Antibacterial Activity of Rhus javanica against the Fish Pathogens Vibrio ichthyoenteri and Streptococcus iniae

Kim, Kyoung-Hoon; Kim, Ah Ra; Cho, Eun-Ji; Joo, Seong-Je; Park, Jonghoon; Moon, Ji‐Young; Yum, Jong-Hwa; Kim, Tae Hoon; Kwon, Hyun-Ju; Lee, Hyun-Tai; Kim, Youngman; Lee, Eun Woo

doi:10.5657/kfas.2014.0018

Cited by 7 publications

(7 citation statements)

References 6 publications

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“…As a result, industrial development has been accompanied by some practices potentially damaging to human and animal health that include passing large amounts of veterinary drugs into the environment [ 2 3 ]. Accordingly, various studies have been made to search for antimicrobial agents from natural materials like Rhus javanica extracts and bee venom for application to aquaculture [ 4 5 ]. Such natural substances are safer for the human body than antibiotics and chemicals and are not as concerned with resistant bacteria [ 6 ].…”

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confidence: 99%

Antimicrobial activity of essential oil ofEucalyptus globulusagainst fish pathogenic bacteria

2016

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The antibacterial activities of the essential oil of Eucalyptus globulus (EOEG) was determined against 7 fish pathogenic bacteria (Edwardsiella tarda, Streptococcus iniae, S. parauberis, Lactococcus garviae, Vibrio harveyi, V. ichthyoenteri and Photobacterium damselae) obtained from farmed olive flounder. The inhibitory activity was evaluated by three methods: Disc diffusion method, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). According to the disc diffusion test, as the concentration of EOEG (5-40 µg) rises, the inhibitory zone increases in size. Compared with amoxicillin, tetracycline and chloramphenicol, EOEG showed similar antibacterial activity. The MIC of EOEG ranged from 7.8 to 125 mg/mL and MBC values ranged from 62 to 250 mg/mL. These results show that EOEG has antimicrobial activity against all seven bacteria, but there was no marked difference between each genus. From these results, it is suggested that EOEG can be used as an antimicrobial agent against fish bacterial diseases in the fish industry.

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confidence: 99%

Antimicrobial activity of essential oil ofEucalyptus globulusagainst fish pathogenic bacteria

2016

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“…Owing to the presence of various bioactive constituents and their stability, many researchers have explored biologically active natural products, including those that have anti-inflammatory properties [ 23 , 24 , 25 ]. In particular, phenylpropanoid compounds isolated from natural products are known to exhibit anti-inflammatory activities [ 21 , 26 ].…”

Section: Discussionmentioning

confidence: 99%

Anti-Inflammatory Activity of 4-((1R,2R)-3-Hydroxy-1-(4-hydroxyphenyl)-1-methoxypropan-2-yl)-2-methoxyphenol Isolated from Juglans mandshurica Maxim. in LPS-Stimulated RAW 264.7 Macrophages and Zebrafish Larvae Model

et al. 2021

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Juglans mandshurica Maxim., a traditional folk medicinal plant, is widely distributed in Korea and China. In our previous study, we isolated a new phenylpropanoid compound, 4-((1R,2R)-3-hydroxy-1-(4-hydroxyphenyl)-1-methoxypropan-2-yl)-2-methoxyphenol (HHMP), from J. mandshurica. In the present study, we evaluated the anti-inflammatory activity of HHMP on lipopolysaccharide (LPS)-stimulated RAW 264.7 cells and zebrafish larvae. HHMP significantly inhibited LPS-induced nitric oxide (NO) and prostaglandin E2 production in a dose-dependent manner. Moreover, HHMP treatment considerably suppressed LPS-induced expression of inducible nitric oxide synthase and cyclooxygenase-2. We also demonstrated the mechanisms of HHMP inhibition of inflammatory responses in LPS-stimulated RAW 264.7 cells via Western blot analysis and immunofluorescence staining. Furthermore, HHMP significantly inhibited NO production in LPS-stimulated zebrafish larvae. Consequently, we established that HHMP significantly inhibited the LPS-induced activation of NF-κB and MAPK and the nuclear translocation of p65 in RAW 264.7 cells. Taken together, our findings demonstrate the effect of HHMP on LPS-induced inflammatory responses in vitro and in vivo, suggesting its potential to be used as a natural anti-inflammatory agent.

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“…Rhus javanica has been used to treat dysentery and diarrhea in different Asian countries including Korea, China, and Japan [15]. Several studies showed that, Rhus javanica extract was effective against animal husbandry disease-related bacteria like Listeria monocytogenes and Staphylococcus epidermidis, fish pathogens like Vibrio ichthyoenteri and Streptococcus iniae [16,17]. Leaves of Rhus javanica primarily contains gallic methy lester, syringic acid, protocatechuic acid, and 1, 2, 3, 4, 6-penta-O-galloyl--Dglucose [18].…”

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confidence: 99%

In-vitro Antibacterial activity of Rhus javanica Against Multidrug-Resistant Uropathogens

2020

AJUN

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Background and objective: Antibiotic resistance is emerging as a major public health concern. From the ancient time in history, different plants and herbs have been known to have medicinal value. Rhus javanica has been found to show antibacterial activity against pathogenic bacteria. Thus, present study is designed to investigate the prevalence of urinary tract infection causing bacterial pathogens, its antibiogram and effect of Rhus javanica in standard in-vitro condition against multidrug-resistant. Materials and Methods: Cross-sectional study was conducted in urinary tract infection suspected patients visiting a clinic in Kalimati, Kathmandu, from August to October 2019. A total of 133 midstream urine samples were collected and cultured in MacConkey agar and Blood agar media and isolates were identified by standard biochemical tests. Antibiotic susceptibility testing was performed according to Clinical and Laboratory Standard Institute (CLSI) guideline. Leaves extract of Rhus javanica was obtained by maceration using 50.0% methanol andsusceptibility testing was performed by using cork borer method in Mueller-Hinton agar. Results: Out of total 133 samples, 35.3%showed significant bacterial growth (i.e. 105 cfu/ml) on agar plate. The most predominant organism was Escherichia coli 17.3%, followed by Enterococcus faecalis 6.8%, Klebsiella pneumoniae 3.8%, Pseudomonas aeruginosa 3.0%, Proteus vulgaris 2.3%, and Staphylococcus aureus 2.3%. Out of 47 isolates, 53.2% were Multi Drug Resistant (MDR). Various concentrations of the crude extract used (25, 50, 75 and 100 mg/ml) showed susceptibility to all the bacterial pathogens isolated, with the diameter of zone of inhibition ranging from 12 to 28 mm. Conclusion: Methanolic extract of Rhus javanica showed antibacterial activity against multidrug-resistant isolates of bacterial uropathogens in standard in-vitro condition.

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Antibacterial Activity of Rhus javanica against the Fish Pathogens Vibrio ichthyoenteri and Streptococcus iniae

Cited by 7 publications

References 6 publications

Antimicrobial activity of essential oil ofEucalyptus globulusagainst fish pathogenic bacteria

Antimicrobial activity of essential oil ofEucalyptus globulusagainst fish pathogenic bacteria

Anti-Inflammatory Activity of 4-((1R,2R)-3-Hydroxy-1-(4-hydroxyphenyl)-1-methoxypropan-2-yl)-2-methoxyphenol Isolated from Juglans mandshurica Maxim. in LPS-Stimulated RAW 264.7 Macrophages and Zebrafish Larvae Model

In-vitro Antibacterial activity of Rhus javanica Against Multidrug-Resistant Uropathogens

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