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Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
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Gastroesophageal reflux disease, or GERD, is a persistent medical condition that affects many individuals worldwide. Its clinical manifestations can vary greatly, making diagnosis and management challenging for healthcare professionals. The following is a comprehensive overview of the clinical manifestations, assessment, and management strategies for GERD.
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臨床所見

Anat Yaskolka Meir1, Ana W Capuano2, Xingyan Wang1

  • 1Harvard T.H. Chan School of Public Health, boston, MA, USA.

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まとめ
この要約は機械生成です。

本研究により、筋肉ペプチドがアルツハイマー病(AD)の病理と相関し、血清ペプチドがADにおけるインスリン抵抗性と関連することが明らかになった。これらの発見は、ADの末梢バイオマーカーの可能性を示唆している。

キーワード:
アルツハイマー病糖尿病プロテオームバイオマーカー筋肉血清インスリン抵抗性

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科学分野:

  • 神経科学、メタボロミクス、老年医学

背景:

  • アルツハイマー病(AD)は、脳におけるタンパク質発現の変化と関連している。AD認知症と糖尿病(DM)の関係は知られているが、ADおよびDMとの組織横断的なプロテオーム関連性は十分に探求されていない。

研究 の 目的:

  • アルツハイマー病(AD)および糖尿病(DM)の有無にかかわらず、高齢者を対象とした中枢末梢プロテオーム関連性を調査する。AD病理およびインスリン抵抗性(IR)の末梢バイオマーカーの可能性を特定する。

主な方法:

  • ラッシュメモリおよびエイジングプロジェクト(MAP)のデータを利用した。死後ヒト脳前頭前野、三角筋、および生前の血清サンプルのTMTベースのホスホプロテオームプロファイリングを実施した。DMの有無に基づいて参加者をマッチングし、NIA-AA病理基準を用いてADの有無を決定した。

主要な成果:

  • 脳組織間、および脳と筋肉組織間、脳と血清間で、リン酸化ペプチドと非リン酸化ペプチドの間に有意な重複が観察された。筋肉のリン酸化ペプチドは、AD関連脳ペプチドと相関し、筋肉収縮や神経変性疾患などの経路で濃縮されていた。血清のリン酸化ペプチドは、インスリン抵抗性(IR)経路で濃縮されており、ADにおけるIRとの関連を示唆していた。

結論:

  • 筋肉ペプチドは主に病理的ADと関連していたが、血清ペプチドはADにおけるIRとより強く関連していた。本研究は、末梢ADバイオマーカー発見のための組織横断的ペプチド分析の可能性を強調した。中枢および末梢ペプチド発現間の相互作用は、ADの病因に関する新たな洞察を提供する可能性がある。