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https://www.readbyqxmd.com/read/28633324/mammographic-density-reduction-as-a-prognostic-marker-for-postmenopausal-breast-cancer-results-using-a-joint-longitudinal-survival-modelling-approach
#1
Therese M-L Andersson, Michael J Crowther, Kamila Czene, Per Hall, Keith Humphreys
Previous studies have linked reductions in mammographic density after a breast cancer diagnosis to an improved prognosis. These studies focused on short-term change, using a two-stage process, treating estimated change as a fixed covariate in a survival model. We propose the use of a joint longitudinal-survival model. This enables us to model long-term trends in density while accounting for drop-out as well as for measurement error. We study the change in mammographic density after a breast cancer diagnosis and its association with prognosis (measured by cause-specific mortality), overall and with respect to hormone replacement therapy and tamoxifen treatment...
June 13, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28632729/radiation-associated-breast-cancer-and-gonadal-hormone-exposure-a-report-from-the-childhood-cancer-survivor-study
#2
Chaya S Moskowitz, Joanne F Chou, Charles A Sklar, Dana Barnea, Cécile M Ronckers, Danielle Novetsky Friedman, Joseph P Neglia, Lucie Turcotte, Rebecca M Howell, Tara O Henderson, Gregory T Armstrong, Wendy M Leisenring, Leslie L Robison, Flora E van Leeuwen, Malcolm C Pike, Kevin C Oeffinger
BACKGROUND: The relationship between hormone exposure and breast cancer risk in women treated with chest radiotherapy for childhood cancer is uncertain. METHODS: Participants included 1108 females from the Childhood Cancer Survivor Study who were diagnosed with childhood cancer 1970-1986, treated with chest radiotherapy, and survived to ages ⩾20 years. Hazard ratios (HRs) and 95% confidence intervals (CIs) from Cox models adjusted for chest radiation field, delivered dose, anthracycline exposure, and age at childhood cancer estimated risk...
June 20, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28632526/persistent-hypothyroid-symptoms-in-a-patient-with-a-normal-thyroid-stimulating-hormone-level
#3
Jacqueline Jonklaas
PURPOSE OF REVIEW: A subset of patients being treated for hypothyroidism do not feel well while taking levothyroxine (LT4) replacement therapy, despite having a normal serum thyroid stimulating hormone level. Pursuing a relative triiodothyronine deficiency as a potential explanation for patient dissatisfaction, has led to trials of combination therapy with liothyronine (LT3), with largely negative outcomes. This review attempts to reconcile these diverse findings, consider potential explanations, and identify areas for future research...
June 16, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/28631746/prevalence-of-androgen-deficiency-in-chronic-spinal-cord-injury-patients-suffering-from-erectile-dysfunction
#4
M Behnaz, Z Majd, M Radfar, H Ajami, M Qorbani, A Kokab
STUDY DESIGN: Retrospective cross-sectional study. OBJECTIVES: To estimate the prevalence of biochemical androgen deficiency in Iranian spinal cord injured men suffering from erectile dysfunction (ED) and to determine factors related to this problem. SETTING: An andrology clinic of a teaching hospital in Tehran. METHODS: Men, 18 years of age and older, with chronic (>2 years) spinal cord injury (SCI) suffering from ED were recruited...
June 20, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28628672/low-dose-exposure-to-bisphenols-a-f-and-s-of-human-primary-adipocyte-impacts-coding-and-non-coding-rna-profiles
#5
Marie Verbanck, Mickaël Canouil, Audrey Leloire, Véronique Dhennin, Xavier Coumoul, Loïc Yengo, Philippe Froguel, Odile Poulain-Godefroy
Bisphenol A (BPA) exposure has been suspected to be associated with deleterious effects on health including obesity and metabolically-linked diseases. Although bisphenols F (BPF) and S (BPS) are BPA structural analogs commonly used in many marketed products as a replacement for BPA, only sparse toxicological data are available yet. Our objective was to comprehensively characterize bisphenols gene targets in a human primary adipocyte model, in order to determine whether they may induce cellular dysfunction, using chronic exposure at two concentrations: a "low-dose" similar to the dose usually encountered in human biological fluids and a higher dose...
2017: PloS One
https://www.readbyqxmd.com/read/28621876/social-health-and-ocular-factors-associated-with-primary-open-angle-glaucoma-amongst-chinese-singaporeans
#6
Nathalie Chiam, Mani Baskaran, Zheng Li, Shamira Perera, David Goh, Rahat Husain, Chiea Chuen Khor, Ching-Yu Cheng, Tin Aung FRCOphth, Eranga N Vithana
IMPORTANCE: There is limited literature on the association of lifestyle and health factors related to primary open angle glaucoma amongst Asians. BACKGROUND: This study evaluated the association of primary open angle glaucoma with smoking, health and ocular factors among Chinese Singaporeans. DESIGN: Case-control study PARTICIPANTS: 711 primary open angle glaucoma patients from a Singapore hospital and 2788 population-based controls. METHODS: Subjects underwent clinical examination and completed a questionnaire with details on family history of glaucoma, comorbidities, smoking, alcohol consumption, age at menopause and use of hormone replacement therapy...
June 16, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28620499/intrauterine-death-following-intraamniotic-triiodothyronine-and-thyroxine-therapy-for-fetal-goitrous-hypothyroidism-associated-with-polyhydramnios-and-caused-by-a-thyroglobulin-mutation
#7
Pradeep Vasudevan, Corrina Powell, Adeline K Nicholas, Ian Scudamore, James Greening, Soo-Mi Park, Nadia Schoenmakers
In the absence of maternal thyroid disease or iodine deficiency, fetal goitre is rare and usually attributable to dyshormonogenesis, for which genetic ascertainment is not always undertaken in the UK. Mechanical complications include tracheal and oesophageal compression with resultant polyhydramnios, malpresentation at delivery and neonatal respiratory distress. We report an Indian kindred in which the proband (first-born son) had congenital hypothyroidism (CH) without obvious neonatal goitre. His mother's second pregnancy was complicated by fetal hypothyroid goitre and polyhydramnios, prompting amniotic fluid drainage and intraamniotic therapy (with liothyronine, T3 and levothyroxine, T4)...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28620497/painful-ovulation-in-a-46-xx-sry-ve-adult-male-with-sox9-duplication
#8
Nandini Shankara Narayana, Anne-Maree Kean, Lisa Ewans, Thomas Ohnesorg, Katie L Ayers, Geoff Watson, Arthur Vasilaras, Andrew H Sinclair, Stephen M Twigg, David J Handelsman
46,XX disorders of sexual development (DSDs) occur rarely and result from disruptions of the genetic pathways underlying gonadal development and differentiation. We present a case of a young phenotypic male with 46,XX SRY-negative ovotesticular DSD resulting from a duplication upstream of SOX9 presenting with a painful testicular mass resulting from ovulation into an ovotestis. We present a literature review of ovulation in phenotypic men and discuss the role of SRY and SOX9 in testicular development, including the role of SOX9 upstream enhancer region duplication in female-to-male sex reversal...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28619018/efficient-soluble-expression-of-disulfide-bonded-proteins-in-the-cytoplasm-of-escherichia-coli-in-fed-batch-fermentations-on-chemically-defined-minimal-media
#9
Anna Gąciarz, Narendar Kumar Khatri, M Lourdes Velez-Suberbie, Mirva J Saaranen, Yuko Uchida, Eli Keshavarz-Moore, Lloyd W Ruddock
BACKGROUND: The production of recombinant proteins containing disulfide bonds in Escherichia coli is challenging. In most cases the protein of interest needs to be either targeted to the oxidizing periplasm or expressed in the cytoplasm in the form of inclusion bodies, then solubilized and re-folded in vitro. Both of these approaches have limitations. Previously we showed that soluble expression of disulfide bonded proteins in the cytoplasm of E. coli is possible at shake flask scale with a system, known as CyDisCo, which is based on co-expression of a protein of interest along with a sulfhydryl oxidase and a disulfide bond isomerase...
June 15, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28615185/hormone-replacement-treatment-choices-in-complete-androgen-insensitivity-syndrome-an-audit-of-an-adult-clinic
#10
Jennifer K Y Ko, Thomas F J King, Louise Williams, Sarah M Creighton, Gerard S Conway
OBJECTIVE: To review the treatment choices of women with Complete Androgen Insensitivity Syndrome (CAIS) at a single tertiary centre. DESIGN: Retrospective review Patients: Women with CAIS identified from our database. RESULTS: The study group comprised 141 women with CAIS. Eleven percent of women had gonads in situ, 3 of which were under workup for gonadectomy. The age of gonadectomy in the remainder was 17 (0.1-53) years old. The most common form of HRT was oral oestrogen or transdermal oestrogen in 80%...
June 14, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28612709/potential-phytoestrogen-alternatives-exert-cardio-protective-mechanisms-via-estrogen-receptors
#11
Marthandam Asokan Shibu, Wei-Wen Kuo, Chia-Hua Kuo, Cecilia-Hsuan Day, Chia-Yao Shen, Li-Chin Chung, Chao-Hung Lai, Lung-Fa Pan, V Vijaya Padma, Chih-Yang Huang
The 17 beta-estradiol (E2) is a sex hormone that is most abundant and most active estrogen in premenopausal women. The importance of E2 in providing cardioprotection and reducing the occurrence of heart disease in women of reproductive age has been well recognized. There are three subtype of estrogen receptors (ERs), including ERα, ERβ and GPR30 have been identified and accumulating evidence reveal their roles on E2-mediated genomic and nongenomic pathway in cardiomyocytes against various cardiac insults...
June 2017: BioMedicine
https://www.readbyqxmd.com/read/28611949/pseudomalabsorption-of-levothyroxine-a-challenge-for-the-endocrinologist-in-the-treatment-of-hypothyroidism
#12
Nancy Van Wilder, Bert Bravenboer, Sarah Herremans, Nathalie Vanderbruggen, Brigitte Velkeniers
BACKGROUND: Hypothyroidism due to non-compliance with levothyroxine therapy (pseudomalabsorption) is rare. The diagnosis is considered in patients with persistent severe hypothyroidism despite treatment with large doses of levothyroxine. Intestinal malabsorption, drug and dietary interference with levothyroxine absorption and nephrotic syndrome should be excluded. The diagnosis of pseudomalabsorption can be demonstrated by using "an oral 1,000 µg of levothyroxine test" showing a rapid decrease in thyroid-stimulating hormone and increase in thyroxine...
February 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/28609392/the-role-of-hormone-therapy-in-the-management-of-severe-postpartum-depression-in-patients-with-turner-syndrome
#13
Alison K Shea, Wendy Wolfman
OBJECTIVE: Premature ovarian failure associated with Turner syndrome presents clinicians with a vast range of health concerns, including infertility, cardiovascular disease, and decreased bone mineral density, in addition to psychological sequelae. Hormone therapy is paramount in managing these complications, but the additional needs in the postpartum period for those who are able to carry out a successful pregnancy have not been described. METHODS: We present a case of severe postpartum depression (PPD) with psychotic features in a patient with Turner syndrome, which presented at 4 weeks after the birth of her first child via egg donation RESULTS:: We describe the case of a previously well 32-year-old patient with an 46 X, i(Xq) karyotype, who went through a 4-week intensive inpatient treatment course for PPD, requiring electroconvulsant therapy for persistent infanticidal and suicidal ideation...
June 12, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28608527/perfect-storm-therapeutic-plasma-exchange-for-a-patient-with-thyroid-storm
#14
Andrea M McGonigle, Aaron A R Tobian, Jennifer L Zink, Karen E King
Thyroid storm is a potentially lethal complication of hyperthyroidism with increased thyroid hormones and exaggerated symptoms of thyrotoxicosis. First-line therapy includes methimazole (MMI) or propylthiouracil (PTU) to block production of thyroid hormones as a bridge toward definitive surgical treatment. Untreated thyroid storm has a mortality rate of up to 30%; this is particularly alarming when patients cannot tolerate or fail pharmacotherapy, especially if they cannot undergo thyroidectomy. Therapeutic plasma exchange (TPE) is an ASFA category III indication for thyroid storm, meaning the optimum role of this therapy is not established, and there are a limited number of cases in the literature...
June 13, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28605821/abnormal-uterine-bleeding
#15
Cristina Laguna Benetti-Pinto, Ana Carolina Japur de Sá Rosa-E-Silva, Daniela Angerame Yela, José Maria Soares Júnior
Abnormal uterine bleeding is a frequent condition in Gynecology. It may impact physical, emotional sexual and professional aspects of the lives of women, impairing their quality of life. In cases of acute and severe bleeding, women may need urgent treatment with volumetric replacement and prescription of hemostatic substances. In some specific cases with more intense and prolonged bleeding, surgical treatment may be necessary. The objective of this chapter is to describe the main evidence on the treatment of women with abnormal uterine bleeding, both acute and chronic...
June 12, 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28605338/effect-of-hispolon-from-phellinus-lonicerinus-agaricomycetes-on-estrogen-receptors-aromatase-and-cyclooxygenase-ii-in-mcf-7-breast-cancer-cells
#16
Junzhi Wang, Beiyan Chen, Fang Hu, Xueling Zou, Haili Yu, Jinyu Wang, Hongqi Zhang, Haibo He, Wenfeng Huang
Phytoestrogen has previously been proposed as an alternative to hormone replacement therapy. Hispolon has been found to have phytoestrogenic properties. However, the possible effects of hispolon on estrogen receptors and other related molecules remain to be determined. This study was performed mainly to confirm the estrogenic function of hispolon as it relates to estrogen receptors, aromatase, and cyclooxygenase 2 (COX-2). Hispolon was shown to increase the serum 17β-estradiol in vivo. Immunohistochemical staining methods showed that hispolon exhibited a biphasic effect on ERα/β and aromatase expression in MCF-7 cells...
2017: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/28601917/hormone-replacement-therapy-and-breast-cancer-survival-a-systematic-review-and-meta-analysis-of-observational-studies
#17
REVIEW
Xinnian Yu, Siying Zhou, Jinyan Wang, Qian Zhang, Junchen Hou, Lingping Zhu, Yunjie He, Jianhua Zhao, Shanliang Zhong
Previous studies on the association between hormone replacement therapy (HRT) and breast cancer survival have yielded mixed results. We aimed to perform a meta-analysis to assess the association with all available studies. Relevant studies were identified by searching PubMed and EMBASE to April 2017. We calculated the summary hazard ratios (HRs) and 95% confidence intervals (CIs) using random-effects models. The dose-response relationship was assessed by random-effects meta-analysis and dose-response meta-regression models...
June 10, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28601616/fructose-rich-diet-and-insulin-action-in-female-rat-heart-estradiol-friend-or-foe
#18
REVIEW
Maja Bundalo, Snjezana Romic, Snezana Tepavcevic, Mojca Stojiljkovic, Aleksandra Stankovic, Maja Zivkovic, Goran Koricanac
Increased intake of fructose in humans and laboratory animals is demonstrated to be a risk factor for development of metabolic disorders (insulin resistance, metabolic syndrome, type 2 diabetes) and cardiovascular diseases. On the other hand, estradiol is emphasized as a cardioprotective agent. The main goal of this review is to summarize recent findings on damaging cardiac effects of fructose-rich diet in females, mostly experimental animals, and to evaluate protective capacity of estradiol. Published results of our and other research groups indicate mostly detrimental effects of fructose-rich diet on cardiac insulin signaling molecules, glucose and fatty acid metabolism, nitric oxide production and ion transport, as well as renin-angiotensin system and inflammation...
June 7, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28601458/ad-libitum-milk-replacer-feeding-but-not-butyrate-supplementation-affects-growth-performance-as-well-as-metabolic-and-endocrine-traits-in-holstein-calves
#19
D Frieten, C Gerbert, C Koch, G Dusel, K Eder, E Kanitz, J M Weitzel, H M Hammon
The enhanced growth performance of calves fed a higher plane of nutrition pre-weaning is well documented, and the effect of butyrate on the development of the gastrointestinal tract in calves has been evaluated. The aim of this study was to examine the synergistic effects of ad libitum milk replacer (MR) feeding and butyrate supplementation on growth performance and energy metabolism in calves. Sixty-four (32 male, 32 female) Holstein calves were examined from birth until wk 11 of life. Calves received MR either ad libitum (Adl) or restrictively (Res) with (AdlB+, ResB+) or without (AdlB-, ResB-) 0...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28595972/17%C3%AE-ethynylestradiol-alters-the-peritoneal-immune-response-of-gilthead-seabream
#20
N E Gómez González, I Cabas, M C Rodenas, M Arizcun, V Mulero, A García Ayala
17α-Ethynylestradiol (EE2), a synthetic estrogen used in most oral contraceptives pills and hormone replacement therapies, is found in many water bodies, where it can modulate the fish immune response. EE2 acts as an endocrine disruptor in gilthead seabream, Sparus aurata L., a marine teleost fish of great economic value in Mediterranean aquaculture, as it induces hepatic vitellogenin gene (vtg) expression. Moreover, EE2 also alters the capacity of gilthead seabream to appropriately respond to infection although it does not behave as an immunosuppressor...
June 9, 2017: Developmental and Comparative Immunology
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