拉利丁对谷氨酸脱碳酶的表达和抑制突触发育的影响
1College of Pharmacy, Chosun University, Gwangju, South Korea.
Journal of Asian natural products research
|May 16, 2024
概括
发自Psoralea corylifolia的psoralidin可以降低谷氨酸脱碳酶 (GAD) 水平和抑制突触. 这种化合物影响神经传递平衡,可能影响神经系统疾病.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 分子生物学分子生物学
背景情况:
- 胺黄油酸 (GABA) 是一种关键的抑制性神经递质,对维持大脑中激发/抑制平衡至关重要.
- 谷氨酸脱碳酶 (GADs) 合成GABA,它们的活性与GABA水平和神经传播密切相关.
- 改变的GAD和GABA功能与各种神经系统疾病有关,这凸显了它们对大脑健康的重要性.
研究的目的:
- 研究Psoralea corylifolia种子中的化合物psoralidin对GAD水平和调节机制的影响.
- 探索psoralidin对神经元培养中的突触形成的影响.
主要方法:
- 主要皮层神经元被用psoralidin治疗,以评估其对GAD水平的影响.
- 研究了转录调节机制,以了解psoralidin如何影响GAD表达.
- 主要海马神经元被用来评估psoralidin对抑制突触形成的影响.
主要成果:
- 松拉利丁通过转录调节显著降低了GAD67的表达,这是一个关键的GAD异型,通过转录调节.
- 观察到,psoralidin对GAD67的降低独立于N-甲基-D-酸盐受体活性.
- 松拉利丁治疗导致海马神经元中抑制性突触的形成减弱.
结论:
- 松拉利丁调节GABAergic系统组件,特别是通过通过转录控制减少GAD67的表达.
- 这些发现表明,psoralidin通过影响抑制突触发育来影响神经元刺激性.
- 松拉利丁对GABAergic系统的影响需要进一步研究神经疾病中潜在的治疗应用.
相关概念视频
Antiepileptic Drugs: Glutamate Antagonists
321
Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
321
Drugs Affecting Neurotransmitter Synthesis
1.4K
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase,...
1.4K
Ligand-Gated Ion Channel Receptor: Gating Mechanism
2.2K
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
2.2K
GPCR Desensitization
6.0K
G protein-coupled receptor (GPCR) signaling plays a crucial role in cell functioning. GPCR desensitization is an equally essential process. It allows cells to respond to changing environments and regain sensitivity to new stimuli while preventing unnecessary stimulation when no longer needed. Prolonged exposure to stimuli leads to GPCR desensitization. It involves blocking the receptors from binding and activating additional G proteins. This inhibits activation of downstream effectors, thereby...
6.0K
Excitatory and Inhibitory Effects of Neurotransmitters
9.9K
When an action potential reaches the presynaptic axon terminal, it releases neurotransmitters from the neuron into the synaptic cleft at a chemical synapse. The released neurotransmitter can be excitatory or inhibitory. The critical criteria commonly used to determine whether a molecule is a neurotransmitter at a chemical synapse are the molecule's presence in the presynaptic neuron. Second, its release is in response to strong presynaptic depolarization. And lastly, the presence of...
9.9K
Postsynaptic Potential (PSP)
2.5K
Postsynaptic potential (PSP) refers to a change in the electrical potential of a neuron when neurotransmitters released by presynaptic neurons bind to postsynaptic receptors. This potential can either be excitatory, leading to depolarization and ultimately action potential generation, or inhibitory, leading to hyperpolarization and suppression of the postsynaptic neuron.
There are two types of receptors: ionotropic and metabotropic.
The ionotropic receptor is the membrane protein that has an...
There are two types of receptors: ionotropic and metabotropic.
The ionotropic receptor is the membrane protein that has an...
2.5K


