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You searched for: Publication year rev 7980-2020 Remove constraint Publication year rev: 7980-2020 Subject term antibiotics Remove constraint Subject term: antibiotics
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1. 220 Exploring the use of mesenchymal stem cells for treatment of mastitis and metritis in cattle

Author:
R. Singh; S. Saini; S. Ansari; S. Jamwal; D. Malakar
Source:
Reproduction, fertility, and development 2020 v.32 no.2 pp. 238
ISSN:
1031-3613
Subject:
adipose tissue; agitation; alkaline phosphatase; animal models; antibiotics; antimicrobial peptides; blood; blood sampling; bovine mastitis; collagenase; cows; culture flasks; cytokines; endometritis; gene expression; genes; immunocytochemistry; inflammation; intravenous injection; mesenchymal stromal cells; mucus; quantitative polymerase chain reaction; somatic cell count; staining; tissue repair; turbidity; zebu
Abstract:
... The present study was carried out to isolate mesenchymal stem cells (MSCs) from adipose tissue of cattle (Bos indicus), characterise them, and apply them for the treatment of mastitis and metritis in the cow. Cattle MSCs were isolated from adipose tissue near the loin region of cow. Isolated adipose tissue was subjected to enzymatic digestion using 2% collagenase with agitation at regular interval ...
DOI:
10.1071/RDv32n2Ab220

2. 3-D DNA nanodevices for on-site sensitive detection of antibiotic residues in food

Author:
Xiaowen Liu; Xia Li; Liping Jia; Guigaung Cheng; David Tai Leong; Qingwang Xue
Source:
Chemical communications 2020 v.56 no.83 pp. 12628-12631
ISSN:
1364-548X
Subject:
DNA; antibiotics; aptasensors; food quality; human health
Abstract:
... Developing convenient and sensitive detection methods for antibiotic residues in food is beneficial for ensuring food quality and human health. The tough challenges that limit the development of sensitive, quantitative, portable, on-the-spot antibiotic detectors are the lack of simple and effective target recognition and signal amplification strategies, and direct digital quantification. Herein, w ...
DOI:
10.1039/d0cc05411a

3. Paenibacillus alvei MP1 as a Producer of the Proteinaceous Compound with Activity against Important Human Pathogens, Including Staphylococcus aureus and Listeria monocytogenes

Author:
Magdalena Pajor; Zirui Ray Xiong; Randy W. Worobo; Piotr Szweda
Source:
Pathogens 2020 v.9 no.5 pp. -
ISSN:
2076-0817
Subject:
Escherichia coli; Gram-negative bacteria; Listeria monocytogenes; Paenibacillus alvei; Staphylococcus aureus; ammonium sulfate; animal pathogens; antibiotic resistance; antibiotics; antimicrobial properties; buckwheat honey; heat stability; heat treatment; mass spectrometry; metabolites; peptides; proteinases; research; virulent strains
Abstract:
... An emerging need for new classes of antibiotics is, on the one hand, evident as antimicrobial resistance continues to rise. On the other hand, the awareness of the pros and cons of chemically synthesized compounds’ extensive use leads to a search for new metabolites in already known reservoirs. Previous research showed that Paenibacillus strain (P. alvei MP1) recovered from a b ...
DOI:
10.3390/pathogens9050319

4. A Dual-Mechanism Antibiotic Kills Gram-Negative Bacteria and Avoids Drug Resistance

Author:
James K. Martin; Joseph P. Sheehan; Benjamin P. Bratton; Gabriel M. Moore; André Mateus; Sophia Hsin-Jung Li; Hahn Kim; Joshua D. Rabinowitz; Athanasios Typas; Mikhail M. Savitski; Maxwell Z. Wilson; Zemer Gitai
Source:
Cell 2020 v.181 no.7 pp. 1518-1532.e14
ISSN:
0092-8674
Subject:
Gram-negative bacteria; Gram-positive bacteria; Neisseria gonorrhoeae; antibiotic resistance; image analysis; mechanism of action; metabolomics; methicillin; methicillin-resistant Staphylococcus aureus; mice; models; pathogens; proteomics; vitamin metabolism
Abstract:
... The rise of antibiotic resistance and declining discovery of new antibiotics has created a global health crisis. Of particular concern, no new antibiotic classes have been approved for treating Gram-negative pathogens in decades. Here, we characterize a compound, SCH-79797, that kills both Gram-negative and Gram-positive bacteria through a unique dual-targeting mechanism of action (MoA) with undet ...
DOI:
10.1016/j.cell.2020.05.005

5. A Nanomaterial-Based Biosensor for the Quantitative Detection of Enrofloxacin Residues in Raw Chicken

Author:
Yafang Shen; Yawen He; Yingchun Fu; Jianping Wang; Jianmin Zhang; Ming Liao; Yanbin Li
Source:
Transactions of the ASABE v.63 no.6 pp. 1869-1878
ISSN:
2151-0032
Subject:
European Union; adsorption; animal-based foods; antibiotics; antibodies; biosensors; chicken meat; chickens; cost effectiveness; detection limit; enrofloxacin; fluorescence; food safety; food supply chain; human health; maximum residue limits; rapid methods; raw chicken meat; wavelengths; China
Abstract:
... HighlightsA nanobiosensor was developed for rapid detection of enrofloxacin residues in chicken meat.5-Sulfosalicylic acid was adopted in a facile method for pretreatment of chicken meat samples.The detection limit of 14.1 µg kg-1 was below the maximum residue limit for chicken meat.The total detection time from sample pretreatment to result report was less than 1.5 h.Abstract. Antibiotic residues ...
DOI:
10.13031/trans.13874

6. A Siderophore Analog of Fimsbactin from Acinetobacter Hinders Growth of the Phytopathogen Pseudomonas syringae and Induces Systemic Priming of Immunity in Arabidopsis thaliana

Author:
Fabrice Betoudji; Taha Abd El Rahman; Marvin J. Miller; Manuka Ghosh; Mario Jacques; Kamal Bouarab; François Malouin
Source:
Pathogens 2020 v.9 no.10 pp. -
ISSN:
2076-0817
Subject:
Acinetobacter; Arabidopsis thaliana; Bacillus subtilis; Pseudomonas syringae; antibacterial properties; antibiotics; chemical structure; elicitors; endpoints; immunity; infection; ligands; microbial load; models; plant growth-promoting rhizobacteria; plant pathogens; quantitative polymerase chain reaction; siderophores; soil; tomatoes
Abstract:
... Siderophores produced in soil by plant growth-promoting rhizobacteria (PGPRs) play several roles, including nutrient mobilizers and can be useful as plants defense elicitors. We investigated the role of a synthetic mixed ligand bis-catechol-mono-hydroxamate siderophore (SID) that mimics the chemical structure of a natural siderophore, fimsbactin, produced by Acinetobacter spp. in the resistance ag ...
DOI:
10.3390/pathogens9100806

7. A UK-based survey of cat owners’ perceptions and experiences of antibiotic usage

Author:
Jennifer Stallwood; Alex Shirlow; Angie Hibbert
Source:
Journal of feline medicine and surgery 2020 v.22 no.2 pp. 69-76
ISSN:
1532-2750
Subject:
antibiotic resistance; antibiotics; attitudes and opinions; bacterial infections; cats; decision making; diagnostic techniques; drug therapy; education; guidelines; medicine; pet ownership; social networks; surveys; veterinarians; veterinary clinics; veterinary drugs; United Kingdom
Abstract:
... The aim of this study was to explore owners’ knowledge of antibiotics, experience of antibiotic use in their cats and involvement in decision-making regarding antibiotic prescriptions. Cat owners were recruited via social media and veterinary practices to complete a survey designed to evaluate general knowledge of antibiotics, attitudes to antibiotic stewardship and experiences of antibiotic use i ...
DOI:
10.1177/1098612X19826353

8. A YajQ‐LysR‐like, cyclic di‐GMP‐dependent system regulating biosynthesis of an antifungal antibiotic in a crop‐protecting bacterium, Lysobacter enzymogenes

Author:
Sen Han; Danyu Shen; Yu‐Chuan Wang; Shan‐Ho Chou; Mark Gomelsky; Yong‐Gui Gao; Guoliang Qian
Source:
Molecular plant pathology 2020 v.21 no.2 pp. 218-229
ISSN:
1464-6722
Subject:
DNA; Lysobacter enzymogenes; Xanthomonas campestris; antibiotics; bacteria; binding proteins; biological control agents; biosynthesis; fungi; heat stability; operon; pathogens; promoter regions; second messengers; transcription (genetics); transcription factors; virulence
Abstract:
... YajQ, a binding protein of the universal bacterial second messenger cyclic di‐GMP (c‐di‐GMP), affects virulence in several bacterial pathogens, including Xanthomonas campestris. In this bacterium, YajQ interacts with the transcription factor LysR. Upon c‐di‐GMP binding, the whole c‐di‐GMP‐YajQ‐LysR complex is found to dissociate from DNA, resulting in virulence gene regulation. Here, we identify a ...
DOI:
10.1111/mpp.12890
PubMed:
31747123
PubMed Central:
PMC6988422

9. A broad-spectrum phage controls multidrug-resistant Salmonella in liquid eggs

Author:
Zhiwei Li; Wenjuan Ma; Wanning Li; Yifeng Ding; Yu Zhang; Qile Yang; Jia Wang; Xiaohong Wang
Source:
Food research international 2020 v.132 pp. 109011
ISSN:
0963-9969
Subject:
DNA; Myoviridae; Salmonella; antibiotic resistance; antibiotics; biological control; egg yolk; eggs; food industry; food matrix; food pathogens; genes; globalization; heat tolerance; latent period; liquid egg white; multiple drug resistance; pH; phages; phylogeny; public health; salmonellosis; sequence analysis; technology; virulence
Abstract:
... Salmonella is a foodborne pathogen constantly threating public health. The widespread use of antibiotics and globalization of the food industry result in rapid growth of drug-resistance. Eggs contaminated by multidrug-resistant (MDR) Salmonella are one of the riskiest factors of salmonellosis, which are frequently associated with outbreaks worldwide. Thus, there are increasing needs for the develo ...
DOI:
10.1016/j.foodres.2020.109011

10. A chitosan gold nanoparticles molecularly imprinted polymer based ciprofloxacin sensor

Author:
Sandeep G. Surya; Shahjadi Khatoon; Abdellatif Ait Lahcen; An T. H. Nguyen; Boris B. Dzantiev; Nazia Tarannum; Khaled N. Salama
Source:
RSC advances 2020 v.10 no.22 pp. 12823-12832
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; antibiotics; atomic force microscopy; biomimetics; chemical composition; chitosan; ciprofloxacin; detection limit; drug formulations; electrochemistry; glassy carbon electrode; milk; mineral water; molecular imprinting; nanogold; norfloxacin; ofloxacin; polymers; roughness; tap water; voltammetry
Abstract:
... In this work, we present a novel study on the development of an electrochemical biomimetic sensor to detect the ciprofloxacin (CIP) antibiotic. A chitosan gold nanoparticles decorated molecularly imprinted polymer (Ch-AuMIP) was used to modify the glassy carbon electrode (GCE) for preparation of the sensor. The Ch-AuMIP was characterized to understand various properties like chemical composition, ...
DOI:
10.1039/d0ra01838d

11. A cluster of Chlamydia serpentis cases in captive snakes

Author:
K. Laroucau; R. Aaziz; A. Lécu; S. Laidebeure; O. Marquis; F. Vorimore; S. Thierry; A. Briend-Marchal; J. Miclard; A. Izembart; N. Borel; L. Redon
Source:
Veterinary microbiology 2020 v.240 pp. 108499
ISSN:
0378-1135
Subject:
Chlamydia; antibiotics; bacterial shedding; genes; histology; marbofloxacin; mortality; nucleotide sequences; polymerase chain reaction; snakes; surveys; tissues; zoo animals; zoos
Abstract:
... Following the occurrence of sudden death cases in a zoo reptile collection, histological analyses conducted on tissues from two common adders suggested an infection due to Chlamydia. The survey was extended to 22 individual snakes from the same collection and a PCR analysis targeting a conserved gene in Chlamydiaceae revealed bacterial shedding in six of them. The infection resolved spontaneously ...
DOI:
10.1016/j.vetmic.2019.108499

12. A comparative study of essential oil profile, antibacterial and antioxidant activities of two cultivated Ziziphora species (Z. clinopodioides and Z. tenuior)

Author:
Saeid Hazrati; Mostafa Govahi; Mojde Sedaghat; Arman Beyraghdar Kashkooli
Source:
Industrial crops and products 2020 v.157 pp. 112942
ISSN:
0926-6690
Subject:
Ziziphora clinopodioides; antibacterial properties; antibiotics; antioxidants; chemical composition; comparative study; essential oils; food preservatives; industry; limonene; medicinal plants; medicine; menthone; phenols
Abstract:
... The genus Ziziphora belongs to Lamiaceae family being known as an aromatic medicinal plant. The Lamiaceae family has several species which are of great importance in pharmaceutical, food and cosmetic industry, as well as in traditional and modern medicine. In this manuscript we analyzed the chemical composition of the essential oils (EOs) isolated from the aerial flowering organs of cultivated Ziz ...
DOI:
10.1016/j.indcrop.2020.112942

13. A compound plant extract and its antibacterial and antioxidant properties in vitro and in vivo

Author:
Xin Tao; Yuqing Sun; Xiaoming Men; Ziwei Xu
Source:
3 Biotech 2020 v.10 no.12 pp. 532
ISSN:
2190-572X
Subject:
Artemisia argyi; Escherichia coli; Euodia; Punica granatum; Salmonella; Schisandra; antibiotics; antioxidants; average daily gain; blood; catalase; erythrocyte count; feed additives; feed intake; feeds; leukocyte count; malondialdehyde; mortality; paratyphoid; plant extracts; superoxide dismutase
Abstract:
... The present study was conducted to prepare a compound plant extract as a candidate animal feed additive. Firstly, Evodia rutaecarpa (ER), Schisandra sphenanthera (SS), Punica granatum (PG) and Artemisia argyi (AA) were screened out from 17 plants as materials of candidate compound plant extracts by measuring the antibacterial rate on Escherichia coli and Salmonella paratyphoid, and the scavenging ...
DOI:
10.1007/s13205-020-02529-2

14. A health metadata-based management approach for comparative analysis of high-throughput genetic sequences for quantifying antimicrobial resistance reduction in Canadian hog barns

Author:
Samuel M. Chekabab; John R. Lawrence; Alvin Alvarado; Bernardo Predicala; Darren R. Korber
Source:
Computational and Structural Biotechnology Journal 2020 v.18 pp. 2629-2638
ISSN:
2001-0370
Subject:
animal health; antibiotic resistance; antibiotic resistance genes; antibiotics; biotechnology; feeds; information management; metadata; pathogens; pork industry; swine; swine production
Abstract:
... New Canadian regulations have required that all use of antibiotics in livestock animal production should be under veterinary prescription and oversight, while the prophylactic use and inclusion of these agents in animal feed as growth promoters are also banned. In response to this new rule, many Canadian animal producers have voluntarily implemented production practices aimed at producing animals ...
DOI:
10.1016/j.csbj.2020.09.012

15. A highly sensitive monoclonal antibody−based paper sensor for simultaneously detecting valnemulin and tiamulin in porcine liver

Author:
Guanqiong Na; Xiaofei Hu; Yaning Sun; Sharon Kwee; Guangxu Xing; Yunrui Xing; Gaiping Zhang
Source:
Journal of food science 2020 v.85 no.6 pp. 1681-1688
ISSN:
0022-1147
Subject:
animal growth; antibiotics; antigens; bacterial infections; blood proteins; cattle; detection limit; equations; feed additives; food animals; immunoaffinity chromatography; immunoassays; inhibitory concentration 50; liver; monitoring; monoclonal antibodies; paper; rapid methods; screening; sensors (equipment); swine; swine diseases; tiamulin
Abstract:
... Valnemulin (VAL) and tiamulin (TIA) are pleuromutilin antibiotics used primarily for treating bacterial infections in swine or other food animals. Furthermore, VAL and TIA are also employed as feed additives to promote animal growth. However, the illegal use of VAL and TIA could cause a series of hazards to consumers. Here, VAL was designed to be conjugated with bovine serum protein to prepare imm ...
DOI:
10.1111/1750-3841.15136

16. A potential flavor culture: Lactobacillus harbinensis M1 improves the organoleptic quality of fermented soymilk by high production of 2,3-butanedione and acetoin

Author:
Yin Zheng; Yongtao Fei; Yue Yang; Zekun Jin; Baoning Yu; Li Li
Source:
Food microbiology 2020 v.91 pp. 103540
ISSN:
0740-0020
Subject:
Lactobacillus casei; Lactobacillus fermentum; Lactobacillus mucosae; Lactobacillus rhamnosus; Streptococcus thermophilus; acetoin; antibiotic resistance; antibiotics; coculture; fermentation; flavor; food pathogens; gas chromatography-mass spectrometry; gastric juice; genes; kefir; lactic acid bacteria; probiotics; soymilk; starter cultures; tofu; whey
Abstract:
... Lactic acid bacteria (LAB) are commonly used in soymilk fermentation to improve health-related functionality, but their contribution to sensory qualities is less valued. We characterized Lactobacillus harbinensis M1, Lactobacillus mucosae M2, Lactobacillus fermentum M4, Lactobacillus casei M8 and Lactobacillus rhamnosus C1 from naturally-fermented tofu whey, along with Streptococcus thermophilus S ...
DOI:
10.1016/j.fm.2020.103540

17. A proteomic study of resistance to Brown Ring disease in the Manila clam, Ruditapes philippinarum

Author:
M. Smits; S. Artigaud; B. Bernay; V. Pichereau; L. Bargelloni; C. Paillard
Source:
Fish & shellfish immunology 2020 v.99 pp. 641-653
ISSN:
1050-4648
Subject:
Ruditapes philippinarum; Vibrio tapetis; amino acid sequences; antibiotics; bacteria; clams; defense mechanisms; disease control; disinfection; energy metabolism; homeostasis; host-pathogen relationships; infectious diseases; juveniles; liquid chromatography; lysosomes; mass spectrometry; mollusc culture; pathogens; phenotype; protein content; proteins; proteomics; transcriptome
Abstract:
... Marine mollusk aquaculture has more than doubled over the past twenty years, accounting for over 15% of total aquaculture production in 2016. Infectious disease is one of the main limiting factors to the development of mollusk aquaculture, and the difficulties inherent to combating pathogens through antibiotic therapies or disinfection have led to extensive research on host defense mechanisms and ...
DOI:
10.1016/j.fsi.2020.02.002

18. A review of emerging organic contaminants (EOCs), antibiotic resistant bacteria (ARB), and antibiotic resistance genes (ARGs) in the environment: Increasing removal with wetlands and reducing environmental impacts

Author:
Joan García; María Jesús García-Galán; John W. Day; Raj Boopathy; John R. White; Scott Wallace; Rachael G. Hunter
Source:
Bioresource technology 2020 v.307 pp. 123228
ISSN:
0960-8524
Subject:
antibiotic resistance; antibiotic resistance genes; antibiotics; bacteria; chemical compounds; constructed wetlands; ecosystems; environmental impact; flame retardants; hormones; humans; personal care products; pesticides; plasticizers; surfactants; wastewater; wastewater treatment
Abstract:
... Emerging organic contaminants (EOCs) include a diverse group of chemical compounds, such as pharmaceuticals and personal care products (PPCPs), pesticides, hormones, surfactants, flame retardants and plasticizers. Many of these compounds are not significantly removed in conventional wastewater treatment plants and are discharged to the environment, presenting an increasing threat to both humans an ...
DOI:
10.1016/j.biortech.2020.123228

19. A self-calibrating dual responsive platform for the sensitive detection of sulfite and sulfonic derivatives based on a robust Hf(iv) metal–organic framework

Author:
Kai Xing; Rui-Qing Fan; Xiao-Yuan Liu; Shuang Gai; Wei Chen; Yu-Lin Yang; Jing Li
Source:
Chemical communications 2020 v.56 no.4 pp. 631-634
ISSN:
1364-548X
Subject:
antibiotics; coordination polymers; fluorescence; hafnium; protonation; pyridines; sulfamethazine; sulfites; synergism
Abstract:
... A robust hafnium-based metal organic framework, Hf-PBTA, with sensitive and self-calibrating dual-emissive fluorescence response towards sulfite and sulfonic derivatives, including antibiotic sulfamethazine, has been developed, which shows fast detection of sulfite ions at a concentration as low as 76 ppb. The opposite response tendency from two radiative pathways towards aromatic sulfonic molecul ...
DOI:
10.1039/c9cc07869j

20. A trade-off between adsorption and photocatalysis over ZIF-derived composite

Author:
Soumitra Payra; K. Likhitha Reddy; Rohit S. Sharma; Shreya Singh; Sounak Roy
Source:
Journal of hazardous materials 2020 v.393 pp. 122491
ISSN:
0304-3894
Subject:
adsorbents; adsorption; antibiotics; carbon; composite materials; coordination compounds; hydroxyl radicals; mineralization; photocatalysis; photocatalysts; photolysis; porosity; surface area; zinc oxide
Abstract:
... The adsorption with highly porous adsorbents is an efficient technique to trap the uncontrolled release of antibiotics in the environment, however, mere adsorption does not mineralize the discharged antibiotics. On the contrary, the regular photocatalysts completely mineralize the antibiotics, however suffers from high efficiency due to comparatively low surface area and porosity. In this work, a ...
DOI:
10.1016/j.jhazmat.2020.122491

21. Acceptor substrate determines donor specificity of an aromatic prenyltransferase: expanding the biocatalytic potential of NphB

Author:
Bryce P. Johnson; Erin M. Scull; Dustin A. Dimas; Tejaswi Bavineni; Chandrasekhar Bandari; Andrea L. Batchev; Eric D. Gardner; Susan L. Nimmo; Shanteri Singh
Source:
Applied microbiology and biotechnology 2020 v.104 no.10 pp. 4383-4395
ISSN:
0175-7598
Subject:
alkylation; antibiotics; biocatalysis; biocatalysts; cannabinoids; dimethylallyltranstransferase; drugs; regioselectivity
Abstract:
... Aromatic prenyltransferases are known for their extensive promiscuity toward aromatic acceptor substrates and their ability to form various carbon-carbon and carbon-heteroatom bonds. Of particular interest among the prenyltransferases is NphB, whose ability to geranylate cannabinoid precursors has been utilized in several in vivo and in vitro systems. It has therefore been established that prenylt ...
DOI:
10.1007/s00253-020-10529-8
PubMed:
32189045
PubMed Central:
PMC7190591

22. Acibenzolar-S-methyl activates stomatal-based defense against Pseudomonas cannabina pv. alisalensis in cabbage

Author:
Takako Ishiga; Yumi Iida; Nanami Sakata; Tsutomu Ugajin; Tetsuya Hirata; Shizuku Taniguchi; Keisuke Hayashi; Yasuhiro Ishiga
Source:
Journal of general plant pathology 2020 v.86 no.1 pp. 48-54
ISSN:
1345-2630
Subject:
Brassica oleracea; Pseudomonas; acibenzolar-S-methyl; antibiotics; blight; cabbage; copper; disease control; genetic markers; pathogens; soil drenching; systemic acquired resistance; Japan
Abstract:
... Pseudomonas cannabina pv. alisalensis (Pcal), which causes bacterial blight of brassicaceous plants, is an economically important pathogen worldwide. Copper fungicide and antibiotics are major strategies to manage the disease caused by Pcal; however, a Pcal strain resistant to these chemicals has already been found, and severe outbreaks of bacterial blight have been reported on cabbage in Japan. T ...
DOI:
10.1007/s10327-019-00883-5

23. Acrophiarin (antibiotic S31794/F‐1) from Penicillium arenicola shares biosynthetic features with both Aspergillus‐ and Leotiomycete‐type echinocandins

Author:
Nan Lan; Bruno Perlatti; Daniel J. Kvitek; Philipp Wiemann; Colin J. B. Harvey; Jens Frisvad; Zhiqiang An; Gerald F. Bills
Source:
Environmental microbiology 2020 v.22 no.6 pp. 2292-2311
ISSN:
1462-2912
Subject:
Aspergillus; Penicillium; antibiotics; biosynthesis; echinocandins; glutamine; horizontal gene transfer; hydroxylation; iron; lipopeptides; multigene family; phylogeny; serine; threonine
Abstract:
... The antifungal echinocandin lipopeptide, acrophiarin, was circumscribed in a patent in 1979. We confirmed that the producing strain NRRL 8095 is Penicillium arenicola and other strains of P. arenicola produced acrophiarin and acrophiarin analogues. Genome sequencing of NRRL 8095 identified the acrophiarin gene cluster. Penicillium arenicola and echinocandin‐producing Aspergillus species belong to ...
DOI:
10.1111/1462-2920.15004

24. Activation of persulfate by biochar from spent malt rootlets for the degradation of trimethoprim in the presence of inorganic ions

Author:
Eleni Grilla; John Vakros; Ioannis Konstantinou; Ioannis D Manariotis; Dionissios Mantzavinos
Source:
Journal of chemical technology and biotechnology 2020 v.95 no.9 pp. 2348-2358
ISSN:
0268-2575
Subject:
antibiotics; aromatic compounds; biochar; biotechnology; carbon; catalysts; degradation; electron transfer; free radicals; hydroxylation; inorganic ions; malt; occurrence; organic matter; oxidation; pH; pollutants; sodium; solar radiation; sulfates; surface area; trimethoprim; ultrasonics; wastewater; water; water quality
Abstract:
... BACKGROUND: Antibiotics such as trimethoprim (TMP) are used in large quantities and recent studies show that TMP is not eliminated completely in wastewater from municipal treatment plants. Advanced oxidation processes (AOPs), especially sulfate radical‐based AOPs, are highly reactive in the presence of a catalyst. Biochar, a green and low‐cost carbon material, is an excellent catalyst to degrade p ...
DOI:
10.1002/jctb.6513

25. Active packaging film containing oregano essential oil microcapsules and their application for strawberry preservation

Author:
Li Li; Wenlong Song; Chunhua Shen; Qingfeng Dong; Yifen Wang; Sheng Zuo
Source:
Journal of food processing and preservation 2020 v.44 no.10 pp. e14799
ISSN:
0145-8892
Subject:
acetates; antibiotics; carbon dioxide; cold chain; extrusion; firmness; hydrogen peroxide; income; malondialdehyde; metabolism; nuclear magnetic resonance spectroscopy; oregano oil; oxygen; permeability; polyethylene; shelf life; spoilage; strawberries; titratable acidity; water content
Abstract:
... An active packaging film based on low‐density polyethylene (LDPE)/ethylene‐vinyl acetate (EVA) copolymer was prepared. Oregano essential oil microcapsules were prepared by spray drying and added as active antibacterial ingredients to the LDPE/EVA film by melt blending and extrusion casting and enhanced the moisture permeability and gas permeability of the film. The active packaging film effectivel ...
DOI:
10.1111/jfpp.14799

26. Acute Toxicity, Bioaccumulation, and Bioreduction of Two Antibiotics, Norfloxacin and Ofloxacin, in the Snail Bellamya aeruginosa

Author:
Shuwen He; Qinyu Sun; Yu Liu; Ling Li; Xiangfei Yang
Source:
Water, air, and soil pollution 2020 v.231 no.3 pp. 96
ISSN:
0049-6979
Subject:
Bellamya aeruginosa; acute toxicity; adults; antibiotics; aquatic animals; benthic organisms; bioaccumulation factor; depuration; maximum residue limits; median effective concentration; norfloxacin; ofloxacin; risk; sediments; snails; subchronic exposure
Abstract:
... Fluoroquinolones (FQs) present in water environments pose threats to aquatic organisms. The concentration of FQs adsorbed onto sediments is generally higher than that in water. Here, we studied the toxicities of two FQ antibiotics, norfloxacin (NOR) and ofloxacin (OFL), on the snail Bellamya aeruginosa, an adaptable benthic animal. For this, we performed acute toxicity experiments on young snails ...
DOI:
10.1007/s11270-020-4458-5

27. Adipostatins E-J, new potent antimicrobials identified as inhibitors of coenzyme-A biosynthesis

Author:
Lyanne Gómez-Rodríguez; Pamela J. Schultz; Giselle Tamayo-Castillo; Garry D. Dotson; David H. Sherman; Ashootosh Tripathi
Source:
Tetrahedron letters 2020 v.61 no.5 pp. 151469
ISSN:
0040-4039
Subject:
Streptomyces; antibiotics; bacteria; biosynthesis; chemical reactions; chemical structure; coenzyme A; cysteamine; drugs; enzymes; inhibitory concentration 50; virulent strains
Abstract:
... Phosphopantetheine is a key structural element in biological acyl transfer reactions found embedded within coenzyme A (CoA). Phosphopantothenoylcysteine synthetase (PPCS) is responsible for installing a cysteamine group within phosphopantetheine. Therefore, it holds considerable potential as a drug target for developing new antimicrobials. In this study, we adapted a biochemical assay specific for ...
DOI:
10.1016/j.tetlet.2019.151469

28. Administration of a Nutraceutical Mixture Composed by Aloe arborescens, Annona muricata, Morinda citrifolia, Beta rubra, Scutellaria baicalensis, and Vaccinium myrtillus Reduces Doxorubicin-Induced Side Effects

Author:
Natasha Irrera; Giovanni Pallio; Federica Mannino; Rosario Gugliotta; Daniela Metro; Domenica Altavilla; Francesco Squadrito
Source:
Nutrition and cancer 2020 v.72 no.2 pp. 343-351
ISSN:
1532-7914
Subject:
Aloe arborescens; Annona muricata; Morinda citrifolia; Scutellaria baicalensis; Vaccinium myrtillus; adverse effects; anti-inflammatory activity; antibiotics; antioxidants; blood; body weight; dietary supplements; doxorubicin; drug therapy; food intake; heart; liver; oxidative stress; patients; protective effect; quality of life; rats; toxicity
Abstract:
... The antibiotic doxorubicin is often used as an anti-neoplastic drug; however, many patients showed very unpleasant side-effects. Previous studies have demonstrated that dietary substances such as Aloe arborescens, Annona muricata, Morinda citrifolia, Beta rubra, Scutellaria baicalensis, and Vaccinium myrtillus may have anti-oxidant, anti-proliferative, and anti-inflammatory effects. The purpose of ...
DOI:
10.1080/01635581.2019.1633364

29. Administration of direct-fed Bacillus cultures and refined functional carbohydrates to broiler chickens improves growth performance and promotes positive shifts in gastrointestinal microbiota

Author:
L.K. Froebel; S. Jalukar; T.A. Lavergne; C.D. Coufal; T. Duong
Source:
Journal of applied poultry research 2020 v.29 no.4 pp. 765-774
ISSN:
1056-6171
Subject:
Bacillus (bacteria); Campylobacter; Saccharomyces; antibiotics; growth performance; humans; intestinal microorganisms; lactic acid; poultry production; prebiotics; research
Abstract:
... Due to regulation and consumer-driven decreases in the use of antibiotics, there is a critical need for the development of alternatives to antibiotic growth promoters (AGP) for use in poultry production. Direct-fed microorganisms (DFM) and prebiotics, which have been demonstrated to improve growth performance and microbial safety of poultry, are thought to be potentially important alternatives to ...
DOI:
10.1016/j.japr.2020.06.004

30. Adsorption Characteristics of Synthesized Polyelectrolytes onto Alumina Nanoparticles and their Application in Antibiotic Removal

Author:
Thi-Huong Dao; Thi-Quynh-Mai Vu; Ngoc-Trung Nguyen; Thu-Thao Pham; Thi-Lien Nguyen; Shin-ichi Yusa; Tien-Duc Pham
Source:
Langmuir 2020 v.36 no.43 pp. 13001-13011
ISSN:
1520-5827
Subject:
Fourier transform infrared spectroscopy; adsorption; aluminum oxide; antibiotics; ciprofloxacin; electrolytes; gel chromatography; hospitals; models; nuclear magnetic resonance spectroscopy; pH; sulfonic acids; wastewater
Abstract:
... The present study aims to investigate the adsorption of synthesized poly(2-acrylamide-2-methylpropane sulfonic acid) (PAMPs) onto alumina nanoparticles and their application in the removal of ciprofloxacin (CFX) antibiotic from a water environment. The PAMPs were successfully synthesized and characterized by nuclear magnetic resonance and gel-permeation chromatography methods. The number- and weig ...
DOI:
10.1021/acs.langmuir.0c02352

31. Adsorption/desorption of sulfamethoxypyridazine and enrofloxacin in agricultural soils

Author:
C. Álvarez-Esmorís; M. Conde-Cid; G. Ferreira-Coelho; M.J. Fernández-Sanjurjo; A. Núñez-Delgado; E. Álvarez-Rodríguez; M. Arias-Estévez
Source:
Science of the total environment 2020 v.706 pp. 136015
ISSN:
0048-9697
Subject:
adsorption; agricultural soils; antibiotics; desorption; enrofloxacin; equations; exchangeable magnesium; nitrogen content; public health; regression analysis; risk; soil organic carbon; soil pollution; sorption isotherms; variance; vines
Abstract:
... Adsorption and desorption processes were studied for the antibiotics sulfamethoxypyridazine (SMP) and enrofloxacin (ENR) in 20 agricultural soils devoted to wheat-potato and vine cultivation. Batch experiments were used to conduct kinetic studies, as well as to evaluate adsorption and desorption for different concentrations of antibiotics. The results indicated that adsorption curves were linear f ...
DOI:
10.1016/j.scitotenv.2019.136015

32. Adsorptive interaction of antibiotic ciprofloxacin on polyethylene microplastics: Implications for vector transport in water

Author:
Thilakshani Atugoda; Hasintha Wijesekara; D.R.I.B. Werellagama; K.B.S.N. Jinadasa; Nanthi S. Bolan; Meththika Vithanage
Source:
Environmental technology & innovation 2020 v.19 pp. 100971
ISSN:
2352-1864
Subject:
adsorption; antibiotics; aquatic environment; ciprofloxacin; dissolved organic matter; environmental technology; humic acids; hydrophobicity; ionic strength; microplastics; models; pH; polyethylene; sorption isotherms
Abstract:
... This study investigates the adsorption behavior of Ciprofloxacin (CPX) antibiotic on polyethylene (PE) microplastics through batch adsorption experiments under various environmental conditions, i.e., ionic strengths, pH and in the presence of dissolved organic matter (DOM). The adsorption of CPX showed a gradual increase with increasing pH reaching the maximum adsorption at pH 6.5–7.5 and then dec ...
DOI:
10.1016/j.eti.2020.100971

33. Advantage of zinc oxide nanoparticles over silver nanoparticles for the management of Aeromonas veronii infection in Xiphophorus hellerii

Author:
Soumya Das; R. Aswani; Sebastian Jose Midhun; E.K. Radhakrishnan; Jyothis Mathew
Source:
Microbial pathogenesis 2020 v.147 pp. 104348
ISSN:
0882-4010
Subject:
Aeromonas veronii; Xiphophorus; antibacterial properties; antibiotic resistance; antibiotics; disease control; fish diseases; fish industry; gills; histology; histopathology; in vivo studies; intestines; lethal dose 50; liver; nanoparticles; nanosilver; ornamental fish; pathogens; silver; survival rate; zinc oxide
Abstract:
... Bacterial pathogens cause significant challenge to the ornamental fish industry. Eventhough antibiotic administration has been recommended to manage fish diseases, there is alarming concern with emergence of antibiotic resistance. This indicates the need for the development of alternative methods with multi-targeted action to manage fish diseases. In the study, silver (AgNPs) and zinc oxide (ZnONP ...
DOI:
10.1016/j.micpath.2020.104348

34. Aetiology, diagnosis, treatment and outcome of traumatic reticuloperitonitis in cattle

Author:
Ueli Braun; Christian Gerspach; Stefanie Ohlerth; Sonja Warislohner; Karl Nuss
Source:
veterinary journal 2020 v.255 pp. 105424
ISSN:
1090-0233
Subject:
abdomen; anorexia; antibiotics; clinical examination; coagulation; cows; etiology; euthanasia; fever; fibrinogen; foreign bodies; glutaraldehyde; image analysis; inflammation; leukocyte count; magnetic materials; medical treatment; milk production; monitoring; pain; protein content; radiography; reticulum; rumen; surgery; ultrasonography
Abstract:
... Traumatic reticuloperitonitis (TRP) in cattle is caused by ingested nails, pieces of wire, and other nonmetallic materials that injure the reticular wall. Clinical signs of acute TRP may include anorexia, fever, drop in milk production, rumen atony and tympany, abdominal pain, an arched back, a tucked up and “guarded” abdomen and spontaneous grunting, but may be obscure or absent in chronic cases. ...
DOI:
10.1016/j.tvjl.2020.105424

35. Agar/κ-carrageenan/montmorillonite nanocomposite hydrogels for wound dressing applications

Author:
Tülin Gürkan Polat; Osman Duman; Sibel Tunç
Source:
International journal of biological macromolecules 2020 v.164 pp. 4591-4602
ISSN:
0141-8130
Subject:
Escherichia coli; analgesics; antibacterial properties; antibiotics; chloramphenicol; glucose; hydrogels; lidocaine; nanocomposites; sodium chloride; toxicity testing; urine
Abstract:
... In this study, agar/κ-carrageenan/montmorillonite (MMT) hydrogels were prepared to examine their usability as wound dressing materials and to see the effect of MMT amount on some properties of agar/κ-carrageenan hydrogel materials. Hydrogels were characterized by SEM-EDX, TEM and DSC analyses. By increasing the MMT content within hydrogel matrix from 0% to 5%, the decomposition temperature of the ...
DOI:
10.1016/j.ijbiomac.2020.09.048

36. Allicin pharmacology: Common molecular mechanisms against neuroinflammation and cardiovascular diseases

Author:
Feres José Mocayar Marón; Alejandra Beatriz Camargo; Walter Manucha
Source:
Life sciences 2020 v.249 pp. 117513
ISSN:
0024-3205
Subject:
Allium sativum; allicin; antibiotics; antineoplastic activity; antioxidants; antiparasitic agents; bioactive compounds; cardiovascular diseases; garlic; inflammation; mitochondria; nephroprotective effect; odors; oxidative stress; spices; sulfenic acids; therapeutics; thioesters; traditional medicine
Abstract:
... According to investigations in phytomedicine and ethnopharmacology, the therapeutic properties of garlic (Allium sativum) have been described by ancestral cultures. Notwithstanding, it is of particular concern to elucidate the molecular mechanisms underlying this millenary empirical knowledge. Allicin (S-allyl prop-2-ene-1-sulfinothioate), a thioester of sulfenic acid, is one of the main bioactive ...
DOI:
10.1016/j.lfs.2020.117513

37. An Integrated LC-MS/MS Strategy for Quantifying the Oxidative-Redox Metabolome in Multiple Biological Samples

Author:
Huiying Liu; Feng Xu; Yuqing Gao; Yuanyuan Pang; Cen Xie; Changtao Jiang
Source:
Analytical chemistry 2020 v.92 no.13 pp. 8810-8818
ISSN:
1520-6882
Subject:
analytical chemistry; antibiotics; chemical species; dithiothreitol; hydrogen peroxide; metabolites; metabolome; metabolomics; oxidants; reducing agents
Abstract:
... The cellular redox balance plays a significant role in cell fate decisions and in the regulation of responses to various kinds of stress. In this study, we defined a novel concept of the oxidative-redox metabolome, and established a method for the simultaneous quantification of 23 metabolites involved in the oxidative-redox metabolome, covering NAD⁺ pathway, FAD pathway, GSSG pathway, and ATP path ...
DOI:
10.1021/acs.analchem.0c00242

38. An antibacterial and injectable calcium phosphate scaffold delivering human periodontal ligament stem cells for bone tissue engineering

Author:
Hong Chen; Hui Yang; Michael D. Weir; Abraham Schneider; Ke Ren; Negar Homayounfar; Thomas W. Oates; Ke Zhang; Jin Liu; Tao Hu; Hockin H. K. Xu
Source:
RSC advances 2020 v.10 no.66 pp. 40157-40170
ISSN:
2046-2069
Subject:
Staphylococcus aureus; alginates; alkaline phosphatase; antibiotics; biocompatibility; bone formation; bones; calcium phosphates; cement; humans; ligaments; microbeads; modulus of elasticity; modulus of rupture; orthopedics; osteomyelitis; stem cells; tissue repair
Abstract:
... Osteomyelitis and post-operative infections are major problems in orthopedic, dental and craniofacial surgeries. It is highly desirable for a tissue engineering construct to kill bacteria, while simultaneously delivering stem cells and enhancing cell function and tissue regeneration. The objectives of this study were to: (1) develop a novel injectable calcium phosphate cement (CPC) scaffold contai ...
DOI:
10.1039/d0ra06873j

39. An appraisal of the drinking water quality of groundwater sources in Ogbomoso, Oyo state, Nigeria

Author:
C.O. Bamigboye; J.A. Amao; T.A. Ayodele; A.S. Adebayo; J.D. Ogunleke; T.B. Abass; T.A. Oyedare; T.J. Adetutu; A.O. Adeeyo; A.A. Oyedemi
Source:
Groundwater for sustainable development 2020 v.11 pp. 100453
ISSN:
2352-801X
Subject:
Escherichia coli; Klebsiella; Proteus vulgaris; Pseudomonas aeruginosa; Salmonella; Serratia; Shigella dysenteriae; Staphylococcus aureus; antibiotics; boiling; chlorides; chlorination; coliform bacteria; drinking water; filtration; most probable number technique; physicochemical properties; public health; sustainable development; total dissolved solids; water hardness; water supply; well water; wells; Nigeria
Abstract:
... A total of one hundred and twenty-two water samples were obtained from hand-dug wells and boreholes in Ogbomoso metropolis, Oyo State, Nigeria. Physico-chemical, most probable number technique, direct culture methods, and water quality index were used to assess the drinking water quality in this region. Some of the physicochemical parameters were within the acceptable limits, with the exemption of ...
DOI:
10.1016/j.gsd.2020.100453

40. An approach to alternative strategies to control avian coccidiosis and necrotic enteritis

Author:
P. Adhikari; A. Kiess; R. Adhikari; R. Jha
Source:
Journal of applied poultry research 2020 v.29 no.2 pp. 515-534
ISSN:
1056-6171
Subject:
Clostridium perfringens; Eimeria; antibiotics; broiler chickens; coccidiosis; ecosystems; essential oils; growth promotion; immunity; intestines; ionophores; mortality; necrotic enteritis; nutritional intervention; organic acids and salts; poultry industry; poultry production; poultry products; prebiotics; probiotics; risk; trade; vaccination
Abstract:
... Consumer demands for chickens raised without the use of antibiotics, legislative restrictions, and trade opportunities have encouraged many integrators within the poultry industry to raise poultry without antibiotic growth promoters (AGPs) and ionophores. However, with the removal of AGPs and ionophores, the incidence of enteric diseases such as coccidiosis and necrotic enteritis (NE), caused by E ...
DOI:
10.1016/j.japr.2019.11.005

41. An efficient procedure for preparing high-purity pingyangmycin and boanmycin from Streptomyces verticillus var. pingyangensis fermentation broth via macroporous cation-exchange resin and subsequent reversed-phase preparative chromatography

Author:
Yajun Li; Huimin Lin; Jianbin Zhang; Xu Deng; Ji'an Li
Source:
Journal of chromatography 2020 v.1136 pp. 121883
ISSN:
1570-0232
Subject:
Streptomyces verticillus; adsorption; ammonium chloride; antibiotics; cation exchange; cation exchange resins; culture media; desorption; energy conservation; glycopeptides; liquid chromatography; microparticles; porous media; purification methods
Abstract:
... Pingyangmycin (PYM) and boanmycin (BAM), two individual components of bleomycin (bleomycin A5 and bleomycin A6), are glycopeptide antitumor antibiotics. An efficient procedure for the preparation of PYM and BAM from Streptomyces verticillus var. pingyangensis fermentation broth using macroporous cation-exchange (MCE) resin followed by medium-pressure preparative liquid chromatography (MPLC) based ...
DOI:
10.1016/j.jchromb.2019.121883

42. An immuno-dot blot assay for screening histidine kinase inhibitors

Author:
Emiko Kinoshita-Kikuta; Shino Maruta; Yoko Eguchi; Masayuki Igarashi; Toshihide Okajima; Ryutaro Utsumi; Eiji Kinoshita; Tohru Koike
Source:
Analytical biochemistry 2020 v.600 pp. 113765
ISSN:
0003-2697
Subject:
antibiotics; antibodies; bacteria; enzyme inhibitors; high-throughput screening methods; histidine kinase; pathogens; screening; signal transduction; virulence
Abstract:
... Two-component signal transduction systems (TCSs), consisting of a histidine kinase (HK) and its cognate response regulator, are ubiquitous among bacteria and are associated with the virulence of pathogens. TCSs are potential targets for alternative antibiotics and antivirulence agents. It is, thus, very important to determine HK activity in bacterial TCSs. Here, we describe an immuno-dot blot assa ...
DOI:
10.1016/j.ab.2020.113765

43. An innovative role for tenoxicam as a quorum sensing inhibitor in Pseudomonas aeruginosa

Author:
Momen Askoura; Moustafa Saleh; Hisham Abbas
Source:
Archives of microbiology 2020 v.202 no.3 pp. 555-565
ISSN:
0302-8933
Subject:
Pseudomonas aeruginosa; adjuvants; animal diseases; antibiotic resistance; antibiotics; bacteria; disease control; elastase; genes; hemolysins; mice; models; nonsteroidal anti-inflammatory agents; pathogenesis; pathogens; pyocyanin; pyoverdines; quantitative polymerase chain reaction; quorum sensing; reverse transcriptase polymerase chain reaction; rhamnolipids; secondary infection; survival rate; virulence
Abstract:
... Pseudomonas aeruginosa is an opportunistic pathogen exhibiting higher resistance to commonly used antibiotics. Microbial resistance to antibiotics is a major problem that hinders attempts to control microbial infections. Quorum sensing inhibitors could help us solve such problem by repressing quorum sensing that controls the production of virulence factors in many pathogens including P. aeruginosa ...
DOI:
10.1007/s00203-019-01771-4

44. An overview of the global antimicrobial resistance research and development hub and the current landscape

Author:
Caline Mattar; Suzanne Edwards; Enrico Baraldi; Jennie Hood
Source:
Current opinion in microbiology 2020 v.57 pp. 56-61
ISSN:
1369-5274
Subject:
antibiotic resistance; antibiotics; diagnostic techniques; landscapes; markets; public health; research and development; uncertainty
Abstract:
... Antimicrobial resistance (AMR) is an urgent public health threat, and continues to be on the rise. Basic microbiological research is the foundation for addressing knowledge gaps both for the development of new antibiotics, diagnostics and preventives but also to inform strategies to mitigate the transmission of resistance and drug resistant microorganisms. Translating this research into new produc ...
DOI:
10.1016/j.mib.2020.06.009

45. Anti-bacterial and skin-cancer activity of AuNP, rGO and AuNP-rGO composite using Hemigraphis alternata (Burm.F.) T. Anderson

Author:
Santhiya Sasidharan; Lalitha Pottail
Source:
Biocatalysis and agricultural biotechnology 2020 v.25 pp. 101596
ISSN:
1878-8181
Subject:
Fourier transform infrared spectroscopy; Gram-negative bacteria; Hemigraphis alternata; Raman spectroscopy; X-ray diffraction; acridine orange; ambient temperature; antibiotics; apoptosis; cell lines; cell viability; chemical constituents of plants; color; differential thermal analysis; ethidium; graphene oxide; homogenization; infectious diseases; leaves; medicinal plants; nanocomposites; nanogold; nanoparticles; neoplasm cells; propidium; reducing agents; scanning electron microscopy; screening; skin neoplasms; staining; therapeutics; thermogravimetry; ultraviolet-visible spectroscopy
Abstract:
... Hemigraphis alternata (HA) known as Murikuti, is a traditionally used medicinal plant. Phytochemical screening of leaves shows the presence of bioactive reducing agents. Gold nanoparticles were prepared using aqueous extract of HA leaves at various conventional methods. Concentration variation of gold nanoparticles was studied and optimized under room temperature conditions. Gold nanoparticles (vi ...
DOI:
10.1016/j.bcab.2020.101596

46. Antibacterial Activities of Novel Dithiocarbamate-Containing 4H-Chromen-4-one Derivatives

Author:
Shichun Jiang; Shijun Su; Mei Chen; Feng Peng; Qing Zhou; Tingting Liu; Liwei Liu; Wei Xue
Source:
Journal of agricultural and food chemistry 2020 v.68 no.20 pp. 5641-5647
ISSN:
1520-5118
Subject:
Ralstonia solanacearum; Xanthomonas axonopodis pv. citri; Xanthomonas oryzae pv. oryzae; antibacterial properties; antibiotics; bioassays; cell membranes; copper; deformation; enzyme activity; enzymes; mechanism of action; median effective concentration; plant pathogens; scanning electron microscopy
Abstract:
... To aid the development of novel antibacterial agents that possess a innovative mechanism of action, we built a series of novel dithiocarbamate-containing 4H-chromen-4-one derivatives. We evaluated the activities of the derivatives against three plant pathogens Xanthomonas oryzae pv oryzae (X. oryzae pv o.), Ralstonia solanacearum (R. solanacearum), and Xanthomonas axonopodis pv citri (X. axonopodi ...
DOI:
10.1021/acs.jafc.0c01652

47. Antibacterial activities and mechanisms of action of a defensin from manila clam Ruditapes philippinarum

Author:
Chengjie Lv; Yijing Han; Dinglong Yang; Jianmin Zhao; Chunlin Wang; Changkao Mu
Source:
Fish & shellfish immunology 2020 v.103 pp. 266-276
ISSN:
1050-4648
Subject:
Ruditapes philippinarum; Vibrio anguillarum; antibacterial properties; antibiotics; antimicrobial peptides; biofilm; cell death; chemotaxis; clams; electrochemistry; gills; hemocytes; immunohistochemistry; mechanism of action; membrane permeability; messenger RNA; microorganisms; mortality; phagocytosis; phylogeny; reverse transcriptase polymerase chain reaction; scanning electron microscopy; tissues
Abstract:
... Defensins represent an evolutionary ancient family of antimicrobial peptides, which played an undeniably important role in host defense. In the present study, a defensin isoform was identified and characterized from manila clam Ruditapes philippinarum (designed as Rpdef1α). Multiple alignments and phylogenetic analysis suggested that Rpdef1α belonged to the defensin family. Quantitative RT-PCR and ...
DOI:
10.1016/j.fsi.2020.05.025

48. Antibacterial activity of tea saponin from Camellia oleifera shell by novel extraction method

Author:
Ying Zhao; Ruiqi Su; Wenting Zhang; Guang-Long Yao; Jian Chen
Source:
Industrial crops and products 2020 v.153 pp. 112604
ISSN:
0926-6690
Subject:
Camellia oleifera; Escherichia coli; Staphylococcus aureus; adsorption; agricultural income; antibacterial properties; antibiotics; bacteria; bacterial growth; biopreservatives; cell membrane structures; ethanol; foaming; humans; markets; membrane permeability; minimum inhibitory concentration; pH; porous media; purification methods; saponins; tea; toothpaste; toxicity; wastes
Abstract:
... Natural preservatives are substances that are secreted by organisms or present in the body and have bacteriostatic effects, so they are not toxic to humans. Natural preservatives have become a research focus because of their high safety and strong antibacterial effects. Some commodities in the market are added with tea saponins, such as a brand of foaming cleanser, shampoo, and toothpaste rich in ...
DOI:
10.1016/j.indcrop.2020.112604

49. Antibacterial activity of viable and heat‐killed probiotic strains against oral pathogens

Author:
Y.‐T. Chen; P.‐S. Hsieh; H.‐H. Ho; S.‐H. Hsieh; Y.‐W. Kuo; S.‐F. Yang; C.‐W. Lin
Source:
Letters in applied microbiology 2020 v.70 no.4 pp. 310-317
ISSN:
0266-8254
Subject:
Actinobacillus actinomycetemcomitans; Bifidobacterium animalis subsp. lactis; Fusobacterium nucleatum; Lactobacillus acidophilus; Lactobacillus paracasei; Lactobacillus rhamnosus; Lactobacillus salivarius subsp. salicinius; Porphyromonas gingivalis; Streptococcus mutans; antibacterial properties; antibiotics; bacteria; drug resistance; dysbiosis; functional foods; hydrogen peroxide; immunity; intestinal microorganisms; intestines; mouth diseases; oral health; pathogens; probiotics
Abstract:
... Probiotics can stabilize gut flora, regulate intestinal immunity and protect the host from enteric diseases; however, their roles in oral health have received little attention compared to their roles in gut health. Nowadays, the prevalence of sugar‐sweetened foods and abuse of antibiotics contribute towards dysbiosis of oral microbiota and drug resistance development in oral pathogens, resulting i ...
DOI:
10.1111/lam.13275

50. Antibacterial and Degradable Thioimidazolium Poly(ionic liquid)

Author:
Christene Anne Smith; Vincenzo Alessandro Cataldo; Thomas Dimke; Ina Stephan; Ryan Guterman
Source:
ACS sustainable chemistry & engineering 2020 v.8 no.22 pp. 8419-8424
ISSN:
2168-0485
Subject:
Pseudomonas aeruginosa; antibacterial properties; antibiotic resistance; antibiotics; bacteria; benzalkonium chloride; biocides; environmental impact; ionic liquids; polymers
Abstract:
... New antibacterial agents are urgently required to fight the emergence of antibiotic-resistant bacteria. We recently synthesized the first thioimidazolium ionene, which has antibacterial properties and can degrade in various media. This dual functionality is crucial in order to limit the environmental impact of these biocides. We have found that our polymer is stronger than benzalkonium chloride (B ...
DOI:
10.1021/acssuschemeng.0c02666