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Zhang F, Huang X, Wang H, Bai Y, Huang L, Li Y, Zhong Y. Prevalence of obstructive sleep apnea in whole spectrum chronic kidney disease patients: A systematic review and meta-analysis. Sleep Med 2024; 119:526-534. [PMID: 38805860 DOI: 10.1016/j.sleep.2024.05.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/14/2024] [Accepted: 05/23/2024] [Indexed: 05/30/2024]
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is a common sleep disorder among chronic kidney disease (CKD) patients, associated with considerable morbidity. Various studies from around the globe have reported different prevalence rates. OBJECTIVE This systematic review and meta-analysis aimed to determine the prevalence of OSA and quantify the relationship between OSA and mortality risk in patients with CKD. METHODS Four databases were systematically searched, and additional references to relevant articles were manually searched. The prevalence of OSA and the mortality risk based on random-effects models were assessed using percentages and hazard ratio (HR) with a 95 % confidence interval (95 % CI). In addition, the heterogeneity between studies was assessed using I2 statistics. RESULTS A total of 44 literature (47 studies with 223,967 participants) met the eligibility criteria for the meta-analysis. The results showed that the prevalence of OSA in CKD patients was reported to be 39.3 % (95 % CI, 32.3-46.7). Among study participants in different age groups, the highest prevalence of OSA was found in CKD respondents aged 60 years or older, at 47.1 % (95 % CI 34.4-60.3). Of the eight literature (10 cohorts) that provided survival data, the pooled estimates indicated a 26.5 % (HR: 1.265; 95 % CI 1.021-1.568) higher mortality risk in subjects with OSA than CKD patients without OSA. CONCLUSIONS This systematic review and meta-analysis found that more than 1/3 of CKD patients have comorbid OSA, which increases the risk of early death in CKD patients. These results should help policymakers to provide adequate healthcare for this population. PROSPERO REGISTRATION ID CRD42023465497.
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Affiliation(s)
- Fan Zhang
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaowei Huang
- Department of Oncology, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hui Wang
- Department of Anorectal, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yan Bai
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Liuyan Huang
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Li
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Yifei Zhong
- Department of Nephrology A, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Liu F, Wang H, Bai B, Yin H, Liu Y, Wang Y, Liu Q, Wang S, Ma H, Geng Q. Obstructive Sleep Apnea as a Key Contributor to Mental Stress-Induced Myocardial Ischemia in Female Angina Patients with No Obstructive Coronary Artery Disease. Nat Sci Sleep 2024; 16:823-832. [PMID: 38911317 PMCID: PMC11192149 DOI: 10.2147/nss.s445219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 06/05/2024] [Indexed: 06/25/2024] Open
Abstract
Purpose Mental stress induced myocardial ischemia (MSIMI) is regarded as the primary cause of the angina with no obstructive coronary artery disease (ANOCA). Obstructive sleep apnea (OSA) is autonomously linked to obstructive coronary heart disease, hypertension, and sudden cardiac death. Similar to the impact of psychological stress on the cardiovascular system, individuals with OSA experience periodic nocturnal hypoxia, resulting in the activation of systemic inflammation, oxidative stress, endothelial dysfunction, and sympathetic hyperactivity. The contribution of OSA to MSIMI in ANOCA patients is unclear. To explore the prevalence of OSA in ANOCA patients and the correlation between OSA and MSIMI, a prospective cohort of female ANOCA patients was recruited. Patients and Methods We recruited female patients aged 18 to 75 years old with ANOCA and evaluated MSIMI using positron emission tomography-computed tomography. Subsequently, Level III portable monitors was performed to compare the relationship between OSA and MSIMI. Results There is higher REI (7.8 vs 2.6, P=0.019), ODI (4.7 vs 9.2, P=0.028) and percentage of OSA (67.74% vs 33.33%, P=0.004) in MSIMI patients. The patients diagnosed with OSA demonstrated higher myocardial perfusion imaging scores (SSS: 1.5 vs 3, P = 0.005, SDS: 1 vs 3, P = 0.007). Adjusted covariates, the risk of developing MSIMI remained 3.6 times higher in OSA patients (β=1.226, OR = 3.408 (1.200-9.681), P = 0.021). Conclusion Patients with MSIMI exhibit a greater prevalence of OSA. Furthermore, the myocardial blood flow perfusion in patients with OSA is reduced during mental stress.
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Affiliation(s)
- Fengyao Liu
- School of Medicine, South China University of Technology, Guangzhou, People’s Republic of China
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
| | - Haochen Wang
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
| | - Bingqing Bai
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, People’s Republic of China
| | - Han Yin
- Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University, the First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, People’s Republic of China
| | - Yuting Liu
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
| | - Yu Wang
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
| | - Quanjun Liu
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
| | - Shuxia Wang
- Department of Nuclear Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
| | - Huan Ma
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
| | - Qingshan Geng
- School of Medicine, South China University of Technology, Guangzhou, People’s Republic of China
- Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People’s Republic of China
- Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University, the First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, People’s Republic of China
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Na M, Shetty SS, Niu X, Hinkle SN, Zhang C, Gao X. Sleep duration, napping behaviors and restless legs syndrome during pregnancy and the trajectories of ultrasonographic measures of fetal growth: Findings from the NICHD Fetal Growth Studies-Singletons. Sleep Health 2024:S2352-7218(24)00087-1. [PMID: 38862351 DOI: 10.1016/j.sleh.2024.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 04/15/2024] [Accepted: 04/18/2024] [Indexed: 06/13/2024]
Abstract
OBJECTIVES Given the plausible mechanisms and the lacking of empirical evidence, the study aims to investigate how gestational sleep behaviors and the development of sleep disorders, such as restless legs syndrome, influence ultrasonographic measures of fetal growth. METHODS The study included 2457 pregnant women from the NICHD Fetal Growth Studies - Singletons (2009-2013), who were recruited between 8-13 gestational weeks and followed up to five times during pregnancy. Women were categorized into six groups based on their total sleep hours and napping frequency. The trajectory of estimated fetal weight from 10-40weeks was derived from three ultrasonographic measures. Linear mixed effect models were applied to model the estimated fetal weight in relation to self-reported sleep-napping behaviors and restless legs syndrome status, adjusting for age, race and ethnicity, education, parity, prepregnancy body mass index category, infant sex, and prepregnancy sleep-napping behavior. RESULTS From enrollment to near delivery, pregnant women's total sleep duration and nap frequency declined and restless legs syndrome symptoms frequency increased generally. No significant differences in estimated fetal weight were observed by sleep-napping group or by restless legs syndrome status. Results remained similar in sensitivity analyses and stratified analyses by women's prepregnancy body mass index category (normal vs. overweight/obese) or by infant sex. CONCLUSIONS Our data indicate that there is no association between sleep during pregnancy-assessed as total sleep duration and napping frequency, nor restless legs syndrome symptoms-and fetal growth from weeks 10 to 40 in healthy pregnant women.
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Affiliation(s)
- Muzi Na
- Department of Nutritional Sciences, College of Health and Human Development, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Samidha Sudhakar Shetty
- Department of Mathematical Sciences, College of Letters and Science, Montana State University, Bozeman, Montana, USA
| | - Xiaoyue Niu
- Department of Statistics, Eberly College of Science, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Stefanie N Hinkle
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Cuilin Zhang
- Global Center for Asian Women's Health (GloW) and Bia-Echo Asia Centre for Reproductive Longevity and Equality (ACRLE), National University of Singapore, Singapore, Singapore; Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
| | - Xiang Gao
- Department of Nutrition and Food Hygiene, School of Public Health, Institute of Nutrition, Fudan University, Shanghai, China.
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Chen Z, Wang G, Wang W, Wang X, Huang Y, Jia J, Gao Q, Xu H, He L, Xu Y, Liu Z, Sun J, Li C. Relationship between jejunum ATPase activity and antioxidant function on the growth performance, feed conversion efficiency, and jejunum microbiota in Hu sheep (Ovis aries). BMC Vet Res 2024; 20:242. [PMID: 38831422 PMCID: PMC11149274 DOI: 10.1186/s12917-024-04100-0] [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: 01/27/2024] [Accepted: 05/27/2024] [Indexed: 06/05/2024] Open
Abstract
BACKGROUND ATPase activity and the antioxidant function of intestinal tissue can reflect intestinal cell metabolic activity and oxidative damage, which might be related to intestinal function. However, the specific influence of intestinal ATPase activity and antioxidant function on growth performance, feed conversion efficiency, and the intestinal microbiota in sheep remains unclear. RESULTS This study analyzed the correlation between ATPase activity and antioxidant function in the jejunum of 92 Hu sheep and their growth performance and feed conversion efficiency. Additionally, individuals with the highest (H group) and lowest (L group) jejunum MDA content and Na+ K+-ATPase activity were further screened, and the effects of jejunum ATPase activity and MDA content on the morphology and microbial community of sheep intestines were analyzed. There was a significant correlation between jejunum ATPase and SOD activity and the initial weight of Hu sheep (P < 0.01). The H-MDA group exhibited significantly higher average daily gain (ADG) from 0 to 80 days old and higher body weight (BW) after 80 days. ATPase and SOD activities, and MDA levels correlated significantly and positively with heart weight. The jejunum crypt depth and circular muscle thickness in the H-ATP group were significantly higher than in the L-ATP group, and the villus length, crypt depth, and longitudinal muscle thickness in the H-MDA group were significantly higher than in the L-MDA group (P < 0.01). High ATPase activity and MDA content significantly reduced the jejunum microbial diversity, as indicated by the Chao1 index and observed species, and affected the relative abundance of specific taxa. Among species, the relative abundance of Olsenella umbonata was significantly higher in the H-MDA group than in the L-MDA group (P < 0.05), while Methanobrevibacter ruminantium abundance was significantly lower than in the L-MDA group (P < 0.05). In vitro culture experiments confirmed that MDA promoted the proliferation of Olsenella umbonata. Thus, ATPase and SOD activities in the jejunum tissues of Hu sheep are predominantly influenced by congenital factors, and lambs with higher birth weights exhibit lower Na+ K+-ATPase, Ca2+ Mg2+-ATPase, and SOD activities. CONCLUSIONS The ATPase activity and antioxidant performance of intestinal tissue are closely related to growth performance, heart development, and intestinal tissue morphology. High ATPase activity and MDA content reduced the microbial diversity of intestinal tissue and affect the relative abundance of specific taxa, representing a potential interaction between the host and its intestinal microbiota.
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Affiliation(s)
- Zhanyu Chen
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Guoxiu Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Weimin Wang
- The State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, 730020, China
| | - Xiaojuan Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Yongliang Huang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Jiale Jia
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Qihao Gao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Haoyu Xu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Lijuan He
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Yunfei Xu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Zhen Liu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Jinlin Sun
- Gansu Runmu Bio-Engineering Co.,LTD, Yongchang, Gansu, 737200, China
| | - Chong Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China.
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Howarth TP, Sillanmäki S, Karhu T, Rissanen M, Islind AS, Hrubos-Strøm H, de Chazal P, Huovila J, Kainulainen S, Leppänen T. Nocturnal oxygen resaturation parameters are associated with cardiorespiratory comorbidities. Sleep Med 2024; 118:101-112. [PMID: 38657349 DOI: 10.1016/j.sleep.2024.03.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/12/2024] [Accepted: 03/30/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND There are strong associations between oxygen desaturations and cardiovascular outcomes. Additionally, oxygen resaturation rates are linked to excessive daytime sleepiness independent of oxygen desaturation severity. No studies have yet looked at the independent effects of comorbidities or medications on resaturation parameters. METHODS The Sleep Heart Health Study data was utilised to derive oxygen saturation parameters from 5804 participants. Participants with a history of comorbidities or medication usage were compared against healthy participants with no comorbidity/medication history. RESULTS 4293 participants (50.4% female, median age 64 years) were included in the analysis. Females recorded significantly faster resaturation rates (mean 0.61%/s) than males (mean 0.57%/s, p < 0.001), regardless of comorbidities. After adjusting for demographics, sleep parameters, and desaturation parameters, resaturation rate was reduced with hypertension (-0.09 (95% CI -0.16, -0.03)), myocardial infarction (-0.13 (95% CI -0.21, -0.04)) and heart failure (-0.19 (95% CI -0.33, -0.05)), or when using anti-hypertensives (-0.10 (95% CI -0.17, -0.03)), mental health medications (-0.18 (95% CI -0.27, -0.08)) or anticoagulants (-0.41 (95% CI -0.56, -0.26)). Desaturation to Resaturation ratio for duration was decreased with mental health (-0.21 (95% CI -0.34, -0.08)) or diabetic medications (-0.24 (95% CI -0.41, -0.07)), and desaturation to resaturation ratio for area decreased with heart failure (-0.25 (95% CI -0.42, -0.08)). CONCLUSIONS Comorbidities and medications significantly affect nocturnal resaturation parameters, independent of desaturation parameters. However, the causal relationship remains unclear. Further research can enhance our knowledge and develop more precise and safer interventions for individuals affected by certain comorbidities.
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Affiliation(s)
- Timothy P Howarth
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Darwin Respiratory and Sleep Health, Darwin Private Hospital, Darwin, Australia; College of Health and Human Sciences, Charles Darwin University, Darwin, Australia; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
| | - Saara Sillanmäki
- Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland; Faculty of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Tuomas Karhu
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland
| | - Marika Rissanen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Department of Clinical Neurophysiology, Seinäjoki Central Hospital, Seinäjoki, Finland
| | | | - Harald Hrubos-Strøm
- Department of Otorhinolaryngology, Akershus University Hospital, Lørenskog, Norway; Clinic for Surgical Research, Campus Ahus, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Philip de Chazal
- School of Biomedical Engineering, The University of Sydney, Sydney, Australia
| | - Juuso Huovila
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland
| | - Samu Kainulainen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland
| | - Timo Leppänen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland; School of Electrical Engineering and Computer Science, The University of Queensland, Brisbane, Australia
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Vrooman OPJ, van Kerrebroeck PEV, van Balken MR, van Koeveringe GA, Rahnama'i MS. Nocturia and obstructive sleep apnoea. Nat Rev Urol 2024:10.1038/s41585-024-00887-7. [PMID: 38783115 DOI: 10.1038/s41585-024-00887-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2024] [Indexed: 05/25/2024]
Abstract
Nocturia, the need to urinate at night, is a common symptom in patients with obstructive sleep apnoea (OSA). Continuous positive airway pressure treatment can reduce nocturia in some patients, but the underlying mechanisms are complex and not fully understood. OSA affects the autonomic nervous system, oxidative stress and endothelial damage. Furthermore, the commonly held theory attributing polyuria to a false signal of cardiac overload and response natriuresis has limitations. A comprehensive approach to the management of nocturia in OSA, considering factors such as comorbidities, medication use, alcohol consumption and lifestyle, is needed. Effective management of nocturia in OSA requires a multidisciplinary approach, and urologists should be aware of the potential effect of OSA on physiology and refer patients for further testing at a sleep centre. In addition to continuous positive airway pressure, other interventions such as oral appliances and surgical obstruction treatment could be beneficial for some patients. Overall, understanding the complex interplay between OSA and nocturia is crucial for optimizing patient outcomes.
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Affiliation(s)
- Olaf P J Vrooman
- Department of Urology, Hospital Rijnstate Arnhem, Arnhem, Netherlands.
| | | | | | | | - Mohammad S Rahnama'i
- Department of Urology Nij Smellinghe Hospital, Drachten, Netherlands
- Society of Urological research and education (SURE), Maastricht, Netherlands
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Lavie P. My voyage in the enchanted world of sleep. SLEEP ADVANCES : A JOURNAL OF THE SLEEP RESEARCH SOCIETY 2024; 5:zpae027. [PMID: 38765778 PMCID: PMC11100432 DOI: 10.1093/sleepadvances/zpae027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/06/2024] [Indexed: 05/22/2024]
Abstract
In this paper, I describe my 45-year career in sleep research. I started my undergraduate studies at Tel Aviv University, where I was first introduced to the enchanted world of sleep, continued to my graduate studies with Wilse B. Webb at the University of Florida, and then to post-doctoral training with Dan Kripke at the University of California at San Diego. Then, I describe the evolution of my academic career at the Technion-Israel Institute of Technology, where I started in 1975 as an Assistant Professor and retired in 2019 as the President of the Institute. I describe the areas of research that I pursued and how the research developed, emphasizing unexpected results that guided me and my lab team in new directions. This includes my early studies on ultradian rhythms, inspired by Nathaniel Kleitman's Basic Rest Activity Cyle hypothesis, utilizing the ultrashort sleep-wake paradigm to chart the 24-hour sleep propensity function, and how these studies led us to explore the role of melatonin in sleep regulation. I also explain why we directed our attention to sleep apnea, and how clinical observations led to the provocative hypothesis that sleep apnea-typically seen as a disorder-may also play a protective role. Under the leadership of my research partner and wife, Lena, we confirmed this hypothesis. Also in this article, I describe my enthusiasm for the history of our field and, as derived from my experience as a Dean of Medicine and President of a university, I share my philosophy about the role of members of academia in society. I emphasize that none of my achievements could have been accomplished without the hard work and motivation of my students and research partners, who shared my enthusiasm and passion for the enchanted world of sleep. This paper is part of the Living Legends in Sleep Research series, which is sponsored by Idorsia Pharmaceuticals and Jazz Pharmaceuticals.
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Affiliation(s)
- Peretz Lavie
- Ruth and Bruce Rappaport Faculty of Medicine, Technion – Israel Institute of Technology, Haifa, Israel
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Boppana TK, Mittal S, Madan K, Tiwari P, Mohan A, Hadda V. Antioxidant therapies for obstructive sleep apnea: A systematic review and meta-analysis. Sleep Breath 2024:10.1007/s11325-024-03050-z. [PMID: 38740632 DOI: 10.1007/s11325-024-03050-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 04/28/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024]
Abstract
PURPOSE Obstructive sleep apnea (OSA) is a common clinical problem that is associated with adverse cardiovascular outcomes attributed to the oxidative stress due to sympathetic overstimulation. Treatment approaches targeting oxidative stress have been tried by multiple investigators. This systematic review and meta-analysis evaluated the efficacy and safety of such approaches. METHODS Pubmed and Embase databases were searched for human studies evaluating the utility of antioxidant therapies in patients with OSA. RESULTS A total of six studies (five randomized trials and one case-control study) were included, including 160 patients with OSA using N-acetyl cysteine, vitamin C, carbocysteine, superoxide dismutase, vitamin E, allopurinol, and their combinations. There was a significant improvement in flow-mediated dilatation (FMD) following antioxidants, with the pooled effect being 2.16 % (95% CI 1.65-2.67) using the random-effects model (I2 = 0% and p<0.001). It was also associated with a significant reduction in malondialdehyde levels and an increase in reduced glutathione (GSH) levels. There was also a significant improvement in the Epworth sleepiness scale, oxygen desaturation index, and minimum oxygen saturation during sleep without any significant adverse effects. CONCLUSION Antioxidant therapy in patients with OSA is associated with improved endothelial function, reduced oxidative stress, and improved sleep parameters. These results call for future multicentre studies with longer follow-ups to assess the utility of antioxidant therapy in patients with OSA.
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Affiliation(s)
- Tarun Krishna Boppana
- Department of Pulmonary, Critical Care, and Sleep Medicine, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi, India, 110029
| | - Saurabh Mittal
- Department of Pulmonary, Critical Care, and Sleep Medicine, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi, India, 110029.
| | - Karan Madan
- Department of Pulmonary, Critical Care, and Sleep Medicine, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi, India, 110029
| | - Pawan Tiwari
- Department of Pulmonary, Critical Care, and Sleep Medicine, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi, India, 110029
| | - Anant Mohan
- Department of Pulmonary, Critical Care, and Sleep Medicine, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi, India, 110029
| | - Vijay Hadda
- Department of Pulmonary, Critical Care, and Sleep Medicine, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi, India, 110029
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9
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Pan Q, Li H, Gan X, Chen X, Liu X, Li J. Correlation between cognitive impairment and serum markers in patients with obstructive sleep apnea-hypopnea syndrome. Sleep Breath 2024; 28:683-690. [PMID: 37917283 DOI: 10.1007/s11325-023-02942-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 10/05/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND Previous studies have revealed that sleep structure and hypoxemia are two important environmental factors for cognitive impairment in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). We hypothesized that the pathophysiological mechanisms between these two factors may also be involved in cognitive impairment in patients with OSAHS. Previous studies have suggested that alterations in serum glucose and lipid metabolism, inflammatory responses, and astrocyte markers not only contribute to sleep structural disorders in OSAHS but also affect the occurrence and development of this disease. Therefore, we hypothesized that alterations in the abovementioned indicators may be involved in cognitive impairment in OSAHS. Additionally, obesity is an important risk factor for OSAHS. This study therefore aimed to explore the correlation between serum indicators and cognitive impairment in patients with OSAHS. METHODS Patients with OSAHS who underwent polysomnography in our hospital were recruited in this study. The overall cognitive function of patients were evaluated using the Mini mental State Examination (MMSE). Blood biochemical indicators such as glucose (GLU), triglycerides (TG), and triglyceride glucose (TyG) index were measured. Enzyme-linked immunosorbent assay (ELISA) was used to determine the levels of serum glucagon-like peptide-1 receptor (GLP-1R), fibroblast growth factor 21 (FGF21), S100 calcium binding protein B (S100B), brain derived neurotrophic factor (BDNF), inflammatory factors such as C-reactive protein (CRP), tumor necrosis factor-α (TNFα), interleukin-4 (IL-4), interleukin-1β (IL-1β), and interleukin-6 (IL-6). Spearman correlation analysis was used to determine if the indicator was related to cognitive function, and backward linear regression analysis was used to identify the main risk factors for cognitive impairment in non-obese and obese patients with OSAHS. RESULTS Among 34 patients, 19 were non-obese and 15 were obese. Obese patients exhibited higher AHI compared to non-obese individuals, and the difference was statistically significant (p < 0.05). In non-obese patients, Spearman correlation analysis revealed a negative correlation between serum GLU, IL-4, and MMSE scores (p < 0.05); IL-6 was positively correlated with MMSE (p < 0.05). In addition, GLU and IL-6 were independently correlated with MMSE in non-obese patients (p < 0.05). In obese patients, serum TG and TyG were positively correlated with MMSE scores (p < 0.05); age, BMI, and IL-4 were negatively correlated with MMSE scores (p < 0.05). In addition, age and IL-4 were independently correlated with MMSE in obese patients (p < 0.05). CONCLUSIONS Our data suggested that GLU and IL-6 were independently correlated with cognitive impairment in non-obese patients with OSAHS; age and IL-4 were independently correlated with cognitive impairment in obese patients. Early detection of this difference in heterogeneity may provide theoretical support for future investigations in prevention and treatment of cognitive impairment in patients with OSAHS.
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Affiliation(s)
- Qiyuan Pan
- Department of Neurology, The First People's Hospital of Zaoyang City, Zaoyang, 441200, Hubei Province, China
| | - Hanqing Li
- Department of Stomatology, The First People's Hospital of Zaoyang City, Zaoyang, 441200, Hubei Province, China
| | - Xieyu Gan
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Xin Chen
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Xirui Liu
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Jinfang Li
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China.
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10
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Bilgin Topçuoğlu Ö, Çetintaş Afşar G, Alibaş H, Uluç K. Impact of obstructive sleep apnea on neuromuscular transmission- a descriptive study. Cranio 2024; 42:292-297. [PMID: 34228607 DOI: 10.1080/08869634.2021.1952016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objective: Obstructive sleep apnea (OSA) is a sleep disorder accompanied by intermittent hypoxia. Neuromuscular transmission (NT) is known to be disturbed under chronic hypoxia. In this descriptive study, it has been aimed to test NT under intermittent hypoxia in OSA. Methods: Thirty-nine newly diagnosed OSA patients without any comorbidities or conditions that alter NT were included in the study. Jitter analysis was performed using a concentric needle electrode. Results: The mean jitter value of 39 OSA patients was 25.9 ± 3.7 μs. When compared to the mean reference jitter values, patients in the present study had significantly higher jitter (p < 0.001). Seven (17.9%) patients met the electrophysiological criteria for NT failure. Conclusion: The authors propose that intermittent hypoxia can be the trigger for NT failure in OSA. The interaction between increased oxidative stress and disturbed mitochondrial functions may also contribute.
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Affiliation(s)
| | - Gülgün Çetintaş Afşar
- Department of Chest Diseases, Sureyyapasa Chest Diseases and Thorax Surgery Training and Research Hospital, Istanbul, Turkey
| | - Hande Alibaş
- Department of Neurology, Marmara University, Medical School, Istanbul, Turkey
| | - Kayıhan Uluç
- Department of Neurology, Marmara University, Medical School, Istanbul, Turkey
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11
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Tan B, Tamanyan K, Walter L, Nixon GM, Davey MJ, Ditchfield M, Horne RSC. Cortical grey matter changes, behavior and cognition in children with sleep disordered breathing. J Sleep Res 2024; 33:e14006. [PMID: 37475108 DOI: 10.1111/jsr.14006] [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: 04/16/2023] [Revised: 06/25/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023]
Abstract
This paper investigated cortical thickness and volumetric changes in children to better understand the impact of obstructive sleep disordered breathing (SDB) on the neurodevelopment of specific regions of the brain. We also aimed to investigate how these changes were related to the behavioral and cognitive deficits observed in the condition. Neuroimaging, behavioral, and sleep data were obtained from 30 children (15 non-snoring controls, 15 referred for assessment of SDB) aged 7 to 17 years. Gyral-based regions of interest were identified using the Desikan-Killiany atlas. Student's t-tests were used to compare regions of interest between the controls and SDB groups. We found that the cortical thickness was significantly greater in the right caudal anterior cingulate and right cuneus regions and there were volumetric increases in the left caudal middle frontal, bilateral rostral anterior cingulate, left, right, and bilateral caudate brain regions in children with SDB compared with controls. Neither cortical thickness nor volumetric changes were associated with behavioral or cognitive measures. The findings of this study indicate disruptions to neural developmental processes occurring in structural regions of the brain; however, these changes appear unrelated to behavioural or cognitive outcomes.
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Affiliation(s)
- Brendan Tan
- Department of Pediatrics, Monash University, Melbourne, Victoria, Australia
| | - Knarik Tamanyan
- Department of Pediatrics, Monash University, Melbourne, Victoria, Australia
| | - Lisa Walter
- Department of Pediatrics, Monash University, Melbourne, Victoria, Australia
| | - Gillian M Nixon
- Department of Pediatrics, Monash University, Melbourne, Victoria, Australia
- Melbourne Children's Sleep Centre, Monash Children's Hospital, Melbourne, Victoria, Australia
| | - Margot J Davey
- Department of Pediatrics, Monash University, Melbourne, Victoria, Australia
- Melbourne Children's Sleep Centre, Monash Children's Hospital, Melbourne, Victoria, Australia
| | - Michael Ditchfield
- Department of Pediatrics, Monash University, Melbourne, Victoria, Australia
- Department of Radiology, Monash Children's Hospital, Melbourne, Victoria, Australia
| | - Rosemary S C Horne
- Department of Pediatrics, Monash University, Melbourne, Victoria, Australia
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12
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Lavalle S, Masiello E, Iannella G, Magliulo G, Pace A, Lechien JR, Calvo-Henriquez C, Cocuzza S, Parisi FM, Favier V, Bahgat AY, Cammaroto G, La Via L, Gagliano C, Caranti A, Vicini C, Maniaci A. Unraveling the Complexities of Oxidative Stress and Inflammation Biomarkers in Obstructive Sleep Apnea Syndrome: A Comprehensive Review. Life (Basel) 2024; 14:425. [PMID: 38672697 PMCID: PMC11050908 DOI: 10.3390/life14040425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/03/2024] [Accepted: 03/18/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Obstructive sleep apnea syndrome (OSAS), affecting approximately 1 billion adults globally, is characterized by recurrent airway obstruction during sleep, leading to oxygen desaturation, elevated carbon dioxide levels, and disrupted sleep architecture. OSAS significantly impacts quality of life and is associated with increased morbidity and mortality, particularly in the cardiovascular and cognitive domains. The cyclic pattern of intermittent hypoxia in OSAS triggers oxidative stress, contributing to cellular damage. This review explores the intricate relationship between OSAS and oxidative stress, shedding light on molecular mechanisms and potential therapeutic interventions. METHODS A comprehensive review spanning from 2000 to 2023 was conducted using the PubMed, Cochrane, and EMBASE databases. Inclusion criteria encompassed English articles focusing on adults or animals and reporting values for oxidative stress and inflammation biomarkers. RESULTS The review delineates the imbalance between pro-inflammatory and anti-inflammatory factors in OSAS, leading to heightened oxidative stress. Reactive oxygen species biomarkers, nitric oxide, inflammatory cytokines, endothelial dysfunction, and antioxidant defense mechanisms are explored in the context of OSAS. OSAS-related complications include cardiovascular disorders, neurological impairments, metabolic dysfunction, and a potential link to cancer. This review emphasizes the potential of antioxidant therapy as a complementary treatment strategy. CONCLUSIONS Understanding the molecular intricacies of oxidative stress in OSAS is crucial for developing targeted therapeutic interventions. The comprehensive analysis of biomarkers provides insights into the complex interplay between OSAS and systemic complications, offering avenues for future research and therapeutic advancements in this multifaceted sleep disorder.
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Affiliation(s)
- Salvatore Lavalle
- Faculty of Medicine and Surgery, University of Enna Kore, 94100 Enna, Italy; (S.L.); (C.G.)
| | - Edoardo Masiello
- Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, Italy;
| | - Giannicola Iannella
- Department of ‘Organi di Senso’, University “Sapienza”, Viale dell’Università, 33, 00185 Rome, Italy; (G.I.); (G.M.); (A.P.)
| | - Giuseppe Magliulo
- Department of ‘Organi di Senso’, University “Sapienza”, Viale dell’Università, 33, 00185 Rome, Italy; (G.I.); (G.M.); (A.P.)
| | - Annalisa Pace
- Department of ‘Organi di Senso’, University “Sapienza”, Viale dell’Università, 33, 00185 Rome, Italy; (G.I.); (G.M.); (A.P.)
| | - Jerome Rene Lechien
- Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, UMONS Research Institute for Health Sciences and Technology, University of Mons, 7022 Mons, Belgium;
| | - Christian Calvo-Henriquez
- Service of Otolaryngology, Hospital Complex of Santiago de Compostela, 15705 Santiago de Compostela, Spain;
| | - Salvatore Cocuzza
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, Via S. Sofia, 78, 95125 Catania, Italy; (S.C.); (F.M.P.)
| | - Federica Maria Parisi
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, ENT Section, University of Catania, Via S. Sofia, 78, 95125 Catania, Italy; (S.C.); (F.M.P.)
| | - Valentin Favier
- Service d’ORL et de Chirurgie Cervico-Faciale, Centre Hospitalo-Universitaire de Montpellier, 80 Avenue Augustin Fliche, 34000 Montpellier, France
| | - Ahmed Yassin Bahgat
- Department of Otorhinolaryngology, Alexandria University, Alexandria 21577, Egypt;
| | - Giovanni Cammaroto
- Department of Head-Neck Surgery, Otolaryngology, Head-Neck and Oral Surgery Unit, Morgagni Pierantoni Hospital, Via Carlo Forlanini, 34, 47121 Forlì, Italy;
| | - Luigi La Via
- Department of Anaesthesia and Intensive Care, University Hospital Policlinico-San Marco, 95125 Catania, Italy;
| | - Caterina Gagliano
- Faculty of Medicine and Surgery, University of Enna Kore, 94100 Enna, Italy; (S.L.); (C.G.)
| | - Alberto Caranti
- ENT and Audiology Department, University of Ferrara, 44121 Ferrara, Italy; (A.C.); (C.V.)
| | - Claudio Vicini
- ENT and Audiology Department, University of Ferrara, 44121 Ferrara, Italy; (A.C.); (C.V.)
| | - Antonino Maniaci
- Faculty of Medicine and Surgery, University of Enna Kore, 94100 Enna, Italy; (S.L.); (C.G.)
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13
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Guo H, Liu Y, Yu X, Tian N, Liu Y, Yu D. Identifying key antioxidative stress factors regulating Nrf2 in the genioglossus with human umbilical cord mesenchymal stem-cell therapy. Sci Rep 2024; 14:5838. [PMID: 38462642 PMCID: PMC10925593 DOI: 10.1038/s41598-024-55103-8] [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: 12/17/2023] [Accepted: 02/20/2024] [Indexed: 03/12/2024] Open
Abstract
Intermittent hypoxia in patients with obstructive sleep apnea (OSA) hypopnea syndrome (OSAHS) is associated with pharyngeal cavity collapse during sleep. The effect of human umbilical cord mesenchymal stem cells (HUCMSCs) on OSA-induced oxidative damage in the genioglossus and whether nuclear factor erythroid 2-related factor 2 (Nrf2) or its upstream genes play a key role in this process remains unclear. This study aimed to identify the key factors responsible for oxidative damage during OSAHS through Nrf2 analysis and hypothesize the mechanism of HUCMSC therapy. We simulated OSA using an intermittent hypoxia model, observed the oxidative damage in the genioglossus and changes in Nrf2 expression during intermittent hypoxia, and administered HUCMSCs therapy. Nrf2 initially increased, then decreased, aggravating the oxidative damage in the genioglossus; Nrf2 protein content decreased during hypoxia. Using transcriptomics, we identified seven possible factors in HUCMSCs involved in ameliorating oxidative stress by Nrf2, of which DJ-1 and MEF2A, showing trends similar to Nrf2, were selected by polymerase chain reaction. HUCMSCs may reduce oxidative stress induced by intermittent hypoxia through Nrf2, and the possible upstream target genes in this process are MEF2A and DJ-1. Further studies are needed to verify these findings.
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Affiliation(s)
- Haixian Guo
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, 4026 Yatai Street, Changchun, 130041, Jilin Province, China
| | - Yue Liu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, 4026 Yatai Street, Changchun, 130041, Jilin Province, China
| | - Xinlu Yu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, 4026 Yatai Street, Changchun, 130041, Jilin Province, China
| | - Na Tian
- Jilin Tuohua Biotechnology Co., LTD, Tiedong District, Siping, 136000, Jilin Province, China
| | - Yan Liu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, 4026 Yatai Street, Changchun, 130041, Jilin Province, China.
| | - Dan Yu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, 4026 Yatai Street, Changchun, 130041, Jilin Province, China.
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14
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Kıran TR, Otlu Ö, Erdem M, Geçkil AA, Berber NK, İn E. The effects of disease severity and comorbidity on oxidative stress biomarkers in obstructive sleep apnea. Sleep Breath 2024; 28:151-163. [PMID: 37430029 DOI: 10.1007/s11325-023-02870-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 05/01/2023] [Accepted: 06/07/2023] [Indexed: 07/12/2023]
Abstract
PURPOSE Ischemia-modified albumin (IMA), total oxidant status (TOS), and total antioxidant status (TAS) are biomarkers used to evaluate oxidative stress status in various diseases including obstructive sleep apnea (OSA). In this study, we investigated the effects of disease severity and comorbidity on IMA, TOS and TAS levels in OSA. METHODS Patients with severe OSA (no-comorbidity, one comorbidity, and multiple comorbidities) and mild-moderate OSA (no-comorbidity, one and multiple comorbidities), and healthy controls were included in the study. Polysomnography was applied to all cases and blood samples were taken from each participant at the same time of day. ELISA was used to measure IMA levels in serum samples and colorimetric commercial kits were used to perform TOS and TAS analyses. In addition, routine biochemical analyses were performed on all serum samples. RESULTS A total of 74 patients and 14 healthy controls were enrolled. There was no statistically significant difference between the disease groups according to gender, smoking status, age, body mass index (BMI), HDL, T3, T4, TSH, and B12 (p > 0.05). As the severity of OSA and comorbidities increased, IMA, TOS, apnea-hypopnea index (AHI), desaturation index (T90), cholesterol, LDL, triglyceride, AST, and CRP values increased significantly (p < 0.05). On the other hand, TAS, minimum desaturation, and mean desaturation values decreased significantly (p < 0.05). CONCLUSIONS We concluded that IMA, TOS, and TAS levels may indicate OSA-related oxidative stress, but as the severity of OSA increases and with the presence of comorbidity, IMA and TOS levels may increase and TAS levels decrease. These findings suggest that disease severity and presence/absence of comorbidity should be considered in studies on OSA.
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Affiliation(s)
- Tuğba Raika Kıran
- Department of Medical Biochemistry, Faculty of Medicine, Malatya Turgut Özal University, Malatya, Turkey.
| | - Önder Otlu
- Department of Medical Biochemistry, Faculty of Medicine, Malatya Turgut Özal University, Malatya, Turkey
| | - Mehmet Erdem
- Department of Medical Biochemistry, Faculty of Medicine, Malatya Turgut Özal University, Malatya, Turkey
| | - Ayşegül Altıntop Geçkil
- Department of Pulmonary Medicine, Faculty of Medicine, Malatya Turgut Özal University, Malatya, Turkey
| | - Nurcan Kırıcı Berber
- Department of Pulmonary Medicine, Faculty of Medicine, Malatya Turgut Özal University, Malatya, Turkey
| | - Erdal İn
- Department of Pulmonary Medicine, Faculty of Medicine, Malatya Turgut Özal University, Malatya, Turkey
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15
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Song R, Baker TL, Watters JJ, Kumar S. Obstructive Sleep Apnea-Associated Intermittent Hypoxia-Induced Immune Responses in Males, Pregnancies, and Offspring. Int J Mol Sci 2024; 25:1852. [PMID: 38339130 PMCID: PMC10856042 DOI: 10.3390/ijms25031852] [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: 12/27/2023] [Revised: 01/22/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
Obstructive sleep apnea (OSA), a respiratory sleep disorder associated with cardiovascular diseases, is more prevalent in men. However, OSA occurrence in pregnant women rises to a level comparable to men during late gestation, creating persistent effects on both maternal and offspring health. The exact mechanisms behind OSA-induced cardiovascular diseases remain unclear, but inflammation and oxidative stress play a key role. Animal models using intermittent hypoxia (IH), a hallmark of OSA, reveal several pro-inflammatory signaling pathways at play in males, such as TLR4/MyD88/NF-κB/MAPK, miRNA/NLRP3, and COX signaling, along with shifts in immune cell populations and function. Limited evidence suggests similarities in pregnancies and offspring. In addition, suppressing these inflammatory molecules ameliorates IH-induced inflammation and tissue injury, providing new potential targets to treat OSA-associated cardiovascular diseases. This review will focus on the inflammatory mechanisms linking IH to cardiovascular dysfunction in males, pregnancies, and their offspring. The goal is to inspire further investigations into the understudied populations of pregnant females and their offspring, which ultimately uncover underlying mechanisms and therapeutic interventions for OSA-associated diseases.
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Affiliation(s)
- Ruolin Song
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA; (R.S.); (T.L.B.); (J.J.W.)
| | - Tracy L. Baker
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA; (R.S.); (T.L.B.); (J.J.W.)
| | - Jyoti J. Watters
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA; (R.S.); (T.L.B.); (J.J.W.)
| | - Sathish Kumar
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA; (R.S.); (T.L.B.); (J.J.W.)
- Department of Obstetrics and Gynecology, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53792, USA
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16
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Ercolano E, Bencivenga L, Palaia ME, Carbone G, Scognamiglio F, Rengo G, Femminella GD. Intricate relationship between obstructive sleep apnea and dementia in older adults. GeroScience 2024; 46:99-111. [PMID: 37814196 PMCID: PMC10828345 DOI: 10.1007/s11357-023-00958-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/21/2023] [Indexed: 10/11/2023] Open
Abstract
Numerous evidence reports direct correlation between cognitive impairment, Alzheimer's disease and sleep disorders, in particular obstructive sleep apnea. Both obstructive sleep apnea and Alzheimer's disease are highly prevalent conditions whose incidence increases with age. Several studies demonstrate how sleep-disordered breathing may lead to poor cognition, even though the underlying mechanisms of this association remain partially unclear. According to the most recent studies, obstructive sleep apnea may be considered a modifiable risk factor for cognitive dysfunction. In the present review, the authors aim to integrate recent research examining obstructive sleep apnea and Alzheimer's disease biomarkers, also focusing on the mechanisms that support this correlation, including but not limited to the role of hypoxia and cardiovascular risk. Moreover, the potential favourable effect of obstructive sleep apnea therapy on cognitive function is discussed, to evaluate the benefits deriving from appropriate treatment of sleep-disordered breathing on cognition.
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Affiliation(s)
- Erica Ercolano
- Department of Translational Medical Sciences, University of Naples "Federico II", Via Pansini, 5, Naples, Italy
| | - Leonardo Bencivenga
- Department of Translational Medical Sciences, University of Naples "Federico II", Via Pansini, 5, Naples, Italy
| | - Maria Emiliana Palaia
- Department of Translational Medical Sciences, University of Naples "Federico II", Via Pansini, 5, Naples, Italy
| | - Giovanni Carbone
- Department of Translational Medical Sciences, University of Naples "Federico II", Via Pansini, 5, Naples, Italy
| | - Francesco Scognamiglio
- Department of Translational Medical Sciences, University of Naples "Federico II", Via Pansini, 5, Naples, Italy
| | - Giuseppe Rengo
- Department of Translational Medical Sciences, University of Naples "Federico II", Via Pansini, 5, Naples, Italy
- Istituti Clinici Scientifici ICS Maugeri - S.P.A. - Istituti Di Ricovero E Cura a Carattere Scientifico (IRCCS) Istituto Scientifico Di Telese Terme, Telese, Italy
| | - Grazia Daniela Femminella
- Department of Translational Medical Sciences, University of Naples "Federico II", Via Pansini, 5, Naples, Italy.
- Department of Brain Sciences, Imperial College London, London, UK.
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17
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Takasawa S, Makino M, Yamauchi A, Sakuramoto‐Tsuchida S, Hirota R, Fujii R, Asai K, Takeda Y, Uchiyama T, Shobatake R, Ota H. Intermittent hypoxia increased the expression of ESM1 and ICAM-1 in vascular endothelial cells via the downregulation of microRNA-181a1. J Cell Mol Med 2024; 28:e18039. [PMID: 37968862 PMCID: PMC10805502 DOI: 10.1111/jcmm.18039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 09/25/2023] [Accepted: 10/19/2023] [Indexed: 11/17/2023] Open
Abstract
Sleep apnea syndrome (SAS) exposes cells throughout the body to intermittent hypoxia (IH). Intermittent hypoxia is a risk factor not only for hypertension and insulin resistance but also for vascular dysfunction. We have reported correlations between IH, insulin resistance and hypertension. However, the details of why IH leads to vascular dysfunction remain unclear. In this study, we investigated inflammation-related transcripts in vascular endothelial cells (human HUEhT-1 and mouse UV2) exposed to IH by real-time RT-PCR and found that intercellular adhesion molecule-1 (ICAM-1) and endothelial cell-specific molecule-1 (ESM1) mRNAs were significantly increased. ELISA confirmed that, in the UV2 cell medium, ICAM-1 and ESM1 were significantly increased by IH. However, the promoter activities of ICAM-1 and ESM1 were not upregulated. On the other hand, IH treatment significantly decreased microRNA (miR)-181a1 in IH-treated cells. The introduction of miR-181a1 mimic but not miR-181a1 mimic NC abolished the IH-induced upregulation of Ican-1 and ESM1. These results indicated that ICAM-1 and ESM1 were upregulated by IH via the IH-induced downregulation of miR-181a1 in vascular endothelial cells and suggested that SAS patients developed atherosclerosis via the IH-induced upregulation of ICAM-1 and ESM1.
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Grants
- 08102003 Ministry of Education, Culture, Sports, Science and Technology
- 5K19425 Ministry of Education, Culture, Sports, Science and Technology
- 21K16344 Ministry of Education, Culture, Sports, Science and Technology
- 21K15375 Ministry of Education, Culture, Sports, Science and Technology
- Ministry of Education, Culture, Sports, Science and Technology
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Affiliation(s)
- Shin Takasawa
- Department of BiochemistryNara Medical UniversityNaraJapan
| | - Mai Makino
- Department of BiochemistryNara Medical UniversityNaraJapan
| | - Akiyo Yamauchi
- Department of BiochemistryNara Medical UniversityNaraJapan
| | | | - Rina Hirota
- Department of BiochemistryNara Medical UniversityNaraJapan
| | - Ryusei Fujii
- Department of BiochemistryNara Medical UniversityNaraJapan
| | - Keito Asai
- Department of BiochemistryNara Medical UniversityNaraJapan
| | - Yoshinori Takeda
- Department of BiochemistryNara Medical UniversityNaraJapan
- Department of Obstetrics and GynecologyNara Medical UniversityNaraJapan
| | - Tomoko Uchiyama
- Department of BiochemistryNara Medical UniversityNaraJapan
- Department of Diagnostic PathologyNara Medical UniversityNaraJapan
| | - Ryogo Shobatake
- Department of BiochemistryNara Medical UniversityNaraJapan
- Department of NeurologyNara Medical UniversityNaraJapan
| | - Hiroyo Ota
- Department of BiochemistryNara Medical UniversityNaraJapan
- Department of Respiratory MedicineNara Medical UniversityNaraJapan
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18
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Andersen ML, Gozal D, Pires GN, Tufik S. Exploring the potential relationships among obstructive sleep apnea, erectile dysfunction, and gut microbiota: a narrative review. Sex Med Rev 2023; 12:76-86. [PMID: 37385976 DOI: 10.1093/sxmrev/qead026] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 07/01/2023]
Abstract
INTRODUCTION Poor sleep quality is closely associated with comorbidities affecting a multitude of organ systems. Among the sleep disorders in the population, there has recently been an increase in the prevalence of obstructive sleep apnea (OSA), which has particularly affected men. The intermittent hypoxia and sleep fragmentation associated with OSA can result in the manifestation or aggravation of a number of pathophysiologic conditions, including the impairment of reproductive function in men and women. In this context, erectile dysfunction (ED) is of particular concern. Other consequences of OSA are changes in the gastrointestinal microbiota, with the resultant dysbiosis having potentially harmful consequences that promote downstream exacerbation of various comorbidities. OBJECTIVES This narrative review aims to explore the potential relationships among ED, gut microbiota, and OSA. METHODS A search of the relevant literature was performed in the PubMed, Embase, Medline, and Web of Science databases. RESULTS Sleep is important for regulating the body's functions, and sleep deprivation can negatively affect health. OSA can damage organic functions, including reproductive function, and can lead to ED. Restoring the microbiota and improving sleep can help to improve sexual function or reverse ED and enhance other associated conditions mediated through the gut-brain axis relationship. Probiotics and prebiotics can be used as supportive strategies in the prevention and treatment of OSA, as they help to reduce systemic inflammation and improve intestinal barrier function. CONCLUSION A good diet, a healthy lifestyle, and proper bowel function are essential in controlling depression and several other pathologies. Modulating the gut microbiota through probiotics and prebiotics can provide a viable strategy for developing new therapeutic options in treating many conditions. A better understanding of these a priori unrelated phenomena would foster our understanding of the effects of OSA on human fertility and how changes in gut microbiota may play a role.
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Affiliation(s)
- Monica Levy Andersen
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, 04024-002, Brazil
| | - David Gozal
- Department of Child Health and the Child Health Research Institute, University of Missouri School of Medicine, Columbia, MO 65212, United States
| | - Gabriel Natan Pires
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, 04024-002, Brazil
| | - Sergio Tufik
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, 04024-002, Brazil
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19
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Nambiema A, Lisan Q, Vaucher J, Perier MC, Boutouyrie P, Danchin N, Thomas F, Guibout C, Solelhac G, Heinzer R, Jouven X, Marques-Vidal P, Empana JP. Healthy sleep score changes and incident cardiovascular disease in European prospective community-based cohorts. Eur Heart J 2023; 44:4968-4978. [PMID: 37860848 PMCID: PMC10719494 DOI: 10.1093/eurheartj/ehad657] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/20/2023] [Accepted: 07/25/2023] [Indexed: 10/21/2023] Open
Abstract
BACKGROUND AND AIMS Evidence on the link between sleep patterns and cardiovascular diseases (CVDs) in the community essentially relies on studies that investigated one single sleep pattern at one point in time. This study examined the joint effect of five sleep patterns at two time points with incident CVD events. METHODS By combining the data from two prospective studies, the Paris Prospective Study III (Paris, France) and the CoLaus|PsyCoLaus study (Lausanne, Switzerland), a healthy sleep score (HSS, range 0-5) combining five sleep patterns (early chronotype, sleep duration of 7-8 h/day, never/rarely insomnia, no sleep apnoea, and no excessive daytime sleepiness) was calculated at baseline and follow-up. RESULTS The study sample included 11 347 CVD-free participants aged 53-64 years (44.6% women). During a median follow-up of 8.9 years [interquartile range (IQR): 8.0-10.0], 499 first CVD events occurred (339 coronary heart disease (CHD) and 175 stroke). In multivariate Cox analysis, the risk of CVD decreased by 18% [hazard ratio (HR) 0.82, 95% confidence interval (CI) 0.76-0.89] per one-point increment in the HSS. After a median follow-up of 6.0 years (IQR: 4.0-8.0) after the second follow-up, 262 first CVD events occurred including 194 CHD and 72 stroke. After adjusting for baseline HSS and covariates, the risk of CVD decreased by 16% (HR 0.84, 95% CI 0.73-0.97) per unit higher in the follow-up HSS over 2-5 years. CONCLUSIONS Higher HSS and HSS improvement over time are associated with a lower risk of CHD and stroke in the community.
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Affiliation(s)
- Aboubakari Nambiema
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Centre (PARCC), Integrative Epidemiology of Cardiovascular Disease, 56 rue Leblanc, Paris 75015, France
| | - Quentin Lisan
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Centre (PARCC), Integrative Epidemiology of Cardiovascular Disease, 56 rue Leblanc, Paris 75015, France
- Department of Head and Neck Surgery, Foch Hospital, Suresnes, France
| | - Julien Vaucher
- Department of Medicine, Internal Medicine, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Marie-Cecile Perier
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Centre (PARCC), Integrative Epidemiology of Cardiovascular Disease, 56 rue Leblanc, Paris 75015, France
| | - Pierre Boutouyrie
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Centre (PARCC), Cellular, Molecular and Pathophysiological Mechanisms of Heart Failure, APHP, DMU CARTE, Pharmacology, Paris, France
| | - Nicolas Danchin
- Preventive and Clinical Investigation Center (IPC), Paris, France
| | | | - Catherine Guibout
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Centre (PARCC), Integrative Epidemiology of Cardiovascular Disease, 56 rue Leblanc, Paris 75015, France
| | - Geoffroy Solelhac
- Center for Investigation and Research in Sleep, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Raphael Heinzer
- Center for Investigation and Research in Sleep, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Xavier Jouven
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Centre (PARCC), Integrative Epidemiology of Cardiovascular Disease, 56 rue Leblanc, Paris 75015, France
| | - Pedro Marques-Vidal
- Center for Investigation and Research in Sleep, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Jean-Philippe Empana
- Université Paris Cité, INSERM U970, Paris Cardiovascular Research Centre (PARCC), Integrative Epidemiology of Cardiovascular Disease, 56 rue Leblanc, Paris 75015, France
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Pinilla L, Benítez ID, Gracia-Lavedan E, Torres G, Mínguez O, Vaca R, Jové M, Sol J, Pamplona R, Barbé F, Sánchez-de-la-Torre M. Metabolipidomic Analysis in Patients with Obstructive Sleep Apnea Discloses a Circulating Metabotype of Non-Dipping Blood Pressure. Antioxidants (Basel) 2023; 12:2047. [PMID: 38136167 PMCID: PMC10741016 DOI: 10.3390/antiox12122047] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/07/2023] [Accepted: 11/19/2023] [Indexed: 12/24/2023] Open
Abstract
A non-dipping blood pressure (BP) pattern, which is frequently present in patients with obstructive sleep apnea (OSA), confers high cardiovascular risk. The mechanisms connecting these two conditions remain unclear. In the present study we performed a comprehensive analysis of the blood metabolipidome that aims to provide new insights into the molecular link between OSA and the dysregulation of circadian BP rhythmicity. This was an observational prospective longitudinal study involving adults with suspected OSA who were subjected to full polysomnography (PSG). Patients with an apnea-hypopnea index ≥ 5 events/h were included. Fasting plasma samples were obtained the morning after PSG. Based on the dipping ratio (DR; ratio of night/day BP values) measured via 24 h ambulatory BP monitoring, two groups were established: dippers (DR ≤ 0.9) and non-dippers (DR > 0.9). Treatment recommendations for OSA followed the clinical guidelines. Untargeted metabolomic and lipidomic analyses were performed in plasma samples via liquid chromatography-tandem mass spectrometry. Non-dipper patients represented 53.7% of the cohort (88/164 patients). A set of 31 metabolic species and 13 lipidic species were differentially detected between OSA patients who present a physiologic nocturnal BP decrease and those with abnormal BP dipping. Among the 44 differentially abundant plasma compounds, 25 were putatively identified, notably glycerophospholipids, glycolipids, sterols, and fatty acid derivates. Multivariate analysis defined a specific metabotype of non-dipping BP, which showed a significant dose-response relationship with PSG parameters of OSA severity, and with BP dipping changes after 6 months of OSA treatment with continuous positive airway pressure (CPAP). Bioinformatic analyses revealed that the identified metabolipidomic profile was found to be implicated in multiple systemic biological pathways, with potential physiopathologic implications for the circadian control of BP among individuals with OSA.
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Affiliation(s)
- Lucía Pinilla
- Precision Medicine in Chronic Diseases Group, Respiratory Department, University Hospital Arnau de Vilanova and Santa María, Department of Nursing and Physiotherapy, Faculty of Nursing and Physiotherapy, University of Lleida, IRBLleida, 25198 Lleida, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Iván D. Benítez
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Translational Research in Respiratory Medicine Group, Respiratory Department, University Hospital Arnau de Vilanova and Santa María, IRBLleida, 25198 Lleida, Spain
| | - Esther Gracia-Lavedan
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Translational Research in Respiratory Medicine Group, Respiratory Department, University Hospital Arnau de Vilanova and Santa María, IRBLleida, 25198 Lleida, Spain
| | - Gerard Torres
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Translational Research in Respiratory Medicine Group, Respiratory Department, University Hospital Arnau de Vilanova and Santa María, IRBLleida, 25198 Lleida, Spain
| | - Olga Mínguez
- Translational Research in Respiratory Medicine Group, Respiratory Department, University Hospital Arnau de Vilanova and Santa María, IRBLleida, 25198 Lleida, Spain
| | - Rafaela Vaca
- Translational Research in Respiratory Medicine Group, Respiratory Department, University Hospital Arnau de Vilanova and Santa María, IRBLleida, 25198 Lleida, Spain
| | - Mariona Jové
- Department of Experimental Medicine, University of Lleida-Biomedical Research Institute of Lleida (UdL-IRBLleida), 25198 Lleida, Spain
| | - Joaquim Sol
- Department of Experimental Medicine, University of Lleida-Biomedical Research Institute of Lleida (UdL-IRBLleida), 25198 Lleida, Spain
- Institut Català de la Salut, Atenció Primària, 25198 Lleida, Spain
- Research Support Unit Lleida, Fundació Institut Universitari per a la Recerca a l’Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), 08007 Lleida, Spain
| | - Reinald Pamplona
- Department of Experimental Medicine, University of Lleida-Biomedical Research Institute of Lleida (UdL-IRBLleida), 25198 Lleida, Spain
| | - Ferran Barbé
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Translational Research in Respiratory Medicine Group, Respiratory Department, University Hospital Arnau de Vilanova and Santa María, IRBLleida, 25198 Lleida, Spain
| | - Manuel Sánchez-de-la-Torre
- Precision Medicine in Chronic Diseases Group, Respiratory Department, University Hospital Arnau de Vilanova and Santa María, Department of Nursing and Physiotherapy, Faculty of Nursing and Physiotherapy, University of Lleida, IRBLleida, 25198 Lleida, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
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21
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Huang Z, Huang D, Liu F, Liang J, Zhao Z, Lu H, Xu Y, Qiu Y, Li S. Modified oropharyngeal muscle training and scientific vocalization are effective in treating mild-to-moderate obstructive sleep apnea hypoventilation syndrome in adults. Acta Otolaryngol 2023; 143:989-995. [PMID: 38164829 DOI: 10.1080/00016489.2023.2288283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/18/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Obstructive Sleep Apnea-hypopnea Syndrome (OSAHS) has become a major public health challenge globally. Most patients have a concomitant voice disorder. The existing treatment methods have problems.Aims/Objectives: This study investigates the therapeutic effect of adding scientific vocalization to oropharyngeal muscle training on OSAHS patients. MATERIAL AND METHODS A total of 30 patients were selected from September 2020 to October 2022. They underwent overnight polysomnography (PSG) and were identified as having mild to moderate obstructive sleep apnea hypoventilation syndrome. They were then chosen for a three-month period of modified oropharyngeal muscle training combined with scientific vocalization. RESULTS Out of the 30 selected patients, 26 patients completed the training. Results showed a significant changes in multiple sleep-related indicators. he clinical outcomes were as follows: 7 cases were cured, 13 cases were effective, and 6 cases were ineffective. The overall effective rate was 76.92%. CONCLUSIONS AND SIGNIFICANCE The combination of oropharyngeal muscle training and scientific vocalization for the treatment of mild to moderate OSAHS in adults significantly improves several measures used in the treatment of the condition. The method is easy to learn, effective, safe to use, and affordable. It provides more options for the treatment of OSAHS.
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Affiliation(s)
- Zuofeng Huang
- Department of Otolaryngology, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
| | - Danlin Huang
- Department of Otolaryngology, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
| | - Fei Liu
- Department of Medical Imaging, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
| | - Junyi Liang
- Department of Otolaryngology, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
| | - Zhimin Zhao
- Department of Otolaryngology, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
| | - Hui Lu
- Department of Otolaryngology, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
| | - Ying Xu
- Department of Otolaryngology, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
| | - Yingwei Qiu
- Department of Medical Imaging, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
| | - Shuo Li
- Department of Otolaryngology, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital) Nanshan District of Shenzhen, Shenzhen, China
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22
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Altintas N, Fazlioglu N, Guzel S, Yilmaz A, Aydın C. Is meteorin-like (Metrnl) a novel biomarker to distinguish patients with obstructive sleep apnea (OSA) and patients with OSA at vascular risk. Sleep Breath 2023; 27:1865-1874. [PMID: 36877355 DOI: 10.1007/s11325-023-02800-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 02/20/2023] [Accepted: 02/24/2023] [Indexed: 03/07/2023]
Abstract
PURPOSE Metrnl, a newly discovered adipokine with significant expression in white adipose tissue, promotes energy expenditure and contributes to the development of cardiovascular disorders. Endocan is a surrogate marker for endothelial dysfunction and is linked to cardiovascular risk factors. Higher cardiovascular morbidity and mortality have been linked to obstructive sleep apnea (OSA). In this study, we investigated the potential of serum Metrnl and endocan as biomarkers to identify patients with OSA who are at increased cardiovascular risk and differentiate them from healthy controls. METHODS The study included the evaluation of serum levels of endocan and Metrnl in individuals with OSA and healthy controls. All participants underwent full polysomnography to evaluate their sleep, and carotid intima-media thickness (CIMT) was measured in each of them. RESULTS Patients with OSA (n = 117) had considerably lower levels of Metrnl and significantly higher levels of endocan than controls (n = 59). Once confounding factors were taken into account, both Metrnl and endocan were effective predictors of OSA. Additionally, the severity of OSA, as determined by the apnea-hypopnea index (AHI), was linked to Metrnl and endocan levels. The study also found a significant and independent inverse association between CIMT and Metrnl, along with a positive association with endocan after making multiple adjustments. Furthermore, there was a significant and independent connection between CIMT and AHI. CONCLUSION Based on these findings, Metrnl and endocan have the potential to be valuable markers for identifying patients with OSA who are at increased risk of early vascular damage.
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Affiliation(s)
- Nejat Altintas
- Department of Pulmonary Medicine, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey.
| | - Nevin Fazlioglu
- Department of Pulmonary Medicine, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Savas Guzel
- Department of Biochemistry, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Ahsen Yilmaz
- Department of Biochemistry, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Cihan Aydın
- Department of Cardiology, Faculty of Medicine, Namik Kemal University, Tekirdag, Turkey
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23
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Habas E, Al Adab A, Arryes M, Alfitori G, Farfar K, Habas AM, Akbar RA, Rayani A, Habas E, Elzouki A. Anemia and Hypoxia Impact on Chronic Kidney Disease Onset and Progression: Review and Updates. Cureus 2023; 15:e46737. [PMID: 38022248 PMCID: PMC10631488 DOI: 10.7759/cureus.46737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Chronic kidney disease (CKD) is caused by hypoxia in the renal tissue, leading to inflammation and increased migration of pathogenic cells. Studies showed that leukocytes directly sense hypoxia and respond by initiating gene transcription, encoding the 2-integrin adhesion molecules. Moreover, other mechanisms participate in hypoxia, including anemia. CKD-associated anemia is common, which induces and worsens hypoxia, contributing to CKD progression. Anemia correction can slow CKD progression, but it should be cautiously approached. In this comprehensive review, the underlying pathophysiology mechanisms and the impact of renal tissue hypoxia and anemia in CKD onset and progression will be reviewed and discussed in detail. Searching for the latest updates in PubMed Central, Medline, PubMed database, Google Scholar, and Google search engines were conducted for original studies, including cross-sectional studies, cohort studies, clinical trials, and review articles using different keywords, phrases, and texts such as "CKD progression, anemia in CKD, CKD, anemia effect on CKD progression, anemia effect on CKD progression, and hypoxia and CKD progression". Kidney tissue hypoxia and anemia have an impact on CKD onset and progression. Hypoxia causes nephron cell death, enhancing fibrosis by increasing interstitium protein deposition, inflammatory cell activation, and apoptosis. Severe anemia correction improves life quality and may delay CKD progression. Detection and avoidance of the risk factors of hypoxia prevent recurrent acute kidney injury (AKI) and reduce the CKD rate. A better understanding of kidney hypoxia would prevent AKI and CKD and lead to new therapeutic strategies.
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Affiliation(s)
| | - Aisha Al Adab
- Internal Medicine, Hamad General Hospital, Doha, QAT
| | - Mehdi Arryes
- Internal Medicine, Hamad General Hospital, Doha, QAT
| | | | | | - Ala M Habas
- Internal Medicine, Tripoli University, Tripoli, LBY
| | - Raza A Akbar
- Internal Medicine, Hamad General Hospital, Doha, QAT
| | - Amnna Rayani
- Hemat-oncology Department, Pediatric Tripoli Hospital, Tripoli University, Tripoli, LBY
| | - Eshrak Habas
- Internal Medicine, Tripoli University, Tripoli, LBY
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24
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Dong B, Lu Y, He S, Li B, Li Y, Lai Q, Li W, Ji S, Chen Y, Dai L, Chen L. Multisite and multitimepoint proteomics reveal that patent foramen ovale closure improves migraine and epilepsy by reducing right-to-left shunt-induced hypoxia. MedComm (Beijing) 2023; 4:e334. [PMID: 37576864 PMCID: PMC10422075 DOI: 10.1002/mco2.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/02/2023] [Accepted: 03/12/2023] [Indexed: 08/15/2023] Open
Abstract
Patent foramen ovale (PFO) is a congenital defect in the partition between two atria, which may cause right-to-left shunt (RLS), leading to neurological chronic diseases with episodic manifestations (NCDEMs), such as migraine and epilepsy. However, whether PFO closure was effective in improving NCDEMs and the mechanism were unclear. Twenty-eight patients with migraine or epilepsy who underwent PFO closure were recruited. Notably, approximately half of patients received 50% or more reduction in seizure or headache attacks. Meanwhile, the postoperative blood oxygen partial pressure and oxygen saturation were elevated after PFO closure. Multisite (peripheral, right, and left atrial) and multitimepoint (before and after surgery) plasma proteomics from patients showed that the levels of free hemoglobin and cell adhesion molecules (CAMs) were significantly increased after PFO closure, which may be related to the relief of the hypoxic state. Furtherly, the omics data from multiple brain regions of mice revealed that a large number of proteins were differentially expressed in the occipital region in response to PFO, including redox molecules and CAMs, suggesting PFO-caused hypoxia may have great impacts on occipital region. Collectively, PFO may cause NCDEMs due to RLS-induced hypoxia, and PFO closure could prevent RLS to improve migraine and epilepsy.
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Affiliation(s)
- Bosi Dong
- Department of NeurologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Ying Lu
- State Key Laboratory of BiotherapyNational Clinical Research Center for Geriatrics and Department of General PracticeWest China HospitalSichuan Universityand Collaborative Innovation Center of BiotherapyChengduSichuanChina
| | - Siyu He
- State Key Laboratory of BiotherapyNational Clinical Research Center for Geriatrics and Department of General PracticeWest China HospitalSichuan Universityand Collaborative Innovation Center of BiotherapyChengduSichuanChina
| | - Baichuan Li
- Department of NeurologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Yajiao Li
- Department of CardiologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Qi Lai
- Department of NeurologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Wanling Li
- Department of NeurologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Shuming Ji
- Department of Clinical Research ManagementWest China HospitalSichuan UniversityChengduSichuanChina
| | - Yucheng Chen
- Department of CardiologyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Lunzhi Dai
- State Key Laboratory of BiotherapyNational Clinical Research Center for Geriatrics and Department of General PracticeWest China HospitalSichuan Universityand Collaborative Innovation Center of BiotherapyChengduSichuanChina
| | - Lei Chen
- Department of NeurologyWest China HospitalSichuan UniversityChengduSichuanChina
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25
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Mastino P, Rosati D, de Soccio G, Romeo M, Pentangelo D, Venarubea S, Fiore M, Meliante PG, Petrella C, Barbato C, Minni A. Oxidative Stress in Obstructive Sleep Apnea Syndrome: Putative Pathways to Hearing System Impairment. Antioxidants (Basel) 2023; 12:1430. [PMID: 37507968 PMCID: PMC10376727 DOI: 10.3390/antiox12071430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/07/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
INTRODUCTION OSAS is a disease that affects 2% of men and 4% of women of middle age. It is a major health public problem because untreated OSAS could lead to cardiovascular, metabolic, and cerebrovascular complications. The more accepted theory relates to oxidative stress due to intermittent hypoxia, which leads, after an intense inflammatory response through multiple pathways, to endothelial damage. The objective of this study is to demonstrate a correlation between OSAS and hearing loss, the effect of the CPAP on hearing function, and if oxidative stress is also involved in the damaging of the hearing system. METHODS A review of the literature has been executed. Eight articles have been found, where seven were about the correlation between OSAS and the hearing system, and only one was about the CPAP effects. It is noted that two of the eight articles explored the theory of oxidative stress due to intermittent hypoxia. RESULTS All studies showed a significant correlation between OSAS and hearing function (p < 0.05). CONCLUSIONS Untreated OSAS affects the hearing system at multiple levels. Oxidative stress due to intermittent hypoxia is the main pathogenetic mechanism of damage. CPAP has no effects (positive or negative) on hearing function. More studies are needed, with the evaluation of extended high frequencies, the execution of vocal audiometry in noisy environments, and the evaluation of potential biomarkers due to oxidative stress.
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Affiliation(s)
- Pierluigi Mastino
- Division of Otolaryngology-Head and Neck Surgery, Ospedale San Camillo de Lellis, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
| | - Davide Rosati
- Division of Otolaryngology-Head and Neck Surgery, Ospedale San Camillo de Lellis, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
| | - Giulia de Soccio
- Division of Otolaryngology-Head and Neck Surgery, Ospedale San Camillo de Lellis, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
| | - Martina Romeo
- Division of Otolaryngology-Head and Neck Surgery, Ospedale San Camillo de Lellis, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
| | - Daniele Pentangelo
- Division of Otolaryngology-Head and Neck Surgery, Ospedale San Camillo de Lellis, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
| | - Stefano Venarubea
- Division of Clinical Pathology, Director of analysis Laboratory of De Lellis Hospital, Viale Kennedy, 02100 Rieti, Italy
| | - Marco Fiore
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Department of Sense Organs DOS, Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
| | - Piero Giuseppe Meliante
- Department of Sense Organs DOS, Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
| | - Carla Petrella
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Department of Sense Organs DOS, Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
| | - Christian Barbato
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Department of Sense Organs DOS, Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
| | - Antonio Minni
- Division of Otolaryngology-Head and Neck Surgery, Ospedale San Camillo de Lellis, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
- Department of Sense Organs DOS, Sapienza University of Rome, Viale del Policlinico 155, 00161 Roma, Italy
- Clinical Pathology Physician, Director of Analysis Laboratory of De Lellis Hospital, Division of Otolaryngology-Head and Neck Surgery, Ospedale San Camillo de Lellis, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
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26
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Drummond SE, Burns DP, El Maghrani S, Ziegler O, Healy V, O'Halloran KD. Chronic Intermittent Hypoxia-Induced Diaphragm Muscle Weakness Is NADPH Oxidase-2 Dependent. Cells 2023; 12:1834. [PMID: 37508499 PMCID: PMC10377874 DOI: 10.3390/cells12141834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/21/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Chronic intermittent hypoxia (CIH)-induced redox alterations underlie diaphragm muscle dysfunction. We sought to establish if NADPH oxidase 2 (NOX2)-derived reactive oxygen species (ROS) underpin CIH-induced changes in diaphragm muscle, which manifest as impaired muscle performance. Adult male mice (C57BL/6J) were assigned to one of three groups: normoxic controls (sham); chronic intermittent hypoxia-exposed (CIH, 12 cycles/hour, 8 h/day for 14 days); and CIH + apocynin (NOX2 inhibitor, 2 mM) administered in the drinking water throughout exposure to CIH. In separate studies, we examined sham and CIH-exposed NOX2-null mice (B6.129S-CybbTM1Din/J). Apocynin co-treatment or NOX2 deletion proved efficacious in entirely preventing diaphragm muscle dysfunction following exposure to CIH. Exposure to CIH had no effect on NOX2 expression. However, NOX4 mRNA expression was increased following exposure to CIH in wild-type and NOX2 null mice. There was no evidence of overt CIH-induced oxidative stress. A NOX2-dependent increase in genes related to muscle regeneration, antioxidant capacity, and autophagy and atrophy was evident following exposure to CIH. We suggest that NOX-dependent CIH-induced diaphragm muscle weakness has the potential to affect ventilatory and non-ventilatory performance of the respiratory system. Therapeutic strategies employing NOX2 blockade may function as an adjunct therapy to improve diaphragm muscle performance and reduce disease burden in diseases characterised by exposure to CIH, such as obstructive sleep apnoea.
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Affiliation(s)
- Sarah E Drummond
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, T12 XF62 Cork, Ireland
| | - David P Burns
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, T12 XF62 Cork, Ireland
| | - Sarah El Maghrani
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, T12 XF62 Cork, Ireland
| | - Oscar Ziegler
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, T12 XF62 Cork, Ireland
| | - Vincent Healy
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, T12 XF62 Cork, Ireland
| | - Ken D O'Halloran
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, T12 XF62 Cork, Ireland
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27
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Ahmed AM, Nur SM, Xiaochen Y. Association between obstructive sleep apnea and resistant hypertension: systematic review and meta-analysis. Front Med (Lausanne) 2023; 10:1200952. [PMID: 37332747 PMCID: PMC10272746 DOI: 10.3389/fmed.2023.1200952] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/02/2023] [Indexed: 06/20/2023] Open
Abstract
Introduction Obstructive sleep apnea syndrome (OSAS) is a chronic disorder characterized by recurring episode obstruction and collapse of upper airways during sleep, leading to hypoxia and sleep disruption. OSAS is commonly associated with an increased prevalence of hypertension. The underlying mechanism in OSA with hypertension is related to intermittent hypoxia. This hypoxia induces endothelial dysfunction, overactivity of sympathetic effects, oxidative stress, and systemic inflammation. Hypoxemia triggers the sympathetic process's overactivity, leading to the development of resistant hypertension in OSA. Thus, we hypothesize to evaluate the association between resistant hypertension and OSA. Methods The PubMed, ClinicalTrails.gov, CINAHL, Google Scholar, Cochrane Library, and Science Direct databases were searched from 2000 to January 2022 for studies demonstrating the association between resistant hypertension and OSA. The eligible articles underwent quality appraisal, meta-analysis, and heterogeneity assessment. Results This study comprises seven studies, including 2,541 patients ranged from 20 to 70 years. The pooled analysis of six studies demonstrated that OSAS patients with a history of increased age, gender, obesity, and smoking status are at an increased risk for resistant hypertension (OR: 4.16 [3.07, 5.64], I2:0%) than the non-OSAS patients. Similarly, the pooled effect demonstrated that patients with OSAS were at an increased risk of resistant hypertension (OR: 3.34 [2.44, 4.58]; I2:0%) than the non-OSAS patients when all associated risk factors were adjusted using multivariate analysis. Conclusion This study concludes that OSAS patients with or without related risk factors demonstrated increased risk for resistant hypertension.
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Affiliation(s)
- Abass Mahamoud Ahmed
- Department of Cardiology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu, China
- Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Salman Mohamud Nur
- Medical College, Yangzhou University, Yangzhou, Jiangsu, China
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, China
| | - Yuan Xiaochen
- Department of Cardiology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu, China
- Medical College, Yangzhou University, Yangzhou, Jiangsu, China
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Lv R, Liu X, Zhang Y, Dong N, Wang X, He Y, Yue H, Yin Q. Pathophysiological mechanisms and therapeutic approaches in obstructive sleep apnea syndrome. Signal Transduct Target Ther 2023; 8:218. [PMID: 37230968 DOI: 10.1038/s41392-023-01496-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 05/27/2023] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) is a common breathing disorder in sleep in which the airways narrow or collapse during sleep, causing obstructive sleep apnea. The prevalence of OSAS continues to rise worldwide, particularly in middle-aged and elderly individuals. The mechanism of upper airway collapse is incompletely understood but is associated with several factors, including obesity, craniofacial changes, altered muscle function in the upper airway, pharyngeal neuropathy, and fluid shifts to the neck. The main characteristics of OSAS are recurrent pauses in respiration, which lead to intermittent hypoxia (IH) and hypercapnia, accompanied by blood oxygen desaturation and arousal during sleep, which sharply increases the risk of several diseases. This paper first briefly describes the epidemiology, incidence, and pathophysiological mechanisms of OSAS. Next, the alterations in relevant signaling pathways induced by IH are systematically reviewed and discussed. For example, IH can induce gut microbiota (GM) dysbiosis, impair the intestinal barrier, and alter intestinal metabolites. These mechanisms ultimately lead to secondary oxidative stress, systemic inflammation, and sympathetic activation. We then summarize the effects of IH on disease pathogenesis, including cardiocerebrovascular disorders, neurological disorders, metabolic diseases, cancer, reproductive disorders, and COVID-19. Finally, different therapeutic strategies for OSAS caused by different causes are proposed. Multidisciplinary approaches and shared decision-making are necessary for the successful treatment of OSAS in the future, but more randomized controlled trials are needed for further evaluation to define what treatments are best for specific OSAS patients.
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Affiliation(s)
- Renjun Lv
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730000, China
| | - Xueying Liu
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China
| | - Yue Zhang
- Department of Geriatrics, the 2nd Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Na Dong
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730000, China
| | - Xiao Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730000, China
| | - Yao He
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730000, China
| | - Hongmei Yue
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou, 730000, China.
| | - Qingqing Yin
- Department of Geriatric Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China.
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Howarth TP, Karhu T, Kainulainen S, Chen X, Mahamid A, Töyräs J, Leppänen T. Oxygen resaturation rate is significantly associated with objectively assessed excessive daytime sleepiness in suspected obstructive sleep apnoea patients. Sleep Med 2023; 107:171-178. [PMID: 37187080 DOI: 10.1016/j.sleep.2023.04.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/22/2023] [Accepted: 04/27/2023] [Indexed: 05/17/2023]
Abstract
INTRODUCTION Commonly utilised metrics such as the apnoea-hypopnoea index show limited correlation to excessive daytime sleepiness (EDS). Oxygen desaturation parameters show better predictive power, however oxygen resaturation parameters have not yet been investigated. Oxygen resaturation may represent increased cardiovascular fitness and thus we hypothesized that a higher resaturation rate would be protective against EDS. METHODS Oxygen saturation parameters were computed via ABOSA software for adult patients referred for polysomnography and multiple sleep latency test in Israel Loewenstein hospital 2001-2011. EDS was defined as a mean sleep latency (MSL) below 8 min. RESULTS 1629 patients (75% male, 53% obese, median age of 54 years) were included for analysis. The average desaturation event nadir was 90.4% and resaturation rate 0.59%/second. Median MSL was 9.6 min, and 606 patients met criteria for EDS. Patients who were younger, female, and with larger desaturations had significantly higher resaturation rates (p < 0.001). In multivariate models, adjusted for age, sex, body mass index, and average desaturation depth, resaturation rate showed a significant negative correlation with MSL (z-score standardised beta, -1 (95%CI -0.49, -1.52)), and significantly increased odds ratio (OR) of EDS (OR, 1.28 (95%CI 1.07, 1.53)). The beta associated with resaturation rate was larger, though non-significantly, than that of desaturation depth (difference 0.36 (95% CI -1.34, 0.62), p = 0.470). CONCLUSION Oxygen resaturation parameters show significant associations with objectively assessed EDS independent of desaturation parameters. Thus, resaturation and desaturation parameters may reflect differing underlying mechanistic pathways and both be considered novel and appropriate markers for assessing sleep-disordered breathing and associated outcomes.
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Affiliation(s)
- Timothy P Howarth
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Darwin Respiratory and Sleep Health, Darwin Private Hospital, Darwin, Australia; College of Health and Human Sciences, Charles Darwin University, Darwin, Australia.
| | - Tuomas Karhu
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland
| | - Samu Kainulainen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland
| | - Xin Chen
- School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Australia
| | - Alaa Mahamid
- Sleep Disorders Unit, Loewenstein Hospital-Rehabilitation Center, Raanana, Israel
| | - Juha Töyräs
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Australia; Science Service Center, Kuopio University Hospital, Kuopio, Finland
| | - Timo Leppänen
- Department of Technical Physics, University of Eastern Finland, Kuopio, Finland; Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland; School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Australia
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Martín-González S, Ravelo-García AG, Navarro-Mesa JL, Hernández-Pérez E. Combining Heart Rate Variability and Oximetry to Improve Apneic Event Screening in Non-Desaturating Patients. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23094267. [PMID: 37177472 PMCID: PMC10181515 DOI: 10.3390/s23094267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
In this paper, we thoroughly analyze the detection of sleep apnea events in the context of Obstructive Sleep Apnea (OSA), which is considered a public health problem because of its high prevalence and serious health implications. We especially evaluate patients who do not always show desaturations during apneic episodes (non-desaturating patients). For this purpose, we use a database (HuGCDN2014-OXI) that includes desaturating and non-desaturating patients, and we use the widely used Physionet Apnea Dataset for a meaningful comparison with prior work. Our system combines features extracted from the Heart-Rate Variability (HRV) and SpO2, and it explores their potential to characterize desaturating and non-desaturating events. The HRV-based features include spectral, cepstral, and nonlinear information (Detrended Fluctuation Analysis (DFA) and Recurrence Quantification Analysis (RQA)). SpO2-based features include temporal (variance) and spectral information. The features feed a Linear Discriminant Analysis (LDA) classifier. The goal is to evaluate the effect of using these features either individually or in combination, especially in non-desaturating patients. The main results for the detection of apneic events are: (a) Physionet success rate of 96.19%, sensitivity of 95.74% and specificity of 95.25% (Area Under Curve (AUC): 0.99); (b) HuGCDN2014-OXI of 87.32%, 83.81% and 88.55% (AUC: 0.934), respectively. The best results for the global diagnosis of OSA patients (HuGCDN2014-OXI) are: success rate of 95.74%, sensitivity of 100%, and specificity of 89.47%. We conclude that combining both features is the most accurate option, especially when there are non-desaturating patterns among the recordings under study.
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Affiliation(s)
- Sofía Martín-González
- Institute for Technological Development and Innovation in Communications, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain
| | - Antonio G Ravelo-García
- Institute for Technological Development and Innovation in Communications, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain
- Interactive Technologies Institute (ITI/LARSyS and ARDITI), 9020-105 Funchal, Portugal
| | - Juan L Navarro-Mesa
- Institute for Technological Development and Innovation in Communications, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain
| | - Eduardo Hernández-Pérez
- Institute for Technological Development and Innovation in Communications, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain
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Lin CC, Wang YP, Sun YK, Chiu CH, Lin MW, Tzeng IS. Mitochondrial replication, transcription, and function in obstructive sleep apnea. Respir Physiol Neurobiol 2023:104066. [PMID: 37080370 DOI: 10.1016/j.resp.2023.104066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/31/2023] [Accepted: 04/17/2023] [Indexed: 04/22/2023]
Abstract
We assessed mitochondrial replication, transcription, and function in the upper airways of obstructive sleep apnea (OSA) patients and the effects of uvulopalatopharyngoplasty. Twenty subjects with mild and 40 with moderate to severe OSA requiring uvulopalatopharyngoplasty were included. Mitochondrial transcription factor A (TFAM) and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) in uvula specimens were assessed by immunohistochemical staining, and their mRNA and protein expression was examined using reverse-transcription polymerase chain reaction and western blotting, respectively. The mitochondrial to nuclear DNA (Mt/N) ratio in the blood, exhaled breath condensate (EBC), and uvula was measured using quantitative reverse-transcription polymerase chain reaction. TFAM and PGC-1α protein concentrations in the plasma and EBC were determined using enzyme-linked immunosorbent assay. All tested parameters were higher in the OSA group than in the control. Three months later, 21 uvulopalatopharyngoplasty-responsive patients with OSA showed decreased TFAM and PGC-1α concentrations and EBC Mt/N ratio while these remained high in 19 uvulopalatopharyngoplasty-unresponsive patients. The OSA group showed severe inflammation, increased mitochondrial replication and transcription-related signaling, and mitochondrial dysfunction in the uvula. Successful OSA treatment using uvulopalatopharyngoplasty restored the TFAM and PGC-1α levels and EBC Mt/N ratio.
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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, Taiwan.
| | - Ying-Piao Wang
- Department of Otolaryngology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yi-Kun Sun
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Chung-Hsin Chiu
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Mei-Wei Lin
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - I-Shiang Tzeng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
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Molecular Pathology, Oxidative Stress, and Biomarkers in Obstructive Sleep Apnea. Int J Mol Sci 2023; 24:ijms24065478. [PMID: 36982552 PMCID: PMC10058074 DOI: 10.3390/ijms24065478] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 03/18/2023] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) is characterized by intermittent hypoxia (IH) during sleep due to recurrent upper airway obstruction. The derived oxidative stress (OS) leads to complications that do not only concern the sleep-wake rhythm but also systemic dysfunctions. The aim of this narrative literature review is to investigate molecular alterations, diagnostic markers, and potential medical therapies for OSAS. We analyzed the literature and synthesized the evidence collected. IH increases oxygen free radicals (ROS) and reduces antioxidant capacities. OS and metabolic alterations lead OSAS patients to undergo endothelial dysfunction, osteoporosis, systemic inflammation, increased cardiovascular risk, pulmonary remodeling, and neurological alterations. We treated molecular alterations known to date as useful for understanding the pathogenetic mechanisms and for their potential application as diagnostic markers. The most promising pharmacological therapies are those based on N-acetylcysteine (NAC), Vitamin C, Leptin, Dronabinol, or Atomoxetine + Oxybutynin, but all require further experimentation. CPAP remains the approved therapy capable of reversing most of the known molecular alterations; future drugs may be useful in treating the remaining dysfunctions.
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Rha MS, Jeong Y, Alyahya KA, Yoon JH, Kim CH, Cho HJ. Comparison of clinical features and surgical outcomes between hypopnea- and apnea-predominant obstructive sleep apnea. Clin Otolaryngol 2023; 48:167-174. [PMID: 36321192 DOI: 10.1111/coa.13998] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 08/16/2022] [Accepted: 10/16/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVES This study is aimed to investigate the differences in the clinical features and surgical outcomes between hypopnea- and apnea-predominant obstructive sleep apnea (OSA). DESIGN Cohort study. SETTING Single tertiary care centre. PARTICIPANTS This study included 190 patients with OSA who underwent multilevel upper airway surgery between September 2012 and September 2021. The patients were divided into two groups according to the proportion of each respiratory event: hypopnea-predominant (n = 102) and apnea-predominant (n = 88). MAIN OUTCOME MEASURES The primary outcome measure was the percentage improvement in the apnea-hypopnea index (AHI) from baseline AHI after surgery. RESULTS The apnea-predominant group included more male patients and had higher AHI, respiratory disturbance index (RDI) and oxygen desaturation index (ODI) than the hypopnea-predominant group. Both groups showed significant improvements in AHI, apnea index, RDI, supine AHI, REM AHI, non-REM AHI, ODI, lowest O2 saturation and Epworth Sleepiness Scale scores following the surgery. Notably, hypopnea index increased after surgery in the apnea-predominant OSA group. Although the improvement in the absolute value of AHI by surgery was significantly greater in the apnea-predominant group than in the hypopnea-predominant group, the two groups showed no significant difference in the percentage improvement in AHI from baseline AHI. CONCLUSION Patients with apnea-predominant OSA had more severe disease than those with hypopnea-predominant OSA; however, surgical outcomes, as evaluated by percentage AHI improvement, were comparable between the two groups. In addition, multilevel upper airway surgery may induce the transition from apnea to hypopnea in patients with apnea-predominant OSA.
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Affiliation(s)
- Min-Seok Rha
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yeonsu Jeong
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Khalid A Alyahya
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Surgery, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Joo-Heon Yoon
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Severance Hospital, Seoul, Republic of Korea.,The Korea Mouse Sensory Phenotyping Center, Yonsei University College of Medicine, Seoul, Republic of Korea.,Global Research Laboratory for Allergic Airway Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chang-Hoon Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Severance Hospital, Seoul, Republic of Korea.,The Korea Mouse Sensory Phenotyping Center, Yonsei University College of Medicine, Seoul, Republic of Korea.,Taste Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyung-Ju Cho
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Severance Hospital, Seoul, Republic of Korea.,The Korea Mouse Sensory Phenotyping Center, Yonsei University College of Medicine, Seoul, Republic of Korea
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Dong N, Liu WY. Regulatory mechanism of downregulation of SOD1 expression on cardiomyocyte function. Sleep Breath 2023; 27:399-410. [PMID: 35307768 DOI: 10.1007/s11325-022-02595-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Many diseases are clinically related to oxidative stress. Obstructive sleep apnea (OSA) is a common disease with oxidative stress in clinical practice, which is mostly associated with cardio-cerebrovascular diseases. It has been shown that the level of oxidative stress increases and the level of antioxidant copper zinc superoxide dismutase (SOD1) decreases in intermittent hypoxia (IH). SOD1 is one of the key antioxidant enzymes in organisms, and it can also be used as a signal transmission controller. Its abnormal expression further affects organ functions, but the specific mechanism is not yet fully clear. METHODS We downregulated the SOD1 gene in H9C2 cell line, using high-throughput RNA sequencing (RNA-seq) to find differentially expressed genes (DEGs) related to cardiomyocyte function by using GO and KEGG databases to annotate, enrich and analyze the metabolic pathways of DEGs. RESULTS Through the analysis of these functional gene changes, we can understand the regulation of SOD1 downregulation on cardiomyocyte function. The results found 213 DEGs, of which 135 genes were upregulated and 78 genes were downregulated. The upregulated DEGs were mainly enriched in biological processes such as transcriptional regulation and metabolism. The expression levels of EGR1 and NR1D1 exceeded 1 in the samples. EGR1 was reported to be involved in oxidative stress and cardiac hypertrophy, and NR1D1 played an important regulatory role in regulating inflammatory responses and reducing ROS production. The biological processes involved in downregulated DEGs mainly involve metabolism and redox processes. Among them, SCD1 and CCL2 genes were highly expressed among the genes involved in the redox process involved in SOD1. SCD1 is an important player in the regulation of cardiometabolic processes; downregulation of CCL2 reduces atherosclerosis. We found that the TNF signaling pathway, NOD-like receptor signaling pathway, and chemokine signaling pathway, which were enriched in KEGG analysis, were all associated with inflammation, and the CXCL1 and CCL7 genes are all related to inflammation. CONCLUSION The gene and signaling pathways involved in oxidative stress and inflammatory response process regulated by SOD1 were demonstrated. SOD1 may affect the function of the heart by affecting myocardial contraction, inflammation, lipid metabolism, and other pathways. It is inferred that they may also play a role in the process of OSA-related myocardial injury, which is worthy of attention and further study.
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Affiliation(s)
- Na Dong
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, China.,Department of Respiratory and Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Wei-Ying Liu
- Department of Respiratory and Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou, 730000, Gansu, China.
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35
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Rha MS, Jeong Y, Kim CH, Yoon JH, Cho HJ. Clinical Characteristics and Surgical Outcomes of Obstructive Sleep Apnea Patients With Mixed Apnea Components. Otolaryngol Head Neck Surg 2023; 168:521-527. [PMID: 35671146 DOI: 10.1177/01945998221103800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/21/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE This study was aimed to investigate clinical implications of mixed apnea (MA) in patients with obstructive sleep apnea (OSA), particularly whether surgical outcomes differ between OSA patients with and without MA events. STUDY DESIGN Retrospective cohort study. SETTING Single tertiary medical center. METHODS Eighty-eight patients with OSA who underwent multilevel upper airway surgery were included. Patients were divided into 2 groups according to the presence of MA events: "pure group" (n = 30) and "mixed group" (n = 58). The clinical characteristics and surgical outcomes were compared between the 2 groups. RESULTS The mixed group included more males (P = .020) and hypertensive patients (P = .009) and had a higher apnea-hypopnea index (AHI; P < .001) than the pure group. The surgical success rate was lower in the mixed group (29.3%) than in the pure group (73.3%; P < .001). Furthermore, the postoperative improvements in total AHI (P < .001), supine AHI (P < .001), and oxygen desaturation index (P = .006) were lower in the mixed group than in the pure group. Logistic regression analysis confirmed that the presence of MA (P = .002) was an independent predictor of poor surgical outcomes in patients with OSA. CONCLUSION OSA patients with MA showed different clinical features and poor surgical outcomes compared to those without MA. These results imply that OSA with MA components may have a distinct pathophysiology, and the presence of MA should be considered in the surgical treatment of OSA.
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Affiliation(s)
- Min-Seok Rha
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yeonsu Jeong
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chang-Hoon Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
- The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- The Korea Mouse Phenotyping Center, Yonsei University College of Medicine, Seoul, Republic of Korea
- Taste Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joo-Heon Yoon
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
- The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- The Korea Mouse Phenotyping Center, Yonsei University College of Medicine, Seoul, Republic of Korea
- Global Research Laboratory for Allergic Airway Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyung-Ju Cho
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
- The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- The Korea Mouse Phenotyping Center, Yonsei University College of Medicine, Seoul, Republic of Korea
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36
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De Felice M, Germelli L, Piccarducci R, Da Pozzo E, Giacomelli C, Baccaglini-Frank A, Martini C. Intermittent hypoxia treatments cause cellular priming in human microglia. J Cell Mol Med 2023; 27:819-830. [PMID: 36824025 PMCID: PMC10002911 DOI: 10.1111/jcmm.17682] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 12/11/2022] [Accepted: 01/06/2023] [Indexed: 02/25/2023] Open
Abstract
Obstructive sleep apnoea syndrome (OSAS) is a sleep-disordered breathing characterized by nocturnal collapses of the upper airway resulting in cycles of blood oxygen partial pressure oscillations, which lead to tissue and cell damage due to intermittent hypoxia (IH) episodes. Since OSAS-derived IH may lead to cognitive impairment through not fully cleared mechanisms, herein we developed a new in vitro model mimicking IH conditions to shed light on its molecular effects on microglial cells, with particular attention to the inflammatory response. The in vitro model was set-up and validated by measuring the hypoxic state, HIF-1α levels, oxidative stress by ROS production and mitochondrial activity by MTS assay. Then, the mRNA and protein levels of certain inflammatory markers (NF-κB and interleukin 6 (IL-6)) after different IH treatment protocols were investigated. The IH treatments followed by a normoxic period were not able to produce a high inflammatory state in human microglial cells. Nevertheless, microglia appeared to be in a state characterized by increased expression of NF-κB and markers related to a primed phenotype. The microglia exposed to IH cycles and stimulated with exogenous IL-1β resulted in an exaggerated inflammatory response with increased NF-κB and IL-6 expression, suggesting a role for primed microglia in OSAS-driven neuroinflammation.
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Jin S, Ding X, Guo D, Qin Y, Zhu W, Zhao Z, Guo X, Li Y, Lu X, Cai Q. Subclinical left ventricular myocardial dysfunction in patients with obstructive sleep apnea syndrome: insights from noninvasive left ventricular myocardial work analysis. BMC Cardiovasc Disord 2022; 22:552. [PMID: 36536274 PMCID: PMC9761973 DOI: 10.1186/s12872-022-03006-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Obstructive sleep apnea syndrome (OSAS) is associated with various cardiovascular diseases and has aroused public concern. Early detection for declining myocardial function is of great significance. This study was aimed at noninvasively evaluating the subclinical left ventricular (LV) myocardial dysfunction with LV pressure-strain loop (PSL) in patients with OSAS having normal LV ejection fraction. METHODS We enrolled 200 patients with OSAS who visited the Beijing Chaoyang Hospital between February 2021 and December 2021. According to the apnea-hypopnea index (AHI), patients were divided into mild, moderate, and severe groups. The global longitudinal strain (GLS) of the left ventricle was analyzed by two-dimensional speckle tracking echocardiography. The LV PSL was used to assess global work index (GWI), global constructive work (GCW), global waste work (GWW), and global work efficiency (GWE), and comparisons were made among groups. RESULTS GLS was significantly lower in the severe group than in mild and moderate group. GWI, GCW, and GWE were lower in the severe group than in mild and moderate groups. GWW was significantly higher in the severe group than in the mild group. GLS, GWI, and GWE were moderately correlated with AHI (Spearman's ρ = -0.468, -0.321, and -0.319, respectively; P < 0.001), whereas GCW and GWW showed a weak correlation with AHI (Spearman's ρ = -0.226 and 0.255 respectively; P < 0.001). Multiple regression analyses revealed AHI was independently associated with GWI after adjusting for SBP, GLS, e', etc. AHI was independently associated with GCW after adjusting for SBP, GLS, etc. CONCLUSIONS: The LV PSL is a new technique to noninvasively detect myocardial function deterioration in patients with OSAS and preserved LV ejection fraction. Increased severity of OSAS was independent associated with both decreased GWI and GCW.
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Affiliation(s)
- Shan Jin
- grid.24696.3f0000 0004 0369 153XDepartment of Echocardiography, Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020 China
| | - Xueyan Ding
- grid.24696.3f0000 0004 0369 153XDepartment of Echocardiography, Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020 China
| | - Dichen Guo
- grid.24696.3f0000 0004 0369 153XDepartment of Echocardiography, Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020 China
| | - Yunyun Qin
- grid.24696.3f0000 0004 0369 153XDepartment of Echocardiography, Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020 China
| | - Weiwei Zhu
- grid.24696.3f0000 0004 0369 153XDepartment of Echocardiography, Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020 China
| | - Zhiling Zhao
- grid.411607.5Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Xiheng Guo
- grid.411607.5Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Yidan Li
- grid.24696.3f0000 0004 0369 153XDepartment of Echocardiography, Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020 China
| | - Xiuzhang Lu
- grid.24696.3f0000 0004 0369 153XDepartment of Echocardiography, Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020 China
| | - Qizhe Cai
- grid.24696.3f0000 0004 0369 153XDepartment of Echocardiography, Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020 China
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Malhamé I, Bublitz MH, Wilson D, Sanapo L, Rochin E, Bourjeily G. Sleep disordered breathing and the risk of severe maternal morbidity in women with preeclampsia: A population-based study. Pregnancy Hypertens 2022; 30:215-220. [PMID: 36343510 PMCID: PMC9712248 DOI: 10.1016/j.preghy.2022.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 10/13/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Obstructive sleep apnea (OSA) may exacerbate the widespread endothelial dysfunction seen in preeclampsia, potentially worsening clinical outcomes. We aimed to assess whether OSA is associated with an increased risk of severe maternal morbidity, cardiovascular morbidity, and healthcare utilization among women with preeclampsia. STUDY DESIGN We performed a retrospective cohort study utilizing data from the National Perinatal Information Center (2010-2014) in the United States.The cohort comprised women with preeclampsia. We estimated the association between OSA and the outcomes using logistic regression analyses and determined odds ratio adjusted for demographic factors and comorbidities (ORadj) and associated 95% confidence intervals (CI). MAIN OUTCOME MEASURES The primary outcome was a composite of mortality and severe maternal morbidity comprising intensive care unit (ICU) admission, acute renal failure, pulmonary edema, pulmonary embolism, congestive heart failure, cardiomyopathy, and stroke. Secondary outcomes comprised the subset of cardiovascular events, as well as increased healthcare utilization (including Cesarean delivery, preterm birth, ICU admission, and prolonged length of hospital stay). RESULTS In total, 71,159 women had preeclampsia, including 270 (0.4 %) with OSA. Women with preeclampsia and OSA were more likely to experience severe maternal morbidity than women without OSA (ORadj 2.65, 95 % CI [1.94-3.61]). Moreover, women with concomitant OSA had more severe cardiovascular morbidity than women without OSA (ORadj 5.05, 95 % CI [2.28-11.17]). Accordingly, OSA was associated with increased healthcare utilization in women with preeclampsia (ORadj. 2.26, 95 % CI [1.45-3.52]). CONCLUSION In women with preeclampsia, OSA increases the risk for severe maternal morbidity, cardiovascular morbidity, and healthcare utilization.
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Affiliation(s)
- Isabelle Malhamé
- Department of Medicine, McGill University Health Centre, Montreal, Canada; Research Institute of the McGill University Health Centre, Montreal, Canada
| | - Margaret H Bublitz
- Psychiatry and Human Behavior and Medicine, The Miriam Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Danielle Wilson
- Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia
| | - Laura Sanapo
- Psychiatry and Human Behavior and Medicine, The Miriam Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Elizabeth Rochin
- National Perinatal Information Center, Providence, RI, United States
| | - Ghada Bourjeily
- Psychiatry and Human Behavior and Medicine, The Miriam Hospital, Warren Alpert Medical School of Brown University, Providence, RI, United States.
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Advances in Molecular Pathology of Obstructive Sleep Apnea. Molecules 2022; 27:molecules27238422. [PMID: 36500515 PMCID: PMC9739159 DOI: 10.3390/molecules27238422] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022] Open
Abstract
Obstructive sleep apnea (OSA) is a common syndrome that features a complex etiology and set of mechanisms. Here we summarized the molecular pathogenesis of OSA, especially the prospective mechanism of upper? airway dilator fatigue and the current breakthroughs. Additionally, we also introduced the molecular mechanism of OSA in terms of related studies on the main signaling pathways and epigenetics alterations, such as microRNA, long non-coding RNA, and DNA methylation. We also reviewed small molecular compounds, which are potential targets for gene regulations in the future, that are involved in the regulation of OSA. This review will be beneficial to point the way for OSA research within the next decade.
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Yang C, Zhou Y, Liu H, Xu P. The Role of Inflammation in Cognitive Impairment of Obstructive Sleep Apnea Syndrome. Brain Sci 2022; 12:brainsci12101303. [PMID: 36291237 PMCID: PMC9599901 DOI: 10.3390/brainsci12101303] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) has become a major worldwide public health concern, given its global prevalence. It has clear links with multiple comorbidities and mortality. Cognitive impairment is one related comorbidity causing great pressure on individuals and society. The clinical manifestations of cognitive impairment in OSAS include decline in attention/vigilance, verbal–visual memory loss, visuospatial/structural ability impairment, and executive dysfunction. It has been proven that chronic intermittent hypoxia (CIH) may be a main cause of cognitive impairment in OSAS. Inflammation plays important roles in CIH-induced cognitive dysfunction. Furthermore, the nuclear factor kappa B and hypoxia-inducible factor 1 alpha pathways play significant roles in this inflammatory mechanism. Continuous positive airway pressure is an effective therapy for OSAS; however, its effect on cognitive impairment is suboptimal. Therefore, in this review, we address the role inflammation plays in the development of neuro-impairment in OSAS and the association between OSAS and cognitive impairment to provide an overview of its pathophysiology. We believe that furthering the understanding of the inflammatory mechanisms involved in OSAS-associated cognitive impairment could lead to the development of appropriate and effective therapy.
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Mohammadi A, Higazy R, Gauda EB. PGC-1α activity and mitochondrial dysfunction in preterm infants. Front Physiol 2022; 13:997619. [PMID: 36225305 PMCID: PMC9548560 DOI: 10.3389/fphys.2022.997619] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/09/2022] [Indexed: 11/26/2022] Open
Abstract
Extremely low gestational age neonates (ELGANs) are born in a relatively hyperoxic environment with weak antioxidant defenses, placing them at high risk for mitochondrial dysfunction affecting multiple organ systems including the nervous, respiratory, ocular, and gastrointestinal systems. The brain and lungs are highly affected by mitochondrial dysfunction and dysregulation in the neonate, causing white matter injury (WMI) and bronchopulmonary dysplasia (BPD), respectively. Adequate mitochondrial function is important in providing sufficient energy for organ development as it relates to alveolarization and axonal myelination and decreasing oxidative stress via reactive oxygen species (ROS) and reactive nitrogen species (RNS) detoxification. Peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) is a master regulator of mitochondrial biogenesis and function. Since mitochondrial dysfunction is at the root of WMI and BPD pathobiology, exploring therapies that can regulate PGC-1α activity may be beneficial. This review article describes several promising therapeutic agents that can mitigate mitochondrial dysfunction through direct and indirect activation and upregulation of the PGC-1α pathway. Metformin, resveratrol, omega 3 fatty acids, montelukast, L-citrulline, and adiponectin are promising candidates that require further pre-clinical and clinical studies to understand their efficacy in decreasing the burden of disease from WMI and BPD in preterm infants.
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Affiliation(s)
- Atefeh Mohammadi
- The Hospital for Sick Children, Division of Neonatology, Department of Pediatrics and Translational Medicine Program, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Randa Higazy
- The Hospital for Sick Children, Division of Neonatology, Department of Pediatrics and Translational Medicine Program, Toronto, ON, Canada
| | - Estelle B. Gauda
- The Hospital for Sick Children, Division of Neonatology, Department of Pediatrics and Translational Medicine Program, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- *Correspondence: Estelle B. Gauda,
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Mecenas P, Miranda GHN, Fagundes NCF, Normando D, Ribeiro KCF. Effects of oral appliances on serum cytokines in adults with obstructive sleep apnea: a systematic review. Sleep Breath 2022; 26:1447-1458. [PMID: 34482502 DOI: 10.1007/s11325-021-02485-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/07/2021] [Accepted: 08/27/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE This review aimed to evaluate the effects of oral appliance (OA) therapy on serum inflammatory cytokines in adults diagnosed with obstructive sleep apnea (OSA). METHODS Seven electronic databases and partial gray literature were searched without restrictions through March 2021. Articles evaluating the levels of serum inflammatory cytokines in patients with OSA after OA treatment were included. The risk of bias (RoB) was assessed using the before-and-after tool or RoB 2.0. The level of certainty was assessed using the GRADE tool. RESULTS Five studies met the eligibility criteria. One was a randomized clinical trial (RCT), while four were non-randomized clinical trials (NRCTs). Among the studies, C-reactive protein (CRP), IL-6, IL-10, IL-1β, and tumor necrosis factor α (TNF-α) were investigated. The RCT reported no significant differences in marker levels after 2 months of OA therapy, while the NRCTs showed improvement on CRP, TNF-α, and IL-1β levels after longer follow-up periods. The RoB was evaluated as showing some concern in the RCT. Three NRCTs presented good RoB, and one showed a fair RoB. The level of certainty was graded as moderate quality for inflammatory marker levels assessed in the RCT The levels of certainty evaluated in NRCTs were classified as very low. CONCLUSIONS Although limited, existing scientific evidence showed that OA therapy may improve serum cytokine levels in adults with OSA. However, short treatment periods are not effective in reducing markers of systemic inflammation which may require extended time and a decrease of in apneic events to improve.
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Affiliation(s)
- Paulo Mecenas
- Department of Orthodontics, Faculdade Integrada Brasil Amazônia (FIBRA), Belém, Pará, Brazil.
| | | | | | - David Normando
- Faculty of Dentistry, Federal University of Pará (UFPA), Belém, Pará, Brazil
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Hong YL, Shen YC, Chang ET, Kung SC. Continuous positive airway pressure improved daytime sleepiness and memory function in patients with obstructive sleep apnea. Tzu Chi Med J 2022; 35:84-88. [PMID: 36866346 PMCID: PMC9972931 DOI: 10.4103/tcmj.tcmj_4_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/21/2022] [Accepted: 04/01/2022] [Indexed: 01/05/2023] Open
Abstract
Objectives Obstructive sleep apnea (OSA) is a sleep disorder which results in daytime sleepiness and impaired memory function. The aim of this study was to investigate the effect of continuous positive airway pressure (CPAP) on daytime sleepiness and memory function in OSA patients. We also investigated whether CPAP compliance impacted the effect of this treatment. Materials and Methods The nonrandomized, nonblinded clinical trial enrolled 66 patients with moderate-to-severe OSA subjects. All subjects completed a polysomnographic study, daytime sleepiness questionnaires (the Epworth Sleepiness Scale and the Pittsburgh Sleep Quality Index), and four memory function tests (working memory; processing speed [PS]; logical memory [LM]; face memory [FM]). Results Before CPAP treatment, no significant differences (P < 0.05) were noted in the demographic data, daytime sleepiness, or memory function between two groups (with/without CPAP). However, OSA patients treated with CPAP for 2 months showed significant improvements in daytime sleepiness, PS, mostly of LM, and FM comparing to 2 months ago. As compared to those who did not receive CPAP treatment, CPAP can improve only parts of LM (delayed LM [DLM] and LM percentage [LMP]). In addition, compared to control group, a significant improvement of daytime sleepiness and LM (LM learning, DLM, and LMP) in good compliance with CPAP treatment group and of DLM and LMP in the low compliance with CPAP treatment group was found. Conclusion CPAP treatment for 2 months could improve some of LM in OSA patients, especially in patients exhibiting good CPAP compliance.
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Affiliation(s)
- Ya-Ling Hong
- Speak to the Heart Combined Clinics, Tainan, Taiwan,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Yu-Chih Shen
- School of Medicine, Tzu Chi University, Hualien, Taiwan,Department of Psychiatry, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - En-Ting Chang
- School of Medicine, Tzu Chi University, Hualien, Taiwan,Department of Chest Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan,Address for correspondence: Dr. En-Ting Chang, Department of Chest Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 707, Section 3, Chung-Yang Road, Hualien, Taiwan. E-mail:
| | - Shu-Chin Kung
- School of Medicine, Tzu Chi University, Hualien, Taiwan
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Liew SM, Chowdhury EK, Ernst ME, Gilmartin‐Thomas J, Reid CM, Tonkin A, Neumann J, McNeil JJ, Kaye DM. Prescribed opioid use is associated with adverse cardiovascular outcomes in community-dwelling older persons. ESC Heart Fail 2022; 9:3973-3984. [PMID: 35985663 PMCID: PMC9773735 DOI: 10.1002/ehf2.14101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 06/13/2022] [Accepted: 07/19/2022] [Indexed: 01/19/2023] Open
Abstract
AIMS Prescribed opioids are commonly used in the older community-dwelling population for the treatment of chronic pain. Although the harmful effects of opioid abuse and overdose are well understood, little is known about the long-term cardiovascular (CV) effects of prescribed opioids. The aim of this study was to investigate the CV effects associated with prescribed opioid use. METHODS AND RESULTS A post hoc analysis of participants in the Aspirin in Reducing Events in the Elderly (ASPREE) trial was conducted. Participants in the ASPREE trial included community-dwelling older adults without a prior history of CV disease (CVD). Prescribed opioid use was defined as opioid use at baseline and/or at the first annual visit (AV1). Cox proportional hazards regression was used to calculate hazard ratios and 95% confidence intervals (95% CI) for associations between opioid use and CVD events following AV1. Of the 17 701 participants included (mean age 75.2 years, 58.2% female), 813 took opioids either at baseline or at AV1. Over a median follow-up period of 3.58 years (IQR 2.50-4.62), CVD events, most notably heart failure hospitalization, occurred in 7% (n = 57) amongst opioid users and 4% (n = 680) amongst non-opioid users. After adjustment for multiple covariates, opiate use was associated with a 1.67-fold (CI 1.26-2.23, P < 0.001) increase in the hazard ratio for CVD events. CONCLUSIONS These findings identify opioid use as a non-traditional risk factor for CVD events in community-dwelling older adults.
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Affiliation(s)
- Stephanie M. Liew
- Cardiology DepartmentAlfred HospitalMelbourneVICAustralia,Department of CardiologyUniversity Hospital GeelongGeelongVICAustralia
| | - Enayet K. Chowdhury
- Department of Epidemiology and Preventive MedicineMonash UniversityMelbourneVICAustralia
| | - Michael E. Ernst
- Department of Pharmacy Practice and Science, College of Pharmacy and Department of Family Medicine, Carver College of MedicineThe University of IowaIowa CityIAUSA
| | - Julia Gilmartin‐Thomas
- Department of Epidemiology and Preventive MedicineMonash UniversityMelbourneVICAustralia
| | - Christopher M. Reid
- Department of Epidemiology and Preventive MedicineMonash UniversityMelbourneVICAustralia,School of Population HealthCurtin UniversityPerthWAAustralia
| | - Andrew Tonkin
- Department of Epidemiology and Preventive MedicineMonash UniversityMelbourneVICAustralia,Department of CardiologyAustin HealthMelbourneVICAustralia
| | - Johannes Neumann
- Department of Epidemiology and Preventive MedicineMonash UniversityMelbourneVICAustralia,Department of CardiologyUniversity Medical Centre HamburgHamburgGermany
| | - John J. McNeil
- Department of Epidemiology and Preventive MedicineMonash UniversityMelbourneVICAustralia
| | - David M. Kaye
- Cardiology DepartmentAlfred HospitalMelbourneVICAustralia,Department of CardiologyUniversity Medical Centre HamburgHamburgGermany,Baker Heart and Diabetes InstituteMelbourneAustralia
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Romero D, Jane R. Detecting Obstructive Apnea Episodes using Dynamic Bayesian Networks and ECG-based Time-Series. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2022; 2022:3273-3276. [PMID: 36085676 DOI: 10.1109/embc48229.2022.9870930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this study, we proposed an automatic detector for obstructive apnea episodes using only ECG-based time-series from a single-ECG channel. Several obstructive apnea episodes were provoked for different separated sequences of 15 minutes in anesthetized Sprague-Dawley rats. In this recurrent obstructive sleep apnea (OSA) model, each episode lasted 15s, while the number of total events per sequence was randomly selected. The beat-to-beat interval ( RR) and the R-wave amplitude ( Ra) time-series were extracted and processed for each sequence, and used to train Dynamic Bayesian Networks with different lags. An optimal trade-off between the lag ( L) and RMSE values was considered to select the best model to be used when detecting apnea episodes. The selected models were then used to estimate the occurrence probability of apnea episodes, p(At), by using a filtering approach. Finally, the time-series of the estimated probabilities were post-processed using non-overlapped 15-s epochs, to determine whether they are classified as apneic or non-apneic segments. Results showed that those lagged models with orders greater than 5, presented suitable RMSE values and become more sensitive as the order increased. A detection threshold of 0.2 seems to provide the best apnea detection performance overall, with Acc=0.81, Se=0.83 and Sp=0.79, using two ECG parameters and L=10. Clinical relevance- Dynamic Bayesian Networks represent a powerful tool to develop personalized models for apnea detection and diagnosis in OSA patients.
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Drummond SE, Burns DP, Maghrani SE, Ziegler O, Healy V, O'Halloran KD. NADPH oxidase-2 is necessary for chronic intermittent hypoxia-induced sternohyoid muscle weakness in adult male mice. Exp Physiol 2022; 107:946-964. [PMID: 35728802 PMCID: PMC9542769 DOI: 10.1113/ep090536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/13/2022] [Indexed: 11/14/2022]
Abstract
New Findings What is the central question of this study? Exposure to chronic intermittent hypoxia (CIH) evokes redox changes, culminating in impaired upper airway muscle function: what is the specific source of CIH‐induced reactive oxygen species? What is the main finding and its importance? Profound sternohyoid muscle dysfunction following exposure to CIH was entirely prevented by apocynin co‐treatment or NADPH oxidase 2 (NOX2) deletion. The results have implications for human obstructive sleep apnoea syndrome and point to antioxidant intervention, potentially targeting NOX2 blockade, as a therapeutic strategy.
Abstract Exposure to chronic intermittent hypoxia (CIH) evokes redox changes, culminating in impaired upper airway muscle function. We sought to determine if NADPH oxidase 2 (NOX2)‐derived reactive oxygen species underpin CIH‐induced maladaptive changes in upper airway (sternohyoid) muscle performance. Adult male mice (C57BL/6J) were assigned to one of three groups: normoxic controls (sham); CIH‐exposed (CIH, 12 cycles/hour, 8 h/day for 14 days); and CIH + apocynin (NOX2 inhibitor, 2 mM) given in the drinking water throughout exposure to CIH. In addition, we studied sham and CIH‐exposed NOX2‐null mice (B6.129S‐CybbTM1Din/J). Profound sternohyoid muscle dysfunction following exposure to CIH was entirely prevented by apocynin co‐treatment or NOX2 deletion. Exposure to CIH increased sternohyoid muscle NOX enzyme activity, with no alteration to the gene or protein expression of NOX subunits. There was no evidence of overt oxidative stress, muscle regeneration, inflammation or atrophy following exposure to CIH. We suggest that NOX‐dependent CIH‐induced upper airway muscle weakness increases vulnerability to upper airway obstruction. Our results have implications for human obstructive sleep apnoea syndrome and point to antioxidant intervention, potentially targeting NOX2 blockade, as a therapeutic strategy.
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Affiliation(s)
- Sarah E Drummond
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - David P Burns
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Sarah El Maghrani
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Oscar Ziegler
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Vincent Healy
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Ken D O'Halloran
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
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Effects of Long-Term Exposure to High Altitude Hypoxia on Cognitive Function and Its Mechanism: A Narrative Review. Brain Sci 2022; 12:brainsci12060808. [PMID: 35741693 PMCID: PMC9221409 DOI: 10.3390/brainsci12060808] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 01/27/2023] Open
Abstract
Cognitive function is affected by low pressure and hypoxia in high-altitude environments, and is regulated by altitude and exposure time. With the economic development in the Qinghai-Tibet Plateau, the increase in work and study activities, as well as the development of plateau tourism, mountaineering, and other activities, the number of plateau immigrants is increasing daily. Long-term hypoxia challenges human physical and mental health, restricts work efficiency, and thus affects plateau economic development and human wellbeing. Therefore, it is of scientific and social significance to study how long-term exposure to the hypoxic plateau environment affects the physical and mental health of lowlanders as part of the ongoing development of the current plateau region. In this paper, we reviewed the research progress and mechanism of the effects of long-term (≥1 year) high-altitude (>2500 m) hypoxia exposure on the cognitive function of lowlanders, and suggested that the scope and sample size of the research should be expanded in the future, and that follow-up studies should be carried out to explore the time threshold of cognitive impairment and its compensatory or repair mechanism.
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Li X, Wang X, Li W, Wang W. Increased carotid intima-media thickness is independently associated with the occurrence of depressive disorders in patients with obstructive sleep apnea without cardiocerebrovascular disease. J Psychiatr Res 2022; 150:122-129. [PMID: 35367656 DOI: 10.1016/j.jpsychires.2022.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 02/16/2022] [Accepted: 03/24/2022] [Indexed: 11/19/2022]
Abstract
STUDY OBJECTIVES This study aimed to explore the relationship between carotid intima-media thickness (cIMT) and depression in patients with obstructive sleep apnea (OSA) without cardiocerebrovascular diseases. METHODS This study evaluated self-rating depression scale (SDS) scores, night sleep, and cIMT in 114 patients with OSA without cardiocerebrovascular diseases. RESULTS Among the 114 patients, 79.8% were male (mean age: 46.7 ± 11.58 years; range: 22-72 years). Moreover, 46.5%, 44.7%, and 7.89% of the patients presented with depressive disorders (8, 24, and 21 with severe, moderate, and mild degrees of depression, respectively), cIMT increase, and carotid plaques, respectively. Logistic regression with adjustment for age, sex, and other confounding factors revealed that, compared with patients with OSA without depressive disorders, those with depressive disorders had higher cIMT (odds ratio [OR] = 1.839; 95% confidence interval [CI]: 1.210-2.795), D-value (the difference between nocturnal mean blood oxygen saturation and the lowest blood oxygen saturation; OR = 1.434; 95% CI: 1.259-1.633]), and time spent at O2 saturation below 90% (OR = 1.060; 95% CI: 1.001-1.123). CONCLUSIONS cIMT and D-value are independently associated with depression in patients with OSA, which provides clinical evidence regarding the involvement of vascular damage in OSA-induced depression.
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Affiliation(s)
- Xiaomeng Li
- Institute of Respiratory Disease, The First Hospital of China Medical University, Shenyang, China
| | - Xingjian Wang
- Institute of Respiratory Disease, The First Hospital of China Medical University, Shenyang, China
| | - Wenyang Li
- Institute of Respiratory Disease, The First Hospital of China Medical University, Shenyang, China
| | - Wei Wang
- Institute of Respiratory Disease, The First Hospital of China Medical University, Shenyang, China.
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Odai T, Terauchi M, Umeki H, Miyasaka N, Somekawa Y. Sleep apnea in postmenopausal women is associated with joint pain severity and fatigability: a cross-sectional study. Menopause 2022; 29:680-686. [PMID: 35231006 DOI: 10.1097/gme.0000000000001974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE This study aimed to investigate the relationships between sleep apnea parameters and various symptoms in postmenopausal women who had treatment-resistant sleep disorders. METHODS The respiratory disturbance index (RDI), the number of times apnea-hypopnea occurred in an hour, and transcutaneous oxygen saturation (SpO2) were monitored during one night of sleep using a portable monitoring device in 51 postmenopausal women who did not have an improved subjective sleep quality with the use of hypnotics. Physical and psychological health statuses and subjective sleep disturbance were evaluated using validated questionnaires, including the Epworth Sleepiness Scale, the Cornell Medical Index, and the Questionnaire for Assessment of Climacteric Syndrome in Japanese Women. The associations between RDI, nadir SpO2 and various symptoms, as well as cardiovascular parameters, such as blood pressure, serum lipid profile, and glucose tolerance, were analyzed separately. RESULTS Among the 51 study participants, seven (13.7%) were diagnosed with obstructive sleep apnea. After adjustment for age, body mass index, and the background factors related to RDI and nadir SpO2, the association remained significant between a higher RDI and joint pain (Questionnaire for Assessment of Climacteric Syndrome in Japanese Women) (standardized partial regression coefficient [β] = 0.423, P = 0.016), and between lower nadir SpO2 and fatigability (Cornell Medical Index) (β = -0.472, P = 0.007). CONCLUSIONS Detailed examination of sleep-disordered breathing is warranted in women with severe joint pain and fatigability.
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Affiliation(s)
- Tamami Odai
- From the Department of Women's Health, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo, Tokyo 113-8510, Japan
| | - Masakazu Terauchi
- From the Department of Women's Health, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo, Tokyo 113-8510, Japan
| | - Hidenori Umeki
- Depart-Department of Obstetrics and Gynecology, JA Toride Medical Center, Hongo 2-1-1, Toride, Ibaraki 302-0022, Japan
| | - Naoyuki Miyasaka
- Department of Obstetrics and Gynecology, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo, Tokyo 113-8510, Japan
| | - Yoshiaki Somekawa
- Depart-Department of Obstetrics and Gynecology, JA Toride Medical Center, Hongo 2-1-1, Toride, Ibaraki 302-0022, Japan
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A Review of the Associations Between Obstructive Sleep Apnea and Gestational Diabetes Mellitus and Possible Mechanisms of Disease. Reprod Sci 2022; 30:81-92. [PMID: 35257355 PMCID: PMC9810675 DOI: 10.1007/s43032-022-00904-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 02/25/2022] [Indexed: 01/07/2023]
Abstract
Obstructive sleep apnea (OSA) usually leads to the occurrence of diabetes. Gestational diabetes mellitus (GDM) is a common gestational complication associated with adverse maternal and fetal outcomes. Increasing studies suggest that women with OSA during pregnancy may be at a significantly greater risk of developing GDM. It is crucial to explore the association between OSA and GDM and the mechanisms underlying this association. In this review, we presented a comprehensive literature review of the following: the association between OSA and GDM, the possible mechanisms of this association, and the effects of continuous positive airway pressure (CPAP) on OSA with GDM. The results showed that most authors suggested that there was an association between OSA and GDM. The intermittent hypoxemia (IH) and reduction of slow-wave sleep (SWS) may be the key to this association. IH induces the products of oxidative stress and inflammation as well as dysregulation of the hypothalamic-pituitary-adrenal, which lead to diabetes. In addition, SWS reduction in OSA enhances the inflammation by increasing the inflammatory cytokines, increases the sympathetic activation, and causes changes in leptin level, which result in the development of GDM. Additionally, whether CPAP is beneficial to GDM remains still unclear.
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