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Updated: Aug 4, 2025

Megakaryocyte Differentiation and Platelet Formation from Human Cord Blood-derived CD34+ Cells
Published on: December 27, 2017
Platelet function in neonates and children
Suelyn Van Den Helm1, Conor McCafferty1, Natasha Letunica2
1Haematology Research, Murdoch Children's Research Institute, Melbourne, Australia; Department of Paediatrics, The University of Melbourne, Melbourne, Australia.
Insights
Platelet function in children is understudied. New methods allow better analysis of platelet roles in neonatal haemostasis and disease.
Area of Science:
- Hematology
- Pediatric Medicine
- Hemostasis and Thrombosis
Background:
- Platelets are crucial for hemostasis and coagulation, primarily forming stable clots to prevent bleeding.
- Platelet studies in neonates and children are limited by large blood volume requirements for traditional tests like aggregometry.
- Developmental changes in platelet function are less understood compared to plasma coagulation factors.
Conclusions:
- Advances in testing methods are facilitating a better understanding of platelet roles in pediatric hemostasis.
- Further research is needed to fully elucidate platelet function in neonates and children, particularly in disease states.
- This review consolidates current knowledge and highlights future research directions in pediatric platelet research.
Abstract:
Platelets are major regulators of haemostasis and coagulation. The primary role of platelets in coagulation is to form a stable clot and stop bleeding. Studies of platelet phenotype and function in neonates and children have been restricted by the large volumes required for many common platelet function tests such as platelet aggregometry. Developmental changes in platelets have not been as well described as developmental changes in plasma coagulation proteins, and overall, platelet phenotype and function in neonates and children has been understudied when compared to adults. Recent developments in more sensitive platelet function testing methods requiring smaller blood volumes such as flow cytometry has enabled recent studies to further investigate platelet phenotype and function in neonates and children. In this review we will provide an overview of recent advances from the past five years in platelets in the context of developmental haemostasis, as well as the role of platelets in neonatal paediatric disease.
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