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Linh Thi Thao Nguyen,송연우,Thao Anh Tran,김기석,김소미 한국응용생명화학회 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.4
Anoikis (or cell-detachment-induced apoptosis) is aspecial form of apoptosis in which cells loose contact with othercells or the extracellular matrix. In the present study, we havefound that the breast cancer stem cell line MCF-7-SC, isolatedfrom MCF-7 breast cancer cells, shows characteristics of anoikisresistance. Treatment of supercritical CO2 extract from Citrushassaku Hort ex Tanaka, locally known as Phalsak, reduced theexpression of ATP-binding cassette sub-family G member 2mRNA and induced apoptosis in MCF-7-SCs, as evidenced by anincrease of apoptotic body formation, increased cell population inthe sub-G1 phase, increase in the Bax/Bcl-2 ratio, proteolyticactivation of caspase-9 and caspase-3, and the degradation ofpoly(ADP-ribose) polymerase (PARP) protein. The effects ofsupercritical CO2 extract from Phalsak on anoikis-resistant breastcancer stem cells suggest the use of this extract as a potentialtherapeutic agent for breast cancer stem cell treatment.
Nguyen, Linh Thi Thao,Song, Yeon Woo,Tran, Thao Anh,Kim, Ki-Seok,Cho, Somi Kim The Korean Society for Applied Biological Chemistr 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.4
Anoikis (or cell-detachment-induced apoptosis) is a special form of apoptosis in which cells loose contact with other cells or the extracellular matrix. In the present study, we have found that the breast cancer stem cell line MCF-7-SC, isolated from MCF-7 breast cancer cells, shows characteristics of anoikis resistance. Treatment of supercritical $CO_2$ extract from Citrus hassaku Hort ex Tanaka, locally known as Phalsak, reduced the expression of ATP-binding cassette sub-family G member 2 mRNA and induced apoptosis in MCF-7-SCs, as evidenced by an increase of apoptotic body formation, increased cell population in the sub-G1 phase, increase in the Bax/Bcl-2 ratio, proteolytic activation of caspase-9 and caspase-3, and the degradation of poly(ADP-ribose) polymerase (PARP) protein. The effects of supercritical $CO_2$ extract from Phalsak on anoikis-resistant breast cancer stem cells suggest the use of this extract as a potential therapeutic agent for breast cancer stem cell treatment.
Anti-inflammatory Asterosaponins from the Starfish <i>Astropecten monacanthus</i>
Thao, Nguyen Phuong,Cuong, Nguyen Xuan,Luyen, Bui Thi Thuy,Thanh, Nguyen Van,Nhiem, Nguyen Xuan,Koh, Young-Sang,Ly, Bui Minh,Nam, Nguyen Hoai,Kiem, Phan Van,Minh, Chau Van,Kim, Young Ho American Chemical Society and American Society of 2013 Journal of natural products Vol.76 No.9
<P>Four new asterosaponins, astrosteriosides A–D (<B>1</B>–<B>3</B> and <B>5</B>), and two known compounds, psilasteroside (<B>4</B>) and marthasteroside B (<B>6</B>), were isolated from the MeOH extract of the edible Vietnamese starfish <I>Astropecten monacanthus</I>. Their structures were elucidated by chemical and spectroscopic methods including FTICRMS and 1D and 2D NMR experiments. The effects of the extracts and isolated compounds on pro-inflammatory cytokines were evaluated by measuring the production of IL-12 p40, IL-6, and TNF-α in LPS-stimulated bone marrow-derived dendritic cells. Compounds <B>1</B>, <B>5</B>, and <B>6</B> exhibited potent anti-inflammatory activity comparable to that of the positive control. Further studies are required to confirm efficacy <I>in vivo</I> and the mechanism of effects. Such potent anti-inflammatory activities render compounds <B>1</B>, <B>5</B>, and <B>6</B> important materials for further applications including complementary inflammation remedies and/or functional foods and nutraceuticals.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jnprdf/2013/jnprdf.2013.76.issue-9/np400492a/production/images/medium/np-2013-00492a_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/np400492a'>ACS Electronic Supporting Info</A></P>
Thao, Trinh Thi,Kim, Cheolyong,Hwang, Inseong Korean Society of Soil and Groundwater Environment 2017 지하수토양환경 Vol.22 No.1
Persulfate (PS) activated with nanosized zero-valent iron (NZVI) was tested as a reagent to remove phenol from groundwater. Batch degradation experiments indicated that NZVI/PS molar ratios between 1 : 2 and 1 : 5 were appropriate for complete removal of phenol, and that the time required for complete removal varied with different PS and NZVI dosages. Chloride ions up to 100 mM enhanced the phenol oxidation rate, and nitrate of any concentration up to 100 mM did not significantly affect the oxidation rate. NZVI showed greater performance than ferrous iron did as an activator for PS. A by-product was formed along with phenol degradation but subsequently was completely degraded, which showed the potential to attain mineralization with the NZVI/PS system. Tests with radical quenchers indicated that sulfate radicals were a predominant radical. The results of this study suggest that NZVI is a promising activator of PS for treating contaminated groundwater.
Thao-Vy PHAM,Yung-Fu HUANG,Manh-Hoang DO 한국유통과학회 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.1
This paper aims to evaluate the effects of Critical work factors on Work Motivation and Job Satisfaction of young Vietnamese employees. The four most essential work aspects were consisting of the Work environment, Employee empowerment, Salary, and Promotion opportunities. To empirically evaluate the proposed research model, the authors assemble data through conducting questionnaire interviews with young employees working in Vietnamese firms. A sample of 216 respondents was constructed using the PLS-SEM program to highlight the testing of thirteen hypotheses. The testing results indicate that four Critical work factors positively impact the job motivation of young employees, especially two factors as Salary and Promotion opportunities. Surprisingly, the hypothesis regarding the positive direct relationship between Promotion opportunities and Job satisfaction is not supported. Meanwhile, the rest influence factors have a significant connection with the Vietnamese worker’s job satisfaction. The mediation role of Work motivation was also tested by examining the indirect positive relationship between four Critical work factors and Job satisfaction. This paper is the first study that focuses on young employees; hence, these research findings provide Vietnamese human resource managers some suggestions for reference, which can be considered the dynamic factors on the young Vietnamese employees.
Thao Nguyen Vu,Jung-Hyun Byun,Roshan D’Souza,Naina Adren Pinto,Le Phuong Nguyen,DongeunYong,Yunsop Chong 대한진단검사의학회 2020 Annals of Laboratory Medicine Vol.40 No.1
Background: The existing modified carbapenem inactivation methods (mCIMs) recommended by the CLSI for detecting carbapenemase production have not been applicable for Acinetobacter baumannii. We evaluated the influence of matrices used in mCIMs and CIMTris on the stability of the disks for detecting carbapenemase producers and suggested optimal mCIM conditions for detecting carbapenemase-producing A. baumannii. Methods: Seventy-three A. baumannii isolates characterized for antimicrobial susceptibility and carbapenemase encoding genes were tested for carbapenemase production using mCIM and CIMTris. The influence of the matrices (Tryptic soy broth [TSB] and Tris-HCl) used in these methods on the stability of the meropenem (MEM) disk was also evaluated. The mCIM conditions were adjusted to enhance screening sensitivity and specificity for detecting carbapenemase-producing A. baumannii. Results: The matrices had an impact on the stability of the MEM disk after the incubation period (two or four hrs). TSB nutrient broth is an appropriate matrix for mCIM compared with Tris-HCl pH 7.6, which leads to the loss of MEM activity in CIMTris. The sensitivity and the specificity of the optimal mCIM were both 100%. Conclusions: We established optimal mCIM conditions for simple, accurate, and reproducible detection of carbapenemase-producing A. baumannii.
Thao Tram Le Nguyen,Xuan Loc Vu Doan,Vy Thuc Nguyen 아시아심장혈관영상의학회 2020 Cardiovascular Imaging Asia Vol.4 No.4
Anomalous left coronary artery from the pulmonary artery (ALCAPA) syndrome is a rare congenital coronary artery anomaly. Clinical presentation can range from asymptomatic conditions to sudden death with exertion. The majority of cases is diagnosed in childhood and dies within the first year, however medical literature has confirmed several cases in adults. We report a case of a 49-year-old woman hospitalized for vague chest pain. Echocardiography found collateral circulation on the anterior wall, and ALCAPA syndrome was diagnosed on multislice CT.