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Clark ELM, Gutierrez-Colina A, Ruzicka EB, Sanchez N, Bristol M, Gulley LD, Broussard JL, Kelsey MM, Simon SL, Shomaker LB. Racial and ethnic sleep health disparities in adolescents and risk for type 2 diabetes: a narrative review. Ann Med 2024; 56:2399756. [PMID: 39253865 DOI: 10.1080/07853890.2024.2399756] [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: 11/27/2023] [Revised: 05/21/2024] [Accepted: 07/09/2024] [Indexed: 09/11/2024] Open
Abstract
INTRODUCTION Sleep is an essential factor for health and wellbeing in people across the age spectrum; yet many adolescents do not meet the recommended 8-10 h of nightly sleep. Unfortunately, habitually insufficient sleep, along with the metabolic changes of puberty, puts adolescents at increased risk for a host of adverse health outcomes such as obesity and type 2 diabetes (T2D). Furthermore, individuals from historically minoritized racial and ethnic groups (e.g. Hispanic/Latinx, African American/Black) are more likely to experience shorter sleep duration compared to adolescents of White/European origin, placing them at even greater risk for disparities in T2D risk. METHODS We conducted a literature review on the role of race and ethnicity in adolescent sleep health and its relation to cardiometabolic outcomes, specifically T2D. We use the minority stress model and the stress and coping theory as guiding theoretical frameworks to examine individual and societal level factors that may contribute to sleep health disparities and their downstream effects on T2D risk. RESULTS This review highlights that the unique race-related stressors adolescents from minoritized groups face may play a role in the sleep and T2D connection on a biological, psychological, and social level. However, although there has been advancement in the current research on adolescent racial and ethnic sleep health disparities in relation to T2D, mechanisms underlying these disparities in sleep health need further investigation. Addressing these gaps is crucial for identifying and mitigating sleep health disparities and T2D among racial and ethnic minority youth. CONCLUSION We conclude with a discussion of the implications and future research directions of racial and ethnic disparities in sleep health and T2D prevention research. A comprehensive understanding of adolescent sleep health disparities has potential to better inform preventative and educational programs, interventions, and policies that promote sleep health equity and improve cardiometabolic outcomes like T2D.
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Affiliation(s)
- Emma L M Clark
- Human Development & Family Studies, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, USA
| | - Ana Gutierrez-Colina
- Human Development & Family Studies, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, USA
- Pediatric Endocrinology, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
| | - Elizabeth B Ruzicka
- Human Development & Family Studies, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, USA
- Pediatric Endocrinology, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
| | - Natalia Sanchez
- Human Development & Family Studies, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, USA
- Community & Behavioral Health, Epidemiology, and Global Health & Health Disparities, Colorado School of Public Health, Aurora, CO, USA
| | - Madison Bristol
- Human Development & Family Studies, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, USA
- Pediatric Endocrinology, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
- Community & Behavioral Health, Epidemiology, and Global Health & Health Disparities, Colorado School of Public Health, Aurora, CO, USA
| | - Lauren D Gulley
- Human Development & Family Studies, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, USA
- Pediatric Endocrinology, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
| | - Josiane L Broussard
- Health & Exercise Science, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, USA
- Endocrinology, Diabetes and Metabolism, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Megan M Kelsey
- Pediatric Endocrinology, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
| | - Stacey L Simon
- Pediatric Endocrinology, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
- Pulmonology and Sleep Medicine, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
| | - Lauren B Shomaker
- Human Development & Family Studies, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, USA
- Pediatric Endocrinology, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO, USA
- Community & Behavioral Health, Epidemiology, and Global Health & Health Disparities, Colorado School of Public Health, Aurora, CO, USA
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D'agata MN, Hoopes EK, Keiser T, Patterson F, Szymanski KM, Matias AA, Brewer BC, Witman MA. Device-estimated sleep metrics do not mediate the relation between race and blood pressure dipping in young black and white women. J Clin Hypertens (Greenwich) 2024; 26:850-860. [PMID: 38923277 PMCID: PMC11232447 DOI: 10.1111/jch.14856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/01/2024] [Accepted: 05/17/2024] [Indexed: 06/28/2024]
Abstract
Short, disturbed, and irregular sleep may contribute to blunted nocturnal blood pressure (BP) dipping, a predictor of cardiovascular disease. Black women (BLW) demonstrate less BP dipping and poorer sleep health than White women (WHW). However, it remains unclear whether device-estimated sleep health metrics mediate the relation between race and BP dipping in young women. We hypothesized that the relation between race and BP dipping would be partly mediated by sleep health metrics of sleep duration, sleep efficiency, and sleep regularity. Participants (20 BLW, 17 WHW) were 18-29 years old, normotensive, nonobese, and without evidence of sleep disorders. Systolic and diastolic BP dipping were derived from 24-h ambulatory BP monitoring. Habitual sleep duration and sleep efficiency were estimated via 14 days of wrist actigraphy. Sleep duration regularity was calculated as the standard deviation (SD) of nightly sleep duration (SDSD). Sleep timing regularity metrics were calculated as the SD of sleep onset and sleep midpoint (SMSD). Mediation analysis tested the mediating effect of each sleep metric on the relation between race and BP dipping. BLW experienced less systolic (P = .02) and diastolic (P = .01) BP dipping. Sleep duration (P = .14) was not different between groups. BLW had lower sleep efficiency (P < .01) and higher SDSD (P = .02), sleep onset SD (P < .01) and SMSD (P = .01). No sleep metrics mediated the relation between race and BP dipping (all indirect effects P > .38). In conclusion, mediation pathways of sleep health metrics do not explain racial differences in nocturnal BP dipping between young BLW and WHW.
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Affiliation(s)
- Michele N. D'agata
- Department of Kinesiology and Applied PhysiologyCollege of Health SciencesUniversity of DelawareNewarkDelawareUSA
| | - Elissa K. Hoopes
- Department of Health Behavior and Nutrition SciencesCollege of Health SciencesUniversity of DelawareNewarkDelawareUSA
| | - Thomas Keiser
- Department of Health Behavior and Nutrition SciencesCollege of Health SciencesUniversity of DelawareNewarkDelawareUSA
| | - Freda Patterson
- Department of Health Behavior and Nutrition SciencesCollege of Health SciencesUniversity of DelawareNewarkDelawareUSA
| | - Krista M. Szymanski
- Department of Kinesiology and Applied PhysiologyCollege of Health SciencesUniversity of DelawareNewarkDelawareUSA
| | - Alexs A. Matias
- Department of Kinesiology and Applied PhysiologyCollege of Health SciencesUniversity of DelawareNewarkDelawareUSA
| | - Benjamin C. Brewer
- Department of EpidemiologyCollege of Health SciencesUniversity of DelawareNewarkDelawareUSA
| | - Melissa A. Witman
- Department of Kinesiology and Applied PhysiologyCollege of Health SciencesUniversity of DelawareNewarkDelawareUSA
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Chen H, Zhao D, Guo Z, Ma D, Wu Y, Chen G, Liu Y, Kong T, Wang F. U-shaped relationship between lights-out time and nocturnal oxygen saturation during the first trimester: An analysis based on the nuMOM2b-SDB data. Heliyon 2024; 10:e29494. [PMID: 38681541 PMCID: PMC11053181 DOI: 10.1016/j.heliyon.2024.e29494] [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: 02/13/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 05/01/2024] Open
Abstract
Objective Preventing adverse events due to unstable oxygen saturation (SpO2) at night in pregnant women is of utmost importance. Poor sleep has been demonstrated to impact SpO2 levels. Nowadays, many gravida have a habit of prolonged exposure to light before sleep, which can disrupt their sleep. Therefore, this study aimed at investigate the relationship between lights-out time, sleep parameters and SpO2, exploring the underlying mechanisms. Methods The data of 2881 eligible subjects from the Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-be and Sleep Disordered Breathing (nuMOM2b-SDB) database were analyzed. Multiple linear regression models were used to investigate the relationship between lights-out time and SpO2. In addition, restricted cubic splines (RCS) were employed to fit the nonlinear correlation between the two variables. The smoothing curve method was further utilized to depict the relationship between lights-out time and SpO2 based on various subgroup variables. Results All participants were categorized according to race/ethnicity. A negative correlation was observed between nighttime lights-out time and average value of SpO2 (Avg-SpO2) (β = -0.05, p = 0.010). RCS revealed a U-shaped relationship between lights-out time and Avg-SpO2, with the turning point at 22:00. The subcomponent stratification results indicated that the Avg-SpO2 and minimum value of SpO2(Min-SpO2) of advanced maternal age decreased as the lights-out time was delayed. Furthermore, overweight and obese gravida showed lower Avg-SpO2 and Min-SpO2 levels than normal weight. Conclusions A U-shaped relationship was identified between lights-out time and nocturnal Avg-SpO2 during early pregnancy, with the inflection at 22:00. Notably, later lights-out times are associated with lower levels of Min-SpO2 for advanced maternal age. The findings suggest that appropriately adjusting the duration of light exposure before sleep and maintaining a relatively restful state may be more beneficial for the stability of SpO2 in pregnant women. Conversely, deviations from these practices could potentially lead to pathological alterations in SpO2 levels.
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Affiliation(s)
- Hongxu Chen
- School of Public Health, Xinjiang Medical University, Urumqi, 830063, China
| | - Danyang Zhao
- Medical Neurobiology Lab, Inner Mongolia Medical University, Huhhot, 010110, China
| | - Zixuan Guo
- Medical Neurobiology Lab, Inner Mongolia Medical University, Huhhot, 010110, China
| | - Duo Ma
- Department of Ultrasonography, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yan Wu
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, 100096, China
| | - Guangxue Chen
- Department of Gynaecology and Obstetrics, Beijing Jishuitan Hospital, Beijing, 102208, China
| | - Yanlong Liu
- School of Mental Health, Wenzhou Medical University, Wenzhou, 325035, China
| | - Tiantian Kong
- Xinjiang Key Laboratory of Neurological Disorder Research, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, 830063, China
| | - Fan Wang
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, 100096, China
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Ghazi L, Cohen JB, Townsend RR, Drawz PE, Rahman M, Pradhan N, Cohen DL, Weir MR, Rincon-Choles H, Juraschek SP. Orthostatic hypotension, orthostatic hypertension, and ambulatory blood pressure in patients with chronic kidney disease in CRIC. J Hypertens 2024; 42:329-336. [PMID: 37889527 PMCID: PMC10842034 DOI: 10.1097/hjh.0000000000003604] [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] [Indexed: 10/28/2023]
Abstract
BACKGROUND Orthostatic changes in blood pressure (BP), either orthostatic hypotension or orthostatic hypertension (OHTN), are common among patients with chronic kidney disease. Whether they are associated with unique out-of-office BP phenotypes is unknown. METHODS CRIC is a prospective, multicenter, observational cohort study of participants with CKD. BP measured at 2 min after standing and ambulatory BP monitoring (ABPM) were obtained on 1386 participants. Orthostatic hypotension was defined as a 20 mmHg drop in SBP or 10 mmHg drop in DBP when changing from seated to standing positions. Systolic and diastolic night-to-day ratio was also calculated. OHTN was defined as a 20 or 10 mmHg rise in SBP or DBP when changing from a seated to a standing position. White-coat effect (WCE) was defined as seated minus daytime ambulatory BP. RESULTS Of the 1386 participants (age: 58 ± 10 years, 44% female, 39% black), 68 had orthostatic hypotension and 153 had OHTN. Postural reduction in SBP or DBP was positively associated with greater systolic and diastolic WCE and systolic and diastolic night-to-day ratio. Orthostatic hypotension was positively associated with diastolic WCE (β = 3 [0.2, 5.9]). Diastolic OHTN was negatively associated with systolic WCE (β = -4 [-7.2, -0.5]) and diastolic WCE (β = -6 [-8.1, -4.2]). CONCLUSION Postural change in BP was associated with WCE and night-to-day-ratio. Orthostatic hypotension was positively associated with WCE and OHTN was negatively associated with WCE. These findings strengthen observations that postural changes in BP may associate with distinct BP patterns throughout the day. These observations are informative for subsequent research tailoring orthostatic hypotension and OHTN treatment to specific BP phenotypes.
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Affiliation(s)
- Lama Ghazi
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, AL
| | - Jordana B Cohen
- Renal-Electrolyte and Hypertension Division, Department of Medicine, University of Pennsylvania, PA
| | - Raymond R Townsend
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Paul E Drawz
- Division of Nephrology and Hypertension, Department of Medicine, University of Minnesota, Minneapolis, MN
| | - Mahboob Rahman
- Division of Nephrology and Hypertension, University Hospitals Cleveland Medical Center, Case Western Reserve University, OH
| | - Nishigandha Pradhan
- Division of Nephrology and Hypertension, University Hospitals Cleveland Medical Center, Case Western Reserve University, OH
| | - Debbie L Cohen
- Renal-Electrolyte and Hypertension Division, Department of Medicine, University of Pennsylvania, PA
| | - Matthew R. Weir
- Division of Nephrology, University of Maryland School of Medicine, Baltimore, MD
| | - Hernan Rincon-Choles
- Cleveland Clinic Foundation, Glickman Urological & Kidney Institute, Department of Nephrology, Cleveland, OH
| | - Stephen P Juraschek
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
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Lipski D, Marzyńska D, Sytek P, Rzesoś P, Rabiza A, Żurek S, Radziemski A, Stryczyński Ł, Tykarski A, Uruski P. Obesity in Hypertensive Patients Is Characterized by a Dawn Phenomenon in Systolic Blood Pressure Values and Variability. J Clin Med 2024; 13:371. [PMID: 38256505 PMCID: PMC10816240 DOI: 10.3390/jcm13020371] [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: 11/22/2023] [Revised: 12/31/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
One of the causes of hypertension is excess weight gain, which can also affect the course of this disease. Both the diagnosis and management of hypertension commonly use ambulatory blood pressure monitoring; the results of which correlate more strongly with cardiovascular diseases and cardiovascular death than office blood pressure monitoring. We evaluated blood pressure values and their variability from hour to hour to see if and when they differed between hypertensive patients with and without obesity. The study included 1345 patients who underwent 24 h ambulatory blood pressure monitoring and then were divided into groups according to body mass index and waist circumference. The obtained data were analyzed according to the subjects' wake-up time, and short-term blood pressure variability parameters were calculated as the mean of the absolute values of the differences between consecutive measurements. The systolic blood pressure in obese subjects was significantly higher between 1 and 5 h before waking than in normal-weighted individuals. In turn, the variability in systolic and diastolic blood pressure was higher with increasing body mass index. The difference in systolic blood pressure values and blood pressure variability was most prominent in the last 5 h of sleep in obese patients.
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Affiliation(s)
- Dawid Lipski
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
| | - Dorota Marzyńska
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
| | - Paulina Sytek
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
| | - Patrycja Rzesoś
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
| | - Agnieszka Rabiza
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
| | - Sebastian Żurek
- Institute of Physics, University of Zielona Gora, 65-516 Zielona Gora, Poland
| | - Artur Radziemski
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
| | - Łukasz Stryczyński
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
| | - Andrzej Tykarski
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
| | - Paweł Uruski
- Department of Hypertensiology, Angiology and Internal Medicine, Poznan University of Medical Sciences, 61-848 Poznan, Poland
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Mortazavi BJ, Martinez-Brockman JL, Tessier-Sherman B, Burg M, Miller M, Nowroozilarki Z, Adams OP, Maharaj R, Nazario CM, Nunez M, Nunez-Smith M, Spatz ES. Classification of blood pressure during sleep impacts designation of nocturnal nondipping. PLOS DIGITAL HEALTH 2023; 2:e0000267. [PMID: 37310958 PMCID: PMC10263317 DOI: 10.1371/journal.pdig.0000267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/03/2023] [Indexed: 06/15/2023]
Abstract
The identification of nocturnal nondipping blood pressure (< 10% drop in mean systolic blood pressure from awake to sleep periods), as captured by ambulatory blood pressure monitoring, is a valuable element of risk prediction for cardiovascular disease, independent of daytime or clinic blood pressure measurements. However, capturing measurements, including determination of wake/sleep periods, is challenging. Accordingly, we sought to evaluate the impact of different definitions and algorithms for defining sleep onset on the classification of nocturnal nondipping. Using approaches based upon participant self-reports, applied definition of a common sleep period (12 am -6 am), manual actigraphy, and automated actigraphy we identified changes to the classification of nocturnal nondipping, and conducted a secondary analysis on the potential impact of an ambulatory blood pressure monitor on sleep. Among 61 participants in the Eastern Caribbean Health Outcomes Research Network hypertension study with complete ambulatory blood pressure monitor and sleep data, the concordance for nocturnal nondipping across methods was 0.54 by Fleiss' Kappa (depending on the method, 36 to 51 participants classified as having nocturnal nondipping). Sleep quality for participants with dipping versus nondipping was significantly different for total sleep length when wearing the ambulatory blood pressure monitor (shorter sleep duration) versus not (longer sleep duration), although there were no differences in sleep efficiency or disturbances. These findings indicate that consideration of sleep time measurements is critical for interpreting ambulatory blood pressure. As technology advances to detect blood pressure and sleep patterns, further investigation is needed to determine which method should be used for diagnosis, treatment, and future cardiovascular risk.
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Affiliation(s)
- Bobak J. Mortazavi
- Department of Computer Science & Engineering, Texas A&M University, College Station, Texas, United States of America
- Center for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas, United States of America
- Yale/Yale New Haven Health System Corporation Center for Outcomes Research and Evaluation, New Haven, Connecticut, United States of America
| | - Josefa L. Martinez-Brockman
- Equity Research and Innovation Center, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Baylah Tessier-Sherman
- Equity Research and Innovation Center, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Matthew Burg
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America
- Department of Anesthesiology, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Mary Miller
- Equity Research and Innovation Center, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Zhale Nowroozilarki
- Department of Computer Science & Engineering, Texas A&M University, College Station, Texas, United States of America
| | - O. Peter Adams
- Department of Family Medicine, Faculty of Medical Sciences, University of the West Indies, Cave Hill, Barbados
| | - Rohan Maharaj
- Department of Paraclinical Sciences, University of the West Indies, Saint Augustine, Trinidad
| | - Cruz M. Nazario
- Department of Biostatistics and Epidemiology, Graduate School of Public Health, University of Puerto Rico, San Juan, Puerto Rico
| | - Maxine Nunez
- School of Nursing, University of the Virgin Islands, US Virgin Islands
| | - Marcella Nunez-Smith
- Equity Research and Innovation Center, Yale School of Medicine, New Haven, Connecticut, United States of America
- Section of General Internal Medicine, Department of Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Erica S. Spatz
- Yale/Yale New Haven Health System Corporation Center for Outcomes Research and Evaluation, New Haven, Connecticut, United States of America
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America
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Chong LS, Lin B, Gordis E. Racial differences in sympathetic nervous system indicators: Implications and challenges for research. Biol Psychol 2023; 177:108496. [PMID: 36641137 DOI: 10.1016/j.biopsycho.2023.108496] [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: 09/20/2022] [Revised: 12/07/2022] [Accepted: 01/07/2023] [Indexed: 01/13/2023]
Abstract
Growing evidence indicates the presence of racial differences in sympathetic nervous system (SNS) functioning, yet the nature of these differences is unclear and appears to vary across different indices of SNS activity. Moreover, racial differences among commonly used indices of SNS activity are under-investigated. This systematic review examines racial differences among widely used resting SNS indices, such as electrodermal activity (EDA), pre-ejection period (PEP), and salivary alpha-amylase (sAA). Our review reveals that Black participants have consistently been found to display lower resting EDA compared to White participants. The few studies that have investigated or reported racial differences in PEP and sAA yield mixed findings about whether racial differences exist. We discuss potential reasons for racial differences in SNS activity, such as index-specific factors, lab confounds, psychosocial environmental factors, and their interactions. We outline a framework characterizing possible contributors to racial differences in SNS functioning. Lastly, we highlight the implications of several definitional, analytic, and interpretive issues concerning the treatment of group differences in psychophysiological activity and provide future recommendations.
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Affiliation(s)
- Li Shen Chong
- Department of Psychology, University at Albany, State University of New York, Albany, NY 12222, United States.
| | - Betty Lin
- Department of Psychology, University at Albany, State University of New York, Albany, NY 12222, United States.
| | - Elana Gordis
- Department of Psychology, University at Albany, State University of New York, Albany, NY 12222, United States.
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Pagi R, Yadin O, Wesseling-Perry K, Norris K, Laster ML. Racial-ethnic diversity in ambulatory blood pressure monitoring in children with chronic kidney disease. Pediatr Nephrol 2023; 38:819-827. [PMID: 35802270 PMCID: PMC9842582 DOI: 10.1007/s00467-022-05659-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Black adults with chronic kidney disease (CKD) have higher rates of hypertension as compared to White adults with CKD. Little is known of how race and ethnicity associate with the prevalence of hypertension in pediatric CKD patients. The aim was to compare ambulatory blood pressure monitoring (ABPM) results for patients with CKD enrolled in the Chronic Kidney Disease in Children (CKiD) study across racial-ethnic groups. METHODS Patients from the CKiD study who identified as non-Hispanic White, non-Hispanic Black, or Hispanic were included to analyze differences in ABPM results across these racial-ethnic groups. The outcomes were fitted using 3 progressively adjusted models. RESULTS This study included 501 CKiD participants with at least one successful ABPM study. Compared to White participants, Black participants had 4.2 mmHg higher mean sleep systolic blood pressure and 2.7 mmHg higher mean sleep diastolic blood pressure (p = 0.001 and p = 0.004, respectively). Additionally, Black participants had higher odds of abnormal wake systolic load (OR 1.88, 1.21-2.91, p = 0.005), wake diastolic load (OR 1.68, 1.03-2.73, p = 0.04), sleep systolic load (OR 2.19, 1.36-3.5, p = 0.001), sleep diastolic load (OR 2.01, 1.28-3.15, p = 0.002), systolic non-dipping (OR 2.02, 1.31-3.10, p = 0.001), and diastolic non-dipping (OR 2.69, 1.60-4.51, p < 0.001). Compared to White participants, Hispanic participants demonstrated only a lower sleep diastolic load (OR 0.54, 0.31-0.95, p = 0.03). CONCLUSIONS Black children with CKD have higher absolute nocturnal blood pressures and higher rates of abnormal dipping. Further studies are needed to determine the etiology of these differences and the clinical implications of racial-ethnic differences in ABPM outcomes within the pediatric CKD population. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Reut Pagi
- Department of Pediatrics, Division of Nephrology, David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Avenue, MDCC A2-383, Los Angeles, CA 90095-1752 USA
| | - Ora Yadin
- Department of Pediatrics, Division of Nephrology, David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Avenue, MDCC A2-383, Los Angeles, CA 90095-1752 USA
| | - Katherine Wesseling-Perry
- Department of Pediatrics, Division of Nephrology, David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Avenue, MDCC A2-383, Los Angeles, CA 90095-1752 USA
| | - Keith Norris
- Department of Pediatrics, Division of Nephrology, David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Avenue, MDCC A2-383, Los Angeles, CA 90095-1752 USA ,Department of Medicine, Division of Nephrology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA USA
| | - Marciana Lee Laster
- Department of Pediatrics, Division of Nephrology, David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Avenue, MDCC A2-383, Los Angeles, CA, 90095-1752, USA.
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9
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Giessner S, Ramaker ME, Blew K, Crawford ML, Grant RP, Bain JR, Muehlbauer M, Jain N, Hsia DS, Armstrong S, Freemark M, Gumus Balikcioglu P. Disrupted Circadian Rhythm of Epinephrine in Males With Youth-Onset Type 2 Diabetes. J Endocr Soc 2022; 7:bvac190. [PMID: 36632209 PMCID: PMC9825134 DOI: 10.1210/jendso/bvac190] [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: 11/16/2022] [Indexed: 12/15/2022] Open
Abstract
Context Blood pressure and plasma catecholamines normally decline during sleep and rapidly increase in early morning. This is blunted in adults with type 2 diabetes (T2D). Objective We hypothesize that increased sympatho-adrenal activity during sleep differentiates youth with T2D from nondiabetic obese youth and lean youth. Methods Fasting spot morning and 24-hour urines were collected in obese adolescents with and without T2D, and normal-weight controls. Fractionated free urine catecholamines (epinephrine, norepinephrine, and dopamine) were measured, and the ratio of fasting spot morning to 24-hour catecholamines was calculated. Results Urinary 24-hour catecholamine levels were comparable across the 3 groups. Fasting morning epinephrine and the ratio of fasting morning/24-hour epinephrine were higher in youth with T2D (P = 0.004 and P = 0.035, respectively). In males, the ratio of fasting morning/24-hour epinephrine was also higher in youth with T2D (P = 0.005). In females, fasting morning norepinephrine and the ratio of fasting morning/24-hour dopamine were lower in obese youth with and without T2D (P = 0.013 and P = 0.005, respectively) compared with lean youth. Systolic blood pressure was higher in diabetic participants than other groups; males trended higher than females. Conclusion Circadian rhythm in catecholamines is disrupted in youth-onset T2D, with a blunted overnight fall in urinary epinephrine in males. Conversely, fasting morning norepinephrine and dopamine levels were lower in obese females with or without T2D. Higher nocturnal catecholamines in males with T2D might associate with, or predispose to, hypertension and cardiovascular complications. Lower catecholamine excretion in females with obesity might serve an adaptive, protective role.
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Affiliation(s)
- Stephanie Giessner
- General Pediatrics, Duke University Medical Center, Durham, NC 27710, USA
| | - Megan E Ramaker
- Duke Molecular Physiology Institute (DMPI), Duke University Medical Center, Durham, NC 27701, USA
| | - Kathryn Blew
- Division of Pediatric Endocrinology and Diabetes, Duke University Medical Center, Durham, NC 27710, USA
| | - Matthew L Crawford
- Department of Research and Development, LabCorp, Burlington, NC 27215, USA
| | - Russell P Grant
- Department of Research and Development, LabCorp, Burlington, NC 27215, USA
| | - James R Bain
- Duke Molecular Physiology Institute (DMPI), Duke University Medical Center, Durham, NC 27701, USA
- Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27705, USA
- Division of Endocrinology, Metabolism, and Nutrition, Duke University Medical Center, Durham, NC 27710, USA
| | - Michael Muehlbauer
- Duke Molecular Physiology Institute (DMPI), Duke University Medical Center, Durham, NC 27701, USA
- Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27705, USA
| | - Nina Jain
- Division of Endocrinology, Department of Pediatrics, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Daniel S Hsia
- Clinical Trials Unit, Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA
| | - Sarah Armstrong
- Division of General Pediatrics and Adolescent Health, Duke University Medical Center, Durham, NC 27710, USA
- Department of Family Medicine and Community Health, Duke University Medical Center, Durham, NC 27710, USA
- Department of Population Health Sciences, Duke University Medical Center, Durham, NC 27701, USA
- Duke Clinical Research Institute, Duke University Medical Center, Durham, NC 27701, USA
| | - Michael Freemark
- Duke Molecular Physiology Institute (DMPI), Duke University Medical Center, Durham, NC 27701, USA
- Division of Pediatric Endocrinology and Diabetes, Duke University Medical Center, Durham, NC 27710, USA
| | - Pinar Gumus Balikcioglu
- Duke Molecular Physiology Institute (DMPI), Duke University Medical Center, Durham, NC 27701, USA
- Division of Pediatric Endocrinology and Diabetes, Duke University Medical Center, Durham, NC 27710, USA
- Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, NC 27705, USA
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10
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Forshaw PE, Correia ATL, Roden LC, Lambert EV, Rae DE. Sleep characteristics associated with nocturnal blood pressure nondipping in healthy individuals: a systematic review. Blood Press Monit 2022; 27:357-370. [PMID: 36094364 DOI: 10.1097/mbp.0000000000000619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The current literature investigating nocturnal blood pressure (BP) nondipping has largely focused on clinical populations, however, conditions such as hypertension, obstructive sleep apnoea and insomnia are recognized confounding factors for BP dipping. The exact mechanisms responsible for BP nondipping remain unclear, therefore, there is a need to investigate BP nondipping in healthy individuals to better understand the underlying mechanisms. This review identifies sleep characteristics that may contribute to BP nondipping in healthy individuals. It is anticipated that an understanding of the sleep characteristics that contribute to BP nondipping may inform future sleep-related behavioral interventions to ultimately reducing the burden of cardiovascular disease. METHODS The PubMed, Scopus and Web of Science databases were searched for relevant, English language, peer-reviewed publications (from inception to March 2022). The search identified 550 studies. After duplicates were removed, the titles and abstracts of the remaining 306 studies were screened. Of these, 250 studies were excluded leaving 56 studies to test for eligibility. Thirty-nine studies were excluded such that 17 studies fully met the inclusion criteria for the review. RESULTS Findings from this review indicate that short sleep duration, more sleep fragmentation, less sleep depth and increased variability in sleep timing may be associated with BP nondipping in healthy individuals. CONCLUSION While there is no evidence-based approach for the treatment of nocturnal BP nondipping, it seems promising that addressing one's sleep health may be an important starting point to reduce the prevalence of BP nondipping and perhaps the progression to cardiovascular disease.
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Affiliation(s)
- Philippa Eileen Forshaw
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Arron Taylor Lund Correia
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Laura Catherine Roden
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Centre for Sport, Exercise and Life Sciences, School of Life Sciences, Faculty of Health and Life Sciences, Coventry University, United Kingdom
| | - Estelle Victoria Lambert
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Dale Elizabeth Rae
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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11
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Mistry SK, Hossain MB, Parvez M, Gupta RD, Arora A. Prevalence and determinants of hypertension among urban slum dwellers in Bangladesh. BMC Public Health 2022; 22:2063. [DOI: 10.1186/s12889-022-14456-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 10/26/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In low- and middle- income countries such as Bangladesh, urban slum dwellers are particualry vulnerable to hypertension due to inadequate facilities for screening and management, as well as inadequate health literacy among them. However, there is scarcity of evidence on hypertension among the urban slum dwellers in Bangladesh. The present study aimed to determine the prevalence and factors associated with hypertension among urban slum dwellers in Bangladesh.
Methods
Data were collected as part of a large-scale cross-sectional survey conducted by Building Resources Across Communities (BRAC) between October 2015 and January 2016. The present analysis was performed among 1155 urban slum dwellers aged 35 years or above. A structured questionnaire was adminstered to collect data electronically and blood pressure measurements were taken using standardised procedures. Binary logistic regression with generalized estimating equation modelling was performed to estimate the factors associated with hypertension.
Results
The prevalence of hypertension was 28.3% among urban slum dwellers aged 35 years and above. In adjusted analysis, urban slum dwellers aged 45–54 years (AOR: 1.64, 95% CI: 1.17–2.28), 55–64 years (AOR: 2.47, 95% CI: 1.73–3.53) and ≥ 65 years (AOR: 2.34, 95% CI: 1.47–3.72), from wealthier households (AOR: 1.94, 95% CI: 1.18–3.20), sleeping < 7 h per day (AOR: 1.87, 95% CI: 1.39–2.51), who were overweight (AOR: 1.53, 95% CI: 1.09–2.14) or obese (AOR: 2.34, 95% CI: 1.71–3.20), and having self-reported diabetes (AOR: 3.08, 95% CI: 1.88–5.04) had an increased risk of hypertension. Moreover, 51.0% of the participants were taking anti-hypertensive medications and 26.4% of them had their hypertension in control.
Conclusions
The findings highlight a high burden of hypertension and poor management of it among the slum dwellers in Bangladesh requiring a novel approach to improve care. It is integral to effectively implement the available national non-communicable disease (NCD) control guidelines and redesign the current urban primary health care system to have better coordination.
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12
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Payseur DK, Belhumeur JR, Curtin LA, Moody AM, Collier SR. The effect of acute alcohol ingestion on systemic hemodynamics and sleep architecture in young, healthy men. JOURNAL OF AMERICAN COLLEGE HEALTH : J OF ACH 2022; 70:509-516. [PMID: 32369424 DOI: 10.1080/07448481.2020.1756826] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 02/12/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
Objective Heightened nocturnal blood pressure (BP) may be attributed to the disruption of sleep, a condition worsened by alcohol ingestion. This study investigated the effects of acute alcohol ingestion on hemodynamics and sleep architecture in a young, healthy cohort of male. METHODS: Subjects (n = 17) underwent acute alcohol ingestion reaching a breath alcohol content of 0.08. Each subject endured a battery of hemodynamic tests and had their sleep architecture and nocturnal blood pressure monitored pre- and post-ingestion. Results: Systolic blood pressure (SBP) increased both 30 minutes and 12 hours after alcohol. Ambulatory nocturnal SBP significantly increased after alcohol compared to baseline measures. Minutes of total, rapid eye movement, and light sleep all increased after alcohol ingestion, while a decrease was observed for sleep latency. Conclusions: An acute bout of heavy alcohol consumption may attenuate nocturnal BP dipping that, in turn, may hasten the progression of hypertension-related cardiovascular disease.
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Affiliation(s)
- Daniel K Payseur
- Vascular Biology & Autonomic Studies Lab, Appalachian State University, Boone, North Carolina, USA
| | | | - Lisa A Curtin
- Department of Psychology, Appalachian State University, Boone, North Carolina, USA
| | - Anne M Moody
- Vascular Biology & Autonomic Studies Lab, Appalachian State University, Boone, North Carolina, USA
| | - Scott R Collier
- Vascular Biology & Autonomic Studies Lab, Appalachian State University, Boone, North Carolina, USA
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13
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Su Y, Li C, Long Y, He L, Ding N. Association Between Bedtime at Night and Systolic Blood Pressure in Adults in NHANES. Front Med (Lausanne) 2022; 8:734791. [PMID: 35004716 PMCID: PMC8738078 DOI: 10.3389/fmed.2021.734791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/09/2021] [Indexed: 11/13/2022] Open
Abstract
Objectives: This study aimed to explore the association between bedtime at night and systolic blood pressure (SBP) in adults. Methods: We conducted a cross-sectional study composed of 7,642 individuals from the National Health and Nutrition Examination Survey (NHANES). Bedtime was defined as the response to the question: “What time do you usually fall asleep on weekdays or workdays?” SBP was taken using the average of all measured values. Multiple linear regression analyses were done to explore the relationship between bedtime and SBP. Results: The bedtime was changed from categorical variable to continuous variable for data analysis, and a significantly negative association was identified between bedtime and SBP (β, −0.23 [95% CI, −0.43, −0.02]). With the delay of bedtime, the SBP showed a gradual decrease trend, and it was dropped to the lowest at 0:00. After 0:00, the SBP was gradually increased with the delay of sleep time. The stratified analyses showed that in the female group, with the delay of bedtime, the range of SBP was decreased more obviously at 0:00. In the 18–45 year group, bedtime had little effect on SBP. Among ≥45 years old group, this trend was still the same. In the black group, an obvious downward trend was found at 22:00. Conclusion: With the delay of bedtime, the SBP had shown a gradual decrease trend, and it was dropped to the lowest at 0:00. After 0:00, the SBP was gradually increased with the delay of sleep time. Bedtime and SBP showed a U-shaped relationship.
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Affiliation(s)
- Yingjie Su
- Department of Emergency Medicine, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
| | - Changluo Li
- Department of Emergency Medicine, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
| | - Yong Long
- Department of Emergency Medicine, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
| | - Liudang He
- Department of Emergency Medicine, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
| | - Ning Ding
- Department of Emergency Medicine, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, China
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14
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Gargiulo AT, Peterson LM, Grafe LA. Stress, coping, resilience, and sleep during the COVID-19 pandemic: A representative survey study of US adults. Brain Behav 2021; 11:e2384. [PMID: 34661981 PMCID: PMC8613418 DOI: 10.1002/brb3.2384] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/10/2021] [Accepted: 09/17/2021] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION The COVID-19 pandemic is a global health emergency resulting in widespread death and substantial disruption to daily life. Previous research has shown that novel disease outbreaks are associated with high stress levels and sleep impairments that lead to neuropsychiatric consequences. Therefore, it is vital to study both stress and protective factors such as coping and resilience that may hinder or help sleep quality during the COVID-19 pandemic. Further, as gender disparities exist in sleep quality, it is important to understand the relationship between pandemic-related stress, coping strategies, resilience, and sleep in bothgenders during the COVID-19 pandemic. METHODS Our study examined how gender, stress, coping, and resilience were associated with sleep cross-sectionally during the COVID-19 pandemic in a representative sample of US adults (N = 393). RESULTS Consistent with many recent studies, we found that worsened sleep quality in women compared to men persisted during the COVID-19 pandemic. Interestingly, pandemic-related stress was not significantly associated with sleep quality, but pandemicrelated coping was associated with sleep independent of robust controls and trait resilience. CONCLUSIONS Greater primary control engagement coping was associated with better sleep quality, while involuntary engagement coping was associated with poor sleep quality. Future research should extend the findings with actigraphy and explore ways to enhance beneficial coping and sleep health during pandemics.
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Affiliation(s)
- Andrew T. Gargiulo
- Department of PsychologyBryn Mawr College Bryn MawrBryn MawrPennsylvaniaUSA
| | - Laurel M. Peterson
- Department of PsychologyBryn Mawr College Bryn MawrBryn MawrPennsylvaniaUSA
| | - Laura A. Grafe
- Department of PsychologyBryn Mawr College Bryn MawrBryn MawrPennsylvaniaUSA
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15
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Inoue K, Horwich T, Bhatnagar R, Bhatt K, Goldwater D, Seeman T, Watson KE. Urinary Stress Hormones, Hypertension, and Cardiovascular Events: The Multi-Ethnic Study of Atherosclerosis. Hypertension 2021; 78:1640-1647. [PMID: 34510914 DOI: 10.1161/hypertensionaha.121.17618] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Kosuke Inoue
- Department of Epidemiology, UCLA Fielding School of Public Health (K.I., T.S.).,Department of Social Epidemiology, Graduate School of Medicine, Kyoto University, Japan (K.I.)
| | - Tamara Horwich
- Division of Cardiology (T.H., D.G., K.E.W.), Department of Medicine, University of California, Los Angeles
| | - Roshni Bhatnagar
- Department of Medicine, University of California, Los Angeles (R.B., K.B.)
| | - Karan Bhatt
- Department of Medicine, University of California, Los Angeles (R.B., K.B.)
| | - Deena Goldwater
- Division of Cardiology (T.H., D.G., K.E.W.), Department of Medicine, University of California, Los Angeles.,Division of Geriatrics (D.G., T.S.), Department of Medicine, University of California, Los Angeles
| | - Teresa Seeman
- Department of Epidemiology, UCLA Fielding School of Public Health (K.I., T.S.).,Division of Geriatrics (D.G., T.S.), Department of Medicine, University of California, Los Angeles
| | - Karol E Watson
- Division of Cardiology (T.H., D.G., K.E.W.), Department of Medicine, University of California, Los Angeles
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16
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Hill LK, Wu JQ, Hinderliter AL, Blumenthal JA, Sherwood A. Actigraphy-Derived Sleep Efficiency Is Associated With Endothelial Function in Men and Women With Untreated Hypertension. Am J Hypertens 2021; 34:207-211. [PMID: 33048161 DOI: 10.1093/ajh/hpaa167] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/21/2020] [Accepted: 10/07/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Poor sleep quality is increasingly recognized as an important and potentially modifiable risk factor for cardiovascular disease (CVD). Impaired endothelial function may be 1 mechanism underlying the association between poor sleep and CVD risk. The present study examined the relationship between objective measures of sleep quality and endothelial function in a sample of untreated hypertensive adults. METHODS Participants were 127 men (N = 74) and women (N = 53), including 55 African Americans and 72 White Americans, aged 40-60 years (mean age, 45.3 ± 8.5 years), with untreated hypertension (systolic blood pressure 130-159 mm Hg and/or diastolic blood pressure 85-99 mm Hg). Noninvasive brachial artery flow-mediated dilation (FMD) was assessed by ultrasound. Sleep parameters, including sleep efficiency (SE), total sleep time (TST), and subjective sleep quality, were assessed over 7 consecutive days by wrist actigraphy. RESULTS Participants averaged 7.76 ± 1 hours in bed, with an average SE of 78 ± 9%, and TST of 6 ± 1 hours. Brachial FMD averaged 3.5 ± 3.1%. In multivariate analyses controlling for sex, race, body mass index, clinic blood pressure, income, smoking, alcohol use, and baseline arterial diameter, SE was positively associated with FMD (β = 0.28, P = 0.012). Subjective sleep quality (β = -0.04, P = 0.63) and TST (β = -0.11, P = 0.25) were unrelated to FMD. CONCLUSIONS Poor sleep as indicated by low SE was associated with impaired FMD. These findings for SE are consistent with previous observations of other measures implicating poor sleep as a CVD risk factor. Interventions that improve sleep may also help lower CVD risk.
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Affiliation(s)
- LaBarron K Hill
- Department of Psychiatry and Behavioral Sciences Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Jade Q Wu
- Department of Psychiatry and Behavioral Sciences Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Alan L Hinderliter
- Department of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | - James A Blumenthal
- Department of Psychiatry and Behavioral Sciences Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Andrew Sherwood
- Department of Psychiatry and Behavioral Sciences Medicine, Duke University Medical Center, Durham, North Carolina, USA
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17
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Makarem N, Alcántara C, Williams N, Bello NA, Abdalla M. Effect of Sleep Disturbances on Blood Pressure. Hypertension 2021; 77:1036-1046. [PMID: 33611935 DOI: 10.1161/hypertensionaha.120.14479] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This review summarizes recent literature addressing the association of short sleep duration, shift work, and obstructive sleep apnea with hypertension risk, blood pressure (BP) levels, and 24-hour ambulatory BP. Observational studies demonstrate that subjectively assessed short sleep increases hypertension risk, though conflicting results are observed in studies of objectively assessed short sleep. Intervention studies demonstrate that mild and severe sleep restriction are associated with higher BP. Rotating and night shift work are associated with hypertension as shift work may exacerbate the detrimental impact of short sleep on BP. Further, studies demonstrate that shift work may increase nighttime BP and reduce BP control in patients with hypertension. Finally, moderate to severe obstructive sleep apnea is associated with hypertension, particularly resistant hypertension. Obstructive sleep apnea is also associated with abnormal 24-hour ambulatory BP profiles, including higher daytime and nighttime BP, nondipping BP, and a higher morning surge. Continuous positive airway pressure treatment may lower BP and improve BP dipping. In conclusion, efforts should be made to educate patients and health care providers about the importance of identifying and treating sleep disturbances for hypertension prevention and management. Empirically supported sleep health interventions represent a critical next step to advance this research area and establish causality.
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Affiliation(s)
- Nour Makarem
- From the Department of Epidemiology, Mailman School of Public Health, Columbia University Irving Medical Center, New York, NY (N.M.)
| | | | - Natasha Williams
- Department of Population Health, Center for Healthful Behavior Change, New York University Grossman School of Medicine (N.W.)
| | - Natalie A Bello
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, NY (N.A.B., M.A.)
| | - Marwah Abdalla
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, NY (N.A.B., M.A.)
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18
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Paula DP, Lopes LJ, Mill JG, Fonseca MJM, Griep RH. Identifying patterns of diurnal blood pressure variation among ELSA-Brasil participants. J Clin Hypertens (Greenwich) 2020; 22:2315-2324. [PMID: 33017521 DOI: 10.1111/jch.14066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 11/26/2022]
Abstract
Ambulatory blood pressure monitoring (ABPM) is the gold standard method for the diagnosis of hypertension. ABPM provides a set of repeated measurements for blood pressure (BP), usually over 24 h. Traditional approaches characterize diurnal BP variation by single ABPM parameters such as average and standard deviation, regardless of the temporal nature of the data. In this way, information about the pattern of diurnal BP variation and relationship between parameters is lost. The objective of this study was to identify and characterize daily BP patterns considering the set of repeated measures from 24-h ABPM. A total of 859 adult participants of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) performed a 24-h ABPM record. Hypertension, sex, age, race/color, education, marital status, smoking, alcohol, physical activity, and BMI were the covariables analyzed. Techniques for longitudinal clustering, multinomial models, and models with mixed effects were used. Three daily BP patterns were identified. Daily BP patterns with high BP presented higher standard deviation and morning surge and lower nocturnal dipping. They showed greater systolic BP variability and faster rise than fall in diastolic BP during sleep. Hypertensive, "pardos," and men had greater odds to present these patterns. Daily BP patterns with high BP presented the worst profile concerning ABPM parameters associated with cardiovascular risk. The daily BP patterns identified contribute to the characterization of diurnal BP variation.
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Affiliation(s)
- Daniela P Paula
- National School of Statistical Sciences, Brazilian Institute of Geography and Statistics, Rio de Janeiro, Brazil
| | - Leidjaira J Lopes
- Department of Nutrition and Health, Federal University of Viçosa, Minas Gerais, Brazil
| | - José G Mill
- Department of Physiological Sciences, Federal University of Espírito Santo, Vitória, Brazil
| | - Maria J M Fonseca
- Department of Epidemiology, National School of Public Health (ENSP/Fiocruz), Rio de Janeiro, Brazil
| | - Rosane H Griep
- Health and Environmental Education Laboratory, Oswaldo Cruz Institute (IOC/Fiocruz), Rio de Janeiro, Brazil
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19
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St-Onge MP, Campbell A, Aggarwal B, Taylor JL, Spruill TM, RoyChoudhury A. Mild sleep restriction increases 24-hour ambulatory blood pressure in premenopausal women with no indication of mediation by psychological effects. Am Heart J 2020; 223:12-22. [PMID: 32135337 DOI: 10.1016/j.ahj.2020.02.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 02/06/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Studies assessing the impact of sleep restriction (SR) on blood pressure (BP) are limited by short study length, extreme SR (<4 hours a night), and lack of attention to psychological distress as a possible mediator. METHODS A community-based cohort was assembled with 237 women (age 34.1 ± 13.5 years; body mass index 25.4 ± 5.4 kg/m2), and a randomized, crossover, intervention study was conducted in 41 women (24 completed: age 30.2 ± 6.5 years; body mass index 24.3 ± 2.8 kg/m2) to determine the causal effect of SR on BP. Sleep was maintained as usual (HS) or reduced by 1.5 hours a night (SR) for 6 weeks. In the cohort, associations between sleep and psychosocial factors were evaluated using multivariable models adjusted for demographic and clinical confounders. In the intervention study, in-office BP was measured weekly; ambulatory BP was measured at end point. Psychological factors were assessed at baseline and end point. Mixed-model analyses with total sleep time (TST, main predictor), week and fraction of time spent in physical activity (covariates), and subject (random effect) were performed. RESULTS Among the community cohort, higher perceived stress, stressful events and distress, and lower resilience were associated with shorter sleep, worse sleep quality, and greater insomnia symptoms (P < .05). In the intervention, systolic BP increased as TST decreased (TST × week interaction, [coefficient ± standard error] -0.0097 ± 0.0046, P = .036). Wake ambulatory diastolic blood pressure (-0.059 ± 0.022, P = .021) and mean arterial pressure (-0.067 ± 0.023, P = .018) were higher after SR versus HS. Psychological distress variables were not affected by TST and did not mediate the effects of SR on BP. CONCLUSIONS These results suggest that SR influences CVD risk in women via mechanisms independent of psychological stressors.
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Affiliation(s)
- Marie-Pierre St-Onge
- Sleep center of excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY; Institute of Human Nutrition, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY.
| | - Ayanna Campbell
- Sleep center of excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY
| | - Brooke Aggarwal
- Sleep center of excellence, Department of Medicine, Columbia University Irving Medical Center, New York, NY
| | - Jasmine L Taylor
- Institute of Human Nutrition, Vagelos College of Physicians & Surgeons, Columbia University Irving Medical Center, New York, NY; Tulane Medical Center, New Orleans, LA
| | - Tanya M Spruill
- Department of Population Health, NYU School of Medicine, New York, NY
| | - Arindam RoyChoudhury
- Division of Biostatistics and Epidemiology, Department of Healthcare Policy and Research, Weill Cornell Medicine, Cornell University, New York, NY
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Casagrande M, Favieri F, Guarino A, Di Pace E, Langher V, Germanò G, Forte G. The Night Effect of Anger: Relationship with Nocturnal Blood Pressure Dipping. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E2705. [PMID: 32326399 PMCID: PMC7216280 DOI: 10.3390/ijerph17082705] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 03/29/2020] [Accepted: 04/13/2020] [Indexed: 12/18/2022]
Abstract
INTRODUCTION The circadian pattern of blood pressure is characterized by a physiological drop occurring after sleep onset. The alteration of this phenomenon (non-dipping, extreme dipping, or reverse dipping) is associated with an increased cardiovascular risk. Besides altered autonomic and endocrine circadian rhythms, psychological aspects seem to play a role in this modification. However, the few studies that have analyzed the influence of psychological dimensions on the dipping phenomenon have reported inconsistent results. This study aimed to examine the relationship between anger expression and blood pressure (BP) dipping. METHODS We obtained 24 h ambulatory BP measurements from 151 participants and used them to define three groups according to their dipping status: Dippers (N = 65), Non-Dippers (N = 42), and Extreme Dippers (N = 44). Sociodemographic and anamnestic information was collected, and the State-Trait Anger Expression Inventory was used to assess anger. RESULTS Analysis of variance evidenced significant higher scores for Trait Anger Temperament and Anger Expression in Extreme Dippers than in both Dippers and Non-Dippers. However, after controlling for confounding variables, there was no significant relationship with trait anger, and only the result concerning the suppression of anger was confirmed. CONCLUSIONS These findings suggest that the analysis of some psychological factors, such as anger, could be necessary to better understand differences in nocturnal BP alterations. Trait anger and suppression of anger may contribute to the description and classification of patients who exhibit a maladaptive dipping phenomenon. However, modifiable (i.e., cigarette consumption) and unmodifiable (i.e., age) risk factors appear to mediate this relationship. Although further studies are necessary to explore this association, these results highlight that some aspects of anger can represent risk factors or markers of maladaptive modulation of the dipping phenomenon.
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Affiliation(s)
- Maria Casagrande
- Dipartimento di Psicologia Dinamica e Clinica–Università di Roma “Sapienza”, Via degli Apuli 1, 00185 Roma, Italy;
| | - Francesca Favieri
- Dipartimento di Psicologia—Università di Roma “Sapienza”, Via dei Marsi 78, 00185 Roma, Italy; (F.F.); (A.G.); (E.D.P.)
| | - Angela Guarino
- Dipartimento di Psicologia—Università di Roma “Sapienza”, Via dei Marsi 78, 00185 Roma, Italy; (F.F.); (A.G.); (E.D.P.)
| | - Enrico Di Pace
- Dipartimento di Psicologia—Università di Roma “Sapienza”, Via dei Marsi 78, 00185 Roma, Italy; (F.F.); (A.G.); (E.D.P.)
| | - Viviana Langher
- Dipartimento di Psicologia Dinamica e Clinica–Università di Roma “Sapienza”, Via degli Apuli 1, 00185 Roma, Italy;
| | - Giuseppe Germanò
- Dipartimento di Scienze Cardiovascolari, Respiratorie, Nefrologiche e Geriatriche–Università di Roma “Sapienza”, Piazzale Aldo Moro, 00185 Roma, Italy;
| | - Giuseppe Forte
- Dipartimento di Psicologia—Università di Roma “Sapienza”, Via dei Marsi 78, 00185 Roma, Italy; (F.F.); (A.G.); (E.D.P.)
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Disturbed Sleep as a Mechanism of Race Differences in Nocturnal Blood Pressure Non-Dipping. Curr Hypertens Rep 2019; 21:51. [DOI: 10.1007/s11906-019-0954-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Circadian hemodynamics in men and women with high blood pressure: dipper vs. nondipper and racial differences. J Hypertens 2019; 36:250-258. [PMID: 28902662 DOI: 10.1097/hjh.0000000000001533] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The 'nondipping' pattern of circadian blood pressure (BP) variation is an established independent predictor of adverse cardiovascular outcomes. Although this phenomenon has been widely studied, its underlying circadian hemodynamics of cardiac output and systemic vascular resistance (SVR) have not been well characterized. We evaluated the hypothesis that BP nondipping would be associated with a blunted night-time reduction in SVR in a biracial sample of 140 (63 African-American and 77 white) men and women with elevated clinic BP (130-159/85-99 mmHg). METHODS AND RESULTS Twenty-four-hour ambulatory hemodynamics were assessed using standard ambulatory BP monitoring coupled with synchronized ambulatory impedance cardiography. Using the criterion of less than 10% dip in SBP, there were 51 nondippers (SBP dip = 7.3 ± 2.6%) and 89 dippers (SBP dip = 15.5 ± 3.4%). There was minimal change in cardiac output from daytime to night-time in both dippers and nondippers. However, SVR decreased from daytime to night-time, but nondippers compared with dippers exhibited a significantly attenuated decrease in SVR from daytime to night-time (7.8 vs. 16.1%, P < 0.001). Relative to their white counterparts, African-Americans also exhibited blunted SBP dipping (10.9 vs. 14.6%, P < 0.001) as well as an attenuated decrease in SVR (10.8 vs. 15.6%, P < 0.001). CONCLUSION Overall, these findings indicate that blunted night-time BP dipping is associated with impairment of the systemic vasodilation that is characteristic of the night-time sleep period and is especially prominent among African-Americans. In the context of high BP, these findings suggest that nondipping may be a manifestation, or marker, of more advanced vascular disease.
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Makarem N, Shechter A, Carnethon MR, Mullington JM, Hall MH, Abdalla M. Sleep Duration and Blood Pressure: Recent Advances and Future Directions. Curr Hypertens Rep 2019; 21:33. [PMID: 30953237 DOI: 10.1007/s11906-019-0938-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW This review discusses the recent literature on subjectively and objectively assessed sleep duration in relation to hypertension risk and out-of-clinic blood pressure (BP) measures and highlights critical areas for future research. RECENT FINDINGS Sleep duration, particularly short sleep, may influence BP through disturbed autonomic balance, hormonal imbalances, increased adiposity and metabolic dysfunction, and disrupted circadian rhythms. Observational studies indicate that short and long sleep are associated with hypertension risk, reduced nocturnal dipping, and elevated morning BP, but evidence is stronger for short sleep. Experimental sleep restriction increases BP, while sleep extension may lower BP in prehypertensive individuals. Women and racial/ethnic minorities are more prone to the detrimental effects of short sleep on BP. Additional studies are warranted to clarify the association of objectively assessed sleep with BP level and diurnal pattern and to determine the sex- and race-specific effects of sleep restriction and extension on BP.
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Affiliation(s)
- Nour Makarem
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, 51 Audubon Avenue, 5th floor, Suite 501, New York, NY, 10032, USA
| | - Ari Shechter
- Department of Medicine, Division of Cardiology, Center for Behavioral Cardiovascular Health, Columbia University Irving Medical Center, 622 West 168th Street, PH 9-321, New York, NY, 10032, USA
| | - Mercedes R Carnethon
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Janet M Mullington
- Department of Neurology, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA, USA
| | - Martica H Hall
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Marwah Abdalla
- Department of Medicine, Division of Cardiology, Center for Behavioral Cardiovascular Health, Columbia University Irving Medical Center, 622 West 168th Street, PH 9-321, New York, NY, 10032, USA.
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Li M, Yan S, Jiang S, Ma X, Gao T, Li B. Relationship between sleep duration and hypertension in northeast China: a cross-sectional study. BMJ Open 2019; 9:e023916. [PMID: 30670514 PMCID: PMC6347883 DOI: 10.1136/bmjopen-2018-023916] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES Previous studies have reported that sleep duration might increase the risk of hypertension. However, the results have been conflicting. We investigated whether sleep duration is independently associated with hypertension. We aimed to assess the relationship between sleep duration and hypertension in a population-based cross-sectional study. METHODS In this study we used multistage stratified cluster sampling. A total of 19 407 adults aged 18-79 years were enrolled in the study. The participants were divided into three groups (<7 hours/day, 7-8 hours/day and >8 hours/day) according to self-reported sleep duration. Hypertension was defined as systolic blood pressure ≥140 mm Hg or diastolic blood pressure ≥90 mm Hg or the use of anti-hypertensive medications. Univariate and multivariate logistic regressions were performed to determine the association between hypertension and sleep duration adjusted for sociodemographic, body mass index, and lifestyle covariates. RESULTS The overall prevalence of hypertension was 32.6%. Among participants aged 18-44 years, individuals sleeping less than 7 hours per day had a higher risk of hypertension (OR=1.24, 95% CI: 1.05 to 1.46), compared with those who slept 7-8 hours per day. There were no significant associations between sleep duration and hypertension in the total sample, among middle-aged adults (45-59 years) or older adults (60-79 years). CONCLUSIONS Our study demonstrates that short sleep duration was significantly associated with hypertension among people aged 18-44 years in northeast China.
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Affiliation(s)
- Meng Li
- Department of Epidemiology and Biostatistics, Jilin University School of Public Health, Changchun, China
| | - Shoumeng Yan
- Department of Epidemiology and Biostatistics, Jilin University School of Public Health, Changchun, China
| | - Shan Jiang
- Department of Epidemiology and Biostatistics, Jilin University School of Public Health, Changchun, China
| | - Xiaoyu Ma
- Department of Epidemiology and Biostatistics, Jilin University School of Public Health, Changchun, China
| | - Tianyu Gao
- Department of Epidemiology and Biostatistics, Jilin University School of Public Health, Changchun, China
- Department of Medical Health Inspection, Changchun Health Supervision Institute, Changchun, China
| | - Bo Li
- Department of Epidemiology and Biostatistics, Jilin University School of Public Health, Changchun, China
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Sherwood A, Hill LK, Blumenthal JA, Hinderliter AL. The Effects of Ambulatory Blood Pressure Monitoring on Sleep Quality in Men and Women With Hypertension: Dipper vs. Nondipper and Race Differences. Am J Hypertens 2019; 32:54-60. [PMID: 30204833 DOI: 10.1093/ajh/hpy138] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/04/2018] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The nondipping circadian blood pressure (BP) profile is associated with both poor sleep quality and increased cardiovascular risk. The present study aimed to clarify the potential confounding effects of 24-hour ambulatory blood pressure monitoring (ABPM) used to characterize the circadian BP profile by assessing its impact on sleep quality. METHODS Participants were 121 middle-aged men and women with untreated hypertension (age = 46 ± 8 years; 43% women; 45% African-American). Subjective sleep quality was assessed using the Pittsburgh Sleep Quality Index. Wrist actigraphy was used to measure sleep quality objectively as sleep efficiency (SE) and total sleep time (TST) on 7 consecutive non-ABPM days (baseline) and 3 subsequent 24-hour ABPM days. RESULTS Average ambulatory BP was 137.2 ± 10.8/84.3 ± 8.5 mm Hg during the day and 119.6 ± 12.4/69.5 ± 9.8 mm Hg at night. Using the criterion of <10% dip in systolic BP (SBP) to define nondippers, there were 40 nondippers (SBP dip = 7.3 ± 2.6%) and 81 dippers (SBP dip = 15.5 ± 3.4%). There was no effect of time on SE or TST over non-ABPM and ABPM days, suggesting that ABPM does not adversely affect sleep quality. Sleep quality was generally poorer (lower SE) in nondippers compared with dippers (P = 0.033), but differences were independent of whether or not participants were undergoing 24-hour ABPM. African-American race (P = 0.002) was also associated with lower SE. CONCLUSION Sleep quality generally appears to be poor in men and women with untreated hypertension and especially among African-Americans. Importantly, for both dippers and nondippers, we found no evidence that ABPM had an adverse effect on sleep quality.
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Affiliation(s)
| | | | | | - Alan L Hinderliter
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Niclou AM, James GD, Bovbjerg DH. The consistency of circadian blood pressure and heart rate patterns over three months in women employed in sedentary office jobs. Am J Hum Biol 2018; 30:e23177. [PMID: 30203463 DOI: 10.1002/ajhb.23177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 08/01/2018] [Accepted: 08/12/2018] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES The purpose of this study was to evaluate the consistency of the circadian patterns of blood pressure (BP) and heart rate (HR) variation over a three-month time frame in women employed outside the home. METHODS The subjects were 157 healthy women of varying ethnicity (age = 38.2 ± 8.9) who all worked in similar positions at two major medical centers in New York City. Each wore an ambulatory BP monitor during the course of three mid-week work days approximately one month apart. Hourly BPs and HRs were calculated from 9 am to 6 am the following morning and compared among the three days using anova and t tests. RESULTS The results indicate that there were virtually no differences in the mean hourly levels of any parameter during the waking period across the three days of assessment. However, mean hourly levels of systolic BP significantly declined from 12 pm to 4 am (P < .04, P = .001, P < .001, P = .001, P = .009, respectively) on the third assessment day compared to the first. CONCLUSIONS Because BP and HR respond to environmental demands in an allostatic fashion, the consistency in the waking patterns of BP and HR variation suggest that the patterns of demands on a workday are reasonably stable in this sample of women. The decline in systolic pressures from 12 pm to 4 am over the three assessments may indicate an improving ability to sleep with the monitor over time.
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Affiliation(s)
| | - Gary D James
- Department of Anthropology, Binghamton University, Binghamton, New York.,Decker School of Nursing, Binghamton University, Binghamton, New York.,Department of Biomedical Engineering, Binghamton University, Binghamton, New York
| | - Dana H Bovbjerg
- Departments of: Psychiatry, Psychology, Behavioral & Community Health Sciences, Health & Community Systems; and Biobehavioral Oncology Program, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, Pennsylvania
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Morning Blood Pressure Surge Relates to Autonomic Neural Activity in Young Non-Dipping Adults: The African-PREDICT Study. Heart Lung Circ 2018; 28:1197-1205. [PMID: 30093314 DOI: 10.1016/j.hlc.2018.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/24/2018] [Accepted: 07/04/2018] [Indexed: 01/23/2023]
Abstract
BACKGROUND It is well established that an exaggerated morning blood pressure surge (MBPS) is associated with an increased risk for cardiovascular disease development in hypertensive individuals. However, in non-dipping individuals, a lower surge was reportedly associated with increased cardiovascular risk. Sympathetic nervous system activity is involved in 24-hour blood pressure fluctuations, including night-time dipping and the MBPS. To better understand this interaction, we investigated associations of MBPS with heart-rate variability and baroreceptor sensitivity in young healthy dippers and non-dippers. METHODS We included black and white men and women (n=827), aged 20-30 years and determined the MBPS using two formulas: the sleep-trough and dynamic morning surge. For autonomic function we determined baroreceptor sensitivity and heart-rate variability. RESULTS The majority of non-dippers in this population were black (70.4%), presenting lower sleep-trough and dynamic morning surge (all p<0.001). Heart-rate variability was comparable between dippers and non-dippers, whereas baroreceptor sensitivity was higher in non-dippers (p=0.021). Despite a suppressed MBPS profile in non-dippers, we found both sleep-trough (β=-0.25; p=0.039) and dynamic morning surge (β=-0.14; p=0.047) to be inversely and independently associated with 24-hour heart-rate variability (total power). These results were absent in dippers. CONCLUSIONS In conclusion, we found a higher night-time blood pressure coupled with lower MBPS in young healthy non-dippers. Furthermore, this lower MBPS was independently and negatively associated with autonomic neural activity, suggesting increased autonomic function involvement in MBPS suppression of non-dippers. The predictive value of suppressed nocturnal dipping pattern should be investigated while taking autonomic neural activity into account.
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Morning blood pressure surge in young black and white adults: The African-PREDICT Study. J Hum Hypertens 2018; 33:22-33. [DOI: 10.1038/s41371-018-0089-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 11/09/2022]
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Covassin N, Greene EL, Singh P, Somers VK. Disparities in Hypertension Among African-Americans: Implications of Insufficient Sleep. Curr Hypertens Rep 2018; 20:57. [PMID: 29884924 DOI: 10.1007/s11906-018-0855-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW Sleep deficiency has been proposed as a potential contributor to racial disparities in cardiovascular health. We present contemporary evidence on the unequal burden of insufficient sleep in Blacks/African-Americans and the repercussions for disparate risk of hypertension. RECENT FINDINGS The prevalence of insufficient sleep is high and rising and has been recognized as an important cardiovascular risk factor. Presumably due to a constellation of environmental, psychosocial, and individual determinants, these risks appear exacerbated in Blacks/African-Americans, who are more likely to experience short sleep than other ethnic/racial groups. Population-based data suggest that the risk of hypertension associated with sleep deficiency is greater in those of African ancestry. However, there is a paucity of experimental evidence linking short sleep duration to blood pressure levels in African-Americans. Blacks/African-Americans may be more vulnerable to sleep deficiency and to its hypertensive effects. Future research is needed to unequivocally establish causality and determine the mechanism underlying the postulated racial inequalities in sleep adequacy and consequent cardiovascular risk.
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Affiliation(s)
- Naima Covassin
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN, 55905, USA.
| | - Eddie L Greene
- Division of Nephrology and Hypertension, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Prachi Singh
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN, 55905, USA
| | - Virend K Somers
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN, 55905, USA
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Objective sleep quality and night-time blood pressure in the general elderly population. J Hypertens 2018; 36:601-607. [DOI: 10.1097/hjh.0000000000001569] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Stephan Y, Sutin AR, Bayard S, Križan Z, Terracciano A. Personality and sleep quality: Evidence from four prospective studies. Health Psychol 2018; 37:271-281. [PMID: 29172602 PMCID: PMC5837948 DOI: 10.1037/hea0000577] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE The present study examined the longitudinal association between personality traits and sleep quality in 4 samples of middle-aged and older adults. METHOD Participants (N > 22,000) were adults aged 30 to 107 years old from the Wisconsin Longitudinal Study (WLS), the Midlife in the United States Study (MIDUS), the Health and Retirement Study (HRS), and the Midlife in Japan Study (MIDJA). Personality and sleep quality were assessed at baseline and again 4 to 10 years later. RESULTS Scoring lower on neuroticism and higher on extraversion was associated with better sleep quality at baseline and over time, with effect sizes larger than those of demographic factors. Low conscientiousness was associated with a worsening of sleep quality over time. Openness and agreeableness were unrelated to sleep quality. Poor sleep quality at baseline was associated with steeper declines in extraversion, agreeableness, and conscientiousness and a smaller decrease in neuroticism over time. CONCLUSION Replicable findings across samples support longitudinal associations between personality and sleep quality. This study identified specific personality traits that are associated with poor and worsening sleep quality, and substantiated previous findings that poor sleep quality is associated with detrimental personality trajectories. (PsycINFO Database Record
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Affiliation(s)
| | - Angelina R. Sutin
- Florida State University College of Medicine, UNITED STATES OF AMERICA
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Sherwood A, Ulmer CS, Beckham JC. Waking up to the importance of sleeping well for cardiovascular health. J Clin Hypertens (Greenwich) 2018; 20:606-608. [PMID: 29457356 DOI: 10.1111/jch.13243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew Sherwood
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Christi S Ulmer
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Jean C Beckham
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
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Lo K, Woo B, Wong M, Tam W. Subjective sleep quality, blood pressure, and hypertension: a meta-analysis. J Clin Hypertens (Greenwich) 2018; 20:592-605. [PMID: 29457339 DOI: 10.1111/jch.13220] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/27/2017] [Accepted: 12/08/2017] [Indexed: 01/24/2023]
Abstract
Sleep quality is an important aspect of sleep, but no meta-analysis has elucidated its relationship with blood pressure (BP) and hypertension. A meta-analysis was conducted in October 2016 using multiple databases, including Embase and Medline. Studies that assessed subjective sleep quality and BP or hypertension were included. Upon full-text evaluation, 29 articles from 45 041 patients were selected, of which 22 articles were included in the meta-analysis and seven were presented narratively. Poor sleep quality was significantly associated with a greater likelihood of hypertension (odds ratio, 1.48; P value = .01). Poor sleepers had higher average systolic BP (mean difference = 4.37, P value = .09) and diastolic BP (mean difference = 1.25, P value = .32) than normal sleepers without statistical significance. Patients with hypertension had significantly worse sleep quality scores (mean difference = 1.51, P value < .01), while BP dippers had significantly better scores (mean difference = -1.67, P value < .01). The findings highlight the relationship between sleep quality and hypertension.
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Affiliation(s)
- Kenneth Lo
- School of Public Health and Primary Care, The Chinese University of Hong Kong, New Territories, Hong Kong
| | - Brigitte Woo
- Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Martin Wong
- The Nethersole School of Nursing, The Chinese University of Hong Kong, New Territories, Hong Kong
| | - Wilson Tam
- Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Zhao S, Fu S, Ren J, Luo L. Poor sleep is responsible for the impaired nocturnal blood pressure dipping in elderly hypertensive: A cross-sectional study of elderly. Clin Exp Hypertens 2018; 40:582-588. [PMID: 29420078 DOI: 10.1080/10641963.2017.1411495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE This study was aimed to assess whether sleep disorder was associated with an increased risk of less nocturnal blood pressure (BP) dipping in elderly patients with hypertension. METHODS Cases were 1006 patients, aged >60 years, who were admitted to hospital with diagnosed hypertension during 2016-2017, and were divided into three groups with the systolic nocturnal BP dipping of 10%, and 0% as the cut-off value. The patients' sleep was evaluated by Pittsburgh sleep quality index (PSQI). RESULTS Compared to non-dipper BP rhythm patients (n = 382) and dipper BP rhythm patients (n = 132), reverse dipper patients (n = 492) exhibited higher PSQI score and had higher scores on six components with the exception of use sleep drug (p < 0.05). Multivariate logistic regression indicated that poor sleep, which was defined as high score of PSQI or its seven components, was associated with prevalence of reverse dipper in elderly hypertensive (odds ratio (OR) = 1.17, (95% confidence interval (CI), 1.13-1.21, p < 0.05) after adjusting for risk factors of hypertension. Multiple linear regression analysis showed that there was a significant negative correlation between PSQI score (include its seven components) and nocturnal BP dipping value after adjusting for risk factors of hypertension (β = -0.584, p < 0.001). CONCLUSIONS In elderly patients with hypertension, poor sleep quality individuals were more prone to reverse dipper BP rhythm. Even adjusting for the effect of known risk factors of hypertension, poor sleep may contribute to attenuated BP dipping in elderly hypertensive.
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Affiliation(s)
- Shaopan Zhao
- a Department of Geriatric Cardiology , Chinese People's Liberation Army General Hospital , Beijing , China
| | - Shihui Fu
- a Department of Geriatric Cardiology , Chinese People's Liberation Army General Hospital , Beijing , China
| | - Jiefeng Ren
- a Department of Geriatric Cardiology , Chinese People's Liberation Army General Hospital , Beijing , China
| | - Leiming Luo
- a Department of Geriatric Cardiology , Chinese People's Liberation Army General Hospital , Beijing , China
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Whitesell PL, Obi J, Tamanna NS, Sumner AE. A Review of the Literature Regarding Sleep and Cardiometabolic Disease in African Descent Populations. Front Endocrinol (Lausanne) 2018; 9:140. [PMID: 29695999 PMCID: PMC5904363 DOI: 10.3389/fendo.2018.00140] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 03/16/2018] [Indexed: 12/22/2022] Open
Abstract
UNLABELLED In the twenty-first century, African descent populations on both the continent of Africa and throughout the world are experiencing a high rate of both sleep disturbances and cardiometabolic diseases. The most common sleep disturbances are reduced sleep duration, insomnia, disordered circadian rhythm, and obstructive sleep apnea. Cardiometabolic diseases include hypertension, coronary artery disease, diabetes, hyperlipidemia, and the metabolic syndrome. This review seeks to call attention to new insights regarding the impact of sleep disturbance on cardiometabolic risk factors and outcomes and then apply these concepts to African descent populations, a relatively understudied population. Initial data suggest disparities in sleep quality may have an important role in current and emerging patterns of cardiometabolic disease for African descent populations both in the United States and abroad. CLINICALTRIALSGOV IDENTIFIER Not applicable.
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Affiliation(s)
- Peter L. Whitesell
- Howard University Hospital Sleep Disorders Center, Washington, DC, United States
| | - Jennifer Obi
- Department of Internal Medicine, Howard University Hospital, Washington, DC, United States
| | - Nuri S. Tamanna
- Howard University Hospital Sleep Disorders Center, Washington, DC, United States
| | - Anne E. Sumner
- Section on Ethnicity and Health, Diabetes, Endocrinology and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases and National Institute of Minority Health and Health Disparities, National Institutes of Health (NIH), Bethesda, MD, United States
- *Correspondence: Anne E. Sumner,
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Yang H, Haack M, Gautam S, Meier-Ewert HK, Mullington JM. Repetitive exposure to shortened sleep leads to blunted sleep-associated blood pressure dipping. J Hypertens 2017; 35:1187-1194. [PMID: 28169885 DOI: 10.1097/hjh.0000000000001284] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
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). RESULTS Beat-to-beat BP and polysomnography were recorded and revealed that sleep-associated DBP dipping was significantly blunted during all four blocks of sleep restriction (P = 0.002). Further, DBP was significantly increased for the whole day during the first, second, and fourth block of sleep restriction (all P < 0.01), and SBP was significantly increased for the whole day during the first block of sleep restriction. CONCLUSION Repeated exposure to significantly shortened sleep blunts sleep-associated BP dipping, despite intermittent catch-up sleep. Individuals frequently experiencing insufficient sleep may be at increased risk for hypertension due to repetitive blunting of sleep-associated BP dipping, and resultant elevations in average circadian BP.
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Affiliation(s)
- Huan Yang
- aDepartment of Neurology bDepartment of Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School cDepartment of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
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Zullig LL, Diamantidis CJ, Bosworth HB, Bhapkar MV, Barnhart H, Oakes MM, Pendergast JF, Miller JJ, Patel UD. Racial differences in nocturnal dipping status in diabetic kidney disease: Results from the STOP-DKD (Simultaneous Risk Factor Control Using Telehealth to Slow Progression of Diabetic Kidney Disease) study. J Clin Hypertens (Greenwich) 2017; 19:1327-1335. [PMID: 28834119 PMCID: PMC5722697 DOI: 10.1111/jch.13088] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/30/2017] [Accepted: 06/04/2017] [Indexed: 11/29/2022]
Abstract
While racial variation in ambulatory blood pressure (BP) is known, patterns of diurnal dipping in the context of diabetic kidney disease have not been well defined. The authors sought to determine the association of race with nocturnal dipping status among participants with diabetic kidney disease enrolled in the STOP-DKD (Simultaneous Risk Factor Control Using Telehealth to Slow Progression of Diabetic Kidney Disease) trial. The primary outcome was nocturnal dipping-percent decrease in average systolic BP from wake to sleep-with categories defined as reverse dippers (decrease <0%), nondippers (0%-<10%), and dippers (≥10%). Twenty-four-hour ambulatory BP monitoring was completed by 108 participants (54% were nondippers, 24% were dippers, and 22% were reverse dippers). In adjusted models, the common odds of reverse dippers vs nondippers/dippers and reverse dippers/nondippers vs dippers was 2.6 (95% confidence interval, 1.2-5.8) times higher in blacks than in whites. Without ambulatory BP monitoring data, interventions that target BP in black patients may be unable to improve outcomes in this high-risk group.
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Affiliation(s)
- Leah L. Zullig
- Center of Excellence for Health Services Research in Primary CareDurham Veterans Affairs Health Care CenterDurhamNCUSA
- Division of General Internal MedicineDuke UniversityDurhamNCUSA
| | | | - Hayden B. Bosworth
- Center of Excellence for Health Services Research in Primary CareDurham Veterans Affairs Health Care CenterDurhamNCUSA
- Division of General Internal MedicineDuke UniversityDurhamNCUSA
- Department of Psychiatry and School of NursingDuke UniversityDurhamNCUSA
| | | | - Huiman Barnhart
- Department of Biostatistics and BioinformaticsDuke UniversityDurhamNCUSA
| | - Megan M. Oakes
- Division of General Internal MedicineDuke UniversityDurhamNCUSA
| | - Jane F. Pendergast
- Department of Biostatistics and BioinformaticsDuke UniversityDurhamNCUSA
| | - Julie J. Miller
- Division of General Internal MedicineDuke UniversityDurhamNCUSA
| | - Uptal D. Patel
- Division of NephrologyDuke UniversityDurhamNCUSA
- Gilead SciencesSan FranciscoCAUSA
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Curtis DS, Fuller-Rowell TE, El-Sheikh M, Carnethon MR, Ryff CD. Habitual sleep as a contributor to racial differences in cardiometabolic risk. Proc Natl Acad Sci U S A 2017; 114:8889-8894. [PMID: 28760970 PMCID: PMC5565403 DOI: 10.1073/pnas.1618167114] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Insufficient and disrupted sleep is linked with cardiovascular and metabolic dysregulation and morbidity. The current study examines the degree to which differences in sleep between black/African American (AA) and white/European American (EA) adults explain racial differences in cardiometabolic (CMB) disease risk. Total sleep time and sleep efficiency (percent of time in bed asleep) were assessed via seven nights of wrist actigraphy among 426 participants in the Midlife in the United States Study (31% AA; 69% EA; 61% female; mean age = 56.8 y). CMB risk was indexed as a composite of seven biomarkers [blood pressure, waist circumference, hemoglobin A1c (HbA1c), insulin resistance, triglycerides, HDL cholesterol (HDL-C), and C-reactive protein]. Covariates included sociodemographic characteristics and relevant health behaviors. Results indicated that AAs relative to EAs obtained less sleep (341 vs. 381 min) and had lower sleep efficiency (72.3 vs. 82.2%) (P values < 0.001). Further, 41% and 58% of the racial difference in CMB risk was explained by sleep time and sleep efficiency, respectively. In models stratified by sex, race was indirectly associated with CMB risk via sleep time and efficiency only among females (explaining 33% and 65% of the race difference, respectively). Indirect effects were robust to alternative model specifications that excluded participants with diabetes or heart disease. Consideration of sleep determinants and sleep health is therefore needed in efforts to reduce racial differences in CMB disease.
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Affiliation(s)
- David S Curtis
- Department of Human Development and Family Studies, Auburn University, Auburn, AL 36849;
| | | | - Mona El-Sheikh
- Department of Human Development and Family Studies, Auburn University, Auburn, AL 36849
| | | | - Carol D Ryff
- Department of Psychology, University of Wisconsin-Madison, Madison, WI 53706
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Quinn AK, Ae-Ngibise KA, Kinney PL, Kaali S, Wylie BJ, Boamah E, Shimbo D, Agyei O, Chillrud SN, Mujtaba M, Schwartz JE, Abdalla M, Owusu-Agyei S, Jack DW, Asante KP. Ambulatory monitoring demonstrates an acute association between cookstove-related carbon monoxide and blood pressure in a Ghanaian cohort. Environ Health 2017; 16:76. [PMID: 28732501 PMCID: PMC5521137 DOI: 10.1186/s12940-017-0282-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 06/26/2017] [Indexed: 05/05/2023]
Abstract
BACKGROUND Repeated exposure to household air pollution may intermittently raise blood pressure (BP) and affect cardiovascular outcomes. We investigated whether hourly carbon monoxide (CO) exposures were associated with acute increases in ambulatory blood pressure (ABP); and secondarily, if switching to an improved cookstove was associated with BP changes. We also evaluated the feasibility of using 24-h ambulatory blood pressure monitoring (ABPM) in a cohort of pregnant women in Ghana. METHODS Participants were 44 women enrolled in the Ghana Randomized Air Pollution and Health Study (GRAPHS). For 27 of the women, BP was measured using 24-h ABPM; home blood pressure monitoring (HBPM) was used to measure BP in the remaining 17 women. Personal CO exposure monitoring was conducted alongside the BP monitoring. RESULTS ABPM revealed that peak CO exposure (defined as ≥4.1 ppm) in the 2 hours prior to BP measurement was associated with elevations in hourly systolic BP (4.3 mmHg [95% CI: 1.1, 7.4]) and diastolic BP (4.5 mmHg [95% CI: 1.9, 7.2]), as compared to BP following lower CO exposures. Women receiving improved cookstoves had lower post-intervention SBP (within-subject change in SBP of -2.1 mmHg [95% CI: -6.6, 2.4] as compared to control), though this result did not reach statistical significance. 98.1% of expected 24-h ABPM sessions were successfully completed, with 92.5% of them valid according to internationally defined criteria. CONCLUSIONS We demonstrate an association between acute exposure to carbon monoxide and transient increases in BP in a West African setting. ABPM shows promise as an outcome measure for assessing cardiovascular health benefits of cookstove interventions. TRIAL REGISTRATION The GRAPHS trial was registered with clinicaltrials.gov on 13 April 2011 with the identifier NCT01335490 .
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Affiliation(s)
- Ashlinn K. Quinn
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 West 168th St, 11th floor, New York, 10032 NY USA
| | | | - Patrick L. Kinney
- Department of Environmental Health, Boston University School of Public Health, Boston, MA USA
| | - Seyram Kaali
- Kintampo Health Research Centre, Ghana Health Service, Brong Ahafo Region, Kintampo, Ghana
| | - Blair J. Wylie
- Division of Maternal-Fetal Medicine, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA USA
| | - Ellen Boamah
- Kintampo Health Research Centre, Ghana Health Service, Brong Ahafo Region, Kintampo, Ghana
| | - Daichi Shimbo
- Department of Medicine, Columbia University Medical Center, New York, NY USA
| | - Oscar Agyei
- Kintampo Health Research Centre, Ghana Health Service, Brong Ahafo Region, Kintampo, Ghana
| | - Steven N. Chillrud
- Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY USA
| | - Mohammed Mujtaba
- Kintampo Health Research Centre, Ghana Health Service, Brong Ahafo Region, Kintampo, Ghana
| | - Joseph E. Schwartz
- Institute for Applied Behavioral Medicine Research, Stony Brook University, Stony Brook, NY USA
- Center for Behavioral Cardiovascular Health, Columbia University, New York, NY USA
| | - Marwah Abdalla
- Center for Behavioral Cardiovascular Health, Columbia University, New York, NY USA
| | - Seth Owusu-Agyei
- Kintampo Health Research Centre, Ghana Health Service, Brong Ahafo Region, Kintampo, Ghana
| | - Darby W. Jack
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 West 168th St, 11th floor, New York, 10032 NY USA
| | - Kwaku Poku Asante
- Kintampo Health Research Centre, Ghana Health Service, Brong Ahafo Region, Kintampo, Ghana
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Ma Y, Sun S, Peng CK, Fang Y, Thomas RJ. Ambulatory Blood Pressure Monitoring in Chinese Patients with Obstructive Sleep Apnea. J Clin Sleep Med 2017; 13:433-439. [PMID: 27855748 DOI: 10.5664/jcsm.6498] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 10/18/2016] [Indexed: 01/02/2023]
Abstract
STUDY OBJECTIVES Nocturnal blood pressure (BP) dipping in patients with obstructive sleep apnea (OSA) has not yet been well investigated in Chinese patients, in whom the relationship of OSA and body mass index (BMI) is weaker than that in Caucasians. The aim of this study was to evaluate the BP profile, and the relationships between nocturnal BP and the severity of OSA, in Chinese patients. METHODS Consecutive Chinese adult outpatients with suspected OSA had overnight polysomnography (PSG), office BP, and 24-h ambulatory BP monitoring (ABPM). The apnea-hypopnea index (AHI) and nocturnal oxygen saturation level were recorded, and BP patterns were classified based on the ABPM. RESULTS Fifty-six subjects (40 male and 16 female, 48.59 ± 13.27 y) were evaluated. There were 14 patients with mild OSA (25.0%, AHI: 10.56 ± 3.42 events/h), 16 with moderate OSA (28.6%, AHI: 23.536 ± 3.42 events/h) and 26 with severe OSA (46.4%, AHI: 51.52 ± 3.42 events/h). There were 18 dippers (32.1%), 27 non-dippers (48.2%), and 11 reverse dippers (19.6%). As OSA severity increased, non-dipping also increased. A total of 67.9% of the OSA patients showed overall hypertension on ABPM, 57.1% had daytime hypertension only, and 73.2% had nighttime hypertension. CONCLUSIONS OSA severity is associated with 24-h BP profiles in a population with only mild increases in BMI. These results can influence clinical practice, OSA management, and hypertension treatment policies.
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Affiliation(s)
- Yan Ma
- Division of Interdisciplinary Medicine and Biotechnology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Shuchen Sun
- Department of Otolaryngology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,South Campus Sleep Center, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chung-Kang Peng
- Division of Interdisciplinary Medicine and Biotechnology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Yeming Fang
- Cardiovascular Department, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Robert J Thomas
- Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
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Thomas SJ, Booth JN, Bromfield SG, Seals SR, Spruill TM, Ogedegbe G, Kidambi S, Shimbo D, Calhoun D, Muntner P. Clinic and ambulatory blood pressure in a population-based sample of African Americans: the Jackson Heart Study. ACTA ACUST UNITED AC 2017; 11:204-212.e5. [PMID: 28285829 DOI: 10.1016/j.jash.2017.02.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 01/26/2017] [Accepted: 02/07/2017] [Indexed: 11/29/2022]
Abstract
Blood pressure (BP) can differ substantially when measured in the clinic versus outside of the clinic setting. Few population-based studies with ambulatory blood pressure monitoring (ABPM) include African Americans. We calculated the prevalence of clinic hypertension and ABPM phenotypes among 1016 participants in the population-based Jackson Heart Study, an exclusively African-American cohort. Mean daytime systolic BP was higher than mean clinic systolic BP among participants not taking antihypertensive medication (127.1[standard deviation 12.8] vs. 124.5[15.7] mm Hg, respectively) and taking antihypertensive medication (131.2[13.6] vs. 130.0[15.6] mm Hg, respectively). Mean daytime diastolic BP was higher than clinic diastolic BP among participants not taking antihypertensive medication (78.2[standard deviation 8.9] vs. 74.6[8.4] mm Hg, respectively) and taking antihypertensive medication (77.6[9.4] vs. 74.3[8.5] mm Hg, respectively). The prevalence of daytime hypertension was higher than clinic hypertension for participants not taking antihypertensive medication (31.8% vs. 14.3%) and taking antihypertensive medication (43.0% vs. 23.1%). A high percentage of participants not taking and taking antihypertensive medication had nocturnal hypertension (49.4% and 61.7%, respectively), white-coat hypertension (30.2% and 29.3%, respectively), masked hypertension (25.4% and 34.6%, respectively), and a nondipping BP pattern (62.4% and 69.6%, respectively). In conclusion, these data suggest hypertension may be misdiagnosed among African Americans without using ABPM.
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Affiliation(s)
- S Justin Thomas
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - John N Booth
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Samantha G Bromfield
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Samantha R Seals
- Center of Biostatistics & Bioinformatics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Tanya M Spruill
- Department of Population Health, New York University School of Medicine, New York City, NY, USA
| | - Gbenga Ogedegbe
- Department of Population Health, New York University School of Medicine, New York City, NY, USA
| | - Srividya Kidambi
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Daichi Shimbo
- Department of Medicine, Columbia University, New York City, NY, USA
| | - David Calhoun
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Paul Muntner
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA
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Sherwood A, Smith PJ, Hinderliter AL, Georgiades A, Blumenthal JA. Effects of exercise and stress management training on nighttime blood pressure dipping in patients with coronary heart disease: A randomized, controlled trial. Am Heart J 2017; 183:85-90. [PMID: 27979046 DOI: 10.1016/j.ahj.2016.10.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/17/2016] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Blunted nighttime blood pressure (BP) dipping is prognostic of cardiovascular morbidity and mortality. Patients with coronary heart disease (CHD) are often characterized by a blunted nighttime BP dipping pattern. The present study compared the effects of 2 behavioral intervention programs, aerobic exercise (EX) and stress management (SM) training, with a usual care (UC) control group on BP dipping in a sample of CHD patients. METHODS This was a secondary analysis of a randomized, controlled trial with allocation concealment and blinded outcome assessment in 134 patients with stable CHD and exercise-induced myocardial ischemia. Nighttime BP dipping was assessed by 24-hour ambulatory BP monitoring, at prerandomization baseline and after 16 weeks of one of the following treatments: usual medical care; UC plus supervised aerobic EX for 35 minutes, 3 times per week; UC plus weekly 1.5-hour sessions of SM training. RESULTS The EX and SM groups exhibited greater improvements in systolic BP dipping (P=.052) and diastolic BP dipping (P=.031) compared with UC. Postintervention systolic BP percent-dipping means were 12.9% (SE=1.5) for SM, 11.1% (SE=1.4) for EX, and 8.6% (SE=1.4) for UC. Postintervention diastolic BP percent-dipping means were 13.3% (SE=1.9) for SM, 14.1% (SE=1.8) for EX, and 8.8% (1.8) for UC. CONCLUSIONS For patients with stable CHD, EX or SM training resulted in improved nighttime BP dipping compared with usual medical care. These favorable effects of healthy lifestyle modifications may help reduce the risk of adverse clinical events.
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Thomas SJ, Calhoun D. Sleep, insomnia, and hypertension: current findings and future directions. ACTA ACUST UNITED AC 2016; 11:122-129. [PMID: 28109722 DOI: 10.1016/j.jash.2016.11.008] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/23/2016] [Accepted: 11/26/2016] [Indexed: 11/19/2022]
Abstract
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. Furthermore, a number of mechanisms have been proposed to explain the relationship between insomnia and hypertension. However, few studies have examined these proposed mechanisms, and even fewer clinical trials have been conducted to determine if improved sleep improves BP and/or reverses a nondipping BP pattern. Methodological concerns, particularly with respect to the diagnosis of insomnia, no doubt impact the strength of any observed association. Additionally, a large majority of studies have only examined the association between insomnia symptoms and clinic BP. Therefore, future research needs to focus on careful consideration of the diagnostic criteria for insomnia, as well as inclusion of either home BP or ambulatory BP monitoring. Finally, clinical trials aimed at improving the quality of sleep should be conducted to determine if improved sleep impacts 24-hour BP.
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Affiliation(s)
- S Justin Thomas
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - David Calhoun
- Department of Medicine, Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL, USA
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Albert BB, de Bock M, Derraik JG, Brennan CM, Biggs JB, Hofman PL, Cutfield WS. Non-Dipping and Cardiometabolic Profile: A Study on Normotensive Overweight Middle-Aged Men. Heart Lung Circ 2016; 25:1218-1225. [DOI: 10.1016/j.hlc.2016.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/16/2016] [Accepted: 04/08/2016] [Indexed: 10/21/2022]
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Därr R, Bursztyn M, Pamporaki C, Peitzsch M, Siegert G, Bornstein SR, Eisenhofer G. Dipping in Ambulatory Blood Pressure Monitoring Correlates With Overnight Urinary Excretion of Catecholamines and Sodium. J Clin Hypertens (Greenwich) 2016; 18:921-6. [PMID: 26864704 PMCID: PMC8031512 DOI: 10.1111/jch.12791] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/05/2015] [Accepted: 12/10/2015] [Indexed: 11/30/2022]
Abstract
Nondipping blood pressure (BP) is associated with increased morbidity and mortality. This study examines the relationship of "dipping" in 24-hour ambulatory BP monitoring (ABPM) with awake and sleeping urinary norepinephrine (NE) and epinephrine (EPI), and that of urinary NE and EPI with urinary sodium (UNa). Fifty nondippers and 65 dippers were included in the present study. Collected data included age, sex, body mass index, history of hypertension, current antihypertensive treatment, ABPM data, and NE, EPI, and UNa values. Hierarchical multiple regression analysis with the night-to-day ratio (NDR) of systolic BP as a dependent variable showed that the composite term of the NDRs of urinary NE and EPI was a significant predictor for dipping. Results also show a differential role of NE and EPI in circadian UNa excretion in dippers and nondippers. These results indicate that the sympathetic nervous system is involved in the regulation of circadian BP variations and UNa excretion.
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Affiliation(s)
- Roland Därr
- Department of Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany. ,
| | - Michael Bursztyn
- Department of Medicine, Hypertension Unit, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Christina Pamporaki
- Department of Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Gabriele Siegert
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Stefan R Bornstein
- Department of Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Graeme Eisenhofer
- Department of Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
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Mellman TA, Brown TSH, Kobayashi I, Abu-Bader SH, Lavela J, Altaee D, McLaughlin L, Randall OS. Blood Pressure Dipping and Urban Stressors in Young Adult African Americans. Ann Behav Med 2016; 49:622-7. [PMID: 25623895 DOI: 10.1007/s12160-014-9684-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Blunted nocturnal blood pressure (BP) dipping is an early marker of cardiovascular risk that is prevalent among African Americans. PURPOSE We evaluated relationships of BP dipping to neighborhood and posttraumatic stress and sleep in urban residing young adult African Americans. METHODS One hundred thirty-six black, predominately African American, men and women with a mean age of 22.9 years (SD = 4.6) filled out surveys and were interviewed and had two, 24-h ambulatory BP recordings. RESULTS Thirty-eight percent had BP dipping ratios < .10. Wake after sleep onset (WASO), neighborhood disorder and neighborhood poverty rates but not posttraumatic stress symptoms, and other sleep measures correlated significantly with dipping ratios. Models with the neighborhood measures that also included WASO increased the explained variance. CONCLUSIONS Studies elucidating mechanisms underlying effects of neighborhoods on BP dipping and the role of disrupted sleep, and how they can be mitigated are important directions for future research.
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Affiliation(s)
- Thomas A Mellman
- Department of Psychiatry and Behavioral Sciences, Howard University College of Medicine, 520 W St. N.W., Washington, DC, 20059, USA,
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Blumenthal JA, Sherwood A, Smith PJ, Mabe S, Watkins L, Lin PH, Craighead LW, Babyak M, Tyson C, Young K, Ashworth M, Kraus W, Liao L, Hinderliter A. Lifestyle modification for resistant hypertension: The TRIUMPH randomized clinical trial. Am Heart J 2015; 170:986-994.e5. [PMID: 26542509 PMCID: PMC4636732 DOI: 10.1016/j.ahj.2015.08.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 08/10/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Resistant hypertension (RH) is a growing health burden in this country affecting as many as 1 in 5 adults being treated for hypertension. Resistant hypertension is associated with increased risk of adverse cardiovascular disease (CVD) events and all-cause mortality. Strategies to reduce blood pressure (BP) in this high-risk population are a national priority. METHODS TRIUMPH is a single-site, prospective, randomized clinical trial to evaluate the efficacy of a center-based lifestyle intervention consisting of exercise training, reduced sodium and calorie Dietary Approaches to Stop Hypertension eating plan, and weight management compared to standardized education and physician advice in treating patients with RH. Patients (n = 150) will be randomized in a 2:1 ratio to receive either a 4-month supervised lifestyle intervention delivered in the setting of a cardiac rehabilitation center or to a standardized behavioral counseling session to simulate real-world medical practice. The primary end point is clinic BP; secondary end points include ambulatory BP and an array of CVD biomarkers including left ventricular hypertrophy, arterial stiffness, baroreceptor reflex sensitivity, insulin resistance, lipids, sympathetic nervous system activity, and inflammatory markers. Lifestyle habits, BP, and CVD risk factors also will be measured at 1-year follow-up. CONCLUSIONS The TRIUMPH randomized clinical trial (ClinicalTrials.gov NCT02342808) is designed to test the efficacy of an intensive, center-based lifestyle intervention compared to a standardized education and physician advice counseling session on BP and CVD biomarkers in patients with RH after 4 months of treatment and will determine whether lifestyle changes can be maintained for a year.
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Affiliation(s)
- James A Blumenthal
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC.
| | - Andrew Sherwood
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
| | - Patrick J Smith
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
| | - Stephanie Mabe
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
| | - Lana Watkins
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
| | - Pao-Hwa Lin
- Department of Medicine, Duke University Medical Center, Durham, NC
| | | | - Michael Babyak
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
| | - Crystal Tyson
- Department of Medicine, Duke University Medical Center, Durham, NC
| | - Kenlyn Young
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
| | - Megan Ashworth
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC
| | - William Kraus
- Department of Medicine, Duke University Medical Center, Durham, NC
| | - Lawrence Liao
- Department of Medicine, Duke University Medical Center, Durham, NC
| | - Alan Hinderliter
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
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48
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Kwon Y, Gharib SA, Biggs ML, Jacobs DR, Alonso A, Duprez D, Lima J, Lin GM, Soliman EZ, Mehra R, Redline S, Heckbert SR. Association of sleep characteristics with atrial fibrillation: the Multi-Ethnic Study of Atherosclerosis. Thorax 2015; 70:873-9. [PMID: 25986436 PMCID: PMC5495463 DOI: 10.1136/thoraxjnl-2014-206655] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 04/22/2015] [Indexed: 11/03/2022]
Abstract
BACKGROUND Population-based studies have linked measures of sleep disordered breathing to nocturnally occurring atrial fibrillation (AF) episodes. Whether measures of sleep disordered breathing and sleep quality are associated with prevalent AF has not been studied in an unselected population. We investigated the cross-sectional association with prevalent AF of objectively collected prespecified measures of overnight sleep breathing disturbances, sleep stage distributions, arousal and sleep duration. METHODS AF prevalence, defined by diagnosis codes, study electrocardiography and sleep study were examined among Multi-Ethnic Study of Atherosclerosis (MESA) participants who underwent polysomnography in the MESA Sleep Study (n=2048). MEASUREMENTS AND MAIN RESULTS Higher apnoea hypopnoea index (AHI) was associated with increased odds of AF, although the significance was attenuated after full adjustment for covariates including prevalent cardiovascular disease (OR: 1.22 (0.99 to 1.49) per SD (17/h), p=0.06). Analyses of sleep architecture measures and AF revealed significantly lower odds of AF associated with longer duration of slow wave sleep (OR: 0.66 (0.5 to 0.89) per SD (34 min), p=0.01) which persisted after additionally adjusting for AHI (OR: 0.68 (0.51 to 0.92), p=0.01). Higher sleep efficiency was significantly associated with lower likelihood of AF but the significance was lost when adjusted for AHI. No significant association was present between sleep duration and AF. In a model including AHI and arousal index, the association between AHI and AF was strengthened (AHI: OR 1.49 (1.15 to 1.91) per SD, p=0.002) and a significant inverse association between arousal index and AF was observed (OR 0.65 (0.50 to 0.86) per SD (12/h), p=0.005). CONCLUSIONS In a study of a large multiethnic population, AF was associated with AHI severity, and was more common in individuals with poor sleep quality as measured by reduced slow wave sleep time, a finding that was independent of AHI.
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Affiliation(s)
- Younghoon Kwon
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Sina A. Gharib
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Mary L. Biggs
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - David R. Jacobs
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - Alvaro Alonso
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - Daniel Duprez
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - Joao Lima
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Gen-Min Lin
- Department of Preventive Medicine, Northwestern University, Chicago, IL, USA; Department of Medicine, Hualien-Armed Forces General Hospital, Hualien, Taiwan
| | | | - Reena Mehra
- Department of Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Susan Redline
- Departments of Medicine, Brigham and Women’s Hospital and Beth Israel Deaconess Medical Center; Harvard Medical School, Boston, MA, USA
| | - Susan R. Heckbert
- Department of Epidemiology, University of Washington, Seattle, WA, USA
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49
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Chang LT, Chuang KJ, Yang WT, Wang VS, Chuang HC, Bao BY, Liu CS, Chang TY. Short-term exposure to noise, fine particulate matter and nitrogen oxides on ambulatory blood pressure: A repeated-measure study. ENVIRONMENTAL RESEARCH 2015; 140:634-640. [PMID: 26073201 DOI: 10.1016/j.envres.2015.06.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 05/30/2015] [Accepted: 06/01/2015] [Indexed: 06/04/2023]
Abstract
Exposure to road traffic noise, fine particulate matter (aerodynamic diameter ≤2.5 μm; PM2.5) and nitrogen oxides (NOx) has been associated with transient changes in blood pressure, but whether an interaction exists remains unclear. This panel study investigated whether noise, PM2.5 and NOx exposure were independently associated with changes in 24-h ambulatory blood pressure. We recruited 33 males and 33 females aged 18-32 years as study subjects. Personal noise exposure and ambulatory blood pressure were monitored simultaneously in 2007. During the data collection periods, 24-h data on PM2.5 and NOx from five air-quality monitors within 6 km of participants' home addresses were used to estimate their individual exposures. Linear mixed-effects regression models were used to estimate single and combined effects on ambulatory blood pressure. Exposure to both noise and PM2.5 was significantly associated with increased systolic blood pressure (SBP) and diastolic blood pressure (DBP) over 24h; NOx exposure was only significantly related to elevated DBP. Twenty-four-hour ambulatory blood pressure increased with the current noise exposure of 5 A-weighted decibels (dBA) (SBP 1.44 [95% confidence interval: 1.16, 1.71] mmHg and DBP 1.40 [1.18, 1.61] mmHg) and PM2.5 exposure of 10-µg/m(3) (SBP 0.81 [0.19, 1.43] mmHg and DBP 0.63 [0.17, 1.10] mmHg), as well as the current NOx exposure of 10-ppb (DBP 0.54 [0.12, 0.97] mmHg) after simultaneous adjustment. These findings suggest that exposure to noise and air pollutants may independently increase ambulatory blood pressure and the risk of cardiovascular diseases.
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Affiliation(s)
- Li-Te Chang
- Department of Environmental Engineering and Science, Feng Chia University, Taichung, Taiwan
| | - Kai-Jen Chuang
- Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Wei-Ting Yang
- Department of Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan
| | - Ven-Shing Wang
- Department of Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan
| | - Hsiao-Chi Chuang
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan; Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Bo-Ying Bao
- Department of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Chiu-Shong Liu
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Ta-Yuan Chang
- Department of Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan.
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50
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Bakirci EM, Degirmenci H, Hamur H, Gunay M, Gulhan B, Aydin M, Kucuksu Z, Ceyhun G, Topal E. New inflammatory markers for prediction of non-dipper blood pressure pattern in patients with essential hypertension: Serum YKL-40/Chitinase 3-like protein 1 levels and echocardiographic epicardial adipose tissue thickness. Clin Exp Hypertens 2015; 37:505-10. [PMID: 25919569 DOI: 10.3109/10641963.2015.1013122] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of the present study was to investigate whether YKL-40 levels and epicardial adipose tissue (EAT) thickness were associated with non-dipping pattern in essential hypertension (HT). Age- and sex-matched 40 dipper hypertensive patients and 40 non-dipper hypertensive patients were included in the study. Non-dippers had significantly increased EAT thickness and higher YKL-40 and high-sensitivity C-reactive protein levels than dippers. Multivariate logistic regression analysis showed that the EAT thickness and serum levels of YKL-40 and high-sensitivity C-reactive protein were independent predictors of non-dipping pattern in essential HT. In essential HT, presence of non-dipping pattern is associated with increased inflammatory response.
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Affiliation(s)
| | | | | | | | - Barıs Gulhan
- c Department of Microbiology, Faculty of Medicine , Erzincan University , Erzincan , Turkey
| | - Merve Aydin
- c Department of Microbiology, Faculty of Medicine , Erzincan University , Erzincan , Turkey
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