Sökning: "levonorgestrel"

Visar resultat 1 - 5 av 19 avhandlingar innehållade ordet levonorgestrel.

  1. 1. Ovarian Steroid Hormones, Emotion Processing and Mood

    Författare :Malin Gingnell; Inger Sundström-Poromaa; Mats Fredrikson; Johan Wikström; Larry Cahill; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; premenstrual dysphoric disorder; menstrual cycle; combined oral contraceptives; estrogen; estradiol; progesterone; ethinyl-estradiol; levonorgestrel; randomized clinical trial; placebo; fMRI; amygdala; ACC; insula; dlPFC; mPFC; IFG; MFG; Medicinsk vetenskap; Medical Science; Obstetrik och gynekologi; Obstetrics and Gynaecology;

    Sammanfattning : It is known that some psychiatric disorders may deteriorate in relation to the menstrual cycle. However, in some conditions, such as premenstrual dysphoric disorder (PMDD), symptomatology is triggered mainly by the variations in ovarian steroid hormones. LÄS MER

  3. 2. Levonorgestrel emergency contraception : effects on endometrial development and embryo implantation

    Författare :Chun-Xia Meng; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Emergency contraception; levonorgestrel; endometrial receptivity markers; embryo implantation; first-trimester tissues;

    Sammanfattning : Background: The dialog between the developing embryo and receptive endometrium is under the control of ovarian steroids and numerous biomolecules, some of which have been suggested as markers of endometrial receptivity. Unintended pregnancies are common. The standard treatment with levonorgestrel (LNG, 1. LÄS MER

  4. 3. Androgenic Effects of the Progestin Levonorgestrel in Three-spined Stickleback (Gasterosteus aculatus)

    Författare :Johan Svensson; Björn Brunström; Ingvar Brandt; Emma Wincent; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biologi med inriktning mot ekotoxikologi; Biology with specialization in Environmental Toxicology;

    Sammanfattning : The extensive use of pharmaceuticals and their poor removal by wastewater treatment plants has led to the emergence of pharmaceutical compounds as global aquatic contaminants. Progestins, the synthetic analogues to progesterone, are receiving increasing attention as contaminants and have been shown to impair reproduction in fish and amphibians at low ng L-1 concentrations. LÄS MER

  5. 4. Human Endometrial Angiogenesis : An Immunohistochemical Study of the Endometrial Expression of Angiogenic Growth Factors and Their Corresponding Receptors

    Författare :Björn Möller; Matts Olovsson; Bo Lindblom; Kristina Gemzell-Danielsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Human endometrium; angiogenesis; menstrual cycle; endothelial cells; immunohistochemistry; western blot; VEGF; VEGFR; FGF-2; FGFR; EGF; EGFR; levonorgestrel-releasing intrauterine system; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin;

    Sammanfattning : The human endometrium undergoes dramatic changes in morphology and function during the menstrual cycle. Recurrent angiogenesis (the formation of new blood vessels) is of utmost importance for oxygen supply and nourishment of the rapidly growing endometrial tissue. LÄS MER

  7. 5. Endometrial receptivity and development of new contraceptive methods

    Författare :Lena Marions; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Mifepristone; levonorgestrel; endometrial receptivity; emergency contraception; blastocyst implantation; integrins; cyclooxygenase;

    Sammanfattning : Ovulation and endometrial development as well as contraceptive efficacy was studied after treatment with the antiprogestin mifepristone. Mechanism of action after treatment with the gestagen levonorgestrel or mifepristone in doses effective for emergency contraception was also evaluated. LÄS MER