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Ultrastructural alterations of megakaryocytes in thrombocytopenia: A review of 43 cases

open access: yesBlood Science, 2021
. Thrombocytopenia is a frequent occurrence in a variety of hematopoietic diseases; however, the details of the mechanism leading to low platelet count remain elusive.
Brian Eyden   +4 more
doaj   +1 more source

CD34 and CD79a immunopositivity in megakaryocytes

open access: yesHuman Pathology: Case Reports, 2021
CD34 and CD79a are markers of hematopoietic stem cell and B-lymphoid cells, respectively. The abnormal expression of these markers in megakaryocytes has been noticed in cases of myelodysplastic syndrome, inherited platelet disorders, and reactive ...
Pavithra Ayyanar   +3 more
doaj   +1 more source

Insights into Regulatory Factors in Megakaryocyte Development and Function: Basic Mechanisms and Potential Targets

open access: yesFrontiers in Bioscience-Landmark, 2022
Platelets are small, anucleate cellular fragments, which are produced by megakaryocytes, and play a key role in hemostasis and thrombus formation. The differentiation of megakaryocytes from hematopoietic stem cells in bone marrow and the development of ...
Li Li   +10 more
doaj   +1 more source

Shared and Distinctive Ultrastructural Abnormalities Expressed by Megakaryocytes in Bone Marrow and Spleen From Patients With Myelofibrosis

open access: yesFrontiers in Oncology, 2020
Numerous studies have documented ultrastructural abnormalities in malignant megakaryocytes from bone marrow (BM) of myelofibrosis patients but the morphology of these cells in spleen, an important extramedullary site in this disease, was not investigated
Maria Zingariello   +8 more
doaj   +1 more source

The Application of Morphogo in the Detection of Megakaryocytes from Bone Marrow Digital Images with Convolutional Neural Networks

open access: yesTechnology in Cancer Research & Treatment, 2023
The evaluation of megakaryocytes is an important part of the work up on bone marrow smear examination. It has significance in the differential diagnosis, therapeutic efficacy assessment, and predication of prognosis of many hematologic diseases.
Xiaofen Wang MM   +7 more
doaj   +1 more source

Lipid composition and metabolism in megakaryocytes at different stages of maturation.

open access: yesJournal of Lipid Research, 1990
The lipid composition and metabolism of isolated guinea pig megakaryocyte subgroups at various stages of maturation were investigated. Three groups were studied: 1) 67% of megakaryocytes in Group A were immature; 2) Group B was heterogeneous and ...
PK Schick, K Williams-Gartner, XL He
doaj   +1 more source

RhoA is essential for maintaining normal megakaryocyte ploidy and platelet generation. [PDF]

open access: yesPLoS ONE, 2013
RhoA plays a multifaceted role in platelet biology. During platelet development, RhoA has been proposed to regulate endomitosis, proplatelet formation, and platelet release, in addition to having a role in platelet activation.
Aae Suzuki   +11 more
doaj   +1 more source

Qing-Fei-Pai-Du Decoction ameliorated coagulopathy and thrombocytopenia in endotoxaemia rats and enhanced platelet production from megakaryocytes

open access: yesPharmacological Research - Modern Chinese Medicine, 2023
Backgrounds: The Qing-Fei-Pai-Du Decoction (QFPDD) was reported to ameliorate the inflammatory coagulopathy and thrombocytopenia in COVID-19 patients. This work investigated the effects of QFPDD in endotoxaemia rats and then further studied its influence
Jiao Wu   +5 more
doaj   +1 more source

Romiplostim-associated increase in CD34+ megakaryocytes in a case of immune thrombocytopenia: A case report

open access: yesHuman Pathology Reports, 2023
We report a patient with chronic immune thrombocytopenia purpura who underwent bone marrow biopsies before and after treatment with romiplostim. The biopsy after treatment with romiplostim showed a marked increase in the numbers of megakaryocytes which ...
Charles M. Lombard   +2 more
doaj   +1 more source

Uncoupling of the Hippo and Rho pathways allows megakaryocytes to escape the tetraploid checkpoint

open access: yesHaematologica, 2016
Megakaryocytes are naturally polyploid cells that increase their ploidy by endomitosis. However, very little is known regarding the mechanism by which they escape the tetraploid checkpoint to become polyploid.
Anita Roy   +11 more
doaj   +1 more source

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