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相关概念视频

Volume of Distribution01:20

Volume of Distribution

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The apparent volume of distribution (Vd) is a crucial pharmacokinetic parameter representing the hypothetical body fluid volume into which a drug disperses. It is calculated based on the total amount of drug in the body (estimated from the administered dose and bioavailability) divided by the plasma drug concentration. The total amount of drug in the body does not directly refer to the dose given but is derived by accounting for absorption, distribution, metabolism, and excretion processes.
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相关实验视频

Updated: May 6, 2026

Measuring Deformability and Red Cell Heterogeneity in Blood by Ektacytometry
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对估计死后间隔的新见解:红细胞分布宽度 - 标准偏差.

Hiroki Kondou1, Kaori Shintani-Ishida2, Hiroshi Ikegaya2

  • 1Department of Forensic Medicine, Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465 Kajiicho, Kawaramachi-dori Hirokoji-agaru, Kamigyo-ku, Kyoto, 602-8566, Japan. kondohrk@koto.kpu-m.ac.jp.

Forensic science, medicine, and pathology
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红细胞分布宽度标准偏差 (RDW-SD) 可能有助于估计死后间隔 (PMI). 这项研究发现RDW-SD和PMI之间存在潜在的积极关系,表明其作为法医估计工具的实用性.

关键词:
法医医学法医学的医学.死亡后间隔估计估计红细胞分布宽度 - 标准偏差

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科学领域:

  • 法医科学 法医科学 法医科学
  • 血液学 血液学 血液学
  • 生物标志物 生物标志物

背景情况:

  • 准确的死后间隔 (PMI) 估计在法医调查中至关重要.
  • 目前的PMI估计方法需要组合以提高准确性.
  • 需要用于PMI估计的新生物标志物.

研究的目的:

  • 调查红细胞分布宽度标准偏差 (RDW-SD) 和PMI之间的关联.
  • 评估RDW-SD作为估计PMI的潜在生物标志物.

主要方法:

  • 配对t测试比较RDW-SD从医院和尸检血液样本在18个尸体.
  • 在756具尸体上进行多重回归分析,以评估PMI和RDW-SD之间的关系.

主要成果:

  • 在医院和尸检样本之间确认了RDW-SD的显著差异 (95%CI:11.717.4).
  • 多重回归分析表明PMI和RDW-SD之间存在积极的关系 (回归系数95%CI:1.633.43).

结论:

  • RDW-SD显示了与死后间隔的潜在正相关性.
  • 需要进一步的研究来验证RDW-SD作为PMI估计方法的准确性.