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Related Concept Videos

Disorders of Hemostasis01:24

Disorders of Hemostasis

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Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
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Introduction to Hemostasis01:05

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Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
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Extrinsic and Intrinsic Pathways of Hemostasis01:20

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Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
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Updated: Feb 10, 2026

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
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Hemostasis biomarkers in multiple sclerosis.

N Ziliotto1,2, F Bernardi1, D Jakimovski2

  • 1Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.

European Journal of Neurology
|May 15, 2018
PubMed
Summary
This summary is machine-generated.

This study found altered levels of hemostasis factors in multiple sclerosis (MS) patients, with lower ADAMTS13 and higher PAI-1 and TFPI. No association was found with disease severity or MRI outcomes.

Keywords:
MRIcerebral microbleedscoagulationcoagulation inhibitorsmultiple sclerosis

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Area of Science:

  • Neuroscience
  • Hematology
  • Immunology

Background:

  • Multiple Sclerosis (MS) is a chronic inflammatory disease of the central nervous system.
  • Hemostasis, the process of stopping bleeding, involves complex interactions of factors and inhibitors.
  • Alterations in hemostasis may play a role in MS pathogenesis and progression.

Purpose of the Study:

  • To investigate plasma levels of hemostasis components in MS patients.
  • To explore associations between these levels and clinical/MRI outcomes in MS.
  • To compare hemostasis profiles between MS subtypes and healthy individuals.

Main Methods:

  • Studied 138 MS patients (RR-MS and P-MS) and 42 healthy individuals (HI).
  • Assessed plasma levels of hemostasis factors (FXII) and inhibitors (TFPI, ADAMTS13, PAI-1, etc.) using Luminex assays and ELISA.
  • Performed 3T MRI and clinical examinations for all participants.

Main Results:

  • MS patients showed lower ADAMTS13 levels compared to HI (P=0.008).
  • MS patients with cerebral microbleeds had lower ADAMTS13 levels (P=0.034).
  • Higher PAI-1 (P=0.02) and TFPI (P=0.002) levels were observed in MS patients compared to HI, with TFPI elevated in progressive MS (P-MS) versus relapsing-remitting MS (RR-MS) (P=0.011).

Conclusions:

  • MS patients exhibit distinct hemostasis profiles, including decreased ADAMTS13 and increased PAI-1 and TFPI.
  • Lower ADAMTS13 in MS patients with cerebral microbleeds warrants further investigation.
  • No significant associations were found between hemostasis plasma levels and measures of disease severity or MRI outcomes.