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Updated: Sep 3, 2026

A Novel Clinical Grade Isolation Method for Human Kidney Perivascular Stromal Cells
Published on: August 7, 2017
Megakaryocytes in renal glomeruli
Abstract:
Reported are 27 autopsies with significant increases in the numbers of megakaryocytes within the renal glomerular capillary network (P less than 0.001). These were selected from 118 cases in which peripheral vascular megakaryocytosis could be expected preterminally. Generally, the histologically observed increases in numbers of renal megakaryocytes corresponded to increases in the pulmonary microcirculation and in the bone marrow. An exception to the latter was noted in patients who had morphologic evidence of coagulopathy without sepsis.
Insights
Autopsy findings reveal significantly increased megakaryocytes in renal glomeruli, suggesting a systemic event. These changes often correlated with megakaryocyte increases in pulmonary circulation and bone marrow.
Area of Science:
- Nephrology
- Hematology
- Pathology
Background:
- Megakaryocytes are crucial for platelet production.
- Peripheral vascular megakaryocytosis can occur terminally.
- Renal involvement in megakaryocyte distribution is not fully understood.
Purpose of the Study:
- To investigate the presence and significance of megakaryocytes in the renal glomerular capillary network.
- To correlate renal megakaryocyte findings with other vascular beds and bone marrow.
- To identify potential factors influencing renal megakaryocyte distribution.
Main Methods:
- Retrospective autopsy study of 118 cases.
- Histological examination of renal, pulmonary, and bone marrow tissues.
- Statistical analysis to determine significance (P < 0.001).
Main Results:
- Significant increase in renal glomerular megakaryocytes observed in 27 cases (P < 0.001).
- Renal megakaryocyte increases generally corresponded with pulmonary microcirculation and bone marrow findings.
- An exception was noted in patients with coagulopathy but without sepsis.
Conclusions:
- Increased renal glomerular megakaryocytes indicate a potential systemic megakaryocyte trafficking or release.
- The findings suggest a link between terminal conditions, megakaryocyte distribution, and renal pathology.
- Coagulopathy may influence the pattern of megakaryocyte distribution in the absence of sepsis.
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