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Popiół J, Gunia-Krzyżak A, Słoczyńska K, Piska K, Kocot N, Żelaszczyk D, Krupa A, Wójcik-Pszczoła K, Marona H, Pękala E. In vitro safety evaluation of (6-methoxy-9-oxo-9 H-xanthen-2-yl)methyl ( E)-3-(2,4-dimethoxyphenyl)acrylate (K-116) - the novel potential UV filter designed by means of a double chromophore strategy. Xenobiotica 2024:1-13. [PMID: 38819995 DOI: 10.1080/00498254.2024.2363332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 05/30/2024] [Indexed: 06/02/2024]
Abstract
The use of topical photoprotection is necessary to reduce adverse effects caused by excessive exposure to ultraviolet radiation. Despite the high standards set for UV filters, many of them may contribute to the occurrence of adverse effects. The newly synthesised compound K-116, the (E)-cinnamoyl xanthone derivative, could be an alternative. We conducted extended in vitro safety evaluation of compound K-116. The research included assessment of irritation potential on skin tissue, evaluation of penetration through the epidermis, and assessment of phototoxicity, and mutagenicity. Additionally, the eco-safety of compound K-116 was evaluated, including an examination of its degradation pathway in the Cunninghamella echinulata model, as well as in silico simulation of the toxicity of both the parent compound and its degradation products. The research showed that compound K-116 tested in future application conditions is deprived of skin irritant potential additionally it does not penetrate through the epidermis. Results showed that K-116 concentrate is not phototoxic and not mutagenic. The eco-safety studies showed that it undergoes biodegradation in 27% in Cunninghamella echinulata model. The parent compound and formed metabolite are less toxic than reference UV filters (octinoxate and octocrylene).
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Affiliation(s)
- Justyna Popiół
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Agnieszka Gunia-Krzyżak
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Karolina Słoczyńska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Kamil Piska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Natalia Kocot
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
- Doctoral School of Medical and Health Sciences, Jagiellonian University, Kraków, Poland
| | - Dorota Żelaszczyk
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Anna Krupa
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Katarzyna Wójcik-Pszczoła
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Henryk Marona
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Elżbieta Pękala
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
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Birch MR, Johansen M, Skakkebæk NE, Andersson AM, Rehfeld A. In vitro investigation of endocrine disrupting effects of pesticides on Ca 2+-signaling in human sperm cells through actions on the sperm-specific and steroid-activated CatSper Ca 2+-channel. ENVIRONMENT INTERNATIONAL 2022; 167:107399. [PMID: 35853389 DOI: 10.1016/j.envint.2022.107399] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Ca2+-signaling controls sperm cell functions necessary for successful fertilization. Multiple endocrine disrupting chemicals have been found to interfere with normal Ca2+-signaling in human sperm cells through an activation of the sperm-specific CatSper Ca2+-channel, which is vital for normal male fertility. OBJECTIVES We investigated 53 pesticides for their ability to interfere with CatSper mediated Ca2+-signaling and function in human sperm cells. METHODS Effects of the pesticides on Ca2+-signaling in human sperm cells were evaluated using a Ca2+-fluorometric assay. Effects via CatSper were assessed using the specific CatSper inhibitor RU1968. Effects on human sperm function and viability were assessed using an image cytometry-based acrosome reaction assay and the modified Kremer's sperm-mucus penetration assay. RESULTS 28 of 53 pesticides were found to induce Ca2+-signals in human sperm cells at 10 µM. The majority of these 28 active pesticides induced Ca2+-signals through CatSper and interfered with subsequent Ca2+-signals induced by the two endogenous CatSper ligands progesterone and prostaglandin E1. Multiple active pesticides were found to affect Ca2+-mediated sperm functions and viability at 10 µM. Low nM dose mixtures of the active pesticides alone or in combination with other environmental chemicals were found to significantly induce Ca2+-signals and inhibit Ca2+-signals induced subsequently by progesterone and prostaglandin E1. CONCLUSIONS Our results show that pesticides, both alone and in low nM dose mixtures, interfere with normal Ca2+-signaling in human sperm cells in vitro in low nM concentrations. Biomonitoring of the active pesticides in relevant matrices such as blood and reproductive fluids is very limited and the effects of real time human pesticide exposure on human sperm cells and fertility thus remains largely unknown. To which extent human pesticide exposure affects the chances of a successful fertilization in humans in vivo needs further research.
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Affiliation(s)
- Michala R Birch
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Denmark
| | - Mathias Johansen
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Denmark
| | - Niels E Skakkebæk
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Denmark
| | - Anna-Maria Andersson
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Denmark
| | - Anders Rehfeld
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Denmark.
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Smarr MM, Kannan K, Sun L, Honda M, Wang W, Karthikraj R, Chen Z, Weck J, Buck Louis GM. Preconception seminal plasma concentrations of endocrine disrupting chemicals in relation to semen quality parameters among male partners planning for pregnancy. ENVIRONMENTAL RESEARCH 2018; 167:78-86. [PMID: 30014899 DOI: 10.1016/j.envres.2018.07.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/29/2018] [Accepted: 07/02/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Some non-persistent endocrine disruptors (EDCs) are adversely associated with semen quality and few studies have measured those EDCs in seminal plasma. OBJECTIVE To find an association between EDCs in seminal plasma and semen quality parameters. METHODS Five chemical classes of non-persistent EDCs were quantified in seminal plasma from 339 male partners who participated in a prospective pregnancy study. Bisphenols, benzophenone UV-filters, antimicrobials and phthalate diesters and their monoester metabolites were measured using high performance liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry. Semen samples underwent next day analysis using a standardized protocol for the quantification of 35 endpoints. Linear mixed-effects models of EDCs that were log transformed and rescaled by their standard deviations or dichotomized at the 75th percentile for each exposure and outcomes with covariate adjustment were performed. EDCs in seminal plasma were also assessed relative to clinical reference values of semen quality endpoints using logistic regression or generalized estimating equations. RESULTS The most consistent findings supporting adverse associations between seminal EDCs and semen quality were observed for some phthalate metabolites. For example, seminal plasma mono-ethyl, mono-n-butyl, mono-2-isobutyl and mono-benzyl phthalate concentrations were associated with decreased odds of having semen volume above clinical reference values (mEP: aOR=0.46; 95%CI= 0.32, 0.66; mBP: aOR=0.40; 95%CI= 0.28, 0.57; miBP: aOR=0.39; 95%CI= 0.27, 0.56), and mBzP: aOR= 0.34; 95%CI= 0.24, 0.49). CONCLUSIONS Environmentally relevant concentrations of specific phthalates in seminal plasma were associated with diminished semen volume, sperm motility, viability, and morphological alterations in sperm heads such that semen volume and sperm viability fall below reference values.
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Affiliation(s)
- Melissa M Smarr
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute for Child Health and Human Development, The National Institutes of Health, Bethesda, MD, USA; Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
| | - Kurunthachalam Kannan
- Wadsworth Center, New York State Department of Health, Albany, NY, USA; Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Albany, NY, USA
| | | | - Masato Honda
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Wei Wang
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | | | - Zhen Chen
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute for Child Health and Human Development, The National Institutes of Health, Bethesda, MD, USA
| | - Jennifer Weck
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute for Child Health and Human Development, The National Institutes of Health, Bethesda, MD, USA
| | - Germaine M Buck Louis
- Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute for Child Health and Human Development, The National Institutes of Health, Bethesda, MD, USA
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Yap FHX, Chua HC, Tait CP. Active sunscreen ingredients in Australia. Australas J Dermatol 2017; 58:e160-e170. [DOI: 10.1111/ajd.12597] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 11/06/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Francis HX Yap
- Department of Dermatology; Royal Perth Hospital; Perth Western Australia Australia
| | - Hock C Chua
- Department of Dermatology; Fiona Stanley Hospital; Perth Western Australia Australia
| | - Clare P Tait
- Department of Dermatology; Royal Perth Hospital; Perth Western Australia Australia
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Rehfeld A, Dissing S, Skakkebæk NE. Chemical UV Filters Mimic the Effect of Progesterone on Ca 2+ Signaling in Human Sperm Cells. Endocrinology 2016; 157:4297-4308. [PMID: 27583790 DOI: 10.1210/en.2016-1473] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Progesterone released by cumulus cells surrounding the egg induces a Ca2+ influx into human sperm cells via the cationic channel of sperm (CatSper) Ca2+ channel and controls multiple Ca2+-dependent responses essential for fertilization. We hypothesized that chemical UV filters may mimic the physiological action of progesterone on CatSper, thus affecting Ca2+ signaling in human sperm cells. We examined 29 UV filters allowed in sunscreens in the United States and/or the European Union for their ability to induce Ca2+ signals in human sperm by applying measurements of the intracellular free Ca2+ concentration. We found that 13 UV filters induced a significant Ca2+ signal at 10 μM. Nine UV filters induced Ca2+ signals primarily by activating the CatSper channel. The UV filters 3-benzylidene camphor (3-BC) and benzylidene camphor sulfonic acid competitively inhibited progesterone-induced Ca2+ signals. Dose-response relations for the UV filters showed that the Ca2+ signal-inducing effects began in the nanomolar-micromolar range. Single-cell Ca2+ measurements showed a Ca2+ signal-inducing effect of the most potent UV filter, 3-BC, at 10 nM. Finally, we demonstrated that the 13 UV filters acted additively in low-dose mixtures to induce Ca2+ signals. In conclusion, 13 of 29 examined UV filters (44%) induced Ca2+ signals in human sperm. Nine UV filters primarily activated CatSper and thereby mimicked the effect of progesterone. The UV filters 3-BC and benzylidene camphor sulfonic acid competitively inhibited progesterone-induced Ca2+ signals. In vivo exposure studies are needed to investigate whether UV filter exposure affects human fertility.
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Affiliation(s)
- A Rehfeld
- Department of Growth and Reproduction (A.R., N.E.S.), Copenhagen University Hospital, Rigshospitalet, Department of Cellular and Molecular Medicine (A.R., S.D.), Faculty of Health Sciences, University of Copenhagen, and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (A.R., N.E.S.), Rigshospitalet, University of Copenhagen, DK-2100, Copenhagen, Denmark
| | - S Dissing
- Department of Growth and Reproduction (A.R., N.E.S.), Copenhagen University Hospital, Rigshospitalet, Department of Cellular and Molecular Medicine (A.R., S.D.), Faculty of Health Sciences, University of Copenhagen, and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (A.R., N.E.S.), Rigshospitalet, University of Copenhagen, DK-2100, Copenhagen, Denmark
| | - N E Skakkebæk
- Department of Growth and Reproduction (A.R., N.E.S.), Copenhagen University Hospital, Rigshospitalet, Department of Cellular and Molecular Medicine (A.R., S.D.), Faculty of Health Sciences, University of Copenhagen, and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (A.R., N.E.S.), Rigshospitalet, University of Copenhagen, DK-2100, Copenhagen, Denmark
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Ekowati Y, Buttiglieri G, Ferrero G, Valle-Sistac J, Diaz-Cruz MS, Barceló D, Petrovic M, Villagrasa M, Kennedy MD, Rodríguez-Roda I. Occurrence of pharmaceuticals and UV filters in swimming pools and spas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:14431-14441. [PMID: 27068900 DOI: 10.1007/s11356-016-6560-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 03/24/2016] [Indexed: 06/05/2023]
Abstract
The occurrence of 32 pharmaceuticals and 14 UV filters in swimming pools and spas was studied. Fifty-one water samples were collected from 17 pools located in sport centres and hotels in Catalonia, Spain. The samples were analysed by liquid chromatography-tandem mass spectrometry. The pharmaceuticals atenolol, carbamazepine, hydrochlorothiazide, metronidazole, ofloxacin, sulfamethoxazole, acetaminophen, ibuprofen, ketoprofen and phenazone were measured in water samples at concentrations higher than their limit of quantification (LOQ). The highest concentration of any individual pharmaceutical was measured for the diuretic hydrochlorothiazide (904 ng/L). The most frequently detected pharmaceutical was carbamazepine, as it was observed in more than half of all the water samples measured (53 %, 27/51). The UV filters at concentrations higher than LOQ in water samples were BP1, BP2, BP3, BP8, THB, 4DHB, 4MBC, OD-PABA, 1HBT, MeBT and DMeBT. The highest concentration of UV filter observed was 4MBC (69.3 ng/L) while the most frequent UV filters in the samples were 1HBT (59 %, 30/51). The results also showed that pharmaceuticals and UV filters were most frequently found in spas. Finally, from a water treatment technology perspective, the lowest occurrence of pharmaceuticals was in the pools applying sand filters followed by disinfection by sodium hypochlorite, while the lowest occurrence of UV filters was in the pools applying coagulation, sand filtration, UV and salt electrolysis.
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Affiliation(s)
- Yuli Ekowati
- UNESCO-IHE, Institute for Water Education, Westvest 7, 2611, AX, Delft, Netherlands
| | - Gianluigi Buttiglieri
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, c/Emili Grahit 101, E17003, Girona, Spain
| | - Giuliana Ferrero
- UNESCO-IHE, Institute for Water Education, Westvest 7, 2611, AX, Delft, Netherlands.
| | - Jennifer Valle-Sistac
- Water and Soil Quality Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, E-08034, Barcelona, Spain
| | - M Silvía Diaz-Cruz
- Water and Soil Quality Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, E-08034, Barcelona, Spain
| | - Damià Barceló
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, c/Emili Grahit 101, E17003, Girona, Spain
- Water and Soil Quality Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, E-08034, Barcelona, Spain
| | - Mira Petrovic
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, c/Emili Grahit 101, E17003, Girona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010, Barcelona, Spain
| | - Marta Villagrasa
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, c/Emili Grahit 101, E17003, Girona, Spain
| | - Maria D Kennedy
- UNESCO-IHE, Institute for Water Education, Westvest 7, 2611, AX, Delft, Netherlands
- Delft University of Technology, Stevinweg 1, 2628, CN, Delft, Netherlands
| | - Ignasi Rodríguez-Roda
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, c/Emili Grahit 101, E17003, Girona, Spain
- Laboratory of Chemical and Environmental Engineering (LEQUIA), Institute of the Environment, University of Girona, E17071, Girona, Spain
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Iadarola P, Fumagalli M, Bardoni AM, Salvini R, Viglio S. Recent applications of CE- and HPLC-MS in the analysis of human fluids. Electrophoresis 2015; 37:212-30. [PMID: 26426542 DOI: 10.1002/elps.201500272] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 09/06/2015] [Accepted: 09/11/2015] [Indexed: 01/08/2023]
Abstract
The present review intends to cover the literature on the use of CE-/LC-MS for the analysis of human fluids, from 2010 until present. It has been planned to provide an overview of the most recent practical applications of these techniques to less extensively used human body fluids, including, bronchoalveolar lavage fluid, synovial fluid, nipple aspirate, tear fluid, breast fluid, amniotic fluid, and cerumen. Potential pitfalls related to fluid collection and sample preparation, with particular attention to sample clean-up procedures, and methods of analysis, from the research laboratory to a clinical setting will also be addressed. While being apparent that proteomics/metabolomics represent the most prominent approaches for global identification/quantification of putative biomarkers for a variety of human diseases, evidence is also provided of the suitability of these sophisticated techniques for the detection of heterogeneous components carried by these fluids.
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Affiliation(s)
- Paolo Iadarola
- Department of Biology and Biotechnologies "L. Spallanzani,", Biochemistry Unit, University of Pavia, Italy
| | - Marco Fumagalli
- Department of Biology and Biotechnologies "L. Spallanzani,", Biochemistry Unit, University of Pavia, Italy
| | - Anna Maria Bardoni
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Italy
| | - Roberta Salvini
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Italy
| | - Simona Viglio
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Italy
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Teo TLL, Coleman HM, Khan SJ. Chemical contaminants in swimming pools: Occurrence, implications and control. ENVIRONMENT INTERNATIONAL 2015; 76:16-31. [PMID: 25497109 DOI: 10.1016/j.envint.2014.11.012] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 11/13/2014] [Accepted: 11/17/2014] [Indexed: 06/04/2023]
Abstract
A range of trace chemical contaminants have been reported to occur in swimming pools. Current disinfection practices and monitoring of swimming pool water quality are aimed at preventing the spread of microbial infections and diseases. However, disinfection by-products (DBPs) are formed when the disinfectants used react with organic and inorganic matter in the pool. Additional chemicals may be present in swimming pools originating from anthropogenic sources (bodily excretions, lotions, cosmetics, etc.) or from the source water used where trace chemicals may already be present. DBPs have been the most widely investigated trace chemical contaminants, including trihalomethanes (THMs), haloacetic acids (HAAs), halobenzoquinones (HBQs), haloacetonitriles (HANs), halonitromethanes (HNMs), N-nitrosamines, nitrite, nitrates and chloramines. The presence and concentrations of these chemical contaminants are dependent upon several factors including the types of pools, types of disinfectants used, disinfectant dosages, bather loads, temperature and pH of swimming pool waters. Chemical constituents of personal care products (PCPs) such as parabens and ultraviolet (UV) filters from sunscreens have also been reported. By-products from reactions of these chemicals with disinfectants and UV irradiation have been reported and some may be more toxic than their parent compounds. There is evidence to suggest that exposure to some of these chemicals may lead to health risks. This paper provides a detailed review of various chemical contaminants reported in swimming pools. The concentrations of chemicals present in swimming pools may also provide an alternative indicator to swimming pool water quality, providing insights to contamination sources. Alternative treatment methods such as activated carbon filtration and advanced oxidation processes may be beneficial in improving swimming pool water quality.
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Affiliation(s)
- Tiffany L L Teo
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW 2052, Australia.
| | - Heather M Coleman
- Nanotechnology and Integrated BioEngineering Centre, School of Engineering, University of Ulster, Jordanstown, County Antrim BT37 0QB, Northern Ireland, United Kingdom.
| | - Stuart J Khan
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Kensington, NSW 2052, Australia.
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Hu X, Zheng Y, Wu G, Liu J, Chen J, Huang M, Zhou H, Wu L, Shen-Tu J. An Economical Online Solid-Phase Extraction LC-MS/MS Method for Quantifying Methylprednisolone. J Chromatogr Sci 2014; 53:1013-9. [PMID: 25404561 DOI: 10.1093/chromsci/bmu144] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Indexed: 11/14/2022]
Abstract
An economical, reproducible and automated online solid-phase extraction coupled with liquid chromatography-tandem mass spectrometry method was developed to quantify methylprednisolone in human plasma. The method was validated in terms of selectivity, precision/accuracy, process efficiency, stability, cartridge reproducibility and carryover studies. Sample pretreatment was performed by protein precipitation and elimination using methanol followed by water dilution. Then, the mixture was passed onto the HySphere C8 EC-SE online solid-phase extraction cartridge followed by the separation of the analytes on an Agilent Eclipse XDB column. Electrospray ionization in positive ion mode and multiple reaction monitoring were used to monitor the ion transitions at m/z 375.4/160.8 for methylprednisolone, and m/z 361.2/147.0 for prednisolone. The calibration curve ranged from 5.25 to 525 ng/mL. Meanwhile both the intra-day and inter-day precision values (relative standard deviation) were within 4.45%. The method which turns out to be less laborious, faster and lower consumable cost per sample has already been successfully applied to a pharmacokinetic study in which the oral administration of 16 mg methylprednisolone was conducted in Chinese volunteers.
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Affiliation(s)
- Xingjiang Hu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
| | - Yunliang Zheng
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
| | - Guolan Wu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
| | - Jian Liu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
| | - Junchun Chen
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
| | - Mingzhu Huang
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
| | - Huili Zhou
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
| | - Lihua Wu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
| | - Jianzhong Shen-Tu
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University, Hangzhou 310003, PR China
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Luque de Castro M, Delgado-Povedano M. Ultrasound: A subexploited tool for sample preparation in metabolomics. Anal Chim Acta 2014; 806:74-84. [DOI: 10.1016/j.aca.2013.10.053] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 10/24/2013] [Accepted: 10/28/2013] [Indexed: 12/01/2022]
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Chisvert A, León-González Z, Tarazona I, Salvador A, Giokas D. An overview of the analytical methods for the determination of organic ultraviolet filters in biological fluids and tissues. Anal Chim Acta 2012; 752:11-29. [DOI: 10.1016/j.aca.2012.08.051] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 08/10/2012] [Accepted: 08/29/2012] [Indexed: 11/28/2022]
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12
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Gago-Ferrero P, Díaz-Cruz MS, Barceló D. An overview of UV-absorbing compounds (organic UV filters) in aquatic biota. Anal Bioanal Chem 2012; 404:2597-610. [PMID: 22669305 DOI: 10.1007/s00216-012-6067-7] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 04/18/2012] [Accepted: 04/19/2012] [Indexed: 10/28/2022]
Abstract
The purpose of this article is to summarize biological monitoring information on UV-absorbing compounds, commonly referred as organic UV filters or sunscreen agents, in aquatic ecosystems. To date a limited range of species (macroinvertebrates, fish, and birds), habitats (lakes, rivers, and sea), and compounds (benzophenones and camphors) have been investigated. As a consequence there is not enough data enabling reliable understanding of the global distribution and effect of UV filters on ecosystems. Both liquid chromatography and gas chromatography coupled with mass spectrometry-based methods have been developed and applied to the trace analysis of these pollutants in biota, enabling the required selectivity and sensitivity. As expected, the most lipophilic compounds occur most frequently with concentrations up to 7112 ng g(-1) lipids in mussels and 3100 ng g(-1) lipids (homosalate) in fish. High concentrations have also been reported for 4-methylbenzilidenecamphor (up to 1800 ng g(-1) lipids) and octocrylene (2400 ng g(-1) lipids). Many fewer studies have evaluated the potential bioaccumulation and biomagnification of these compounds in both fresh and marine water and terrestrial food webs. Estimated biomagnification factors suggest biomagnification in predator-prey pairs, for example bird-fish and fish-invertebrates. Ecotoxicological data and preliminary environmental assessment of the risk of UV filters are also included and discussed.
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Affiliation(s)
- Pablo Gago-Ferrero
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, Spanish Council of Scientific Research, Barcelona, Spain
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