1
|
Saleh AC, Sabry R, Mastromonaco GF, Favetta LA. BPA and BPS affect the expression of anti-Mullerian hormone (AMH) and its receptor during bovine oocyte maturation and early embryo development. Reprod Biol Endocrinol 2021; 19:119. [PMID: 34344364 PMCID: PMC8330045 DOI: 10.1186/s12958-021-00773-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 05/28/2021] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Exposure to endocrine-disrupting chemicals, such as Bisphenol A (BPA) and Bisphenol S (BPS), is widespread and has negative implications on embryonic development. Preliminary evidence revealed that in women undergoing IVF treatment, urinary BPA levels were associated with low serum anti-Mullerian hormone, however a definitive relationship between the two has not yet been characterized. METHODS This study aimed to evaluate BPA and BPS effects on in vitro oocyte maturation and early preimplantation embryo development through i) analysis of anti-Mullerian hormone (AMH) and anti-Mullerian hormone receptor II (AMHRII), ii) investigation of developmental parameters, such as cleavage, blastocyst rates and developmental arrest, iii) detection of apoptosis and iv) assessment of possible sex ratio skew. An in vitro bovine model was used as a translational model for human early embryonic development. We first assessed AMH and AMHRII levels after bisphenol exposure during oocyte maturation. Zygotes were also analyzed during cleavage and blastocysts stages. Techniques used include in vitro fertilization, quantitative polymerase chain reaction (qPCR), western blotting, TUNEL and immunofluorescence. RESULTS Our findings show that BPA significantly decreased cleavage (p < 0.001), blastocyst (p < 0.005) and overall developmental rates as well as significantly increased embryonic arrest at the 2-4 cell stage (p < 0.05). Additionally, both BPA and BPS significantly increased DNA fragmentation in 2-4 cells, 8-16 cells and blastocyst embryos (p < 0.05). Furthermore, BPA and BPS alter AMH and AMHRII at the mRNA and protein level in both oocytes and blastocysts. BPA, but not BPS, also significantly skews sex ratios towards female blastocysts (p < 0.05). CONCLUSION This study shows that BPA affects AMH and AMHRII expression during oocyte maturation and that BPS exerts its effects to a greater extent after fertilization and therefore may not be a safer alternative to BPA. Our data lay the foundation for future functional studies, such as receptor kinetics, downstream effectors, and promoter activation/inhibition to prove a functional relationship between bisphenols and the AMH signalling system.
Collapse
Affiliation(s)
- Angela Christina Saleh
- grid.34429.380000 0004 1936 8198Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario Canada
| | - Reem Sabry
- grid.34429.380000 0004 1936 8198Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario Canada
| | - Gabriela Fabiana Mastromonaco
- grid.34429.380000 0004 1936 8198Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario Canada
- grid.507770.20000 0001 0698 6008Reproductive Physiology, Toronto Zoo, Scarborough, Ontario Canada
| | - Laura Alessandra Favetta
- grid.34429.380000 0004 1936 8198Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario Canada
| |
Collapse
|
2
|
Joint effects of ambient air pollution and maternal smoking on neonatal adiposity and childhood BMI trajectories in the Healthy Start study. Environ Epidemiol 2021; 5:e142. [PMID: 34131612 PMCID: PMC8196098 DOI: 10.1097/ee9.0000000000000142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/12/2021] [Indexed: 12/14/2022] Open
Abstract
Coexposure to air pollution and tobacco smoke may influence early-life growth, but few studies have investigated their joint effects. We examined the interaction between fetal exposure to maternal smoking and ozone (O3) or fine particulate matter (PM2.5) on birth weight, neonatal adiposity, and body mass index (BMI) trajectories through age 3 years. Methods Participants were 526 mother-child pairs, born ≥37 weeks. Cotinine was measured at ~27 weeks gestation. Whole pregnancy and trimester-specific O3 and PM2.5 were estimated via. inverse-distance weighted interpolation from stationary monitors. Neonatal adiposity (fat mass percentage) was measured via. air displacement plethysmography. Child weight and length/height were abstracted from medical records. Interaction was assessed by introducing cotinine (<31.5 vs. ≥31.5 ng/mL [indicating active smoking]), O3/PM2.5 (low [tertiles 1-2] vs. high [tertile 3]), and their product term in linear regression models for birth weight and neonatal adiposity and mixed-effects models for BMI trajectories. Results The rate of BMI growth among offspring jointly exposed to maternal smoking and high PM2.5 (between 8.1 and 12.7 μg/m3) in the third trimester was more rapid than would be expected due to the individual exposures alone (0.8 kg/m2 per square root year; 95% CI = 0.1, 1.5; P for interaction = 0.03). We did not detect interactions between maternal smoking and O3 or PM2.5 at any other time on birth weight, neonatal adiposity, or BMI trajectories. Conclusions Although PM2.5 was generally below the EPA annual air quality standards of 12.0 μg/m3, exposure during the third trimester may influence BMI trajectories when combined with maternal smoking.
Collapse
|
3
|
Zhu L, Yuan C, Wang M, Liu Y, Wang Z, Seif MM. Bisphenol A-associated alterations in DNA and histone methylation affects semen quality in rare minnow Gobiocypris rarus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 226:105580. [PMID: 32712368 DOI: 10.1016/j.aquatox.2020.105580] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 07/04/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
Bisphenol A (BPA), a well-known estrogenic endocrine disruptor, is ubiquitously present in the environment, possessing the potential to interfere with the reproductive endocrine system in male mammals. However, there are limited studies on the reproductive toxicity in male aquatic animals associated with epigenetic modifications. In order to evaluate the potential effects of BPA on reproduction and better understand the underlying mechanism, adult male rare minnow (Gobiocypris rarus) were exposed to 15 μg L-1 BPA over a period of 63 d. Results showed that BPA induced congestion of blood vessels and infiltration of inflammatory cells after 21 d exposure, and decreased sperm fertilization after 63 d exposure. The genome DNA methylation levels were significantly increased throughout the treatment, and a strong positive stain were found in the spermatocyte, spermatid and sperm. The H3K4me3 level in all types of germ cell were increased by 21 d exposure while decreased following 63 d exposure. The positive stain of H3K9me3 was decreased in sperms while increased in spermatids by 21 d exposure. In addition, the H3K9me3 level was significantly increased after 63 d exposure, and a strong positive stain were found in spermatocytes, spermatids, and sperms. Our result also revealed that the transcripts of DNA methyltransferase genes (dnmt1 and dnmt3-8) and histone methyltransferase genes (mll2-5, setdb1-2 and ezh2) were also markedly changed under BPA exposure for 21-63 d. These findings indicated that BPA had toxicity in male reproductive, and DNA/histone methylation might play a vital role in the regulation of BPA-triggered the decreased of sperm quality.
Collapse
Affiliation(s)
- Long Zhu
- College of Animal Science and Technology, Northwest A&F University, Yang Ling, Shaanxi, 712100, China
| | - Cong Yuan
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Mingrong Wang
- College of Animal Science and Technology, Northwest A&F University, Yang Ling, Shaanxi, 712100, China
| | - Yan Liu
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Yang Ling, Shaanxi, 712100, China.
| | - Mohamed M Seif
- College of Animal Science and Technology, Northwest A&F University, Yang Ling, Shaanxi, 712100, China; Toxicology and Food Contaminants Department, National Research Centre, Cairo 11435, Egypt
| |
Collapse
|
4
|
Sharma RP, Kumar V, Schuhmacher M, Kolodkin A, Westerhoff HV. Development and evaluation of a harmonized whole body physiologically based pharmacokinetic (PBPK) model for flutamide in rats and its extrapolation to humans. ENVIRONMENTAL RESEARCH 2020; 182:108948. [PMID: 31841869 DOI: 10.1016/j.envres.2019.108948] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 10/25/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
By their definition, inadvertent exposure to endocrine disrupting compounds (EDCs) intervenes with the endocrine signalling system, even at low dose. On the one hand, some EDCs are used as important pharmaceutical drugs that one would not want to dismiss. On the other hand, these pharmaceutical drugs are having off-target effects and increasingly significant exposure to the general population with unwanted health implications. Flutamide, one of the top pharmaceutical products marketed all over the world for the treatment of prostate cancer, is also a pollutant. Its therapeutic action mainly depends on targeting the androgen receptors and inhibiting the androgen action that is essential for growth and survival of prostate tissue. Currently flutamide is of concern with respect to its categorization as an endocrine disruptor. In this work we have developed a physiologically based pharmacokinetic (PBPK) model of flutamide that could serve as a standard tool for its human risk assessment. First we built the model for rat (where many parameters have been measured). The rat PBPK model was extrapolated to human where the re-parameterization involved human-specific physiology, metabolic kinetics derived from in-vitro studies, and the partition coefficient same as the rat model. We have harmonized the model by integrating different sets of in-vitro, in-vivo and physiological data into a PBPK model. Then the model was used to simulate different exposure scenarios and the results were compared against the observed data. Both uncertainty and sensitivity analysis was done. Since this new whole-body PBPK model can predict flutamide concentrations not only in plasma but also in various organs, the model may have clinical applications in efficacy and safety assessment of flutamide. The model can also be used for reverse dosimetry in the context of interpreting the available biomonitoring data to estimate the degree to which the population is currently being exposed, and a tool for the pharmaceutical companies to validate the estimated Permitted Daily Exposure (PDE) for flutamide.
Collapse
Affiliation(s)
- Raju Prasad Sharma
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain; Molecular Cell Physiology, VU University Amsterdam, the Netherlands; Infrastructure for Systems Biology Europe (ISBE), Europe
| | - Vikas Kumar
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain.
| | - Marta Schuhmacher
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain
| | - Alexey Kolodkin
- Molecular Cell Physiology, VU University Amsterdam, the Netherlands; Infrastructure for Systems Biology Europe (ISBE), Europe; Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg
| | - Hans V Westerhoff
- Molecular Cell Physiology, VU University Amsterdam, the Netherlands; Infrastructure for Systems Biology Europe (ISBE), Europe; Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, the Netherlands; Manchester Centre for Integrative Systems Biology, UK.
| |
Collapse
|
5
|
Plunk EC, Richards SM. Epigenetic Modifications due to Environment, Ageing, Nutrition, and Endocrine Disrupting Chemicals and Their Effects on the Endocrine System. Int J Endocrinol 2020; 2020:9251980. [PMID: 32774366 PMCID: PMC7391083 DOI: 10.1155/2020/9251980] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 06/18/2020] [Indexed: 01/17/2023] Open
Abstract
The epigenome of an individual can be altered by endogenous hormones, environment, age, diet, and exposure to endocrine disrupting chemicals (EDCs), and the effects of these modifications can be seen across generations. Epigenetic modifications to the genome can alter the phenotype of the individual without altering the DNA sequence itself. Epigenetic modifications include DNA methylation, histone modification, and aberrant microRNA (miRNA) expression; they begin during germ cell development and embryogenesis and continue until death. Hormone modulation occurs during the ageing process due to epigenetic modifications. Maternal overnutrition or undernutrition can affect the epigenome of the fetus, and the effects can be seen throughout life. Furthermore, maternal care during the childhood of the offspring can lead to different phenotypes seen in adulthood. Diseases controlled by the endocrine system, such as obesity and diabetes, as well as infertility in females can be associated with epigenetic changes. Not only can these phenotypes be seen in F1, but also some chemical effects can be passed through the germline and have effects transgenerationally, and the phenotypes are seen in F3. The following literature review expands upon these topics and discusses the state of the science related to epigenetic effects of age, diet, and EDCs on the endocrine system.
Collapse
Affiliation(s)
- Elizabeth C. Plunk
- Department of Biological and Environmental Sciences, University of Tennessee, Chattanooga, TN 37403, USA
| | - Sean M. Richards
- Department of Biological and Environmental Sciences, University of Tennessee, Chattanooga, TN 37403, USA
| |
Collapse
|
6
|
Bastain TM, Chavez T, Habre R, Girguis MS, Grubbs B, Toledo-Corral C, Amadeus M, Farzan SF, Al-Marayati L, Lerner D, Noya D, Quimby A, Twogood S, Wilson M, Chatzi L, Cousineau M, Berhane K, Eckel SP, Lurmann F, Johnston J, Dunton GF, Gilliland F, Breton C. Study Design, Protocol and Profile of the Maternal And Developmental Risks from Environmental and Social Stressors (MADRES) Pregnancy Cohort: a Prospective Cohort Study in Predominantly Low-Income Hispanic Women in Urban Los Angeles. BMC Pregnancy Childbirth 2019; 19:189. [PMID: 31146718 PMCID: PMC6543670 DOI: 10.1186/s12884-019-2330-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 05/03/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The burden of childhood and adult obesity disproportionally affects Hispanic and African-American populations in the US, and these groups as well as populations with lower income and education levels are disproportionately affected by environmental pollution. Pregnancy is a critical developmental period where maternal exposures may have significant impacts on infant and childhood growth as well as the future health of the mother. We initiated the "Maternal And Developmental Risks from Environmental and Social Stressors (MADRES)" cohort study to address critical gaps in understanding the increased risk for childhood obesity and maternal obesity outcomes among minority and low-income women in urban Los Angeles. METHODS The MADRES cohort is specifically examining whether pre- and postpartum environmental exposures, in addition to exposures to psychosocial and built environment stressors, lead to excessive gestational weight gain and postpartum weight retention in women and to perturbed infant growth trajectories and increased childhood obesity risk through altered psychological, behavioral and/or metabolic responses. The ongoing MADRES study is a prospective pregnancy cohort of 1000 predominantly lower-income, Hispanic women in Los Angeles, CA. Enrollment in the MADRES cohort is initiated prior to 30 weeks gestation from partner community health clinics in Los Angeles. Cohort participants are followed through their pregnancies, at birth, and during the infant's first year of life through a series of in-person visits with interviewer-administered questionnaires, anthropometric measurements and biospecimen collection as well as telephone interviews conducted with the mother. DISCUSSION In this paper, we outline the study rationale and data collection protocol for the MADRES cohort, and we present a profile of demographic, health and exposure characteristics for 291 participants who have delivered their infants, out of 523 participants enrolled in the study from November 2015 to October 2018 from four community health clinics in Los Angeles. Results from the MADRES cohort could provide a powerful rationale for regulation of targeted chemical environmental components, better transportation and urban design policies, and clinical recommendations for stress-coping strategies and behavior to reduce lifelong obesity risk.
Collapse
Affiliation(s)
- Theresa M Bastain
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA.
| | - Thomas Chavez
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Rima Habre
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Mariam S Girguis
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Brendan Grubbs
- Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA
| | - Claudia Toledo-Corral
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA.,Department of Public Health, California State University Northridge, Los Angeles, CA, USA
| | - Milena Amadeus
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Shohreh F Farzan
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Laila Al-Marayati
- Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA.,Eisner Health, Los Angeles, CA, USA
| | | | - David Noya
- South Central Family Health Center, Los Angeles, CA, USA
| | - Alyssa Quimby
- Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA
| | - Sara Twogood
- Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA
| | - Melissa Wilson
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Leda Chatzi
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Michael Cousineau
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Kiros Berhane
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Sandrah P Eckel
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | | | - Jill Johnston
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Genevieve F Dunton
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA.,Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Frank Gilliland
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| | - Carrie Breton
- Department of Preventive Medicine, USC Keck School of Medicine, University of Southern California, 2001 N. Soto Street, M/C 9237, Los Angeles, CA, 90032, USA
| |
Collapse
|
7
|
Assens M, Frederiksen H, Petersen JH, Larsen T, Skakkebæk NE, Juul A, Andersson AM, Main KM. Variations in repeated serum concentrations of UV filters, phthalates, phenols and parabens during pregnancy. ENVIRONMENT INTERNATIONAL 2019; 123:318-324. [PMID: 30557811 DOI: 10.1016/j.envint.2018.11.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 05/26/2023]
Abstract
BACKGROUND Biobank serum samples from longitudinal mother-child cohorts have been used to estimate prenatal exposures to endocrine disrupting chemicals (EDCs). However, the knowledge about variations in serum concentrations of non-persistent chemicals during pregnancy is limited. OBJECTIVE To describe the within- and between-person variations in serum concentrations of non-persistent chemicals and changes over trimesters, including phthalate metabolites, parabens, phenols, and UV filters. DESIGN Longitudinal study with repeated blood samples from 128 healthy pregnant women during pregnancy. SETTING Population based study at a University Hospital in Copenhagen 1999-2001. METHODS 503 repetitive prenatal serum samples from 128 pregnant women taken at approximately gestational week 12, 20, 30 and 40 were analyzed for 7 UV filters, 32 metabolites of 15 phthalate diesters, 8 phenols and 7 parabens by LC-MS/MS. RESULTS Ten of 32 phthalate metabolites from six out of 15 phthalate diesters, two of seven parabens, two of eight phenols and three of seven UV filters were measurable in more than half of the serum samples. Of these chemicals, mono‑ethyl phthalate (MEP), mono‑iso‑nonyl phthalate (MiNP), mono‑iso‑decyl phthalate (MiDP), 4‑methylbenzophenone (4‑MBP), 4‑hydroxybenzoephenone (4‑HBP) and n‑propyl paraben (nPrP) had intra-class correlation coefficients (ICC) above 0.4 in both adjusted and unadjusted analyses (0.427-0.795), indicating low within-person variation. The serum concentration of UV filters 4‑MBP and 4‑HBP significantly increased throughout pregnancy, also after adjusting for seasonal variation (4‑HBP: effect estimates 0.142-0.437, p < 0.001. 4‑MBP: effect estimates 0.156-0.458, p < 0.002.). CONCLUSION MEP, MiNP, MiDP, 4‑MBP, 4‑HBP and nPrP were measurable in >50% of serum samples and showed low within-person variation. Thus, it is possible with acceptable accuracy to evaluate maternal exposure during pregnancy for these non-persistent chemicals using one or more biobank serum samples. The here presented adjusted ICC values can in addition be applied as adjustment of residual variation in future studies that evaluate outcomes related to prenatal exposures.
Collapse
Affiliation(s)
- Maria Assens
- Department of Growth and Reproduction and EDMaRC, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark.
| | - Hanne Frederiksen
- Department of Growth and Reproduction and EDMaRC, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Jørgen Holm Petersen
- Department of Growth and Reproduction and EDMaRC, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark; Section for Biostatistics, Department of Public Health, University of Copenhagen, Oester Farimagsgade 5, 1014 Copenhagen, Denmark
| | - Torben Larsen
- Department of Obstetrics and Gynecology, Holbaek Hospital, University of Copenhagen, Smedelundsgade 60, 4300 Holbaek, Denmark
| | - Niels E Skakkebæk
- Department of Growth and Reproduction and EDMaRC, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Anders Juul
- Department of Growth and Reproduction and EDMaRC, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Anna-Maria Andersson
- Department of Growth and Reproduction and EDMaRC, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Katharina M Main
- Department of Growth and Reproduction and EDMaRC, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark
| |
Collapse
|
8
|
Beck KR, Kaserer T, Schuster D, Odermatt A. Virtual screening applications in short-chain dehydrogenase/reductase research. J Steroid Biochem Mol Biol 2017; 171:157-177. [PMID: 28286207 PMCID: PMC6831487 DOI: 10.1016/j.jsbmb.2017.03.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/06/2017] [Accepted: 03/08/2017] [Indexed: 02/06/2023]
Abstract
Several members of the short-chain dehydrogenase/reductase (SDR) enzyme family play fundamental roles in adrenal and gonadal steroidogenesis as well as in the metabolism of steroids, oxysterols, bile acids, and retinoids in peripheral tissues, thereby controlling the local activation of their cognate receptors. Some of these SDRs are considered as promising therapeutic targets, for example to treat estrogen-/androgen-dependent and corticosteroid-related diseases, whereas others are considered as anti-targets as their inhibition may lead to disturbances of endocrine functions, thereby contributing to the development and progression of diseases. Nevertheless, the physiological functions of about half of all SDR members are still unknown. In this respect, in silico tools are highly valuable in drug discovery for lead molecule identification, in toxicology screenings to facilitate the identification of hazardous chemicals, and in fundamental research for substrate identification and enzyme characterization. Regarding SDRs, computational methods have been employed for a variety of applications including drug discovery, enzyme characterization and substrate identification, as well as identification of potential endocrine disrupting chemicals (EDC). This review provides an overview of the efforts undertaken in the field of virtual screening supported identification of bioactive molecules in SDR research. In addition, it presents an outlook and addresses the opportunities and limitations of computational modeling and in vitro validation methods.
Collapse
Affiliation(s)
- Katharina R Beck
- Swiss Center for Applied Human Toxicology and Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Teresa Kaserer
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), Computer Aided Molecular Design Group, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Daniela Schuster
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), Computer Aided Molecular Design Group, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria.
| | - Alex Odermatt
- Swiss Center for Applied Human Toxicology and Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland.
| |
Collapse
|
9
|
McConnell R, Gilliland F, Goran M, Allayee H, Hricko A, Mittelman S. Does near-roadway air pollution contribute to childhood obesity? Pediatr Obes 2016; 11:1-3. [PMID: 25820202 PMCID: PMC4821543 DOI: 10.1111/ijpo.12016] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 01/13/2015] [Indexed: 12/11/2022]
Abstract
Exposure to man-made combustion products, including secondhand tobacco smoke, maternal smoking during pregnancy, and near-roadway air pollution (NRAP), have been associated with increased body mass index and obesity in children and have been shown to result in excess weight gain in animal models. Potential mechanisms include pro-inflammatory central nervous system effects of airborne particles on appetite control, resulting in increased caloric intake, or changes in basal metabolism due to effects on mitochondria and brown adipose tissue. Combustion-derived polyaromatic hydrocarbons have also been linked to altered lipid metabolism, epigenetic effects on PPARγ expression, particle-induced estrogenic effects, and alterations in the distribution of visceral fat. Emerging evidence that a broad spectrum of environmental chemicals have “obesogenic” properties and alter the metabolic profile of adipose tissue challenges the prevailing model that the childhood obesity epidemic is explained solely by increased caloric density of food and decreased physical activity. Research on environmental obesogens could identify novel targets for intervention and yield public health benefits, since NRAP and SHS exposure are both common in populations most at-risk for development of obesity.
Collapse
Affiliation(s)
- Rob McConnell
- Division of Environmental Health, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA,Southern California Environmental Health Center, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA
| | - Frank Gilliland
- Division of Environmental Health, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA,Southern California Environmental Health Center, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA
| | - Michael Goran
- Southern California Environmental Health Center, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA,Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA
| | - Hooman Allayee
- Southern California Environmental Health Center, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA,Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA
| | - Andrea Hricko
- Southern California Environmental Health Center, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA,Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA
| | - Steven Mittelman
- Southern California Environmental Health Center, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA,Department of Pediatrics, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA 90089, USA,The Saban Research Institute, Children’s Hospital Los Angeles, 4650 Sunset Blvd, Los Angeles, CA 90027, USA
| |
Collapse
|
10
|
Pharmacophore Models and Pharmacophore-Based Virtual Screening: Concepts and Applications Exemplified on Hydroxysteroid Dehydrogenases. Molecules 2015; 20:22799-832. [PMID: 26703541 PMCID: PMC6332202 DOI: 10.3390/molecules201219880] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 12/03/2015] [Accepted: 12/09/2015] [Indexed: 01/06/2023] Open
Abstract
Computational methods are well-established tools in the drug discovery process and can be employed for a variety of tasks. Common applications include lead identification and scaffold hopping, as well as lead optimization by structure-activity relationship analysis and selectivity profiling. In addition, compound-target interactions associated with potentially harmful effects can be identified and investigated. This review focuses on pharmacophore-based virtual screening campaigns specifically addressing the target class of hydroxysteroid dehydrogenases. Many members of this enzyme family are associated with specific pathological conditions, and pharmacological modulation of their activity may represent promising therapeutic strategies. On the other hand, unintended interference with their biological functions, e.g., upon inhibition by xenobiotics, can disrupt steroid hormone-mediated effects, thereby contributing to the development and progression of major diseases. Besides a general introduction to pharmacophore modeling and pharmacophore-based virtual screening, exemplary case studies from the field of short-chain dehydrogenase/reductase (SDR) research are presented. These success stories highlight the suitability of pharmacophore modeling for the various application fields and suggest its application also in futures studies.
Collapse
|
11
|
Liu Y, Peterson KE. Maternal Exposure to Synthetic Chemicals and Obesity in the Offspring: Recent Findings. Curr Environ Health Rep 2015; 2:339-47. [PMID: 26403844 PMCID: PMC5482496 DOI: 10.1007/s40572-015-0068-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Experimental studies suggest perinatal exposures to synthetic chemicals may be associated with early onset obesity, although this hypothesis has not been extensively examined in humans. This article summarizes the evidence relating maternal perinatal exposure to common persistent organic compounds (polychlorinated biphenyl, dichlorodiphenyldichloroethylene, dichlorodiphenyltrichloroethane, hexachlorobenzene, hexachlorocyclohexane), perfluoroalkyls, perfluorooctane sulfonate, polybrominated diphenyl ethers and tributyltin, and nonpersistent compounds (phthalates, bisphenol A) on child obesity during sensitive developmental periods. Twenty-two epidemiologic studies published from 2011 to 2015 offer inconsistent support for the obesogenic effects of most substances and are limited by relatively small sample sizes and indirect measures of adiposity. The clearest findings suggest an influence of maternal dichlorodiphenyldichloroethylene exposure on offspring overweight and obesity. Recommendations for future epidemiological research include longer follow-up of effects of pre- and postnatal exposures in large samples; utilization of direct measures of adiposity; and consideration of effect modification by sex, birth weight, dietary fat, and maternal weight status.
Collapse
Affiliation(s)
- Yun Liu
- Department of Nutritional Sciences, University of Michigan School of Public Health, 1415 Washington Heights, 1-1867, Ann Arbor, MI, 48109-2029, USA.
| | - Karen E Peterson
- Department of Nutritional Sciences, University of Michigan School of Public Health, 1415 Washington Heights, 1-1867, Ann Arbor, MI, 48109-2029, USA.
- Center for Human Growth and Development, University of Michigan, Ann Arbor, MI, USA.
- Departments of Nutrition and of Health and Social Behavior, Harvard W.T. Chan School of Public Health, Boston, MA, USA.
| |
Collapse
|
12
|
McConnell R, Shen E, Gilliland FD, Jerrett M, Wolch J, Chang CC, Lurmann F, Berhane K. A longitudinal cohort study of body mass index and childhood exposure to secondhand tobacco smoke and air pollution: the Southern California Children's Health Study. ENVIRONMENTAL HEALTH PERSPECTIVES 2015; 123:360-6. [PMID: 25389275 PMCID: PMC4384197 DOI: 10.1289/ehp.1307031] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 11/04/2014] [Indexed: 05/21/2023]
Abstract
BACKGROUND Childhood body mass index (BMI) and obesity prevalence have been associated with exposure to secondhand smoke (SHS), maternal smoking during pregnancy, and vehicular air pollution. There has been little previous study of joint BMI effects of air pollution and tobacco smoke exposure. METHODS Information on exposure to SHS and maternal smoking during pregnancy was collected on 3,318 participants at enrollment into the Southern California Children's Health Study. At study entry at average age of 10 years, residential near-roadway pollution exposure (NRP) was estimated based on a line source dispersion model accounting for traffic volume, proximity, and meteorology. Lifetime exposure to tobacco smoke was assessed by parent questionnaire. Associations with subsequent BMI growth trajectory based on annual measurements and attained BMI at 18 years of age were assessed using a multilevel modeling strategy. RESULTS Maternal smoking during pregnancy was associated with estimated BMI growth over 8-year follow-up (0.72 kg/m2 higher; 95% CI: 0.14, 1.31) and attained BMI (1.14 kg/m2 higher; 95% CI: 0.66, 1.62). SHS exposure before enrollment was positively associated with BMI growth (0.81 kg/m2 higher; 95% CI: 0.36, 1.27) and attained BMI (1.23 kg/m2 higher; 95% CI: 0.86, 1.61). Growth and attained BMI increased with more smokers in the home. Compared with children without a history of SHS and NRP below the median, attained BMI was 0.80 kg/m2 higher (95% CI: 0.27, 1.32) with exposure to high NRP without SHS; 0.85 kg/m2 higher (95% CI: 0.43, 1.28) with low NRP and a history of SHS; and 2.15 kg/m2 higher (95% CI: 1.52, 2.77) with high NRP and a history of SHS (interaction p-value 0.007). These results suggest a synergistic effect. CONCLUSIONS Our findings strengthen emerging evidence that exposure to tobacco smoke and NRP contribute to development of childhood obesity and suggest that combined exposures may have synergistic effects.
Collapse
Affiliation(s)
- Rob McConnell
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Kobayashi T, Kumakura M, Yoshie S, Sugishima T, Horie Y. Dynamics of testis-ova in a wild population of Japanese pond frogs,Rana nigromaculata. ACTA ACUST UNITED AC 2014; 323:74-9. [DOI: 10.1002/jez.1898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 09/03/2014] [Accepted: 09/06/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Tohru Kobayashi
- Laboratory of Molecular Reproductive Biology; Institute for Environmental Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
- Laboratory of Molecular Reproductive Biology; Graduate School of Integrated Pharmaceutical and Nutritional Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
| | - Masahiko Kumakura
- Department of Histology, School of Life Dentistry at Niigata; The Nippon Dental University; Chuo-ku Niigata Japan
| | - Sumio Yoshie
- Department of Histology, School of Life Dentistry at Niigata; The Nippon Dental University; Chuo-ku Niigata Japan
| | - Tomomi Sugishima
- Laboratory of Molecular Reproductive Biology; Institute for Environmental Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
| | - Yoshifumi Horie
- Laboratory of Molecular Reproductive Biology; Institute for Environmental Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
- Laboratory of Molecular Reproductive Biology; Graduate School of Integrated Pharmaceutical and Nutritional Sciences; University of Shizuoka; Suruga-ku Shizuoka Japan
| |
Collapse
|
14
|
Couée I, Serra AA, Ramel F, Gouesbet G, Sulmon C. Physiology and toxicology of hormone-disrupting chemicals in higher plants. PLANT CELL REPORTS 2013; 32:933-41. [PMID: 23553555 DOI: 10.1007/s00299-013-1428-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 03/15/2013] [Accepted: 03/19/2013] [Indexed: 05/13/2023]
Abstract
Higher plants are exposed to natural environmental organic chemicals, associated with plant-environment interactions, and xenobiotic environmental organic chemicals, associated with anthropogenic activities. The effects of these chemicals result not only from interaction with metabolic targets, but also from interaction with the complex regulatory networks of hormone signaling. Purpose-designed plant hormone analogues thus show extensive signaling effects on gene regulation and are as such important for understanding plant hormone mechanisms and for manipulating plant growth and development. Some natural environmental chemicals also act on plants through interference with the perception and transduction of endogenous hormone signals. In a number of cases, bioactive xenobiotics, including herbicides that have been designed to affect specific metabolic targets, show extensive gene regulation effects, which are more in accordance with signaling effects than with consequences of metabolic effects. Some of these effects could be due to structural analogies with plant hormones or to interference with hormone metabolism, thus resulting in situations of hormone disruption similar to animal cell endocrine disruption by xenobiotics. These hormone-disrupting effects can be superimposed on parallel metabolic effects, thus indicating that toxicological characterisation of xenobiotics must take into consideration the whole range of signaling and metabolic effects. Hormone-disruptive signaling effects probably predominate when xenobiotic concentrations are low, as occurs in situations of residual low-level pollutions. These hormone-disruptive effects in plants may thus be of importance for understanding cryptic effects of low-dosage xenobiotics, as well as the interactive effects of mixtures of xenobiotic pollutants.
Collapse
Affiliation(s)
- Ivan Couée
- Centre National de la Recherche Scientifique, UMR 6553 ECOBIO, Université de Rennes 1, Campus de Beaulieu, bâtiment 14A, 35042 Rennes Cedex, France.
| | | | | | | | | |
Collapse
|
15
|
Hirakawa I, Miyagawa S, Mitsui N, Miyahara M, Onishi Y, Kagami Y, Kusano T, Takeuchi T, Ohta Y, Iguchi T. Developmental disorders and altered gene expression in the tropical clawed frog (Silurana tropicalis) exposed to 17α-ethinylestradiol. J Appl Toxicol 2012; 33:1001-10. [DOI: 10.1002/jat.2836] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 09/14/2012] [Accepted: 09/27/2012] [Indexed: 11/05/2022]
Affiliation(s)
| | - Shinichi Miyagawa
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; The Graduate University for Advanced Studies; 5-1 Higashiyama, Myodaiji; Okazaki; Aichi; 444-8787; Japan
| | - Naoko Mitsui
- Institute of Environmental Ecology, IDEA Consultants Inc.; 1334-5 Riemon, Ooigawa; Shida; Shizuoka; 421-0212; Japan
| | - Maki Miyahara
- Institute of Environmental Ecology, IDEA Consultants Inc.; 1334-5 Riemon, Ooigawa; Shida; Shizuoka; 421-0212; Japan
| | - Yuta Onishi
- Institute of Environmental Ecology, IDEA Consultants Inc.; 1334-5 Riemon, Ooigawa; Shida; Shizuoka; 421-0212; Japan
| | | | | | | | | | - Taisen Iguchi
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; The Graduate University for Advanced Studies; 5-1 Higashiyama, Myodaiji; Okazaki; Aichi; 444-8787; Japan
| |
Collapse
|
16
|
Oka T, Mitsui-Watanabe N, Tatarazako N, Onishi Y, Katsu Y, Miyagawa S, Ogino Y, Yatsu R, Kohno S, Takase M, Kawashima Y, Ohta Y, Aoki Y, Guillette LJ, Iguchi T. Establishment of transactivation assay systems using fish, amphibian, reptilian and human thyroid hormone receptors. J Appl Toxicol 2012; 33:991-1000. [DOI: 10.1002/jat.2825] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 08/24/2012] [Accepted: 08/24/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Tomohiro Oka
- Integrated Environmental Risk Research Section, Research Center for Environmental Risk; National Institute for Environmental Studies; 16-2 Onogawa; Tsukuba; Ibaraki; 305-8506; Japan
| | - Naoko Mitsui-Watanabe
- Environmental Risk Research Center, Institute of Environmental Ecology; IDEA Consultants, Inc.; 1334-5 Riemon; Yaizu; Shizuoka; 421-0212; Japan
| | - Norihisa Tatarazako
- Integrated Environmental Risk Research Section, Research Center for Environmental Risk; National Institute for Environmental Studies; 16-2 Onogawa; Tsukuba; Ibaraki; 305-8506; Japan
| | - Yuta Onishi
- Environmental Risk Research Center, Institute of Environmental Ecology; IDEA Consultants, Inc.; 1334-5 Riemon; Yaizu; Shizuoka; 421-0212; Japan
| | | | - Shinichi Miyagawa
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; The Graduate University for Advanced Studies; 5-1 Higashiyama, Myodaiji; Okazaki; Aichi; 444-8787; Japan
| | - Yukiko Ogino
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; The Graduate University for Advanced Studies; 5-1 Higashiyama, Myodaiji; Okazaki; Aichi; 444-8787; Japan
| | - Ryohei Yatsu
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; The Graduate University for Advanced Studies; 5-1 Higashiyama, Myodaiji; Okazaki; Aichi; 444-8787; Japan
| | - Satomi Kohno
- Department of Obstetrics and Gynecology & Marine Biomedicine and Environmental Science Center; Medical University of South Carolina and Hollings Marine Laboratory; 221 Ft. Johnson Rd.; Charleston; SC; 29412; USA
| | - Minoru Takase
- Institute for Amphibian Biology, Graduate School of Science; Hiroshima University; 1-3-1 Higashi-Hiroshima; Hiroshima; 739-8526; Japan
| | - Yukio Kawashima
- Japan NUS Co. Ltd.; 7-5-25 Nishi-Shinjyuku, Shinjyuku-ku; Tokyo; 160-0023; Japan
| | - Yasuhiko Ohta
- Department of Veterinary Medicine, Faculty of Agriculture; Tottori University; Koyama, Tottori; Tottori; 680-8553; Japan
| | - Yasunobu Aoki
- Integrated Environmental Risk Research Section, Research Center for Environmental Risk; National Institute for Environmental Studies; 16-2 Onogawa; Tsukuba; Ibaraki; 305-8506; Japan
| | - Louis J. Guillette
- Department of Obstetrics and Gynecology & Marine Biomedicine and Environmental Science Center; Medical University of South Carolina and Hollings Marine Laboratory; 221 Ft. Johnson Rd.; Charleston; SC; 29412; USA
| | - Taisen Iguchi
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; The Graduate University for Advanced Studies; 5-1 Higashiyama, Myodaiji; Okazaki; Aichi; 444-8787; Japan
| |
Collapse
|
17
|
Tomšíková H, Aufartová J, Solich P, Nováková L, Sosa-Ferrera Z, Santana-Rodríguez JJ. High-sensitivity analysis of female-steroid hormones in environmental samples. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2011.11.008] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|