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, Volume 6 Issue 2   
Cellular growth under hydrostatic pressure using bovine aortic EC-SMC co-cultured ePTFE vascular graft
SUN Lei, NIWA Koichi, LIN Jian-zhong, KARINO Takeshi
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 2): 1-.   https://doi.org/10.1631/jzus.2005.B0079
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High blood pressure (hypertension) is implicated in the development of atherosclerosis. Blood vessels are constantly subjected to stretch due to blood pressure and changes in stretch usually instigate adaptive vascular remodeling, including abnormal growth and proliferation of vascular smooth muscle cells (VSMCs) as well as extracellular matrix (ECM). In this experiment, we used bovine aortic endothelial cells and smooth muscle cells (EC-SMC) co-cultured ePTFE vascular grafts subjected to normal atmospheric pressure (as a control), and 100 mmHg hydrostatic pressure for 7 d. The increase of cell layer thickness was observed. When measured, the cell layer thickness increased by 116.2%. The increase of collagen (Type IV) synthesis was also observed in the immunohistochemistry assay. When stained with toluidine blue, the cells showed metachromatic phenomenon.
Expression of a begomoviral DNA|? gene in transgenic Nicotiana plants induced abnormal cell division
CUI Xiao-feng, LI Yun-qin, HU Dong-wei, ZHOU Xue-ping
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 2): 2-.   https://doi.org/10.1631/jzus.2005.B0083
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An increasing number of monopartite begomoviruses are being identified that a satellite molecule (DNA|?) is required to induce typical symptoms in host plants. DNA|? encodes a single gene (termed |?C1) encoded in the complementary-sense. We have produced tra
Two ancient rounds of polyploidy in rice genome
ZHANG Yang, XU Guo-hua, GUO Xing-yi, FAN Long-jiang
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 2): 3-.   https://doi.org/10.1631/jzus.2005.B0087
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An ancient genome duplication (PPP1) that predates divergence of the cereals has recently been recognized. We report here another potentially older large-scale duplication (PPP2) event that predates monocot-dicot divergence in the genome of rice (Oryza sativa L.), as inferred from the age distribution of pairs of duplicate genes based on recent genome data for rice. Our results suggest that paleopolyploidy was widespread and played an important role in the evolution of rice.
Volatile constituents in the flowers of Elsholtzia argyi and their variation: a possible utilization of plant resources after phytoremediation
PENG Hong-yun, YANG Xiao-e
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 2): 4-.   https://doi.org/10.1631/jzus.2005.B0091
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Phytoremediation effectiveness and remediation costs are driving factors of this project. Full utilization of plant resources after their being used for phytoremediation is an unsolved problem. GC/MS technique was used to investigate the volatiles of the
Gama-aminobutyric acid accumulation in Elsholtzia splendens in response to copper toxicity
YANG Xiao-e, PENG Hong-yun, TIAN Sheng-ke
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 2): 5-.   https://doi.org/10.1631/jzus.2005.B0096
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A solution with different Cu supply levels was cultured to investigate gama-aminobutyric acid (GABA) accumulation in Elsholtzia splendens, a native Chinese Cu-tolerant and accumulating plant species. Increasing Cu from 0.25 to 500 |ìmol/L significantly enhanced levels of GABA and histidine (His), but considerably decreased levels of aspartate (Asp) and glutamate (Glu) in the leaves. The leaf Asp level negatively correlated with leaf Cu level, while leaf GABA level positively correlated with leaf Cu level. The leaf Glu level negatively correlated with leaf GABA level in Elsholtzia splendens. The depletion of leaf Glu may be related to the enhanced synthesis of leaf GABA under Cu stress
Cytotoxicity of epigallocatechin-3-gallate to LNCaP cells in the presence of Cu2+
YU Hai-ning, SHEN Sheng-rong, XIONG Yao-kang
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 2): 9-.   https://doi.org/10.1631/jzus.2005.B0125
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Epigallocatechin-3-gallate (EGCG) has shown remarkably anti-cancer activity, with its bioactivity being related to reactive conditions, such as pH and metal ions. The present study investigated the degradation of EGCG and its effect on prostate cancer cel
Representative appressorium stage cDNA library of Magnaporthe grisea
LU Jian-ping, LIU Tong-bao, YU Xiao-yun, LIN Fu-cheng
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 2): 10-.   https://doi.org/10.1631/jzus.2005.B0132
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A mature appressorium cDNA library of rice blast fungus, Magnaporthe grisea, was constructed in a |?TriplEx2 vector by SMARTTM cDNA library containing 2.37?á106 independent clones about 100% of which harbor foreign cDNA inserts with average size of 660 bp. Of 9 randomly selected clones, 2 expressed sequence tags (ESTs) sequences did not have homologous EST sequences of M. grisea in GenBank. The appressorium cDNA library is suitable for gene expression analysis and function analysis of the late stages of appressorium formation and the early stages of penetration of M. grisea.
Studies on nutrient uptake of rice and characteristics of soil microorganisms in a long-term fertilization experiments for irrigated rice
ZHANG Qi-chun, WANG Guang-huo
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 2): 13-.   https://doi.org/10.1631/jzus.2005.B0147
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The ecosystem characteristics of soil microorganism and the nutrient uptake of irrigated rice were investigated in a split-block experiment with different fertilization treatments, including control (no fertilizer application), PK, NK, NP, NPK fertilizati
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