神経可塑性と微生物群:微生物が脳の変化にどのように影響するか
Abdullah Al Noman1, Abdulrahman Mohammed Alhudhaibi2, Moushumi Afroza3
1School of Pharmacy, BRAC University, Dhaka, Bangladesh.
Frontiers in microbiology
|September 5, 2025
まとめ
腸内微生物群は 脳の可塑性や精神的な健康に 大きく影響します 腸内細菌を標的とした介入は神経可塑性を高め 神経学的および精神的疾患の治療に有望である.
科学分野:
- 神経科学
- 微生物学
- 精神科
背景:
- ニューロプラスティシティは 伝統的に外的要因と結びついています
- 新しい証拠は腸内微生物群が 腸-脳軸を通過していることを示しています
- 微生物の不均衡 (ディスバイオシス) は神経学的および精神的状態と関連しています.
研究 の 目的:
- 腸内微生物群が神経可塑性に影響するメカニズムを見直す.
- 統合失調症と精神疾患の関連を調べる
- 脳の健康のための微生物群を標的とした介入を評価する.
主な方法:
- 動物とヒトの研究の文献レビュー
- 微生物の代謝産生,免疫調節,神経伝達物質合成,ホルモン調節の分析
- プロバイオティクス,プレバイオティクス,食事の効果の検討
主要な成果:
- 腸内微生物は様々な生化学的経路を通して 神経可塑性を調節します
- ディスバイオシスは神経発達障害,重度のうつ病 (MDD),認知機能低下と関連しています.
- 微生物群を標的とした介入は神経可塑性を改善する可能性がある.
結論:
- 腸内微生物群は 脳の可塑性や精神的健康に 重要な役割を果たします
- マイクロバイオームベースの治療は 精神的・神経学的健康に 新しいアプローチを提供します
- 直接的な微生物とニューロンの相互作用に関するさらなる研究が必要である.
関連する概念動画
Neuroplasticity
749
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
749
Microorganisms in Medicine and Therapeutics
311
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
311
Role of Neurotransmitters in Memory
959
Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
959
Excitatory and Inhibitory Effects of Neurotransmitters
10.7K
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...
10.7K
Neurogenesis and Regeneration of Nervous Tissue
1.0K
In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
1.0K
Long-term Potentiation
55.8K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
55.8K


