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He J, Qi P, Zhang D, Zeng Y, Zhao P, Wang P. Determination of sulfide in complex biofilm matrices using silver-coated, 4-mercaptobenzonitrile-modified gold nanoparticles, encapsulated in ZIF-8 as surface-enhanced Raman scattering nanoprobe. Mikrochim Acta 2023; 190:475. [PMID: 37991569 DOI: 10.1007/s00604-023-06071-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 10/23/2023] [Indexed: 11/23/2023]
Abstract
A surface-enhanced Raman scattering nanoprobe has been developed for sulfide detection and applied to complex bacterial biofilms. The nanoprobe, Au@4-MBN@Ag@ZIF-8, comprised a gold core modified with 4-mercaptobenzonitrile (4-MBN) as signaling source, a layer of silver shell as the sulfide sensitization material, and a zeolitic imidazolate framework-8 (ZIF-8) as surface barrier. ZIF-8, with its high surface area and mesoporous structure, was applied to preconcentrate sulfide around the nanoprobe with its excellent adsorption capacity. Besides, the external wrapping of ZIF-8 can not only prevent the interference of biomolecules, such as proteins, with the Au@4-MBN@Ag assay but also enhance the detection specificity through the sulfide cleavage function towards ZIF-8. These properties are critical for the application of this nanoprobe to complex environmental scenarios. In the presence of sulfide, it was first enriched through adsorption by the outer ZIF-8 layer, then destroyed the barrier layer, and subsequently reacted with the Ag shell, leading to changes in the Raman signal. Through this rational design, the Au@4-MBN@Ag@ZIF-8 nanoprobe exhibited excellent detection sensitivity, with a sulfide detection limit in the nanomolar range and strong linearity in the concentration range 50 nM to 500 μM. Furthermore, the proposed Au@4-MBN@Ag@ZIF-8 nanoprobe was effectively utilized for sulfide detection in intricate biofilm matrices, demonstrating its robust selectivity and reproducibility.
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Affiliation(s)
- Junxian He
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China
- Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
- University of the Chinese Academy of Sciences, Beijing, 100039, China
| | - Peng Qi
- Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.
- University of the Chinese Academy of Sciences, Beijing, 100039, China.
| | - Dun Zhang
- Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
- University of the Chinese Academy of Sciences, Beijing, 100039, China
| | - Yan Zeng
- Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
- University of the Chinese Academy of Sciences, Beijing, 100039, China
| | - Ping Zhao
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China.
| | - Peng Wang
- Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China.
- University of the Chinese Academy of Sciences, Beijing, 100039, China.
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Meng M, Sun Y, Bai Y, Xu J, Sun J, Han L, Sun H, Han R. A polysaccharide from Pleurotus citrinopileatus mycelia enhances the immune response in cyclophosphamide-induced immunosuppressed mice via p62/Keap1/Nrf2 signal transduction pathway. Int J Biol Macromol 2023; 228:165-177. [PMID: 36543297 DOI: 10.1016/j.ijbiomac.2022.12.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/21/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
The manuscript aimed to study the immunoregulatory activity and the mechanism of the polysaccharide (CMP) from Pleurotus citrinopileatus mycelia. The mice were divided into normal group, model group, different dosage of CMP (50, 100 and 200 mg/kg, respectively) groups and levamisole hydrochloride treated group. The results showed that, compared with the model group, CMP could significantly improve the auricle swelling rate, half hemolysis value and phagocytic index in mice. The indices of immune organs were raised, and tissue damage of spleen was relieved. Splenic Th1 cells were decreased, while Th2 cells were increased, furthermore the proliferation of splenic lymphocytes and the cytotoxicity of NK cells were increased. The levels of interleukin-12 (IL-12), interferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α) in spleen were decreased, while interleukin-4 (IL-4) and interleukin-10 (IL-10) were increased. In serum and spleen, the levels of catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) activities were increased, while the level of malondialdehyde (MDA) was decreased. And the levels of Immunoglobulin were also increased. Western blot showed that CMP had immunoregulatory activity by activating Nrf2, Keap1, p62, HO-1, and NQO1 in the p62/Keap1/Nrf2 signaling pathway. The study proved that CMP could be used as a biological Immune regulating agent.
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Affiliation(s)
- Meng Meng
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Ying Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Yuhe Bai
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Jin Xu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Jingge Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Lirong Han
- Key Laboratory of Public Health Safety of Hebei Province, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, China
| | - Huiqing Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Ran Han
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China.
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3
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Yang P, Chen X, Tian X, Zhou Z, Zhang Y, Tang W, Fu K, Zhao J, Ruan Y. A Proteomic Study of the Effect of N-acetylcysteine on the Regulation of Early Pregnancy in Goats. Animals (Basel) 2022; 12:ani12182439. [PMID: 36139298 PMCID: PMC9495164 DOI: 10.3390/ani12182439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Early pregnancy regulation is an extremely complex process that is influenced by various factors. We previously mined the differentially expressed genes affected by N-acetyl-L-cysteine (NAC) in early pregnancy in goats via transcriptome sequencing. We found that NAC increased the number of lambs by affecting the immune pathway in ewes and enhancing antioxidation. Based on this, we here explored the effect of NAC on early pregnancy in goats at the protein level. The results showed a difference in the expression of uterine keratin and increases in the levels of antioxidant indices and hormones in doe serum. Abstract Dietary supplementation with N-acetyl-L-cysteine (NAC) may support early pregnancy regulation and fertility in female animals. The purpose of this study was to investigate the effect of supplementation with 0.07% NAC on the expression of the uterine keratin gene and protein in Qianbei-pockmarked goats during early pregnancy using tandem mass spectrometry (TMT) relative quantitative proteomics. The results showed that there were significant differences in uterine keratin expression between the experimental group (NAC group) and the control group on day 35 of gestation. A total of 6271 proteins were identified, 6258 of which were quantified by mass spectrometry. There were 125 differentially expressed proteins (DEPs), including 47 upregulated and 78 downregulated proteins, in the NAC group. Bioinformatic analysis showed that these DEPs were mainly involved in the transport and biosynthesis of organic matter and were related to the binding of transition metal ions, DNA and proteins and the catalytic activity of enzymes. They were enriched in the Jak-STAT signalling pathway, RNA monitoring pathway, amino acid biosynthesis, steroid biosynthesis and other pathways that may affect the early pregnancy status of does through different pathways and thus influence early embryonic development. Immunohistochemistry, real-time quantitative PCR and Western blotting were used to verify the expression and localization of glial fibrillary acidic protein (GFAP) and pelota mRNA surveillance and ribosomal rescue factor (PELO) in uterine horn tissue. The results showed that both PELO and GFAP were localized to endometrial and stromal cells, consistent with the mass spectrometry data at the transcriptional and translational levels. Moreover, NAC supplementation increased the levels of the reproductive hormones follicle-stimulating hormone (FSH), luteinizing hormone (LH), oestradiol (E2), progesterone (P4), superoxide dismutase (SOD), glutamate peroxidase (GSH-Px) and nitric oxide (NO) in the serum of does. These findings provide new insight into the mechanism by which NAC regulates early pregnancy and embryonic development in goats.
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Affiliation(s)
- Peifang Yang
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Xiang Chen
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
- Correspondence:
| | - Xingzhou Tian
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Zhinan Zhou
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Yan Zhang
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Wen Tang
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Kaibin Fu
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Jiafu Zhao
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Yong Ruan
- Key Laboratory of Plateau Mountain Animal Genetics, Breeding and Reproduction of Ministry of Education, Guiyang 550025, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang 550025, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
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Wang X, Sun Y, Fu Y, Wu H, Chen Y, Ye Y, Zhou Q, He L, Zhou E, Wang J, Yang Z. Lysine specific demethylase 1 inhibitor alleviated lipopolysaccharide/D-galactosamine-induced acute liver injury. Eur J Pharmacol 2022; 932:175227. [PMID: 36007605 DOI: 10.1016/j.ejphar.2022.175227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/08/2022] [Accepted: 08/17/2022] [Indexed: 11/19/2022]
Abstract
Acute liver injury is a severe clinical syndrome with markedly high mortality and poor prognosis. An accumulating body of evidence has demonstrated that epigenetic mechanisms have essential roles in the pathogenesis of acute liver injury. Lysine-specific demethylase 1 (LSD1) belongs to the amine oxidase superfamily of flavin adenine dinucleotide (FAD)-dependent enzymes, specifically demethylates H3 lysine 4. In the study, we investigated the effects and mechanisms of LSD1 in lipopolysaccharide (LPS)/D-Galactosamine (D-Gal)-induced acute liver injury in mice. Western blot analysis showed that LSD1 phosphorylation and di-methylated histone H3 on lysine 4 (H3K4me2) protein expression were significantly increased after LPS/D-Gal treatment (2.3 and 2.4 times higher than control respectively). GSK-LSD1 2HCl is an irreversible and selective LSD1 inhibitor. Pre-treatment with LSD1 inhibitor alleviated LPS/D-Gal-induced liver damage, decreased serum levels of alanine transaminase and aspartate aminotransferase in mice. Moreover, the LSD1 phosphorylation level in low, medium, and high LSD1 inhibitor groups was lower by a factor of 1.6, 1.9, and 2.0 from the LPS/D-Gal group, respectively. Mechanistically, LSD1 inhibitor further inhibited NF-κB signaling cascades and subsequently inhibited the production of pro-inflammatory cytokine TNF-α, IL-6, and IL-1β induced by LPS/D-Gal in liver tissues. Furthermore, LSD1 inhibitor upregulated the protein expression of Nrf2/HO-1 signaling pathways, and the activities of related antioxidant enzymes were enhanced. Collectively, our data demonstrated that LSD1 inhibitor protected against the LPS/D-Gal-induced acute liver injury via inhibiting inflammation and oxidative stress, and targeting the epigenetic marker may be a potent therapeutic strategy for acute liver injury.
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Affiliation(s)
- Xia Wang
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Youpeng Sun
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Yiwu Fu
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Hanpeng Wu
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Yichun Chen
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Yingrong Ye
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Qingqing Zhou
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Li He
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Ershun Zhou
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Jingjing Wang
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China.
| | - Zhengtao Yang
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong, 528231, People's Republic of China.
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Liu XL, Wang JT, Liu Y, Cui N, Wang DY, Zheng XQ. Conjugation of the glutelin hydrolysates-glucosamine by transglutaminase and functional properties and antioxidant activity of the products. Food Chem 2022; 380:132210. [DOI: 10.1016/j.foodchem.2022.132210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 01/18/2022] [Accepted: 01/18/2022] [Indexed: 11/04/2022]
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Mai B, Han L, Zhong J, Shu J, Cao Z, Fang J, Zhang X, Gao Z, Xiao F. Rhoifolin Alleviates Alcoholic Liver Disease In Vivo and In Vitro via Inhibition of the TLR4/NF-κB Signaling Pathway. Front Pharmacol 2022; 13:878898. [PMID: 35685625 PMCID: PMC9171502 DOI: 10.3389/fphar.2022.878898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/13/2022] [Indexed: 01/16/2023] Open
Abstract
Background: Alcoholic liver disease (ALD) is a common chronic liver disorder worldwide, which is detrimental to human health. A preliminary study showed that the total flavonoids within Citrus grandis “Tomentosa” exerted a remarkable effect on the treatment of experimental ALD. However, the active substances of Citrus grandis “Tomentosa” were not elucidated. Rhoifolin (ROF) is a flavonoid component present in high levels. Therefore, this research aimed to evaluate the hepatoprotective effects of ROF and its possible mechanisms. Methods: Molecular docking was performed to analyze the binding energy of ROF to the main target proteins related to ALD. Subsequently, mice were fed ethanol (ETH) for 49 days to establish the chronic alcoholic liver injury models. The liver pathological injury, serum aminotransferase levels, and oxidative stress levels in the liver tissue were measured. Human normal hepatocytes (LO2 cells) were incubated with ETH to construct the alcoholic liver cell model. The inflammatory markers and apoptosis factors were evaluated using real-time PCR and flow cytometry. Finally, the effects of ROF on the CYP2E1 and NF-κB signaling pathways were tested in vitro and in vivo. Results: Molecular docking results demonstrated that ROF was able to successfully dock with the target proteins associated with ALD. In animal studies, ROF attenuated ETH-induced liver damage in mice by decreasing the serum concentrations of AST and ALT, reducing the expression of inflammatory cytokines, and maintaining antioxidant balance in the liver tissue. The in vitro experiments demonstrated that ROF suppressed ETH-induced apoptosis in LO2 cells by promoting Bcl-2 mRNA and inhibiting Bax mRNA and caspase 3 protein expression. ROF decreased the level of LDH, ALT, AST, ROS, and MDA in the supernatant; induced the activity of GSH and SOD; and inhibited TNF-α, IL-6, and IL-1β expression levels. Mechanistically, ROF could significantly downregulate the expression levels of CYP2E1, TLR4, and NF-κB phosphorylation. Conclusion: This study indicates that ROF is the active component within the total flavonoids, which may alleviate ETH-induced liver injury by inhibiting NF-κB phosphorylation. Therefore, ROF may serve as a promising compound for treating ALD.
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Affiliation(s)
- Baoyu Mai
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ling Han
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
- Guangdong Provincial Clinical Medicine Research Center for Chinese Medicine Dermatology, Guangzhou, China
| | - Jiarui Zhong
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingqi Shu
- College of Acumox and Tuina, Jiangxi University of Chinese Medicine, Jiangxi, China
| | - Zelin Cao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
- Jiangsu Hengrui Medicine Co., Ltd., Jiangsu, China
| | - Jiaqi Fang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoying Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zelin Gao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fengxia Xiao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, China
- *Correspondence: Fengxia Xiao,
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Norgbey E, Li Y, Zhu Y, Nwankwegu AS, Bofah-Buah R, Nuamah L, Pu Y. Combined use of high-resolution dialysis, diffusive gradient in thin films (DGT) technique, and conventional methods to assess trace metals in reservoir sediments. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:469. [PMID: 34226963 DOI: 10.1007/s10661-021-09247-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
Recently, reservoirs in southern China are witnessing incidents involving black water, which are harmful to the aquatic ecosystem. This study unravels the cause of the black water events by studying the occurrence and the ecological risks of contaminants (Pb, Cu, Cd, Zn, Ni, TFe, Mn, S, P, and DOC) in sediments of Tianbao reservoir. Due to the significantly high concentration of TFe, Mn, and P in the sediments, the study further used the thin film diffusion gradient (DGT) technology and high-resolution dialysis method to investigate the movement of Fe2+, Mn2+, S2-, and reactive P within the sediments. The ecological risk assessment (threshold effect level and probable effect level) showed that the sediments had a low concentration of Pb, Cu, Cd, Zn, and Ni. High organic matter from the Eucalyptus plantation surrounding the reservoir, as well as the intense thermal stratification of the reservoir, caused the hypolimnion to be hypoxic (DO < 2 mg/L). The diffusion fluxes at the water-sediment boundary (WSB) demonstrated a significant movement of Fe2+, Mn2+, and PO43- from the sediments into the overlying water, while the movement of S2- was in both directions due to hypoxia. A high correlation Fe-DOC (r = 0.9), Fe-S (r = 0.8), and Mn-S (r = 0.7) and the redox interaction of Fe2+, Mn2+, S2-, P, and DOC at the hypoxic WSB caused the production of black substances in the hypolimnion contributing to the so-called black water reservoir.
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Affiliation(s)
- Eyram Norgbey
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Yiping Li
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Ya Zhu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Amechi S Nwankwegu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Robert Bofah-Buah
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Linda Nuamah
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Yashuai Pu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
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Xu J, Xu JJ, Lin Q, Jiang L, Zhang D, Li Z, Ma B, Zhang C, Li L, Kai D, Yu HD, Loh XJ. Lignin-Incorporated Nanogel Serving As an Antioxidant Biomaterial for Wound Healing. ACS APPLIED BIO MATERIALS 2021; 4:3-13. [PMID: 35014273 DOI: 10.1021/acsabm.0c00858] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Oxidative phosphorylation is an important biological process in the body to produce energy, during which oxygen free radicals are generated as byproduct. Excessive oxygen free radicals cause cell death and reduce the rate of tissue regeneration and healing in a wound. Lignin is a natural antioxidant derived from plants, but its biomedical application is restricted because of the uncertain biocompatibility. In this work, we developed a lignin-incorporated nanogel and explored its application for wound healing. Lignin was extracted from coconut husks and determined to have strong antioxidant activity (IC50 = 25.7 ppm). Various amounts of lignin were incorporated into thermoresponsive nanogels, which were produced from polyurethane copolymers of polyethylene glycol (PEG), polypropylene glycol (PPG), and polydimethylsiloxane (PDMS). It was shown that the addition of lignin had minimal effects on the gelation and rheological properties of the nanogel but slightly increased the critical micelle concentration (CMC) of poly(PEG/PPG/PDMS urethane) copolymer from 3.38 × 10-4 g mL-1 to 4.61 × 10-4 g mL-1. The lignin-incorporated nanogels did not display detectable cytotoxicity. The lignin-incorporated nanogel possessed antioxidant activity, as it reduced the active oxygen level, protecting the LO2 cells from apoptosis caused by oxidative stress. More importantly, in vivo studies demonstrated that the lignin-incorporated nanogels accelerated the healing of burn wounds in mice as proved by the increased expression of Ki67, one marker of cell proliferation. The present work demonstrates that lignin-incorporated nanogel could serve as an antioxidant wound-dressing material and facilitate the wound healing.
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Affiliation(s)
- Jia Xu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Jia Jia Xu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Qianyu Lin
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Lu Jiang
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Duoteng Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Bo Ma
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Chengwu Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China
| | - Dan Kai
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Hai-Dong Yu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, P.R. China.,Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, P. R. China
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
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9
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Calabrese V, Scuto M, Salinaro AT, Dionisio G, Modafferi S, Ontario ML, Greco V, Sciuto S, Schmitt CP, Calabrese EJ, Peters V. Hydrogen Sulfide and Carnosine: Modulation of Oxidative Stress and Inflammation in Kidney and Brain Axis. Antioxidants (Basel) 2020; 9:antiox9121303. [PMID: 33353117 PMCID: PMC7767317 DOI: 10.3390/antiox9121303] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023] Open
Abstract
Emerging evidence indicates that the dysregulation of cellular redox homeostasis and chronic inflammatory processes are implicated in the pathogenesis of kidney and brain disorders. In this light, endogenous dipeptide carnosine (β-alanyl-L-histidine) and hydrogen sulfide (H2S) exert cytoprotective actions through the modulation of redox-dependent resilience pathways during oxidative stress and inflammation. Several recent studies have elucidated a functional crosstalk occurring between kidney and the brain. The pathophysiological link of this crosstalk is represented by oxidative stress and inflammatory processes which contribute to the high prevalence of neuropsychiatric disorders, cognitive impairment, and dementia during the natural history of chronic kidney disease. Herein, we provide an overview of the main pathophysiological mechanisms related to high levels of pro-inflammatory cytokines, including interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and neurotoxins, which play a critical role in the kidney–brain crosstalk. The present paper also explores the respective role of H2S and carnosine in the modulation of oxidative stress and inflammation in the kidney–brain axis. It suggests that these activities are likely mediated, at least in part, via hormetic processes, involving Nrf2 (Nuclear factor-like 2), Hsp 70 (heat shock protein 70), SIRT-1 (Sirtuin-1), Trx (Thioredoxin), and the glutathione system. Metabolic interactions at the kidney and brain axis level operate in controlling and reducing oxidant-induced inflammatory damage and therefore, can be a promising potential therapeutic target to reduce the severity of renal and brain injuries in humans.
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Affiliation(s)
- Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (M.S.); (S.M.); (M.L.O.); (V.G.); (S.S.)
- Correspondence: (V.C.); (A.T.S.)
| | - Maria Scuto
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (M.S.); (S.M.); (M.L.O.); (V.G.); (S.S.)
| | - Angela Trovato Salinaro
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (M.S.); (S.M.); (M.L.O.); (V.G.); (S.S.)
- Correspondence: (V.C.); (A.T.S.)
| | - Giuseppe Dionisio
- Department of Molecular Biology and Genetics, Research Center Flakkebjerg, Aarhus University, Forsøgsvej 1, 4200 Slagelse, Denmark;
| | - Sergio Modafferi
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (M.S.); (S.M.); (M.L.O.); (V.G.); (S.S.)
| | - Maria Laura Ontario
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (M.S.); (S.M.); (M.L.O.); (V.G.); (S.S.)
| | - Valentina Greco
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (M.S.); (S.M.); (M.L.O.); (V.G.); (S.S.)
| | - Sebastiano Sciuto
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (M.S.); (S.M.); (M.L.O.); (V.G.); (S.S.)
| | - Claus Peter Schmitt
- Centre for Pediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany; (C.P.S.); (V.P.)
| | - Edward J. Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA 01003, USA;
| | - Verena Peters
- Centre for Pediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany; (C.P.S.); (V.P.)
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10
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Zhang H, Lu S, Ren H, Zhao K, Li Y, Guan Y, Li H, Hu P, Liu Z. Cytotoxicity and degradation product identification of thermally treated ceftiofur. RSC Adv 2020; 10:18407-18417. [PMID: 35517214 PMCID: PMC9053768 DOI: 10.1039/c9ra10289b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 05/06/2020] [Indexed: 01/09/2023] Open
Abstract
Ceftiofur (CEF) is a cephalosporin antibiotic and is a commonly used drug in animal food production. As a heat-labile compound, the residual CEF toxicity after thermal treatment has rarely been reported. This study was to investigate the potential toxicity of thermally treated CEF and determine the toxic components. By cytotoxicity tests and liquid chromatography-mass spectrometry (LC-MS) assays, the cytotoxicity of the thermally treated CEF (TTC) and the components of TTC was identified, respectively. Our results showed that TTC exhibited significantly increased toxicity compared with CEF towards LO2 cells by inducing apoptosis. Through LC-MS assays, we identified that the toxic compound of TTC was CEF-aldehyde (CEF-1). The IC50 value of CEF-1 on LO2 cells treated for 24 h was 573.1 μg mL−1, approximately 5.3 times lower than CEF (3052.0 μg mL−1) and 3.4 times lower than TTC (1967.0 μg mL−1). Moreover, we found that CEF-1 was also present in thermally treated desfuroylceftiofur (DFC), the primary metabolite of CEF, indicating that residual CEF or DFC could produce CEF-1 during the heating process. These findings suggest that CEF-1 is a newly identified toxic compound, and CEF-1 may pose a potential threat to food safety or public health. Ceftiofur (CEF) is a cephalosporin antibiotic and is a commonly used drug in animal food production. This study investigated the cytotoxicity of thermally treated CEF.![]()
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Affiliation(s)
- Hong Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
| | - Shiying Lu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
| | - Honglin Ren
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
| | - Ke Zhao
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
| | - Yansong Li
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
| | - Yuting Guan
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
| | - Hanxiao Li
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
| | - Pan Hu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
| | - Zengshan Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University 5333 Xi'an Road, Changchun Jilin 130062 PR China +86-431-8783-6716 +86-431-8783-6703
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Sestito S, Pruccoli L, Runfola M, Citi V, Martelli A, Saccomanni G, Calderone V, Tarozzi A, Rapposelli S. Design and synthesis of H 2S-donor hybrids: A new treatment for Alzheimer's disease? Eur J Med Chem 2019; 184:111745. [PMID: 31585237 DOI: 10.1016/j.ejmech.2019.111745] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/12/2019] [Accepted: 09/26/2019] [Indexed: 12/11/2022]
Abstract
Hydrogen sulphide (H2S) is an endogenous gasotransmitter, largely known as a pleiotropic mediator endowed with antioxidant, anti-inflammatory, pro-autophagic, and neuroprotective properties. Moreover, a strong relationship between H2S and aging has been recently identified and consistently, a significant decline of H2S levels has been observed in patients affected by Alzheimer's disease (AD). On this basis, the use of H2S-donors could represent an exciting and intriguing strategy to be pursued for the treatment of neurodegenerative diseases (NDDs). In this work, we designed a small series of multitarget molecules combining the rivastigmine-scaffold, a well-established drug already approved for AD, with sulforaphane (SFN) and erucin (ERN), two natural products deriving from the enzymatic hydrolysis of glucosinolates contained in broccoli and rocket, respectively, endowed both with antioxidant and neuroprotective effects. Notably, all new synthetized hybrids exhibit a H2S-donor profile in vitro and elicit protective effects in a model of LPS-induced microglia inflammation. Moreover, a decrease in NO production has been observed in LPS-stimulated cells pre-treated with the compounds. Finally, the compounds showed neuroprotective and antioxidant activities in human neuronal cells. The most interesting compounds have been further investigated to elucidate the possible mechanism of action.
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Affiliation(s)
| | - Letizia Pruccoli
- Department for Life Quality Studies, University of Bologna, Italy
| | | | | | - Alma Martelli
- Department of Pharmacy, University of Pisa, Italy; Interdepartmental Research Centre "Nutraceuticals and Food for Health (NUTRAFOOD)", University of Pisa, Italy; Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Italy
| | | | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, Italy; Interdepartmental Research Centre "Nutraceuticals and Food for Health (NUTRAFOOD)", University of Pisa, Italy; Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Italy
| | - Andrea Tarozzi
- Department for Life Quality Studies, University of Bologna, Italy.
| | - Simona Rapposelli
- Department of Pharmacy, University of Pisa, Italy; Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Italy.
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