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Bulletin of Experimental Biology and Medicine

, Volume 162, Issue 4, pp 507–509 | Cite as

Morphology and Ploidy of Smooth Muscle Cells in Chorionic Arteries under Different Hemodynamic Conditions

  • A. N. Gansburgskii
  • A. V. Yal’tsev
Article

Smooth muscle cells from the arterial wall of placental chorion were studied at 39-40-week gestation. The content of mono- and binuclear tetraploid myocytes was higher in sites of arterial branching and turns (27.3% vs. 4.4% straight parts of the arteries; DNA cytophotometry data). Mitoses were found only in these arterial regions (0.18%). Regional changes in the sizes of diploid and polyploid myocytes were detected, associated with the blood flow pattern in the chorion; myocyte hypertrophy was 17-fold more incident in sites of arterial turns and branching than in straight arteries. Possible causes of changes in the proliferative characteristics and subsequent growth of the chorionic arterial wall myocytes are discussed.

Key Words

chorionic arteries smooth muscle cells hyperplasia polyploidy hypertrophy 

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of Histology, Cytology and Embryology, Department of Pathological Anatomy with a Course of Clinical PathologyYaroslavl State Medical University, Ministry of Health of the Russian FederationYaroslavlRussia

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