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Fometu SS, Ma Q, Wang J, Guo J, Ma L, Wu G. Biological Effect Evaluation of Different Sized Titanium Dioxide Nanoparticles Using Bombyx mori (Silkworm) as a Model Animal. Biol Trace Elem Res 2022; 200:5260-5272. [PMID: 34997532 DOI: 10.1007/s12011-021-03086-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/23/2021] [Indexed: 11/02/2022]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are widely used in various disciplines, and it is imperative to evaluate their safety in the environment. In this paper, Bombyx mori (silkworm) was used as a model organism to evaluate the biological effects of different sized TiO2 NPs, taking into consideration their effect on the larval growth, cocoon shell weight, tissues, and silk produced. The effect of the different sized TiO2 NPs on the larval and cocoon shell weight was dose-dependent. The highest accumulation of titanium (Ti) following a modified TiO2 NPs-treated mulberry diet was observed in the midgut. The expression of the light chain fibroin (FIBL) was three times higher in 0.33 g TiO2 NPs-treated silk gland after 96 h. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) analysis demonstrated that TiO2 NPs-treated silk fiber (TiSF) exhibited a diminutive decrease in silk fiber (SF) crystallization and β-sheet compared to the control SF, respectively. The tensile tests of SF from silkworm fed with 0.03 g of 25 nm TiO2 NPs were significantly improved when compared to the control SF. Significant changes in the surface morphology and thermal stability of SF were observed. The antimicrobial activity of TiSF was investigated against Pseudomonas aeruginosa and Staphylococcus aureus, with ciprofloxacin-treated SF acting as a control. It was documented that 0.09 g of 60 nm TiSF was most effective against P. aeruginosa at a zone of inhibition (ZOI) of 21.06 mm when compared with the control SF which recorded a ZOI of 17.19 mm. This study highlighted a different approach in evaluating the biological effects of TiO2 NPs using the silkworm as a model and assessing their impact on the silk intrinsic property, which will be effective in biotechnology applications.
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Affiliation(s)
- Sandra Senyo Fometu
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, People's Republic of China
- Biofuels Institute, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Qiang Ma
- College of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, People's Republic of China
| | - JinJin Wang
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, People's Republic of China
| | - Jianjun Guo
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, People's Republic of China
- College of Agriculture, Anshun University, Anshun, 561000, People's Republic of China
| | - Lin Ma
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, People's Republic of China
| | - Guohua Wu
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, People's Republic of China.
- College of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, People's Republic of China.
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Fometu SS, Wu G, Ma L, Davids JS. A review on the biological effects of nanomaterials on silkworm ( Bombyx mori). BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2021; 12:190-202. [PMID: 33614385 PMCID: PMC7884877 DOI: 10.3762/bjnano.12.15] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
The production of high-quality silkworm silk is of importance in sericulture in addition to the production of biomass, silk proteins, and animal feed. The distinctive properties of nanomaterials have the potential to improve the development of various sectors including medicine, cosmetics, and agriculture. The application of nanotechnology in sericulture not only improves the survival rate of the silkworm, promotes the growth and development of silkworm, but also improves the quality of silk fiber. Despite the positive contributions of nanomaterials, there are a few concerns regarding the safety of their application to the environment, in humans, and in experimental models. Some studies have shown that some nanomaterials exhibit toxicity to tissues and organs of the silkworm, while other nanomaterials exhibit therapeutic properties. This review summarizes some reports on the biological effects of nanomaterials on silkworm and how the application of nanomaterials improves sericulture.
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Affiliation(s)
- Sandra Senyo Fometu
- School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
| | - Guohua Wu
- School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212018, PR China
| | - Lin Ma
- School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
| | - Joan Shine Davids
- School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
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Wu W, Qiu C, Feng X, Tao X, Zhu Q, Chen Z, Ma X, Yang J, Bao X. Protective Effect of Paeoniflorin on Acute Cerebral Infarction in Rats. Curr Pharm Biotechnol 2020; 21:702-709. [PMID: 31884927 DOI: 10.2174/1389201021666191224151634] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/19/2019] [Accepted: 12/05/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The purpose of this paper was to study the protective effect of paeoniflorin on acute cerebral ischemia. The animal model of cerebral infarction induced by Middle Cerebral Artery Occlusion (MCAO) was blocked by the suture method. Sixty SD rats were randomly divided into the shame group, MCAO group, paeoniflorin (60, 120, 240 mg/kg, respectively) and Nimodipine (NMDP) group (n = 10 per group). METHODS The rats were intragastrically administered immediately after the operation. After 7 days of gavage, the brains were decapitated at 24 h. Hematoxylin and Eosin (HE) staining was used to observe the degree of cell damage in the cerebral cortex of rats. Immunohistochemistry was used to detect silver plating and to observe changes in nerve cells. Rats in the model group showed obvious symptoms of neurological deficits, such as the ischemic morphological changed, the Malondialdehyde (MDA), Lactate Dehydrogenase (LD) content and lactate dehydrogenase (LDH) activity were significantly increased in the ischemic brain tissue, while the Superoxide Dismutase (SOD) activity was decreased. RESULTS The decrease in Na+-K+-ATPase activity was significantly lower than that in the sham group. The neurological symptoms and signs of MCAO in the different doses of paeoniflorin group were improved, and the neuronal edema in the cortical area was alleviated. The activities of SOD, LDH and Na+-K+-ATPase were significantly increased, and the contents of MDA and LD were decreased. CONCLUSION Therefore, paeoniflorin could alleviate the degree of tissue damage in rats with acute cerebral infarction, inhabit the formation of free radicals in the brain tissue after ischemia, and reduce the degree of lipid peroxidation. Thus, the degree of cell damage was reduced greatly and a protective effect was showed on cerebral ischemia.
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Affiliation(s)
- Weilin Wu
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
| | - Chenfeng Qiu
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
| | - Xuewen Feng
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
| | - Xiaoxiao Tao
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
| | - Qian Zhu
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
| | - Zhengjun Chen
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
| | - Xiaomin Ma
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
| | - Jinwei Yang
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
| | - Xianjun Bao
- Department of Neurology, Wenling Hospital Affiliated to Wenzhou Medical University, Wenling City, Zhejiang Province, 317500, China
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Younes NRB, Amara S, Mrad I, Ben-Slama I, Jeljeli M, Omri K, El Ghoul J, El Mir L, Rhouma KB, Abdelmelek H, Sakly M. Subacute toxicity of titanium dioxide (TiO2) nanoparticles in male rats: emotional behavior and pathophysiological examination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:8728-37. [PMID: 25572266 DOI: 10.1007/s11356-014-4002-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 11/23/2014] [Indexed: 04/16/2023]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) have a wide range of applications in many fields (paint, industry, medicine, additives in food colorants, and nutritional products). Over the past decade research, TiO2 NPs have been focused on the potential toxic effects of these useful materials. In the present study, we investigated the effects of subacute exposure to TiO2 NPs on emotional behavior in adult Wistar rats, the biochemical parameters, and the histology of organs. Animals were injected intraperitoneally (ip) with TiO2 NPs (20 mg/kg body weight) every 2 days for 20 days. The elevated plus-maze test showed that subacute TiO2 NPs treatment increased significantly the anxious index (AI) compared to control group. The toxicological parameters were assessed 24 h and 14 days after the last injection of TiO2 NPs. Subacute exposure to nanoparticles increased the AST/ALT enzyme ratio and LDH activity. However, the blood cell count remained unchanged, except the platelet count increase. Histological examination showed a little inflammation overall. Moreover, our results provide strong evidence that the TiO2 NPs can induce the liver pathological changes of rats. The intraperitoneal injection of TiO2 NPs increased the accumulation of titanium in the liver, lung, and the brain. The results suggest that TiO2 NPs could alter the neurobehavioral performance of adult Wistar rats and promotes alterations in hepatic tissues.
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Affiliation(s)
- Naima Rihane Ben Younes
- Laboratory of Integrated Physiology, Faculty of Science of Bizerte, Carthage University, 7021, Jarzouna, Tunisia
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Feng X, Chen A, Zhang Y, Wang J, Shao L, Wei L. Application of dental nanomaterials: potential toxicity to the central nervous system. Int J Nanomedicine 2015; 10:3547-65. [PMID: 25999717 PMCID: PMC4437601 DOI: 10.2147/ijn.s79892] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Nanomaterials are defined as materials with one or more external dimensions with a size of 1-100 nm. Such materials possess typical nanostructure-dependent properties (eg, chemical, biological, optical, mechanical, and magnetic), which may differ greatly from the properties of their bulk counterparts. In recent years, nanomaterials have been widely used in the production of dental materials, particularly in light polymerization composite resins and bonding systems, coating materials for dental implants, bioceramics, endodontic sealers, and mouthwashes. However, the dental applications of nanomaterials yield not only a significant improvement in clinical treatments but also growing concerns regarding their biosecurity. The brain is well protected by the blood-brain barrier (BBB), which separates the blood from the cerebral parenchyma. However, in recent years, many studies have found that nanoparticles (NPs), including nanocarriers, can transport through the BBB and locate in the central nervous system (CNS). Because the CNS may be a potential target organ of the nanomaterials, it is essential to determine the neurotoxic effects of NPs. In this review, possible dental nanomaterials and their pathways into the CNS are discussed, as well as related neurotoxicity effects underlying the in vitro and in vivo studies. Finally, we analyze the limitations of the current testing methods on the toxicological effects of nanomaterials. This review contributes to a better understanding of the nano-related risks to the CNS as well as the further development of safety assessment systems.
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Affiliation(s)
- Xiaoli Feng
- Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Aijie Chen
- Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yanli Zhang
- Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Jianfeng Wang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Longquan Shao
- Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Limin Wei
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People's Republic of China
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