1
|
Liao X, Guo R, Mei M, Li J, Wang T, Liu J, Chen S, Wang W. Insights into the performance and mechanism of a reinforced lignocellulosic sorbent fabricated from sawdust biomass for multi-tasking application in enrofloxacin removal and monitoring. Int J Biol Macromol 2024; 285:138316. [PMID: 39638168 DOI: 10.1016/j.ijbiomac.2024.138316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2024] [Revised: 11/25/2024] [Accepted: 12/01/2024] [Indexed: 12/07/2024]
Abstract
Natural lignocellulose-based materials have numerous strengths such as abundance, cheap price and biodegradability, which indicates a brilliant prospect for environmental protection. This work aimed to design an efficient sorbent (NaSS-PSD) by pine sawdust (PSD) for the surveillance and management of enrofloxacin (ENR). In the study, sodium styrenesulfonate (NaSS) was chosen as an effective monomer to ameliorate the performance of PSD by graft copolymerization. The removal of ENR by NaSS-PSD was enhanced in comparison with the ungrafted ones under investigated conditions. Pseudo-second-order and Temkin were the best-fitted models to describe the adsorption behavior. For the first time, NaSS-PSD was employed as a novel extractant of solid-phase extraction (SPE) and dispersive solid-phase microextraction (DSPME) to develop accurate, eco-friendly and economic analytical techniques for trace ENR determination. Good linearity and reproducibility were obtained. The limits of detection were 0.41 μg/L for DSPME-HPLC-DAD technique and 0.15 μg/L for SPE-HPLC-DAD technique. These two methods exhibited satisfying practicability when applied to quantify ENR residue in real waters. The study on interfacial interaction mechanism and preferential binding sites suggested that hydrogen bond and π-π interactions took the primary responsibility. Our work provides a good perspective for tailoring natural lignocellulosic biomass to be alternative adsorbents for emerging pollutants.
Collapse
Affiliation(s)
- Xuan Liao
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Ruiyu Guo
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Meng Mei
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China.
| | - Jinping Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Teng Wang
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Jingxin Liu
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Si Chen
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Wenxia Wang
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China; Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| |
Collapse
|
2
|
Xu N, Zhang H, Dong J, Yang Y, Liu Y, Zhou S, Zhu X, Ai X. A modified withdrawal time estimation and risk assessment of enrofloxacin in grass carp (Ctenopharyngodon idella) after ad libitum medicated feed based on statistical approaches in natural cultured environments. Vet Res Commun 2024; 48:3049-3060. [PMID: 39052188 DOI: 10.1007/s11259-024-10475-0] [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: 05/08/2024] [Accepted: 07/20/2024] [Indexed: 07/27/2024]
Abstract
Enrofloxacin (EF) is a broad-spectrum and highly efficient antibiotic commonly used for treating diseases in aquatic animals. However, its abuse in aquaculture applications often leads to excess residue in tissues of grass carp (Ctenopharyngodon idella). Hence, this study aimed to estimate the withdrawal time (WT) of EF and its metabolite of ciprofloxacin (CF) administered medicated feed in natural culture environments and conduct a risk assessment. Plasma and tissue samples were gathered at appropriate time points and detected by high-performance liquid chromatography. The data homogeneity was evaluated by Bartlett's test and Cochran's test. The linearity of the regressed line was evaluated by visual inspection and F test. Outliers were estimated on a normal probability scale by plotting the standardized residual versus their cumulative frequency distribution. Finally, the WT was calculated to be 51 days in muscle + skin based on the maximum residue limit of 100 µg/kg. After 51 days, the concentration of EF and CF fell below 10 µg/kg. The estimated daily intake was calculated to be 0.009 µg/kg/d. Hazard quotient was computed to be 0.002, which was far below one. These results suggested that calculated WT of EF could ensure the safety of products from grass carp for humans.
Collapse
Affiliation(s)
- Ning Xu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China.
- Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan, China.
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No. 8 Wuda Park Road 1, Wuhan, 430223, Hubei Province, China.
| | - Huan Zhang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Jing Dong
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
- Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan, China
| | - Yibin Yang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
- Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan, China
| | - Yongtao Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
- Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan, China
| | - Shun Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
- Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan, China
| | - Xia Zhu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China
- Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan, China
| | - Xiaohui Ai
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, China.
- Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan, China.
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, No. 8 Wuda Park Road 1, Wuhan, 430223, Hubei Province, China.
| |
Collapse
|
3
|
Liu Q, Wang X, Wang X, Chen H, Lyu S, Zhang Z, Tian F, Zhang L, Ma S. Dynamic impacts of short-term bath administration of enrofloxacin on juvenile black seabream Acanthopagrus schlegelii. CHEMOSPHERE 2024; 361:142573. [PMID: 38852630 DOI: 10.1016/j.chemosphere.2024.142573] [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: 02/27/2024] [Revised: 05/17/2024] [Accepted: 06/07/2024] [Indexed: 06/11/2024]
Abstract
Dynamic impacts of short-term enrofloxacin (ENR) exposure on juvenile marine fish are not well understood, and the underlying mechanisms remain unclear. We therefore investigated the accumulation and elimination of ENR in the liver of juvenile black seabream Acanthopagrus schlegelii. Meanwhile, the dynamic alterations of biochemical parameters and liver transcriptomes after short-term bath immersion and withdrawal treatment were explored. The results indicated that the contents of ENR in the liver were significantly increased after bath administration for 24 h, and then quickly declined to very low concentrations along with the decontamination time increasing. Judging from the changes in biochemical indicators and liver transcriptomic alterations, 0.5 and 1 mg/L ENR exposure for 24 h triggered oxidative stress, impairment of immune system, as well as aberrant lipid metabolism via differential molecular pathways. Interestingly, biochemical and transcriptome analysis as well as integrated biomarker response (IBR) values showed that more significant changes appeared in 1 mg/L ENR group at decontamination periods, which indicated that the impact of high dose ENR on juvenile A. schlegelii may persist even after depuration for 7 days. These results revealed that the risk of short-term bath of 1 mg/L ENR should not be overlooked even after depuration period. Therefore, attention should be paid to the dosage control when administering the drug to juvenile A. schlegelii, and the restoration of physiological disturbance may be an important factor in formulating a reasonable treatment plan.
Collapse
Affiliation(s)
- Qian Liu
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China; College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Xuefeng Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Xufeng Wang
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China
| | - Haigang Chen
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China
| | - Shaoliang Lyu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhe Zhang
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China
| | - Fei Tian
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China
| | - Linbao Zhang
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China.
| | - Shengwei Ma
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resource and Environment, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou, 510300, China.
| |
Collapse
|
4
|
Ye Y, Huang J, Li S, Li Y, Zhao Y. Effects of Dietary Melatonin on Antioxidant Capacity, Immune Defense, and Intestinal Microbiota in Red Swamp Crayfish (Procambarus clarkii). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:623-638. [PMID: 38814375 DOI: 10.1007/s10126-024-10326-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/23/2024] [Indexed: 05/31/2024]
Abstract
The aim of this study was to investigate the effects of melatonin (MT) feed supplementation on the antioxidant capacity, immune defense, and intestinal flora in Procambarus clarkii (P. clarkii). Six groups of P. clarkii were fed test feeds containing different levels of MT: 0 mg/kg (control), 22.5, 41.2, 82.7, 165.1, and 329.2 mg/kg for a duration of 2 months. The specific growth rate, hepatosomatic index, and condition factor were recorded highest in the test group of shrimp fed an MT concentration of 165.1 mg/kg. Compared to the control group, the rate of apoptosis was lower in hepatopancreas cells of P. clarkii supplemented with high concentrations of MT. Analyses of antioxidant capacity and immune-response-related enzymes in the hepatopancreas indicated that dietary supplementation of MT significantly augmented both the antioxidant system and immune responses. Dietary MT supplementation significantly increased the expression levels of antioxidant-immunity-related genes and decreased the expression levels of genes linked to apoptosis. Dietary MT was associated with an elevation in the abundance of the Firmicutes and a reduction in the abundance of the Proteobacteria in the intestines; besides, resulting in an increase in the abundance of beneficial bacteria, such as Lactobacilli. The broken-line model indicated that the suitable MT concentration was 154.09-157.09 mg/kg. MT supplementation enhanced the growth performance of P. clarkii, exerting a positive influence on the intestinal microbiota, and bolstered both immune response and disease resistance. Thus, this study offered novel perspectives regarding the application of dietary MT supplementation within the aquaculture field.
Collapse
Affiliation(s)
- Yucong Ye
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Jiarong Huang
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Siwen Li
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Yiming Li
- Fishery Machinery and Instrument Research Institute, Chinese Academy of Fisheries Sciences, 63 Chifeng Rd, Shanghai, 200092, China.
| | - Yunlong Zhao
- School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
| |
Collapse
|
5
|
Luo J, Xiao S, Ma D, Xiang J, Wang B, Cai Y, Wang J. Investigating the Impact of Pineapple-Whey Protein Fermentation Products on Cefixime-Induced Intestinal Flora Dysbiosis in Mice Using 16S Sequencing and Untargeted Metabolomics Techniques. Foods 2024; 13:1927. [PMID: 38928868 PMCID: PMC11202880 DOI: 10.3390/foods13121927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/21/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
In our previous study, a new fermented food (PWF) created by utilizing pineapple by-products and whey proteins as a matrix via co-fermentation with lactic acid bacteria and yeast was developed, and, in the current study, we examined the impact of a pineapple-whey protein fermentation product on a cefixime-induced dysbiosis model in mice using 16S sequencing and untargeted metabolomics techniques. The results indicated that the pineapple-whey protein fermentation product played a positive role in restoring the intestinal flora. In this study, cefixime reduced the overall abundance of intestinal flora and decreased the relative abundance of probiotics in the gut, while also inhibiting amino acid metabolism. The addition of PWF normalized the intestinal flora to a steady state, significantly increasing the populations of Weissella, Lactococcus, Faecalibaculum, and Bacteroides acidophilus, while decreasing the numbers of Akkermansia and Escherichia-Shigella. Additionally, PWF modulated microbial metabolites, such as L-glutamate and L-threonine, and upregulated amino-acid-related metabolic pathways, including those involving glycine, serine, and threonine. In conclusion, PWF can alleviate intestinal flora dysbiosis and metabolic disturbances induced by antibiotic interventions. It is suggested that PWF could be a potential dietary strategy for patients with antibiotic-associated diarrhea.
Collapse
Affiliation(s)
- Jiawei Luo
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China; (J.L.); (D.M.); (J.X.); (B.W.); (Y.C.); (J.W.)
- Dongguan Prefabricated Food Innovation Development and Quality Control Key Laboratory, Dongguan 523808, China
| | - Shan Xiao
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China; (J.L.); (D.M.); (J.X.); (B.W.); (Y.C.); (J.W.)
- Dongguan Prefabricated Food Innovation Development and Quality Control Key Laboratory, Dongguan 523808, China
| | - Da Ma
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China; (J.L.); (D.M.); (J.X.); (B.W.); (Y.C.); (J.W.)
- Dongguan Prefabricated Food Innovation Development and Quality Control Key Laboratory, Dongguan 523808, China
| | - Junhan Xiang
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China; (J.L.); (D.M.); (J.X.); (B.W.); (Y.C.); (J.W.)
- Dongguan Prefabricated Food Innovation Development and Quality Control Key Laboratory, Dongguan 523808, China
| | - Bo Wang
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China; (J.L.); (D.M.); (J.X.); (B.W.); (Y.C.); (J.W.)
- Dongguan Prefabricated Food Innovation Development and Quality Control Key Laboratory, Dongguan 523808, China
| | - Yanxue Cai
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China; (J.L.); (D.M.); (J.X.); (B.W.); (Y.C.); (J.W.)
- Dongguan Prefabricated Food Innovation Development and Quality Control Key Laboratory, Dongguan 523808, China
| | - Jihui Wang
- School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China; (J.L.); (D.M.); (J.X.); (B.W.); (Y.C.); (J.W.)
- Dongguan Prefabricated Food Innovation Development and Quality Control Key Laboratory, Dongguan 523808, China
| |
Collapse
|
6
|
Liu X, Liu F, Liu L, Song Y, Liu H. Carbamazepine transmits immune effect by activation of gut-liver axis and TLR signaling pathway from parental zebrafish to offspring. Toxicol Sci 2024; 199:108-119. [PMID: 38445754 DOI: 10.1093/toxsci/kfae026] [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] [Indexed: 03/07/2024] Open
Abstract
Carbamazepine (CBZ) has been identified in the aquatic environment as an emerging contaminant. Its immune effect across generations at environmentally relevant concentrations is little known. We aim to elucidate the effects of CBZ on the immune system in zebrafish (Danio rerio), hypothesizing the effects caused by CBZ exposure in the parental generation can be passed on to its offspring, leading to impairment of innate immune function and defense against pathogen weakened. A suite of bioassays (including a test with added lipopolysaccharide) was used to measure the effects of environmentally relevant levels of CBZ (1, 10, and 100 μg/l) on zebrafish at multiple biological levels, and across 2 successive generations (21 days exposure for F0; 5 and 21 days exposure or nonexposure for F1). The results showed that CBZ affected homeostasis in the immune system, caused liver vacuolization, increased the inflammation-related microbiota proportion in gut, and decreased reproduction, by induction of oxidative stress and modulation of Toll-like receptors (TLR) signaling pathway on gut-liver axis. The effects of exposure to CBZ over 21 days in F0 could be passed to the next generation. Intergenerational effects on TLR and antioxidant defense system were also observed in nonexposed F1 at 5 days post-fertilization (5 dpf), but diminished at 21 dpf. The finding provided evidence to unravel immune response by gut-liver axis mediated and oxidative stress under 4 test conditions. The study has raised a potential concern about the multigenerational immune effects of environmental pollutants and calls for a focus on the risk of synergetic pathogen infection.
Collapse
Affiliation(s)
- Xuan Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, P.R. China
| | - Fan Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, P.R. China
| | - Li Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, P.R. China
| | - You Song
- Section of Ecotoxicology and Risk Assessment, Norwegian Institute for Water Research (NIVA), Oslo 0579, Norway
| | - Hongling Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, P.R. China
| |
Collapse
|
7
|
Song Z, Li K, Li K. Integrated characterizations of intestinal bacteria and transcriptomics revealed the acute stress response to carbonate alkalinity in white shrimp Penaeusvannamei. FISH & SHELLFISH IMMUNOLOGY 2024; 146:109420. [PMID: 38325592 DOI: 10.1016/j.fsi.2024.109420] [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: 12/19/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 02/09/2024]
Abstract
The impact of carbonate alkalinity in saline-alkaline water on aquatic organisms, particularly Penaeus vannamei, a significant species in aquaculture, remains a critical area of study. To elucidate the acute response mechanisms of P. vannamei to elevated carbonate alkalinity environments, we utilized 16S rRNA gene and transcriptome sequencing technologies to analyze intestinal bacteria and gene expressions within various tissues. Our investigation revealed notable changes in specific intestinal bacterial OTUs, whose abundances varied preceding the overall bacterial community, indicating the sensitivity to carbonate alkalinity exposure. These shifts are accompanied by a simplification in bacterial networks and alterations in pathogenic OTUs, notably Aeromonas OTU. Concurrently, gene expression variations were observed across the hepatopancreas, gills, muscles, and intestines, with decreasing numbers of DEGs in the mentioned order. Annotation of these DEGs revealed enrichments in pathways related to transport, catabolism, immune responses, circulatory functions, and lipid metabolism. Notably, correlations between specific intestinal bacterial OTUs and gene expression shifts were identified across these tissues. Several OTUs, attributed to Rhizobiales, Saccharimonadales, Acidovora, and Aeromona, exhibited a correlation with DEGs in all four tissues, primarily associated with amino acid metabolism, signal transduction, and transport and catabolism pathways. Our study provides comprehensive insights into the dynamic responses of P. vannamei to elevated carbonate alkalinity stress. These findings contribute crucial knowledge for effective P. vannamei cultivation in saline-alkaline water, advancing our understanding in this field.
Collapse
Affiliation(s)
- Zule Song
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Kui Li
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Kejun Li
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China.
| |
Collapse
|
8
|
Du M, Ren Z, Li Q, Pu Q, Li X, Qiu Y, Li Y. Reduced bacterial resistance antibiotics with improved microbiota tolerance in human intestinal: Molecular design and mechanism analysis. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132368. [PMID: 37619278 DOI: 10.1016/j.jhazmat.2023.132368] [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: 06/21/2023] [Revised: 08/17/2023] [Accepted: 08/20/2023] [Indexed: 08/26/2023]
Abstract
Antibiotic selectivity and bacterial resistance are critical global public health issues. We constructed a multi-class machine learning model to study antibiotic effects on human intestinal microbiota abundance and identified key features. Binding energies of β-lactam antibiotics with Escherichia coli PBP3 mutant protein were calculated, and a 2D-QSAR model for bacterial resistance was established. Sensitivity analysis identified key features affecting bacterial resistance. By coupling key features from the machine learning model and 2D-QSAR model, we designed ten flucloxacillin (FLU) substitutes that improved intestinal microbiota tolerance and reduced antibiotic bacterial resistance. Concurrently, the substitutes exhibited superior degradability in soil, aquatic environments, and under photolytic conditions, coupled with a reduced environmental toxicity compared to the FLU. Evaluations under combined medication revealed significant improvements in functionality and bacterial resistance for 80% of FLU substitutes, with 50% showing more than a twofold increase. Mechanistic analysis demonstrated enhanced binding to target proteins and increased biodegradability for FLU substitutes due to more concentrated surface charges. Reduced solvent hindrance and increased cell membrane permeability of FLU substitutes, mainly due to enhanced interactions with phospholipid bilayers, contributed to their functional selectivity. This study aims to address poor antibiotic selectivity and strong bacterial resistance, providing guidance for designing antibiotic substitutes.
Collapse
Affiliation(s)
- Meijin Du
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Zhixing Ren
- College of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Qing Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Qikun Pu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Xinao Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Youli Qiu
- School of Chemical Safety, North China Institute of Science and Technology, Yanjiao 065201, China.
| | - Yu Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| |
Collapse
|