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Related Concept Videos

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It isn't easy to measure a parameter such as the mean height or the mean weight of a population. So, we draw samples from the population and calculate the mean height or mean weight of the individuals in the sample. This sample data acts as a representative measure of the population parameter. These sample statistics are known as estimates. 
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Related Experiment Video

Updated: Feb 2, 2026

Real-time Imaging of Heterotypic Platelet-neutrophil Interactions on the Activated Endothelium During Vascular Inflammation and Thrombus Formation in Live Mice
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Estimation on Formation Time of Thrombus.

C T Yang1, M Zuo1, S J Wang1

  • 1Hebei Key Laboratory of Forensic Medicine, College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, China.

Fa Yi Xue Za Zhi
|November 23, 2018
PubMed
Summary

This study tracked venous thrombus (blood clot) formation in rats over four weeks. Key biomarkers like hemosiderin and CD61 show predictable changes, offering forensic insights into clot age.

Keywords:
CD34CD61calcium saltforensic pathologyhemosiderinthrombosisα-SMA

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Area of Science:

  • Biomedical Science
  • Forensic Pathology
  • Hematology

Background:

  • Venous thromboembolism is a significant cause of mortality.
  • Accurate estimation of thrombus age is crucial in forensic investigations.
  • Current methods for determining thrombus age have limitations.

Purpose of the Study:

  • To investigate the temporal changes in venous thrombus formation, organization, and recanalization in a rat model.
  • To identify specific biomarkers and their expression patterns over time.
  • To provide a basis for estimating thrombus formation time in forensic cases.

Main Methods:

  • Establishment of a venous thrombosis model in 80 rats using the "narrow" method.
  • Observation of thrombosis, organization, and recanalization using HE, Perls, and Von Kossa staining.
  • Assessment of CD61, α-SMA, and CD34 expression via immunohistochemical staining at various time points (0 h to 4 weeks).

Main Results:

  • Platelet aggregation and trabeculae formation observed within 1 day.
  • Thrombus organization by fibroblasts and initial hemosiderin/α-SMA release by 3 days.
  • Endothelialization, recanalization, calcium deposition, and CD34 expression noted by 1 week; CD61 expression peaks at 1 day and reappears at 4 weeks.

Conclusions:

  • Hemosiderin, calcium salt, CD61, α-SMA, and CD34 exhibit time-dependent changes during thrombus evolution.
  • These biomarkers provide a reference for estimating thrombus age in forensic pathology.
  • The study offers new methodologies for forensic analysis of thrombosis-related deaths.