1
|
Li H, Zhang W, Yan H, Gao P. Understanding the toxicity risk of antibiotic emissions of aquaculture from the perspective of fluctuations concentration. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 351:124024. [PMID: 38685554 DOI: 10.1016/j.envpol.2024.124024] [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: 01/15/2024] [Revised: 04/08/2024] [Accepted: 04/21/2024] [Indexed: 05/02/2024]
Abstract
Organisms are generally exposed to target contaminant with stable concentrations in traditional ecotoxicological studies. However, it is difficult to truly represent the dynamics and complexity of actual aquatic pollution for risk management. Contaminants may enter nearby aquatic systems in pulsed exposure, thus resulting in that aquatic organisms will be exposed to contaminants at fluctuating concentrations. Especially during the season of summer, due to the changes in displacement or periodic emissions of veterinary antibiotics in aquaculture, algal blooms occur frequently in surrounding waters, thus leading to eutrophication of the water. Florfenicol (FFC) is currently widely used as a veterinary antibiotic, but the aquatic ecological risks of FFC under concentration fluctuations are still unknown. Therefore, the acute exposure, chronic exposure and pulsed exposure effects of FFC on Microcystis aeruginosa were investigated to comprehensively evaluate the ecological risk of FFC and raise awareness of the pulsed exposure mode. Results indicated that the toxic effects of FFC on M. aeruginosa were dominated by exposure mode, exposure duration, exposure frequency, and exposure concentration. The maximum growth inhibition rate of the 10 μg/L FFC treatment amounted to 4.07% during chronic exposure of 18 days. However, the growth inhibition rate decreased from 55.1% to 19.31% when algae was exposure to 10 μg/L FFC during the first pulsed exposure (8 h). Therefore, when the concentration of FFC was equal under chronic and pulsed exposure, FFC exhibited greater toxicity on M. aeruginosa in short pulsed exposure than in continuous exposure. In addition, repetitive pulsed exposure strengthened the resistance of M. aeruginosa on FFC. The adaptive regulation of algae was related to the duration and frequency of exposure. Above results suggested that traditional toxicity assessments lacked consideration for fluctuating concentrations during pollutant emissions, thus underestimating the environmental risk of contaminant. This investigation aims to facilitate the standardization of pulsed exposure.
Collapse
Affiliation(s)
- Huixiang Li
- School of Resource and Environmental Sciences, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, Hubei, 430079, PR China; Central & Southern China Municipal Engineering Design and Research Institute Co LTD, Jiefang Park Avenue, Wuhan, Hubei, 430063, PR China
| | - Weihao Zhang
- School of Resource and Environmental Sciences, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, Hubei, 430079, PR China
| | - Huimin Yan
- School of Resource and Environmental Sciences, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, Hubei, 430079, PR China
| | - Pan Gao
- Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, PR China.
| |
Collapse
|
2
|
Liu J, Yan P, Li Y, Yu J, Huang Y, Bai R, Liu M, Wang N, Liu L, Zhu J, Xiao J, Guo L, Liu G, Zhang F, Yang X, He B, Zeng J, Zeng X. Gut microbiota and serum metabolome reveal the mechanism by which TCM polysaccharides alleviate salpingitis in laying hens challenged by bacteria. Poult Sci 2024; 103:103288. [PMID: 38064885 PMCID: PMC10749910 DOI: 10.1016/j.psj.2023.103288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 12/29/2023] Open
Abstract
This paper aimed to evaluate the effect of 3 kinds of TCM polysaccharides instead of antibiotics in preventing salpingitis in laying hens. After feeding the laying hens with Lotus leaf polysaccharide, Poria polysaccharide, and Epimedium polysaccharide, mixed bacteria (E. coli and Staphylococcus aureus) were used to infect the oviduct to establish an inflammation model. Changes in antioxidant, serum immunity, anti-inflammatory, gut microbiota, and serum metabolites were evaluated. The results showed that the 3 TCM polysaccharides could increase the expression of antioxidant markers SOD, GSH, and CAT, and reduce the accumulation of MDA in the liver; the contents of IgA and IgM in serum were increased. Decreased the mRNA expression of TLR4, NFκB, TNF-α, IFN-γ, IL1β, IL6, and IL8, and increased the mRNA expression of anti-inflammatory factor IL5 in oviduct tissue. 16sRNA high-throughput sequencing revealed that the 3 TCM polysaccharides improved the intestinal flora disturbance caused by bacterial infection, increased the abundance of beneficial bacteria such as Bacteroides and Actinobacillus, and decreased the abundance of harmful bacteria such as Romboutsia, Turicibacter, and Streptococcus. Metabolomics showed that the 3 TCM polysaccharides could increase the content of metabolites such as 3-hydroxybutyric acid and isobutyl-L-carnitine, and these results could alleviate the further development of salpingitis. In conclusion, the present study has found that using TCM polysaccharides instead of antibiotics was a feasible way to prevent bacterial salpingitis in laying hens, which might make preventing this disease no longer an issue for breeding laying hens.
Collapse
Affiliation(s)
- Jiali Liu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Pupu Yan
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Yana Li
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Jie Yu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Yongxi Huang
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Ruonan Bai
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Man Liu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Ning Wang
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Lian Liu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Jun Zhu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Junhao Xiao
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Liwei Guo
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China.
| | - Guoping Liu
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Fuxian Zhang
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Xiaolin Yang
- College of Animal Science and Technology, Yangtze University, Jingzhou, Hubei, China
| | - Bin He
- Institute of Animal Husbandry and Veterinary Medicine, Wuhan Academy of Agricultural Sciences, Wuhan, Hubei, China
| | - Jianguo Zeng
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Xiaoqin Zeng
- The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, China
| |
Collapse
|
3
|
Feng Y, Wu X, Hu D, Wang C, Chen Q, Ni Y. Comparison of the Effects of Feeding Compound Probiotics and Antibiotics on Growth Performance, Gut Microbiota, and Small Intestine Morphology in Yellow-Feather Broilers. Microorganisms 2023; 11:2308. [PMID: 37764152 PMCID: PMC10535644 DOI: 10.3390/microorganisms11092308] [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: 08/13/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
This study was devoted to the comparison of the probiotic effect of compound probiotics to antibiotics as a feed additive for chicken. Two hundred and seventy newly hatched yellow-feather broilers were randomly divided into three groups: the control group (Con), probiotics (Pb), and antibiotics group (Ab). The Pb group received compound probiotics (Bifidobacterium, Lactobacillus acidophilus, Streptococcus faecalis, and yeast) via drinking water for 24 days. The Ab group received antibiotics (zinc bacitracin and colistin sulfate) in their diet for 24 days. All broilers were slaughtered on day 42. Compared with the Con group, the body weight was significantly increased on days 13, 28, and 42 in the Pb group (p < 0.05), and markedly increased on day 28 in the Ab group (p < 0.05). Compared with the Ab group, the body weight of the broilers in the Pb group increased significantly on day 13 (p < 0.05). Compared to the Con and Pb groups, the antibiotics treatment reduced the feed intake (p < 0.05), but there was no significant difference in the feed conversion ratio between the Ab and Pb groups (p > 0.05). The feed conversion ratio of the broilers treated with antibiotics or probiotics significantly decreased compared to the Con group (p < 0.05). The depth of duodenum, jejunum, and ileum crypts in the Pb group decreased significantly compared to the Con and Ab group (p < 0.05). The ratio of the villi length to crypt depth of duodenum, jejunum, and ileum epithelium was significantly increased in the Pb group compared to the Con group (p < 0.05). The genera Bacteroides and Barnesiella were the most significantly enriched bacteria in the Ab and Pb groups, respectively (p < 0.05). The expression of the genes related to antibiotic resistance was significantly decreased in the Pb group compared to the Ab group (p < 0.05). Although both compound probiotics and antibiotics can improve growth performance, antibiotics increased the abundance of harmful bacteria and drug-resistant genes, while probiotics increased Barnesiella abundance, which is related to a decrease in the drug-resistant gene expression. Moreover, the probiotics treatment improved small intestinal morphology and fecal emissions, while antibiotics have no significant effect on these indicators, indicating a bright future for probiotics as an alternative to feed antibiotics in the yellow-feather broiler industry.
Collapse
Affiliation(s)
- Yuyan Feng
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaoting Wu
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Dan Hu
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Canyang Wang
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| | - Qu Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yingdong Ni
- Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, China
| |
Collapse
|
4
|
Luo L, Xue J, Shao Z, Zhou Z, Tang W, Liu J, Hu H, Yang F. Recent developments in Salvia miltiorrhiza polysaccharides: Isolation, purification, structural characteristics and biological activities. Front Pharmacol 2023; 14:1139201. [PMID: 36937857 PMCID: PMC10020221 DOI: 10.3389/fphar.2023.1139201] [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: 01/06/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
In recent years, natural polysaccharides have attracted more and more attention and research because of their value in the medicine, beauty and food fields. Salvia miltiorrhiza is a traditional Chinese herb that has been used for thousands of years and has antidiabetic, antifibrotic, neuroprotective, antioxidation, anti-inflammatory and other effects. It mainly includes rosmarinic acid, tanshinone I, tanshinone IIA, tanshinone IIB, procatechualdehyde, polysaccharide and salvianolic acids. Salvia miltiorrhiza polysaccharide is a polysaccharide extracted and isolated from Salvia miltiorrhiza and has diverse biological functions, including antioxidation, anti-tumor, hepatoprotective, anti-inflammatory, immune regulatory and cardioprotective effect. In this review, the extraction, purification, structural characterization and biological activity of SMPs are summarized and new perspectives for the future work of SMPs were also proposed, we hope our research can provide a reference for further research on SMPs.
Collapse
Affiliation(s)
- Lei Luo
- Department of Health Management Center, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
| | - Juan Xue
- Department of Gastroenterology, Hubei Provincial Hospital of Traditional Chinese and Western Medicine, Wuhan, China
- School of Clinical Medical, Hubei University of Chinese Medicine, Wuhan, China
| | - Zheng Shao
- Department of Health Management Center, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
| | - Zhang Zhou
- Department of Anesthesiology, Wuhan Fourth Hospital, Wuhan, China
| | - Wenqian Tang
- Department of Health Management Center, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
| | - Jinxin Liu
- School of Clinical Medical, Hubei University of Chinese Medicine, Wuhan, China
| | - Hongfei Hu
- School of Clinical Medical, Hubei University of Chinese Medicine, Wuhan, China
| | - Fan Yang
- Department of Health Management Center, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China
- *Correspondence: Fan Yang,
| |
Collapse
|
5
|
Zhao RH, Yang FX, Bai YC, Zhao JY, Hu M, Zhang XY, Dou TF, Jia JJ. Research progress on the mechanisms underlying poultry immune regulation by plant polysaccharides. Front Vet Sci 2023; 10:1175848. [PMID: 37138926 PMCID: PMC10149757 DOI: 10.3389/fvets.2023.1175848] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/28/2023] [Indexed: 05/05/2023] Open
Abstract
With the rapid development of poultry industry and the highly intensive production management, there are an increasing number of stress factors in poultry production. Excessive stress will affect their growth and development, immune function, and induce immunosuppression, susceptibility to a variety of diseases, and even death. In recent years, increasing interest has focused on natural components extracted from plants, among which plant polysaccharides have been highlighted because of their various biological activities. Plant polysaccharides are natural immunomodulators that can promote the growth of immune organs, activate immune cells and the complement system, and release cytokines. As a green feed additive, plant polysaccharides can not only relieve stress and enhance the immunity and disease resistance of poultry, but also regulate the balance of intestinal microorganisms and effectively alleviate all kinds of stress faced by poultry. This paper reviews the immunomodulatory effects and molecular mechanisms of different plant polysaccharides (Atractylodes macrocephala Koidz polysaccharide, Astragalus polysaccharides, Taishan Pinus massoniana pollen polysaccharide, and alfalfa polysaccharide) in poultry. Current research results reveal that plant polysaccharides have potential uses as therapeutic agents for poultry immune abnormalities and related diseases.
Collapse
Affiliation(s)
- Ruo-Han Zhao
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Fang-Xiao Yang
- College of Animal Science and Veterinary Medicine, Yunnan Vocational and Technical College of Agriculture, Kunming, Yunnan, China
| | - Yi-Cheng Bai
- Kunming CHIA TAI Co., Ltd., Kunming, Yunnan, China
| | - Jing-Ying Zhao
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Mei Hu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Xin-Yan Zhang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Teng-Fei Dou
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, China
- Teng-Fei Dou
| | - Jun-Jing Jia
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, China
- *Correspondence: Jun-Jing Jia
| |
Collapse
|