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Related Concept Videos

Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors01:20

Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors

Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
Structure and Function of Platelets01:18

Structure and Function of Platelets

The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000 platelets, with...
Formation of the Platelet Plug01:22

Formation of the Platelet Plug

The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
ATP Synthase: Mechanism01:48

ATP Synthase: Mechanism

In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased ATP...
The Inner Mitochondrial Membrane01:28

The Inner Mitochondrial Membrane

The inner mitochondrial membrane is the primary site of ATP synthesis. The inner membrane domain that forms a smooth layer adjacent to the outer membrane is called the inner boundary membrane. This domain contains membrane transporters that drive metabolites in and out of the mitochondria.  In contrast, the inner membrane network that invaginates into the matrix space is called the cristae membrane. This domain accounts for principle mitochondrial function as it accommodates the protein...

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Related Experiment Video

Updated: May 29, 2026

LC-MS Analysis of Human Platelets as a Platform for Studying Mitochondrial Metabolism
06:04

LC-MS Analysis of Human Platelets as a Platform for Studying Mitochondrial Metabolism

Published on: April 4, 2016

Platelet Mitochondria: A Promising Target for Antiplatelet Therapy.

Yan-Zhu Yao1, Tong Yin1, Yong-Ming Yao2

  • 1Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, National Clinical Research Center for Geriatric Diseases, Second Medical Center of the Chinese PLA General Hospital, Beijing, China.

Antioxidants & Redox Signaling
|May 27, 2026
PubMed
Summary

Platelet mitochondria are crucial for blood clot formation and activation. Targeting platelet metabolism offers a promising new strategy to prevent thrombosis while minimizing bleeding risks associated with current therapies.

Keywords:
antiplatelet targetsplatelet activationplatelet mitochondria

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Last Updated: May 29, 2026

LC-MS Analysis of Human Platelets as a Platform for Studying Mitochondrial Metabolism
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Published on: April 4, 2016

Ferric Chloride-induced Murine Thrombosis Models
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Ferric Chloride-induced Murine Thrombosis Models

Published on: September 5, 2016

Preparation of Washed Human Platelets for Quantitative Metabolic Flux Studies
07:06

Preparation of Washed Human Platelets for Quantitative Metabolic Flux Studies

Published on: January 10, 2025

Area of Science:

  • Mitochondrial biology
  • Hematology
  • Thrombosis research

Background:

  • Platelet mitochondria play a key role in platelet activation and thrombosis.
  • Mechanisms include metabolic reprogramming, calcium signaling, and quality control.
  • Mitochondrial genome (mtDNA) regulation is linked to various diseases.

Purpose of the Study:

  • To summarize key platelet mitochondrial mechanisms driving platelet activation.
  • To highlight the role of metabolic reprogramming, calcium flux, quality control, and mtDNA.
  • To discuss challenges and future directions in targeting platelet mitochondria.

Main Methods:

  • Literature review and summary of current research on platelet mitochondrial function.
  • Analysis of metabolic pathways, including oxidative phosphorylation (OXPHOS) and glycolysis.
  • Discussion of mitochondrial dynamics, mitophagy, and mtDNA regulation.

Main Results:

  • Platelet mitochondria fuel energy demands via metabolic reprogramming, regulate calcium signaling, and maintain integrity through quality control.
  • The role of OXPHOS in thrombosis is complex and not fully understood.
  • Metabolic flexibility and cytotoxic effects of modulators pose therapeutic challenges.

Conclusions:

  • Targeting platelet mitochondria with antioxidants and metabolic modulators is a promising antiplatelet strategy.
  • Further research into platelet-derived mitochondria transplantation and mtDNA detection is warranted.
  • Developing metabolism-targeting therapies could overcome limitations of current antiplatelet agents.