Zobrazeno 1 - 10
of 20
pro vyhledávání: '"G J, Valenzuela"'
Publikováno v:
Obstetrics & Gynecology. 76:755-758
In an attempt to develop a reproducible, objective measure of adequate uterine activity in labor, real-time measurements of intrauterine pressure amplitude and contraction frequency, interval, duration, and integral were made in 54 patients, 11 of wh
Publikováno v:
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 258:R1431-R1435
To assess the effects of the presence of the uteroplacental circulation on the systemic arterial pressure, blood volume, and cardiac output during pregnancy, we measured those variables and plasma renin activity (PRA) during a 30-min period before an
Autor:
G. J. Valenzuela, S. Kim
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 258:H1317-H1320
The purpose of the present study was to assess whether acute estrogen administration decreased the lymphatic vessel's "pumping" ability. An additional goal was to assess whether estrogen affected the capillary filtration (used here as the total trans
Publikováno v:
Biology of reproduction. 65(5)
The interplay between the fetus and mother may play a key role in the regulation of primate pregnancy and parturition. This study was designed to test the hypothesis that fetectomy alters maternal pituitary-adrenal function. Between 117 and 122 days
Autor:
G J, Valenzuela, L, Sanchez-Ramos, R, Romero, H M, Silver, W D, Koltun, L, Millar, J, Hobbins, W, Rayburn, G, Shangold, J, Wang, J, Smith, G W, Creasy
Publikováno v:
American journal of obstetrics and gynecology. 182(5)
Patients admitted with an acute episode of preterm labor who respond to early intravenously administered tocolysis remain at risk of having subsequent episodes of preterm labor and preterm delivery. Several pharmacologic agents have been used in an a
Publikováno v:
Obstetrics and gynecology. 88(3)
To evaluate the minimal effective dose regimen of the oxytocin antagonist atosiban in the treatment of acute preterm labor and the effect of a bolus on uterine activity within the first 2 hours compared with no bolus and the same infusion rate.A rand
Publikováno v:
Current opinion in obstetricsgynecology. 5(5)
During the past few years enormous progress has been made in the understanding of the molecular mechanisms involved in parturition; however, the answer to the fundamental question of how labor is initiated remains elusive. This is a very important qu
Autor:
G J, Valenzuela, C W, Hewitt
Publikováno v:
Journal of developmental physiology. 19(5)
The administration of 17-beta estradiol to human, and all the animals species tested, results in blood volume expansion. This effect has been postulated to be mediated through an increase in the circulating levels of aldosterone. We infused 17-beta e
Autor:
G J, Valenzuela, T C, Foster
Publikováno v:
Obstetrics and gynecology. 75(5)
Magnesium sulfate has been shown in vivo and in vitro to decrease the frequency of uterine contractions while maintaining the amplitude; we therefore decided to assess the use of magnesium sulfate infusion in cases of uterine hyperstimulation. The me
Autor:
Robert A. Brace, G. J. Valenzuela
Publikováno v:
The American journal of physiology. 258(1 Pt 2)
Studies have shown that lymph flow rate from several tissues depends on the pressure at the outflow end of the lymphatics. The left thoracic lymph duct is the largest lymphatic vessel and it transports a majority of the body's lymph. We varied outflo