Circulating Estrone Levels Are Associated Prospectively with Diabetes Risk in Men of the Framingham Heart Study
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Alpha-Fetoprotein: the Major High-Affinity Estrogen Binder in Rat
Proc. Natl. Acad. Sci. USA Vol. 73, No. 5, pp. 1452-1456, May 1976 Biochemistry Alpha-fetoprotein: The major high-affinity estrogen binder in rat uterine cytosols (rat alpha-fetoprotein/estrogen receptors) JOSE URIEL, DANIELLE BOUILLON, CLAUDE AUSSEL, AND MICHELLE DUPIERS Institut de Recherches Scientifiques sur le Cancer, Boite Postale No. 8, 94800 Villejuif, France Communicated by Frangois Jacob, February 3, 1976 ABSTRACT Evidence is presented that alpha-fetoprotein nates in hypotonic solutions, whereas in salt concentrations (AFP), a serum globulin, accounts mainly, if not entirely, for above 0.2 M the 4S complex is by far the major binding enti- the high estrogen-binding properties of uterine cytosols from immature rats. By the use of specific immunoadsorbents to ty. AFP and by competitive assays with unlabeled steroids and The relatively high levels of serum AFP in immature rats pure AFP, it has been demonstrated that in hypotonic cyto- prompted us to explore the contribution of AFP to the estro- sols AFP is present partly as free protein with a sedimenta- gen-binding capacity of uterine homogenates. The results tion coefficient of about 4-5 S and partly in association with obtained with specific anti-AFP immunoadsorbents (12, 13) some intracellular constituent(s) to form an 8S estrogen-bind- provided evidence that at low salt concentrations,'AFP ac-' ing entity. The AFP - 8S transformation results in a loss of antigenic reactivity to antibodies against AFP and a signifi- counts for most of the estrogen-binding capacity associated cant change in binding specificity. This change in binding with the 4-5S macromolecular complex. -
Antiestrogenic Action of Dihydrotestosterone in Mouse Breast
Antiestrogenic action of dihydrotestosterone in mouse breast. Competition with estradiol for binding to the estrogen receptor. R W Casey, J D Wilson J Clin Invest. 1984;74(6):2272-2278. https://doi.org/10.1172/JCI111654. Research Article Feminization in men occurs when the effective ratio of androgen to estrogen is lowered. Since sufficient estrogen is produced in normal men to induce breast enlargement in the absence of adequate amounts of circulating androgens, it has been generally assumed that androgens exert an antiestrogenic action to prevent feminization in normal men. We examined the mechanisms of this effect of androgens in the mouse breast. Administration of estradiol via silastic implants to castrated virgin CBA/J female mice results in a doubling in dry weight and DNA content of the breast. The effect of estradiol can be inhibited by implantation of 17 beta-hydroxy-5 alpha-androstan-3-one (dihydrotestosterone), whereas dihydrotestosterone alone had no effect on breast growth. Estradiol administration also enhances the level of progesterone receptor in mouse breast. Within 4 d of castration, the progesterone receptor virtually disappears and estradiol treatment causes a twofold increase above the level in intact animals. Dihydrotestosterone does not compete for binding to the progesterone receptor, but it does inhibit estrogen-mediated increases of progesterone receptor content of breast tissue cytosol from both control mice and mice with X-linked testicular feminization (tfm)/Y. Since tfm/Y mice lack a functional androgen receptor, we conclude that this antiestrogenic action of androgen is not mediated by the androgen receptor. Dihydrotestosterone competes with estradiol for binding to the cytosolic estrogen receptor of mouse breast, […] Find the latest version: https://jci.me/111654/pdf Antiestrogenic Action of Dihydrotestosterone in Mouse Breast Competition with Estradiol for Binding to the Estrogen Receptor Richard W. -
Estrone-Compound-Pal-011921
ESTRONE COMPOUND What is this medicine? Estrone (es-trohn) E1 Estrone is a hormone derived from yams and may be given to women who no longer produce a sufficient amount on their own. It may be used to reduce menopause symptoms (e.g., hot flashes, vaginal dryness). It may be used to help prevent bone loss. It may also be used for other conditions as determined by your doctor. Compounded Drug Forms: BLA tablet, sublingual tablet, fast-burst sublingual tablet, vaginal tablet, troche, vaginal suppository, cream, gel What should I tell my health care provider before I take this medicine? Allergy to estrone Pregnant or breastfeeding Have undiagnosed severe vaginal bleeding Active cancer of the breast or uterus A history of blood clots, stroke or heart attacks Smoking while using this medication may increase your risk of blood clots. Have liver dysfunction or disease How should I use this medicine? Follow the package directions provided by Belmar Pharmacy and by your prescriber. Your dosage is based on your medical condition and response to therapy. Follow the dosing schedule provided carefully. Oral tablets may be taken with or without food, if it upsets your stomach take it with a small meal. Sublingual tablets and fast-burst sublingual tablets should be placed under the tongue or between the cheek and gums and held in place until fully dissolved. Avoid swallowing saliva to ensure best absorption into the blood stream. Avoid eating or drinking 15 minutes before or after taking sublingual tablet. Topical products can be applied to the inner arm, upper thigh, back of the knee, tops of the feet and inner wrists. -
Degradation and Metabolite Formation of Estrogen Conjugates in an Agricultural Soil
Journal of Pharmaceutical and Biomedical Analysis 145 (2017) 634–640 Contents lists available at ScienceDirect Journal of Pharmaceutical and Biomedical Analysis j ournal homepage: www.elsevier.com/locate/jpba Degradation and metabolite formation of estrogen conjugates in an agricultural soil a,b b,∗ Li Ma , Scott R. Yates a Department of Environmental Sciences, University of California, Riverside, CA 92521, United States b Contaminant Fate and Transport Unit, U.S. Salinity Laboratory, Agricultural Research Service, United States Department of Agriculture, Riverside, CA 92507, United States a r t i c l e i n f o a b s t r a c t Article history: Estrogen conjugates are precursors of free estrogens such as 17ß-estradiol (E2) and estrone (E1), which Received 10 April 2017 cause potent endocrine disrupting effects on aquatic organisms. In this study, microcosm laboratory Received in revised form 11 July 2017 ◦ experiments were conducted at 25 C in an agricultural soil to investigate the aerobic degradation and Accepted 31 July 2017 metabolite formation kinetics of 17ß-estradiol-3-glucuronide (E2-3G) and 17ß-estradiol-3-sulfate (E2- Available online 1 August 2017 3S). The aerobic degradation of E2-3G and E2-3S followed first-order kinetics and the degradation rates were inversely related to their initial concentrations. The degradation of E2-3G and E2-3S was extraordi- Keywords: narily rapid with half of mass lost within hours. Considerable quantities of E2-3G (7.68 ng/g) and E2-3S Aerobic degradation 17ß-estradiol-3-glucuronide (4.84 ng/g) were detected at the end of the 20-d experiment, particularly for high initial concentrations. -
VI.2 Elements for a Public Summary
VI.2 Elements for a Public Summary VI.2.1 Overview of disease epidemiology In women in menopausal period, the decrease of hormones (estrogen levels) result in genital areas becoming dry, itchy and more easily irritated. Vaginal atrophy is a frequent complaint of these women. Symptoms associated with vulvovaginal atrophy (VVA), such as lack of lubrication and pain with intercourse, affect 20% to 45% of midlife and older women. About 50% of otherwise healthy women over 60 years of age experience symptoms related to urogenital atrophy such as vaginal dryness, dyspareunia, burning, itching, as well as urinary complaints or infections of the lower urinary tract. As these alterations frequently affect the quality of life of postmenopausal women, it is important for doctors to detect their presence and offer treatment options. VI.2.2 Summary of treatment benefits Estriol normalizes the vaginal, cervical and urethral epithelium and thus helps to restore the normal microflora and the physiological pH in the vagina. Moreover, estriol increases the resistance of the vaginal epithelial cells to infection and inflammation and decreases the incidence of urogenital complaints. Estriol, which is an estrogen, can be used in the treatment of vaginal symptoms and complaints (vaginal dryness, itching, discomfort and painful intercourse) due to estrogen deficiency related to menopause (whether naturally or surgically induced). In a randomized clinical trial versus placebo, intravaginal application of a low dose of estriol (50 micrograms per application) the main endpoint was to evaluate the efficacy of the product by evaluation of the change in the maturation value of the vaginal epithelium after 12 weeks of treatment. -
Total Estradiol and Total Testosterone
Laboratory Procedure Manual Analyte: Total Estradiol and Total Testosterone Matrix: Serum Method: Simultaneous Measurement of Estradiol and Testosterone in Human Serum by ID LC-MS/MS Method No: 1033 Revised: as performed by: Clinical Chemistry Branch Division of Laboratory Sciences National Center for Environmental Health contact: Dr. Hubert W. Vesper Phone: 770-488-4191 Fax: 404-638-5393 Email: [email protected] James Pirkle, M.D., Ph.D. Division of Laboratory Sciences Important Information for Users CDC periodically refines these laboratory methods. It is the responsibility of the user to contact the person listed on the title page of each write-up before using the analytical method to find out whether any changes have been made and what revisions, if any, have been incorporated. Total Estradiol and Total Testosterone NHANES 2015-16 Public Release Data Set Information This document details the Lab Protocol for testing the items listed in the following table for SAS file TST_I: VARIABLE NAME SAS LABEL (and SI units) LBXTST Testosterone, total (nmol/L) LBXEST Estradiol (pg/mL) 1 of 49 Total Estradiol and Total Testosterone NHANES 2015-16 Contents 1 Summary of Test Principle and Clinical Relevance 7 1.1 Intended Use 7 1.2 Clinical and Public Health Relevance 7 1.3 Test Principle 8 2 Safety Precautions 10 2.1 General Safety 10 2.2 Chemical Hazards 10 2.3 Radioactive Hazards 11 2.4 Mechanical Hazards 11 2.5 Waste Disposal 11 2.6 Training 11 3 Computerization and Data-System Management 13 3.1 Software and Knowledge Requirements 13 3.2 Sample Information 13 3.3 Data Maintenance 13 3.4 Information Security 13 4 Preparation for Reagents, Calibration Materials, Control Materials, and All Other Materials; Equipment and Instrumentation. -
Estrogen ------Active Ingredient Protective Neurosteroid I.E
Estrogen --------------------------------------------------------------- Active Ingredient protective neurosteroid i.e. neuromodulators, neuroprotective and regulate neurotransmission. • Estrogen (Estrone, Estradiol, Estriol) Before you take estrogen What is in this leaflet When you must NOT take it: This leaflet contains some information about your • If you are allergic to the active ingredient medication. It does not take the place of talking to • If the medication is expired or has not been stored your doctor or pharmacist. All medicines have risks correctly and benefits. Your doctor has weighed the risks of you • If you have or have history of breast cancer or taking this medication against the positive benefits other estrogen-dependent tumour they expect it will have for you. If you have any • If you have a history of venous thromboembolism concerns about taking this medicine, please contact (blood clots in the vein) us again or speak with your doctor or pharmacist for more information. Keep this leaflet with the medicine Let us know if you are: as you may need to read it again in the future. • Pregnant, planning on becoming pregnant, or breastfeeding What it is used for • Suffer from any other medical conditions such as migraine, diabetes, epilepsy This medication contains one or more active • or take any other medications ingredients of estrogens (estrone, estradiol, estriol). Estrogens play important roles in stimulating growth For a full list of precautions, please contact our of the reproductive tissues, maintaining healthy pharmacy bones, increasing the levels of neurotransmitters in the brain, and helping keep the cardiovascular system How to take estrogen healthy. Estrogens relieve symptoms (e.g. -
Analysis of Natural and Synthetic Estrogens at Sub-PPT Levels In
Analysis of Natural and Synthetic Estrogens at Sub-PPT Levels in Surface Water and Crude Influent Water Utilizing the ACQUITY UPLC System with 2D LC Technology and Xevo TQ-S Euan Ross,1 Angela Boag,2 Hamish Todd,2 and Neil Gatward2 1Waters Corporation, France; 2Scottish Water, Organics Lab, Edinburgh GOAL This method has undergone a full validation and was To confirm and quantify the presence of natural found to meet the required performance criteria for and synthetic estrogens in surface and final effluent waters at sub ppt levels. this challenging analysis. BACKGROUND Estrogens are routinely used either as THE SOLUTION contraceptive medicines or in hormone Surface water samples were initially extracted utilizing an optimized method on replacement therapy and can enter aquatic an off-line Oasis® HLB Solid Phase Extraction (SPE) Cartridge. Crude influent environments via the discharge of final effluent and final effluent samples were first filtered, and then underwent the same waters. Estrogens are believed to have a Oasis HLB offline extraction step. This was followed by a second SPE step utilizing negative effect on aquatic environments by Sep-Pak® Silica Cartridges. These off-line SPE steps are critical to achieving lower disrupting the hormonal systems of fish. In limits of detection by providing the initial concentration step and cleaner extracts; the EU directive 2013/39/EU, 15 additional thus reducing ion suppression on the tandem quadrupole mass spectrometer. priority substances were added to the water framework directive (WFD, 2000/60/EC). In this latest update, 17α-ethinylestradiol and 17β-estradiol were not included in this list but 17 -ethinylestradiol, 1.2 ng/L instead added to a watch list in order to gather further data regarding the presence of these compounds in aquatic environments and the 17 -estradiol, 12 ng/L risks they pose. -
Feminizing Gender-Affirming Hormone Care the Michigan Medicine Approach
Feminizing Gender-Affirming Hormone Care The Michigan Medicine Approach Our goal is to partner with you to provide the medical care you need in affirming your gender. Our focus is on your lifelong health, safety, and individual medical and transition-related needs. The Michigan Medicine approach is based on the limited but growing medical evidence surrounding gender-affirming hormone care. Based on the available science, we believe mimicking normal physiology will provide you with the best balance of physical and emotional changes and long-term health. This philosophy aligns with current national and international medical guidelines in the care of gender diverse people. We are committed to staying up-to-date with the latest research and medical evidence to ensure you are getting the highest quality care. We know that there are competing approaches to gender-affirming care that are not based on validated scientific evidence. These approaches make scientifically unsubstantiated claims and have unknown short and long-term risks. We are happy to discuss these with you. Below are some answers to questions our patients have asked us about gender- affirming hormone care. We hope the Q&A will help you understand the medical evidence behind our approach to your gender-affirming hormone care, and how it may differ from other approaches, including the approach other well-known clinics in Southeast Michigan. Is there a benefit for monitoring both estrone (E1) and estradiol (E2) levels and aiming for a particular ratio? There are 3 naturally occurring human estrogens: estrone (E1), estradiol (E2), and estriol (E3). Your body naturally balances your estradiol and estrone ratio. -
Hormonal and Immunological Aspects of the Phylogeny of Sex Steroid
Proc. Nati. Acad. Sci. USA Vol. 77, No. 8, pp. 4578-4582, August 1980 Biochemistry Hormonal and immunological aspects of the phylogeny of sex steroid binding plasma protein (estradiol/dihydrotestosterone/a-fetoprotein) JACK-MICHEL RENOIR, CHRISTINE MERCIER-BODARD, AND ETIENNE-EMILE BAULIEU Unite de Recherches sur le Metabolisme Mol6culaire et la Physiopathologie des St6roides de l'Institut National de la Sante et de la Recherche MWdicale, (U 33), Universite Paris-Sud, DMpartement de Chimie Biologique, 78 rue du GUn6ral Leclerc, 94270 Bicetre, France Communicated by Seymour Lieberman, May 5,1980 ABSTRACT Sex steroid binding plasma protein (Sbp) in man acetate, 1:1 (vol/vol) for estradiol. Nonradioactive steroids were and in monkeys binds the androgens dihydrotestosterone and a gift of Roussel-Uclaf (Romainville) (guaranteed 99% testosterone and the estrogen estradiol with high affinity (Kd tO.5, 1, and 2 nM, respectively). Detailed studies of steroid pure). binding specificity give the same results in all primates, except Chemicals and Animals. Tubing [Visking-Nojax, 8/32 in. that in humans and chimpanzees estrone does not compete for (6.4 mm); from Union Carbide Corporation, New York] was dihydrotestosterone binding. In other mammals, Sbps of Arti- used in equilibrium dialyses. Agarose (Indubiose A 37) was odactyla and Lagomorpha have the same range of affinities for purchased from l'Industrie Biologique Francgaise (Paris), Ul- androgens but they do not bind estradiol to any significant ex- trogel AcA 34 was from LKB (Uppsala, Sweden), and Freund's tent (Kd >280 nM). The dog has an unusual Sbp (Kd for dihy- drotestosterone, 7.1 nM; for estiadiol, 125 nM), and rodents do complete and incomplete adjuvants were from Difco. -
Different Levels of Estradiol Are Correlated with Sexual Dysfunction in Adult
www.nature.com/scientificreports OPEN Diferent levels of estradiol are correlated with sexual dysfunction in adult men Tong Chen1,2,3,5, Fei Wu1,4,5, Xianlong Wang2, Gang Ma2, Xujun Xuan2, Rong Tang2, Sentai Ding1 & Jiaju Lu1,2* Ejaculatory dysfunction, including premature ejaculation (PE) and delayed ejaculation (DE), as well as erectile dysfunction (ED), constitute the majority of male sexual dysfunction. Despite a fair amount of data on the role of hormones and erection and ejaculation, it is inconclusive due to controversy in the current literature. To explore the correlation of male sexual dysfunction with hormonal profle, 1,076 men between the ages of 19–60 years (mean: 32.12 years) were included in this retrospective case–control study; 507 were categorized as ED, PE and DE groups. Five hundred and sixty-nine men without sexual dysfunction were enrolled in the control group. The background characteristics and clinical features of the four groups were collected and analyzed. The estradiol value was signifcantly elevated in the ED group than the control group (109.44 ± 47.14 pmol/L vs. 91.88 ± 27.68 pmol/L; P < 0.001). Conversely, the DE group had signifcantly lower level of estradiol than control did (70.76 ± 27.20 pmol/L vs. 91.88 ± 27.68 pmol/L; P < 0.001). The PE group had similar level of estradiol (91.73 ± 31.57 pmol/L vs. 91.88 ± 27.68 pmol/L; P = 0.960) but signifcantly higher level of testosterone (17.23 ± 5.72 nmol/L vs. 15.31 ± 4.31 nmol/L; P < 0.001) compared with the control group. -
Estriol Face Cream Handout
is used, most of the time it refers to Estradiol Hormone Health (E2), which is the highest concentration --80%-- during a woman's reproductive years (from & Skin Health puberty to pre-menopause). Estriol (E3) makes Dr. Randolph’s NEW up another 10% and Estrone (E1) makes up the last 10%. Estriol Face Cream Estriol (E3) is considered a "weak" estrogen which can be derived from plant sources. It does What is it? not need to be counterbalanced by progesterone, and does not have a systemic (widespread) effect Dr. Randolph's NEW prescription-only Estriol on the body. This makes estriol an ideal estrogen Face Cream consists of Estriol 0.3% , DMAE for topical use, since research suggests its 3%, and Hyaluronic Acid 0.5% mixed in a cream application remains in the skin, rather than in base. Dr. Randolph, along with Compounding the bloodstream. There is also evidence that Pharmacist Will McGalliard, developed this estriol, (sometimes called the "good estrogen") combination of ingredients to provide a may inhibit some of the unwanted effects of clinically-proven treatment that will boost estradiol by "binding" to estrogen receptors that collagen, reduce wrinkles, improve skin moisture typically promote cell proliferation. and elasticity. Who is it for? How does it work? For women or men who wish to improve the One of the many roles of estrogen in the body is appearance and health of their skin by boosting to increase the synthesis of collagen, which is the the development of underlying collagen skin's underlying support structure. Collagen structure, increasing elasticity and skin moisture, also promotes skin thickness and elasticity.