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AD(Alzheimer's disease)についての研究 整理①

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AD研究についての準備

目的

AD患者およびその親族の負担を軽減し、一人でも多くの人を救済

ゴール

ADのメカニズム解明

手順

全体像

フェーズ 目的 主ツール
① 知識統合 既知メカニズムの構造化 PubTator / BEL / Neo4j
② 仮説生成 病態ネットワークから新規経路抽出 Knowledge Graph + GNN
③ 標的探索 有望ターゲット抽出 PyTorch Geometric
④ 分子設計 リード化合物生成 MolBERT / Diffusion Models
⑤ in silico評価 結合予測 AlphaFold2 / DiffDock
⑥ 再学習 実験結果でモデル改善 Active Learning

病態知識のAI化

ツール

用途 ツール
文献構造化 PubTator / BioBERT
因果関係抽出 INDRA / BEL
知識格納 Neo4j

やること ① 知識統合

1.PubMedからAD論文を自動収集
2.BioBERTでGene – Protein – Pathway – Phenotypeを自動抽出
3.Neo4jで アルツハイマー病態Knowledge Graph を構築

Phase 1|アルツハイマー病態 Knowledge Graph 構築

🔧環境構築

pip install biopython transformers torch torch-geometric neo4j spacy scispacy
pip install indra pybel

📄 論文自動収集

thesis.py
from Bio import Entrez
Entrez.email = "your@mail.com"```

handle = Entrez.esearch(db="pubmed", term="Alzheimer's disease", retmax=2000)
ids = Entrez.read(handle)["IdList"]

🧬 因果関係抽出(INDRA)

INDRA.py
from indra.sources import pubmed

stmts = []
for pmid in ids[:100]:
    try:
        stmts += pubmed.process_pmid(pmid).statements
    except:
        pass

🧠 Knowledge Graph化

graph.py
from neo4j import GraphDatabase

driver = GraphDatabase.driver("bolt://localhost:7687", auth=("neo4j","password"))

with driver.session() as s:
    for st in stmts:
        if hasattr(st, "subj") and hasattr(st, "obj"):
            s.run("""
            MERGE (a:Entity {name:$a})
            MERGE (b:Entity {name:$b})
            MERGE (a)-[:CAUSES]->(b)
            """, a=str(st.subj), b=str(st.obj))

これにはconda環境とJupyterLabへの接続が必要。

これ以降は次回に書く。以上。

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