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https://www.readbyqxmd.com/read/28526258/sleep-duration-and-the-associated-cardiometabolic-risk-scores-in-adults
#1
Thirumagal Kanagasabai, Jean-Philippe Chaput
OBJECTIVES: To identify the sleep duration associated with the lowest cardiometabolic risk score in adults and to determine if the association varies by subgroups (eg, sex, age groups, ethnicity, and smoking status). DESIGN: Cross-sectional data from the 2005-2012 National Health and Nutrition Examination Survey. SETTING: Non-institutionalized civil sample from the United States. PARTICIPANTS: Age ≥20 y (N=8827) with sleep and cardiometabolic health data...
June 2017: Sleep Health
https://www.readbyqxmd.com/read/28515112/impact-of-the-metabolic-syndrome-on-mortality-is-modified-by-objective-short-sleep-duration
#2
Julio Fernandez-Mendoza, Fan He, Caitlin LaGrotte, Alexandros N Vgontzas, Duanping Liao, Edward O Bixler
BACKGROUND: To examine whether objective sleep duration is an effect modifier of the impact of metabolic syndrome (MetS) on all-cause and cardiovascular disease/cerebrovascular mortality. METHODS AND RESULTS: We addressed this question in the Penn State Adult Cohort, a random, general population sample of 1344 men and women (48.8±14.2 years) who were studied in the sleep laboratory and followed up for 16.6±4.2 years. MetS was defined by the presence of 3 or more of obesity (≥30 kg/m(2)), elevated total cholesterol (≥200 mg/dL), triglycerides (≥150 mg/dL), fasting glucose (≥100 mg/dL), and blood pressure (≥130/85 mm Hg)...
May 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28420470/-explore-objective-clinical-variables-for-detecting-delirium-in-icu-patients-a-prospective-case-control-study
#3
Xiaojiang Liu, Jie Lyu, Youzhong An
OBJECTIVE: The aim of this case-control study is to explore clinical objective variables for diagnosing delirium of intensive care unit (ICU) patients. METHODS: According to the method of prospective case-control study, critical adult postoperative patients who were transferred to ICU of Peking University People's Hospital from October 2015 to May 2016 and needed mechanical ventilation were included. After evaluating the Richmond agitation sedation scale score (RASS), the patients whose score were -2 or greater were sorted into two groups, delirium and non-delirium, according to the confusion assessment method for the ICU (CAM-ICU)...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28366323/effect-of-continuous-positive-airway-pressure-on-regional-cerebral-blood-flow-in-patients-with-severe-obstructive-sleep-apnea-syndrome
#4
Jeong Sik Kim, Ji Hye Seo, Mi-Ri Kang, Min Jae Seong, Won Gu Lee, Eun Yeon Joo, Seung Bong Hong
OBJECTIVES: Obstructive sleep apnea (OSA) is commonly associated with neural and cognitive deficits induced by recurrent hypoxemia and sleep fragment. The aims of this study were to use statistical parametric mapping (SPM) to analyze changes in regional cerebral blood flow (rCBF) in untreated patients with severe OSA before and after nasal continuous positive airway pressure (CPAP) treatment, examine the impact of OSA-related variables on rCBF, and assess the therapeutic effect of nasal CPAP treatment...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28364457/sleep-wake-concordance-in-couples-is-inversely-associated-with-cardiovascular-disease-risk-markers
#5
Heather E Gunn, Daniel J Buysse, Karen A Matthews, Christopher E Kline, Matthew R Cribbet, Wendy M Troxel
Aim: To determine whether interdependence in couples' sleep (sleep-wake concordance i.e., whether couples are awake or asleep at the same time throughout the night) is associated with two markers of cardiovascular disease (CVD) risk, ambulatory blood pressure (BP) and systemic inflammation. Methods: This community-based study is a cross-sectional analysis of 46 adult couples, aged 18-45 years, without known sleep disorders. Percent sleep-wake concordance, the independent variable, was calculated for each individual using actigraphy...
January 1, 2017: Sleep
https://www.readbyqxmd.com/read/28359656/in-center-nocturnal-hemodialysis-versus-conventional-hemodialysis-a-systematic-review-of-the-evidence
#6
Ben Wong, David Collister, Maliha Muneer, Dale Storie, Mark Courtney, Anita Lloyd, Sandra Campbell, Robert P Pauly
BACKGROUND: Owing to its longer treatment duration-up to 8 hours per dialysis treatment-in-center thrice-weekly nocturnal hemodialysis (HD) is receiving greater attention. To better understand the evidence for in-center nocturnal HD, we sought to systematically review the literature to determine the effects of in-center nocturnal HD versus conventional HD on clinically relevant outcomes. STUDY DESIGN: We searched MEDLINE, Embase, Evidence-Based Medicine Reviews (EBMR), Web of Science, and Scopus from the earliest date in the database to November 2016...
March 27, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28346156/association-of-sleep-characteristics-with-cardiovascular-and-metabolic-risk-factors-in-a-population-sample-the-chicago-area-sleep-study
#7
Samantha E Montag, Kristen L Knutson, Phyllis C Zee, Jeffrey J Goldberger, Jason Ng, Kwang-Youn A Kim, Mercedes R Carnethon
OBJECTIVES: To investigate the association of sleep characteristics with prevalent hypertension, diabetes, and obesity in a multiethnic cohort. DESIGN: This study used a population-based cross-sectional study design. SETTING: Participants were recruited between 2009 and 2011 from Chicago, Illinois, and the surrounding suburbs. PARTICIPANTS: Participants were 492 adults aged 35 to 64years who self-reported as white, black, Hispanic, or Asian and who had a low likelihood of sleep apnea based on the apnea screening questionnaires and 1 night of apnea screening using an in-home device (apnea hypopnea index <15 or oxygen desaturation index <10)...
April 2017: Sleep Health
https://www.readbyqxmd.com/read/28325005/dynamic-modeling-of-apnea-induced-concurrent-variations-in-arterial-blood-pressure-and-cerebral-blood-flow-velocity
#8
Raichel Alex, Rong Zhang, Donald E Watenpaugh, Khosrow Behbehani
Obstructive Sleep Apnea (OSA) is characterized by partial (hypopnea) or complete cessation (apnea) of airflow to the lungs during sleep. It has been previously reported that apnea episodes lead to significant rise in instantaneous blood pressure concomitant with a rise in cerebral blood flow velocity, indicating loss of cerebral autoregulation during the episodes. In this study, we have used Auto Regressive Moving Average model (ARMA (na, nb, nk)) to quantify OSA induced dynamic changes in cerebral blood flow velocity (CBFV) with beat to beat blood pressure (BP) as an input...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28281834/association-of-sleep-disordered-breathing-with-diabetes-associated-kidney-disease
#9
Stefan Stadler, Tanja Zimmermann, Franziska Franke, Myriam Rheinberger, Iris M Heid, Carsten A Böger, Michael Arzt
INTRODUCTION: Diabetes-associated kidney disease is characterized by impairment of renal function and albuminuria. The aim of the present study was to assess whether sleep-disordered breathing is associated with decreased estimated glomerular filtration rate or increased urine-albumin-to-creatinine-ratio independently from known modulators of diabetes-associated kidney disease. MATERIAL AND METHODS: Estimated glomerular filtration rate and urine-albumin-to-creatinine-ratio were determined in the baseline survey of the DIACORE-SDB substudy, a prospectively planned study of Diabetes mellitus 2 patients...
March 27, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28275046/self-reported-sleep-disturbance-and-incidence-of-dementia-in-ageing-men
#10
Maria K Luojus, Soili M Lehto, Tommi Tolmunen, Anna-Katharine Brem, Eija Lönnroos, Jussi Kauhanen
BACKGROUND: Sleep disturbance is suggested to contribute to the development of dementia. However, prospective longitudinal data from middle-aged populations are scarce. METHODS: We investigated a population-based sample of 2386 men aged 42-62 years at baseline during 1984-1989. Participants having a history of mental illnesses, psychiatric medication, Parkinson's disease or dementia within 2 years after baseline (n=296) were excluded. Difficulty falling asleep or maintaining sleep, sleep duration and daytime tiredness were enquired...
April 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/28270889/relationships-among-conventional-cardiovascular-risk-factors-and-lifestyle-habits-with-arterial-stiffness-in-type-2-diabetic-patients
#11
Misako Hamamura, Tomoya Mita, Yusuke Osonoi, Takeshi Osonoi, Miyoko Saito, Atsuko Tamasawa, Shiho Nakayama, Yuki Someya, Hidenori Ishida, Masahiko Gosho, Akio Kanazawa, Hirotaka Watada
BACKGROUND: While conventional cardiovascular risk factors and certain lifestyle habits are associated with arterial stiffness in patients with type 2 diabetes mellitus (T2DM), it is still unknown whether they are actually associated with arterial stiffness even after adjustment for conventional cardiovascular risk factors and lifestyle habits. The aim of this study was to identify variables that are associated with brachial-ankle pulse wave velocity (baPWV). METHODS: The study participants comprised 724 Japanese T2DM outpatients free of history of cardiovascular diseases...
April 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28264442/the-risk-of-being-obese-according-to-short-sleep-duration-is-modulated-after-menopause-in-korean-women
#12
Miae Doo, Yangha Kim
We previously reported that women with short sleep duration consumed more dietary carbohydrate and showed an increased risk for obesity compared to those who slept adequately, but not for men. Using a cross-sectional study of 17,841 Korean women, we investigated the influence of sleep duration on obesity-related variables and consumption of dietary carbohydrate-rich foods in relation to menopausal status. Premenopausal women with short sleep duration had significantly greater body weight (p = 0.007), body mass index (p = 0...
February 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28227461/dynamic-modeling-of-apnea-induced-concurrent-variations-in-arterial-blood-pressure-and-cerebral-blood-flow-velocity
#13
Raichel Alex, Rong Zhang, Donald E Watenpaugh, Khosrow Behbehani, Raichel Alex, Rong Zhang, Donald E Watenpaugh, Khosrow Behbehani, Raichel Alex, Rong Zhang, Khosrow Behbehani, Donald E Watenpaugh
Obstructive Sleep Apnea (OSA) is characterized by partial (hypopnea) or complete cessation (apnea) of airflow to the lungs during sleep. It has been previously reported that apnea episodes lead to significant rise in instantaneous blood pressure concomitant with a rise in cerebral blood flow velocity, indicating loss of cerebral autoregulation during the episodes. In this study, we have used Auto Regressive Moving Average model (ARMA (na, nb, nk)) to quantify OSA induced dynamic changes in cerebral blood flow velocity (CBFV) with beat to beat blood pressure (BP) as an input...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28169885/repetitive-exposure-to-shortened-sleep-leads-to-blunted-sleep-associated-blood-pressure-dipping
#14
Huan Yang, Monika Haack, Shiva Gautam, Hans K Meier-Ewert, Janet M Mullington
BACKGROUND: Blood pressure (BP) dips at night during sleep in healthy individuals but in disturbed sleep, dipping is blunted. However, the impact of chronic insufficient sleep duration, with limited intermittent recovery sleep, on BP dipping is not known. The objective of this study was to examine, in a controlled experimental model, the influence of chronic sleep restriction on BP patterns at night and during the day. METHOD: In a highly controlled 22-day in-hospital protocol, 45 healthy participants (age 32 ± 2 years; BMI 24 ± 1 kg/m; 22 men and 23 women) were randomly assigned to one of two conditions: repeated sleep restriction (4 h of sleep/night from 0300 to 0700 h for three nights followed by recovery sleep of 8 h, repeated four times in succession) or a sleep control group (8 h/night from 2300 to 0700 h)...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28109722/sleep-insomnia-and-hypertension-current-findings-and-future-directions
#15
REVIEW
S Justin Thomas, David Calhoun
Blood pressure (BP) varies over 24 hours. During normal sleep, BP typically decreases by 10% or more. Research suggests that disordered sleep, particularly sleep deprivation and obstructive sleep apnea, is associated with increased BP and risk of hypertension. Less is known about the relationship between insomnia and hypertension. Population-based studies have reported an association between insomnia symptoms and both prevalent and incident hypertension, particularly in the context of short sleep duration...
December 29, 2016: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28095965/vamonos-veterans-affairs-metabolism-obstructed-and-non-obstructed-sleep-study-effects-of-cpap-therapy-on-glucose-metabolism-in-patients-with-obstructive-sleep-apnea
#16
Octavian C Ioachimescu, Jeremy Anthony, Tina Constantin, Mary-Margaret Ciavatta, Kandace McCarver, Mary Ellen Sweeney
STUDY OBJECTIVES: Obstructive sleep apnea (OSA) and type 2 diabetes mellitus (T2DM) are prevalent disorders that pose increased risk of cardiovascular disease and death. The objective of this study was to clarify if continuous positive airway pressure (CPAP) therapy for OSA affects T2DM control and emergence. METHODS: Point-of-care, comparative effectiveness study; cross-sectional and longitudinal analyses. RESULTS: Our cohort included 928 consecutive patients; 13% were women; 36% were Caucasians and 61% African-Americans...
March 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27956898/association-between-sleep-duration-and-measurable-cardiometabolic-risk-factors-in-healthy-korean-women-the-fourth-and-fifth-korean-national-health-and-nutrition-examination-surveys-knhanes-iv-and-v
#17
Hyeyeon Min, Yoo Jin Um, Bum Sup Jang, Doosup Shin, EunJoo Choi, Sang Min Park, Kiheon Lee
Study Objectives. To examine the association between sleep duration and prevalence of metabolic syndrome (MetS) and its components in healthy Korean women. Design. Cross-sectional study, using the Fourth and Fifth Korean National Health and Nutrition Examination Surveys. Methods. Among 8505 women (25-70 years) from KNHANES IV and V, participants were classified into five sleep groups based on self-reported sleep duration. MetS and its components were defined using the criteria set forth in National Cholesterol Education Program-Adult Treatment Panel III...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27938927/association-between-sleep-duration-and-the-prevalence-of-hypertension-in-an-elderly-rural-population-of-china
#18
Lei Wu, Yao He, Bin Jiang, Miao Liu, Jianhua Wang, Di Zhang, Yiyan Wang, Jing Zeng, Yao Yao
BACKGROUND: Previous studies have examined an association between sleep duration and hypertension, but the conclusions remain inconsistent. METHODS: We conducted a cross-sectional study in a community-based rural elderly population of Beijing, China. A total of 2397 participants (967 male and 1430 female) completed the survey. Sleep duration was assessed in a face-to-face interview and was self-reported. Hypertension was defined as systolic blood pressure (BP) ≥ 140 mm Hg and/or diastolic BP ≥ 90 mm Hg and/or receiving treatment for hypertension...
November 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27925858/physical-activity-contributes-to-several-sleep-cardiometabolic-health-relationships
#19
Thirumagal Kanagasabai, Michael C Riddell, Chris I Ardern
PURPOSE: To estimate the contribution of accelerometer-derived physical activity to the relationship between sleep and cardiometabolic health. METHODS: Data from the 2005 to 2006 US National Health and Nutritional Examination Survey were used (N = 1226; 20 years+). Metabolic syndrome (MetS) was defined by the Joint Interim Statement, and sleep quality and quantity by the Sleep Disorders Questionnaire. Physical activity intensities were defined by activity thresholds (counts per minute) as sedentary activity (0-99), light intensity (100-759), lifestyle activity (760-2019), moderate intensity (2020-5996), and vigorous intensity (≥5999)...
February 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/27912885/tetrandrine-an-alkaloid-from-s-tetrandra-exhibits-anti-hypertensive-and-sleep-enhancing-effects-in-shr-via-different-mechanisms
#20
Yuan-Li Huang, Su-Ying Cui, Xiang-Yu Cui, Qing Cao, Hui Ding, Jin-Zhi Song, Xiao Hu, Hui Ye, Bin Yu, Zhao-Fu Sheng, Zi-Jun Wang, Yong-He Zhang
BACKGROUND: Sleep disorders have been found to be associated with hypertension in both cross-sectional and longitudinal epidemiological studies. Tetrandrine, a major component of Stephania tetrandra, is well known as an antihypertensive agent. The anti-hypertension mechanism mainly relies on its L-type calcium channel blocking property. In the previous study, tetrandrine revealed both anti-hypertension and hypnotic effects in spontaneously hypertensive rats (SHRs). PURPOSE: This study aims to elucidate whether the antihypertensive mechanism of tetrandrine in SHRs is relevant to its hypnotic effect...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
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