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Articles by Ming Zhong
Total Records ( 3 ) for Ming Zhong
  Liang J. Liu , Ming Zhong , Qian Wang , Fengping Wang , Li X. Shen and Wei Li
  Background: Early change of cells in Alzheimer’s Disease (AD) occurs in hippocampal region. Investigation of hippocampal neuronal cells were provide useful information about this disease. Quercetin is a phytoestrogen, which has similar biological activity as estrogen. Since the mechanism of quercetin in prevention of AD development is still unknown, there is a need to investigate whether, quercetin can regulate hippocampal neuronal cells. Methodology and Results: Rat hippocampal neurons were isolated from one day old Sprague Dawley rats and treated with estrogen, quercetin and estrogen receptor antagonists. Cell viability was determined by MTT assay, neurite outgrowth was measured by fluorescent microsope and estrogen receptors were determine by Western blot. Quercetin functions like estrogen to increase hippocampal neuronal cell viability. It can also increase neurite outgrowth. Moreover, the effect of quercetin on hippocampal neuronal cells was mediated by estrogen receptor alpha instead of estrogen receptor beta. Furthermore, quercetin increased estrogen receptor alpha expression, but did not affect estrogen receptor beta expression. Conclusion: In conclusion, quercetin like estrogen can enhance hippocampal neuronal cell viability and promote neuritogenesis through estrogen receptor alpha.
  Ming Zhong , Wen-Wei Guo , Guang-hui Song and Jun-hui Xu
  This paper try to fully reveal the key factors affecting the credit level of small micro-enterprises form four features such as firm features, shareholder features, contract features and financial features by stepwise regression method. Innovation of this study is to construct credit evaluation model specially for small micro-enterprise which contained some important the financial indicators and non-financial indicators. The results show that the credit of small micro-enterprises has closely relationship with those four features. Those features of small micro-enterprises such as enterprises’ size (net asset and sales), profitability (return on asset, return on net assets) and solvency (net cash flow to current liabilities) have significantly positive affect on its credit level. However, some features such as shareholders holding ratio, the proportions of major shareholders and mortgage-backed approach have significantly negative affect on its credit level.
  Ya-Dan Hou , Zhi-Fu Guo , Ying Yi , Hui-Nan Li , Hao-Ge Li , Li-Jing Chen , Hui Ma , Li Zhang , Jing-Wei Lin and Ming Zhong
  We investigated the changes in the concentrations of protein, soluble sugar, proline, malondialdehyde and the antioxidative enzyme activities of superoxide dismutase, peroxidase, catalase of three wheat (Triticum aestivum L.) cultivars, DN1, Mironovskaya 808 (M808) and Chinese Spring (CS) under cold stress and exogenous abscisic acid treatment in the growth chamber. The results on physiological indices suggested that DN1 and M808 were higher than that of CS on cold resistance. We also found that abscisic acid had significant impacts on cold resistance, suggesting that low concentration of abscisic acid could improve cold acclimation of wheat under low temperature and the high concentration could inhibit cold acclimation. Therefore, physiological changes in wheat seedlings are useful to better understand chilling stress responses in plants which promise to improve cold resistance of crops at low temperatures.
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