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Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

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Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
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Alzheimer's Disease: Treatment01:22

Alzheimer's Disease: Treatment

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Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
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Dementia01:30

Dementia

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Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
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Parkinson's Disease: Overview01:15

Parkinson's Disease: Overview

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Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...
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Role of Neurotransmitters in Memory01:23

Role of Neurotransmitters in Memory

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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.
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Amyloid Fibrils03:03

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Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils. 
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アルツハイマー病 の 進行 に 関する 重要 な 要素

Dania Khalid1, Amber Afroz1, Hammad Ismail1

  • 1Department of Biochemistry and Biotechnology, University of Gujrat, Gujrat, Pakistan.

Central nervous system agents in medicinal chemistry
|September 5, 2025
PubMed
まとめ

アルツハイマー病 (AD) は,タンパク質の異常と神経伝達物質の不均衡による認知の低下を伴う. 研究は,潜在的な治療戦略のために,天然製品と糖尿病との関連を調査しています.

キーワード:
アルツハイマー病アセチルコリンエステラゼアミロイドベータタンパク質ドーパミン自然植物産物ですセロトニン

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科学分野:

  • 神経科学
  • 生物化学
  • 遺伝学

背景:

  • アルツハイマー病 (AD) は,特に60歳以上の個人に認知機能に影響を与える進行性神経変性疾患で,若い成人では増加しています.
  • アルツハイマー病の正確な原因は不明で 標的薬の開発を妨げています
  • 主な関与要因には,変異したタウタンパク質,アミロイドβ,コレリン受容体,神経伝達物質の不均衡 (ドーパミン,セロトニン),ミトコンドリア機能障害,および炎症が含まれます.

研究 の 目的:

  • アルツハイマー病の多面的な生物学的基盤を 検討する.
  • アルツハイマー病と糖尿病との関連を含む新興の研究分野を強調する.
  • ADの治療における天然製品の可能性を探求する.

主な方法:

  • 既存の科学文献とトランスクリプトミクス/プロテオミクス分析のレビュー
  • アルツハイマー病における遺伝子とタンパク質の異常を調査する.
  • ADの病原性に関与する細胞経路の検査

主要な成果:

  • トランスクリプトミクスとプロテオミクスを通してADに関与する相互接続された遺伝子とタンパク質の識別.
  • アルツハイマー病と糖尿病の関連性を示す証拠
  • ミトコンドリア機能障害,カルシウムシグナル伝達,炎症を重要な要因として認識する.

結論:

  • アルツハイマー病の病原性は複雑で 遺伝的,タンパク質的,細胞的経路の障害が含まれています
  • 糖尿病との関連は新しい研究方向性を示しています
  • 天然製品はADとその症状を緩和する 将来の治療薬として有望です