Histochemical Study of the Placenta in Prolonged Pregnancy, Toxemia of Pregnancy and Small-For-Dates Infants
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概要
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The functions of placenta in prolonged pregnancy, toxemia of pregnancy, small-for-dates infant (SFD) and in normal delivery at term were investigated. Histochemical studies on the ramus chorii which is considered to be most functional parts of the placenta, such as fetal nutritional supply, oxygenation, hormonal secretion and enzyme. The following results were obtained: 1. Chorional epithelium of the ramus chorii (1) Feulgen reaction (a) Most of the Karyoplasm in syncytial cells of the chorional epithelium surrounding the ramus chorii had a granular appearance. (b) In the S. K., the G/A ratio increased in normal delivery and prolonged delivery cases, but it decreased in the toxemia of pregnancy cases. (2) Methyl-green-pyronin stain The karyoplasm of the S. K. cells was extremely weak in staining comparing with other cases. This tendency was particulary observed in the S. K. 2. The ground substance of the ramus chorii Acid mucopolysaccharides which were contained in the placenta are particularly considered to be hyaluronic acid. In the cases with toxemia of pregnancy, parturient eclampsia and prenatal death of fetus showed a tendency of strong staining in the colloidal iron reaction. In conclusion, the amounts of DNA (Feulgen reaction), RNA (methyl-green-pyronin stain) and acid mucopolysaccharides (colloidal iron reaction) in SFD were quite different from those in other cases. This suggests that SFD shows some abnormalities in placental functions.
- 東海大学の論文
著者
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KOBAYASHI Kazuo
Department of Materials Science and Engineering, Faculty of Engineering, Nagasaki University
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Shiozuka Yukihiko
Department Of Obstetrics And Gynecology School Of Medicine Tokai University
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FUJII Nariakira
Department of Obstetrics and Gynecology, School of Medicine, Tokai University
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HAYASHI Moichiro
Department of Obstetrics and Gynecology, School of Medicine, Tokai University
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MATSUMOTO Tsuneyoshi
Kosei Hospital
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Kobayashi Kazuo
Department Of Obsterics-gynaecology School Of Medicine Tokai University
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Hayashi Moichiro
Department Of Obsterics-gynaecology School Of Medicine Tokai University
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Fujii Nariakira
Department Of Obsterics-gynaecology School Of Medicine Tokai University
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Kobayashi Kazuo
Department Of Civil Engineering At The Osaka Institute Of Technology
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Kobayashi Kazuo
Department Of Agricultural Chemistry Faculty Of Agriculture Tohoku University
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