Results 1 to 10 of about 14,451 (146)

Long term use of oral contraceptives comprising synthetic estrogens induces an excessive breast cancer risk in BRCA mutation carrier women: a meta-analysis [PDF]

open access: yesClinical and Experimental Obstetrics & Gynecology, 2022
Background: The relationship between oral contraceptive (OC) use and breast cancer risk is highly debated. Recent publications support a slight increase in overall breast cancer risk among OC user women, in particular among the current users. Women with inherited BRCA1 (Breast cancer type 1) or BRCA2 (Breast cancer type 2) gene mutations are at ...
Hongling Peng, Xiaorong Qi, Qiao Wang
openaire   +2 more sources

Effect of synthetic oestrogens and progestagens in oral contraceptives on bile lipid composition. [PDF]

open access: yesGut, 1983
The prevalence of cholesterol gall stones in young women has increased since the introduction of oral contraceptives. The synthetic female sex hormones used in these preparations, increase the degree of cholesterol saturation in bile. To determine whether oestrogens, progestagens, or both, are responsible for the change in biliary cholesterol ...
James McK. Watts   +3 more
openaire   +3 more sources

Sex Hormone Binding Globulin: Effect of Synthetic Steroids on the Assay and Effect of Oral Contraceptives [PDF]

open access: yesAnnals of Clinical Biochemistry: International Journal of Laboratory Medicine, 1981
The effect that synthetic steroid components of different oral contraceptives have on the assay system for measurement of sex hormone binding globulin (SHBG)-binding capacity, has been examined. Interference with the assay was not demonstrable at therapeutic levels of the drugs.
Richard J Mills, Susan M Bowles
openaire   +2 more sources

Genotoxic damage in cultured human peripheral blood lymphocytes of oral contraceptive users [PDF]

open access: yes, 2012
Synthetic progestins and estrogens have been reported to be toxic in various experimental models. Their prolonged use has been reported to induce cancer in humans.
Afzal, M   +4 more
core   +2 more sources

Effect of the menstrual cycle on performance of intermittent, high-intensity shuttle running in a hot environment [PDF]

open access: yes, 2003
The present study examined the impact of the menstrual cycle and oral contraceptive use on performance of high intensity intermittent running in the heat [31.0 (0.2) oC; 23.1 (0.9) % RH].
Nevill, ME, Sunderland, C
core   +1 more source

Effects of oral contraceptive, synthetic progestogen or natural estrogen pre-treatments on the hormonal profile and the antral follicle cohort before GnRH antagonist protocol [PDF]

open access: yesHuman Reproduction, 2006
Steroid pre-treatments may be useful to program GnRH antagonist IVF/ICSI cycles. This prospective study assessed hormonal and ultrasound data collected during the free period after the discontinuation of three different pre-treatments to provide information on the optimal time interval required before starting stimulation.Women were randomized to ...
V. Bied-Damon   +6 more
openaire   +3 more sources

The development of contraceptive vaccines [PDF]

open access: yes, 2002
The use of vaccination as a means of controlling fertility was established during the last decade with the publication of a successful Phase II trial demonstrating the efficacy of this approach to family planning.
Delves, PJ
core   +1 more source

Ovarian function during hormonal contraception assessed by endocrine and sonographic markers: a systematic review [PDF]

open access: yes, 2016
This systematic review focuses on the literature evidence for residual ovarian function during treatment with hormonal contraceptives. We reviewed all papers which assessed residual ovarian activity during hormonal contraceptive use, using endocrine ...
Bastianelli, Carlo   +5 more
core   +1 more source

Artificial Contraception is Associated With Increased Numbers of Induced Abortions [PDF]

open access: yes, 2001
Since the sexual revolution, it has been a widely accepted fact that contraceptives have been a necessity for our society. They seem to be the best way to prevent unwanted pregnancies that would otherwise result from sexual unions between two people ...
Fernandez, Jose R.   +1 more
core   +2 more sources

Folic Acid Supplementation Improves Vascular Function in Professional Dancers With Endothelial Dysfunction [PDF]

open access: yes, 2011
Objective To determine if folic acid supplementation improves vascular function (brachial artery flow-mediated dilation [FMD]) in professional dancers with known endothelial dysfunction. Design Prospective cross-sectional study.
Gutterman, David D.   +4 more
core   +2 more sources

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