Browsing by Subject "Obstetrics and Gynecology"
Now showing items 21-40 of 80
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(1971)Clinical evaluation of the contraceptive effectiveness of the endouterine copper "T" has been extended to include "T" devices bearing copper wire having surface areas of 120 mm.2 and of 200 mm.2 copper, respectively. Within ...
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(1977)Early studies with copper suggested that few improvements in overall IUD performance could be obtained with the use of more than 200 mm2 of copper. Thus, the use of other metals paired with copper has been investigated. ...
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(1974)An evaluation of technique for in vivo serial recording of human tubal motility was done in terms of method failures, iatrogenic damage, and reproducibility of results. Thirty women were studied. Ten women dropped out of ...
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Effect of copper intrauterine devices (IUD's) on estrogen and progesterone uptake by the rat uterus (1973)The uptake of labeled estrogen and progesterone by the uterus of spayed rats fitted with inert (nylon) and active (copper) IUD's in the right horn was studied in vivo. Progesterone uptake was determined both in animals ...
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(1974)The recent development of new techniques for the chronic recording of fallopian intratubal pressure in ambulatory patients enabled the study of tubal contractility during normal and occasionally in anovulatory menstrual ...
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(BioScientifica Ltd., 2016)© 2016 Society for Reproduction and Fertility.Progesterone regulates uterine function during the luteal phase and is essential for the acquisition of endometrial receptivity. The objective of the present study was to ...
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(1991)The authors studied the effects of 4-hydroxyandrostene-3,17-dione (4-OHA) on progesterone (P), 17β-estradiol (E2), and 20α-hydroxy-4-pregnen-3-one synthesis and pregnenolone accumulation in cultured human midluteal cells. ...
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(1982)Possible alterations in ovum transport during increased activity of the hypothalamic-pituitary-ovarian axis were investigated in women. D-Trp6-luteinizing hormone (LH)-releasing hormone, a synthetic peptide with potent ...
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(1992)Since april 1957 to april 1986, the Gynecologic Oncologic Unit of San Juan de Dios Hospital, Santiago, registered 255 cases of endometrial carcinoma. 48 cases where clinically etapified because of no previous pelviabdominal ...
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(1984)Hydrosalpinx is usually associated with a low intrauterine pregnancy rate following restoration of tubal patency by microsurgery. The biochemical evaluation of pathologic tubes from 11 infertile patients showed the presence ...
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(BioScientifica Ltd., 2014)In the rat oviduct, estradiol (E2) accelerates egg transport by a nongenomic action that requires previous conversion of E2 to methoxyestrogens via catechol-O-methyltranferase (COMT) and activation of estrogen receptor ...
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(1978)A system utilizing zona-free hamster oocytes, briefly preincubated, uas used to evaluate the ability for fertilization of human spermatozoa from infertile or normal individuals. Phase-contrast and electron microscopically ...
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(1972)Serial fetal heart rate (FHR) determinations were made from early pregnancy to term in 24 healthy fetuses by means of an ultrasonic device. A decreasing FHR pattern was noticed from the eleventh through the thirtieth weeks, ...
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(1976)Four years of experience with the Cu7 200 device have been completed. The 516 initial women studied accumulated a total of 17,554 months of observation. The most relevant events were: the net annual pregnancy rates, in ...
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(1974)A previous report based on investigations in Mexico suggested that quingestanol acetate might have potential as a postcoital oral contraceptive at a 800 mcg dose. This concept was based on some 1,000 cycles of therapy with ...
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(BioScientifica Ltd., 2017)© 2017 Society for Reproduction and Fertility.Chronic cold stress produces adrenergic overload that can affect fetal development. The placental norepinephrine transporter (NET) clears norepinephrine (NE) from both maternal ...
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(2013)To determine the prevalence of South Amerindian Y chromosome in Chilean patients with spermatogenic failure and their association with classical and/or AZFc-partial Y chromosome deletions. We studied 400 men, 218 with ...