Results 191 to 200 of about 93,905 (236)
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Chemical Reactions of the Copper Intrauterine Device
Fertility and Sterility, 1972This study investigated the reactions of metallic copper with various biologic substrates to account for the loss of metallic copper in the IUD. Purified copper foil of .005 cm thickness was cut into strips and placed in solutions of the substrates then incubated at 37 degrees C.
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The Copper Intrauterine Device and Its Mode of Action
New England Journal of Medicine, 1975Copper bearing intrauterine devices have become the most reputable effective and safe IUDs available. The reaction between the copper and the body prevents fertilization. An infiltration of polymorphonuclear leukocytes occur in the uterine lumen as a result of the IUD. The daily released copper is equivalent to 1% of the copper taken orally by day.
Gerald Oster, Miklos Salgo
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Copper intrauterine contraceptive device and pregnancy rate
Advances in Contraception, 1994Between August 1983 and August 1992, 1995 women aged 20-43 years were fitted with 2736 copper intrauterine contraceptive devices (MLCu250, MLCu375, Nova-T, Gravigard, Anticon). Insertion of the IUD was performed during menstruation by a skilled team of gynecologists. The women were instructed to self-check the IUD tail after each menstrual period.
John N. Bontis +3 more
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URTICARIA SECONDARY TO A COPPER INTRAUTERINE DEVICE
International Journal of Dermatology, 1976ABSTRACT: A 24‐year‐old woman developed an acute urticarial reaction secondary to a copper intrauterine contraceptive device. Allergy to copper was proven by scratch tests. The condition cleared with removal of the IUD.
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Menstrual blood loss with copper intrauterine devices
Contraception, 1974Abstract Menstrual blood loss was estimated quantitatively by Halberg & Nilson method for 336 women: 145 normal controls (240 cycles); 91 fitted with Cu-devices (349 collected cycles); 50 fitted with Lippes loops (224 cycles) and 50 on combined steroid contraceptive therapy (236 cycles).
F. Hefnawi, H. Askalani, K. Zaki
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The Mechanism of Action of the Copper Intrauterine Device
Fertility and Sterility, 1976The effects of copper ions on the binding of steroids to receptors revealed that the inhibitory effect of Cu++ was apparent at 10(-6)M, ANd the binding capacities decreased to 10% at 10(-2)M Cu++. The kinetic study demonstrated that Cu++ was a competitive inhibitor of steroid hormone-receptor binding (Ki divided by 2.7 X 10(-5)M to estrogen receptor ...
N. Furuta +5 more
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Metallic copper as an intrauterine contraceptive adjunct to the “T” device
American Journal of Obstetrics and Gynecology, 1969Abstract The addition of metallic copper to a simple IUCD has been shown in humans to increase significantly the contraceptive effectiveness. A series of correlations between physical characteristics of an IUCD and its clinical reactivity have been proposed and partially tested.
Jaime A. Zipper +9 more
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Secondary cervical perforation by the Copper-T intrauterine device
European Journal of Obstetrics & Gynecology and Reproductive Biology, 1979Five cases of cervical perforation have been observed in women with a Copper-T IUCD, over a period of 5 yr. In all cases, the distal end of the stem (vertical limb) of the T had perforated through the cervical wall into one of the fornices of the vagina. Only 2 cases had symptoms leading to the discovery of the device, while the other 3 were discovered
J. Reichman +2 more
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INTRAUTERINE CONTRACEPTION USING THE COPPER-SEVEN DEVICE
The Lancet, 1972Abstract A preliminary study of 342 women over 1196·5 women-months of use of the copper-seven device is described; 32·2% were nulliparous, the rest were multiparous. Insertion was easy in 85%, there were minor problems in 9%, and difficulties in the remaining 6%.
John McEwan, John Newton, Julian Elias
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Reactive molecules and microorganisms and copper intrauterine devices
International Journal of Gynecology & Obstetrics, 2005Copper in the intrauterine device (IUD) has been shown to have bactericidal activity in addition to enhancing contraceptive activity. However the exact mechanism of antimicrobial action of copper IUD is not known. The increase in the number of polymorphonuclear leukocytes in the endometrium following IUD insertion has been documented.
Indu Gupta, M. Navada, Veena Dhawan
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