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  1. Article ; Online: Baicalin Protects Broilers against Avian Coronavirus Infection via Regulating Respiratory Tract Microbiota and Amino Acid Metabolism.

    Feng, Haipeng / Zhang, Jingyan / Wang, Xuezhi / Guo, Zhiting / Wang, Lei / Zhang, Kang / Li, Jianxi

    International journal of molecular sciences

    2024  Volume 25, Issue 4

    Abstract: An increasing amount of evidence indicates that Baicalin (Bai, a natural glycosyloxyflavone compound) exhibits an antiviral effect against avian viruses. However, it remains unclear if the antiviral effect of Bai against infectious bronchitis virus (IBV) ...

    Abstract An increasing amount of evidence indicates that Baicalin (Bai, a natural glycosyloxyflavone compound) exhibits an antiviral effect against avian viruses. However, it remains unclear if the antiviral effect of Bai against infectious bronchitis virus (IBV) is exerted indirectly by modulating respiratory tract microbiota and/or their metabolites. In this study, we investigated the protection efficacy of Bai in protecting cell cultures and broilers from IBV infection and assessed modulation of respiratory tract microbiota and metabolites during infection. Bai was administered orally to broilers by being mixed in with drinking water for seven days. Ultimately, broilers were challenged with live IBV. The results showed that Bai treatment reduced respiratory tract symptoms, improved weight gain, slowed histopathological damage, reduced virus loads and decreased pro-inflammation cytokines production. Western blot analysis demonstrated that Bai treatment significantly inhibited Toll-like receptor 7 (TLR7), myeloid differentiation factor 88 (MyD88) and nuclear factor kappa-B (NF-κB) expression both in cell culture and cells of the trachea. Bai treatment reversed respiratory tract microbiota dysbiosis, as shown by 16S rDNA sequencing in the group of broilers inoculated with IBV. Indeed, we observed a decrease in
    MeSH term(s) Animals ; Chickens ; Gammacoronavirus ; Trachea ; Infectious bronchitis virus ; Antiviral Agents/pharmacology ; Coronavirus Infections ; Poultry Diseases/drug therapy ; Poultry Diseases/prevention & control ; Poultry Diseases/microbiology ; Flavonoids
    Chemical Substances baicalin (347Q89U4M5) ; Antiviral Agents ; Flavonoids
    Language English
    Publishing date 2024-02-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms25042109
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Molecular Characteristics, Functional Definitions, and Regulatory Mechanisms for Cross-Presentation Mediated by the Major Histocompatibility Complex: A Comprehensive Review.

    Liu, Sen / Wei, Shaoqiang / Sun, Yan / Xu, Guowei / Zhang, Shidong / Li, Jianxi

    International journal of molecular sciences

    2023  Volume 25, Issue 1

    Abstract: The major histocompatibility complexes of vertebrates play a key role in the immune response. Antigen-presenting cells are loaded on MHC I molecules, which mainly present endogenous antigens; when MHC I presents exogenous antigens, this is called cross- ... ...

    Abstract The major histocompatibility complexes of vertebrates play a key role in the immune response. Antigen-presenting cells are loaded on MHC I molecules, which mainly present endogenous antigens; when MHC I presents exogenous antigens, this is called cross-presentation. The discovery of cross-presentation provides an important theoretical basis for the study of exogenous antigens. Cross-presentation is a complex process in which MHC I molecules present antigens to the cell surface to activate CD8
    MeSH term(s) Animals ; Cross-Priming ; Histocompatibility Antigens ; Major Histocompatibility Complex ; Antigen-Presenting Cells ; Histocompatibility Antigens Class I
    Chemical Substances Histocompatibility Antigens ; Histocompatibility Antigens Class I
    Language English
    Publishing date 2023-12-22
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms25010196
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Prevalence and molecular characterization of extended-spectrum β-lactamase-producing Escherichia coli isolates from dairy cattle with endometritis in Gansu Province, China.

    Zhang, Kang / Feng, Haipeng / Zhang, Jingyan / Guo, Zhiting / Yan, Zunxiang / Wang, Guibo / Wang, Xuezhi / Wang, Lei / Li, Jianxi

    BMC veterinary research

    2024  Volume 20, Issue 1, Page(s) 19

    Abstract: Background: The present study aimed to investigate the prevalence and molecular characterization of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (E. coli) isolated from dairy cattle with endometritis in China. The prevalence of ESBL- ... ...

    Abstract Background: The present study aimed to investigate the prevalence and molecular characterization of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (E. coli) isolated from dairy cattle with endometritis in China. The prevalence of ESBL-producing E. coli in sample was detected using ChromID ESBL agar, and genotyping of the ESBL producers was performed by PCR and DNA sequencing.
    Results: The results revealed that the proportion of positive pathogens tested was 69.76% (180/258) in samples obtained from cows diagnosed with clinical endometritis, with E. coli accounting for 170 out of the 180 positive samples. The infection rate of isolated E. coli was 39.14% (101/258), and co-infections with other pathogens were prevalent. Furthermore, among the 158 E. coli isolates, 50 strains were identified as ESBL producers, with TEM and CTX-M prevalence rates at 78.00% and 32.00%, respectively. Drug sensitivity experiments indicated that 50 isolates of ESBL- producing E. coli were multidrug resistance (MDR), with 48.0% of them exhibiting positive results for both the class 1 integron gene and five gene cassettes associated with resistance to trimethoprim (dfr1 and dfrA17) and aminoglycosides (aadA1, aadA5, and dfrA1), respectively.
    Conclusion: This investigation demonstrated a substantial prevalence and heightened level of antimicrobial resistance among ESBL-producing E. coli isolates derived from dairy cattle infected with endometritis in China.
    MeSH term(s) Female ; Animals ; Cattle ; Endometritis/epidemiology ; Endometritis/veterinary ; Escherichia coli/genetics ; Prevalence ; China/epidemiology ; beta-Lactamases/genetics ; Cattle Diseases/epidemiology
    Chemical Substances beta-Lactamases (EC 3.5.2.6)
    Language English
    Publishing date 2024-01-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2191675-5
    ISSN 1746-6148 ; 1746-6148
    ISSN (online) 1746-6148
    ISSN 1746-6148
    DOI 10.1186/s12917-023-03868-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Revealing the Effect of the [CoO]

    Peng, Jia-Liang / Luo, Yin-Lin / Li, Jian-Xi / Huang, Jia-Le / Xiao, Bohao / Xiao, Can-Fei / Xiao, Kang / Liu, Zhao-Qing

    Nano letters

    2024  Volume 24, Issue 5, Page(s) 1687–1694

    Abstract: Revealing the in-depth structure-property relationship and designing specific capacity electrodes are particularly important for supercapacitors. Despite many efforts made to tune the composition and electronic structure of cobalt oxide for ... ...

    Abstract Revealing the in-depth structure-property relationship and designing specific capacity electrodes are particularly important for supercapacitors. Despite many efforts made to tune the composition and electronic structure of cobalt oxide for pseudocapacitance, insight into the [CoO]
    Language English
    Publishing date 2024-01-22
    Publishing country United States
    Document type Journal Article
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.3c04434
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Dietary supplementation with different alternative to in-feed antibiotic improves growth performance of broilers during specific phases.

    Tian, Yuhu / Zhang, Jingyan / Li, Fenghua / Wang, Anguo / Yang, Zhiqiang / Li, Jianxi

    Poultry science

    2023  Volume 102, Issue 10, Page(s) 102919

    Abstract: The effects of substituting Bacillus subtilis, Astragalus membranaceus, and enzymes for aureomycin to improve the growth performance of broilers during specific phases were studied to develop alternatives to in-feed antibiotics and decrease drug residues ...

    Abstract The effects of substituting Bacillus subtilis, Astragalus membranaceus, and enzymes for aureomycin to improve the growth performance of broilers during specific phases were studied to develop alternatives to in-feed antibiotics and decrease drug residues in meat food and antibiotic resistance. Six hundred one-day-old broilers were randomly assigned to 5 groups. Broilers in the control group were supplied with basal diets (CT), and those in the remaining 4 groups were supplied with feed containing aureomycin premix (AU), B. subtilis powder (BS), A. membranaceus root powder (AM), and enzyme compound powder (EN), respectively. Compared to the control group, broilers in the other groups exhibited better growth performance during different phases. Microbial analysis of cecal contents suggested that treatment with BS or EN significantly increased the abundance of Lactobacillus or Bifidobacteria but inhibited Escherichia coli or Clostridium welchii; however, these bacteria were suppressed by AU treatment except C. welchii. The digestibility of the feed in vitro was significantly enhanced by adding BS or EN to the feed, consistent with findings for growth performance. In conclusion, dietary supplementation with 3 additives could improve the growth performance of broilers during specific phases. Future studies should focus on designing suitable schedules to partially replace in-feed antibiotics.
    MeSH term(s) Animals ; Probiotics/pharmacology ; Chickens ; Anti-Bacterial Agents/pharmacology ; Chlortetracycline ; Powders ; Diet/veterinary ; Animal Feed/analysis ; Dietary Supplements/analysis
    Chemical Substances Anti-Bacterial Agents ; Chlortetracycline (WCK1KIQ23Q) ; Powders
    Language English
    Publishing date 2023-07-14
    Publishing country England
    Document type Randomized Controlled Trial, Veterinary ; Journal Article
    ZDB-ID 242586-5
    ISSN 1525-3171 ; 0032-5791
    ISSN (online) 1525-3171
    ISSN 0032-5791
    DOI 10.1016/j.psj.2023.102919
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Synergistic anti-infectious bronchitis virus activity of Phillygenin combined Baicalin by modulating respiratory microbiota and improving metabolic disorders.

    Feng, Haipeng / Zhang, Jingyan / Zhang, Kang / Wang, Xuezhi / Guo, Zhiting / Wang, Lei / Li, Jianxi

    Poultry science

    2023  Volume 103, Issue 2, Page(s) 103371

    Abstract: Phillygenin (PHI) and Baicalin (Bai) are the major chemical ingredients extracted from Forsythia suspensa and Scutellaria baicalensis, respectively. The mixture of Forsythia suspensa and Scutellaria baicalensis according to the theories of Traditional ... ...

    Abstract Phillygenin (PHI) and Baicalin (Bai) are the major chemical ingredients extracted from Forsythia suspensa and Scutellaria baicalensis, respectively. The mixture of Forsythia suspensa and Scutellaria baicalensis according to the theories of Traditional Chinese Veterinary Medicine, compounded formulation can effectively exert heat-clearing and detoxifying effect, but the synergistic anti-IBV activity of PHI combined with Bai was unclear. Here, the protection of PHI combined with Bai on avian infectious bronchitis virus (IBV) M41 infection and the change of respiratory microbiota and metabolomics profiles in broilers that infected with IBV were investigated. According to the experimental findings, the combination of PHI and Bai effectively alleviated broilers' slowing-growth weight and respiratory symptoms. This was accompanied by a reduction in viral copies and histopathological changes, as well as an increase of antiviral protein (G3BP1) level in tracheas and anti-IBV antibody levels in serum. In addition, 16s RNA sequencing revealed that IBV infection significantly changed respiratory microbiota composition at different taxonomic levels and respiratory metabolism composition in broilers. Interestingly, PHI combined with Bai modulated the composition of respiratory microfloras, especially the abundance of Firmicutes and Lactobacillaceae were upregulated, as well as the abundance of Proteobacteria was downregulated. The metabolomics results indicated that PHI combined with Bai involved in glucose, lipids, amino acids and nucleotide metabolism during IBV infection. In summary, PHI combined with Bai exhibited a synergistic effect on preventing infectious bronchitis (IB), with the protection being closely associated with the composition of respiratory microbiota and metabolites. Therefore, adding the mixture of PHI and Bai to the chicken drinking water is recommended to prevent and control IB in clinical.
    MeSH term(s) Animals ; Chickens ; Infectious bronchitis virus ; DNA Helicases ; Poly-ADP-Ribose Binding Proteins ; RNA Helicases ; RNA Recognition Motif Proteins ; Metabolic Diseases/veterinary ; Coronavirus Infections/prevention & control ; Coronavirus Infections/veterinary ; Poultry Diseases ; Flavonoids ; Lignans
    Chemical Substances phillygenin (886IAL08GN) ; baicalin (347Q89U4M5) ; DNA Helicases (EC 3.6.4.-) ; Poly-ADP-Ribose Binding Proteins ; RNA Helicases (EC 3.6.4.13) ; RNA Recognition Motif Proteins ; Flavonoids ; Lignans
    Language English
    Publishing date 2023-12-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 242586-5
    ISSN 1525-3171 ; 0032-5791
    ISSN (online) 1525-3171
    ISSN 0032-5791
    DOI 10.1016/j.psj.2023.103371
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A randomized double-blind clinical trial: Comparison of oclacitinib with a traditional Chinese herbal medicine product (Dihuang Guiqin capsule) in the treatment of canine atopic dermatitis.

    Qin, Jun-Jie / Zhu, Hao / Song, Zhe-Wen / Hou, Xiao-Jiao / Wang, Xiu-Min / Wang, Lei / Li, Jian-Xi

    Research in veterinary science

    2024  Volume 171, Page(s) 105221

    Abstract: Canine atopic dermatitis (cAD) is a common chronic inflammatory skin disease, which seriously affects the quality of life for both dogs and their owners. Currently, the common therapeutic drugs in the clinic have disadvantages such as obvious adverse ... ...

    Abstract Canine atopic dermatitis (cAD) is a common chronic inflammatory skin disease, which seriously affects the quality of life for both dogs and their owners. Currently, the common therapeutic drugs in the clinic have disadvantages such as obvious adverse effects and high prices. Traditional Chinese herbal medicine (TCHM) has great potential for the treatment of cAD. The aim of this study is to compare the effects of different doses of the TCHM product (Dihuang Guiqin capsule) and oclacitinib in the treatment of cAD through a randomized, double-blind trial. Sixty dogs diagnosed with AD were randomly and evenly divided into four groups (n = 15). The TCHM treatment group consisted of three subgroups that received three different oral doses (20, 40, and 60 mg/kg BW), while the control group received 0.5 mg/kg BW of oclacitinib. Each group was administered twice daily for 14 consecutive days. The results showed that both TCHM and oclacitinib significantly improved cAD-induced itching (evaluated by pVAS) and skin lesions (evaluated by CADESI-04), while interleukin 31 (IL-31) concentrations decreased significantly (P < 0.05) and serum biochemical indicators returned to normal. In particular, The therapeutic effects of TCHM medium- and high-dose groups were similar to those of oclacitinib (P > 0.05). The preliminary recommended dose of Dihuang Guiqin capsule for the treatment of cAD has been determined to be 40-60 mg/kg BW twice daily for 14 consecutive days, which can be reduced to once daily as appropriate. Dihuang Guiqin capsule was safe and well tolerated, which may be a new option for the treatment of cAD.
    MeSH term(s) Dogs ; Animals ; Dermatitis, Atopic/drug therapy ; Dermatitis, Atopic/veterinary ; Drugs, Chinese Herbal/therapeutic use ; Quality of Life ; Pruritus/drug therapy ; Pruritus/veterinary ; Skin Diseases/veterinary ; Dog Diseases/drug therapy ; Dog Diseases/pathology ; Pyrimidines ; Sulfonamides
    Chemical Substances oclacitinib (99GS5XTB51) ; Drugs, Chinese Herbal ; Pyrimidines ; Sulfonamides
    Language English
    Publishing date 2024-03-11
    Publishing country England
    Document type Randomized Controlled Trial, Veterinary ; Journal Article
    ZDB-ID 840961-4
    ISSN 1532-2661 ; 0034-5288
    ISSN (online) 1532-2661
    ISSN 0034-5288
    DOI 10.1016/j.rvsc.2024.105221
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Remarkable effects of silicone rubber on flame retardant property of high-density polyethylene/magnesium hydroxide composites

    Han, Yue / Xu, Siyi / Wang, Aosong / Cheng, Peng / Li, Jianxi / Shen, Liguo / Liu, Hanzhou

    Polymer degradation and stability. 2022 Sept., v. 203

    2022  

    Abstract: In this study, silicone rubber (SR) was introduced into high-density polyethylene/magnesium hydroxide (HDPE/MH) composites by melt blending, and the electron beam irradiation was used to prepare the irradiation crosslinked flame retardant HDPE composites. ...

    Abstract In this study, silicone rubber (SR) was introduced into high-density polyethylene/magnesium hydroxide (HDPE/MH) composites by melt blending, and the electron beam irradiation was used to prepare the irradiation crosslinked flame retardant HDPE composites. The changes of properties of the samples were investigated by melt index test (MI), mechanical property test, thermal stability test (TG/DTG), oxygen index test (LOI) and cone calorimetry (CCT). MI test results indicated that SR can increase the internal lubricity of HDPE composites. The morphology results showed that the SR can promote the interfacial compatibility between MH and HDPE. The test results of mechanical properties further revealed that the addition of SR can effectively improve the continuity between MH and HDPE, which was evidenced by the 240 % increasing of the elongation at break. TGA test results showed that with the continuous increase of SR, the mass loss rate (LR) decreased rapidly, and the residue content increased. When the addition of SR reached 7.5 phr, the LOI was promoted by 27.4 %. CCT results indicated that the addition of SR can effectively inhibit the heat release rate (HRR) and total heat release (THR), but had little effect on the total smoke release (TSP). When 10 phr of SR were added, the content of residue can reach up to 37 %, and the expansion height can reach to 2.2 cm. Conclusively, the SR contributed to significantly synergistic flame retardant property to HDPE composites.
    Keywords calorimetry ; crosslinking ; degradation ; flame retardants ; heat ; irradiation ; magnesium hydroxide ; mechanical properties ; oxygen ; polyethylene ; rubber ; silicone ; smoke ; thermal stability
    Language English
    Dates of publication 2022-09
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1502217-1
    ISSN 0141-3910
    ISSN 0141-3910
    DOI 10.1016/j.polymdegradstab.2022.110061
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Investigation of hindered phenol antioxidant effects on the aging performance of cross-linked LDPE in the presence of copper.

    Li, Jianxi / Zhou, Cheng / Xu, Siyi / Shen, Liguo

    Scientific reports

    2020  Volume 10, Issue 1, Page(s) 10189

    Abstract: In this study, LDPE materials with different kinds of antioxidants were prepared by melt-blending method. To reveal the aging mechanism and the anti-oxidation efficiency of LDPE in the presence of copper, series of characterizations including tensile ... ...

    Abstract In this study, LDPE materials with different kinds of antioxidants were prepared by melt-blending method. To reveal the aging mechanism and the anti-oxidation efficiency of LDPE in the presence of copper, series of characterizations including tensile testing, Fourier transform infrared spectra (FTIR), differential scanning calorimetry (DSC), scanning electronic microscopy (SEM) and computation simulation were performed. The experimental results indicated that the aging process significantly decreased the tensile strength and elongation of those aged samples except 1024, which retarded the aging degradation of LDPE at the same condition. These results were further confirmed by the FTIR analysis with the carbonyl index values. Additionally, the melting peaks of DSC plots became broader and shifted to the lower temperatures during the aging process for S-0, S-3114 and S-1010, whereas no obvious changes were observed for S-1024. Importantly, according to the results obtained from computation simulation, a strong metal-ligand interaction between hydrazide group and copper ions was formed to prevent the further oxidation, which accounted for the excellent anti-oxidation behavior of 1024 for LDPE in the presence of copper.
    Language English
    Publishing date 2020-06-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-020-67131-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Flame-retardant ethylene vinyl acetate composite materials by combining additions of aluminum hydroxide and melamine cyanurate: Preparation and characteristic evaluations.

    Xu, Siyi / Li, Jianxi / Ye, Qunfeng / Shen, Liguo / Lin, Hongjun

    Journal of colloid and interface science

    2021  Volume 589, Page(s) 525–531

    Abstract: There is a great interest to develop efficient fire-resistant materials. While ethylene vinyl acetate (EVA) is a widely used material, it suffers from the problem of relatively high inflammability which seriously hinders its usage as the product material ...

    Abstract There is a great interest to develop efficient fire-resistant materials. While ethylene vinyl acetate (EVA) is a widely used material, it suffers from the problem of relatively high inflammability which seriously hinders its usage as the product material with a high flame-retardant requirement. In this study, a strategy to combine aluminum hydroxide (ATH) and melamine cyanurate (MCA) with EVA was proposed to prepare the EVA composite materials with high flame resistance. It was found that slight addition of MCA could increase the lubricity of EVA and raise the compatibility between EVA and ATH. Thermogravimetric analysis (TGA) indicated that the thermal stability of EVA was improved via adding MCA, which was evidenced by the delayed thermal decomposition temperature. Moreover, the combustion results indicated that the EVA composite with 60 parts per hundred (phr) ATH and 40 phr MCA addition (EVA-60-40) displayed the optimal isolated layer favoring the fire resistance. In addition, the highest limiting oxygen index (LOI) value (27.5%) and V-0 rating of the EVA-60-40 as compared with other components indicated its incombustible nature. These results suggested the synergetic effect of ATH and MCA additions, the high efficiency of the proposed strategy and the wide application prospect of the produced EVA-ATH-MCA composite materials.
    Language English
    Publishing date 2021-01-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2021.01.026
    Database MEDical Literature Analysis and Retrieval System OnLINE

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