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Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
The effect of vanadium on platelet function
Adriana González-Villalva1, Gabriela Piñón-Zárate, Aurora De la Peña Díaz
1Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, CP 04510, Mexico City, Mexico. hemadgovi@yahoo.com.mx
Abstract:
Vanadium pentoxide (V(2)O(5)) inhalation effect on platelet function in mice was explored, as well as the in vitro effect on human platelets. Mouse blood samples were collected and processed for aggregometry and flow cytometry to assess the presence of P-selectin and monocyte-platelet conjugates. Simultaneously, human platelets were processed for aggregometry(.) The mouse results showed platelet aggregation inhibition in platelet-rich-plasma (PRP) at four-week exposure time, and normality returned at eight weeks of exposure, remaining unchanged after the exposure was discontinued after four weeks. This platelet aggregation inhibition effect was reinforced with the in vitro assay. In addition, P-selectin preserved their values during the exposure, until the exposure was discontinued during four weeks, when this activation marker increased. We conclude that vanadium affects platelet function, but further studies are required to evaluate its effect on other components of the hemostatic system.
Insights
Vanadium pentoxide inhalation temporarily inhibits platelet aggregation in mice and human platelets. Platelet function returned to normal after exposure cessation, indicating a reversible effect.
Area of Science:
- Toxicology
- Hematology
- Environmental Health
Background:
- Vanadium pentoxide (V(2)O(5)) is an environmental pollutant with potential health impacts.
- Platelet function is crucial for hemostasis and thrombosis.
- Understanding the effects of inhaled toxicants on platelet activity is important for public health.
Purpose of the Study:
- To investigate the effects of vanadium pentoxide inhalation on platelet function in mice.
- To examine the in vitro effects of vanadium pentoxide on human platelet aggregation.
- To assess changes in platelet activation markers like P-selectin and monocyte-platelet conjugates.
Main Methods:
- Mice were exposed to vanadium pentoxide, and blood samples were analyzed.
- Platelet-rich plasma (PRP) from mice and humans was subjected to aggregometry.
- Flow cytometry was used to detect P-selectin and monocyte-platelet conjugates.
Main Results:
- Inhalation of V(2)O(5) led to transient inhibition of platelet aggregation in mice after four weeks, with normalization by eight weeks.
- In vitro assays confirmed the inhibitory effect of V(2)O(5) on platelet aggregation.
- P-selectin levels remained stable during exposure but increased after cessation, suggesting a delayed response.
Conclusions:
- Vanadium pentoxide exposure impacts platelet function, causing reversible aggregation inhibition.
- The hemostatic system's response to vanadium requires further investigation.
- These findings highlight the potential hematological risks associated with vanadium exposure.
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