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相关概念视频

Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

247
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
247
Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

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The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle.  At puberty, GnRH secretion increases in both frequency and...
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Feedback Regulation of Calcium Concentration01:27

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Calcium is an essential signaling molecule required for various cellular functions. Calcium pumps and ion channels on cell and organellar membranes, such as those on the endoplasmic reticulum (ER), regulate calcium concentrations inside the cell. They remain closed, keeping the cytosolic calcium levels low at a resting state.
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
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相关实验视频

Updated: May 21, 2025

Rapid Golgi Stain for Dendritic Spine Visualization in Hippocampus and Prefrontal Cortex
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Rapid Golgi Stain for Dendritic Spine Visualization in Hippocampus and Prefrontal Cortex

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雌性循环调节海马脊柱动态,树突处理和空间编码.

Nora S Wolcott1, William T Redman2, Marie Karpinska3

  • 1Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.

Neuron
|May 14, 2025
PubMed
概括
此摘要是机器生成的。

雌性雌性循环显著影响海马CA1神经元的结构和功能. 脊柱密度和位置场稳定性在孕期是最高的,影响学习和记忆.

关键词:
树突一体化是指树突一体化.雌二醇是雌二醇的一种药物.雌性周期的雌性周期在海马体内,海马体多光子成像成像技术神经内分泌神经内分泌位置细胞 细胞 位置细胞脊柱形态学 脊柱形态学

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Investigating Long-term Synaptic Plasticity in Interlamellar Hippocampus CA1 by Electrophysiological Field Recording
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Recording Spatially Restricted Oscillations in the Hippocampus of Behaving Mice
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相关实验视频

Last Updated: May 21, 2025

Rapid Golgi Stain for Dendritic Spine Visualization in Hippocampus and Prefrontal Cortex
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Rapid Golgi Stain for Dendritic Spine Visualization in Hippocampus and Prefrontal Cortex

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Investigating Long-term Synaptic Plasticity in Interlamellar Hippocampus CA1 by Electrophysiological Field Recording
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科学领域:

  • 神经科学是一个神经科学.
  • 细胞生物学 细胞生物学
  • 生殖生物学 生殖生物学

背景情况:

  • 众所周知,雌性周期会影响哺乳动物海马体.
  • 精确的机理,以哪个气周期影响CA1神经元动态和空间编码在体内还不清楚.

研究的目的:

  • 为了研究雌性循环对CA1金字塔神经元树突脊柱动态的体内影响.
  • 为了检查这些变化如何影响海马的空间编码和神经元功能在整个雌性周期.

主要方法:

  • 在雌性小鼠体内进行体内成像时使用定制的海马微观镜.
  • 采用双光子成像来追踪CA1金字塔神经元在多个雌性周期.
  • 监测树突脊柱密度,体树突合和反向传播行动潜力的透.
  • 在导航任务中评估CA1神经元响应特性,以评估位置场稳定性.

主要成果:

  • 在CA1神经元中,状脊柱密度在前期达到峰值,与高雌激素水平相吻合.
  • 形态变化与增加的体腺合和增强的反向传播行动潜能透有关.
  • 在单细胞和种群层面的位置场稳定性在前期显著更大.

结论:

  • 雌性循环在海马CA1神经元中诱导了相当大的结构和功能可塑性.
  • 这些循环依赖的变化对于维持学习和记忆所必需的稳定空间表征至关重要.