对斑马鱼在不可预测的慢性压力下肠-大脑轴失调的代谢洞察力
Zhang Yizhu1, Zaynab Mando2, Zenab Aldurrah3
1School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia.
概括
被暴露在不可预测的慢性压力 (UCS) 的斑马鱼表现出类似抑郁症的行为和肠-大脑轴的破坏. 这项研究强调斑马鱼是压力和抑郁症研究的宝贵模型.
科学领域:
- 神经科学是一个神经科学.
- 行为科学 行为科学
- 代谢学 代谢学 代谢学
背景情况:
- 抑郁症与肠-大脑轴障碍有关.
- 斑马鱼为研究抑郁症提供了一个有希望的替代模型.
- 无法预测的慢性压力 (UCS) 是抑郁症的一个关键因素.
研究的目的:
- 在UCS的斑马鱼模型中调查神经内分泌和神经化学变化.
- 评估响应UCS的行为修改.
- 探索肠-大脑轴在UCS诱导的类似抑郁的行为中的作用.
主要方法:
- 一个14天不可预测的慢性压力 (UCS) 程序在斑马鱼.
- 行为测试:开放场测试 (OFT),社交互动测试 (SIT),光暗测试 (LDT).
- 神经内分泌和神经化学分析:大脑和肠道组织的全身皮质醇,IL-1β和基于NMR的代谢学.
主要成果:
- UCS斑马鱼表现出增加的不动性和受损的社会互动.
- 在UCS斑马鱼中观察到皮质醇和IL-1β水平升高.
- 代谢学揭示了氨基酸代谢 (氨酸,氨酸,谷氨酸,胆) 的变化和扰乱的甘氨酸,氨酸和氨酸路径,表明被破坏的氧化还原稳定和神经炎症.
结论:
- 斑马鱼在UCS下表现出类似抑郁症的行为和肠-大脑轴的改变.
- 代谢变化表明受损的氧化还原稳定和神经炎症有助于抑郁症的病理生理学.
- 斑马鱼是研究UCS及其对肠-大脑轴的影响的宝贵模型.
相关概念视频
Hypothalamic-Pituitary Axis
65.7K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
65.7K
Perpendicular-Axis Theorem
4.5K
The perpendicular-axis theorem states that the moment of inertia of a planar object about an axis perpendicular to its plane is equal to the sum of the moments of inertia about two mutually perpendicular concurrent axes lying in the plane of the body.
Consider a circular disc of mass M and radius R lying along an x-y plane. The origin lies at the center of the disc, and the z-axis is perpendicular to the disc's plane. All three axes coincide at the disc's center. The moment of inertia of this...
Consider a circular disc of mass M and radius R lying along an x-y plane. The origin lies at the center of the disc, and the z-axis is perpendicular to the disc's plane. All three axes coincide at the disc's center. The moment of inertia of this...
4.5K
Parallel-axis Theorem
8.2K
The parallel-axis theorem provides a convenient and quick method of finding the moment of inertia of an object about an axis parallel to the axis passing through its center of mass. Consider a thin rod as an example. There is a striking similarity between the process of finding the moment of inertia of a thin rod about an axis through its middle, where the center of mass lies, and about an axis through its end using the conventional method. In the conventional method, the concept of linear mass...
8.2K
Moment of Inertia about an Arbitrary Axis
619
The moment of inertia is typically associated with principal axes, but it can also be computed for any random axis. When an arbitrary axis is under consideration, the moment of inertia is determined by integrating the mass distribution of the object along that specific axis. It is crucial in applications like the design of machinery, where components rotate about various axes, and balance and stability are essential.
In this scenario, the perpendicular distance between the chosen arbitrary axis...
In this scenario, the perpendicular distance between the chosen arbitrary axis...
619
Angular Momentum about an Arbitrary Axis
444
Imagine a rigid body with a mass denoted as 'm', which has its center of mass at point G and is rotating around an inertial reference frame. The angular momentum at an arbitrary point P can be calculated by taking the cross product of the position vector and linear momentum vector for each individual mass element.
The velocity of a mass element comprises its translational velocity and the relative velocity instigated by the body's rotation. Substituting the velocity equation into...
The velocity of a mass element comprises its translational velocity and the relative velocity instigated by the body's rotation. Substituting the velocity equation into...
444
Moment of a Force About an Axis: Scalar
677
The moment of a force about an axis is a crucial concept in mechanics that helps determine an object's rotational motion around a specific point or axis. The moment of force can be calculated using scalar analysis, which involves considering the perpendicular distance between the axis of rotation and the line of action of the force or simply the moment arm.
To better understand the concept of moment of force, consider the example of a cyclist riding a bicycle. When the cyclist applies force on...
To better understand the concept of moment of force, consider the example of a cyclist riding a bicycle. When the cyclist applies force on...
677


