Compensatory Changes in Selenoenzymes in Full Term Human Placentae Induced by Environmental Conditions

2002 ◽  
pp. 373-374
Author(s):  
P. Zagrodzki ◽  
L. Zamorsk ◽  
M. Zadrozna
1959 ◽  
Vol XXXII (II) ◽  
pp. 195-208 ◽  
Author(s):  
E. Diczfalusy ◽  
Anne-Marie v. Münstermann

ABSTRACT From the ethanol extract of 100 full term placentae approximately 200 μg of an α-ketolic Kober chromogen have been isolated in a »free« form. The evidence obtained indicates that this α-ketolic Kober chromogen is identical with 16-oxooestradiol-17β.


Author(s):  
K. Ohi ◽  
M. Mizuno ◽  
T. Kasai ◽  
Y. Ohkura ◽  
K. Mizuno ◽  
...  

In recent years, with electron microscopes coming into wider use, their installation environments do not necessarily give their performance full play. Their environmental conditions include air-conditioners, magnetic fields, and vibrations. We report a jointly developed entirely new vibration isolator which is effective against the vibrations transmitted from the floor.Conventionally, large-sized vibration isolators which need the digging of a pit have been used. These vibration isolators, however, are large present problems of installation and maintenance because of their large-size.Thus, we intended to make a vibration isolator which1) eliminates the need for changing the installation room2) eliminates the need of maintenance and3) are compact in size and easily installable.


2012 ◽  
Author(s):  
R. Montirosso ◽  
S. Moriconi ◽  
B. Riccardi ◽  
G. Reni ◽  
F. Arrigoni ◽  
...  

1978 ◽  
Vol 39 (03) ◽  
pp. 751-758 ◽  
Author(s):  
B L Sheppard ◽  
J Bonnar

SummaryThe fibrinolytic activity of the intimal cells of decidual spiral arteries and the syncytium of placental villi was studied by electron microscopy in ten normal full-term human pregnancies using a modification of the fibrin slide technique. Endothelial cells lining the intima of the decidual spiral arteries showed a considerably greater fibrinolytic activity than intimal cytotrophoblast and the syncytiotrophoblast showed no activity.The replacement of endothelial cells by an intimal lining of cytotrophoblast, and the presence of cytotrophoblast in the media, appears to play an important role in the reduction of the fibrinolytic activity of the vessel. This inhibition of fibrinolytic activity in the utero-placental arteries may be the physiological mechanism which controls fibrin deposition in these vessels and on the placental villi.


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