyte, stellate cell, and macrophage cell lines were exposed to intermittent or sustained hypoxia. Candidate genes associated with inflammation, fibrosis, and lipogenesis were analyzed. Circulating cytokines were assessed in human serum of patients with nonalcoholic fatty liver disease. Intermittent hypoxia results in significant induction of interleukin (IL)-6 expression in both hepatocytes and macrophages. The increase in IL-6 expression was independent of hypoxia inducible factor 1 induction but appeared to be in part related to antioxidant response element and nuclear factor kappa B activation. Mature microRNA 365 (miR-365) has been demonstrated to regulate IL-6 expression, and we found that miR-365 expression was decreased in the setting of intermittent hypoxia. Furthermore, macrophage cell lines showed polarization to an M1 but not M2 phenotype. Finally, we found a trend toward higher circulating levels of IL-6 in patients with OSA and NASH. Conclusion: Intermittent hypoxia acts as a potent proinflammatory stimulus, resulting in IL-6 induction and M1 macrophage polarization. Increased IL-6 expression may be due to both induction of antioxidant response element and nuclear factor kappa B as well as inhibition of miR-365 expression. Higher levels of IL-6 were observed in human samples of patients with OSA and NASH. These findings provide biological insight into mechanisms by which obstructive sleep apnea potentiates inflammation and fibrosis in patients with fatty liver disease. (Hepatology Communications 2017;1:326-337).
Collapse
Affiliation(s)
| | - Winona Wu
- Massachusetts General HospitalGastrointestinal UnitBostonMA
| | - Christina Mark
- Massachusetts General HospitalGastrointestinal UnitBostonMA
| | - Andrew Yang
- Massachusetts General HospitalGastrointestinal UnitBostonMA
| | - Erik DiGiacomo
- Massachusetts General HospitalGastrointestinal UnitBostonMA
| | | | - Shadi Salloum
- Massachusetts General HospitalGastrointestinal UnitBostonMA
| | - Cynthia Brisac
- Massachusetts General HospitalGastrointestinal UnitBostonMA
| | - Wenyu Lin
- Massachusetts General HospitalGastrointestinal UnitBostonMA
| | | | | |
Collapse
|
27
|
Lyons MM, Bhatt NY, Kneeland-Szanto E, Keenan BT, Pechar J, Stearns B, Elkassabany NM, Memtsoudis SG, Pack AI, Gurubhagavatula I. Sleep apnea in total joint arthroplasty patients and the role for cardiac biomarkers for risk stratification: an exploration of feasibility. Biomark Med 2016; 10:265-300. [PMID: 26925513 DOI: 10.2217/bmm.16.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Obstructive sleep apnea (OSA) is highly prevalent in patients undergoing total joint arthroplasty (TJA) and is a major risk factor for postoperative cardiovascular complications and death. Recognizing this, the American Society of Anesthesiologists urges clinicians to implement special considerations in the perioperative care of OSA patients. However, as the volume of patients presenting for TJA increases, resources to implement these recommendations are limited. This necessitates mechanisms to efficiently risk stratify patients having OSA who may be susceptible to post-TJA cardiovascular complications. We explore the role of perioperative measurement of cardiac troponins (cTns) and brain natriuretic peptides (BNPs) in helping determine which OSA patients are at increased risk for post-TJA cardiovascular-related morbidity.
Collapse
Affiliation(s)
- M Melanie Lyons
- Division of Sleep Medicine, Center for Sleep & Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Biobehavioral Research, School of Nursing, University of Pennsylvania, Philadelphia, PA, USA
| | - Nitin Y Bhatt
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, The Ohio State University, Columbus, OH, USA
| | - Elizabeth Kneeland-Szanto
- Division of Sleep Medicine, Center for Sleep & Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Brendan T Keenan
- Division of Sleep Medicine, Center for Sleep & Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joanne Pechar
- Department of Penn Orthopaedics, Pennsylvania Hospital, University of Pennsylvania Health System, Philadelphia, PA, USA
| | - Branden Stearns
- Division of Sleep Medicine, Center for Sleep & Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nabil M Elkassabany
- Department of Anesthesiology & Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Stavros G Memtsoudis
- Department of Anesthesiology & Public Health, Weill Cornell Medical College & Department of Anesthesiology, Hospital for Special Surgery, New York, NY, USA
| | - Allan I Pack
- Division of Sleep Medicine, Center for Sleep & Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Indira Gurubhagavatula
- Division of Sleep Medicine, Center for Sleep & Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Sleep Medicine, CMC VA Medical Center, Philadelphia, PA, USA
| |
Collapse
|
28
|
Strehmel R, Valo M, Teupe C. Natriuretic Peptide and High-Sensitive Troponin T Concentrations Correlate with Effectiveness of Short-Term CPAP in Patients with Obstructive Sleep Apnea and Coronary Artery Disease. CLINICAL MEDICINE INSIGHTS-CIRCULATORY RESPIRATORY AND PULMONARY MEDICINE 2016; 10:33-39. [PMID: 27980444 PMCID: PMC5154737 DOI: 10.4137/ccrpm.s40939] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 11/08/2016] [Accepted: 11/20/2016] [Indexed: 11/05/2022]
Abstract
The risk of cardiovascular complications is increased in patients with obstructive sleep apnea (OSA). Continuous positive airway pressure (CPAP) is the most effective way to treat clinically significant OSA. We hypothesized that the concentrations of the cardiac risk markers N-terminal brain natriuretic peptide (NT-proBNP) and high-sensitive troponin T (hs-TropT) correlate with the effectiveness of CPAP therapy in patients with OSA and coexisting coronary artery disease (CAD). Twenty-one patients with severe OSA and coexisting CAD (group 1) and 20 control patients with severe OSA alone (group 2) were treated with CPAP and monitored by laboratory-based polysomnography. NT-proBNP and hs-TropT levels were measured before and after CPAP. Apnea-hypopnea index (AHI) and oxygen desaturation were similar in both groups. In group 1, hs-TropT levels correlated with AHI and oxygen desaturation upon CPAP. Elevated NT-proBNP levels in group 1 were significantly reduced by CPAP. NT-proBNP levels correlated with AHI and showed negative correlation with ST-segment depression. No such correlations were found in group 2. CPAP has the potential to normalize elevated NT-proBNP serum levels in patients with severe OSA and coexisting CAD. Levels of NT-proBNP and hs-TropT correlated with AHI and oxygen desaturation.
Collapse
Affiliation(s)
- Ralf Strehmel
- Department of Medicine, Center of Sleep Medicine, Krankenhaus Sachsenhausen, Frankfurt, Germany
| | - Misa Valo
- Department of Medicine, Center of Sleep Medicine, Krankenhaus Sachsenhausen, Frankfurt, Germany
| | - Claudius Teupe
- Department of Medicine, Center of Sleep Medicine, Krankenhaus Sachsenhausen, Frankfurt, Germany.; Department of Medicine - Cardiology, Krankenhaus Sachsenhausen, Frankfurt, Germany
| |
Collapse
|
29
|
Turnbull CD, Rossi VA, Santer P, Schwarz EI, Stradling JR, Petousi N, Kohler M. Effect of OSA on hypoxic and inflammatory markers during CPAP withdrawal: Further evidence from three randomized control trials. Respirology 2016; 22:793-799. [PMID: 27860068 DOI: 10.1111/resp.12946] [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: 07/20/2016] [Revised: 09/08/2016] [Accepted: 09/08/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND OBJECTIVE Obstructive sleep apnoea (OSA) is associated with cardiovascular disease. Intermittent hypoxia, endothelial dysfunction and adipose tissue-mediated inflammation have all been linked to cardiovascular disease in OSA. We therefore explored the effect of OSA on relevant associated blood markers: adrenomedullin (ADM), endocan, endothelin-1 (ET-1), resistin and vascular endothelial growth factor (VEGF). METHODS Patients with OSA, established on and compliant with continuous positive airways pressure (CPAP) therapy for >1 year were included from three randomized controlled trials, conducted at two centres. Patients were randomized to either continued therapeutic CPAP or sham CPAP (CPAP withdrawal) for 2 weeks. Blood markers were measured at baseline and at 14 days and the treatment effect between sham CPAP and therapeutic CPAP was analysed. RESULTS A total of 109 patients were studied (therapeutic CPAP n = 54, sham CPAP n = 55). Sham CPAP was associated with a return of OSA (between-group difference in oxygen desaturation index (ODI) 36.0/h, 95% CI 29.9-42.2, P < 0.001). Sham CPAP was associated with a reduction in ADM levels at 14 days (-26.0 pg/mL, 95% CI -47.8 to -4.3, P = 0.02), compared to therapeutic CPAP. Return of OSA was not associated with changes in endocan, ET-1, resistin or VEGF. CONCLUSION Whilst CPAP withdrawal was associated with return of OSA, it was associated with an unexpected significant reduction in the vasodilator ADM and not with expected increases in hypoxia-induced markers, markers of endothelial function or resistin. We propose that the vascular effects occurring in OSA may be brought about by other mechanisms, perhaps partly through a reduction in ADM.
Collapse
Affiliation(s)
- Chris D Turnbull
- Oxford Centre for Respiratory Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Valentina A Rossi
- Division of Pulmonology and Sleep Disorders Center, University Hospital of Zurich, Zurich, Switzerland
| | - Peter Santer
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK.,Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | - Esther I Schwarz
- Division of Pulmonology and Sleep Disorders Center, University Hospital of Zurich, Zurich, Switzerland
| | - John R Stradling
- Oxford Centre for Respiratory Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Nayia Petousi
- Oxford Centre for Respiratory Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Malcolm Kohler
- Division of Pulmonology and Sleep Disorders Center, University Hospital of Zurich, Zurich, Switzerland.,Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| |
Collapse
|
30
|
Maeder MT, Mueller C, Schoch OD, Ammann P, Rickli H. Biomarkers of cardiovascular stress in obstructive sleep apnea. Clin Chim Acta 2016; 460:152-63. [DOI: 10.1016/j.cca.2016.06.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 06/30/2016] [Indexed: 12/20/2022]
|
31
|
Msaad S, Marrakchi R, Grati M, Gargouri R, Kammoun S, Jammoussi K, Yangui I. How does serum brain natriuretic peptide level change under nasal continuous positive airway pressure in obstructive sleep apnea-hypopnea syndrome? Libyan J Med 2016; 11:31673. [PMID: 27581116 PMCID: PMC5007247 DOI: 10.3402/ljm.v11.31673] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Accepted: 07/22/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Obstructive sleep apnea-hypopnea syndrome (OSAHS) is associated with cardiovascular morbidity and mortality, which can be improved by using continuous positive airway pressure (CPAP) therapy. However, the pathophysiological links between the two kinds of disease and the mechanism of the CPAP effect remain incompletely understood. We aimed to inquire into the myocardial involvement in this relationship. We suggested that serum brain natriuretic peptide (BNP) is sensitive enough to detect myocardial stress caused by OSAHS. DESIGN AND METHODS Sixty-four subjects without cardiovascular disease (21 controls, 24 normotensive OSAHS patients, and 19 hypertensive OSAHS patients) were analyzed for serum BNP at baseline and serially over 6 months. CPAP was applied to 23 patients with severe OSAHS. RESULTS At baseline, the serum BNP levels were significantly higher (p=0.0001) in the OSAHS group (22.3±14.79 pg/ml) than in the control group (9.2±6.75 pg/ml). Increased serum BNP levels were significantly associated with mean transcutaneous oxygen saturation (SpO2) (p<0.0001), minimal SpO2 (p=0.002), oxygen desaturation index (p=0.001), and total sleep time spent with SpO2 lower than 90% (p=0.002). All patients with elevated BNP levels (≥37 pg/ml) had moderate or severe OSAHS (11/43 OSAHS patients). The more severe the OSAHS, the higher the BNP levels were. However, only the difference between severe and mild OSAHS was statistically significant (p=0.029). Hypertensive OSAHS patients had the highest baseline BNP levels (27.7±16.74 pg/ml). They were significantly higher (p=0.001) than in normotensive OSAHS patients (18±11.72 pg/ml) (p=0.039) and the controls (9.2±6.75 pg/ml). As compared with baseline, treatment with CPAP significantly decreased BNP levels in both hypertensive and normotensive OSAHS patients (respectively, from 36±16.10 to 29.7±14.29 pg/ml, p<0.001, and from 20±10.09 to 16±8.98 pg/ml, p<0.001). In contrast, the BNP levels slightly increased in the controls (from 9.2±6.75 to 9.5±7.02 pg/ml, p=0.029), but there was no statistically significant difference in comparison with the baseline value. The effect of CPAP on BNP levels was more marked in patients with higher baseline BNP levels and those with the most prolonged nocturnal desaturation (p=0.001, r=0.65). It was also more marked in hypertensive OSHAS patients (p=0.015, r=0.72) in comparison with normotensive OSAHS patients (p=0.03, r=0.62). CONCLUSION BNP seems to be sensitive enough to detect myocardial stress caused by OSAHS. As such, it is a potential marker for screening of preclinical cardiovascular damage in patients with untreated OSAHS. Application of CPAP decreases levels significantly in normotensive and particularly in hypertensive OSAHS. These findings are consistent with previous results suggesting the potential benefits of CPAP on cardiovascular outcome in OSAHS patients.
Collapse
Affiliation(s)
- Sameh Msaad
- Department of Respiratory and Sleep Diseases, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
- Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia;
| | - Rim Marrakchi
- Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
- Biochemistry Department, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Malek Grati
- Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
- Biochemistry Department, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Rahma Gargouri
- Department of Respiratory and Sleep Diseases, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
- Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| | - Samy Kammoun
- Department of Respiratory and Sleep Diseases, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
- Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| | - Kamel Jammoussi
- Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
- Biochemistry Department, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Ilhem Yangui
- Department of Respiratory and Sleep Diseases, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
- Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| |
Collapse
|
32
|
Sarinc Ulasli S, Sariaydin M, Ozkececi G, Gunay E, Halici B, Unlu M. Arterial stiffness in obstructive sleep apnoea: Is there a difference between daytime and night-time? Respirology 2016; 21:1480-1485. [PMID: 27381837 DOI: 10.1111/resp.12845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 04/07/2016] [Accepted: 04/07/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND OBJECTIVE Obstructive sleep apnoea syndrome (OSAS) is a common chronic systemic disease in the general population, with known associated cardiovascular outcomes. We aimed to investigate arterial stiffness in OSAS patients and compare daytime and night-time values with control subjects. METHODS A total of 104 patients undergoing investigation for OSAS with polysomnography also underwent pulse wave velocity (PWV) and augmentation index (AIx) measurements with Mobil-O-Graph for 24 h. Eighty-two patients were found to have OSAS and 22 did not have OSAS and acted as controls. RESULTS PWV values of the 82 OSAS patients during the 24-h period, both daytime and night-time, were significantly higher than that of the control subjects. Moreover, night-time levels of AIx were significantly higher in OSAS patients than control subjects (P = 0.025). PWV during night-time was higher than daytime measurements in OSAS patients (P = 0.012). Apnoea hypopnoea index (AHI) was significantly correlated with PWV and AIx over 24 h (P = 0.0001, r = 0.412; P = 0.002, r = 0.333, respectively). Positive correlations were also found between oxygen desaturation index (ODI) with PWV and AIx during the night (P = 0.0001, r = 0.480; P = 0.002, r = 0.325, respectively). However, daytime AIx was not significantly correlated with ODI (P = 0.052, r = 0.205). CONCLUSION OSAS patients, without known cardiovascular disease, have increased PWV, indicating an increased arterial stiffness, compared with control subjects and correlations between AHI and arterial stiffness indices suggest increased arterial stiffness with increased disease severity. Therefore, arterial stiffness should be considered as a possible cause for cardiovascular complications in OSAS patients.
Collapse
Affiliation(s)
- Sevinc Sarinc Ulasli
- Faculty of Medicine, Department of Pulmonary Diseases, Hacettepe University, Ankara, Turkey.
| | - Muzaffer Sariaydin
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyon, Turkey
| | - Gulay Ozkececi
- Faculty of Medicine, Department of Cardiology, Afyon Kocatepe University, Afyon, Turkey
| | - Ersin Gunay
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyon, Turkey
| | - Bilal Halici
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyon, Turkey
| | - Mehmet Unlu
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyon, Turkey
| |
Collapse
|
33
|
Zhang XB, Jiang XT, Cai FR, Zeng HQ, Du YP. Vascular endothelial growth factor levels in patients with obstructive sleep apnea: a meta-analysis. Eur Arch Otorhinolaryngol 2016; 274:661-670. [PMID: 27236786 DOI: 10.1007/s00405-016-4102-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 05/12/2016] [Indexed: 12/25/2022]
Abstract
Published articles regarding the blood levels of vascular endothelial growth factor (VEGF) in obstructive sleep apnea (OSA) patients are contradictory. The objective of this study was to explore whether VEGF levels is high or not in OSA subjects via quantitatively statistical analysis. The electronic databases of Pubmed, Web of Science, EMBASE were systematic searched. The VEGF levels and clinical characteristics of participants between OSA group and control group were extracted for analysis. Weighted mean difference (WMD) or standard mean difference (SMD) with 95 % confidence interval (CI) was calculated by fixed effects or random effects model. Appropriate statistical software was employed for data synthesis. Totaling 15 articles with 697 participants were included in this study. Pooled meta-analysis showed that blood VEGF concentrations were significantly higher in OSA patients than in control subjects (SMD 1.89, 95 % CI 0.92-2.87, p = 0.000). Subgroup analysis demonstrated that when compared with control group, OSA patients with age ≥50 years (SMD 2.54, 95 % CI 1.28-3.80, p = 0.000), apnea hypopnea index ≥30 events/h (SMD 2.47, 95 % CI 1.20-3.73, p = 0.000) had higher VEGF levels. Compared with control subjects, OSA patients had an elevated VEGF in serum (SMD 3.55, 95 % CI 1.82-5.28, p = 0.000) rather than in plasma. High blood VEGF concentrations were observed in OSA patients, particularly in the older and more serious patients.
Collapse
Affiliation(s)
- Xiao-Bin Zhang
- Department of Respiratory Medicine, Zhongshan Hospital, Xiamen University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China. .,Teaching Hospital of Fujian Medical University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China.
| | - Xing-Tang Jiang
- Department of Respiratory Medicine, Zhongshan Hospital, Xiamen University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China.,Teaching Hospital of Fujian Medical University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China
| | - Fang-Rong Cai
- Department of Respiratory Medicine, Zhongshan Hospital, Xiamen University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China.,Teaching Hospital of Fujian Medical University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China
| | - Hui-Qing Zeng
- Department of Respiratory Medicine, Zhongshan Hospital, Xiamen University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China. .,Teaching Hospital of Fujian Medical University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China.
| | - Yan-Ping Du
- Department of Respiratory Medicine, Zhongshan Hospital, Xiamen University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China.,Teaching Hospital of Fujian Medical University, No. 201, Hubin Nan Road, Siming District, Xiamen, 361004, Fujian Province, China
| |
Collapse
|
34
|
Blood biomarkers of endocrine, immune, inflammatory, and metabolic systems in obstructive sleep apnea. Clin Biochem 2016; 49:854-61. [PMID: 27184708 DOI: 10.1016/j.clinbiochem.2016.05.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 05/10/2016] [Accepted: 05/11/2016] [Indexed: 12/11/2022]
Abstract
OBJECTIVE/BACKGROUND Obstructive sleep apnea (OSA) is a common disorder, affecting over 100 million adults. Untreated OSA leads to serious health consequences and perturbations in endocrine, immune, inflammatory, and metabolic systems. Study objectives are to evaluate the association between OSA and biomarkers, and to test the hypothesis that a combination of markers may be useful in screening for OSA. PATIENTS/METHODS A multicenter trial was conducted enrolling symptomatic male patients with suspected OSA. All subjects underwent in-laboratory overnight polysomnography. A non-symptomatic control group was also obtained. Eleven biomarkers were tested: HbA1c, CRP, EPO, IL-6, uric acid, cortisol, hGH, prolactin, testosterone, DHEA (Beckman Coulter UniCel DxC 600i Synchron® Access® Clinical Systems), IGF-1. RESULTS 73 male subjects were enrolled; 26 had moderate/severe OSA. ROC curve analysis showed HbA1c, CRP, EPO, IL-6, and Uric Acid (AUCs: 0.76, 0.73, 0.65, 0.65, 0.61) were superior to the Epworth Sleepiness Scale (AUC: 0.52). Concurrent elevation of HbA1c and CRP provide even greater predictive power. A combination of elevated HbA1c, CRP, and EPO provided 0.08 increase in AUC (0.84 [0.75 - 0.94]) over individual markers (p<0.05), with high sensitivity (85%), and specificity (79%) for moderate/severe OSA. CONCLUSIONS OSA induces characteristic endocrine, immune, inflammatory, and metabolic disturbances that can be detected with blood biomarkers. These biomarkers are superior to standard screening questionnaires. Various clusters of these biomarkers have an even greater association with OSA and thus may represent physiologic signatures of the disorder that may have value in initial screening for OSA as well as for follow-up of therapy response.
Collapse
|
35
|
Mullington JM, Abbott SM, Carroll JE, Davis CJ, Dijk DJ, Dinges DF, Gehrman PR, Ginsburg GS, Gozal D, Haack M, Lim DC, Macrea M, Pack AI, Plante DT, Teske JA, Zee PC. Developing Biomarker Arrays Predicting Sleep and Circadian-Coupled Risks to Health. Sleep 2016; 39:727-36. [PMID: 26951388 DOI: 10.5665/sleep.5616] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 02/26/2016] [Indexed: 12/20/2022] Open
Affiliation(s)
| | | | - Judith E Carroll
- Cousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience & Human Behavior, UCLA, Los Angeles, CA
| | - Christopher J Davis
- Elson S. Floyd College of Medicine, Washington State University, Spokane, WA
| | - Derk-Jan Dijk
- Surrey Sleep Research Centre, University of Surrey, Guildford, UK
| | - David F Dinges
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Philip R Gehrman
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA
| | - Geoffrey S Ginsburg
- Duke Center for Applied Genomics and Precision Medicine, Duke University, Durham, NC
| | | | - Monika Haack
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston MA
| | - Diane C Lim
- Center for Sleep and Circadian Neurobiology, University of Pennsylvania, Philadelphia, PA
| | - Madalina Macrea
- Salem VAMC, Salem, VA.,University of Virginia, Charlottesville, VA
| | - Allan I Pack
- Department of Medicine, Center for Sleep and Circadian Neurobiology Translational Research Laboratories, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | | | | | | |
Collapse
|
36
|
Maeder MT, Schoch OD, Rickli H. A clinical approach to obstructive sleep apnea as a risk factor for cardiovascular disease. Vasc Health Risk Manag 2016; 12:85-103. [PMID: 27051291 PMCID: PMC4807890 DOI: 10.2147/vhrm.s74703] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Obstructive sleep apnea (OSA) is associated with cardiovascular risk factors, cardiovascular diseases, and increased mortality. Epidemiological studies have established these associations, and there are now numerous experimental and clinical studies which have provided information on the possible underlying mechanisms. Mechanistic proof-of-concept studies with surrogate endpoints have been performed to demonstrate that treatment of OSA by continuous positive airway pressure (CPAP) has the potential to reverse or at least to attenuate not only OSA but also the adverse cardiovascular effects associated with OSA. However, no randomized studies have been performed to demonstrate that treatment of OSA by CPAP improves clinical outcomes in patients with cardiovascular risk factors and/or established cardiovascular disease and concomitant OSA. In the present review, we summarize the current knowledge on the role of OSA as a potential cardiovascular risk factor, the impact of OSA on cardiac function, the role of OSA as a modifier of the course of cardiovascular diseases such as coronary artery disease, atrial fibrillation, and heart failure, and the insights from studies evaluating the impact of CPAP therapy on the cardiovascular features associated with OSA.
Collapse
Affiliation(s)
- Micha T Maeder
- Department of Cardiology, Kantonsspital St Gallen, St Gallen, Switzerland
| | - Otto D Schoch
- Department of Respiratory Medicine, Kantonsspital St Gallen, St Gallen, Switzerland
| | - Hans Rickli
- Department of Cardiology, Kantonsspital St Gallen, St Gallen, Switzerland
| |
Collapse
|
37
|
Bonanno A, Riccobono L, Bonsignore MR, Lo Bue A, Salvaggio A, Insalaco G, Marrone O. Relaxin in Obstructive Sleep Apnea: Relationship with Blood Pressure and Inflammatory Mediators. Respiration 2016; 91:56-62. [PMID: 26731435 DOI: 10.1159/000443182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 12/02/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is associated with nocturnal intermittent hypoxia, which may be responsible for increased circulating levels of vascular endothelial growth factor (VEGF) and inflammatory mediators, such as metalloproteinases (MMPs), and which contributes to the pathogenesis of systemic hypertension. Why some OSA patients remain normotensive is poorly understood. Relaxin-2, a pregnancy hormone, may sometimes circulate in men and could increase in hypoxic conditions. It exerts a vasodilatory activity and can modulate the release of molecules, such as MMPs and VEGF. OBJECTIVES The objective of this study was to explore if circulating relaxin-2 in male OSA subjects may be related to OSA severity, to circulating levels of MMPs, of their inhibitors (tissue inhibitors of metalloproteinases; TIMPs), and of VEGF, and if it may protect from hypertension. PATIENTS AND METHODS Fifty untreated male subjects with suspected OSA were recruited. After nocturnal polysomnography, a morning venous blood sample was withdrawn. Then, 24-hour ambulatory blood pressure (BP) monitoring was performed. RESULTS The respiratory disturbance index in the sample was 30.4 [interquartile range (IQR) 15.6-55.2]. Relaxin-2 was detectable in 20 subjects. These subjects did not differ in OSA severity or diurnal and nocturnal BP from subjects with undetectable relaxin-2, but they showed lower TIMP-1 (126.8 ± 29.1 vs. 156.9 ± 41.7 pg/ml, respectively; p = 0.007) and a marginally higher MMP-9/TIMP-1 molar ratio [0.58 (IQR 0.23-1.35) vs. 0.25 (IQR 0.15-0.56); p = 0.052]. CONCLUSIONS Relaxin-2 in male subjects was not related to OSA severity, but it was associated with lower TIMP-1. As it was often undetectable, even when BP values were normal, it is unlikely that it plays a role as a major factor protecting from hypertension in OSA.
Collapse
Affiliation(s)
- Anna Bonanno
- National Research Council, Institute of Biomedicine and Molecular Immunology x2018;A. Monroy', Palermo, Italy
| | | | | | | | | | | | | |
Collapse
|
38
|
Schwarz EI, Martinez-Lozano Sinues P, Bregy L, Gaisl T, Garcia Gomez D, Gaugg MT, Suter Y, Stebler N, Nussbaumer-Ochsner Y, Bloch KE, Stradling JR, Zenobi R, Kohler M. Effects of CPAP therapy withdrawal on exhaled breath pattern in obstructive sleep apnoea. Thorax 2015; 71:110-7. [DOI: 10.1136/thoraxjnl-2015-207597] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 11/16/2015] [Indexed: 11/04/2022]
|
39
|
Sanders AE, Essick GK, Beck JD, Cai J, Beaver S, Finlayson TL, Zee PC, Loredo JS, Ramos AR, Singer RH, Jimenez MC, Barnhart JM, Redline S. Periodontitis and Sleep Disordered Breathing in the Hispanic Community Health Study/Study of Latinos. Sleep 2015; 38:1195-203. [PMID: 25669183 DOI: 10.5665/sleep.4890] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 12/18/2014] [Indexed: 01/05/2023] Open
Abstract
STUDY OBJECTIVES To investigate the association between sleep disordered breathing (SDB) and severe chronic periodontitis. DESIGN Cross-sectional data analysis from the Hispanic Community Health Study/Study of Latinos. SETTING Community-based setting with probability sampling from four urban US communities. PARTICIPANTS 12,469 adults aged 18-74 y. INTERVENTIONS None. MEASUREMENTS AND RESULTS Severe chronic periodontitis was defined using the Centers for Disease Control and Prevention/American Academy of Periodontology case classification based on full-mouth periodontal assessments performed by calibrated dentists. SDB was evaluated in standardized home sleep tests, and defined as the number of apnea plus hypopnea events associated with ≥ 3% desaturation, per hour of estimated sleep. SDB was quantified using categories of the apnea-hypopnea index (AHI): 0.0 events (nonapneic); 0.1-4.9 (subclinical); 5.0-14.9 (mild); and ≥ 15 (moderate/severe). Covariates were demographic characteristics and established periodontitis risk factors. C-reactive protein was a potential explanatory variable. Using survey estimation, multivariable binary logistic regression estimated odds ratios (OR) and 95% confidence limits (CL). Following adjustment for confounding, the SDB and periodontitis relationship remained statistically significant, but was attenuated in strength and no longer dose-response. Compared with the nonapneic referent, adjusted odds of severe periodontitis were 40% higher with subclinical SDB (OR = 1.4, 95% CL: 1.0, 1.9), 60% higher with mild SDB (OR = 1.6, 95% CL: 1.1, 2.2) and 50% higher with moderate/severe SDB (OR = 1.5, 95% CL: 1.0, 2.3) demonstrating an independent association between SDB and severe periodontitis. CONCLUSIONS This study identifies a novel association between mild sleep disordered breathing and periodontitis that was most pronounced in young adults.
Collapse
Affiliation(s)
- Anne E Sanders
- Department of Dental Ecology, University of North Carolina, Chapel Hill, NC
| | - Greg K Essick
- Department of Prosthodontics, Center for Pain Research and Innovation, University of North Carolina, Chapel Hill, NC
| | - James D Beck
- Department of Dental Ecology, University of North Carolina, Chapel Hill, NC
| | - Jianwen Cai
- Department of Biostatistics, University of North Carolina, Chapel Hill, NC
| | | | - Tracy L Finlayson
- Graduate School of Public Health, San Diego State University, San Diego, CA
| | - Phyllis C Zee
- Center for Sleep and Circadian Biology, Northwestern University, Chicago, IL
| | - Jose S Loredo
- Sleep Medicine Center and VA Pulmonary Sleep Disorders laboratory, University of California San Diego School of Medicine, San Diego, CA
| | - Alberto R Ramos
- Sleep Medicine Center and VA Pulmonary Sleep Disorders laboratory, University of California San Diego School of Medicine, San Diego, CA
| | - Richard H Singer
- Department of Neurology, University of Miami, Miller School of Medicine, Miami, FL
| | - Monik C Jimenez
- Department of Public Health Sciences, University of Miami, Miller School of Medicine, Miami, FL and Brigham and Women's Hospital Harvard Medical School, Boston, MA
| | - Janice M Barnhart
- Albert Einstein College of Medicine of Yeshiva University, Bronx, NY
| | - Susan Redline
- Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| |
Collapse
|
40
|
Sarinc Ulasli S, Sarıaydın M, Gunay E, Halici B, Celik S, Koyuncu T, Ulu S, Unlu M. Effects of nondipping pattern on systemic inflammation in obstructive sleep apnea. Sleep Breath 2015; 19:1185-90. [PMID: 25724552 DOI: 10.1007/s11325-015-1135-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 01/23/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND Obstructive sleep apnea syndrome (OSAS) is a highly prevalent chronic systemic disease in the general population with high morbidity and mortality. Nondipping pattern-failure to drop blood pressure levels in nighttime-is also seen in OSAS patients. We aim to investigate dipping and nondipping patterns of OSAS patients and to compare inflammatory markers. MATERIALS AND METHODS Patients with the confirmed diagnosis of OSAS with polysomnography underwent ambulatory blood pressure monitoring. During monitoring, patients with decreased nighttime mean systolic blood pressures 10 % or more were defined as dippers, and the patients without this amount of decrease were defined as nondippers. Peripheral venous blood samples were collected for the analysis of IL-2, IL-6, IL-8, IL-10, IL-12, and TNF-α. Results were compared with convenient statistical tests. RESULTS According to monitoring results, 34 of 62 OSAS patients were dipper and 28 of 62 patients were nondipper. Demographic characteristics, OSAS severity, and Apnea Hypopnea Index were similar in both groups. When inflammatory markers were compared between two groups, IL-2 levels were found to be significantly different (p = 0.014). CONCLUSION In conclusion, nondipping pattern appears to be associated with increased serum IL-2 levels indicating the increased inflammatory response independently from OSAS severity, and this pattern should be evaluated carefully for possible cardiovascular complications.
Collapse
Affiliation(s)
- Sevinc Sarinc Ulasli
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyonkarahisar, Afyon, Turkey.
| | - Muzaffer Sarıaydın
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyonkarahisar, Afyon, Turkey
| | - Ersin Gunay
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyonkarahisar, Afyon, Turkey
| | - Bilal Halici
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyonkarahisar, Afyon, Turkey
| | - Sefa Celik
- Faculty of Medicine, Department of Biochemistry, Afyon Kocatepe University, Afyonkarahisar, Afyon, Turkey
| | - Tulay Koyuncu
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyonkarahisar, Afyon, Turkey
| | - Sena Ulu
- Faculty of Medicine, Department of Internal Medicine, Afyon Kocatepe University, Afyonkarahisar, Afyon, Turkey
| | - Mehmet Unlu
- Faculty of Medicine, Department of Pulmonary Diseases, Afyon Kocatepe University, Afyonkarahisar, Afyon, Turkey
| |
Collapse
|
41
|
Biomarkers to improve diagnosis and monitoring of obstructive sleep apnea syndrome: current status and future perspectives. Pulm Med 2014; 2014:930535. [PMID: 25538852 PMCID: PMC4265695 DOI: 10.1155/2014/930535] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 10/23/2014] [Indexed: 02/06/2023] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) is characterized by recurrent episodes of upper airway collapse associated with oxygen desaturation and sleep disruption. It is proposed that these periodic changes lead to molecular variations that can be detected by assessing serum biomarkers. Studies have identified inflammatory, oxidative, and metabolic perturbations attributable to sleep-disordered breathing. Given that OSAS is associated with increased cardiovascular and cerebrovascular morbidity, the ideal biomarker should enable timely recognition with the possibility of intervention. There is accumulating data on the utility of serum biomarkers for the evaluation of disease severity, prognosis, and response to treatment. However, current knowledge is limited by data collection techniques, disease complexity, and potential confounding factors. The current paper reviews the literature on the use of serum biomarkers in OSAS. It is concluded that the ideal serum biomarker still needs to be discovered, while caution is needed in the interpretation of hitherto available results.
Collapse
|