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Diseases of the Liver and Gallbladder01:26

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Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
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In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
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Hepatitis

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Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver.
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Cirrhosis II: Pathophysiology01:24

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Chronic Pancreatitis II: Pathophysiology01:21

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Chronic pancreatitis is a progressive and irreversible inflammation of the pancreas, most often caused by long-term alcohol abuse, but it can also be related to ductal obstruction, smoking, or genetic factors.Chronic pancreatitis occurs when the pancreas is repeatedly exposed to harmful agents like alcohol, smoking, ductal obstruction, or genetic predisposition. These factors lead to the release of toxic metabolites and inflammatory cytokines, sustaining chronic inflammation in the pancreatic...
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Assessing Hepatic Metabolic Changes During Progressive Colonization of Germ-free Mouse by 1H NMR Spectroscopy
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肝炎B関連肝疾患の代謝プロファイリング 慢性肝炎B,肝硬変,肝細胞癌

Junsang Oh1, Kei-Anne Garcia Baritugo1, Jayoung Kim1,2

  • 1Biomedical Institute of Mycological Resource, International St. Mary's Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Republic of Korea.

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まとめ

血液中の6つの主要な代謝産物であるイソルエシンとピルバートは,慢性B型肝炎 (CHB) の異なる段階および肝硬変と癌への進行のためのバイオマーカーとして潜在的に示されています.

キーワード:
1H-NMRB型肝炎ウイルス代謝経路についてメタボロミクス多変量分析血清代謝産物

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科学分野:

  • ヘパトロジー
  • メタボロミクス
  • バイオマーカーの発見

背景:

  • B型肝炎 (HBV) 感染は慢性B型肝炎 (CHB) に繋がる可能性があります.
  • CHBは肝硬変 (CHB-LC) や肝細胞癌 (CHB-HCC) などの重症な肝疾患に進行する可能性があります.
  • ステージ固有のバイオマーカーを特定することは,HBVの進行を制御するために極めて重要です.

研究 の 目的:

  • HBV 感染の異なる臨床段階における ステージ固有の血清代謝生物マーカーを特定する.
  • バイオマーカーの発見のために1H-NMRベースのメタボロミクスを利用する.
  • HBVの進行に関連する代謝経路を理解する.

主な方法:

  • 1H-NMRベースのメタボロミクスを用いて血清サンプルを分析した.
  • 単変数および多変数統計分析 (FDRによるANOVA,OPLS-DA,VIPスコア) を実施した.
  • 異なるHBV感染段階における識別性代謝産物と検証された代謝産物

主要な成果:

  • 64の血清代謝産物と6つの主要な差別代謝産物が見つかりました.
  • イソレウシン,トリプトファン,ヒスタミンはCHBにおいて有意であった.
  • ピルバート,TMAO,および乳酸はCHB- HCCにおいて有意であった.
  • これらの代謝物はプロパノ酸代謝,ピルバ酸代謝,およびウォーバーグ効果と関連しています.

結論:

  • 特定された6つの代謝物は,CHB,CHB-LC,CHB-HCCのステージ固有のバイオマーカーとして有望である.
  • これらの発見は,メタボロミクスベースの診断ツールの開発をサポートします.
  • HBV感染における将来のメタボロミクス主導の治療戦略の基礎を提供する.