51
|
Kolatorova L, Vitku J, Hampl R, Adamcova K, Skodova T, Simkova M, Parizek A, Starka L, Duskova M. Exposure to bisphenols and parabens during pregnancy and relations to steroid changes. ENVIRONMENTAL RESEARCH 2018; 163:115-122. [PMID: 29433019 DOI: 10.1016/j.envres.2018.01.031] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/19/2018] [Accepted: 01/23/2018] [Indexed: 05/21/2023]
Abstract
BACKGROUND The harmful effects of endocrine disrupting compounds (EDCs) on human health are generally well-known, and exposure during fetal development may have lasting effects. Fetal exposure to bisphenol A (BPA) has been recently relatively well-studied; however, less is known about alternatives such as bisphenol S (BPS), bisphenol F (BPF) and bisphenol AF (BPAF), which have started to appear in consumer products. Parabens are another widespread group of EDCs, with confirmed transplacental passage. The usage of many cosmetic, pharmaceutical and consumer products during the pregnancy that may contain parabens and bisphenols has led to the need for investigation. OBJECTIVES To shed more light into the transplacental transport of BPA, its alternatives, and parabens, and to study their relation to fetal steroidogenesis. METHODS BPA, BPS, BPF, BPAF, methylparaben, ethylparaben, propylparaben, butylparaben, benzylparaben and 15 steroids including estrogens, corticoids, androgens and immunomodulatory ones were determined in 27 maternal (37th week of pregnancy) and cord plasma samples using liquid chromatography - tandem mass spectrometry methods. RESULTS In cord blood, significantly higher BPA levels (p=0.0455) were observed compared to maternal plasma. The results from multiple regression models showed that in cord blood, methylparaben (β=-0.027, p=0.027), propylparaben (β=-0.025, p=0.03) and the sum of all measured parabens (β=-0.037, p=0.015) were inversely associated with testosterone levels. CONCLUSION To the best of our knowledge, this is the first study reporting the simultaneous detection of BPA, alternative bisphenols, parabens and steroids in maternal and cord plasma. Our study confirmed the transplacental transport of BPA, with likely accumulation in the fetal compartment. The negative association of cord blood parabens and testosterone levels points to possible risks with respect to importance of testosterone for prenatal male development.
Collapse
Affiliation(s)
- Lucie Kolatorova
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic.
| | - Jana Vitku
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic.
| | - Richard Hampl
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic.
| | - Karolina Adamcova
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General Teaching Hospital, Apolinarska 18, 128 51 Prague, Czech Republic.
| | - Tereza Skodova
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic.
| | - Marketa Simkova
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic.
| | - Antonin Parizek
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General Teaching Hospital, Apolinarska 18, 128 51 Prague, Czech Republic.
| | - Luboslav Starka
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic.
| | - Michaela Duskova
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic.
| |
Collapse
|
52
|
Ammonium hydroxide enhancing electrospray response and boosting sensitivity of bisphenol A and its analogs. Talanta 2018; 182:590-594. [DOI: 10.1016/j.talanta.2018.02.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/05/2018] [Accepted: 02/07/2018] [Indexed: 11/23/2022]
|
53
|
Xiong L, Yan P, Chu M, Gao YQ, Li WH, Yang XL. A rapid and simple HPLC–FLD screening method with QuEChERS as the sample treatment for the simultaneous monitoring of nine bisphenols in milk. Food Chem 2018; 244:371-377. [DOI: 10.1016/j.foodchem.2017.10.030] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 08/23/2017] [Accepted: 10/08/2017] [Indexed: 01/13/2023]
|
54
|
Chang H, Shen X, Shao B, Wu F. Sensitive analysis of steroid estrogens and bisphenol a in small volumes of water using isotope-dilution ultra-performance liquid chromatography-tandem mass spectrometry. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:881-888. [PMID: 29353804 DOI: 10.1016/j.envpol.2018.01.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/21/2017] [Accepted: 01/02/2018] [Indexed: 06/07/2023]
Abstract
An isotope-dilution ultra-performance liquid chromatography-electrospray tandem mass spectrometry method combined with dansylation was established to sensitively quantify four steroid estrogens (estrone, 17α-estradiol, 17β-estradiol and 17α-ethynylestradiol) and bisphenol A in sewage influent and effluent. A simple hexane extraction was performed from a small volume (10 mL), followed by dansyl chloride derivatization and purification with a silica cartridge. The method effectively reduced the matrix effects in sample extract and permitted the selective and sensitive determination of target compounds from complicated matrices. The detection limits of the method for steroid estrogens were 0.20-0.90 ng L-1 in influent and 0.10-0.20 ng L-1 in effluent samples. For bisphenol A, the limits detection of the method were 20 and 0.80 for influent and effluent samples, respectively. Recoveries of 85%-96% were observed in all matrices. The method was applied to analyze residual estrogens and bisphenol A in sewage influent and effluent samples from Beijing, China. The concentrations of bisphenol A (636-1200 ng L-1) were up to 250 times higher than those of steroid estrogens. Estrone was the dominant estrogen in influent and effluent samples, while similar concentrations of 17α-estradiol and 17β-estradiol were detected in all samples.
Collapse
Affiliation(s)
- Hong Chang
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Sciences & Engineering, Beijing Forestry University, Beijing 100083, China.
| | - Xiaoyan Shen
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Sciences & Engineering, Beijing Forestry University, Beijing 100083, China
| | - Bing Shao
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| |
Collapse
|
55
|
Wang Z, Yu J, Yao J, Wu L, Xiao H, Wang J, Gao R. Simultaneous identification and quantification of bisphenol A and 12 bisphenol analogues in environmental samples using precolumn derivatization and ultra high performance liquid chromatography with tandem mass spectrometry. J Sep Sci 2018; 41:2269-2278. [PMID: 29427346 DOI: 10.1002/jssc.201701087] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 01/22/2018] [Accepted: 01/29/2018] [Indexed: 11/10/2022]
Abstract
A method for the identification and quantification of bisphenol A and 12 bisphenol analogues in river water and sediment samples combining liquid-liquid extraction, precolumn derivatization, and ultra high-performance liquid chromatography coupled with tandem mass spectrometry was developed and validated. Analytes were extracted from the river water sample using a liquid-liquid extraction method. Dansyl chloride was selected as a derivatization reagent. Derivatization reaction conditions affecting production of the dansyl derivatives were tested and optimized. All the derivatized target compounds were well separated and eluted in 10 min. Dansyl chloride labeled compounds were analyzed using a high-resolution mass spectrometer with electrospray ionization in the positive mode, and the results were confirmed and quantified in the parallel reaction monitoring mode. The method validation results showed a satisfactory level of sensitivity. Linearity was assessed using matrix-matched standard calibration, and good correlation coefficients were obtained. The limits of quantification for the analytes ranged from 0.005 to 0.02 ng/mL in river water and from 0.15 to 0.80 ng/g in sediment. Good reproducibility of the method in terms of intra- and interday precision was achieved, yielding relative standard deviations of less than 10.1 and 11.6%, respectively. Finally, this method was successfully applied to the analysis of real samples.
Collapse
Affiliation(s)
- Zhonghe Wang
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Jing Yu
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Jiaxi Yao
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Linlin Wu
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Hang Xiao
- Department of Toxicology, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Jun Wang
- Department of Toxicology, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Rong Gao
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| |
Collapse
|
56
|
Spectrofluorimetric determination of bisphenol A in tap waters by exploiting liquid-liquid microextraction in a sequential injection system. Microchem J 2018. [DOI: 10.1016/j.microc.2017.12.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
57
|
Schořálková T, Kratochvíl L, Kubička L. To fight or mate? Hormonal control of sex recognition, male sexual behavior and aggression in the gecko lizard. Horm Behav 2018; 97:18-24. [PMID: 29037971 DOI: 10.1016/j.yhbeh.2017.10.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 10/11/2017] [Accepted: 10/12/2017] [Indexed: 11/24/2022]
Abstract
Squamate reptiles are a highly diversified vertebrate group with extensive variability in social behavior and sexual dimorphism. However, hormonal control of these traits has not previously been investigated in sufficient depth in many squamate lineages. Here, we studied the hormonal control of male sexual behavior, aggressiveness, copulatory organ (hemipenis) size and sex recognition in the gecko Paroedura picta, comparing ovariectomized females, ovariectomized females treated with exogenous dihydrotestosterone (DHT), ovariectomized females treated with exogenous testosterone (T), control females and males. The administration of both T and DHT led to the expression of male-typical sexual behavior in females. However, in contrast to T, increased circulating levels of DHT alone were not enough to initiate the full expression of male-typical offensive aggressive behavior and development of hemipenes in females. Ovariectomized females were as sexually attractive as control females, which does not support the need for the demasculinization of the cues used for sex recognition by ovarian hormones as suggested in other sauropsids. On the other hand, our results point to the masculinization of the sex recognition cues by male gonadal androgens. Previously, we also demonstrated that sexually dimorphic growth is controlled by ovarian hormones in P. picta. Overall, it appears that individual behavioral and morphological sexually-dimorphic traits are controlled by multiple endogenous pathways in this species. Variability in the endogenous control of particular traits could have permitted their disentangling during evolution and the occurrence of (semi)independent changes across squamate phylogeny.
Collapse
Affiliation(s)
- Tereza Schořálková
- Faculty of Science, Charles University, Department of Ecology, Viničná 7, 128 43 Praha 2, Czech Republic
| | - Lukáš Kratochvíl
- Faculty of Science, Charles University, Department of Ecology, Viničná 7, 128 43 Praha 2, Czech Republic.
| | - Lukáš Kubička
- Faculty of Science, Charles University, Department of Ecology, Viničná 7, 128 43 Praha 2, Czech Republic
| |
Collapse
|
58
|
Zhang J, Li T, Wang T, Yuan C, Zhong S, Guan T, Li Z, Wang Y, Yu H, Luo Q, Wang Y, Zhang T. Estrogenicity of halogenated bisphenol A: in vitro and in silico investigations. Arch Toxicol 2017; 92:1215-1223. [PMID: 29152682 DOI: 10.1007/s00204-017-2127-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 11/15/2017] [Indexed: 12/23/2022]
Abstract
The binding interactions of bisphenol A (BPA) and its halogenated derivatives (halogenated BPAs) to human estrogen receptor α ligand binding domain (hERα-LBD) was investigated using a combined in vitro and in silico approach. First, the recombinant hERα-LBD was prepared as a soluble protein in Escherichia coli BL21(DE3)pLysS. A native fluorescent phytoestrogen, coumestrol, was employed as tracer for the fluorescence polarization assay. The results of the in vitro binding assay showed that bisphenol compounds could bind to hERα-LBD as the affinity ligands. All the tested halogenated BPAs exhibited weaker receptor binding than BPA, which might be explained by the steric effect of substituents. Molecular docking studies elucidated that the halogenated BPAs adopted different conformations in the flexible hydrophobic ligand binding pocket (LBP), which is mainly dependent on their distinct halogenation patterns. The compounds with halogen substituents on the phenolic rings and on the bridging alkyl moiety acted as agonists and antagonists for hERα, respectively. Interestingly, all the compounds in the agonist conformation of hERα formed a hydrogen bond with His524, while the compounds in the antagonist conformation formed a hydrogen bond with Thr347. These docking results suggested a pivotal role of His524/Thr347 in maintaining the hERα structure in the biologically active agonist/antagonist conformation. Comparison of the calculated binding energies vs. experimental binding affinities yielded a good correlation, which might be applicable for the structure-based design of novel bisphenol compounds with reduced toxicities and for environmental risk assessment. In addition, based on hERα-LBD as a recognition element, the proposed fluorescence polarization assay may offer an alternative to chromatographic techniques for the multi-residue determination of bisphenol compounds.
Collapse
Affiliation(s)
- Jie Zhang
- Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Tiezhu Li
- Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Tuoyi Wang
- Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Cuiping Yuan
- Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Shuning Zhong
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Tianzhu Guan
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Zhuolin Li
- Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Yongzhi Wang
- Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Hansong Yu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, 130118, China
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Yongjun Wang
- Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, Changchun, 130033, China.
| | - Tiehua Zhang
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China.
| |
Collapse
|
59
|
Kolatorova Sosvorova L, Chlupacova T, Vitku J, Vlk M, Heracek J, Starka L, Saman D, Simkova M, Hampl R. Determination of selected bisphenols, parabens and estrogens in human plasma using LC-MS/MS. Talanta 2017; 174:21-28. [DOI: 10.1016/j.talanta.2017.05.070] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 05/17/2017] [Accepted: 05/25/2017] [Indexed: 11/25/2022]
|
60
|
Li XS, Li S, Kellermann G. Simultaneous determination of three estrogens in human saliva without derivatization or liquid-liquid extraction for routine testing via miniaturized solid phase extraction with LC-MS/MS detection. Talanta 2017; 178:464-472. [PMID: 29136849 DOI: 10.1016/j.talanta.2017.09.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 12/23/2022]
Abstract
Accurate quantitation of estrogens (i.e, estrone (E1), estradiol (E2) and estriol (E3)) is valuable for clinical assessment of human health and disease. Alterations in estrogen levels have been implicated in numerous pathological conditions. However, inadequacies in sensitivity and specificity, cumbersome sample preparation and invasive specimen collection hamper the usability of available methods for clinical applications. Herein, a simple, rapid, highly sensitive and specific LC-MS/MS method was developed and validated for the simultaneous determination of three estrogens in human saliva providing a non-invasive alternative to conventional blood samples. For the first time, a 96-well hydrophilic-lipophilic-balanced (HLB) microplate was employed for clean-up and enrichment of estrogens in a single extraction without the requirements of derivatization, evaporation, liquid-liquid extraction and online extraction. A rapid LC chromatographic separation with a turnaround time of 5.0min was achieved on a BEH C18 XP column. The use of 0.1mM ammonium fluoride (NH4F) as LC additive, and integration of summated and scheduled multiple reaction monitoring (MRM) transitions substantially improved the sensitivity to 1pg/mL, allowing the accurate quantitation of trace levels of three estrogens in one run. The assay was fully validated with good performance for extraction efficiency (67.0-85.6%), matrix effect (89.6-100.2%), linearity (from 1.0pg/mL up to 1000pg/mL), accuracy (98.9-112.4%) and precision (≤7.4%). Additionally, the assay was unaffected by 34 structurally-similar, potentially interfering substances tested at high clinical concentrations. The applicability of the assay was demonstrated by assessing the reference intervals of authentic saliva samples from healthy adult males, pre- and post-menopausal females. The easy sample preparation, fast LC and multi-analyte MS/MS detection utilizing noninvasive saliva as a specimen delivers a simple, practical, sensitive and accurate tool suitable for the high throughput measurement of E1, E2 and E3 in clinical laboratories.
Collapse
Affiliation(s)
| | - Shu Li
- Pharmasan Labs, Inc., 373 280th Street, Osceola, WI 54020, USA
| | | |
Collapse
|
61
|
ADAMCOVÁ K, KOLÁTOROVÁ L, CHLUPÁČOVÁ T, ŠIMKOVÁ M, JANDÍKOVÁ H, PAŘÍZEK A, STÁRKA L, DUŠKOVÁ M. Changes to Fetal Steroidogenesis Caused by Maternal Smoking. Physiol Res 2017; 66:S375-S386. [DOI: 10.33549/physiolres.933728] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Smoking during pregnancy presents health risks for both the mother and her child. In this study we followed changes in the production of steroid hormones in pregnant smokers. We focused on changes in steroidogenesis in the blood of mothers in their 37th week of pregnancy and in mixed cord blood from their newborns. The study included 88 healthy women with physiological pregnancies (17 active smokers and 71 non-smokers). We separately analyzed hormonal changes associated with smoking according to the sex of newborns. In women with male fetuses, we found higher levels of serum cortisone, dehydroepiandrosterone (DHEA), 7α-OH-DHEA, 17-OH pregnenolone, testosterone, and androstenedione in smokers at the 37th week compared to non-smokers. In women with female fetuses, we found lower serum levels of 7β-OH-DHEA and higher androstenedione in smokers at the 37th week. We found significantly higher levels of testosterone in newborn males of smokers and higher levels of 7α-OH-DHEA in female newborns of smokers. Smoking during pregnancy induces changes in the production of steroids in both the mother and her child. These changes are different for different fetal sexes, with more pronounced changes in mothers carrying male newborns as well as in the newborn males themselves.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - M. DUŠKOVÁ
- Institute of Endocrinology, Prague, Czech Republic
| |
Collapse
|
62
|
Vitku J, Kolatorova L, Hampl R. Occurrence and reproductive roles of hormones in seminal plasma. Basic Clin Androl 2017; 27:19. [PMID: 29046808 PMCID: PMC5640966 DOI: 10.1186/s12610-017-0062-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 08/16/2017] [Indexed: 12/13/2022] Open
Abstract
Only 2-5% of seminal fluid is composed of spermatozoa, while the rest is seminal plasma. The seminal plasma is a rich cocktail of organic and inorganic compounds including hormones, serving as a source of nutrients for sperm development and maturation, protecting them from infection and enabling them to overcome the immunological and chemical environment of the female reproductive tract. In this review, a survey of the hormones found in human seminal plasma, with particular emphasis on reproductive hormones is provided. Their participation in fertilization is discussed including their indispensable role in ovum fertilization. The origin of individual hormones found in seminal plasma is discussed, along with differences in the concentrations in seminal plasma and blood plasma. A part of review is devoted to methods of measurement, emphasising particular instances in which they differ from measurement in blood plasma. These methods include separation techniques, overcoming the matrix effect and current ways for end-point measurement, focusing on so called hyphenated techniques as a combination of chromatographic separation and mass spectrometry. Finally, the informative value of their determination as markers of male fertility disorders (impaired spermatogenesis, abnormal sperm parameters, varicocele) is discussed, along with instances where measuring their levels in seminal plasma is preferable to measurement of levels in blood plasma.
Collapse
Affiliation(s)
- Jana Vitku
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic
| | - Lucie Kolatorova
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic
| | - Richard Hampl
- Department of Steroids and Proteofactors, Institute of Endocrinology, Narodni 8, 116 94 Prague, Czech Republic
| |
Collapse
|
63
|
Zhou H, Wang Y, Gatcombe M, Farris J, Botelho JC, Caudill SP, Vesper HW. Simultaneous measurement of total estradiol and testosterone in human serum by isotope dilution liquid chromatography tandem mass spectrometry. Anal Bioanal Chem 2017; 409:5943-5954. [PMID: 28801832 DOI: 10.1007/s00216-017-0529-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/05/2017] [Accepted: 07/18/2017] [Indexed: 12/13/2022]
Abstract
Reliable measurement of total testosterone and estradiol is critical for their use as biomarkers of hormone-related disorders in patient care and translational research. We developed and validated a mass spectrometry method to simultaneously quantify these analytes in human serum without chemical derivatization. Serum is equilibrated with isotopic internal standards and treated with acidic buffer to release hormones from their binding proteins. Lipids are isolated and polar impurities are removed by two serial liquid-liquid extraction steps. Total testosterone and estradiol are measured using liquid chromatography tandem mass spectrometry (LC-MS/MS) in combination of positive and negative electrospray ionization modes. The method shows broad analytical measurement range for both testosterone 0.03-48.5 nM (0.75-1400 ng/dL) and estradiol 11.0-5138 pM (2.99-1400 pg/mL) and excellent agreement with certified reference materials (mean bias less than 2.1% to SRM 971, BCR 576, 577, and 578) and a high order reference method (mean bias 1.25% for testosterone and -0.84% for estradiol). The high accuracy of the method was monitored and certified by CDC Hormone Standardization (HoSt) Program for 2 years with mean bias -0.7% (95% CI -1.6% to 0.2%) for testosterone and 0.1% (95% CI -2.2% to 2.3%) for estradiol. The method precision over a 2-year period for quality control pools at low, medium, and high concentrations was 2.7-2.9% for testosterone and 3.3-5.3% for estradiol. With the consistently excellent accuracy and precision, this method is readily applicable for high-throughput clinical and epidemiological studies.
Collapse
Affiliation(s)
- Hui Zhou
- Centers For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Yuesong Wang
- Centers For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Matthew Gatcombe
- Centers For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Jacob Farris
- Centers For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Julianne C Botelho
- Centers For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Samuel P Caudill
- Centers For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Hubert W Vesper
- Centers For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA.
| |
Collapse
|
64
|
Zhang T, Liu Y, Chen H, Gao J, Zhang Y, Yuan C, Wang Z. The DNA methylation status alteration of two steroidogenic genes in gonads of rare minnow after bisphenol A exposure. Comp Biochem Physiol C Toxicol Pharmacol 2017; 198:9-18. [PMID: 28501544 DOI: 10.1016/j.cbpc.2017.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/19/2017] [Accepted: 05/05/2017] [Indexed: 01/28/2023]
Abstract
Both cytochrome P450c17 (CYP17A1) and P-450 side chain cleavage (CYP11A1) play important roles in steroid biosynthesis. According to our previous studies, bisphenol A (BPA) could regulate the mRNA expression of cyp17a1 and cyp11a1 in rare minnow Gobiocypris rarus. However, the potential mechanism of the regulation is barely understood. In the present study, aiming to explore how BPA affects the mRNA expression of cyp17a1 and cyp11a1 in testes and ovaries of G. rarus, we firstly cloned 340-bp fragment of 5' flanking region of cyp11a1 and then detected the methylation level of CpG loci involved in 5' flanking of cyp11a1 and cyp17a1 and their mRNA expression levels. Results showed that exposure to BPA significantly increased serum estradiol (E2) and 11-ketotesterone (11-KT) concentrations. Ovarian mRNA expression of cyp17a1 and cyp11a1 were significantly decreased after BPA exposure 7- for and 14-days. However, transcriptions of testicular cyp17a1 and cyp11a1 were significantly increased and decreased respectively after BPA treatment for 14days. The DNA methylation levels of cyp17a1 were decreased in ovaries on day 7 and increased in ovaries and decreased in testes respectively on day 14. The methylation levels of cyp11a1 were increased in ovaries on day 7 and both ovaries and testes on day 14. There were a significant correlation between DNA methylation at specific CpG loci and cyp17a1 and cyp11a1 genes transcription levels. In conclusion, the CpG loci methylation in 5' flanking region appears to involve in the regulation of mRNA expression of cyp17a1 and cyp11a1 mediated by BPA.
Collapse
Affiliation(s)
- Ting Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yan Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hong Chen
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiancao Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yingying Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cong Yuan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
| |
Collapse
|
65
|
Lee C, Kim CH, Kim S, Cho SH. Simultaneous determination of bisphenol A and estrogens in hair samples by liquid chromatography-electrospray tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1058:8-13. [PMID: 28521190 DOI: 10.1016/j.jchromb.2017.05.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 05/04/2017] [Accepted: 05/07/2017] [Indexed: 12/01/2022]
Abstract
Bisphenol A (BPA), an endocrine disrupter, is widely used to make chemicals for polycarbonate, plastics, beverage containers, epoxy resins, and cash register receipts. BPA is one of the known xenoestrogens, which have weak estrogenic activity and cause obesity, diabetes, breast cancer, and reproductive disorders. Even though the concentration level of metabolomes in hair is usually lower than that in urine and blood, there are several reasons why we chose to use hair samples. First, the sampling procedure of hairs is simple. Second, it is also easy to preserve the sample for long term and track the drug-exposure record of a given sample. Third, deformation and contamination of samples rarely occur. In this study, an improved analytical method to determine the levels of BPA and estrogens in hair samples was developed by liquid chromatography-electrospray tandem mass spectrometry (LC-ESI/MS/MS). Hair samples were extracted by an Oasis HLB extraction cartridge after incubation with 1N HCl and derivatized with dansyl chloride to increase sensitivity. BPA and estrogens (estrone, 17β-estradiol, and estriol) were separated using Shiseido CAPCELL PAK C18 column (2.0×100mm, 3μm) and a mobile phase consisting of 10mM ammonium acetate in water and acetonitrile with a gradient program at a flow rate of 0.3mL/min and were monitored with electrospray tandem mass spectrometry (ESI-MS/MS). The linearity of this method was over 0.995. The limits of detection (LOD) at a signal-to-noise (S/N) ratio of 3 were 0.25-6.0ng/g. The alteration of estrogens levels induced by BPA may play important role to understanding probable endocrine disruptive exposure, and the described methods could be used to evaluate and monitor exposure of endocrine disruptor.
Collapse
Affiliation(s)
- Chaelin Lee
- Center for Chemical Analysis, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 305-600, Republic of Korea; Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Chong Hyeak Kim
- Center for Chemical Analysis, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 305-600, Republic of Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sung-Hee Cho
- Center for Chemical Analysis, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 305-600, Republic of Korea.
| |
Collapse
|
66
|
Gong SX, Wang XL, Liu W, Wang ML, Wang X, Wang ZW, Zhao RS. Aminosilanized magnetic carbon microspheres for the magnetic solid-phase extraction of bisphenol A, bisphenol AF, and tetrabromobisphenol A from environmental water samples. J Sep Sci 2017; 40:1755-1764. [DOI: 10.1002/jssc.201601228] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 02/07/2017] [Accepted: 02/07/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Sheng-Xiang Gong
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Centre; Shandong Academy of Sciences; Jinan China
- College of Food Science and Engineering; Shandong Agricultural University; Taian China
- Department of Food Science and Technology, School of Agriculture and Biology; Shanghai Jiao Tong University; Shanghai China
| | - Xiao-Li Wang
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Centre; Shandong Academy of Sciences; Jinan China
| | - Wei Liu
- Shandong Provincial Environment Monitoring Center; Jinan China
| | - Ming-Lin Wang
- College of Food Science and Engineering; Shandong Agricultural University; Taian China
| | - Xia Wang
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Centre; Shandong Academy of Sciences; Jinan China
| | - Zheng-Wu Wang
- Department of Food Science and Technology, School of Agriculture and Biology; Shanghai Jiao Tong University; Shanghai China
| | - Ru-Song Zhao
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Centre; Shandong Academy of Sciences; Jinan China
| |
Collapse
|
67
|
Kubička L, Schořálková T, Červenka J, Kratochvíl L. Ovarian control of growth and sexual size dimorphism in a male-larger gecko. ACTA ACUST UNITED AC 2017; 220:787-795. [PMID: 27956485 DOI: 10.1242/jeb.146597] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 12/07/2016] [Indexed: 11/20/2022]
Abstract
Sexual size dimorphism (SSD) reflects sex-specific solutions to the allocation of energy among growth, reproduction and survival; however, the proximate mechanisms behind these solutions are still poorly known even in vertebrates. In squamates, sexual differences in body size used to be attributed to direct energy allocation to energetically demanding processes, largely to reproduction. In addition, SSD is assumed to be controlled by specific endogenous mechanisms regulating growth in a sex-specific manner, namely masculinization by male gonadal androgens or feminization by ovarian hormones. We performed a manipulative growth experiment in females of the male-larger gecko Paroedura picta in order to test the reproductive cost hypothesis, the male androgen hypothesis and the ovarian hormone hypothesis. Specifically, we investigated the effect of total ovariectomy, prepubertal ovariectomy, unilateral ovariectomy, and total ovariectomy followed by exogenous estradiol, dihydrotestosterone or testosterone treatment, on female growth in comparison to males and reproductively active females. The present results and the results of our previous experiments do not support the hypotheses that SSD reflects direct energy allocation to reproduction and that male gonadal androgens are involved. However, all lines of evidence, particularly the comparable growth of reproducing intact and unilaterally ovariectomized females, were concordant with the control of SSD by ovarian hormones. We suggest that feminization of growth by female gonadal hormones should be taken into consideration as an endogenous pathway responsible for the ontogeny of SSD in squamates.
Collapse
Affiliation(s)
- Lukáš Kubička
- Department of Ecology, Faculty of Science, Charles University, Viničná 7, Praha 2 128 44, Czech Republic
| | - Tereza Schořálková
- Department of Ecology, Faculty of Science, Charles University, Viničná 7, Praha 2 128 44, Czech Republic
| | - Jan Červenka
- Department of Ecology, Faculty of Science, Charles University, Viničná 7, Praha 2 128 44, Czech Republic
| | - Lukáš Kratochvíl
- Department of Ecology, Faculty of Science, Charles University, Viničná 7, Praha 2 128 44, Czech Republic
| |
Collapse
|
68
|
Chamas A, Pham HTM, Jähne M, Hettwer K, Uhlig S, Simon K, Einspanier A, Baronian K, Kunze G. Simultaneous detection of three sex steroid hormone classes using a novel yeast-based biosensor. Biotechnol Bioeng 2017; 114:1539-1549. [PMID: 28092110 DOI: 10.1002/bit.26249] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/09/2017] [Accepted: 01/11/2017] [Indexed: 12/15/2022]
Abstract
A biosensor detecting estrogens, progestogens, and androgens in complex samples and in a single step is described. Three Arxula adeninivorans yeast strains were created, each strain producing a different recombinant human hormone receptor and a different fluorescent reporter protein. These strains were then mixed to create G1212/YRC102-hHR-fluo, the biological component of the biosensor. During incubation with G1212/YRC102-hHR-fluo, hormones present in a sample bind to their target receptor, which leads to the production of a specific fluorescent protein. Three fluorescence scans of the yeast suspension determine which fluorescence protein has been produced, thus revealing which hormone receptor (estrogen, progesterone, and androgen) has been activated by the hormones or hormone mimics present in the sample. The biosensor has similar sensitivities to the existing A. adeninivorans cell-based assays. The detection of the three hormone classes in one single experiment reduces the labor and time required to assay for the three hormone classes. The biosensor was also trialed with animal serum samples for the detection of progestogens, androgens, and estrogens and gave results that correlated well with ELISA analysis in case of progestogens. These results highlight the potential usefulness of the biosensor for comprehensive determination of hormone status in samples from veterinary origin. Biotechnol. Bioeng. 2017;114: 1539-1549. © 2017 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Alexandre Chamas
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstr. 3, Gatersleben D-06466, Germany
| | - Ha Thi Minh Pham
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstr. 3, Gatersleben D-06466, Germany.,Institute of Biotechnology, Vietnam Academy of Science and Technology, Cau Giay, Ha Noi, Vietnam
| | | | | | | | | | - Almuth Einspanier
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Leipzig, Germany
| | - Kim Baronian
- School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Gotthard Kunze
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstr. 3, Gatersleben D-06466, Germany
| |
Collapse
|
69
|
Zhao H, Xiang L, Li J, Yang Z, Fang J, Zhao C, Xu S, Cai Z. Investigation on fragmentation pathways of bisphenols by using electrospray ionization Orbitrap mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30:1901-1913. [PMID: 27392165 DOI: 10.1002/rcm.7666] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 06/05/2016] [Accepted: 06/15/2016] [Indexed: 06/06/2023]
Abstract
RATIONALE Bisphenols, such as bisphenol A (BPA) and bisphenol S (BPS), are widely used in industrial products, although they have been demonstrated to be environmental contaminants with toxicity. However, few studies on the mass spectrometric fragmentation pathway of these compounds have been reported using high-resolution mass spectrometry (HRMS). METHODS The MS/MS fragmentations of nine bisphenols, together with several corresponding isotope-labeled compounds, were studied by Orbitrap MS using electrospray ionization (ESI) in negative ion mode and higher energy collisional-dissociation (HCD). The [M - H](-) ions of the compounds formed by ESI were selected as the precursor ions for MS/MS. The accurate m/z values for product ions were acquired to deduce the elemental compositions and fragmentation pathways. RESULTS The elemental compositions of the ions were calculated from the accurate mass data. Common MS/MS product ions and characteristic neutral losses were summarized. Six bisphenols formed the common product ion at m/z 93 (C6 H5 O). The [M - H](-) ions of five bisphenols were found to lose a phenol group (C6 H5 OH). Four bisphenols formed the [M - H - CH4 ](-) ion. The proposed fragmentation pathways of representative compounds of BPA and BPS were verified from the analysis of isotope-labeled compounds. CONCLUSIONS The MS/MS fragmentation pathways of nine bisphenols were, for the first time, systematically investigated with HRMS. The obtained data could be valuable for the identification of a variety of bisphenols in environmental and biological samples.
Collapse
Affiliation(s)
- Hongzhi Zhao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, P.R. China
| | - Li Xiang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, P.R. China
| | - Jiufeng Li
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, P.R. China
| | - Zhiyi Yang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, P.R. China
| | - Jing Fang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, P.R. China
| | - Chao Zhao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, P.R. China
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, P.R. China
| |
Collapse
|
70
|
Saraji M, Keikavousi Behbahan A. Octadecylsilane/Nylon‐6 composite as a thin‐film microextraction sorbent for the determination of bisphenol A in water samples. J Sep Sci 2016; 39:3616-23. [DOI: 10.1002/jssc.201600056] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 07/14/2016] [Accepted: 07/20/2016] [Indexed: 01/19/2023]
Affiliation(s)
- Mohammad Saraji
- Department of ChemistryIsfahan University of Technology Isfahan Iran
| | | |
Collapse
|
71
|
Sun F, Kang L, Xiang X, Li H, Luo X, Luo R, Lu C, Peng X. Recent advances and progress in the detection of bisphenol A. Anal Bioanal Chem 2016; 408:6913-27. [PMID: 27485626 DOI: 10.1007/s00216-016-9791-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 06/27/2016] [Accepted: 07/12/2016] [Indexed: 01/01/2023]
Abstract
Bisphenol A (BPA) is an important industrial chemical used as a plasticizer in polycarbonate and epoxy resins in the plastic and paper industries. Because of its estrogenic properties, BPA has attracted increasing attention from many researchers. This review focuses primarily on analytical methods for BPA detection that have emerged in recent years. We present and discuss the advantages and disadvantages of sample preparation techniques (e.g., solvent extraction, solid-phase extraction, molecularly imprinted polymer solid-phase extraction, and micro-extraction techniques) and analytical methods (e.g., liquid chromatography, liquid chromatography-mass spectrometry, gas chromatography-mass spectrometry, capillary electrophoresis, immunoassay, and several novel sensors). We also discuss expected future developments for the detection of BPA. Graphical Abstract This review focuses primarily on the recent development in the detection of bisphenol A including sample pre-treatment and analytical methods.
Collapse
Affiliation(s)
- Fengxia Sun
- Analysis and Testing Center, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China.,State Key Laboratory of Sheep Genetic Improvement & Healthy Breeding, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China
| | - Lichao Kang
- Analysis and Testing Center, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China
| | - Xiaoli Xiang
- Analysis and Testing Center, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China
| | - Hongmin Li
- Analysis and Testing Center, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China
| | - Xiaoling Luo
- Analysis and Testing Center, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China.,State Key Laboratory of Sheep Genetic Improvement & Healthy Breeding, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China
| | - Ruifeng Luo
- Analysis and Testing Center, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China
| | - Chunxia Lu
- Analysis and Testing Center, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China
| | - Xiayu Peng
- State Key Laboratory of Sheep Genetic Improvement & Healthy Breeding, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, Xinjiang, 832000, China.
| |
Collapse
|
72
|
Donor/acceptor nanoparticle pair-based singlet oxygen channeling homogenous chemiluminescence immunoassay for quantitative determination of bisphenol A. Anal Bioanal Chem 2016; 408:8795-8804. [DOI: 10.1007/s00216-016-9584-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 04/06/2016] [Accepted: 04/19/2016] [Indexed: 01/04/2023]
|
73
|
Vitku J, Heracek J, Sosvorova L, Hampl R, Chlupacova T, Hill M, Sobotka V, Bicikova M, Starka L. Associations of bisphenol A and polychlorinated biphenyls with spermatogenesis and steroidogenesis in two biological fluids from men attending an infertility clinic. ENVIRONMENT INTERNATIONAL 2016; 89-90:166-173. [PMID: 26863184 DOI: 10.1016/j.envint.2016.01.021] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/06/2016] [Accepted: 01/26/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND In the testis, steroid hormones play an important role in spermatogenesis, the production of semen, and the maintenance of secondary sex characteristics and libido. They may also play a role as a target for substances called endocrine disruptors (EDs). As yet, however, no complex study has been conducted evaluating the relationships between EDs and the steroid spectrum in the plasma and seminal plasma. OBJECTIVES To shed more light into mechanisms of EDs and the effects of bisphenol A (BPA) and polychlorinated biphenyls (PCBs) on human spermatogenesis and steroidogenesis. METHODS We determined BPA and 11 steroids in the plasma and seminal plasma of 191 men with different degrees of fertility, using a newly developed liquid-chromatography mass spectrometry method. Concurrently, plasma levels of 6 congeners of PCBs, gonadotropins, selenium, zinc and homocysteine were measured. Partial correlations adjusted for age, BMI and abstinence time were performed to evaluate relationships between these analytes. RESULTS Seminal BPA, but not plasma BPA, was negatively associated with sperm concentration (r=-0.198; p=0.009), sperm count (r=-0.178; p=0.018) and morphology (r=-0.160; p=0.044). Divergent and sometimes opposing associations of steroids and BPA were found in both body fluids. The sum of PCB congeners was negatively associated with testosterone, free testosterone, the free androgen index and dihydrotestosterone in plasma. CONCLUSION BPA may negatively contribute to the final state of sperm quality. Moreover, our data indicate that BPA influences human gonadal and adrenal steroidogenesis at various steps. Environmental levels of PCBs negatively correlated with androgen levels, but surprisingly without negative effects on sperm quality.
Collapse
Affiliation(s)
- Jana Vitku
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic.
| | - Jiri Heracek
- Department of Urology, First Faculty of Medicine, Charles University in Prague, Czech Republic; Department of Urology, Military University Hospital Prague, Czech Republic
| | - Lucie Sosvorova
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic
| | - Richard Hampl
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic
| | - Tereza Chlupacova
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic
| | - Martin Hill
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic
| | - Vladimir Sobotka
- Department of Urology, Third Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Marie Bicikova
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic
| | - Luboslav Starka
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic
| |
Collapse
|
74
|
Kubička L, Starostová Z, Kratochvíl L. Endogenous control of sexual size dimorphism: Gonadal androgens have neither direct nor indirect effect on male growth in a Madagascar ground gecko (Paroedura picta). Gen Comp Endocrinol 2015; 224:273-7. [PMID: 26431613 DOI: 10.1016/j.ygcen.2015.09.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/07/2015] [Accepted: 09/26/2015] [Indexed: 10/23/2022]
Abstract
Changes in the effect of gonadal androgens on male growth are considered as a possible mechanism allowing shifts in magnitude and even direction of sexual size dimorphism in vertebrates, particularly squamate reptiles. Positive effects of gonadal androgens on male growth were found in several male-larger species of lizards. Contrastingly, we document that in the male-larger Madagascar ground gecko (Paroedura picta) gonadal androgens do not affect male growth under constant thermal conditions. However, the absence of a thermal gradient might prevent the potential indirect effect of gonadal androgens on growth via the influence of circulating hormones on an individual's thermoregulation and hence metabolic rate. In order to study this, we monitored the growth and body temperature of socially isolated sham-operated and castrated males of the same species in a thermal gradient. We also compared the oxygen consumption and activity between the treatment groups in the open field to test the effect of gonadal hormones on these traits potentially affecting growth. Even under a thermal gradient we found no effect of gonadal androgens on growth rate or final body dimensions. Castration also did not significantly affect oxygen consumption or activity in the open field test. Together with our previous findings, we can exclude both the direct effect of male gonadal androgens on the ontogeny of sexual size dimorphism via the influence on the growth axis, and the indirect influence of gonadal androgens acting on the ontogeny of SSD through the effect on thermoregulation, metabolic rate and activity.
Collapse
Affiliation(s)
- Lukáš Kubička
- Faculty of Science, Charles University in Prague, Department of Ecology, Viničná 7, 128 44 Praha 2, Czech Republic.
| | - Zuzana Starostová
- Faculty of Science, Charles University in Prague, Department of Zoology, Viničná 7, 128 44 Praha 2, Czech Republic
| | - Lukáš Kratochvíl
- Faculty of Science, Charles University in Prague, Department of Ecology, Viničná 7, 128 44 Praha 2, Czech Republic
| |
Collapse
|
75
|
Caron P, Turcotte V, Guillemette C. A chromatography/tandem mass spectrometry method for the simultaneous profiling of ten endogenous steroids, including progesterone, adrenal precursors, androgens and estrogens, using low serum volume. Steroids 2015; 104:16-24. [PMID: 26254607 DOI: 10.1016/j.steroids.2015.07.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 07/22/2015] [Accepted: 07/30/2015] [Indexed: 10/23/2022]
Abstract
Measurement of a large set of sex steroids in clinical epidemiology and laboratory research with reliable methods providing low quantification limits and using a limited volume of blood sample represents a significant challenge. We report a new validated gas chromatography selected reaction monitoring - tandem mass spectrometry assay (GC-MS/MS) for the simultaneous quantification of ten endogenous steroids including progesterone (PROG), dehydroepiandrosterone (DHEA), androstenediol (5-diol), androstenedione (4-dione), testosterone (T), dihydrotestosterone (DHT), androsterone (ADT), 5alpha-androstan-3beta-17beta-diol (3β-diol), estrone (E1) and estradiol (E2). After addition of stable isotope internal standards, the approach involved the combination of liquid-liquid extraction, derivatization and solid-phase extraction for injection into the GC system and multiple reaction monitoring (MRM). The method presents high reproducibility for all analytical parameters in 250 μl serum samples. The lower limit of quantification (LLOQ) were of 100 pg/ml for DHEA, 50 pg/ml for PROG, 5-diol, 4-dione and ADT, 30 pg/ml for T, 10 pg/ml for 3β-diol and DHT, 5 pg/ml for E1, and 1 pg/ml for E2. The applicability of the validated method to determine the concentrations of these 10 steroids was successfully tested on serum from men (n=15), premenopausal (n=10) and postmenopausal women (n=20), and is currently used for larger cancer-related epidemiology studies. One of the most considerable advantages over existing methods is the simultaneous determination of ten steroids in a limited volume of serum that will help conserve important clinical samples from existing biobanks.
Collapse
Affiliation(s)
- Patrick Caron
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center and Faculty of Pharmacy, Laval University, Québec, Canada
| | - Véronique Turcotte
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center and Faculty of Pharmacy, Laval University, Québec, Canada
| | - Chantal Guillemette
- Pharmacogenomics Laboratory, Centre Hospitalier Universitaire de Québec Research Center and Faculty of Pharmacy, Laval University, Québec, Canada.
| |
Collapse
|
76
|
Wang J, Cheng C, Yang Y. Determination of Estrogens in Milk Samples by Magnetic-Solid-Phase Extraction Technique Coupled With High-Performance Liquid Chromatography. J Food Sci 2015; 80:C2655-61. [DOI: 10.1111/1750-3841.13113] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 09/21/2015] [Indexed: 01/23/2023]
Affiliation(s)
- Juan Wang
- the Faculty of Life Science and Technology; Kunming Univ. of Science and Technology; Yunnan Province 650500 China
| | - Chunsheng Cheng
- Yunnan Province Food Safety Research Inst; Yunnan Province 650500 China
| | - Yaling Yang
- the Faculty of Life Science and Technology; Kunming Univ. of Science and Technology; Yunnan Province 650500 China
| |
Collapse
|
77
|
VITKU J, SOSVOROVA L, CHLUPACOVA T, HAMPL R, HILL M, SOBOTKA V, HERACEK J, BICIKOVA M, STARKA L. Differences in Bisphenol A and Estrogen Levels in the Plasma and Seminal Plasma of Men With Different Degrees of Infertility. Physiol Res 2015; 64:S303-11. [DOI: 10.33549/physiolres.933090] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The general population is potentially exposed to many chemicals that can affect the endocrine system. These substances are called endocrine disruptors (EDs), and among them bisphenol A (BPA) is one of the most widely used and well studied. Nonetheless, there are still no data on simultaneous measurements of various EDs along with steroids directly in the seminal fluid, where deleterious effects of EDs on spermatogenesis and steroidogenesis are assumed. We determined levels of BPA and 3 estrogens using LC-MS/MS in the plasma and seminal plasma of 174 men with different degrees of infertility. These men were divided according their spermiogram values into 4 groups: (1) healthy men, and (2) slightly, (3) moderate, and (4) severely infertile men. Estradiol levels differed across the groups and body fluids. Slightly infertile men have significantly higher BPA plasma and seminal plasma levels in comparison with healthy men (p<0.05 and p<0.01, respectively). Furthermore, seminal BPA, but not plasma BPA, was negatively associated with sperm concentration and total sperm count (–0.27; p<0.001 and –0.24; p<0.01, respectively). These findings point to the importance of seminal plasma in BPA research. Overall, a disruption of estrogen metabolism was observed together with a weak but significant impact of BPA on sperm count and concentration.
Collapse
Affiliation(s)
- J. VITKU
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic
| | | | | | | | | | | | | | | | | |
Collapse
|
78
|
Cortéjade A, Kiss A, Cren C, Vulliet E, Buleté A. Development of an analytical method for the targeted screening and multi-residue quantification of environmental contaminants in urine by liquid chromatography coupled to high resolution mass spectrometry for evaluation of human exposures. Talanta 2015; 146:694-706. [PMID: 26695319 DOI: 10.1016/j.talanta.2015.06.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 06/09/2015] [Accepted: 06/15/2015] [Indexed: 01/17/2023]
Abstract
The aim of this study was to develop an analytical method and contribute to the assessment of the Exposome. Thus, a targeted analysis of a wide range of contaminants in contact with humans on daily routines in urine was developed. The method focused on a list of 38 contaminants, including 12 pesticides, one metabolite of pesticide, seven veterinary drugs, five parabens, one UV filter, one plastic additive, two surfactants and nine substances found in different products present in the everyday human environment. These contaminants were analyzed by high performance liquid chromatography coupled to high resolution mass spectrometry (HPLC-HRMS) with a quadrupole-time-of-flight (QqToF) instrument from a raw urinary matrix. A validation according to the FDA guidelines was employed to evaluate the specificity, linear or quadratic curve fitting, inter- and intra-day precision, accuracy and limits of detection and quantification (LOQ). The developed analysis allows for the quantification of 23 contaminants in the urine samples, with the LOQs ranging between 4.3 ng.mL(-1) and 113.2 ng.mL(-1). This method was applied to 17 urine samples. Among the targeted contaminants, four compounds were detected in samples. One of the contaminants (tributyl phosphate) was detected below the LOQ. The three others (4-hydroxybenzoic acid, sodium dodecylbenzenesulfonate and O,O-diethyl thiophosphate potassium) were detected but did not fulfill the validation criteria for quantification. Among these four compounds, two of them were found in all samples: tributyl phosphate and the surfactant sodium dodecylbenzenesulfonate.
Collapse
Affiliation(s)
- A Cortéjade
- Université de Lyon, Institut des Sciences Analytiques, UMR5280 CNRS, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - A Kiss
- Université de Lyon, Institut des Sciences Analytiques, UMR5280 CNRS, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - C Cren
- Université de Lyon, Institut des Sciences Analytiques, UMR5280 CNRS, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - E Vulliet
- Université de Lyon, Institut des Sciences Analytiques, UMR5280 CNRS, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - A Buleté
- Université de Lyon, Institut des Sciences Analytiques, UMR5280 CNRS, Université Lyon 1, ENS-Lyon, 5 rue de la Doua, 69100 Villeurbanne, France.
| |
Collapse
|