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Search Results: 1 - 10 of 127051 matches for " Yabing Li "
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Diagnosis of Premature Senescence of Cotton Using SPAD Value  [PDF]
Pengcheng Li, Helin Dong, Aizhong Liu, Jingran Liu, Miao Sun, Guoping Wang, Siping Zhang, Yabing Li, Shuchun Mao
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.511107
Abstract: Field experiments were conducted in 2011 on an experimental farm at the Cotton Research Insti-tute, Chinese Academy of Agricultural Sciences, Anyang, China. We conducted experiments with a “SPAD-502” meter to quickly measure the relative value of chlorophyll content in the leaf blades of field cotton. Our goal was to seek a suitable leaf on a cotton plant to diagnose senescence status of crop plants at later stages of growth. We began by studying the dynamic change rule of the dis-tal-most four leaves of the cotton plant during the entire growth period with two early-maturing cultivars (CCRI 36, CCRI 50) and two mid-maturing cultivars (CCRI 41, SCRC 28). We also examined the effect of different nitrogen and potassium fertilizer rates on SPAD values of the leaves of SCRC 28. Our results suggest that SPAD values of the 1st distal stem leaves from two early cultivars can act as good indicators of senescence status in the plants, if they are measured between 10 d before the boll-opening stage and 10 d after boll opening stage. Differences of SPAD values of the 3rd distal stem leaves of two mid-maturing cultivars measured between about 15 d before the boll opening stage and 15 d after the boll opening stage can also be used to measure senescence status in these cotton cultivars. The conclusion can be used for cotton producer to manage N fertilizer better at later growth stage.
Selection and Research for Online Registration System’s Database System  [PDF]
Yabing Chen, Haiyong You
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.63B008
Abstract: Based on the Online Registration System (ORS) characteristics and key technology analysis, this paper points out that that a good performance and high stability of the ORS lies in the choice of the system database. Database clustering technology which has merits such as concurrent processing, easy expansion, and high security is proposed to achieve database subsystem of ORS, and the design of the database cluster system framework is available in this paper. Finally, we also explore the database load balancing of the cluster system, heterogeneous database replication technology.
Oyster Shell Proteins Originate from Multiple Organs and Their Probable Transport Pathway to the Shell Formation Front
Xiaotong Wang, Li Li, Yabing Zhu, Yishuai Du, Xiaorui Song, Yuanxin Chen, Ronglian Huang, Huayong Que, Xiaodong Fang, Guofan Zhang
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0066522
Abstract: Mollusk shell is one kind of potential biomaterial, but its vague mineralization mechanism hinders its further application. Mollusk shell matrix proteins are important functional components that are embedded in the shell, which play important roles in shell formation. The proteome of the oyster shell had been determined based on the oyster genome sequence by our group and gives the chance for further deep study in this area. The classical model of shell formation posits that the shell proteins are mantle-secreted. But, in this study, we further analyzed the shell proteome data in combination with organ transcriptome data and we found that the shell proteins may be produced by multiple organs though the mantle is still the most important organ for shell formation. To identify the transport pathways of these shell proteins not in classical model of shell formation, we conducted a shell damage experiment and we determined the shell-related gene set to identify the possible transport pathways from multiple organs to the shell formation front. We also found that there may exist a remodeling mechanism in the process of shell formation. Based on these results along with some published results, we proposed a new immature model, which will help us think about the mechanism of shell formation in a different way.
Indoor air levels of SO2 、HCHO and TVOCs in dwellings in Nanjing
南京市居室内SO2、HCHO和TVOCs污染的研究

TIAN Yuanchun,SUN Yabing,FENG Jingwei,LI Shu,
田园春
,孙亚兵,冯景伟,李署

环境科学学报 , 2007,
Abstract: The concentrations of SO_2 , HCHO and TVOCs in 20 households characterized by different dwelling factors in the urban and suburb of Nanjing were measured in the summer (August) and winter (December) of the year 2005. The results indicate that the concentrations of SO_ 2 , HCHO and TVOCs exceed the standard value in summer when temperature is high, relative humidity is high and ventilation is high, and decrease in winter. The decoration materials and constructions are the main sources of indoor HCHO and TVOCs. In addition, cooking in the kitchen is also contributed to indoor TVOCs. The concentration of outdoor SO_2 in the urban and suburb is quite high, and the I/O value is not more than 1, so it is expected that the high concentration of outdoor SO_2 is the main source of indoor SO_2.
Multimodality Imaging Evaluation of Functional and Clinical Benefits of Percutaneous Coronary Intervention in Patients with Chronic Total Occlusion Lesion
Dongdong Sun, Jing Wang, Yue Tian, Kazim Narsinh, Haichang Wang, Chengxiang Li, Xiaowei Ma, Yabing Wang, Dongjuan Wang, Chunhong Li, Joseph C Wu, Jie Tian, Feng Cao
Theranostics , 2012,
Abstract: Aims: To determine the effects of percutaneous coronary intervention (PCI) on cardiac perfusion, cardiac function, and quality of life in patients with chronic total occlusion (CTO) lesion in left anterior descending (LAD) coronary artery. Methods and Results: Patients (n=99) with CTO lesion in the LAD coronary artery who had successfully undergone PCI were divided into three groups based on the SPECT/CTCA fusion imaging: (a) no severe cardiac perfusion defects (n=9); (b) reversible cardiac perfusion defects (n=40); or (c) fixed cardiac perfusion defects (n=50). No statistical difference of perfusion abnormality was observed at 6 months and 1 year after PCI in group (a). In group (b), SPECT/CTCA fusion imaging demonstrated that cardiac perfusion abnormality was significantly decreased 6 month and 1 year after PCI. Left ventricular ejection fraction (LVEF) increased significantly at 6 months and 1 year follow up. Quality of life improved at 6 months and 1 year after PCI procedure. Moreover, patients in group (c) also benefited from PCI therapy: a decrease in cardiac perfusion abnormality, an increase in LVEF, and an improvement in quality of life. PCI of coronary arteries in addition to LAD did not significantly affect cardiac function and quality of life improvement in each group. Conclusions: PCI exerts functional and clinical benefits in patients with CTO lesion in LAD coronary artery, particularly in patients with reversible cardiac perfusion defects. SPECT/CTCA fusion imaging may serve as a useful tool to evaluate the outcomes of patients with CTO lesion in LAD coronary artery.
The Independence of Signaling Pathways Mediating Increased Expression of Plasminogen Activator Inhibitor Type in HepG2 Cells Exposed to Free Fatty Acids or Triglycerides
Yabing Chen,David J. Schneider
Experimental Diabetes Research , 2002, DOI: 10.1080/15604280214488
Abstract: We have shown that both free fatty acids (FFA) and triglycerides (TG) increase expression of plasminogen activator inhibitor type 1 (PAI-1) in vivo and in vitro. To determine signaling mechanisms responsible, HepG2 cells were exposed to FFA, emulsified TG, or the combination. The combination of FFA and TG increased PAI-1 to a greater extent than either agent alone (fold induction: 0.45mM FFA 1.7±0.2, 1000mg/dl TG 1.9±0.1, both 2.3±0.2, n=10, p<0.05 for comparison of combination with either alone). Cells transfected with PAI-1 5' flanking region containing the 4G or 5G polymorphism displayed similar activity in response to FFA, but modestly greater activity with the 4G polymorphism in response to TG (fold induction: 5G-1.28±0.14 and 4G- 1.46±0.13, n=6, p<0.05 for comparison). Deletion analyses demonstrated that FFA and TG induce PAI-1 expression through distinct regions of the promoter. Inhibition of protein kinase C inhibited the response to FFA but not TG. Accordingly, increased FFA and TG contribute to increased PAI- I through independent mechanisms.
Reduction of Phosphorylated Synapsin I (Ser-553) Leads to Spatial Memory Impairment by Attenuating GABA Release after Microwave Exposure in Wistar Rats
Simo Qiao, Ruiyun Peng, Haitao Yan, Yabing Gao, Changzhen Wang, Shuiming Wang, Yong Zou, Xinping Xu, Li Zhao, Ji Dong, Zhentao Su, Xinxin Feng, Lifeng Wang, Xiangjun Hu
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0095503
Abstract: Background Abnormal release of neurotransmitters after microwave exposure can cause learning and memory deficits. This study investigated the mechanism of this effect by exploring the potential role of phosphorylated synapsin I (p-Syn I). Methods Wistar rats, rat hippocampal synaptosomes, and differentiated (neuronal) PC12 cells were exposed to microwave radiation for 5 min at a mean power density of 30 mW/cm2. Sham group rats, synaptosomes, and cells were otherwise identically treated and acted as controls for all of the following post-exposure analyses. Spatial learning and memory in rats was assessed using the Morris Water Maze (MWM) navigation task. The protein expression and presynaptic distribution of p-Syn I and neurotransmitter transporters were examined via western blotting and immunoelectron microscopy, respectively. Levels amino acid neurotransmitter release from rat hippocampal synaptosomes and PC12 cells were measured using high performance liquid chromatograph (HPLC) at 6 hours after exposure, with or without synapsin I silencing via shRNA transfection. Results In the rat experiments, there was a decrease in spatial memory performance after microwave exposure. The expression of p-Syn I (ser-553) was decreased at 3 days post-exposure and elevated at later time points. Vesicular GABA transporter (VGAT) was significantly elevated after exposure. The GABA release from synaptosomes was attenuated and p-Syn I (ser-553) and VGAT were both enriched in small clear synaptic vesicles, which abnormally assembled in the presynaptic terminal after exposure. In the PC12 cell experiments, the expression of p-Syn I (ser-553) and GABA release were both attenuated at 6 hours after exposure. Both microwave exposure and p-Syn I silencing reduced GABA release and maximal reduction was found for the combination of the two, indicating a synergetic effect. Conclusion p-Syn I (ser-553) was found to play a key role in the impaired GABA release and cognitive dysfunction that was induced by microwave exposure.
The Compound Chinese Medicine “Kang Fu Ling” Protects against High Power Microwave-Induced Myocardial Injury
Xueyan Zhang, Yabing Gao, Ji Dong, Shuiming Wang, Binwei Yao, Jing Zhang, Shaohua Hu, Xinping Xu, Hongyan Zuo, Lifeng Wang, Hongmei Zhou, Li Zhao, Ruiyun Peng
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0101532
Abstract: Background The prevention and treatment of Microwave-caused cardiovascular injury remains elusive. This study investigated the cardiovascular protective effects of compound Chinese medicine “Kang Fu Ling” (KFL) against high power microwave (HPM)-induced myocardial injury and the role of the mitochondrial permeability transition pore (mPTP) opening in KFL protection. Methods Male Wistar rats (100) were divided into 5 equal groups: no treatment, radiation only, or radiation followed by treatment with KFL at 0.75, 1.5, or 3 g/kg/day. Electrocardiography was used to Electrophysiological examination. Histological and ultrastructural changes in heart tissue and isolated mitochondria were observed by light microscope and electron microscopy. mPTP opening and mitochondrial membrane potential were detected by confocal laser scanning microscopy and fluorescence analysis. Connexin-43 (Cx-43) and endothelial nitric oxide synthase (eNOS) were detected by immunohistochemistry. The expression of voltage-dependent anion channel (VDAC) was detected by western blotting. Results At 7 days after radiation, rats without KFL treatment showed a significantly lower heart rate (P<0.01) than untreated controls and a J point shift. Myocyte swelling and rearrangement were evident. Mitochondria exhibited rupture, and decreased fluorescence intensity, suggesting opening of mPTP and a consequent reduction in mitochondrial membrane potential. After treatment with 1.5 g/kg/day KFL for 7 d, the heart rate increased significantly (P<0.01), and the J point shift was reduced flavorfully (P<0.05) compared to untreated, irradiated rats; myocytes and mitochondria were of normal morphology. The fluorescence intensities of dye-treated mitochondria were also increased, suggesting inhibition of mPTP opening and preservation of the mitochondrial membrane potential. The microwave-induced decrease of Cx-43 and VDAC protein expression was significantly reversed. Conclusion Microwave radiation can cause electrophysiological, histological and ultrastructural changes in the heart. KFL at 1.5 g/kg/day had the greatest protective effect on these cardiovascular events. mPTP plays an important role in the protective effects of KFL against microwave-radiation-induced myocardial injury.
Coexistence of a single cerebral arteriovenous malformation and spinal arteriovenous malformation
Wang Yabing,Zhang Hongqi,Ling Feng
Neurology India , 2009,
Abstract: The coexistence of a cerebral and a spinal arteriovenous malformation (AVM) together is extremely rare. We present a 31-year-old woman, who suffered from severe root pains in the left upper extremity. Magnetic resonance imaging (MRI) revealed the abnormal vessels in the left occipital lobe and upper cervical segment of spinal cord. Cerebral angiography and spinal angiogram revealed two AVMs: One was in the right occipital lobe and the other was located in the C1-C2 segments of cervical cord. She had no other vascular lesions, and nor did her other family members. As the primary problem in her was left upper extremity root pains, which we considered was related to the spinal AVM, the first therapeutic treatment was focused on spinal AVM. The cerebral AVM of the right occipital lobe was surgically resected after part embolization.
The Damaging Effects of Different Bands Electromagnetic Radiation on The Rat Sertoli Cells
不同波段电磁辐射致大鼠睾丸支持细胞的损伤效应

WU Hui,WANG Dewen,WANG Shuiming,ZHAO Li,ZUO Hongyan,GAO Yabing,PENG Ruiyun,
吴惠
,王德文,王水明,赵黎,左红艳,高亚兵,彭瑞云

生物物理学报 , 2011,
Abstract: To investigate comparatively the damaging effects of EMP (electromagnetic pulse), S-HPM (S-band high power microwave) and X-HPM (X-band high power microwave) on rat Sertoli cells. Primary Sertoli cells were isolated from 3-wk-old Wistar rats, and exposed to EMP, S-HPM and X-HPM respectively. After radiation by the three bands electromagnetic radiation respectively, the number of late apoptotic and necrotic Sertoli cells was increased significantly in three groups examined by flow cytometry; The general metabolic activity of Sertoli cells in EMP group were decrease significantly after irradiation analyzed by MTT test; The total number of impaired Sertoli cells were increased significantly observed by light microscope. Granular degeneration and vacuolar degeneration were seen in the cytoplasm. Ultrastructural changes: mitochondria swelling and vacuolating, endoplasmic reticular various degree dilating (particularly in S-ER) and ribosome-scaling in R-ER and so on. Three bands of electromagnetic radiation could induce different injury effects in rat Sertoli cells. The degree of injury effects varied according to different microwaves. The rank as follows: EMP>X-HPM>S-HPM.
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