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Levonorgestrel

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https://www.readbyqxmd.com/read/28431277/endocrine-disruption-by-environmental-gestagens-in-amphibians-a-short-review-supported-by-new-in%C3%A2-vitro-data-using-gonads-of-xenopus-laevis
#1
REVIEW
Andrea Ziková, Claudia Lorenz, Frauke Hoffmann, Wibke Kleiner, Ilka Lutz, Matthias Stöck, Werner Kloas
Endocrine disruption caused by various anthropogenic compounds is of persisting concern, especially for aquatic wildlife, because surface waters are the main sink of these so-called endocrine disruptors (ED). In the past, research focused on (anti)estrogenic, (anti)androgenic, and (anti)thyroidal substances, affecting primarily reproduction and development in vertebrates; however, other endocrine systems might be also targeted by ED. Environmental gestagens, including natural progestogens (e.g. progesterone (P4)) and synthetic progestins used for contraception, are supposed to affect vertebrate reproduction via progesterone receptors...
April 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/28427775/nonoperative-management-of-atypical-endometrial-hyperplasia-and-grade-1-endometrial-cancer-with-the-levonorgestrel-intrauterine-device-in-medically-ill-post-menopausal-women
#2
William D Baker, Stuart R Pierce, Anne M Mills, Paola A Gehrig, Linda R Duska
OBJECTIVE: To assess the endometrial response rates to treatment with the levonorgestrel intrauterine device in post-menopausal women with atypical hyperplasia/endometrial intraepithelial neoplasia and grade 1 endometrioid (AH/EC) endometrial carcinoma who are not surgical candidates. METHODS: Chart review was undertaken of patients with AH/EC who underwent levonorgestrel intrauterine device insertion by a gynecologic oncologist within two academic health systems between 2002 and 2013...
April 18, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28417439/clinical-pharmacokinetics-of-sacubitril-valsartan-lcz696-a-novel-angiotensin-receptor-neprilysin-inhibitor
#3
REVIEW
Surya Ayalasomayajula, Thomas Langenickel, Parasar Pal, Sreedevi Boggarapu, Gangadhar Sunkara
Sacubitril/valsartan (LCZ696) is indicated for the treatment of heart failure with reduced ejection fraction. Absorption of sacubitril/valsartan and conversion of sacubitril (prodrug) to sacubitrilat (neprilysin inhibitor) was rapid with maximum plasma concentrations of sacubitril, sacubitrilat, and valsartan (angiotensin receptor blocker) reaching within 0.5, 1.5-2.0, and 2.0-3.0 h, respectively. With a two-fold increase in dose, an increase in the area under the plasma concentration-time curve was proportional for sacubitril, ~1...
April 17, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28382493/drospirenone-containing-oral-contraceptive-pills-and-the-risk-of-venous-thromboembolism-an-assessment-of-risk-in-first-time-users-and-restarters
#4
Natasha Larivée, Samy Suissa, Janie Coulombe, Vicky Tagalakis, Kristian B Filion
INTRODUCTION: The effects of drospirenone-containing combined oral contraceptives (COCs) on the risk of venous thromboembolism (VTE) remain controversial due to the challenge in distinguishing between first-time users and restarters, and their different underlying VTE risks, in healthcare databases. OBJECTIVES: The aim of this study was to describe the challenge of studying the risk of VTE among first-time users of drospirenone-containing COCs in a healthcare database and assess the risk among first-time users and restarters...
April 5, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28376377/combined-oral-contraceptive-and-nitric-oxide-synthesis-inhibition-synergistically-causes-cardiac-hypertrophy-and-exacerbates-insulin-resistance-in-female-rats
#5
Lawrence A Olatunji, Kehinde S Olaniyi, Taofeek O Usman, Bilikis A Abolarinwa, Caleb J Achile, In-Kyeom Kim
Combined oral contraceptive (COC) use or inhibition of nitric oxide (NO) synthesis has been shown to cause hypertension and insulin resistance. However, the concomitant effects of COC and NO deficiency on the heart and glucose regulation are not well known. We therefore hypothesized that COC treatment during NO deficiency would lead to the development of cardiac hypertrophy that is associated with aggravated glucose deregulation, pro-inflammatory and pro-fibrotic biomarkers. Eight-week-old female Wistar rats were randomly allotted into control, NO deficient (N(G)-nitro-l-arginine methyl ester: L-NAME; 20...
March 20, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28373471/continuation-of-a-levonorgestrel-intrauterine-device-during-hematopoietic-stem-cell-transplant-a-case-report
#6
Paula C Brady, Robert J Soiffer, Elizabeth S Ginsburg
BACKGROUND: During treatment of hematologic malignancies in premenopausal women, both menstrual suppression and contraception are crucial. Continuation of hormonal intrauterine devices (IUDs) - widely used and highly effective contraceptives that also decrease menstrual flow - is controversial during hematopoietic stem cell transplants (SCTs) due to infectious and vaginal bleeding concerns. CASE REPORT: A 23-year-old nulligravid female was diagnosed with acute myeloid leukemia (AML, positive for FLT3-ITD, DNMT3A and RUNX1, with normal cytogenetics)...
April 2017: Anticancer Research
https://www.readbyqxmd.com/read/28352949/from-prescription-only-rx-to-over-the-counter-otc-status-in-germany-2006-2015-pharmacological-perspectives-on-regulatory-decisions
#7
Eva Barrenberg, Edeltraut Garbe
PURPOSE: Little is known about the extent of switches from prescription-only (Rx) to over-the-counter (OTC) status in Europe and about the pharmacological properties of the switched substances. The objectives of this study were to provide an overview of the substances that were switched from Rx to OTC status in Germany between 2006 and 2015 and to assess their pharmacological properties. METHODS: Session minutes of the German Expert Advisory Committee for Prescription-Only Issues, changes to the German Ordinance on Prescription-Only Medicines and the Summary of Product Characteristics of the switched substances were analysed...
March 28, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28351175/hormonal-contraception-venous-and-arterial-disease
#8
Angelo Cagnacci
OBJECTIVES: The aim of this review was to evaluate whether the biological and epidemiological evidence is concordant in suggesting that levonorgestrel (LNG)-based hormonal contraceptives (HCs) are safer than newer formulations with regard to their effect on the cardiovascular system. METHODS: A narrative review was carried out of the modification of risk factors for venous thromboembolism (VTE) and arterial diseases induced by different HCs. Limits and concordance with epidemiological data were addressed...
March 29, 2017: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/28349880/anti-inflammatory-and-antithrombotic-effects-of-nicotine-exposure-in-oral-contraceptive-induced-insulin-resistance-is-glucocorticoid-independent
#9
Lawrence Aderemi Olatunji, Olugbenga Samuel Michael, Oluwaseun Aremu Adeyanju, Emmanuel Damilare Areola, Ayodele Olufemi Soladoye
BACKGROUND: Reports showed that estrogen-progestin oral contraceptive (COC) or tobacco smoking causes increased risk of cardiovascular diseases (CVD) in premenopausal women. Studies also suggest that nicotine; a major tobacco alkaloid may worsen or improve atherothrombotic CVD. Altered hemorheology, prothrombotic and pro-inflammatory biomarkers, have been implicated in the development of atherothrombotic CVD events. However, the effect of non-smoking nicotine exposure on these biomarkers during COC treatment is not yet established...
December 19, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28346240/combined-oral-medroxyprogesterone-levonorgestrel-intrauterine-system-treatment-for-women-with-grade-2-stage-ia-endometrial-cancer
#10
Ji Young Hwang, Da Hee Kim, Hyo Sook Bae, Mi-La Kim, Yong Wook Jung, Bo Seong Yun, Seok Ju Seong, Eunah Shin, Mi Kyoung Kim
OBJECTIVE: The aim of this study was to evaluate the oncologic and pregnancy outcomes of combined oral medroxyprogesterone acetate (MPA)/levonorgestrel-intrauterine system (LNG-IUS) treatment in young women with grade 2-differentiated stage IA endometrial adenocarcinoma who wish to preserve fertility. METHODS: We retrospectively reviewed the medical records of patients with grade 2 stage IA endometrial adenocarcinoma who had received fertility-sparing treatment at CHA Gangnam Medical Center between 2011 and 2015...
March 24, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28342716/immediate-postpartum-intrauterine-device-and-implant-program-outcomes-a-prospective-analysis
#11
Jennifer L Eggebroten, Jessica N Sanders, David K Turok
BACKGROUND: In-hospital placement of intrauterine devices and contraceptive implants following vaginal and cesarean delivery is increasingly popular and responds to maternal motivation for highly effective postpartum contraception. Immediate postpartum intrauterine device insertion is associated with higher expulsion than interval placement, but emerging evidence suggests that the levonorgestrel intrauterine device may have a higher expulsion rate than the copper intrauterine device. OBJECTIVE: This study evaluated in-hospital provision, expulsion, and 6-month continuation of immediate postpartum copper T380 intrauterine devices, levonorgestrel intrauterine devices, and contraceptive implants...
March 23, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28330857/estimated-disability-adjusted-life-years-averted-by-free-of-charge-provision-of-the-levonorgestrel-releasing-intrauterine-system-over-a-9-year-period-in-brazil
#12
Jessica M Ferreira, Ilza Monteiro, Arlete Fernandes, Maria V Bahamondes, Ana Pitoli, Luis Bahamondes
BACKGROUND: The objective was to analyse the contribution of the provision at no cost to users of the 20 µg/day levonorgestrel-releasing intrauterine system (LNG-IUS) towards disability-adjusted life years (DALY) averted over a 9-year period. METHODS: We analysed data from 15 030 new users of the LNG-IUS who had the device inserted at 26 Brazilian teaching hospitals between January 2007 and December 2015. The devices came from the International Contraceptive Access Foundation (ICA), a not-for-profit foundation that donates the devices to developing countries for use by low-income women who desire long-term contraception and who freely choose to use this device...
March 22, 2017: Journal of Family Planning and Reproductive Health Care
https://www.readbyqxmd.com/read/28325119/conservative-management-in-ureteric-hydronephrosis-due-to-deep-endometriosis-could-the-levonorgestrel-intrauterine-device-be-an-option
#13
Elisa Simón, Álvaro Tejerizo, José Luis Muñoz, Carmen Álvarez, Laura Marqueta, Jesús S Jiménez
Endometriosis can affect up to 10% of women of reproductive age, in a wide range of clinical presentations that vary from mild to severe or deep endometriosis. Deep endometriosis can affect the urinary tract in 1-5% to 15-25% cases. Even though deep endometriosis' surgeries are usually complex with higher rate of complications, conservative management is not always considered as an option because of its high failure rates. This paper describes two cases of deep endometriosis with ureteric involvement (hydronephrosis) treated conservatively with a double-pigtail stent plus a Levonorgestrel intrauterine device, after conservative surgery, who remained symptom free with no evidence of recurrence at 3 years follow-up, avoiding radical high-risk surgery...
March 21, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28323981/ovarian-lipid-metabolism-modulates-circulating-lipids-in-premenopausal-women
#14
Jeffrey T Jensen, Ilana B Addis, Jon D Hennebold, Randy L Bogan
Context: The premenopausal circulating lipid profile may be linked to the hormonal profile and ovarian lipid metabolism. Objective: Assess how estradiol, progesterone, and ovarian lipid metabolism contribute to the premenopausal lipid profile. Also, evaluate the acute effects of a common hormonal oral contraceptive (OC) on circulating lipids. Design: Experimental crossover with repeated measures. Setting: Academic hospitals...
January 6, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28322770/iud-use-among-parous-women-and-risk-of-uterine-perforation-a-secondary-analysis
#15
Klaas Heinemann, Clare Barnett, Suzanne Reed, Sabine Möhner, Thai Do Minh
OBJECTIVE: The objective of the study was to determine if delivery and lactation are risk factors for complete intrauterine device perforations. STUDY DESIGN: We performed a reanalysis of the European Active Surveillance Study on Intra-Uterine Devices data set using complete penetration of the myometrium as the definition for perforation. RESULTS: Of the 61,448 women enrolled (70% levonorgestrel, 30% copper devices), we identified 58 complete perforations, 30 of which occurred in lactating women...
March 16, 2017: Contraception
https://www.readbyqxmd.com/read/28315664/continuation-of-copper-and-levonorgestrel-intrauterine-devices-a-retrospective-cohort-study
#16
Sharon J Phillips, Lisa G Hofler, Anna M Modest, Lara F B Harvey, Lily H Wu, Michele R Hacker
BACKGROUND: Studies conflict on whether the duration of use of the copper intrauterine device is longer than that of the levonorgestrel intrauterine device, and whether women who continue using intrauterine devices differ from those who discontinue. OBJECTIVE: We sought to assess continuation rates and performance of levonorgestrel intrauterine devices compared with copper intrauterine devices over a 5-year period. STUDY DESIGN: We performed a retrospective cohort study of 1164 individuals who underwent intrauterine device placement at an urban academic medical center...
March 16, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28315609/the-levonorgestrel-releasing-intrauterine-device-potentiates-stress-reactivity
#17
Jurate Aleknaviciute, Joke H M Tulen, Yolanda B De Rijke, Christian G Bouwkamp, Mark van der Kroeg, Mirjam Timmermans, Vincent L Wester, Veerle Bergink, Witte J G Hoogendijk, Henning Tiemeier, Elisabeth F C van Rossum, Cornelis G Kooiman, Steven A Kushner
BACKGROUND: The levonorgestrel-releasing intrauterine device (LNG-IUD) is currently recommended as a first-line contraceptive with an exclusively local intrauterine influence. However, recent clinical trials have identified side effects of LNG-IUD that appear to be systemically mediated, including depressed mood and emotional lability. METHODS: We performed two experimental studies and a cross-sectional study. For each study, women were included from three groups: LNG-IUD (0...
February 28, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28299789/menstrual-management-in-developmentally-delayed-adolescent-females
#18
Irene Chuah, Alexandra McRae, Kim Matthews, Ann M Maguire, Katharine Steinbeck
BACKGROUND: Requests for assistance in menstrual management and menstrual suppression are a common, emotive and sometimes controversial aspect of adolescent disability care. AIMS: To review the uptake and outcomes of menstrual suppression among adolescent patients with developmental delay. METHODS: A retrospective review of the medical records of adolescent females with intellectual disability referred for menstrual management to the Paediatric and Adolescent Gynaecology Clinic, Children's Hospital at Westmead, Sydney, for the three-year period between January 1, 2010 and January 1, 2013...
March 15, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28292452/sometimes-you-do-get-a-second-chance-emergency-contraception-for-adolescents
#19
REVIEW
Ellen S Rome, Veronica Issac
Unplanned or unintended pregnancy remains a significant challenge for adolescents; many teens who plan ahead but opt not to choose long-acting reversible contraceptive methods have high failure rates with condom usage, oral contraceptives, and other less long-acting methods. Emergency contraception (EC) remains a necessity for those adolescents seeking a second chance to prevent the unintended consequences of unplanned sexual activity. At present, 5 postcoital methods remain available as EC globally: intrauterine devices, ulipristal acetate, a selective progesterone modulator, mifepristone; levonorgestrel, and ethinyl estradiol plus levonorgestrel or norgestrel (rarely used now that progestin only methods are more readily available)...
April 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28290977/actinomyces-related-tubo-ovarian-abscess-in-a-poorly-controlled-type-ii-diabetic-with-a-copper-intrauterine-device
#20
Ashley L Sawtelle, Nicole P Chappell, Caela R Miller
BACKGROUND: The historic association of Actinomyces israelii infection with intrauterine devices (IUDs) has long been recognized. In recent years, the risk of developing pelvic inflammatory disease with a copper or levonorgestrel IUD has been less than 1% in women who are low risk for sexually transmitted infections. IUD-related pelvic infections secondary to actinomyces have largely vanished from contemporary practice. CASE: A 49-year-old using a copper IUD for contraception with poorly controlled type II diabetes mellitus was admitted for suspected tubo-ovarian abscess on the basis of abdominopelvic pain, leukocytosis, and computed tomography findings...
March 2017: Military Medicine
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