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sleep apnea and inflammation

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https://www.readbyqxmd.com/read/29617910/sleep-characteristics-and-inflammatory-biomarkers-among-midlife-women
#1
Sara Nowakowski, Karen A Matthews, Roland von Känel, Martica H Hall, Rebecca C Thurston
Study Objectives: Research suggests that sleep disturbances are associated with elevated levels of inflammation. Some evidence indicates that women may be particularly vulnerable; increased levels of inflammatory biomarkers with sleep disturbances are primarily observed among women. Midlife, which encompasses the menopause transition, is typically reported as a time of poor sleep. We tested whether poorer objectively measured sleep characteristics were related to a poorer inflammatory profile in midlife women...
March 30, 2018: Sleep
https://www.readbyqxmd.com/read/29609563/the-association-between-circulating-adiponectin-levels-lung-function-and-adiposity-in-subjects-from-the-general-population-data-from-the-akershus-sleep-apnea-project
#2
Nina F Caspersen, Helge Røsjø, Allan Flyvbjerg, Mette Bjerre, Anna Randby, Harald Hrubos-Strøm, Torbjørn Omland, Gunnar Einvik
BACKGROUND: Circulating adiponectin (ADPN) levels are inversely associated with disease severity in patients with chronic obstructive pulmonary disease (COPD), while studies assessing the relationship between ADPN and lung function in subjects from the general population have shown diverging results. Accordingly, we hypothesized that ADPN would be associated with lung function in a population-based sample and tested how abdominal adiposity, metabolic syndrome, and systemic inflammation influenced this association...
April 2, 2018: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29550481/protective-effect-of-sphingosine-1-phosphate-for-chronic-intermittent-hypoxia-induced-endothelial-cell-injury
#3
Fu-Chao Yu, Chu-Xiao Yuan, Jia-Yi Tong, Guang-Hao Zhang, Fang-Ping Zhou, Fang Yang
Intermittent hypoxia (IH) induced by obstructive sleep apnea (OSA) is the key factor in oxidative stress and the concomitant inflammation of endothelial cells (ECs). In recent years, the lipid sphingosine-1-phosphate (S1P) has been reported to probably play a central role in inflammatory diseases. However, its role in IH-induced endothelial injury remains uncertain. In this study, we investigated the IH-induced ECs inflammation and apoptosis, as well as the role of S1P in both. First, human umbilical vein endothelial cells (HUVECs) were treated with IH to explore the mechanism of S1P and S1P microbubbles (S1P-MBs) in HUVECs with altered function...
April 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29548648/genetic-factors-in-sleep-disordered-breathing
#4
REVIEW
Kiminobu Tanizawa, Kazuo Chin
Sleep-disordered breathing (SDB) is characterized by repetitive episodes of decreased or arrested respiratory airflow during sleep. SDB is common and affects approximately 20% of the Japanese general population. Most traits of normal sleep and SDB show familial aggregation, suggesting significant effects of genetic factors. Obstructive sleep apnea (OSA) is the most common type of SDB and has a high heritability. Regardless of high heritability, no risk locus for OSA has reached a genome-wide level of significance (P < 5×10-8 ) in linkage or candidate gene analysis...
March 2018: Respiratory Investigation
https://www.readbyqxmd.com/read/29508121/assessment-of-atherosclerotic-plaque-activity-in-patients-with-sleep-apnea-using-hybrid-positron-emission-tomography-magnetic-resonance-imaging-pet-mri-a-feasibility-study
#5
Vaishnavi Kundel, Maria Giovanna Trivieri, Nicolas A Karakatsanis, Phillip M Robson, Venkatesh Mani, Jorge R Kizer, Robert Kaplan, Zahi Fayad, Neomi Shah
PURPOSE: Evidence suggests that the inflammatory state of an atherosclerotic plaque is important in predicting future risk of plaque rupture. This study aims to investigate the feasibility of measuring plaque inflammation in patients with obstructive sleep apnea (OSA) utilizing advanced vascular imaging - hybrid positron-emission tomography/magnetic resonance imaging (PET/MRI) with fluorodeoxyglucose (FDG) tracer-before and after continuous positive airway pressure (CPAP). METHODS: Patients with newly diagnosed moderate to severe OSA underwent baseline PET/MRI for assessment of vascular inflammation of the carotid arteries and thoracic aorta prior to initiation of CPAP...
March 5, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29504461/state-of-the-science-using-telomeres-as-biomarkers-during-the-first-1-000-days-of-life
#6
Sarah Oerther, Rebecca Lorenz
Telomere biology shows promise as an integrative biomarker of exposures and increased occurrence of chronic disease and early mortality. This integrative review examined the state of the science regarding toxicokinetic risks and maternal factors in humans and in vivo models that are correlated with telomere length during the first 1,000 days of life. The Preferred Reporting Items of Systematic Reviews and Meta-Analyses framework assisted in guiding this integrative by aiding researchers in identifying, selecting, and critically appraising the literature...
March 1, 2018: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/29493039/complement-system-activation-in-obstructive-sleep-apnea
#7
Peter Horvath, David L Tarnoki, Adam D Tarnoki, Kinga Karlinger, Zsofia Lazar, Gyorgy Losonczy, Laszlo Kunos, Andras Bikov
The complement system may play a role in the systemic inflammation characterising obstructive sleep apnea; however, this has not been investigated before. We aimed to study the involvement of effector complement elements in obstructive sleep apnea, namely C3a, C5a and SC5b-9. Venous blood was collected in 50 patients with obstructive sleep apnea and 26 control subjects in the evening and the following morning. Plasma complement proteins were analysed with ELISA. Complement factor levels were compared between the two groups and correlated with clinical variables...
March 1, 2018: Journal of Sleep Research
https://www.readbyqxmd.com/read/29482817/elevated-tau-and-interleukin-6-concentrations-in-adults-with-obstructive-sleep-apnea
#8
Vida Motamedi, Rebekah Kanefsky, Panagiotis Matsangas, Sara Mithani, Andreas Jeromin, Matthew S Brock, Vincent Mysliwiec, Jessica Gill
Obstructive sleep apnea (OSA) is characterized by apneas and hypopneas that result in hypoxia, cerebral hypoperfusion, endothelial dysfunction, inflammation, and oxidative stress. These pathophysiologic processes likely contribute to neuronal damage. Tau is a protein that stabilizes microtubules and, along with amyloid beta (Aβ), is associated with neurodegenerative processes. We sought to determine if tau and other biomarkers of inflammation were related to OSA severity. Concentrations of tau, Aβ40, Aβ42, c-reactive protein (CRP), TNF-α, interleukin (IL)-6, and IL-10 were measured in blood and compared between participants with moderate-severe OSA (n = 28), those with mild OSA (n = 22), and healthy controls (n = 24)...
March 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29476303/antero-cervical-thermophysiological-characterization-of-obstructive-sleep-apnea-patients
#9
Mariana Jarnalo, Ricardo Vardasca, Joaquim Gabriel Mendes, Marta Drummond
PURPOSE: Obstructive sleep apnea syndrome (OSAS) is characterized by upper airway inflammation. The aim of this study was to characterize thermal profile of the antero-cervical region in OSAS patients through medical thermal imaging and to compare the respective subjects with non-OSAS individuals. METHODS: Image capture followed the Glamorgan Protocol. A dynamic thermographic examination of the anterior cervical region (at baseline and after a cold stimulus) was conducted in 26 patients diagnosed with overnight polysomnography (PSG)...
February 23, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29475915/reduced-peripheral-blood-mononuclear-cell-rock1-and-rock2-levels-in-obstructive-sleep-apnea-syndrome
#10
Şenay Aydin, Cengiz Özdemir, Cem Ismail Küçükali, Sinem Nedime Sökücü, Murat Giriş, Uğur Akcan, Erdem Tüzün
BACKGROUND/AIM: Obstructive sleep apnea syndrome (OSAS) is associated with intermittent episodes of hypoxia, endothelial dysfunction and associated cardiovascular problems. Our aim was to investigate whether OSAS-related hypoxia alters the expression of rho-associated protein kinase (ROCK), a marker of chronic hypoxia and endothelial dysfunction. MATERIALS AND METHODS: ROCK1 and ROCK2 levels were measured by immunoblotting in peripheral blood mononuclear cells (PBMC) of 47 OSAS patients and 17 healthy controls...
March 2018: In Vivo
https://www.readbyqxmd.com/read/29461689/clinical-associations-between-allergies-and-rapid-eye-movement-sleep-disturbances
#11
Shelley R Berson, Jaclyn Klimczak, Elizabeth A Prezio, Shirley Hu, Manoj Abraham
BACKGROUND: Allergic rhinitis, an immunoglobulin E inflammatory condition including nasal congestion, obstruction, sneezing, pruritus, and fatigue symptoms, has significant impact on quality of life and impairs sleep. Sleep-disordered breathing (SDB) patients often have normal all-night apnea-hypopnea (AHI) or respiratory-disturbance (RDI) indices on polysomnography (PSG). We hypothesized that the rapid eye motion-respiratory disturbance index (REM-RDI) may be a novel predictor of allergic status...
February 20, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29453637/cough-hypersensitivity-in-patients-with-obstructive-sleep-apnea-hypopnea-syndrome
#12
Cuiqin Shi, Siwei Liang, Xianghuai Xu, Qiang Chen, Lan Wang, Li Yu, Hanjing Lv, Zhongmin Qiu
PURPOSE: The purpose of this study was to investigate cough hypersensitivity and its potential mechanisms in patients with obstructive sleep apnea hypopnea syndrome (OSAHS). METHODS: Fifteen OSAHS patients, 12 simple snoring patients, and 15 healthy volunteers received cough sensitivity test and induced sputum cytology. Cough thresholds C2 and C5 (the minimum of capsaicin inducing ≥ 2 and ≥ 5 coughs, respectively), total cell count, cell differentials and the levels of bradykinin, histamine, prostaglandin E2 , substance P, calcitonin gene-related peptide, pepsin, and interleukin-2 in the induced sputum detected by enzyme-linked immunosorbent assay were compared...
February 16, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29441807/alterations-of-igf-1-complement-c3-and-superoxide-dismutase-in-patients-with-moderate-to-severe-obstructive-sleep-apnea-hypopnea-syndrome
#13
Xiao Wang, Yufeng Wang, Zechuan Cai, Xiaoxia Lu, Zhenxing Li, Yun Chen, Guoliang Zu, Taoping Li
AIM: To evaluate various biomarkers of metabolism, immunity and inflammation in obstructive sleep apnea hypopnea syndrome (OSAHS). MATERIALS & METHODS: After overnight polysomnography, blood was collected from 292 OSAHS patients or healthy volunteers. Serum content of inflammatory, immune, metabolic biomarkers were investigated. In addition, the effects of 1-month continuous positive airway pressure (CPAP) were studied in moderate/severe OSAHS. RESULTS: C3, serum total complement activity, superoxide dismutase, uric acid were significantly higher in moderate/severe OSAHS than that in no/mild OSAHS...
February 14, 2018: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29433520/intermittent-hypoxia-promotes-melanoma-lung-metastasis-via-oxidative-stress-and-inflammation-responses-in-a-mouse-model-of-obstructive-sleep-apnea
#14
Lian Li, Fangyuan Ren, Chao Qi, Leiqian Xu, Yinshan Fang, Maoli Liang, Jing Feng, Baoyuan Chen, Wen Ning, Jie Cao
BACKGROUND: Recently, increased tumor incidence and cancer-related mortality have been reported among patients with obstructive sleep apnea (OSA). Intermittent hypoxia (IH), the hallmark feature of OSA, contributes to the metastasis of tumors. However, the molecular mechanisms by which tumor metastasis is accelerated by OSA-like IH remain to be elucidated. METHODS: C57BL/6 J male mice were subjected to intravenous injection of B16F10 melanoma cells before receiving IH treatment...
February 12, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29417392/neutrophil-to-lymphocyte-ratio-decreases-in-obstructive-sleep-apnea-treated-with-mandibular-advancement-devices
#15
Moh'd Al-Halawani, Sreelatha Naik, Michael Chan, Iouri Kreinin, Jonathan Meiers, Meir Kryger
PURPOSE: Obstructive sleep apnea has been associated with chronic inflammation triggered by nocturnal hypoxemia. The neutrophil-to-lymphocyte ratio (NLR) is a measure of subclinical systemic inflammation. We hypothesize that NLR levels would improve as chronic inflammation diminishes in obstructive sleep apnea (OSA) patients treated with mandibular advancement devices (MADs). METHODS: We studied patients with OSA who were treated with MAD as a first-line treatment or because they could not tolerate CPAP...
February 7, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29404462/intermittent-hypoxia-is-a-proinflammatory-stimulus-resulting-in-il-6-expression-and-m1-macrophage-polarization
#16
Esperance Schaefer, Winona Wu, Christina Mark, Andrew Yang, Erik DiGiacomo, Charles Carlton-Smith, Shadi Salloum, Cynthia Brisac, Wenyu Lin, Kathleen E Corey, Raymond T Chung
The biological factors that promote inflammation or nonalcoholic steatohepatitis (NASH) in the setting of nonalcoholic fatty liver disease remain incompletely understood. Clinical studies have demonstrated an association between obstructive sleep apnea (OSA) and both inflammation and fibrosis in NASH, but the mechanism has not been identified. In this study, we use in vitro modeling to examine the impact of intermittent hypoxia on the liver. Hepatocyte, stellate cell, and macrophage cell lines were exposed to intermittent or sustained hypoxia...
June 2017: Hepatology Communications
https://www.readbyqxmd.com/read/29403430/altered-regional-brain-cortical-thickness-in-pediatric-obstructive-sleep-apnea
#17
Paul M Macey, Leila Kheirandish-Gozal, Janani P Prasad, Richard A Ma, Rajesh Kumar, Mona F Philby, David Gozal
Rationale: Obstructive sleep apnea (OSA) affects 2-5% of all children and is associated with cognitive and behavioral deficits, resulting in poor school performance. These psychological deficits may arise from brain injury, as seen in preliminary findings of lower gray matter volume among pediatric OSA patients. However, the psychological deficits in OSA are closely related to functions in the cortex, and such brain areas have not been specifically assessed. The objective was to determine whether cortical thickness, a marker of possible brain injury, is altered in children with OSA...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29394961/effects-of-coexisting-asthma-and-obstructive-sleep-apnea-on-sleep-architecture-oxygen-saturation-and-systemic-inflammation-in-women
#18
Fredrik Sundbom, Christer Janson, Andrei Malinovschi, Eva Lindberg
STUDY OBJECTIVES: Both asthma and obstructive sleep apnea (OSA) are strongly associated with poor sleep. Asthma and OSA also have several features in common, including airway obstruction, systemic inflammation, and an association with obesity. The aim was to analyze the effect of asthma, OSA, and the combination of asthma and OSA on objectively measured sleep quality and systemic inflammation. METHODS: Sleep and health in women is an ongoing community-based study in Uppsala, Sweden...
February 15, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29371201/nonmuscle-myosin-light-chain-kinase-a-key-player-in-intermittent-hypoxia-induced-vascular-alterations
#19
Claire Arnaud, Sophie Bouyon, Sylvain Recoquillon, Sandrine Brasseur, Emeline Lemarié, Anne Briançon-Marjollet, Brigitte Gonthier, Marta Toral, Gilles Faury, M Carmen Martinez, Ramaroson Andriantsitohaina, Jean-Louis Pepin
BACKGROUND: Obstructive sleep apnea is characterized by repetitive pharyngeal collapses during sleep, leading to intermittent hypoxia (IH), the main contributor of obstructive sleep apnea-related cardiovascular morbidity. In patients and rodents with obstructive sleep apnea exposed to IH, vascular inflammation and remodeling, endothelial dysfunction, and circulating inflammatory markers are linked with IH severity. The nonmuscle myosin light chain kinase (nmMLCK) isoform contributes to vascular inflammation and oxidative stress in different cardiovascular and inflammatory diseases...
January 25, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29335916/association-between-obstructive-sleep-apnea-and-non-alcoholic-fatty-liver-disease-a-systematic-review-and-meta-analysis
#20
REVIEW
Shanshan Jin, Suwen Jiang, Airong Hu
The relationship between obstructive sleep apnea (OSA) and non-alcoholic fatty liver disease (NAFLD) has been an issue of great concern. The primary purpose of this study was to determine the influence of OSA on the levels of liver enzymes including alanine transaminase (ALT) and aspartate transaminase (AST). The secondary purpose was to estimate the effect of OSA on the histological lesions of NAFLD, such as steatosis, lobular inflammation, ballooning degeneration, fibrosis, as well as NAFLD activity score (NAS)...
January 15, 2018: Sleep & Breathing, Schlaf & Atmung
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