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sleep apnea and inflammation

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https://www.readbyqxmd.com/read/28437280/inhibition-of-rho-kinase-attenuates-left-ventricular-remodeling-caused-by-chronic-intermittent-hypoxia-in-rats-via-suppressing-myocardial-inflammation-and-apoptosis
#1
Zhi-Hua Wang, Die Zhu, Sheng Xie, Yan Deng, Yueying Pan, Jie Ren, Hui-Guo Liu
Chronic intermittent hypoxia (CIH), the hallmark of obstructive sleep apnea syndrome (OSAS), has been reported to play a key role in the development of OSAS-associated cardiovascular diseases including cardiac remodeling. RhoA/Rho-kinase (ROCK) pathway has also been implicated in myocardial remodeling, but the exact mechanisms are not fully elucidated. The current study's purpose is to investigate the influence of fasudil, a selective ROCK inhibitor, on CIH-induced left ventricular remodeling in rats and its possible mechanisms...
April 18, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28432036/increased-inflammation-from-childhood-to-adolescence-predicts-sleep-apnea-in-boys-a-preliminary-study
#2
Jordan Gaines, Alexandros N Vgontzas, Julio Fernandez-Mendoza, Fan He, Susan L Calhoun, Duanping Liao, Edward O Bixler
While chronic systemic inflammation in obstructive sleep apnea (OSA) has been traditionally considered a consequence of intermittent hypoxia, several treatment studies targeting inflammation suggest that this process may precede the development of the disorder. A recent cross-sectional study in the Penn State Child Cohort (PSCC) revealed that inflammation largely mediates the association between visceral adiposity and OSA in adolescence. The purpose of this study was to examine for the first time whether, longitudinally, inflammation precedes OSA during this developmental period...
April 18, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28429349/association-between-the-severity-of-newly-diagnosed-obstructive-sleep-apnea-and-subclinical-carotid-atherosclerosis-in-patients-without-overt-cardiovascular-disease
#3
K Theodoropoulos, D Lykouras, K Karkoulias, D Damania, K Leou, O Lagiou, O A Meelu, A Rigopoulou, G D Dangas, G Hahalis, K Spiropoulos, I Starakis
OBJECTIVE: Obstructive Sleep Apnea (OSA) has been associated with both subclinical and accelerated atherosclerosis; however, it still remains unknown whether this association is unique or is mediated by the higher burden of co-existing cardio-metabolic disorders frequently seen in patients with OSA. PATIENTS AND METHODS: A total of 40 subjects without clinically diagnosed cardiovascular disease (CVD) referred for polysomnography test were included in the study. Subjects with apnea/hypopnea index (AHI > 15/h) were classified as moderate/severe OSA...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28425583/sleep-apnea-syndrome-inflammation-and-oxidative-stress-in-hemodialysis-patients
#4
Olga Nikitidou, Euphemia Daskalopoulou, Aikaterini Papagianni, Vassilios Liakopoulos, Aikaterini Michalaki, Foteini Christidou, Paraskevi Argyropoulou, Dimitrios Kirmizis, Georgios Efstratiadis, Pavlos Nikolaidis, Michail Daniilidis, Nicholas Dombros
INTRODUCTION: Sleep apnea syndrome (SAS) is an established cardiovascular risk factor in the general population related to inflammation and oxidative stress and is very common among hemodialysis patients. Cardiovascular disease and its complications is the main cause of death among hemodialysis patients. The aim of the present study was to investigate the role of SAS in the promotion of inflammation and oxidative stress and thus in the augmentation of cardiovascular risk in hemodialysis patients...
April 20, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28408965/phospholipase-c-related-catalytically-inactive-protein-can-regulate-obesity-a-state-of-peripheral-inflammation
#5
REVIEW
Yosuke Yamawaki, Kana Oue, Satomi Shirawachi, Satoshi Asano, Kae Harada, Takashi Kanematsu
Obesity is defined as abnormal or excessive fat accumulation. Chronic inflammation in fat influences the development of obesity-related diseases. Many reports state that obesity increases the risk of morbidity in many diseases, including hypertension, dyslipidemia, type 2 diabetes, coronary heart disease, stroke, sleep apnea, and breast, prostate and colon cancers, leading to increased mortality. Obesity is also associated with chronic neuropathologic conditions such as depression and Alzheimer's disease. However, there is strong evidence that weight loss reduces these risks, by limiting blood pressure and improving levels of serum triglycerides, total cholesterol, low-density lipoprotein (LDL)-cholesterol, and high-density lipoprotein (HDL)-cholesterol...
February 2017: Japanese Dental Science Review
https://www.readbyqxmd.com/read/28408829/sleep-apnea-and-the-subsequent-risk-of-parkinson-s-disease-a-3-year-nationwide-population-based-study
#6
Ping-Song Chou, Chiou-Lian Lai, Yii-Her Chou, Wei-Pin Chang
PURPOSE: Sleep apnea (SA)-induced chronic intermittent hypoxia increases oxidative stress and inflammation, which may contribute to the pathophysiology of Parkinson's disease (PD). This study evaluated the risk of PD following SA diagnosis. PATIENTS AND METHODS: This was a 3-year nationwide population-based matched cohort study using claims data from the National Health Insurance Research Database (NHIRD), Taiwan. We analyzed 1,944 patients diagnosed as having SA between 1997 and 2005 and a matched cohort of 9,720 non-SA patients from the NHIRD...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28364485/objective-but-not-subjective-sleepiness-is-associated-with-inflammation-in-sleep-apnea
#7
Yun Li, Alexandros N Vgontzas, Julio Fernandez-Mendoza, Ilia Kritikou, Maria Basta, Slobodanka Pejovic, Jordan Gaines, Edward O Bixler
Study objectives: Objective and subjective measures of excessive daytime sleepiness (EDS) are only weakly associated. No study, however, has examined whether these two measures of EDS differ in terms of underlying mechanisms and prognostic value. Pro-inflammatory cytokines, that is, interleukin-6 (IL-6) appear to promote sleepiness/fatigue, while the stress hormone cortisol promotes vigilance. We hypothesized that objective sleepiness is associated with increased levels of IL-6 and decreased levels of cortisol...
February 1, 2017: Sleep
https://www.readbyqxmd.com/read/28364466/chronic-kidney-disease-and-sleep-apnea-association-of-kidney-disease-with-obstructive-sleep-apnea-in-a-population-study-of-men
#8
Robert J Adams, Sarah L Appleton, Andrew Vakulin, Patrick J Hanly, Stephen P McDonald, Sean A Martin, Carol J Lang, Anne W Taylor, R Doug McEvoy, Nick A Antic, Peter G Catcheside, Andrew D Vincent, Gary A Wittert
Study Objectives: To determine the relationship between obstructive sleep apnea (OSA) and chronic kidney disease (CKD). Previous population studies of the association are sparse, conflicting and confined largely to studies of administrative data. Methods: Cross-sectional analysis in unselected participants of the Men Androgens Inflammation Lifestyle Environment and Stress (MAILES) study, aged >40 years. Renal data were available for 812 men without a prior OSA diagnosis who underwent full in-home polysomnography (Embletta X100) in 2010-2011...
January 1, 2017: Sleep
https://www.readbyqxmd.com/read/28362475/the-genetic-basis-of-obesity-complications
#9
Katarzyna Skrypnik, Joanna Suliburska, Damian Skrypnik, Łukasz Pilarski, Julita Reguła, Paweł Bogdański
Intensive research is currently being performed into the genetic background of excess body mass compli- cations such as diabetes, cardiovascular disorders, especially atherosclerosis and coronary heart disease. Chronic inflammation is an important process in the pathogenesis of obesity, wherein there is an aberrant ex- pression of genes encoding adipokines. Visceral tissue is characterized by a higher expression and secretion of interleukin-8, interleukin-1ß and plasminogen activator inhibitor 1 in the subcutaneous tissue secretion of leptin prevails...
January 2017: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28345811/importance-of-laboratory-parameters-in-patients-with-obstructive-sleep-apnea-and-their-relationship-with-cardiovascular-diseases
#10
Tulay Kıvanc, Sevsen Kulaksızoglu, Huseyin Lakadamyalı, Fusun Eyuboglu
BACKGROUND: Ostructive sleep apnea (OSA) is an independent risk factor for the development of cardiovascular events. Platelet activation and inflammation are the mechanisms involved in the association between OSA and cardiovascular disease (CVD). The markers of platelet activation and inflammation are the mean platelet volume (MPV), platelet-lymphocyte ratio (PLR), red cell distribution width (RDW), neutrophil- lymphocyte ratio (NLR). We aimed to define the association of NLR, PLR, RDW, and MPV with the severity of disease and the presence of CVD...
March 27, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28345782/red-cell-distribution-width-as-a-novel-predictor-of-postoperative-respiratory-adverse-events-after-adenotonsillectomy
#11
Betul Kozanhan, Mehmet S Iyisoy
BACKGROUND: Respiratory adverse events are commonly observed after adenotonsillectomy in children with sleep-disordered breathing. Preoperative prediction of these events enhances quality of care and resource management in facilities while encouraging precautions against them. Red cell distribution width, a measure of erythrocyte size variability, has recently been linked to adverse outcomes in a variety of disorders. Red cell distribution width has also been found to be associated with severity of obstructive sleep apnea in adults due to hypoxia-mediated inflammation...
March 27, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28329220/prolonged-exposures-to-intermittent-hypoxia-promote-visceral-white-adipose-tissue-inflammation-in-a-murine-model-of-severe-sleep-apnea-effect-of-normoxic-recovery
#12
Alex Gileles-Hillel, Isaac Almendros, Abdelnaby Khalyfa, Recep Nigdelioglu, Zhuanhong Qiao, Robert B Hamanaka, Gökhan M Mutlu, Mahzad Akbarpour, David Gozal
Study Objective: Increased visceral white adipose tissue (vWAT) mass results in infiltration of inflammatory macrophages that drive inflammation and insulin resistance. Patients with obstructive sleep apnea (OSA) suffer from increased prevalence of obesity, insulin resistance, and metabolic syndrome. Murine models of intermittent hypoxia (IH) mimicking moderate-severe OSA manifest insulin resistance following short-term IH. We examined in mice the effect of long-term IH on the inflammatory cellular changes within vWAT and the potential effect of normoxic recovery (IH-R)...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28328850/measurement-of-exhaled-nitric-oxide-concentration-in-patients-with-obstructive-sleep-apnea-a-meta-analysis
#13
Dongmei Zhang, Jinmei Luo, Yixian Qiao, Yi Xiao, Rong Huang, Xu Zhong
BACKGROUND: Exhaled nitric oxide (eNO) has been proposed as a noninvasive measure of airway inflammation. However, its value in patients with obstructive sleep apnea (OSA) is still controversial. The authors aim to assess the difference in eNO levels between patients with OSA and controls by a meta-analysis. METHODS: A systematic search was performed in the PubMed, EMBASE, the Cochrane Library, and MEDLINE databases to collect relevant studies published from 1996 to 2016...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28283920/impact-of-bariatric-surgery-on-heme-oxygenase-1-inflammation-and-insulin-resistance-in-morbid-obesity-with-obstructive-sleep-apnea
#14
Raquel Tirado, Maria José Masdeu, Laura Vigil, Mercedes Rigla, Alexis Luna, Pere Rebasa, Rocío Pareja, Marta Hurtado, Assumpta Caixàs
INTRODUCTION: Morbid obesity and obstructive sleep apnea (OSA) interact at an inflammatory level. Bariatric surgery reduces inflammatory responses associated with obesity. Heme oxygenase-1 (HO-1) is an enzyme with anti-inflammatory properties, which might be increased in morbid obesity or OSA. We studied morbidly obese patients with OSA to determine: (a) HO-1 plasma concentrations according to OSA severity and their relationship with insulin resistance and inflammation and (b) the impact of bariatric surgery on HO-1 and parameters of insulin resistance and inflammation...
March 10, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28271327/hypoxia-and-inflammation-indicate-significant-differences-in-the-severity-of-obstructive-sleep-apnea-within-similar-apnea-hypopnea-index-groups
#15
Aynur Yilmaz Avci, Suat Avci, Huseyin Lakadamyali, Ufuk Can
PURPOSE: We determined whether hypoxia parameters are associated with C-reactive protein (CRP), mean platelet volume (MPV), white matter hyperintensity (WMH), and the severity of obstructive sleep apnea (OSA), and also evaluated whether hypoxia parameters, CRP, MPV, and WMH differ in patients with similar apnea-hypopnea index (AHI) scores. METHODS: A total of 297 patients, who were evaluated using polysomnography, were assessed retrospectively. The measured hypoxia parameters included total sleep time with oxygen saturation <90% (ST90), percentage of cumulative time with oxygen saturation <90% (CT90), and lowest oxygen saturation (min SaO2)...
March 7, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28240319/aorta-macrophage-inflammatory-and-epigenetic-changes-in-a-murine-model-of-obstructive-sleep-apnea-potential-role-of-cd36
#16
Rene Cortese, Alex Gileles-Hillel, Abdelnaby Khalyfa, Isaac Almendros, Mahzad Akbarpour, Ahamed A Khalyfa, Zhuanghong Qiao, Tzintzuni Garcia, Jorge Andrade, David Gozal
Obstructive sleep apnea (OSA) affects 8-10% of the population, is characterized by chronic intermittent hypoxia (CIH), and causally associates with cardiovascular morbidities. In CIH-exposed mice, closely mimicking the chronicity of human OSA, increased accumulation and proliferation of pro-inflammatory metabolic M1-like macrophages highly expressing CD36, emerged in aorta. Transcriptomic and MeDIP-seq approaches identified activation of pro-atherogenic pathways involving a complex interplay of histone modifications in functionally-relevant biological pathways, such as inflammation and oxidative stress in aorta macrophages...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28218579/effect-of-obstructive-sleep-apnea-on-carotid-artery-intima-media-thickness-related-to-inflammation
#17
Delei Kong, Zheng Qin, Wei Wang, Jian Kang
PURPOSE: Obstructive sleep apnea hypopnea syndrome (OSAHS) is an independent risk factor for atherosclerosis. To ascertain the effect of OSAHS on the development of atherosclerosis in Chinese OSAHS patients, we evaluated markers of atherosclerosis as well as vascular endothelial function and inflammation. METHODS: Chinese men with polysomnography-diagnosed OSAHS were subgrouped into mild-moderate (n = 28) and severe (n = 54) OSAHS groups on the basis of apnea hypopnea index (AHI) scores...
February 19, 2017: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/28207497/concurrent-presence-of-inflammation-and-obstructive-sleep-apnea-exacerbates-the-risk-of-metabolic-syndrome-a-koges-6-year-follow-up-study
#18
Jinkwan Kim, Dae Wui Yoon, Seung Ku Lee, Seunggwan Lee, Kyung-Mee Choi, Thomas J Robert, Chol Shin
Obstructive sleep apnea (OSA) leads to multiple end-organ morbidities that are mediated by the cumulative burden of oxidative stress and inflammation. Both OSA and inflammation play key roles in increased risk of cardiovascular disease (CVD). Thus, we hypothesized that the combination of inflammation and OSA could accelerate the development of metabolic syndrome (MetS) in a large cohort study.A total of 1835 participants were randomly selected from the ongoing Korean Genome and Epidemiology Study for the years between 2007 and 2015...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28177762/chronic-intermittent-hypoxia-disturbs-insulin-secretion-and-causes-pancreatic-injury-via-mapk-signaling-pathway
#19
Yeying Wang, Bing Hai, Xiaoqun Niu, Li Ai, Yu Cao, Ran Li, Yongxia Li
Obstructive sleep apnea (OSA) is a breath disorder during sleep with a most prominent character of chronic intermittent hypoxia (CIH), inducing the generation of reactive oxygen species (ROS) to damage multiple tissues and cause metabolism disorders. In this study, we established rat varying OSA model by graded concentration of CIH (12.5% O2, 10% O2, 7.5%O2 and 5% O2) for 12 weeks, and found that CIH stimulated insulin secretion, reduced the insulin/proinsulin ratio in the pancreatic tissue, and caused pancreatic tissue lesions and cells apoptosis in a dose-dependent manner...
November 28, 2016: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28162008/clinical-implications-of-understanding-the-association-between-oxidative-stress-and-pediatric-nafld
#20
Jake P Mann, Massimiliano Raponi, Valerio Nobili
Oxidative stress is central to the pathogenesis of non-alcoholic steatohepatitis. The reactive oxygen species (ROS) that characterise oxidative stress are generated in several cellular sites and their production is influence by multi-organ interactions. Areas covered: Mitochondrial dysfunction is the main source of ROS in fatty liver and is closely related to endoplasmic reticulum stress. Both are caused by lipotoxicity and together these three factors form a cycle of progressive organelle damage, resulting in sterile inflammation and apoptosis...
April 2017: Expert Review of Gastroenterology & Hepatology
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