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thyroid contraceptives

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
Emilie Cordina-Duverger, Christophe Leux, Monica Neri, Catherine Tcheandjieu, Anne-Valérie Guizard, Claire Schvartz, Thérèse Truong, Pascal Guénel
The three times higher incidence of thyroid cancer in women compared to men points to a role of female sex hormones in its etiology. However the effects of these factors are poorly understood. We analyzed the association between thyroid cancer and hormonal and reproductive factors among women enrolled in CATHY, a population-based case-control study conducted in France. The study included 430 cases of papillary thyroid cancer and 505 controls frequency-matched on age and area of residence. The odds ratios for thyroid cancer increased with age at menarche (p trend 0...
April 17, 2017: Cancer Epidemiology
Anastasia K Armeni, Konstantinos Assimakopoulos, Dimitra Marioli, Vassiliki Koika, Euthychia Michaelidou, Niki Mourtzi, Gregoris Iconomou, Neoklis A Georgopoulos
Over the past decades, research attention has increasingly been paid to the neurobiological component of sexual behavior. The aim of the present study was to investigate the correlation of estrogen receptor α (ERA) gene polymorphism (rs2234693-PvuII) (T→C substitution) and oxytocin receptor gene polymorphism (rs53576) (G→A substitution) with sexuality parameters of young, healthy women. One hundred thirty-three Greek heterosexual women, students in higher education institutions, 20-25 years of age, sexually active, with normal menstrual cycles (28-35 days), were recruited in the study...
January 2017: Endocrine Connections
Erling Thom
Postpartum effluvium is a well-known clinical fact. However, following some minor research activities in the 1960s, very little has happened on the research front of the subject. It was hypothesized that postpartum hair loss might be a manifestation of a change in the hair growth cycle occurring normally during pregnancy. Recently, new research has been published trying to explain the mechanism of action behind this frequently occurring hair growth disruption, and to develop a functional treatment schedule and regime...
September 23, 2016: Journal of Cosmetic Dermatology
Yu Li, Ping Pan, Ping Yuan, Qi Qiu, Dongzi Yang
BACKGROUND: Resistant ovary syndrome (ROS) is a rare endocrine disorder characterized with hypergonadotrophic hypogonadism. Infertility is a common complaint of woman presenting with ROS, and little progress has been made in term of reproduction with the patient's own gamete. So far only one case report of live birth has been reported after in vitro maturation (IVM) of oocytes in a patient suffering from ROS in 2013. CASE PRESENTATION: A secondary infertile woman of 33 years-old was manifested with oligomenorrhea and markedly increased gonadotropin levels around postmenopausal range, but had normal antral follicle count, normal serum inhibin B and anti-Müllerian hormone levels...
September 6, 2016: Journal of Ovarian Research
Jorge A Zamora-Legoff, Elena Myasoedova, Eric L Matteson, Sara J Achenbach, Cynthia S Crowson
The aim of this study was to examine drug prescribing trends for patients with rheumatoid arthritis (RA) over recent years and compare them to matched non-RA subjects. Retrospective prescription data were examined from 2005 to 2014 in a population-based incidence cohort of patients with RA and comparable non-RA subjects. Drugs for or related to the treatment of RA were excluded. Comparisons between cohorts of percentages of patients with at least one prescription in a specific drug category/class were performed using Poisson regression models adjusted for age and sex...
October 2016: Clinical Rheumatology
F Parazzini, G Esposito, L Tozzi, S Noli, S Bianchi
Genetic profile, inflammation, hormonal activity, menstrual cyclicity, organochlorine burden, prostaglandin metabolism and immunological factors have been suggested to play a role in the establishment and development of endometriosis. From the epidemiological perspective, several risk factors have been studied to suggest or support the different aetiological hypotheses. Social class and family history apart, the factors most consistently associated with endometriosis are early age at menarche and long and heavy menstrual cycles...
April 30, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Erica E Marsh, Lia A Bernardi, Marissa L Steinberg, Peter J de Chavez, Jenny A Visser, Mercedes R Carnethon, Donna D Baird
OBJECTIVE: To characterize normative antimüllerian hormone (AMH) levels and ascertain which factors are associated with AMH in a large cohort of reproductive-age women. DESIGN: Cross-sectional study. SETTING: Not applicable. PATIENT(S): A total of 1,654 African-American women (AAW) ages 23-34 at recruitment. INTERVENTION(S): Not applicable. MAIN OUTCOME MEASURE(S): Serum AMH measured using an ultrasensitive ELISA...
August 2016: Fertility and Sterility
Robin Medhi, Banani Das, Arpana Das, Mansur Ahmed, Sonika Bawri, Suditi Rai
PURPOSE: To analyze the adverse obstetrical and perinatal outcome of adolescent mothers associated with first birth. PATIENTS AND METHODS: This prospective case-control study was conducted in a tertiary care teaching hospital of North-East India between January 2014 and December 2014. All adolescent primigravidae completing 28 weeks of gestation with singleton pregnancy and delivered at our institution were included in the study group. Primigravidae aged between 20 and 25 years were taken as a control group...
2016: Adolescent Health, Medicine and Therapeutics
Paula J Adams Hillard
Because 83% of adolescent pregnancies among teens 15 to 19 years old are unintended and because adolescents with chronic medical conditions are as likely to be sexually involved as are healthy teens, preventing unintended pregnancies among teens with chronic endocrine conditions, including diabetes mellitus (both types 1 and 2), PCOS, and thyroid dysfunction, is critically important. Evidence-based guidelines are available to assist with assessment of the risks versus the benefits of specific options for contraception in teens with these and other medical conditions...
August 2015: Adolescent Medicine: State of the Art Reviews
N Aldoori, K Dobson, C R Holden, A J McDonagh, M Harries, A G Messenger
BACKGROUND: Since its first description in 1994, frontal fibrosing alopecia (FFA) has become increasingly common, suggesting that environmental factors are involved in the aetiology. OBJECTIVES: To identify possible causative environmental factors in FFA. METHODS: A questionnaire enquiring about exposure to a wide range of lifestyle, social and medical factors was completed by 105 women with FFA and 100 age- and sex-matched control subjects...
October 2016: British Journal of Dermatology
(no author information available yet)
Surgery is the mainstay of treatment for medullary thyroid cancer. Cytotoxic chemotherapy is generally ineffective in patients with progressive, inoperable, advanced-stage or metastatic tumours. Vandetanib is also authorised in this setting, but it has more harms than benefits. Cabozantinib, like vandetanib, inhibits several tyrosine kinases involved in angiogenesis. Cabozantinib has been authorised in the European Union for use in this setting. In a randomised, placebo-controlled trial in 330 patients, adding cabozantinib to tailored symptomatic treatment did not prolong survival or improve symptoms, despite a favourable effect on tumour imaging and certain laboratory parameters...
January 2016: Prescrire International
Lauren Trimeloni, Jeanne Spencer
Managing breastfeeding problems is an essential part of newborn care. While much is written on breast milk undersupply, little is written on oversupply, sometimes known as hyperlactation or hypergalactia. Infants of mothers with oversupply may have increased or decreased weight gain. Some may have large, frothy stools. They may develop a disordered latch. Mothers may report overly full, leaking breasts. Thyroid function should be assessed. Treatment is mostly anecdotal and includes methods to maintain breast fullness, such as block feedings...
January 2016: Journal of the American Board of Family Medicine: JABFM
Lena Bjergved, Allan Carlé, Torben Jørgensen, Hans Perrild, Peter Laurberg, Anne Krejbjerg, Lars Ovesen, Inge Bülow Pedersen, Lone Banke Rasmussen, Nils Knudsen
BACKGROUND: A role for female reproductive factors in the pathogenesis of thyroid autoimmunity has been suggested. This study investigated the prospective association between parity, abortion, use of oral contraceptive pill (OCP), and use of hormone replacement therapy (HRT), and 11-year change in serum thyrotropin (TSH), as well as change in thyroid peroxidase autoantibody (TPOAb) status. METHODS: A random sample of 4649 people aged 18-65 years participated in a population-based study in the period 1997-1998...
February 2016: Thyroid: Official Journal of the American Thyroid Association
Ann Genovese, Teri Smith, Holly Kramer, Marilyn Augustyn
Beth, whom you have cared for in your primary care practice since she was born, is a 15-year-old adolescent girl with no prior psychiatric history who developed significant symptoms of clinical depression, associated with self-injurious behavior (cutting on wrists, arms, and thighs). She denied any known precipitant for her depression.She is a ninth grade honors student in the gifted program at a local high school and is described as a talented musician, playing multiple musical instruments as well as soccer and basketball...
January 2016: Journal of Developmental and Behavioral Pediatrics: JDBP
Kristina M Delaski, Kathryn C Gamble
Thyroid hormones regulate a variety of physiologic functions including metabolism, growth, and reproductive cycling, and these other hormones can impact the thyroid function via the hypothalamic-pituitary axis. For instance, the gonadotropin-releasing hormone agonist, deslorelin, used in nondomestic carnivores for contraception and behavioral control, down-regulates reproductive hormones through this mechanism and so may impact thyroid function. Due to clinical concerns of hypothyroidism in a bachelor group of adult male Pallas' cats (Otocolobus (Felis) manul) which also had deslorelin implants, serum samples from treated captive (n = 8) individuals, untreated captive (n = 25), and free-ranging (n = 9) individuals were analyzed for thyroid hormone concentrations...
December 2015: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Yijuan Cao, Zengyan Wang, Juan Gu, Fangfang Hu, Yujuan Qi, Qianqian Yin, Qingqing Sun, Guotao Li, Bin Quan
Many studies have investigated the association between hormonal and reproductive factors and thyroid cancer risk but provided contradictory and inconclusive findings. This review was aimed at precisely estimating this association by pooling all available epidemiological studies. 25 independent studies were retrieved after a comprehensive literature search in databases of PubMed and Embase. Overall, common hormonal factors including oral contraceptive and hormone replacement therapy did not alter the risk of thyroid cancer...
2015: BioMed Research International
Isabel Hsu, Elizabeth Burtman, Jessica Ferris, Juliana Austin
No abstract text is available yet for this article.
June 2015: Pediatric Endocrinology Reviews: PER
Salvatore Italia, Helmut Brand, Joachim Heinrich, Dietrich Berdel, Andrea von Berg, Silke Britta Wolfenstetter
PURPOSE: The objective was to analyse paediatric drug utilization in relation to self-medication, prescription drugs, and the most reported therapeutic drug categories. METHODS: Data were collected for 3013 children on their utilization of drugs (4-week prevalence) from a German birth cohort study (GINIplus, 15-year follow-up) using a self-administered questionnaire. The drugs were grouped into over-the-counter drugs and prescription drugs, and were classified according to the anatomical therapeutic chemical classification system...
November 2015: Pharmacoepidemiology and Drug Safety
Lang Wu, Jingjing Zhu
STUDY QUESTION: Is there an association between oral contraceptive (OC) use and thyroid cancer risk in females? SUMMARY ANSWER: OC use is inversely associated with the risk of thyroid cancer in females. WHAT IS KNOWN ALREADY: OC use may be relevant to the risk of thyroid cancer as suggested by some epidemiological studies. However, the findings are inconsistent regarding the effect direction and size. STUDY DESIGN, SIZE, DURATION: This systematic review and meta-analysis included a total of 1906 patients from about 1...
September 2015: Human Reproduction
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