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Protective Effect of Lactobacillus rhamnosus GG on TiO 2 Nanoparticles-Induced Oxidative Stress Damage in the Liver of Young Rats. NANOMATERIALS 2021; 11:nano11030803. [PMID: 33801059 PMCID: PMC8004042 DOI: 10.3390/nano11030803] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/13/2021] [Accepted: 03/18/2021] [Indexed: 12/17/2022]
Abstract
The potential toxicity of titanium dioxide nanoparticles (TiO2 NPs) to mammals has become a widespread concern. Young individuals exposed to TiO2 NPs have a higher risk than adults. In this study, the protective effects of Lactobacillus rhamnosus GG (LGG) on liver toxicity in young rats induced by TiO2 NPs were explored. Results show that the four-week-old rats that underwent LGG after the oral intake of TiO2 NPs could prevent weight loss, reduce hematological indicators (WBC and NEUT) and serum biochemical indicators (AST, ALT, AST/ALT, and ALP). Moreover, it alleviated the pathological damage of the liver (as indicated by the disordered hepatocytes, more eosinophilic, ballooning degeneration, and accompany with blood cells), but it did not reduce the Ti contents in the liver. In addition, RT-qPCR results indicated that LGG restored the expression of anti-oxidative stress-related genes, such as SOD1, SOD2, CAT, HO-1, GSH, GCLC, and GCLM in the liver. In summary, the hepatotoxicity of TiO2 NPs in young rats is closely related to oxidative stress, and the antioxidant effect of LGG might protect the harmful effects caused by TiO2 NPs.
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Du C, Lv T, Liu Q, Cheng Y, Liu C, Han M, Zhang W, Qian H. Carotenoids in Sporidiobolus pararoseus ameliorate diabetic nephropathy in mice through attenuating oxidative stress. Biol Chem 2021; 402:785-794. [PMID: 33713590 DOI: 10.1515/hsz-2021-0127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/02/2021] [Indexed: 11/15/2022]
Abstract
Diabetic nephropathy (DN) is the major life-threatening complication of diabetes, and oxidative stress takes part in its initiation and development. This study was performed to evaluate the effects of carotenoids from Sporidiobolus pararoseus (CSP) on the renal function and oxidative stress status of mice with streptozotocin (STZ)-induced DN. The results indicated that CSP significantly attenuated symptoms of STZ-induced DN shown by decreased fasting blood glucose, reduced urine volume, urine albumin, serum creatinine and serum urea nitrogen, and improved kidney histological morphology. Furthermore, biochemical analysis of serum and kidney revealed a marked increase in oxidative stress of DN mice as evidenced by reduced total antioxidant capacity (T-AOC), decreased activity of antioxidant enzyme -superoxide dismutase (SOD) and increased level of malondialdehyde (MDA). However, treatment with CSP improved oxidative stress status in DN mice as compared with the mice in model group. Exploration of the potential mechanism validated that CSP ameliorated the oxidative stress status in DN mice by activating the expressions of Nrf2, NQO-1, HO-1, GST and CAT in kidney. These data revealed that CSP may retard the progression of DN by ameliorating renal function, improving the oxidative stress status and activating the Nrf2/ARE pathway.
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Affiliation(s)
- Chao Du
- School of Food Engineering, Ludong University, 186 Middle Hongqi Road, Yantai264025, Shandong Province, P. R. China.,BioNanotechnology Institute, Ludong University, 186 Middle Hongqi Road, Yantai264025, Shandong Province, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - Tianqi Lv
- School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - Quanwen Liu
- School of Food Engineering, Ludong University, 186 Middle Hongqi Road, Yantai264025, Shandong Province, P. R. China.,BioNanotechnology Institute, Ludong University, 186 Middle Hongqi Road, Yantai264025, Shandong Province, P. R. China
| | - Yuliang Cheng
- School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - Chang Liu
- School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - Mei Han
- School of Biotechnology, Jiangnan University, Wuxi, P. R. China
| | - Weiguo Zhang
- School of Biotechnology, Jiangnan University, Wuxi, P. R. China
| | - He Qian
- School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, 1800 Lihu Avenue, Wuxi214122, Jiangsu Province, P. R. China
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Stable Colonization of Orally Administered Lactobacillus casei SY13 Alters the Gut Microbiota. BIOMED RESEARCH INTERNATIONAL 2020; 2020:5281639. [PMID: 32104695 PMCID: PMC7040389 DOI: 10.1155/2020/5281639] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/08/2020] [Indexed: 01/23/2023]
Abstract
The gut microbiota plays an important role in intestinal health. Probiotics such as Lactobacillus are known to regulate gut microbes and prevent diseases. However, most of them are unable to colonize their stability in hosts' intestinal tracts. In this study, we investigated the ability of Lactobacillus casei SY13 (SY13) to colonize the intestinal tract of BALB/c mice, after its oral administration for a short-term (once for a day) and long-term (once daily for 27 days) duration. Furthermore, we also evaluated the influence of its administration on the gut microbial structure and diversity in mice. Male BALB/c mice were gavaged with 108 colony-forming units (CFU) of SY13, and TaqMan-MGB probe and Illumina MiSeq sequencing were performed to assess the colonization ability and bacterial community structure in the cecum contents. The results showed that long-term treatment with SY13 enhanced its ability to form a colony in the intestine tract in contrast to the short-term treatment group, whose colony was retained for only 3 days. Oral administration of SY13 also significantly enhanced the gut microbial diversity. Short-term treatment with SY13 (SSY13) elevated Firmicutes and diminished Bacteroidetes phyla compared with long-term treatment (LSY13) and controls. The findings laid the foundation for the study of probiotic colonization ability and improvement of microbiota for the prevention of gut diseases.
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