Estrogenic Compounds: Chemical Characteristics, Detection Methods, Biological and Environmental Effects

Total Page:16

File Type:pdf, Size:1020Kb

Estrogenic Compounds: Chemical Characteristics, Detection Methods, Biological and Environmental Effects See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/324686974 Estrogenic Compounds: Chemical Characteristics, Detection Methods, Biological and Environmental Effects Article in Water Air and Soil Pollution · May 2018 DOI: 10.1007/s11270-018-3796-z CITATION READS 1 232 4 authors: Maria Tereza Pamplona-Silva Dânia Elisa Christofoletti Mazzeo São Paulo State University São Paulo State University 7 PUBLICATIONS 7 CITATIONS 19 PUBLICATIONS 564 CITATIONS SEE PROFILE SEE PROFILE Jaqueline Bianchi Maria Aparecida Marin-Morales São Paulo State University 7 PUBLICATIONS 102 CITATIONS 116 PUBLICATIONS 2,808 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: AVALIAÇÃO DOS EFEITOS TÓXICOS E GENÉTICOS DE MICROCISTINAS SOB SISTEMAS TESTES ANIMAIS E VEGETAIS View project AVALIAÇÃO DOS EFEITOS TOXICOGENÉTICOS DE COMPOSTOS QUÍMICOS POLUIDORES DE RECURSOS HÍDRICOS, POR MEIO DE DIFERENTES BIOENSAIOS. View project All content following this page was uploaded by Maria Tereza Pamplona-Silva on 23 April 2018. The user has requested enhancement of the downloaded file. Water Air Soil Pollut (2018) 229:144 https://doi.org/10.1007/s11270-018-3796-z Estrogenic Compounds: Chemical Characteristics, Detection Methods, Biological and Environmental Effects Maria Tereza Pamplona-Silva & Dânia Elisa Christofoletti Mazzeo & Jaqueline Bianchi & Maria Aparecida Marin-Morales Received: 10 April 2017 /Accepted: 12 April 2018 # Springer International Publishing AG, part of Springer Nature 2018 Abstract Several chemical compounds are being stud- Keywords Endocrine disruptors . Environmental ied for their capacities to cause imbalances in several estrogenicity. Estrogen receptor. Estrogenic hormones . biological systems. Some of those are able to affect the Bioassay. Epigenetic endocrine system and are known as endocrine disruptors. Many negative effects can be induced in Abbreviations the organisms by the action of these chemicals, 17αEE2 17α-Ethinylestradiol highlighting the capacity to cause a decrease in the 17βE2 17β-Estradiol fertility rate, sex inversion, and problems in embryonic 4-CP 4-Cumylphenol development and even cancer in humans. Those con- APEO Alkylphenol ethoxylates taminants can be found in different environmental con- APS Alkylphenols ditions, in groundwater, sediments, residual waters, BBzP Butylbenzyl phthalate sludges, and even in drinking water. The purpose of this BCFs Bioconcentration Factors review is to provide a general overview of the main BPA Bisphenol A estrogenic endocrine disruptors and their effects on liv- DEHP Di(2-ethylhexyl) phthalate ing organisms, showing the most frequently used tools DEP Diethyl phthalate to detect these contaminants in environmental matrices. DES Diethylstilbestrol According to the data found, there is a need to develop DiBP Diisobutyl phthalate more studies and improve the techniques, in order to DiDP Diisodecyl phthalate effectively determine the mechanism of action of these DiNP Diisononyl phthalate contaminants and, thus, establish appropriate strategies DMP Dimethyl phthalate for their removal from the environment and reduce their DnBP Di-n-butyl phthalate actions on living beings. DOP Di-n-octhyl phthalate E1 Estrone : : : E3 Estriol M. T. Pamplona-Silva D. E. C. Mazzeo J. Bianchi ED Endocrine disruptor M. A. Marin-Morales (*) Department of Biology, Institute of Biosciences, UNESP - Univ EDsA Androgenic compounds Estadual Paulista, Av. 24-A, 1515, 13, Rio Claro, SP 506-900, EDsE Estrogenic endocrine disruptors Brazil EDsT Thyroidal compounds e-mail: [email protected] EEQ Estradiol equivalent D. E. C. Mazzeo EFSA European Food Safety Authority Department of Analytical Chemistry, Institute of Chemistry, ER Estrogen receptor UNESP - Univ Estadual Paulista, Araraquara, SP, Brazil ERBA Estrogen receptor binding assay 144 Page 2 of 27 Water Air Soil Pollut (2018) 229:144 GSI Gonadal somatic index hormones (17β-estradiol (17βE2), estrone (E1), and GSI Somatic index estriol (E3)), synthetic hormones (17α-ethinylestradiol HIS Hepatosomatic index (17αEE2), diethylstilbestrol (DES)), and LOAEL Lowest observed adverse effect level phytoestrogens (isoflavones and coumestrol). More- NMDRC Nonmonotonic dose-response curve over, other industrial compounds such as the bisphenol NP Nonylphenols A (BPA), dioxin (2,3,7,8-TCDD), nonylphenols (NP), NP1EO Nonylphenol-mono-ethoxylate octylphenols (OP), phthalates, styrenes, polybrominated NP2EO Ethoxylate biphenyls (PBB), and polychlorinated biphenyls (PCB) OP Octylphenols (Diamanti-Kandarakis et al. 2010), and metals such as PAHs Polycyclic aromatic hydrocarbons cadmium, lithium, barium, chromium, arsenic, and PBB Polybrominated biphenyls antimony are also inducers of alterations in the en- PCB Polychlorinated biphenyls docrine systems (Choe et al. 2003;Diamanti- PVC Polyvinyl chloride Kandarakis et al. 2010). SS Sewage sludge Trudeau and Tyler (2007) separated the EDs in three STP Sewage treatment plant different classes: androgenic compounds (EDsA), TCDD 2,3,7,8-Tetrachloridibenzo-p-dioxin which mimic or block natural testosterone; thyroidal TDI Tolerable daily intake compounds (EDsT), which cause direct and indirect VTG Vitellogenin effects on the thyroid gland; and estrogenic compounds WTPs Water treatment plants (EDsE), which mimic or block natural estrogen. WWTP Wastewater treatment plants Estrogenic compounds are those that possess similar YES Yeast estrogen screen properties to the hormone 17βE2 (main natural estrogen produced by the ovaries), the effects of which are in- duced by interactions with the estrogen receptor and cell systems (Schug et al. 2011). In addition, according to 1 Introduction Kiyama and Wada-Kiyama (2015), EDsE can act on two main pathways: the genomic path, linked to target The great variety of chemical compounds found in the gene transcription, and the nongenomic path, linked to environment may lead to many detrimental disorders in signaling of specific membrane receptors. These con- living organisms, due to the possibility of the interaction taminants are routinely present in the environment and of these compounds with cellular components. Some of can induce estrogenic effects, even at very low concen- them can also induce hormonal responses, similar to trations, causing reproductive and developmental disor- those produced naturally by organisms. ders, both in humans and wild animals (Jugan et al. Several natural and synthetic compounds, such 2009). Due to the relevance, diversity, and complexity as pharmaceutical drugs, pesticides, phytoestrogens, of adverse effects and chemical compounds related to complex mixtures derived from effluents, some in- estrogenic activity, only the EDsE will be discussed in dustrial wastes and several metals, can bind to this review. estrogen receptors (Hilscherova et al. 2000). When Thus, the present review intends to carry out a con- compounds interact with estrogen receptors, they cise approach regarding the main EDsE studied, de- can interfere on the synthesis, secretion, transport, scribing their known effects and mechanism of action. binding, action, or elimination of natural hormones, Additionally, the most frequently used bioassays to de- damaging the organic responses: blocking the ef- tect estrogenic activities in different environmental sam- fects of the hormones and promoting or inhibiting ples will be also highlighted. the endocrine system. The compounds that have these characteristics are called endocrine disruptors (EDs) (Rasier et al. 2006;USEPA2011). 2 Major Contributors to Estrogenic Activity Campbell et al. (2006) cite many natural and synthet- in Environmental Samples ic compounds that act as EDs, among them are agro- chemicals (atrazine, dieldrin, and toxaphene), surfac- Currently, many different chemicals have been recog- tants (alkylphenol ethoxylates (APEOs)), natural nized as potentially estrogenic; however, the EDsE may Water Air Soil Pollut (2018) 229:144 Page 3 of 27 144 not be grouped by their chemical similarity since they present estrogenic activities that result in several alter- present a high variety of chemical structures. According ations in the spermatogonia, spermatocytes, and sper- to Brzozowski et al. (1997), the presence of an aromatic matids, as well as inducing vitellogenin production in ring in the structure is the only requirement to act as an fishes (Bhatia et al. 2014). effective ligand and bind to the estrogenic receptor. APs are synthetic compounds constituted of antioxi- Classical examples of EDsE that are frequently found dants, modified polystyrene, surfactants, and PVC. Gen- in the environment, include natural and synthetic hor- erally, they are present in various effluents and are mones and chemicals as BPA, phthalates, alkylphenols constituted by different sized alkyl groups. The (APs), polycyclic aromatic hydrocarbons (PAHs), and estrogenicity of those substances is related to the reduc- agrochemicals. tion in the alkyl chain size; in other words, the smaller BPA belongs to groups derived from diphenylmethanol the chain, the greater the estrogenicity (Oliveira et al. and isophenol (Yang et al. 2015). In acid pH and high 2007; Servos 1999;USEPA2006, 2010; White et al. temperature, BPA results in a monomer that is used in 1994). The APs and their products, such as APEO, can the production of plastic and polycarbonates, which affect the reproduction of organisms that are exposed to serve to fabricate plastic bottles, CDs, and DVDs
Recommended publications
  • Cryptorchidism and Endocrine Disrupting Chemicals ⇑ Helena E
    Molecular and Cellular Endocrinology 355 (2012) 208–220 Contents lists available at SciVerse ScienceDirect Molecular and Cellular Endocrinology journal homepage: www.elsevier.com/locate/mce Review Cryptorchidism and endocrine disrupting chemicals ⇑ Helena E. Virtanen , Annika Adamsson Department of Physiology, University of Turku, Finland article info abstract Article history: Prospective clinical studies have suggested that the rate of congenital cryptorchidism has increased since Available online 25 November 2011 the 1950s. It has been hypothesized that this may be related to environmental factors. Testicular descent occurs in two phases controlled by Leydig cell-derived hormones insulin-like peptide 3 (INSL3) and tes- Keywords: tosterone. Disorders in fetal androgen production/action or suppression of Insl3 are mechanisms causing Cryptorchidism cryptorchidism in rodents. In humans, prenatal exposure to potent estrogen diethylstilbestrol (DES) has Testis been associated with increased risk of cryptorchidism. In addition, epidemiological studies have sug- Endocrine disrupting chemical gested that exposure to pesticides may also be associated with cryptorchidism. Some case–control stud- ies analyzing environmental chemical levels in maternal breast milk samples have reported associations between cryptorchidism and chemical levels. Furthermore, it has been suggested that exposure levels of some chemicals may be associated with infant reproductive hormone levels. Ó 2011 Elsevier Ireland Ltd. All rights reserved. Contents 1. Background.
    [Show full text]
  • Critical Role of Oxidative Stress in Estrogen-Induced Carcinogenesis
    Critical role of oxidative stress in estrogen-induced carcinogenesis Hari K. Bhat*†, Gloria Calaf‡, Tom K. Hei*‡, Theresa Loya§, and Jaydutt V. Vadgama¶ *Department of Environmental Health Sciences, Mailman School of Public Health, 60 Haven Avenue-B1, Columbia University, New York, NY 10032; ‡Center for Radiological Research, Columbia University, New York, NY 10032; and Departments of §Pathology and ¶Medicine, Charles Drew University, Los Angeles, CA 90059 Communicated by Donald C. Malins, Pacific Northwest Research Institute, Seattle, WA, December 27, 2002 (received for review August 22, 2002) Mechanisms of estrogen-induced tumorigenesis in the target quinones generates oxidative stress and potentially harmful free organ are not well understood. It has been suggested that oxida- radicals that are postulated to be required for the carcinogenic tive stress resulting from metabolic activation of carcinogenic process, and analogous to the metabolic activation of hydrocar- estrogens plays a critical role in estrogen-induced carcinogenesis. bons and other nonsteroidal estrogen carcinogens (9, 19–22). We We tested this hypothesis by using an estrogen-induced hamster have investigated the role of oxidative stress in estrogen carci- renal tumor model, a well established animal model of hormonal nogenesis by using a well established hamster renal tumor model carcinogenesis. Hamsters were implanted with 17␤-estradiol (␤E2), that shares several characteristics with human breast and uterine 17␣-estradiol (␣E2), 17␣-ethinylestradiol (␣EE), menadione, a com- cancers, pointing to a common mechanistic origin (6, 9, 23). bination of ␣E2 and ␣EE, or a combination of ␣EE and menadione Different estrogens used in the present study differ in their for 7 months.
    [Show full text]
  • UFC PROHIBITED LIST Effective June 1, 2021 the UFC PROHIBITED LIST
    UFC PROHIBITED LIST Effective June 1, 2021 THE UFC PROHIBITED LIST UFC PROHIBITED LIST Effective June 1, 2021 PART 1. Except as provided otherwise in PART 2 below, the UFC Prohibited List shall incorporate the most current Prohibited List published by WADA, as well as any WADA Technical Documents establishing decision limits or reporting levels, and, unless otherwise modified by the UFC Prohibited List or the UFC Anti-Doping Policy, Prohibited Substances, Prohibited Methods, Specified or Non-Specified Substances and Specified or Non-Specified Methods shall be as identified as such on the WADA Prohibited List or WADA Technical Documents. PART 2. Notwithstanding the WADA Prohibited List and any otherwise applicable WADA Technical Documents, the following modifications shall be in full force and effect: 1. Decision Concentration Levels. Adverse Analytical Findings reported at a concentration below the following Decision Concentration Levels shall be managed by USADA as Atypical Findings. • Cannabinoids: natural or synthetic delta-9-tetrahydrocannabinol (THC) or Cannabimimetics (e.g., “Spice,” JWH-018, JWH-073, HU-210): any level • Clomiphene: 0.1 ng/mL1 • Dehydrochloromethyltestosterone (DHCMT) long-term metabolite (M3): 0.1 ng/mL • Selective Androgen Receptor Modulators (SARMs): 0.1 ng/mL2 • GW-1516 (GW-501516) metabolites: 0.1 ng/mL • Epitrenbolone (Trenbolone metabolite): 0.2 ng/mL 2. SARMs/GW-1516: Adverse Analytical Findings reported at a concentration at or above the applicable Decision Concentration Level but under 1 ng/mL shall be managed by USADA as Specified Substances. 3. Higenamine: Higenamine shall be a Prohibited Substance under the UFC Anti-Doping Policy only In-Competition (and not Out-of- Competition).
    [Show full text]
  • Pp375-430-Annex 1.Qxd
    ANNEX 1 CHEMICAL AND PHYSICAL DATA ON COMPOUNDS USED IN COMBINED ESTROGEN–PROGESTOGEN CONTRACEPTIVES AND HORMONAL MENOPAUSAL THERAPY Annex 1 describes the chemical and physical data, technical products, trends in produc- tion by region and uses of estrogens and progestogens in combined estrogen–progestogen contraceptives and hormonal menopausal therapy. Estrogens and progestogens are listed separately in alphabetical order. Trade names for these compounds alone and in combination are given in Annexes 2–4. Sales are listed according to the regions designated by WHO. These are: Africa: Algeria, Angola, Benin, Botswana, Burkina Faso, Burundi, Cameroon, Cape Verde, Central African Republic, Chad, Comoros, Congo, Côte d'Ivoire, Democratic Republic of the Congo, Equatorial Guinea, Eritrea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Lesotho, Liberia, Madagascar, Malawi, Mali, Mauritania, Mauritius, Mozambique, Namibia, Niger, Nigeria, Rwanda, Sao Tome and Principe, Senegal, Seychelles, Sierra Leone, South Africa, Swaziland, Togo, Uganda, United Republic of Tanzania, Zambia and Zimbabwe America (North): Canada, Central America (Antigua and Barbuda, Bahamas, Barbados, Belize, Costa Rica, Cuba, Dominica, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Puerto Rico, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Suriname, Trinidad and Tobago), United States of America America (South): Argentina, Bolivia, Brazil, Chile, Colombia, Dominican Republic, Ecuador, Guyana, Paraguay,
    [Show full text]
  • Estrogen Actions Throughout the Brain
    Estrogen Actions Throughout the Brain BRUCE MCEWEN Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York, New York 10021 ABSTRACT Besides affecting the hypothalamus and other brain areas related to reproduction, ovarian steroids have widespread effects throughout the brain, on serotonin pathways, catecholaminergic neurons, and the basal forebrain cholinergic system as well as the hippocampal formation, a brain region involved in spatial and declarative memory. Thus, ovarian steroids have measurable effects on affective state as well as cognition, with implications for dementia. Two actions are discussed in this review; both appear to involve a combination of genomic and nongenomic actions of ovarian hormones. First, regulation of the serotonergic system appears to be linked to the presence of estrogen- and progestin-sensitive neurons in the midbrain raphe as well as possibly nongenomic actions in brain areas to which serotonin neurons project their axons. Second, ovarian hormones regulate synapse turnover in the CA1 region of the hippocampus during the 4- to 5-day estrous cycle of the female rat. Formation of new excitatory synapses is induced by estradiol and involves N-methyl-D-aspartate (NMDA) receptors, whereas downregulation of these synapses involves intracellular progestin receptors. A new, rapid method of radioimmunocytochemistry has made possible the demonstration of synapse formation by labeling and quantifying the specific synaptic and dendritic molecules involved. Although NMDA receptor activation is required for synapse formation, inhibitory interneurons may play a pivotal role as they express nuclear estrogen receptor-alpha (ER␣). It is also likely that estrogens may locally regulate events at the sites of synaptic contact in the excitatory pyramidal neurons where the synapses form.
    [Show full text]
  • Interactions of Putative Estrogens with the Intracellular Receptor Complex in Mouse Leydig Cells: Relationship to Preneoplastic Hyperplasia R
    [CANCER RESEARCH 48, 14-18, January 1, 1988) Interactions of Putative Estrogens with the Intracellular Receptor Complex in Mouse Leydig Cells: Relationship to Preneoplastic Hyperplasia R. Lloyd Juriansz,1 Robert A. Huseby, and R. Bruce Wilcox2 Department of Biochemistry, Loma Linda University, Loma Linda, California 92350 ABSTRACT (3), the initial spurt of DNA synthesis occurs independent of pituitary function (6). Actual tumor induction, however, results The interaction of 14 steroidal and nonsteroidal estrogen agonists and from action of unmetabolized estrogen directly upon the Leydig antagonists with the intracellular estrogen receptor system was examined cells (7). These cells in both a susceptible and a nonsusceptible in cell suspensions prepared from the testes of mice that develop malig strain of mouse contain an ER3 complex. The cells from the nant Leydig cell tumors after prolonged estrogen administration. The ability of these substances to stimulate DNA synthesis in short-term (3- two strains differ significantly in that nuclei from susceptible day) studies and to provoke Leydig cell hyperplasia with prolonged (3- animals bind more estrogen, and the proportion of the nuclear mo) administration was also measured. Our data were consistent with ER that remains fixed to the nuclear matrix in solutions of the proposal that, in Leydig cells, the carcinogenic effects of estrogens high salt concentration is greater in the tumor-susceptible ani are mediated through the intracellular receptor complex that results in a mals (8). Furthermore this fraction of the ER increases in localization of hormone bound to chromâtin and nuclear matrix. All tested compounds displaced 170-[3H]estradiol from the cytosolic amount per Leydig cell as estrogen treatment of susceptible mice continues over a 3-mo period and hyperplasia is initiated estrogen receptor, but to varying degrees; and there was no discernible (9).
    [Show full text]
  • Identification and Confirmation of the Environmental Risks of Emerging Pollutants in Surface Waters and Sediments
    Identification and confirmation of the environmental risks of emerging pollutants in surface waters and sediments Von der Fakultät für Mathematik, Informatik und Naturwissenschaften der RWTH Aachen University zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften genehmigte Dissertation Vorgelegt von Shangbo Zhou, Master of engineering aus Gansu, China Berichter: Univ.-Prof. Dr. rer. nat. Henner Hollert Univ.-Prof. Dr. rer. nat. Andreas Schäffer Tag der mündlichen Prüfung: 24.09.2019 Diese Dissertation ist auf den Internetseiten der Universitätsbibliothek online verfügbar. Your teacher can open the door but you must enter by yourself. – Chinese verb Abstract Although the occurrence, the fate and the toxicology of emerging pollutants in the aquatic environment have been widely studied, there is still a lack in the correlation of the levels of pollutants with the possible adverse effects in wildlife. The shortcomings of traditional methods for risk assessment have been observed, and the contributions of the identified compounds to the observed risks are rarely confirmed. Therefore, the main purpose of this thesis was to develop reasonable methods for risk identification of single compounds and mixtures, and to identify and confirm environmental risks caused by non-specific and mechanism-specific toxicity in aquatic systems. In this thesis, optimized methods for risk identification of single compounds and mixtures were developed. For screening-level risk assessment of single compounds, an optimized risk quotient that considers not only toxicological data but also the frequency with which the detected concentrations exceeded predicted no-effect concentrations was used to screen candidate priority pollutants in European surface waters. Results showed that 45 of the 477 analyzed compounds indicated potential risks for European surface waters.
    [Show full text]
  • (12) United States Patent (10) Patent No.: US 7,723,320 B2 Bunschoten Et Al
    US007723320B2 (12) United States Patent (10) Patent No.: US 7,723,320 B2 Bunschoten et al. (45) Date of Patent: May 25, 2010 (54) USE OF ESTROGEN COMPOUNDS TO DE 23,36434. A 4, 1975 INCREASE LIBDO IN WOMEN WO WO96 O3929 A 2, 1996 (75) Inventors: Evert Johannes Bunschoten, Heesch OTHER PUBLICATIONS (NL); Herman Jan Tijmen Coelingh Bennink, Driebergen (NL); Christian Holinka CF et al: “Comparison of Effects of Estetrol and Taxoxifen Franz Holinka, New York, NY (US) with Those of Estriol and Estradiol on the Immature Rat Uterus'; Biology of Reproduction; 1980; pp. 913-926; vol. 22, No. 4. (73) Assignee: Pantarhei Bioscience B.V., Al Zeist Holinka CF et al; "In-Vivo Effects of Estetrol on the Immature Rat (NL) Uterus'; Biology of Reproduction; 1979: pp. 242-246; vol. 20, No. 2. Albertazzi Paola et al.; "The Effect of Tibolone Versus Continuous Combined Norethisterone Acetate and Oestradiol on Memory, (*) Notice: Subject to any disclaimer, the term of this Libido and Mood of Postmenopausal Women: A pilot study': Data patent is extended or adjusted under 35 base Biosis "Online!; Oct. 31, 2000: pp. 223-229; vol. 36, No. 3; U.S.C. 154(b) by 1072 days. Biosciences Information Service.: Philadelphia, PA, US. Visser et al., “In vitro effects of estetrol on receptor binding, drug (21) Appl. No.: 10/478,264 targets and human liver cell metabolism.” Climacteric (2008) 11(1) Appx. II: 1-5. (22) PCT Filed: May 17, 2002 Visser et al., “First human exposure to exogenous single-dose oral estetrol in early postmenopausal women.” Climacteric (2008) 11(1): (86).
    [Show full text]
  • Prohibited List
    PROHIBITED LIST This List shall come into effect on 1 January 201X THE 201X PROHIBITED LIST Valid 1 January 201X In accordance with ARCI-011-015/ARCI-025-015 all substances in the categories below shall be strictly prohibited unless otherwise noted. Any reference to substances in this section does not alter the requirements for testing concentrations in race day samples. SUBSTANCES AND METHODS PROHIBITED AT ALL TIMES (IN- AND OUT-OF-COMPETITION) PROHIBITED SUBSTANCES Nothing in this list shall alter the requirements of post-race testing. S0. NON-APPROVED SUBSTANCES Any pharmacologic substance which is not addressed by any of the subsequent sections of the List and with no current approval by any governmental regulatory health authority for human or veterinary use (e.g., drugs under pre-clinical or clinical development, discontinued drugs, and designer drugs) is prohibited at all times. S00. THERAPEUTIC SUBSTANCES Therapeutic substances that are not otherwise prohibited pursuant to this list are permitted provided such substances: Have current approval for use in human, horse, or other animal by any governmental regulatory health authority in the jurisdiction where the horse is located S1. ANABOLIC AGENTS Anabolic agents are prohibited. 1. Anabolic Androgenic Steroids (AAS) 1.1. Exogenous* AAS, including: 1-androstenediol (5α-androst-1-ene-3β,17β-diol ); 1-androstenedione (5α- androst-1-ene-3,17-dione); bolandiol (estr-4-ene-3β,17β-diol ); bolasterone; boldenone; boldione (androsta-1,4-diene-3,17-dione); calusterone; clostebol; danazol
    [Show full text]
  • Effects of Diethylstilbestrol on the Proliferation and Tyrosinase Activity of Cultured Human Melanocytes
    BIOMEDICAL REPORTS 3: 499-502, 2015 Effects of diethylstilbestrol on the proliferation and tyrosinase activity of cultured human melanocytes JIANBING TANG, QIN LI, BIAO CHENG, CHONG HUANG and KUI CHEN Department of Plastic Surgery, The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, People's Liberation Army, HuaBo BioPharmaceutical Institute of Guangzhou, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China Received March 13, 2015; Accepted April 24, 2015 DOI: 10.3892/br.2015.472 Abstract. The aim of the present study was to observe the with estrogen. The pigmented spot becomes more severe and effects of different exogenous estrogen diethylstilbestrol (DES) malignant melanoma proceeds rapidly during an abnormal concentrations on the human melanocyte proliferation and menstruation or pregnancy. There are changes in the estrogen tyrosinase activity. Skin specimens were obtained following level in these physiological processes. Therefore, estrogen blepharoplasty, and the melanocytes were primary cultured is considered an important factor that affects pigmented and passaged to the third generation. The melanocytes were diseases (1). Diethylstilbestrol (DES) is a synthetic nonsteroidal seeded in 96-well plates, each well had 5x103 cells. The medium estrogen that can produce the same pharmacological effects as was changed after 24 h, and contained 10-4-10 -8 M DES. After natural estrogen (2). In order to explore the mechanism, the the melanocytes were incubated, the proliferation and tyrosi- excess skin following eyelid blepharoplasty was collected for nase activity were detected by the MTT assay and L-DOPA melanocyte culture and different DES concentrations were reaction. DES (10-8-10 -6 M) enhanced the proliferation of used to detect the effect on the proliferation and tyrosinase cultured melanocytes.
    [Show full text]
  • Estrogen, Cosmetics, and Labeling in Canadian Regulatory Practices, 1939–1953
    Potency and Power: Estrogen, Cosmetics, and Labeling in Canadian Regulatory Practices, 1939–1953 Lara Tessaro Kent Law School, University of Kent [email protected] Abstract Building on a rich body of feminist scholarship on estrogen, this account interrogates how potent estrogenic cosmetics and consumer product labels emerged together, through the regulatory practices of scientists and lawyers, in mid-century Canada. Composed from archival and other primary sources, the story traces the development of Canada’s first cosmetic regulations – which applied only to cosmetic products containing estrogens. In 1944, “sex hormones” had been the first substances for which the Department of National Health and Welfare adopted labels in lieu of dose or potency standards under the Food and Drugs Act. With dose-response thresholds thus written out of the Sex Hormone Regulations, in 1949, regulators devised a new type of consumer product label that warned women to use estrogenic cosmetic products “with care”. Further regulatory amendments in 1950 appeared, on their face, to require positive proof of safety for estrogenic cosmetics. However, through varied administrative and enforcement practices that hinged upon “directions for use” in product labels, National Health officials quietly reintroduced dose-response logics back into estrogen regulation. As legal technologies for disciplining women consumers to regulate their own exposures, product labels were becoming instrumental. With labeling, estrogen catalyzed an early example of risk regulation in Canada. Introduction Today, endocrine disruption is a well-established phenomenon. The fact that Tessaro, Lara. (2020). Potency and power: Estrogen, cosmetics, and labeling in Canadian regulatory practices, 1939–1953. Catalyst: Feminism, Theory, Technoscience, 6(1), page 1-43.
    [Show full text]
  • Endocrine Disruptors and Their Influence in the Origin of Breast Neoplasm and Other Breast Pathologies
    REVIEW ARTICLE DOI: 10.29289/2594539420180000294 ENDOCRINE DISRUPTORS AND THEIR INFLUENCE IN THE ORIGIN OF BREAST NEOPLASM AND OTHER BREAST PATHOLOGIES Disruptores endócrinos e o seu papel na gênese das neoplasias e de outras patologias das mamas Mauri José Piazza1*, Almir Antônio Urbanetz1, Cicero Urban2 ABSTRACT A higher occurrence of early breast cancer in women has created the need to identify possible etiologic agents characterized as direct co-responsible. The motivation for this review is the relevance of detecting potential endocrine disruptors responsible for harmful effects on breast tissue and, consequently, its damage. KEYWORDS: Breast; breast cancer; breast neoplasms. RESUMO Uma maior ocorrência no surgimento precoce das neoplasias das mamas em mulheres tem gerado a necessidade da descoberta dos possíveis agentes etiológicos caracterizados como corresponsáveis diretos. A relevância da detecção dos possíveis disruptores endócrinos responsáveis por exercer efeitos danosos nos tecidos mamários e, consequentemente, o seu comprometimento é a motivação da presente revisão. PALAVRAS-CHAVE: Mama; câncer de mama; neoplasias da mama. Study conducted at Universidade Federal do Paraná – Curitiba (PR), Brazil. 1Department of Obstetrics and Gynecology, Universidade Federal do Paraná – Curitiba (PR), Brazil. 2Universidade Positivo – Curitiba (PR), Brazil. *Corresponding author: [email protected] Conflict of interests: nothing to declare. Received on: 11/16/2017. Accepted on: 02/05/2018. Mastology, 2018;28(4):257-67 257 Piazza MJ, Urbanetz AA, Urban C INTRODUCTION 2. Phthalates (Figure 2): phthalates and phthalate esters are also In recent decades, a higher incidence of hormone-dependent neo- commonly used in the plastic and toys industries, in cosmet- plasms has been observed in body parts such as breasts, endo- ics, and in medical tubing manufacturing.
    [Show full text]