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available about their effects on brain functions. Here, we discuss some data concerning their neural effects in animal models and in women having combined oral contraceptive (COC) or hormone replacement therapy (HRT). Observations in animal models
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United Kingdom include oral levonorgestrel (LNG) and oral UPA. LNG is used in a dose of 1.5 mg orally (single dose) and is licensed for use up to 72 h after UPSI or contraceptive failure. UPA is used in a dose of 30 mg and is licensed for up to 120 h for
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compared with women who did not receive any contraceptive. In addition, this study observed no statistical difference in oral or injectable contraceptive use ( Heffron et al . 2012 , 2013 ). However, another study reported that injectable depot
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Hematology, Departments of Medicine, Pharmacology, Division of Physiology and Growth, Oncology, and Transplantation Division
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. Similarly, hormonal oral contraceptive use has been consistently associated with a reduced risk. In an analysis of 20 epidemiological studies between 1970 and 1991, it was estimated that a 35% reduction in the risk was associated with ever-use of oral
Department of Gynaecological Oncology, Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital
Department of Gynaecological Oncology, Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital
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Department of Gynaecological Oncology, Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital
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Department of Gynaecological Oncology, Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital
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Department of Gynaecological Oncology, Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital
Department of Gynaecological Oncology, Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital
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). By contrast, progesterone, a component of the oral contraceptive pill, produced at high levels during pregnancy, is thought to be protective against EOC ( Risch 1998 , Ho 2003 ), potentially by stimulating apoptosis ( Rodriguez et al . 1998 ). The
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://doi.org/10.1016/0002-9378(90)90551-H ) 2308344 10.1016/0022-4731(90)90290-9 Kuhnz W Al-Yacoub G Fuhrmeister A 1992 Pharmacokinetics of levonorgestrel and ethinylestradiol in 9 women who received a low-dose oral contraceptive over a treatment
Center for Reproductive Health Sciences, Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, Missouri, USA
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Center for Reproductive Health Sciences, Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, Missouri, USA
Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
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-Beltran et al. examined the gut microbiota composition of non-obese females with PCOS (age 15.8 years; BMI 25 kg/m 2 ) who were randomized to receive treatment with either an oral contraceptive ( n = 15) or with spironolactone–pioglitazone–metformin ( n
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Center for Cancer and Cell Biology, Program in Skeletal Disease and Tumor Microenvironment, Van Andel Research Institute, Grand Rapids, Michigan, USA
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Department of Emergency Medicine, Center for Difficult Diagnoses and Rare Diseases, Second Xiangya Hospital of the Central-South University, Changsha, Hunan, China
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containing oral contraceptives found slight reductions in bone mineral density in the treated group compared to controls at both central and peripheral skeletal locations ( Cundy et al . 1991 , 1996 , 1998 , Cundy & Reid 1997 , Bachrach et al . 2000
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, potentially contributing to this immunosuppressive microenvironment ( Fischer et al. 2016 ), and likewise the use of oral contraceptives has been suggested to influence immune cell populations ( Vincent & Salamonsen 2000 , Isfoss et al. 2018 ). The
Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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between female sex hormones and RA. Pregnancy loss, parity, hormone replacement therapy (HRT), or oral contraceptives (OCs) have been reported as both protective and risk factors for RA ( Warren & Halpert 2004 ). These controversies raise an interest to