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This study found that norethindrone and levonorgestrel affected Arabidopsis thaliana root growth differently depending on concentration, with levonorgestrel being highly active and most effective at promoting taproot growth at low doses.

This study found that combining a GnRH agonist with a low-dose oral contraceptive was more effective in treating hirsutism than either agent alone and prevented hypoestrogenic side effects.

This study in female beagle dogs found that long-term exposure to oral contraceptive steroids resulted in significant reproductive and mammary gland changes, with the relevance to human tumor risk remaining uncertain.

This study found that feeding norethindrone acetate to albino rats over two years caused various dose-related health effects, such as growth retardation and liver changes, but did not increase overall tumor incidence.

Treating ovarian-related inflammation may help hair regrowth in women with alopecia areata.

In this study, Neogynon was found to be 100% effective as a contraceptive, with no observed failures in 3129 cycles among 184 women, while side effects included changes in endometrial patterns and some central nervous system effects.

In this study, researchers reported that both progestin-only injectable contraceptives, DMPA-IM and NET-EN, significantly decreased serum testosterone and SHBG levels among HIV-negative women in South Africa, yet this did not explain prior findings of no reduction in risky sexual behavior or sexual function.

In this study, oral dienogest combined with ethinylestradiol provided effective contraception with a Pearl Index of approximately 0.2 and improved androgenic symptoms without significant metabolic effects.

This study found that the progestins norgestimate and dienogest may help treat clinical hyperandrogeny in women by inhibiting skin 5 alpha-reductase activity with minimal androgenic potential.

This study suggests that combination drug therapy with spironolactone and either oral contraceptives or dexamethasone effectively manages unresponsive hirsutism, with eight of nine patients achieving satisfactory clinical responses.

This case report discusses a 17-year-old student's contraceptive use and pregnancy history without providing new research findings.

This study observed that women using combined oral contraceptives experienced more nausea, vomiting, and hair loss, while those on Depo-Provera were more likely to gain weight.

The estradiol valerate/dienogest oral contraceptive helps with heavy periods, may improve acne and symptoms in PCOS, and doesn't affect sexual function.

This review discusses the use of ethinylestradiol combined with antiandrogenic progestin for treating androgenisation symptoms and improving metabolic and menstrual health in women, but it does not provide new clinical data.

This review discusses the 2011 publications on the side effects of sex hormones and related compounds, without reporting new clinical results.

This study found that hormonal antiandrogen acne treatment is associated with shorter antibiotic durations in women, suggesting early initiation may reduce overall antibiotic use.

The vellus index is a simple, quick, and reliable method to assess and monitor hair growth, especially in hirsutism.

This source highlights the role of progestin in contraception, noting that while different types have varying progesteronic potential and effects, they share similar contraceptive mechanisms, allowing tailored use based on patient conditions.

Hormonal contraceptives are effective for teens but require careful consideration of side effects and individual health.

This review examines treatment options for PCOS, highlighting the importance of managing symptoms and patient counseling, and reports no new clinical results.

This study observed a strong overall reduction in the use of CPA/EE in the Netherlands, despite similar proportions of users with acne or other hyperandrogenic conditions before and after the referral procedure.

This study found that A-ring reduced derivatives of norethisterone and levonorgestrel exhibit estrogen-like potency in rat osteoblasts, suggesting a mechanism for 19-norprogestins' bone restoration effects in postmenopausal women.

Ethinylestradiol/Chlormadinone Acetate is a safe and effective birth control pill that also helps regulate menstrual cycles, reduces period pain, and treats certain skin and hair conditions.

This paper is a quiz on contraceptive knowledge and reports no new research findings.

This study found that the combination of ethinylestradiol and desogestrel significantly decreased hair growth and hormone levels in hirsute women, suggesting a relationship between hormone changes and treatment effectiveness.

This review discusses developments in oral contraceptives, highlighting improved individualization, reduced side effects, and enhanced suitability for various women's health needs, but it reports no new clinical results.

This study found that chronic treatment with EE/LNG in female rats decreased brain concentrations of allopregnanolone, leading to reduced social and sexual behaviors; progesterone administration reversed these effects, except when finasteride was used to block the increase.

This study found that a combined oral contraceptive containing ethinyl estradiol and desogestrel appeared effective in temporarily treating ovarian hyperandrogenism in adolescents, with reductions in hormone levels and ovarian volume observed.

This study reports that two oral hormonal agents, dimethandrolone undecanoate and 11β-methylnortestosterone dodecylcarbonate, may effectively suppress hormones to contraceptive levels in men with mild side effects, though longer-term trials are required to confirm their safety and efficacy.

This publication discusses the political rationale behind the French regulator ANSM's decision to withdraw Diane®-35 from the market, in response to health concerns associated with third-generation oral contraceptives.