A comparison of endothelium-dependent relaxation in omental and myometrial resistance arteries in pregnant and nonpregnant
Article Abstract:
Abdominal arteries may have a greater relaxation response to bradykinin than uterine arteries in both pregnant and nonpregnant women. Researchers obtained omental (abdominal) and uterine muscle arteries from 22 pregnant and 27 nonpregnant women. Arteries were constricted with vasopressin, and then relaxed with bradykinin. Omental arteries relaxed more than did uterine muscle arteries in both pregnant and nonpregnant women. No difference was seen in the blood vessel relaxation response between pregnant and nonpregnant women.
Publication Name: American Journal of Obstetrics and Gynecology
Subject: Health
ISSN: 0002-9378
Year: 1996
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Myoendometrial versus placental uterine arteries: structural, mechanical, and functional differences in late-pregnant rabbits
Article Abstract:
Different blood flow needs in the placenta compared to the uterine lining may explain the differences seen in the physical characteristics of these two vessel types in pregnant rabbits. Pressurized muscle tone measurements and depressurized size measurements were performed on blood vessels from the placenta and uterine lining of 12 New Zealand White rabbits. Uterine wall vessels had stronger muscle tone than placental vessels. Placental vessels, however, had thicker walls and significantly wider diameters.
Publication Name: American Journal of Obstetrics and Gynecology
Subject: Health
ISSN: 0002-9378
Year: 1997
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Apoptosis is a rare event in first-trimester placental tissue
Article Abstract:
Researchers used transmission electron microscopy to confirm that cell death does not occur in placental tissue during the first trimester. They also found that terminal uracil nick end-labeling (TUNEL) staining was not an accurate measure of cell death in placental tissue.
Publication Name: American Journal of Obstetrics and Gynecology
Subject: Health
ISSN: 0002-9378
Year: 2000
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