Angiostrongylus cantonensis: Scanning Electron Microscopic Observations on the Cuticle of Moulting Larvae

Xin Zeng,Jie Wei,Feng Wu,Feng Fung,Xiaoying Wu,Xi Sun,Huanqing Zheng,Zhiyue Lv,Zhongdao Wu 대한기생충학열대의학회 2013 The Korean Journal of Parasitology Vol.51 No.6

FASHION BLOGS: EFFECTS OF BLOGGING MOTIVATION AND SOCIAL CAPITALON ATTITUDE AND BLOG ENGAGEMENT

Xin Zeng,Jiyoung Kim,Kiseol Yang,Hwa-Ping Cheng 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

While it was found that consumers’ experience on purchase intention is significantly affected by greater involvement in blogging (Hsu & Tsou, 2011), not many fashion companies use blogs to improve online consumption and relationship with their employee or customer (Fieseler & Fleck, 2013). Further, despite the growing significance of blog communication, there is a lack of understanding for the impact of accumulation of social capital in the blogosphere on the consumers’ attitude and engagement in previous research. This study is designed to address this gap, and particularly the role of three dimensions of social capital (i.e., structural, relational, and cognitive) in understanding blog user’s attitude and engagement. The purpose of this study is to investigate 1) the effect of blog user’s motivation (i.e., perceived usefulness, perceived ease of use, reputation, altruism, enjoyment, community identification) on their level of social capital within the blog 2) the influence of structural social capital and cognitive social on user’s relational social capital and 3) the impact of relational social capital on blog user’s attitude and engagement. Data was collected through a marketing research firm utilizing online survey method. With 530 usable data, the results of this study indicated enjoyment have positive significant effect on structural social capital while community identification have negative significant effect on structural social capital. For the effect of blogging motivation on cognitive social capital, the result showed positive significant effect of perceived usefulness, altruism and community identification on cognitive social capital Further, structural social capital does not have relationship with relational social capital while cognitive social capital has significant effect on relational social capital. The results also indicated that the relational social capital has influence on blogging attitude, which in turn has strong positive relationship with blogging engagement. The findings of this study contribute some useful knowledge about fashion blog and the relationships of the three social capital dimensions to the literature. Also, this study not only provides theoretical insight into understanding the influence of fashion blog user’s motivation on blogging behavior and satisfaction of needs of belong, it also exposes the influence of relationships building in blog community on user’s blogging attitude and engagement. Previous studies focused more on social influence on knowledge sharing motivation, and most of the researchers paid attention to the interaction of cognitive social capital and relational capital. This study employs the knowledge sharing motivation findings of previous studies, and it uses the effective motivation factors to test if they have the same impacts on people’s blogging behavior.

DAZL binds to the transcripts of several Tssk genes in germ cells

Mei Zeng,Wen Qian Deng,Xin Ying Wang,Wei Min Qiu,Yan Yan Liu,Hua Qin Sun,Da Chang Tao,Si Zhong Zhang,Yong Xin Ma 한국생화학분자생물학회 2008 BMB Reports Vol.41 No.4

医药类高校专业课教师程思政学能力提升研究

曾欣(Xin Zeng),邓晶(Jing Deng),卢泉鸿(Quanhong Lu),刘薇薇(Weiwei Liu),程萍(Ping Cheng),張政(Zheng Zhang) 아시아사회과학학회 2023 International Science Research Vol.3 No.1

Ideological and political education of professional courses in colleges and universities is an important measure to strengthen curriculum education. Teachers of professional courses in medical colleges and universities should fully tap the resources of ideological and political education in teaching, integrate professional quality education and curriculum ideological and political education, and achieve all-round education, which is inseparable from the improvement of professional teachers' own ideological and political teaching ability. This study emphasizes the necessity of improving the ideological and political teaching ability of professional course teachers in medical colleges and universities, understands the current situation of the ideological and political teaching ability of professional course teachers, and explores the ways of improving the ideological and political teaching ability of professional course teachers.

Effects of lycopene on number and function of human peripheral blood endothelial progenitor cells cultivated with high glucose

Yao-Chi Zeng,Gui-Ping Mu,Shu-Fen Huang,Xue-Hui Zeng,Hong Cheng,Zhong-Xin Li 한국영양학회 2014 Nutrition Research and Practice Vol.8 No.4

BACKGROUND/OBJECTIVES: The objectives of this study were to investigate the effects of lycopene on the migration, adhesion, tube formation capacity, and p38 mitogen-activated protein kinase (p38 MAPK) activity of endothelial progenitor cells (EPCs) cultivated with high glucose (HG) and as well as explore the mechanism behind the protective effects of lycopene on peripheral blood EPCs. MATERIALS/METHODS: Mononuclear cells were isolated from human peripheral blood by Ficoll density gradient centrifugation. EPCs were identified after induction of cellular differentiation. Third generation EPCs were incubated with HG (33 mmol/L) or 10, 30, and 50 μg/mL of lycopene plus HG. MTT assay and flow cytometry were performed to assess proliferation and apoptosis of EPCs. EPC migration was assessed by MTT assay with a modified boyden chamber. Adhesion assay was performed by replating EPCs on fibronectin-coated dishes, after which adherent cells were counted. In vitro vasculogenesis activity was assayed by Madrigal network formation assay. Western blotting was performed to analyze protein expression of both phosphorylated and non-phosphorylated p38 MAPK. RESULTS: The proliferation, migration, adhesion, and in vitro vasculogenesis capacity of EPCs treated with 10, 30, and 50 μg/mL of lycopene plus HG were all significantly higher comapred to the HG group (P < 0.05). Rates of apoptosis were also significantly lower than that of the HG group. Moreover, lycopene blocked phosphorylation of p38 MAPK in EPCs (P < 0.05). To confirm the causal relationship between MAPK inhibition and the protective effects of lycopene against HG-induced cellular injury, we treated cells with SB203580, a phosphorylation inhibitor. The inhibitor significantly inhibited HG-induced EPC injury. CONCLUSIONS: Lycopene promotes proliferation, migration, adhesion, and in vitro vasculogenesis capacity as well as reduces apoptosis of EPCs. Further, the underlying molecular mechanism of the protective effects of lycopene against HG-induced EPC injury may involve the p38 MAPK signal transduction pathway. Specifically, lycopene was shown to inhibit HG-induced EPC injury by inhibiting p38 MAPKs.

Outcomes of Microendoscopic Discectomy and Percutaneous Transforaminal Endoscopic Discectomy for the Treatment of Lumbar Disc Herniation: A Comparative Retrospective Study

Arjun Sinkemani,Xin Hong,Zeng-Xin Gao,Su-Yang Zhuang,Zan-Li Jiang,Shao-Dong Zhang,Jun-Ping Bao,Lei Zhu,Pei Zhang,Xin-Hui Xie,Feng Wang,Xiao-Tao Wu 대한척추외과학회 2015 Asian Spine Journal Vol.9 No.6

Study Design: Retrospective, case control evaluation of 86 patients who underwent microendoscopic discectomy (MED) and percutaneous transforaminal endoscopic discectomy (PTED) for the treatment of lumbar disc herniation (LDH). Purpose: To evaluate the safety and the outcomes of MED and PTED for the treatment of LDH. Overview of Literature: MED and PTED are minimally invasive surgical techniques for lower back pain. Studies to date have shown that MED and PTED are safe and effective treatment modalities for LDH. Methods: A retrospective study was performed in patients with LDH treated with MED (n=50) and transforaminal endoscopic discectomy (PTED; n=36) in our hospital. All patients were followed-up with self-evaluation questionnaires, Oswestry disability index (ODI), medical outcomes study 36-item short form health survey and MacNab criteria. All the patients in both groups were followed up to 12 months after the operation. Results: ODI questionnaire responses were not statistically different between the MED and PTED groups (53.00 vs. 48.72) before treatment. Average scores and minimal disability after 5 days to 12 months of follow-up were 4.96 in the MED group and 3.61 in the PTED group. According to MacNab criteria, 92.0% of the MED group and 94.4% of the PTED group had excellent or good results with no significant difference. Conclusions: There was no significant difference between MED and PTED outcomes. Further large-scale, randomized studies with long-term follow-up are needed.

Triterpenoid Saponins from the Seeds of Caragana microphylla

Gui-Lin Jin,Cheng-Jian Zheng,Wen-Bo Xin,Zhu-Jun Mao,Pei-Xin Sun,Zhi-Xin Zeng,Lu-Ping Qin 대한약학회 2011 Archives of Pharmacal Research Vol.34 No.6

Two new triterpenoid saponins, namely caraganoside C (1) and caraganoside D (2), were isolated from the seeds of Caragana microphylla. Their structures were elucidated on the basis of spectroscopic analyses, including homo- and hetero-nuclear correlation NMR experiments (COSY, HSQC and HMBC). Both 1 and 2 exhibited moderate inhibitory activity against NO production in LPS-stimulated RAW264.7 cells with IC_50 values of 26.4 μM and 32.2 μM, respectively. In addition, 1 showed weak cytotoxicity against MCF-7, HL-60, HCT116, and A549 cell lines.

Low-Temperature Selective Catalytic Reduction of NO with NH3 Over Mn-Fe Mixed Metal Oxides on the Nitric Vapor Functionalized Carbon Nanotubes Prepared by a Polyol Process

Xin Lv,Liheng Zhang,Sheng Zhan,Zhen Li,Yi Zeng 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.4

Highly dispersed Mn-Fe mixed metal oxides were supported on the nitric vapor functionalized carbon nanotubes (CNTs) by the polyol process for the low-temperature selective catalytic reduction (SCR) of NO with NH3. X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), H2 temperature-programmed reduction (H2-TPR) and Fourier transform infrared (FT-IR) spectroscopy have been used to elucidate the structure and surface properties of the obtained catalysts. It was found that the Mn-Fe/ VF-CNTs catalysts synthesized by the polyol process exhibited higher activity and more extensive operating-temperature window, compared to the catalysts prepared by the impregnation method. On the basis of the catalyst characterization, the better dispersion of metal oxides on the CNTs surface, the more chemisorbed oxygen species, the higher Mn4+/Mn and Oα/Oα+Oβ ratios played key roles in the excellent catalytic performance of the catalyst in the low-temperature SCR of NO to N2 with NH3.

The Effect of Herb-Partition Moxibustion on Toll-like Receptor 4 in Rabbit Aorta during Atherosclerosis

Zeng-Hui Yue,Xin-Qun He,Xiao-Rong Chang,Jian-Ling Yuan,Bao-Sheng Yu,Mi Liu,Ling Fu,Liang Zhang,Li-Chao Shang 사단법인약침학회 2012 Journal of Acupuncture & Meridian Studies Vol.5 No.2

Objective: To explore the mechanism of Toll-like receptor (TLR4) inhibition in the delay of formation of atherosclerosis by herb-partition moxibustion. Method: Seventy-five rabbits were randomly assigned to one of five groups: blank, atherosclerosis (AS) model, direct moxibustion, herb-partition moxibustion, and drug treatment. With the exception of the blank group, all rabbits were given a high-fat diet in addition to immunologic injury to create the AS model. The experiments were carried out for 16 weeks, at which time the aorta was removed from each rabbit. Immunohistochemical methods were used to detect the gray level of the aortic TLR4 to observe the immunologic competence of its antigens. Fluorescent quantitative polymerase chain reaction was used to detect the expression of TLR4 messenger RNA (mRNA) in the aorta. Results: The gray-scale value of TLR4 and the TLR4 mRNA expression significantly decreased (p < 0.05) in the direct moxibustion, herb-partition moxibustion, and drug treatment groups. Furthermore, the effects of the herb-partition moxibustion and drug treatment were superior to those of the direct moxibustion. Conclusion: Herb-partition moxibustion inhibits aortic TLR4 activity and mRNA expression,showing that herb-partition moxibustion delays the formation of atherosclerosis through the inhibition of TLR4 expression.

Effects of the Substitution of Mischmetal for PrNd on the Microstructures and Magnetic Properties of Rapidly Quenched (MM)PrNd-Fe-B Nanocrystalline Magnets

Zeng-ru Zhao,Xin Wang,Xue-feng Zhang,Qiang Ma,Yan-li Liu,Yong-feng Li,Fei Liu,Gao-feng Wang 한국자기학회 2017 Journal of Magnetics Vol.22 No.1

Mischmetal of Bayan Obo ore was utilized to prepare the high performance (Pr7.34Nd21.86)1-xMMxFe68.7Al0.1-Cu0.12Co0.88B ribbons using melt-spinning method. Phase composition and magnetic properties were investigated at room temperature. The ribbons mainly consist of R2Fe14B phase in isotropic nanostructure. Both coercivity and maximum energy product decrease with the increase of MM content. The magnetic parameters of the ribbons with MM = 20 % in mass are Br = 7.38 kGs, Hcj = 13.66 kOe, (BH)max = 11.81 MGOe. Henkel plots were applied to demonstrate the exchange coupling interaction between grains.