Sleep and Circadian Contributions to Nighttime Blood Pressure Rhythms (SCN-BP)

睡眠和昼夜节律对夜间血压节律 (SCN-BP) 的影响

• 批准号: 10577473
• 负责人: Stephen J Thomas
• 金额: $ 61.18万
• 依托单位: UNIVERSITY OF ALABAMA AT BIRMINGHAM
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-06-01 至 2028-05-01
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10577473
• 关键词: Academic Medical Centers; Activities of Daily Living; Address; Age; Alabama; Ambulatory Blood Pressure Monitoring; Antihypertensive Agents; Behavior Therapy; Behavioral; Biological; Blood Pressure; Blood Pressure Monitors; Body Temperature; California; Cardiovascular Diseases; Cessation of life; Characteristics; Chronotherapy; Circadian Rhythms; Clinical; Clinical Sciences; Data; Detection; Development; Educational workshop; Ethnic Origin; Future; Home Blood Pressure Monitoring; Hour; Human; Hypertension; Intervention; Jet Lag Syndrome; Light; Los Angeles; Low Prevalence; Measurement; Melatonin; Morbidity - disease rate; National Heart, Lung, and Blood Institute; New York; Organ; Participant; Pattern; Persons; Pharmaceutical Preparations; Phase; Phenotype; Play; Population; Population Sciences; Posture; Prevalence; Protocols documentation; Questionnaires; Race; Research; Role; Salivary; Sampling; Site; Sleep; Sleep Fragmentations; Strategic Planning; System; Time; Universities; Wrist; actigraphy; age difference; awake; blood pressure control; blood pressure reduction; cardiovascular disorder risk; circadian; cohort; design; feeding; improved; mortality; participant enrollment; precision medicine; prevent; primary outcome; secondary outcome; sex; shift work; sleep behavior; social; therapy development

Project Summary High asleep systolic blood pressure (SBP) and a non-dipping blood pressure (BP) pattern (a <10% decrease in SBP from being awake to asleep) are very common, each with a prevalence >30%, and both are associated with a 1.5 to 3-fold increased risk for cardiovascular disease (CVD) morbidity and mortality. Circadian and sleep-related factors are two of the most likely contributors to high asleep SBP and non-dipping BP. A better understanding of both circadian and sleep contributions, as well as the alignment between sleep behaviors and chronotype, to asleep BP levels and rhythms will allow for the development of interventions to lower asleep BP, restore BP dipping, and reduce BP-related CVD. The overall objective of the proposed study is to determine the associations of chronotype and sleep-related factors with mean BP, and BP dipping (Aim 1); the association of alignment between sleep timing and chronotype with mean BP, and BP dipping (Aim 2); and the association of circadian phase and amplitude with BP dipping under constant conditions (Aim 3). The proposed study, titled “Sleep and Circadian Contributions to Nighttime Blood Pressure (SCN-BP)” will achieve Aims 1 and 2 by collecting sleep and circadian data using questionnaires and wrist actigraphy as part of a large, diverse cohort of research participants at 3 sites (the University of Alabama at Birmingham [UAB], Columbia University Medical Center, and Kaiser Permanente Southern California). SCN-BP will then enroll participants who successfully complete Aims 1 and 2 at UAB to complete a 30-hour Constant Routine (CR) Protocol to determine circadian phase and amplitude, as well as BP levels under constant conditions. Findings from the proposed study will provide data that are critical to understand two of the most likely factors that contribute to high asleep BP and non-dipping BP, as well as generate preliminary data to examine the impact of non-sleep factors (e.g., feeding) on asleep BP levels and dipping. The proposed study is unique in that it will combine population science approaches in Aims 1 and 2 with basic/clinical science approaches in Aim 3 in a large, diverse sample sufficiently powered to examine differences by age, sex, race/ethnicity, and antihypertensive medication use. The proposed study will allow for the development of interventions to lower asleep BP, restore BP dipping, and reduce BP-related CVD.

项目总结