Metabolic Syndrome and Life Style in China

Wu Pei-Ying,Song Xiao-Min,Jin Qi-Lin,Wang Xin-Qiao,Wang Ai-Rong The Korean Society of Community Nutrition 2004 Journal of community nutrition Vol.6 No.3

The purpose of this study was to explore the relationship between life style and metabolic syndrome. The cross-sectional survey was conducted in Pingliang community in Shanghai in Jan 2003. The data was collected by questionnaire, and the results were analyzed by SPSS. It was found that the prevalence of Metabolic Syndrome (MS) was $13.4\%$ in the community, and the body mass index (BMI), waist-to-hip ratio (WHR), systolic blood pressure (SBP), diastolic blood pressure (DBP), serum triglyceride (TG), total cholesterol(TC), low density lipoprotein-cholesterol (LDL-C), and fast plasma glucose (FPG) in MS group were higher than that in non-MS group. Logistic regression analysis indicated that BMI and WHR were positively correlated to the prevalence of MS, and physical activity was negatively correlated to the prevalence of MS. People with higher education levels (${\geq}10y$) had lower BMI, SBP, DBP, LDL-C and FPG. The prevalence of MS in the higher education level group was significantly lower than that of the lower education level group. These results suggested that BMI, WHR and physical activity were important factors of MS, and education background played an important role in the occurrence of MS. Therefore, it is very important to build a healthy life style for preventing and controlling the incidence and developing of MS.

β-arrestin Promotes c-Jun N-terminal Kinase Mediated Apoptosis via a GABA_BR·β-arrestin·JNK Signaling Module

Wu, Jin-Xia,Shan, Feng-Xiao,Zheng, Jun-Nian,Pei, Dong-Sheng Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.2

Evidence is growing that the $GABA_B$ receptor, which belongs to the G protein-coupled receptor (GPCR) superfamily, is involved in tumorigenesis. Recent studies have shown that ${\beta}$-arrestin can serve as a scaffold to recruit signaling protein c-Jun N-terminal knase (JNK) to GPCR. Here we investigated whether ${\beta}$-arrestin recruits JNK to the $GABA_B$ receptor and facilitates its activation to affect the growth of cancer cells. Our results showed that ${\beta}$-arrestin expression is decreased in breast cancer cells in comparison with controls. ${\beta}$-arrestin could enhance interactions of the $GABA_BR{\cdot}{\beta}-arrestin{\cdot}JNK$ signaling module in MCF-7 and T-47D cells. Further studies revealed that increased expression of ${\beta}$-arrestin enhances the phosphorylation of JNK and induces cancer cells apoptosis. Collectively, these results indicate that ${\beta}$-arrestin promotes JNK mediated apoptosis via a $GABA_BR{\cdot}{\beta}-arrestin{\cdot}JNK$ signaling module.

Effects of Tiam 1 on Invasive Capacity of Gastric Cancer Cells in vitro and Underlying Mechanisms

Zhu, Jin-Ming,Yu, Pei-Wu Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.1

Objective: To investigate changes in the invasive capacity of gastric cancer cells in vitro after expression inhibition of T lymphoma invasion and metastasis inducing factor 1 (Tiam 1) and underlying mechanisms. Methods: Using adhesion selection, two subpopulations with high ($M_H$) or low ($M_L$) invasive capacity were separated from the human gastric cancer cell line MKN-45 ($M_0$). Tiam 1 antisense oligodeoxynucleotide (ASODN) was transfected into $M_H$ cells with liposomes, and expression of Tiam 1 mRNA and protein was determined by RT-PCR and quantitative cellular-ELISA. Changes in the cytoskeleton, invasive capacity in vitro and expression of ras-related $C_3$ botulinum toxin substrate 1 (Rac 1), integrin ${\beta}1$ and matrix metalloproteinase 2 (MMP 2) between Tiam 1 ASODN transfected $M_H$ cells and non-transfected cells were observed by HE staining, cytoskeletal protein staining, scanning electron microscopy, Boyden chamber tests and cyto-immunohistochemistry. Results: A positive correlation existed between the expression level of Tiam l mRNA or protein and the invasion capacity of gastric cancer cells. After ASODN treatment ($0.43{\mu}M$ for 48 h), Tiam 1 mRNA transcription and protein expression in $M_H$ cells were decreased by 80% and 24% respectively (P < 0.05), compared with untreated controls, while invasive capacity in vitro was suppressed by 60% (P < 0.05). Morphologic and ultrastructural observation also showed that ASODN-treated $M_H$ cells exhibited smooth surfaces with obviously reduced filopodia and microspikes, which resembled $M_0$ and $M_L$ cells. Additionally, cytoskeletal distribution dramatically altered from disorder to regularity with reduced long filament-like structure, projections, pseudopodia on cell surface, and with decreased acitn-bodies in cytoplasm. After Tiam 1 ASODN treatment, the expression of Rac 1 and Integrin ${\beta}1$ in $M_H$ cells was not affected (P > 0.05), but that of MMP 2 in $M_H$ cells was significantly inhibited compared with untreated cells (P < 0.05). Conclusion: Over-expression of Tiam-1 contributes to the invasive phenotype of gastric cancer cells. Inhibition of Tiam 1 expression could impair the invasive capacity of gastric cancer cells through modulating reconstruction of the cytoskeleton and regulating expression of MMP 2.

A Sphingosine Kinase-1 Inhibitor, SKI-II, Induces Growth Inhibition and Apoptosis in Human Gastric Cancer Cells

Li, Pei-Hua,Wu, Jin-Xia,Zheng, Jun-Nian,Pei, Dong-Sheng Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.23

SKI-II has been reported as an inhibitor of sphingosine kinase 1 and has been extensively used to prove the involvement of sphingosine kinase and sphingosine-1-phosphate (Sphk1) in cellular processes. In the current study, we investigated the effects of SKI-II and its potential mechanisms in human gastric cancer SGC7901 cells. After treatment with SKI-II, cell growth, cell cycle distribution, apoptosis, expression of Sphk1, NF-${\kappa}B$, Bcl-2, Bax and p27 were assessed by MTT assay, flow cytometry, electron microscopy, immunocytochemistry and Western-blot assay, respectively. Our results showed that SKI-II markedly inhibited SGC7901 cell survival in a dose-dependent manner, reduced cell proliferation with accumulation of cells in the G0/G1 phase and induced apoptosis in the tumor cells. Furthermore, Western blotting and immunocytochemistry showed that the expression of p27 and Bax was increased significantly, but the expression of NF-${\kappa}B$, Bcl-2 and Sphk1 decreased by different degrees. These results indicate that SKI-II induced cell growth arrest and apoptosis. The increased apoptotic sensitivity of SGC7901 was correlated with NF-${\kappa}B$ or Bcl-2/Bax activation.

Microwave dielectric properties of Li3Mg2SbO5F2 oxyfluorides ceramics produced by reaction-sintering method

Pengshen Wu,Cuijin Pei,Miao Chen,Xu Gao,Weihong Liu,Guoguang Yao,Jin Liu 한양대학교 청정에너지연구소 2023 Journal of Ceramic Processing Research Vol.24 No.6

By a reaction-sintering approach Li3Mg2SbO5F2 oxyfluorides ceramics were prepared. The sinterability, microstructure,phase transition along with microwave dielectric performances of present ceramics were researched. A gradual phase transitionfrom cubic to orthorhombic in Li3Mg2SbO5F2 ceramics sintered above 825 °C was identified by XRD refinement analysis. The microwave dielectric performances of present ceramics were closely correlated with its phase transition process andmicrostructure. Typically, optimal microwave dielectric performances (εr ~ 8.1, τf ~ –54.0 ppm/°C, Q × f ~ 68,500 GHz (under9.2 GHz)) were achieved for 825 °C-sintered Li3Mg2SbO5F2 ceramics. Moreover, a cylindrical dielectric resonator antennafabricated from Li3Mg2SbO5F2 ceramics exhibited a maximum return loss (S11) of –30.3 dB, a maximum gain of 5.3 dB andVSWR of 1.1 at the center frequency of 11.6 GHz, and impedance bandwidth of 300 MHz (at –10 dB), respectively.

Novel Phage Display-Derived H5N1-Specific scFvs with Potential Use in Rapid Avian Flu Diagnosis

( Jie Wu ),( Xian Qiao Zeng ),( Hong Bin Zhang ),( Han Zhong Ni ),( Lei Pei ),( Li Rong Zou ),( Li Jun Liang ),( Xin Zhang ),( Jin Yan Lin ),( Chang Wen Ke ) 한국미생물 · 생명공학회 2014 Journal of microbiology and biotechnology Vol.24 No.5

The highly pathogenic avian influenza A (HPAI) viruses of the H5N1 subtype infect poultry and have also been spreading to humans. Although new antiviral drugs and vaccinations can be effective, rapid detection would be more efficient to control the outbreak of infections. In this study, a phage-display library was applied to select antibody fragments for HPAI strain A/Hubei/1/2010. As a result, three clones were selected and sequenced. A hemagglutinin inhibition assay of the three scFvs revealed that none exhibited hemagglutination inhibition activity towards the H5N1 virus, yet they showed a higher binding affinity for several HPAI H5N1 strains compared with other influenza viruses. An ELISA confirmed that the HA protein was the target of the scFvs, and the results of a protein structure simulation showed that all the selected scFvs bound to the HA2 subunit of the HA protein. In conclusion, the three selected scFVs could be useful for developing a specific detection tool for the surveillance of HPAI epidemic strains.

Changes in Useful Components and Antioxidant Activity of Angelica gigas Nakai by Far Infrared Irradiation

Jing Pei Piao(박경배),Won Woo Kim(김원우),Gyu Seob Kim(김규섭),Cheng Wu Jin(김성무),Dong Ha Cho(조동하) 한국약용작물학회 2016 한국약용작물학회 학술대회논문집 Vol.2016 No.1

온라인 협업 도구 활용 한국어 수업 사례 : 상해 삼달대학교를 중심으로

배영련(Pei, Ying Lian),오선자(Wu, Shan Zi),최선진(Choi, Seon Jin),한나(Han, Na),오영화(Wu, Ying Hua) 글로벌교육연구학회 2021 글로벌교육연구 Vol.13 No.4

본 연구는 온라인 수업에서의 상호작용에 도움을 주며, 중국과 한국에서 동시에 사용할수 있는 다양한 온라인 협업 도구를 소개하고, 이 도구 네 가지(mentimeter, zoom, padlet, Quizizz)를 사용하여 중국인 대상 한국어 수업을 운영한 사례를 제시하였다. 그리고본 수업 운영에 대한 학습자 만족도를 살펴보기 위하여 2021학년도 3월 학기에 본 수업을수강한 상해 삼달대학교 한국어 학습자 75명을 대상으로 만족도 조사를 시행하였으며, 그결과 전체적인 수업 만족도는 평균 4.09였다. 또한, 온라인 수업에서의 상호작용 향상을위한 방법으로 활용한 온라인 협업 도구에 대한 전체적인 만족도는 4.24였으며, 각 도구의만족도는 mentimeter가 4.63, zoom이 4.15, padlet이 4.09, Quizizz 3.81 순이었다. 이 중에서 협업 도구에 대한 전체적인 만족도와 padlet 만족도가 수업 전체 만족도에 영향을미치는 것으로 분석되었다. 본 연구 결과에 따른 제언은 다음과 같다. 첫째, 온라인 협업도구 활용에 대한 학습자 만족도가 높기 때문에 한국어 수업에 활용할 수 있는 다양한 협업도구 연구를 바탕으로 수업 적용이 필요하며, 각 국 학습자용 교재 편찬이 필요하다고 할수 있다. 본 연구는 다양한 온라인 수업에서의 상호작용에 필요한 다양한 협업 도구를 소개하고 비대면 수업에서의 실제 활용방안을 제시했으며, 이에 대한 학습자들의 의견을 수렴했다는 점에서 의의가 있다. This study was to present a case of an Online Korean class using four online tools such as Mentimeter, Zoom, Padlet, Quizizz for helping the interaction of Korean and Chinese students. To investigate learner satisfaction, 75 Chinese students from Shanda University participated in a survey after the class. The results were as follows: First, the overall class satisfaction was 4.09, especially students were satisfied with using collaboration tools. Second, online tool satisfaction was 4.63 for Mentimeter, 4.15 for Zoom, 4.09 for Padlet, and 3.81 for Quizizz in the order of the program. Based on the results, it was suggested applications of various online tools into class and textbooks for learners. At last, it was significant that the case of online Korean class was presented with many online tools and learners satisfaction in this study.

Construction of Mammalian Cell Expression Vector for pAcGFP-bFLIP(L) Fusion Protein and Its Expression in Follicular Granulosa Cells

Yang, Run Jun,Li, Wu Feng,Li, Jun Ya,Zhang, Lu Pei,Gao, Xue,Chen, Jin Bao,Xu, Shang Zhong Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.3

FLICE inhibitory protein (FLIP) is one of the important anti-apoptotic proteins in the Fas/FasL apoptotic path which has death effect domains, mimicking the pro-domain of procaspase-8. To reveal the intracellular signal transduction molecules involved in the process of follicular development in the bovine ovary, we cloned the c-FLIP(L) gene in bovine ovary tissue with the reverse transcription polymerase chain reaction (RT-PCR), deleted the termination codon in its cDNA, and directionally cloned the amplified c-FLIP(L) gene into eukaryotic expression vector pAcGFP-Nl, including AcGFP, and successfully constructed the fusion protein recombinant plasmid. After identifying by restrictive enzyme BglII/EcoRI and sequencing, pAcGFP-bFLIP(L) was then transfected into follicular granulosa cells, mediated by Lipofectamine 2000, the expression of AcGFP observed and the transcription and expression of c-FLIP(L) detected by RT-PCR and Western blot. The results showed that the cattle c-FLIP(L) was successfully cloned; the pAcGFPbFLIP(L) fusion protein recombinant plasmid was successfuly constructed by introducing a BglII/EcoRI cloning site at the two ends of the c-FLIP(L) open reading frame and inserting a Kozak sequence before the start codon. AcGFP expression was detected as early as 24 h after transfection. The percentage of AcGFP positive cells reached about 65% after 24 h. A 1,483 bp transcription was amplified by RT-PCR, and a 83 kD target protein was detected by Western blot. Construction of the pAcGFP-bFLIP(L) recombinant plasmid should be helpful for further understanding the mechanism of regulation of c-FLIP(L) on bovine oocyte formation and development.

원적외선에 의한 초미분말 홍삼의 ginsenoside 증가

김원우(Won-Woo Kim),박경배(Jing-Pei Piao),김성무(Cheng-Wu Jin),조동하(Dong-Ha Cho) 한국약용작물학회 2012 한국약용작물학회 학술대회논문집 Vol.2012 No.2