Studies of High-molecular Placental Components in Connection with Pregnancy Toxemia. Third Paper On Placental Desoxypentosenucleic Acid (DNA)

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Studies of high-molecular placental components in connection with pregnancy toxemia; third paper on placental desoxypentosenucleic acid (DNA).

For the etiological study of pregnancy toxemia along our line, Kanno et al.1) and Kanno2) extracted the components from placentas, once de hydrated with alcohol, by boiling with water. However, their preliminary treatment of placentas and manner of extraction both do not appear ap propriate to obtain the substances for the aim of biological examination, because the natural highly-associated sta...

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Placental chorioangiomatosis--a high risk pregnancy.

A case of diffuse chorioangiomatosis leading to fetal hydrops, disseminated intravascular coagulopathy with massive umbilical vein thrombosis and fetal death is described. Although rare, this benign mesenchymatous malformation of the placenta should be kept in mind as a possible cause of neonatal morbidity. Prenatal diagnosis could prevent fetal death.

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Placental Protein 13 (PP13) – A Placental Immunoregulatory Galectin Protecting Pregnancy

Galectins are glycan-binding proteins that regulate innate and adaptive immune responses, and some confer maternal-fetal immune tolerance in eutherian mammals. A chromosome 19 cluster of galectins has emerged in anthropoid primates, species with deep placentation and long gestation. Three of the five human cluster galectins are solely expressed in the placenta, where they may confer additional ...

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Placental amino acid transport.

Normal fetal growth and development depend on a continuous supply of amino acids from the mother to the fetus. The placenta is responsible for the transfer of amino acids between the two circulations. The human placenta is hemomonochorial, meaning that the maternal and fetal circulations are separated by a single layer of polarized epithelium called the syncytiotrophoblast, which is in direct c...

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Dna Content of Placental Nuclei

The DNA content of individual nuclei in four immature human placentas was determined by microspectrophotometric analysis of Feulgen-stained sections. The absence of mitosis in the syncytiotrophoblast, taken together with the finding of a diploid unimodal distribution, at a time of rapid placental growth, indicated that the syncytiotrophoblast possessed little or no intrinsic reproductive capaci...

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ژورنال

عنوان ژورنال: The Tohoku Journal of Experimental Medicine

سال: 1955

ISSN: 0040-8727,1349-3329

DOI: 10.1620/tjem.61.261