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( Da Wei Chen ),( Zhen Quan Yang ),( Xia Chen ),( Yu Jun Huang ),( Bo Xing Yin ),( Fei Xiang Guo ),( Hai Qing Zhao ),( Jia Di Huang ),( Yun Wu ),( Rui Xia Gu ) 한국미생물 · 생명공학회 2015 Journal of microbiology and biotechnology Vol.25 No.5
Accumulating evidence indicates that lactic acid bacteria could improve host physiology and lipid metabolism. To investigate the effect of the gut microbiota on host lipid metabolism, a hyperlipidemic rat model was established by feeding rats a high-fat diet for 28 days, and the gut microbiota of the rats was analyzed using real-time PCR before and after administration of Lactobacillus rhamnosus hsryfm 1301 and its fermented milk for 28 days. The findings showed that the Lactobacillus spp., Bifidobacterium spp., Bacteroides spp., and Enterococcus spp. content in the hyperlipidemic rats gut was increased significantly (p < 0.05), while the Clostridium leptum and Enterobacter spp. content was decreased significantly after intervening with L. rhamnosus hrsyfm 1301 and its fermented milk for 28 days (p < 0.05). Furthermore, the lipid levels of the serum and the liver were decreased significantly (p < 0.05) and the fecal water content was increased significantly (p < 0.05) in the hyperlipidemic rats after the intervention, and hepatocyte fatty degeneration of liver tissues was also prevented. A positive correlation was observed between the Clostridium leptum content and the level of serum cholesterol, triglycerides, low-density lipoprotein, and high-density lipoprotein, and a negative correlation was observed between the Enterobacter spp. content and the Lactobacillus spp. and Bifidobacterium spp. content in the hyperlipidemic rats gut. These results suggest that the gut microbiota and lipid metabolism of hyperlipidemic rats could be improved by supplementation with L. rhamnosus hsryfm 1301 and its fermented milk.
Entomological Society of China: A brief introduction
Da-Wei Huang 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
The Entomological Society of China (ESC) is the largest non-government organization in the world serving the professional and scientific needs of entomologists and people in related disciplines. 1. Founded in 1944, the ESC has more than 13800 members affiliated educational or research institutions, health agencies, private industry, and the Chinese government. Members are researchers, teachers, extension service personnel, administrators, marketing representatives, research technicians, consultants, students, and hobbyists. 2. The ESC is a not-for-profit professional society governed by a board comprised of members. ESC is affiliated with the China Association for Science and Technology and its headquarter is attached to the Institute of Zoology, Chinese Academy of Sciences, Beijing. 3. The ESC holds together members and organizes various academic activities in promoting the development of science and technology in the fields of entomology. The society endeavors to popularize scientific knowledge and plays an advisory role in solving important problems related to insects and in entomological theories. The purpose of the society is to promote entomology for the advancement of science and the benefit of society through: scientific and professional communications, outreach on science and public policy, program development, continuing education, and fostering interest in entomology. 4. ESC is vivid in international affairs and has wide relationship with many foreign societies and institutions. Now ESC has established bilateral and multilateral cooperation with the Convention of Biological Diversity, the International Society of Entomology, the Asia-Pacific Entomological Association, and etc. 5. The Supervisory Council (Governing Board) makes important decisions and carries out essential functions of the society. Its members, volunteering their time and energy, are elected by the members for every five years. 6. Activities of the ESC can be roughly grouped into following categories: meeting, programming, consulting and popularizing on entomology. The premier event of the Society is its Annual Meeting. 7. The society have 6 working committees (Science Popularization, Technical Consulting, International affairs, Organizing, Youth, Financial), and 12 special academic committees (Insect Faunistics and Systematics, Insect Physiology and Biochemistry, Ecology, Insecticide and Toxicology, Agricultural Entomology, Forest Entomology, Medical Entomology, Biological Control, Insect Resources, Urban Entomology, Acarology, and Butterflies). 8. The ESC offers journals that provide unsurpassed coverage of the broad science of entomology. The society publishes scientific journals, such as Acta Entomologica Sinica, Insects Science, Chinese Journal of Applied Entomology (former Entomological Knowledge), Acta Zootaxonomica Sinica, and Acta Parasitologica et Medica. 9. The ESC is seeking for new routines to meet the needs of developments of sciences, communities, and economy.
Bufalin Induces Mitochondrial Pathway-Mediated Apoptosis in Lung Adenocarcinoma Cells
Ding, Da-Wei,Zhang, Yong-Hong,Huang, Xin-En,An, Qing,Zhang, Xun Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.23
Background: To evaluate the effects of bufalin in A549 human lung adenocarcinoma epithelial cells in vitro and assess the underlying mechanisms. Materials and Methods: Human A549 non-small cell lung cancer (NSCLC) cells were treated with various concentrations of bufalin. Cell proliferation was measured by CCK-8 assay, apoptotic cell percentage was calculated by flow cytometry and morphological change was observed by inverted phase contrast microscopy/transmission electron microscopy. In addition, the membrane potential of mitochondria was detected by JC-1 fluorescence microscopy assay, and the related protein expression of cytochrome C and caspase-3 was analyzed by Western blotting. Results: Bufalin could inhibit the proliferation of A549 cells via induction of apoptosis, with the evidence of characteristic morphological changes in the nucleus and mitochondria. Furthermore, bufalin decreased the mitochondrial membrane potential with up-regulation of cytochrome C in the cytosol, and activation of caspase-3. Conclusions: Bufalin inhibits the proliferation of A549 cells and triggers mitochondria-dependent apoptosis, pointing to therapeutic application for NSCLC.
Distributed Security Control for Complex Cyber-physical Systems Against Denial-of-service Attacks
Xiaojie Huang,Da-Wei Ding,Zhiqiang Li,Cuijuan An 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.2
This paper investigates the problem of distributed security control for complex cyber-physical systems against denial-of-service (DoS) attacks. A distributed security controller with interconnected control nodes is proposed on the basis of piecewise Lyapunov functions. The bounds of attack frequency and attack duration are explicitly calculated to achieve security synchronization. Meanwhile, an event-based data update strategy is proposed to resist the negative influence of DoS attacks on data transmission. Finally, a simulation example is given to verify the effectiveness of the proposed method.
Fault Diagnosis and Optimal Fault-Tolerant Control for Systems with Delayed Measurements and States
Juan Li,Hong-Wei Gao,Peng Zhang,Da-Rong Huang 제어·로봇·시스템학회 2012 International Journal of Control, Automation, and Vol.10 No.1
This note deals with the problems of fault diagnosis and fault-tolerant control for systems with delayed measurements and states. The main contribution consists in two aspects. First, by solving the Riccati equation and Sylvester equation, an optimal fault-tolerant control law is designed for systems with delayed measurements and states. The existence and uniqueness of the optimal fault-tolerant control law are proved. Second, the physically unrealizable problem of the optimal fault-tolerant con-trol law is solved by proposing a novel fault diagnoser for systems with delayed measurements and states. Finally, a numerical example is given to demonstrate the feasibility and validity of the proposed schemes.
Zhimin Pan,Yanhai Xi,Wei Huang,김긍년,이성,신동아,Kai Huang,Yu Chen,Zhongren Huang,Da He,하윤 대한척추신경외과학회 2019 Neurospine Vol.16 No.2
Objective: To investigate three-planar radiographic results and patient-reported outcomes (PROs) after correcting chronic atlantoaxial instability (AAI) by translaminar screw (TLS) and pedicle screw (PS) fixation, and to explore the potential association of atlantoaxial realignment with PRO improvements. Methods: Twenty-three patients who underwent C1 lateral mass screw (LMS)-C2 TLS and 29 who underwent C1 LMS-C2 PS with ≥2 years of follow-up were retrospectively analyzed. Three-planar (sagittal, coronal, and axial) radiographic parameters were measured. PROs including the Neck Disability Index (NDI), Japanese Orthopaedic Association (JOA) score and the Short Form 36 Physical Component Summary (SF-36 PCS) were documented. Factors potentially associated with PROs were identified. Results: The radiographic parameters significantly changed postoperatively except the C1–2 midlines’ intersection angle in the TLS group (p=0.073) and posterior atlanto-dens interval in both groups (p=0.283, p=0.271, respectively). The difference in bilateral odontoid lateral mass interspaces at last follow-up was better corrected in the TLS group than in the PS group (p=0.010). Postoperative PROs had significantly improved in both groups (all p<0.05). Thereinto, NDI at last follow-up was significantly lower in the TLS group compared with PS group (p=0.013). In addition, blood loss and operative time were obviously lesser in TLS group compared with PS group (p=0.010, p=0.004, respectively). Multivariable regression analysis revealed that a change in C1–2 Cobb angle was independently correlated to PROs improvement (NDI: β=-0.435, p=0.003; JOA score: β=0.111, p=0.033; SF-36 PCS: β=1.013, p=0.024, respectively), also age ≤40 years was independently associated with NDI (β=5.40, p=0.002). Conclusion: Three-planar AAI should be reconstructed by C1 LMS-C2 PS fixation, while sagittal or coronal AAI could be corrected by C1 LMS-C2 TLS fixation. PROs may improve after atlantoaxial reconstruction in patients with chronic AAI. The C1–2 Cobb angle is an independent predictor of PROs after correcting chronic AAI, as is age ≤40 years for postoperative NDI.
Image-processing Based Adaptive Human-computer Interaction System
Qi-Jie Zhao,Da-Wei Tu,Zhi-Hua Huang 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2007 International Journal of Assistive Robotics and Me Vol.8 No.3
In this paper, we have taken into account some impact factors on Infrared TVbased eye gaze input system, and proposed some solutions to these problems. In order to improve the adaptation of eye-gaze input modality to large variation of environment light and its lighteness, a set of image capturing equipment and image thresholding model has been put forward. Furthermore, some control strategies and methods have been proposed to decrease the influences on the eye gaze system caused by users head movement. At last, some experiments have been done to verify the feasibility of the strategies and methods. The results have shown that the system permits user’s head freely move in certain conditions. Moreover, higher accuracy can be gotten for eye gaze input.