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Wang K, Bao G, Fan Q, Zhu L, Yang L, Liu T, Zhang Z, Li G, Chen X, Xu X, Xu X, He B, Zheng Y. Feasibility evaluation of a Cu-38 Zn alloy for intrauterine devices: In vitro and in vivo studies. Acta Biomater 2022; 138:561-575. [PMID: 34774783 DOI: 10.1016/j.actbio.2021.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/29/2021] [Accepted: 11/04/2021] [Indexed: 11/01/2022]
Abstract
The existing adverse effects of copper in copper-containing intrauterine devices (Cu-IUDs) have raised concerns regarding their use. These adverse effects include burst release of cupric ions (Cu2+) at the initial stage and an increasingly rough surface of the Cu-IUDs. In this study, we investigated the use of two copper alloys, Cu-38 Zn and H62 as the new upgrading or alternative material for IUDs. Their corrosive properties were studied in simulated uterine fluid (SUF) by using electrochemical methods, with pure Cu as a control. We studied the in vitro long-term corrosion behaviors in SUF, cytotoxicity to uterine cells (human endometrial epithelial cells and human endometrial stromal cells), in vivo biocompatibility and contraceptive efficacy of pure Cu, H62, and Cu-38 Zn. In the first month, the burst release rate of Cu2+ in the Cu-38 Zn group was significantly lower than those in the pure Cu and H62 groups. The in vitro cytocompatibility Cu-38 Zn was better than that of pure Cu and H62. Moreover, Cu-38 Zn showed improved tissue biocompatibility in vivo experiments. Therefore, the contraceptive efficacy of the Cu-38 Zn is still maintained as high as the pure Cu while the adverse effects are significantly eased, suggesting that Cu-38 Zn can be a suitable potential candidate material for IUDs. STATEMENT OF SIGNIFICANCE: The existing adverse effects associated with the intrinsic properties of copper materials for copper-containing intrauterine devices (Cu-IUD) are of concern in their employment. Such as, burst release of cupric ions (Cu2+) at the initial stage and an increasingly rough surface of the Cu-IUD. In this work, Cu alloyed with a high amount of bioactive Zn was used for a Cu-IUD. The Cu-38 Zn alloy exhibited reduced burst release of Cu2+ within the first month compared with the pure Cu and H62. Furthermore, the Cu-38 Zn alloy displayed significantly improved biocompatibility and a much smoother surface. Therefore, high antifertility efficacy of the Cu-38 Zn alloy was well maintained, while the adverse effects are significantly eased, suggesting that the Cu-38 Zn alloy is promising for a Cu-IUD.
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Natural Sources and Applications of Demineralized Bone Matrix in the Field of Bone and Cartilage Tissue Engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1249:3-14. [DOI: 10.1007/978-981-15-3258-0_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Hu S, Wang Y, Ke D, Zhou F, Cheng G, Xia W, Zhu C. Antifertility effectiveness of a novel copper-containing intrauterine device material and its influence on the endometrial environment in rats. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:444-455. [DOI: 10.1016/j.msec.2018.04.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 03/30/2018] [Accepted: 04/11/2018] [Indexed: 11/24/2022]
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Yang J, Hu S, Rao M, Hu L, Lei H, Wu Y, Wang Y, Ke D, Xia W, Zhu CH. Copper nanoparticle-induced ovarian injury, follicular atresia, apoptosis, and gene expression alterations in female rats. Int J Nanomedicine 2017; 12:5959-5971. [PMID: 28860760 PMCID: PMC5571856 DOI: 10.2147/ijn.s139215] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Numerous studies have reported the accumulation of copper nanoparticles (Cu NPs) in organs and the corresponding damage, although whether Cu NPs can be translocated to the ovaries and their ovarian toxicity are still unknown. In this study, three groups of female rats were injected with 3.12, 6.25, or 12.5 mg/kg Cu NPs for 14 consecutive days. The pathological changes, hormone levels, apoptosis and apoptotic proteins, oxidative stress, and gene expression characteristics in the ovaries were then investigated. The results demonstrated that the Cu NPs exhibited obvious accumulation in the rat ovaries, leading to ovarian injury, an imbalance of sex hormones, and ovarian cell apoptosis. Cu NP exposure activated caspase 3, caspase 8, caspase 9, and tBid, decreased the protein levels of Bcl-2, increased the expression levels of the proteins Bax and cytochrome c, and promoted malondialdehyde (MDA) accumulation and superoxide dismutase (SOD) reduction. Furthermore, gene microarray analysis showed that Cu NPs (12.5 mg/kg/d) caused 321 differentially expressed genes. Of these, 180 and 141 genes were upregulated and downregulated, respectively. Hsd17b1, Hsd3b1, Hsd3b6, and Hsd3b were involved in steroid and hormone metabolism, whereas Mt3 and Cebpb were associated with apoptosis. Overall, these findings provide strong evidence that Cu NPs trigger both intrinsic and extrinsic apoptotic pathways and regulate key ovarian genes in oxidative stress-mediated ovarian dysfunction.
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Affiliation(s)
- Jing Yang
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
| | - Shifu Hu
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
| | - Meng Rao
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
| | - Lixia Hu
- Department of Histology and Embryology, Preclinical Medicine College, Xinxiang Medical University, Henan Province, Xinxiang
| | - Hui Lei
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
| | - Yanqing Wu
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
| | - Yingying Wang
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
| | - Dandan Ke
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
| | - Wei Xia
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei.,Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Chang-Hong Zhu
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei.,Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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Vetten MA, Yah CS, Singh T, Gulumian M. Challenges facing sterilization and depyrogenation of nanoparticles: effects on structural stability and biomedical applications. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:1391-9. [PMID: 24709329 DOI: 10.1016/j.nano.2014.03.017] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 03/01/2014] [Accepted: 03/29/2014] [Indexed: 12/17/2022]
Abstract
This review outlines and compares techniques that are currently available for the sterilization of nanoparticles and addresses the topic of endotoxin contamination. Several techniques are available for the removal of microbial contamination from nanoparticles developed for use in nanomedicine applications. These techniques include filtration, autoclaving and irradiation, as well as formaldehyde, ethylene oxide and gas plasma treatments. Of these sterilization methodologies, filtration may potentially remove microbial contamination without altering the physicochemical properties of the carrier nanoparticles, nor affecting their toxicity and functionality. However, no single process may be applied to all nanoparticle preparations and, therefore, it is recommended that each nanoparticle-drug system be validated on a case-by-case basis. From the clinical editor: This comprehensive review covers the currently available methods for removal of microbial contaminations from nanoparticles for nanomedicine applications. The review highlights the pros and cons of each available method. Authors conclude that there is no single best method and recommend a customized approach for each nanoparticle system.
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Affiliation(s)
- Melissa A Vetten
- Toxicology and Biochemistry Section, National Institute for Occupational Health, National Health Laboratory Services, Johannesburg, South Africa; Department of Molecular Medicine and Haematology, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.
| | - Clarence S Yah
- Human Sciences Research Council, Newton Park, South Africa; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Tanusha Singh
- Immunology and Microbiology Section, National Institute for Occupational Health, National Health Laboratory Services, Johannesburg, South Africa; Department of Immunology, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Mary Gulumian
- Toxicology and Biochemistry Section, National Institute for Occupational Health, National Health Laboratory Services, Johannesburg, South Africa; Department of Molecular Medicine and Haematology, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
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Xu XX, Ding MH, Zhang JX, Zheng W, Li L, Zheng YF. A novel copper/polydimethiylsiloxane nanocomposite for copper-containing intrauterine contraceptive devices. J Biomed Mater Res B Appl Biomater 2013; 101:1428-36. [DOI: 10.1002/jbm.b.32962] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 04/04/2013] [Accepted: 04/10/2013] [Indexed: 11/11/2022]
Affiliation(s)
- X. X. Xu
- Center for Biomedical Materials and Engineering, Harbin Engineering University; Harbin 150001 China
| | - M. H. Ding
- Center for Biomedical Materials and Engineering, Harbin Engineering University; Harbin 150001 China
| | - J. X. Zhang
- Center for Biomedical Materials and Engineering, Harbin Engineering University; Harbin 150001 China
| | - W. Zheng
- Center for Biomedical Materials and Engineering, Harbin Engineering University; Harbin 150001 China
| | - L. Li
- Center for Biomedical Materials and Engineering, Harbin Engineering University; Harbin 150001 China
| | - Y. F. Zheng
- Center for Biomedical Materials and Engineering, Harbin Engineering University; Harbin 150001 China
- Department of Materials Science and Engineering; College of Engineering, Peking University; Beijing 100871 China
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Qiu Y, Wang LG, Zhang MH, Zhang YP, Zhang AD, Yang DT. A new experimental three-dimensional, reticular intrauterine device (3-DRIUD) composed of nitinol and silicone rubber. Contraception 2012; 88:31-6. [PMID: 23218860 DOI: 10.1016/j.contraception.2012.10.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 10/25/2012] [Accepted: 10/26/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND The aim of this study was to explore a new three-dimensional, reticular intrauterine device (3-DRIUD) composed of nitinol and silicone rubber and to observe the contraceptive effect of the device in rats. STUDY DESIGN Two contraceptive experiments were performed. In the first, female rats underwent bilateral placement of a 20.0-35.0-mm 3-DRUID (experimental group, n=30) via an abdominal incision or a sham operation with no IUD (control group, n=30). Two weeks after the operation was performed, the rats from either group were caged together with male rats. The contraceptive effects of the 3-DRIUD were observed at 1 to 3 months postoperation, after which the 3-DRIUDs were removed. One month after this second operation, the rats from the two groups were again coupled with fertile male rats. In a second experiment, female rats underwent bilateral placement of a 10.0-mm 3-DRUID (n=5) via an abdominal incision or a two-dimensional IUD (2-DIUD, n=20) and mated 1 month after surgery. The single-pipeline IUD was placed in 10 rats, while the enfolded-pipeline IUD was placed in 10 different rats. RESULTS In the first experiment, none of the females in the experimental 3-DRIUD group became pregnant (0/30, 0%) after 3 months, compared to 28/30 (93.3%, p<.0001) rats in the control group. After the 3-DRIUDs were removed from the experimental group after 3 months, 27/30 (90%) became pregnant, compared with 29/30 (97%, p>.05). The litter size (mean±SD) did not differ between groups (10.9±1.5 3-DRUID, 11.2±1.1 control, p>.05). In the second experiment, five rats had a 10.0-mm 3-DRUID (which was one third the length of one uterine horn) inserted into the bilateral uterine horns, and three of the five rats became pregnant. All 20 rats were pregnant 1 month after the insertion of the 2-DIUD. Thus, the contraceptive rate for the 2-DIUD group was 0. CONCLUSIONS The primary contraceptive mechanism effect of the new 3-DRIUD in rodents appears to be a result of occupying physical space in the uterus.
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Affiliation(s)
- Yi Qiu
- Key Laboratory for Technique for Improving Birth Outcome, Shandong Provincial Institute of Science and Technology for Family Planning, 69 Yuhan Road Jinan, Shandong province, 250002, China.
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Effective inhibition of the early copper ion burst release with ultra-fine grained copper and single crystal copper for intrauterine device application. Acta Biomater 2012; 8:886-96. [PMID: 22040688 DOI: 10.1016/j.actbio.2011.10.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 09/08/2011] [Accepted: 10/13/2011] [Indexed: 11/24/2022]
Abstract
To solve the main problems of existing coarse grained copper (CG Cu) intrauterine devices (IUD)-namely burst release and a low transfer efficiency of the cupric ions during usage-ultra-fine grained copper (UFG Cu) and single crystal copper (SC Cu) have been investigated as potential substitutes. Their corrosion properties with CG Cu as a control have been studied in simulated uterine fluid (SUF) under different conditions using electrochemical measurement methods. Long-term immersion of UFG Cu, SC Cu and CG Cu samples in SUF at 37 °C have been studied for 300 days. A lower copper ion burst release and a higher efficiency release of cupric ions were observed for UFG Cu and SC Cu compared with CG Cu in the first month of immersion and 2 months later. The respective corrosion mechanisms for UFG Cu, SC Cu and CG Cu in SUF are proposed. In vitro biocompatibility tests show a better cellular response to UFG Cu and SC Cu than CG Cu. In terms of instantaneous corrosion behavior, long-term corrosion performance and in vitro biocompatibility, the three pure copper materials follow the order: UFG Cu>SC Cu>CG Cu, which indicates that UFG Cu could be the most suitable candidate material for intrauterine devices.
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