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pH Homeostasis01:31

pH Homeostasis

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Acid-base homeostasis is essential for maintaining normal physiological activities in humans. The pH of various body fluids is strictly regulated because it is critical for the optimal activity of enzymes involved in metabolic reactions. Enzymes are basically proteins, so, any significant change in pH can affect their structure and activity. In humans, pH is regulated using three primary mechanisms— chemical buffer systems, respiratory regulation, and renal regulation.
Respiratory...
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Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

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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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Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.
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Calcium and phosphate are essential electrolytes in the human body, with calcium being the most abundant mineral. Around 99% of the body's calcium is stored in the skeleton and teeth, forming a crystal lattice of mineral salts in combination with phosphates. Calcium plays crucial roles in various bodily functions such as blood clotting, neurotransmitter release, muscle tone maintenance, and nervous and muscle tissue excitability.
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成人におけるアルカリリンリンファステーゼ総量の基準間隔

Line Philipsen1, Lærke Andersen1, Stine Linding Andersen1,2

  • 1Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark.

Scandinavian journal of clinical and laboratory investigation
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まとめ

アルカリリンフォスファターゼ (ALP) の一貫した基準間隔を確立することは,肝臓と骨の疾患の診断に極めて重要です. この研究では,複数の実験方法で成人ALPの基準間隔を決定し,デンマークで統一された40-120 IU/Lの範囲に至った.

キーワード:
バイオケミストリー バイオケミストリービール ビール ビール ビール骨 骨 骨 骨 骨酵素測定法による酵素測定法肝臓 肝臓 肝臓 肝臓 肝臓 肝臓 肝臓 肝臓

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科学分野:

  • クリニカル生化学 臨床生化学
  • 研究室医学は,研究室医学である.
  • 診断用マーカー

背景:

  • アルカリリンフォスファターゼ (ALP) は,肝臓と骨の状態の重要な指標です.
  • 血ALP測定は,通常の生化学検査である.
  • 正確な基準間隔 (RIs) を確立することは,臨床的解釈に不可欠です.

研究 の 目的:

  • 一般的な検査方法を用いて,成人における総ALPの基準間隔を確立する.
  • 異なる分析プラットフォームでALP RIを比較する.
  • 臨床実務において,総ALPのための標準化されたRIを実装する.

主な方法:

  • 北デンマークの献血者と一般診療の患者を対象とした横断的な研究.
  • ALPレベルは,Alinity,Atellica,Cobasのプラットフォームで酵素学的方法を使用して測定されました.
  • 非パラメトリックのRIは,偏微値を除外した2.5パーセントと97.5パーセントを用いて決定される.
  • 解析には,Alinityの補正因子を含む方法と,ない方法が含まれていました.

主要な成果:

  • 確立されたRIは,修正前の方法によってわずかに変化した.
  • アリニティ法に補正因子を適用した後,RIは主に一貫するようになりました.
  • この地域では,40-120 IU/Lの統一RIが実施されました.
  • このRIに該当しないサンプルの割合は,すべての方法において最小でした.

結論:

  • 総ALPの40~120 IU/Lの均一な基準区間は,一般的に使用される検査方法において信頼性があります.
  • Alinity のように,方法固有の補正因子は一貫性を高めます.
  • 標準化されたRIは,肝臓と骨の疾患の診断の正確性と患者のケアを改善します.