虹膜颜色和对交感动脉比率的日夜变化
Şahbender Koç1, Aslı Enzel Koç1,2
1Ankara Ataturk Sanatorium Training and Research Hospital, Ankara, Turkey.
Sleep and biological rhythms
|March 25, 2024
概括
虹膜图案影响自主神经系统活动. 特定的棕色虹膜颜色与同情节比的明确日夜变化相关,这表明虹膜颜色可能预测某些健康状况.
科学领域:
- 眼科和神经科学 眼科和神经科学
- 自主神经系统的调节规则
- 循环节生物学 循环节生物学
背景情况:
- 虹膜黑色细胞通过副交感和交感神经末端进行内化.
- 暴露于光线会通过视网膜 - 脑下垂体通路影响自主神经系统 (ANS) 活动.
- 单个ANS活动的变化,特别是交感血管比率,可能与可观测的特征有关,例如虹膜模式.
研究的目的:
- 为了测试这一假设,即同情管比率 (LF/HF) 的日夜变化在具有明显棕色虹膜图案的个体之间有所不同.
- 调查虹膜颜色作为预测因素的潜力,用于涉及昼夜ANS活动变化的疾病.
主要方法:
- 621名健康成年人 (16-50岁) 与棕色的眼睛被分类为特定的虹膜颜色组,基于数字摄影分析的图片色彩分析器RBG软件.
- 使用中央/外围 (R/RGB) 比率实现了客观虹膜颜色区分.
- 24小时的霍尔特心电图监测评估了同情血管比率 (LF/HF) 从白天到晚上的变化.
主要成果:
- 在不同虹膜颜色组 (p < 0.001) 中观察到交感血管比率 (LF/HF) 的日夜变化有显著差异.
- 1-1db虹膜组显示夜间LF/HF比率下降的频率最高 (65.7%),而2-0g组显示夜间LF/HF比率上升的频率最高 (76.5%).
结论:
- 虹膜颜色模式与自主神经系统活动的明显的日间变化有关.
- 研究结果表明,虹膜颜色可能作为一种潜在的生物标志物,用于预测受昼夜ANS失调影响的条件的易感性.
更多相关视频
09:04Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
Published on: February 20, 2018
12.6K
04:44Author Spotlight: Enhancing Vascular Function and Physical Capacity in Cardiovascular Disease Through Novel Interventions and NIRS Technology
Published on: March 22, 2024
920
相关概念视频
Sympathetic Activation
5.3K
The sympathetic division can influence tissues and organs by releasing norepinephrine at peripheral synapses and distributing epinephrine and norepinephrine through the bloodstream. In times of crisis or stress, sympathetic activation occurs, which is regulated by sympathetic centers in the hypothalamus. As a result, sympathetic activation prepares the body for physical exertion, rapid ATP production, and heightened alertness, allowing individuals to respond effectively to challenging or...
5.3K
Factors Influencing Heart Rate
2.6K
The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
2.6K
Regulation of Heart Rates
1.8K
The regulation of heart rate is a complex process controlled by the autonomic nervous system (ANS), hormonal influences, and intrinsic cardiac mechanisms. The ANS has two main components: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
1.8K
Regulation of Pulse
1.3K
Pulse regulation involves physiological mechanisms that ensure adequate blood flow throughout the body. The heartbeat, regulated by the autonomic nervous system, is influenced by hormonal balance, physical activity, and emotional state.
1.3K
Sympathetic Division of the ANS
1.8K
The sympathetic division of the autonomic nervous system (ANS) plays a crucial role in preparing the body for stress, physical activity, and increased energy demands. This division activates the "fight-or-flight" response, enabling individuals to respond effectively to challenging situations.
Originating in the thoracic and lumbar spinal cord segments, the preganglionic fibers of the sympathetic division exit the spinal cord through the white ramus communicans. They then enter the...
Originating in the thoracic and lumbar spinal cord segments, the preganglionic fibers of the sympathetic division exit the spinal cord through the white ramus communicans. They then enter the...
1.8K
Imbalances in Cardiac Output
1.4K
The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
1.4K
