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  1. Article ; Online: Evaluation of MIC distribution and establishment of epidemiological cut-off values for Streptococcus parauberis isolated from aquatic animals.

    Woo, Soo Ji / Kim, Myoung Sug / Do, Mi Young / Kim, Na Young / Joo, Min Soo

    Journal of applied microbiology

    2023  Volume 134, Issue 7

    Abstract: Aims: Streptococcus parauberis is responsible for the development of streptococcosis in marine fish. The aim of the current study was to determine the antimicrobial susceptibility of aquatic Strep. parauberis strains, thus establishing laboratory- ... ...

    Abstract Aims: Streptococcus parauberis is responsible for the development of streptococcosis in marine fish. The aim of the current study was to determine the antimicrobial susceptibility of aquatic Strep. parauberis strains, thus establishing laboratory-specific epidemiological cut-off (COWT) values to distinguish wild-type (WT) and nonwild-type (NWT) strains.
    Methods and results: Using 220 Strep. parauberis isolates obtained from diseased Paralichthys olivaceus, Platichthys stellatus, and Sebastes schlegelii over 6 years from seven different locations in Korea, we established COWT values for eight common antimicrobial agents using the standard broth microdilution method. The COWT values calculated using MIC distribution with the NRI and ECOFFinder methods were the same or within one dilution step for the eight antimicrobials tested. Nine NWT isolates with decreased susceptibility to at least two antimicrobials and one of these isolates exhibited decreased susceptibility to six antimicrobial agents were identified using COWT values based on NRI.
    Conclusions: Interpretive criteria for Strep. parauberis have not yet been established, and the findings of this study provide putative COWT values for eight antimicrobial agents frequently used in aquaculture in Korea.
    MeSH term(s) Animals ; Fish Diseases ; Streptococcus/genetics ; Anti-Bacterial Agents ; Streptococcal Infections/veterinary ; Flounder ; Microbial Sensitivity Tests
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2023-06-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1093/jambio/lxad126
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Antiparasitic potential of ethanolic extracts of Carpesii Fructus against Miamiensis avidus in hirame natural embryo cell line and their effects on immune response- and biotransformation-related genes

    Woo, Soo Ji / Jeong, Min Gyeong / Jeon, Eun Ji / Do, Mi Young / Kim, Na Young

    Comparative biochemistry and physiology. 2022 Jan., v. 251

    2022  

    Abstract: Scuticociliatosis, caused by Miamiensis avidus, is a severe parasitic disease affecting marine organisms, particularly Paralichthys olivaceus. The aim of this study was to assess the antiparasitic potential of ethanolic extracts of Carpesii Fructus (EECF) ...

    Abstract Scuticociliatosis, caused by Miamiensis avidus, is a severe parasitic disease affecting marine organisms, particularly Paralichthys olivaceus. The aim of this study was to assess the antiparasitic potential of ethanolic extracts of Carpesii Fructus (EECF), the dried fruit of Carpesium abrotanoides L., which is used in traditional Chinese medicine, in vitro. We found that 50%, 70%, and 100% EECF induced morphological changes in M. avidus, including reduced motility, cell shrinkage, and lysis. Nearly 100% cell lysis was observed in M. avidus after 2 h of treating with 100% EECF. After 24 h, the survival rates of M. avidus treated with 100%, 70%, and 50% EECF were 10%, 20%, and 30%, respectively. Additionally, the mRNA levels of immune response-related (IL-1β, IL-8, TNF-α, and CD8-α) and biotransformation-related (CYP1A, CYP1B, CYP3A4, and UGT2B19) genes increased with 70% and 100% EECF treatment and decreased with 50% EECF treatment following pretreatment with concanavalin A. The viability of hirame natural embryo (HINAE) cells was reduced by 50%, 70%, and 100% EECF (100 mg/L) and was between 67 and 80%. The IC₅₀ values of 50%, 70%, 90%, and 100% EECF in HINAE cells were 102.3, 42.93, 39.15, and 38.39 mg/L, respectively. These results indicated that 50% EECF was less toxic to HINAE cells than 70% or 100% EECF, while still exhibiting antiparasitic activity against M. avidus. Therefore, we demonstrated the role of EECF as a natural antiparasitic agent against M. avidus. Our findings suggest that Carpesii Fructus has potential use as an antiparasitic agent in the aquaculture industry.
    Keywords Carpesium abrotanoides ; Miamiensis avidus ; Oriental traditional medicine ; Paralichthys olivaceus ; antiparasitic agents ; antiparasitic properties ; aquaculture industry ; cell lines ; concanavalin A ; dried fruit ; interleukin-8 ; parasitoses ; physiology ; shrinkage ; toxicity ; viability
    Language English
    Dates of publication 2022-01
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 189285-x
    ISSN 0306-4492 ; 0742-8413 ; 1532-0456
    ISSN 0306-4492 ; 0742-8413 ; 1532-0456
    DOI 10.1016/j.cbpc.2021.109214
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Antiparasitic potential of ethanolic extracts of Carpesii Fructus against Miamiensis avidus in hirame natural embryo cell line and their effects on immune response- and biotransformation-related genes.

    Woo, Soo Ji / Jeong, Min Gyeong / Jeon, Eun Ji / Do, Mi Young / Kim, Na Young

    Comparative biochemistry and physiology. Toxicology & pharmacology : CBP

    2021  Volume 251, Page(s) 109214

    Abstract: Scuticociliatosis, caused by Miamiensis avidus, is a severe parasitic disease affecting marine organisms, particularly Paralichthys olivaceus. The aim of this study was to assess the antiparasitic potential of ethanolic extracts of Carpesii Fructus (EECF) ...

    Abstract Scuticociliatosis, caused by Miamiensis avidus, is a severe parasitic disease affecting marine organisms, particularly Paralichthys olivaceus. The aim of this study was to assess the antiparasitic potential of ethanolic extracts of Carpesii Fructus (EECF), the dried fruit of Carpesium abrotanoides L., which is used in traditional Chinese medicine, in vitro. We found that 50%, 70%, and 100% EECF induced morphological changes in M. avidus, including reduced motility, cell shrinkage, and lysis. Nearly 100% cell lysis was observed in M. avidus after 2 h of treating with 100% EECF. After 24 h, the survival rates of M. avidus treated with 100%, 70%, and 50% EECF were 10%, 20%, and 30%, respectively. Additionally, the mRNA levels of immune response-related (IL-1β, IL-8, TNF-α, and CD8-α) and biotransformation-related (CYP1A, CYP1B, CYP3A4, and UGT2B19) genes increased with 70% and 100% EECF treatment and decreased with 50% EECF treatment following pretreatment with concanavalin A. The viability of hirame natural embryo (HINAE) cells was reduced by 50%, 70%, and 100% EECF (100 mg/L) and was between 67 and 80%. The IC
    MeSH term(s) Animals ; Antiparasitic Agents/pharmacology ; Asteraceae/metabolism ; Cell Line ; Fish Diseases/drug therapy ; Fish Diseases/parasitology ; Flounder/parasitology ; Immunity/drug effects ; Parasitic Diseases, Animal/drug therapy ; Plant Extracts/pharmacology
    Chemical Substances Antiparasitic Agents ; Plant Extracts
    Language English
    Publishing date 2021-10-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 189285-x
    ISSN 1532-0456 ; 0306-4492 ; 0742-8413
    ISSN 1532-0456 ; 0306-4492 ; 0742-8413
    DOI 10.1016/j.cbpc.2021.109214
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Prevalence, antibiotic susceptibility and serotyping of Streptococcus parauberis isolates from diseased marine fish

    Woo, Soo Ji / Do, Mi Young / Jeong, Min Gyeong / Kim, Na Young / Kim, Myoung Sug

    Aquaculture research. 2021 Dec., v. 52, no. 12

    2021  

    Abstract: Streptococcus parauberis is the main causative bacterial pathogen for streptococcosis in marine fish, causing a significant economic loss to the mariculture industry. In this study, we aimed to investigate the serotypes and antimicrobial susceptibilities ...

    Abstract Streptococcus parauberis is the main causative bacterial pathogen for streptococcosis in marine fish, causing a significant economic loss to the mariculture industry. In this study, we aimed to investigate the serotypes and antimicrobial susceptibilities of 83 S. parauberis isolates from diseased farmed fish (Paralichthys olivaceus, Platichthys stellatus and Sebastes schlegelii) in Korea. This study categorized the S. parauberis isolates based on PCR serotyping into serotype I (subtypes Ia and Ib/Ic) and serotype II. Serotype Ia was identified to be significantly more prevalent than serotypes Ib/Ic and II. An antimicrobial susceptibility analysis showed that all of the isolates were susceptible to amoxicillin/clavulanic acid. Overall, the isolates studied showed resistance to penicillin and ampicillin (1.2%), tetracycline (68.7%), oxytetracycline (72.3%), doxycycline (53.0%) and erythromycin (37.3%). Interestingly, we found that serotypes Ia and II showed higher degrees of tetracycline resistance than serotype Ib/Ic. The macrolide resistance gene erm(B) was present in 75.8% of the Ia isolates, whereas the mef(A) gene was not detected in any of the isolates. The tetracycline resistance genes tet(S) and tet(M) were detected in 95.2% and 60% of Ia and II isolates respectively. Moreover, β‐lactam antibiotic‐resistant Ia isolates contained a set of 11 mutations in PBP1A and PBP2X. Our study provides a valuable reference for surveillance of antimicrobial resistance and underscores the strict management of antibiotic use to prevent the emergence of resistant of S. parauberis serotypes.
    Keywords Paralichthys olivaceus ; Platichthys stellatus ; Sebastes schlegelii ; Streptococcus parauberis ; amoxicillin ; antibiotic resistance ; clavulanic acid ; doxycycline ; erythromycin ; farmed fish ; financial economics ; industry ; mariculture ; marine fish ; monitoring ; oxytetracycline ; pathogens ; research ; resistance genes ; serotypes ; tetracycline ; Korean Peninsula
    Language English
    Dates of publication 2021-12
    Size p. 6525-6536.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1227359-4
    ISSN 1355-557X
    ISSN 1355-557X
    DOI 10.1111/are.15523
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Establishment of Epidemiological Cut-Off Values and the Distribution of Resistance Genes in

    Woo, Soo-Ji / Kim, Myoung-Sug / Jeong, Min-Gyeong / Do, Mi-Young / Hwang, Sung-Don / Kim, Woo-Jin

    Antibiotics (Basel, Switzerland)

    2022  Volume 11, Issue 3

    Abstract: The emergence of antimicrobial-resistant bacteria is an enormous challenge to public health. ...

    Abstract The emergence of antimicrobial-resistant bacteria is an enormous challenge to public health.
    Language English
    Publishing date 2022-03-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2681345-2
    ISSN 2079-6382
    ISSN 2079-6382
    DOI 10.3390/antibiotics11030343
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  6. Article ; Online: Invasive Exploitation and the Multiplicative Hypothesis: Polyvictimization and Adolescent Depression Symptoms in Nepal.

    Emery, Clifton R / Abdullah, Alhassan / Thapa, Srijana / Do, Mi-Hyang / Jordan, Lucy / Huang, Yu-Te / Men, Vera Yu / Wekerle, Christine

    Journal of interpersonal violence

    2022  Volume 37, Issue 23-24, Page(s) NP22428–NP22452

    Abstract: Adverse effects of childhood maltreatment experience and adolescent depression symptoms are theorized to be more profound for adolescents who have suffered multiple maltreatments (polyvictimization). New theoretical insights into the study of ... ...

    Abstract Adverse effects of childhood maltreatment experience and adolescent depression symptoms are theorized to be more profound for adolescents who have suffered multiple maltreatments (polyvictimization). New theoretical insights into the study of polyvictimization suggest that it must be studied using a multiplicative logic, particularly when maltreatment is characterized by invasive exploitation. This study, for the first time, examined the concept of invasive exploitation in the context of polyvictimization and its association with adolescent depression symptoms. The study used a random, three stage probability proportional to size (PPS) cluster sample of 565 mother-adolescent dyads in Kathmandu, Nepal, and also examined the protective effects of maternal empathy. We hypothesized that (a) singly, the empirical categories of maltreatment (neglect, physical abuse, and child sexual abuse) would associate positively with adolescent depressive symptoms and (b) main effects held constant, the interaction effects of a child sexual abuse X neglect and a child sexual abuse X physical abuse would be positive. Regression with clustering corrections found that neglect (
    MeSH term(s) Child ; Female ; Adolescent ; Humans ; Depression/epidemiology ; Nepal ; Child Abuse ; Child Abuse, Sexual ; Physical Abuse
    Language English
    Publishing date 2022-02-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2028900-5
    ISSN 1552-6518 ; 0886-2605
    ISSN (online) 1552-6518
    ISSN 0886-2605
    DOI 10.1177/08862605211072164
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  7. Article ; Online: Do family order and neighbor intervention against intimate partner violence protect children from abuse? Findings from Kathmandu.

    Emery, Clifton R / Thapa, Sirjana / Do, Mi Hyang / Chan, Ko Ling

    Child abuse & neglect

    2015  Volume 41, Page(s) 170–181

    Abstract: Drawing on previous research on intimate partner violence, child maltreatment, and informal social control, we hypothesized relationships between child abuse severity and (1) protective informal social control of intimate partner violence (ISC_IPV) by ... ...

    Abstract Drawing on previous research on intimate partner violence, child maltreatment, and informal social control, we hypothesized relationships between child abuse severity and (1) protective informal social control of intimate partner violence (ISC_IPV) by neighbors, (2) intimate terrorism, (3) family order, and (4) the power of mothers in intimate relationships. In what we believe may be a first study of physical child abuse by parents in Nepal, we used a three stage cluster approach to draw a random sample of 300 families in Kathmandu. Random effects regression models were used to test the study hypotheses. The analyses found support for hypotheses one and two, but with an important caveat. Although observed (actual) protective ISC_IPV had the hypothesized negative association with child abuse severity, in one of our models perceived protective ISC_IPV was positively associated with child abuse severity. The models clarify that the overall direction of protective ISC_IPV appears to be negative (protective), but the positive finding is important to consider for both research and practice. A significant relationship between family order and child abuse severity was found, but the direction was negative rather than positive as in hypothesis three. Implications for neighborhood research and typological research on IPV and child maltreatment are discussed.
    MeSH term(s) Adult ; Child ; Child Abuse/prevention & control ; Family ; Female ; Humans ; Interpersonal Relations ; Intimate Partner Violence/statistics & numerical data ; Male ; Mothers/psychology ; Nepal/epidemiology ; Power (Psychology) ; Regression Analysis ; Residence Characteristics ; Social Control, Informal
    Language English
    Publishing date 2015-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 799143-5
    ISSN 1873-7757 ; 0145-2134
    ISSN (online) 1873-7757
    ISSN 0145-2134
    DOI 10.1016/j.chiabu.2014.10.001
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  8. Article ; Online: Mapping outdoor habitat and abnormally small newborns to develop an ambient health hazard index

    Charlene C. Nielsen / Carl G. Amrhein / Alvaro R. Osornio-Vargas / the DoMiNO Team

    International Journal of Health Geographics, Vol 16, Iss 1, Pp 1-

    2017  Volume 21

    Abstract: Abstract Background The geography of where pregnant mothers live is important for understanding outdoor environmental habitat that may result in adverse birth outcomes. We investigated whether more babies were born small for gestational age or low birth ... ...

    Abstract Abstract Background The geography of where pregnant mothers live is important for understanding outdoor environmental habitat that may result in adverse birth outcomes. We investigated whether more babies were born small for gestational age or low birth weight at term to mothers living in environments with a higher accumulation of outdoor hazards. Methods Live singleton births from the Alberta Perinatal Health Program, 2006–2012, were classified according to birth outcome, and used in a double kernel density estimation to determine ratios of each outcome per total births. Individual and overlay indices of spatial models of 136 air emissions and 18 land variables were correlated with the small for gestational age and low birth weight at term, for the entire province and sub-provincially. Results There were 24 air substances and land sources correlated with both small for gestational age and low birth weight at term density ratios. On the provincial scale, there were 13 air substances and 2 land factors; sub-provincial analysis found 8 additional air substances and 1 land source. Conclusion This study used a combination of multiple outdoor variables over a large geographic area in an objective model, which may be repeated over time or in other study areas. The air substance-weighted index best identified where mothers having abnormally small newborns lived within areas of potential outdoor hazards. However, individual air substances and the weighted index provide complementary information.
    Keywords Small for gestational age ; Low birth weight at term ; Pollution ; GIS ; Index ; Computer applications to medicine. Medical informatics ; R858-859.7
    Subject code 333
    Language English
    Publishing date 2017-11-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Proof-of-Principle Experiment on the Dynamic Shell Formation for Inertial Confinement Fusion.

    Igumenshchev, I V / Theobald, W / Stoeckl, C / Shah, R C / Bishel, D T / Goncharov, V N / Bonino, M J / Campbell, E M / Ceurvorst, L / Chin, D A / Collins, T J B / Fess, S / Harding, D R / Sampat, S / Shaffer, N R / Shvydky, A / Smith, E A / Trickey, W T / Waxer, L J /
    Colaïtis, A / Liotard, R / Adrian, P J / Atzeni, S / Barbato, F / Savino, L / Alfonso, N / Haid, A / Do, Mi

    Physical review letters

    2023  Volume 131, Issue 1, Page(s) 15102

    Abstract: In the dynamic-shell (DS) concept [V. N. Goncharov et al., Novel Hot-Spot Ignition Designs for Inertial Confinement Fusion with Liquid-Deuterium-Tritium Spheres, Phys. Rev. Lett. 125, 065001 (2020).PRLTAO0031-900710.1103/PhysRevLett.125.065001] for laser- ...

    Abstract In the dynamic-shell (DS) concept [V. N. Goncharov et al., Novel Hot-Spot Ignition Designs for Inertial Confinement Fusion with Liquid-Deuterium-Tritium Spheres, Phys. Rev. Lett. 125, 065001 (2020).PRLTAO0031-900710.1103/PhysRevLett.125.065001] for laser-driven inertial confinement fusion the deuterium-tritium fuel is initially in the form of a homogeneous liquid inside a wetted-foam spherical shell. This fuel is ignited using a conventional implosion, which is preceded by a initial compression of the fuel followed by its expansion and dynamic formation of a high-density fuel shell with a low-density interior. This Letter reports on a scaled-down, proof-of-principle experiment on the OMEGA laser demonstrating, for the first time, the feasibility of DS formation. A shell is formed by convergent shocks launched by laser pulses at the edge of a plasma sphere, with the plasma itself formed as a result of laser-driven compression and relaxation of a surrogate plastic-foam ball target. Three x-ray diagnostics, namely, 1D spatially resolved self-emission streaked imaging, 2D self-emission framed imaging, and backlighting radiography, have shown good agreement with the predicted evolution of the DS and its stability to low Legendre mode perturbations introduced by laser irradiation and target asymmetries.
    Language English
    Publishing date 2023-02-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.131.015102
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Polyethyleneimine-mediated synthesis of superparamagnetic iron oxide nanoparticles with enhanced sensitivity in T2 magnetic resonance imaging.

    Do, Mi Ae / Yoon, Gyu Jin / Yeum, Jeong Hyun / Han, Mun / Chang, Yongmin / Choi, Jin Hyun

    Colloids and surfaces. B, Biointerfaces

    2014  Volume 122, Page(s) 752–759

    Abstract: The development of iron oxide nanoparticles (IONPs) with enhanced r2 relaxivity is important for achieving greater sensitivity in in vivo magnetic resonance (MR) imaging. In this study, it was considered that polyethyleneimine (PEI) could play a role in ... ...

    Abstract The development of iron oxide nanoparticles (IONPs) with enhanced r2 relaxivity is important for achieving greater sensitivity in in vivo magnetic resonance (MR) imaging. In this study, it was considered that polyethyleneimine (PEI) could play a role in varying the particle and cluster sizes in IONP synthesis, leading to different r2 relaxivities. To demonstrate this, superparamagnetic IONPs were synthesised in the presence of NH4OH and PEI using a co-precipitation method. PEI acted as an active stabiliser during IONP synthesis, and therefore the particle size, hydrodynamic cluster size, coating layer thickness, saturation magnetisation, and r2 relaxivity were all strongly influenced by the PEI concentration. Monodispersed IONPs with a mean hydrodynamic cluster size of 14.4nm were synthesised at a PEI concentration of 0.05wt% and in this case, the r2 relaxivity was increased up to 227.6mM(-1)s(-1). This confirmed the viability of PEI-mediated synthesis as a means of controlling the particle/cluster size and enhancing the r2 relaxivity. The PEI-IONPs exhibited no significant cytotoxicity up to 132ppm. Rapid and strong uptake of PEI-IONPs was detected in rat liver by in vivo MR imaging. The superparamagnetic PEI-IONPs prepared in this study are considered to be sufficiently sensitive for use as MR imaging contrast agents, which can be used as parent particles for further functional modification.
    MeSH term(s) Animals ; Ferric Compounds/chemical synthesis ; Ferric Compounds/chemistry ; Magnetic Resonance Imaging/methods ; Male ; Nanoparticles/chemistry ; Particle Size ; Polyethyleneimine/chemistry ; Rats ; Rats, Sprague-Dawley
    Chemical Substances Ferric Compounds ; ferric oxide (1K09F3G675) ; Polyethyleneimine (9002-98-6)
    Language English
    Publishing date 2014-10-01
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1500523-9
    ISSN 1873-4367 ; 0927-7765
    ISSN (online) 1873-4367
    ISSN 0927-7765
    DOI 10.1016/j.colsurfb.2014.08.015
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