一个生物物理综合模型的泌尿 afferent神经元:影响在泌尿膀的感官信号
Satchithananthi Aruljothi1, Rohit Manchanda2
1Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, Maharashtra, India.
Journal of computational neuroscience
|February 12, 2024
概括
这项研究模拟了泌尿道 afferent神经元 (UAN),以了解膀的感觉信号. 该模型揭示了控制UAN兴奋性的关键离子通道机制,以及与非urothelial afferent神经元 (NUAN) 的差异.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 神经科学是一个神经科学.
- 计算生物学 计算生物学
背景情况:
- 尿膜,膀的内膜,对于感官传导和屏障功能至关重要.
- 尿细胞与膀 afferent神经元进行通信,通过释放的信号分子调节膀活动.
- 目前对泌尿器附带神经元 (UAN) 功能和离子通道组成的理解是有限的.
研究的目的:
- 开发UAN的计算模型,以阐明其刺激性的离子机制.
- 使用实验数据验证模型,并将UAN与非urothelial afferent神经元 (NUAN) 进行比较.
主要方法:
- 构建了一个生物物理详细的UAN模型,包含已知的离子通道 (例如,,,,TRP,BK,SK,HCN,CaCC).
- 使用基于文献的实验数据来限制和验证该模型,以检测通道属性和神经元发射.
- 利用验证的UAN模型作为开发NUAN模型的基础.
主要成果:
- 该UAN模型准确地复制了对电流和电压协议的实验反应.
- 该模型为UAN电活动所必需的特定离子通道组成提供了洞察力.
- 确定了UAAN和NUAN之间离子通道表达的差异.
结论:
- 开发的UAN模型为研究膀 afferent信号提供了一个强大的平台.
- 这项研究增强了对膀感官传导的生物物理基础的理解.
- 该模型有助于未来对神经膀疾病和治疗点的研究.
相关概念视频
01:26The Micturition Reflex
620
Urination, or micturition involves the coordination of the bladder's detrusor muscle and two sphincters to ensure controlled bladder emptying.
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...
620
01:23Urinary Bladder
693
The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
693
01:22Ureters
488
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
488
01:13Introduction to Urinary System
2.6K
The urinary system consists of two kidneys, two ureters, the urinary bladder, and the urethra.
The kidneys are bean-shaped organs located in the retroperitoneal space, on either side of the vertebral column, between the T12 and L3 vertebrae. They are partially protected by the rib cage and surrounded by perirenal fat, which provides cushioning. They are responsible for urine formation and play critical roles in regulating blood pressure, electrolyte levels, and hormone production. The ureters...
The kidneys are bean-shaped organs located in the retroperitoneal space, on either side of the vertebral column, between the T12 and L3 vertebrae. They are partially protected by the rib cage and surrounded by perirenal fat, which provides cushioning. They are responsible for urine formation and play critical roles in regulating blood pressure, electrolyte levels, and hormone production. The ureters...
2.6K
01:30Parasympathetic Signaling
1.9K
Parasympathetic signaling plays a crucial role in regulating various physiological processes. It involves the release of acetylcholine (ACh) by parasympathetic neurons, which can have localized and short-lived effects. The majority of ACh released is rapidly inactivated at the synapse by the enzyme acetylcholinesterase (AChE), which hydrolyzes Ach into choline and acetate. Additionally, the tissue cholinesterase deactivates any ACh diffusing into the surrounding tissues.
The effects of...
The effects of...
1.9K