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Jesus ÉPSD, Figueirêdo LPD, Maia F, Martins R, Nilin J. Acute and chronic effects of innovative antifouling nanostructured biocides on a tropical marine microcrustacean. MARINE POLLUTION BULLETIN 2021; 164:111970. [PMID: 33517086 DOI: 10.1016/j.marpolbul.2021.111970] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
This study aimed to investigate the toxicity of innovative antifouling nanostructured biocides DCOIT and silver associated to silica nanocapsules (SiNC) on the tropical microcrustacean Mysidopsis juniae. The toxicity of the tested compounds can be summarized as follows (acute tests): DCOIT > SiNC-Ag > SiNC-DCOIT > SiNC-DCOIT-Ag > SiNC > Ag; (chronic tests): SiNC-Ag > SiNC-DCOIT-Ag > DCOIT > Ag > SiNC, although it was not possible to determine the chronic toxicity of SiNC-DCOIT. In general, our data demonstrated that mysids were more sensitive than most temperate species, and it was possible to conclude that the combination SiNC-DCOIT-Ag showed less acute toxicity in comparison to the isolated active compounds, reinforcing data obtained for species from temperate environments on the potential use of nanomaterial to reduce toxicity to non-target species. However, despite representing less risk to the environment, the compound SiNC-DCOIT-Ag is still very toxic to the non-target tropical mysid.
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Affiliation(s)
- Édipo Paixão Silva de Jesus
- Graduate Program in Ecology and Conservation, Federal University of Sergipe, Av. Marechal Rodon s/n, 49100-000, São Cristóvão, Sergipe, Brazil
| | - Lívia Pitombeira de Figueirêdo
- NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
| | - Frederico Maia
- Smallmatek - Small Materials and Technologies, Lda., Rua Canhas, 3810-075 Aveiro, Portugal
| | - Roberto Martins
- CESAM - Centre of Environmental and Marine Studies and Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Jeamylle Nilin
- Biology Institute, Federal University of Uberlândia, R. Ceará s/n Bloco 2D sala 28, 38405-302, Uberlândia, Minas Gerais, Brazil.
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Wada H, Oyama K, Kamae R, Masuda T, Kanemaru K, Yokoigawa K, Oyama Y. Zinc-dependent and independent actions of hydroxyhydroquinone on rat thymic lymphocytes. Drug Chem Toxicol 2018; 42:496-501. [PMID: 29421941 DOI: 10.1080/01480545.2018.1429462] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Coffee contains hydroxyhydroquinone (HHQ). HHQ is one of the by-products released during bean roasting. Therefore, it is important to elucidate the bioactivity of HHQ to predict its beneficial or adverse effects on humans. We studied zinc-dependent and independent actions of commercially procured synthetic HHQ in rat thymocytes using flow cytometric techniques with propidium iodide, FluoZin-3-AM, 5-chloromethylfluorescein diacetate, and annexin V-FITC. HHQ at 1050 µM elevated intracellular Zn2+ levels by releasing intracellular Zn2+. HHQ at 10 µM increased cellular thiol content in a zinc-dependent manner. However, HHQ at 30-50 µM reduced cellular thiol content. Although the latter actions of HHQ (30-50 µM) were suggested to increase cell vulnerability to oxidative stress, HHQ at 0.3-100 µM significantly protected cells against oxidative stress induced by H2O2. The process of cell death induced by H2O2 was delayed by HHQ, although both H2O2 and HHQ increased the population of annexin V-positive living cells. However, HHQ at 10-30 µM promoted cell death induced by A23187, a calcium ionophore. HHQ at 10-30 µM exerted contrasting effects on cell death caused by oxidative stress and Ca2+ overload. Because HHQ is considered to possess diverse cellular actions, coffee with reduced amount of HHQ may be preferable to avoid potential adverse effects.
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Affiliation(s)
- Honoka Wada
- a Faculty of Integrated Arts and Sciences , Tokushima University , Tokushima , Japan
| | - Keisuke Oyama
- b Intensive Care Unit , Osaka University Hospital , Suita , Japan
| | - Risa Kamae
- a Faculty of Integrated Arts and Sciences , Tokushima University , Tokushima , Japan
| | - Toshiya Masuda
- c Graduate School of Human Life Science , Osaka City University , Osaka , Japan
| | - Kaori Kanemaru
- a Faculty of Integrated Arts and Sciences , Tokushima University , Tokushima , Japan.,d Faculty of Bioscience and Bioindustry , Tokushima University , Tokushima, Japan
| | - Kumio Yokoigawa
- a Faculty of Integrated Arts and Sciences , Tokushima University , Tokushima , Japan.,d Faculty of Bioscience and Bioindustry , Tokushima University , Tokushima, Japan
| | - Yasuo Oyama
- a Faculty of Integrated Arts and Sciences , Tokushima University , Tokushima , Japan.,d Faculty of Bioscience and Bioindustry , Tokushima University , Tokushima, Japan
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Mitani T, Elmarhomy AIE, Dulamjav L, Anu E, Saitoh S, Ishida S, Oyama Y. Zinc-related actions of sublethal levels of benzalkonium chloride: Potentiation of benzalkonium cytotoxicity by zinc. Chem Biol Interact 2017; 268:31-36. [PMID: 28257953 DOI: 10.1016/j.cbi.2017.02.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 02/19/2017] [Accepted: 02/26/2017] [Indexed: 11/17/2022]
Abstract
Benzalkonium chloride (BZK) is a common preservative used in pharmaceutical and personal care products. ZnCl2 was recently reported to significantly potentiate the cytotoxicity of some biocidal compounds. In the present study, therefore, we compared the cytotoxic potency of BZK and then further studied the Zn2+-related actions of the most cytotoxic agent among BZK, using flow cytometric techniques with appropriate fluorescent probes in rat thymocytes. Cytotoxicity of benzylcetyldimethylammonium (BZK-C16) was more potent that those of benzyldodecyldimethylammonium and benzyldimethyltetradecylammonium. ZnCl2 (1-10 μM) significantly potentiated the cytotoxicity of BZK-C16 at a sublethal concentration (1 μM). The co-treatment of cells with 3 μM ZnCl2 and 1 μM BZK-C16 increased the population of both living cells with phosphatidylserine exposed on membrane surfaces and dead cells. BZK-C16 at 0.3-1.0 μM elevated intracellular Zn2+ levels by increasing Zn2+ influx, and augmented the cytotoxicity of 100 μM H2O2. Zn2+ is concluded to facilitate the toxicity of BZK. We suggest that the toxicity of BZK is determined after taking extracellular (plasma) and/or environmental Zn2+ levels into account.
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Affiliation(s)
- Tsuyoshi Mitani
- Faculty of Integrated Arts and Sciences, Tokushima University, Tokushima 770-8502, Japan
| | | | - Luvsandorj Dulamjav
- Graduate School of Integrated Arts and Sciences, Tokushima University, Tokushima 770-8502, Japan
| | - Enkhtumur Anu
- Graduate School of Integrated Arts and Sciences, Tokushima University, Tokushima 770-8502, Japan
| | - Shohei Saitoh
- Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Shiro Ishida
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 770-8512, Japan
| | - Yasuo Oyama
- Graduate School of Integrated Arts and Sciences, Tokushima University, Tokushima 770-8502, Japan; Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima 770-8513, Japan.
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Ishikawa M, Muraguchi R, Azuma A, Nawata S, Miya M, Katsuura T, Naito T, Oyama Y. Cytotoxic actions of 2,2-dibromo-3-nitrilopropionamide, a biocide in hydraulic fracturing fluids, on rat thymocytes. Toxicol Res (Camb) 2016; 5:1329-1334. [PMID: 30090437 DOI: 10.1039/c6tx00027d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 06/08/2016] [Indexed: 11/21/2022] Open
Abstract
2,2-Dibromo-3-nitrilopropionamide (DBNPA) is a major biocide in hydraulic fracturing fluids. Most biocides in fracturing fluids are considered to have low acute toxicity to mammals, but little information is available in the literature regarding the toxic actions of DBNPA on mammalian cells. This information is important to suggest the DBNPA toxicity on wild mammals. In this study, the effects of DBNPA on rat thymocytes were studied using flow cytometric techniques in order to further characterize the cytotoxicity of DBNPA for its safe use. DBNPA at 3-7.5 μM produced a steep concentration-dependent increase in cell lethality. At 5 μM, DBNPA significantly depolarized the membranes with a disturbance of the asymmetrical distribution of membrane phospholipids. The lethal effect of DBNPA was completely abolished under cold conditions, and was augmented in the presence of ethanol. It is suggested that the lethal action of DBNPA is linked to changes in membrane fluidity. Because the concentration-dependent change of DBNPA-induced lethal action was very steep under in vitro conditions, the adverse actions of DBNPA on wild mammals are concerning, even though such reports have not yet surfaced.
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Affiliation(s)
- Mizuki Ishikawa
- Graduate School of Integrated Arts and Sciences , Tokushima University , Tokushima 770-8502 , Japan . ; Tel: +81-88-656-7256
| | - Ryosuke Muraguchi
- Graduate School of Integrated Arts and Sciences , Tokushima University , Tokushima 770-8502 , Japan . ; Tel: +81-88-656-7256
| | - Ayako Azuma
- Graduate School of Integrated Arts and Sciences , Tokushima University , Tokushima 770-8502 , Japan . ; Tel: +81-88-656-7256
| | - Shogo Nawata
- Graduate School of Integrated Arts and Sciences , Tokushima University , Tokushima 770-8502 , Japan . ; Tel: +81-88-656-7256
| | - Mutsumi Miya
- Graduate School of Integrated Arts and Sciences , Tokushima University , Tokushima 770-8502 , Japan . ; Tel: +81-88-656-7256
| | - Tetsuya Katsuura
- Graduate School of Integrated Arts and Sciences , Tokushima University , Tokushima 770-8502 , Japan . ; Tel: +81-88-656-7256
| | - Tohru Naito
- Graduate School of Integrated Arts and Sciences , Tokushima University , Tokushima 770-8502 , Japan . ; Tel: +81-88-656-7256
| | - Yasuo Oyama
- Graduate School of Integrated Arts and Sciences , Tokushima University , Tokushima 770-8502 , Japan . ; Tel: +81-88-656-7256
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