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Articles by Yan Gao
Total Records ( 2 ) for Yan Gao
  Yan Gao , Linfan Li and Yanmei Yang
  Twenty first century is age of digital, network and information globalization, Rapid development of Internet and wireless communication produced unprecedented influence on the world. Popularization of smart phone and PAD supply new technical support to electronic commerce, there for, mobile e-commerce has been improved. In this article, we review current situation of mobile commerce and the role of smart phone in mobile commerce. Then we figure out the deficiency of application of smart phone in mobile commerce at present. At last, we will give some suggestions for development of smart phone for mobile commerce.
  Ping Li , Shyam S. Chaurasia , Yan Gao , Aprell L. Carr , P. Michael Iuvone and Lei Li
  In zebrafish, the expression of long-wavelength cone (LC) opsin mRNA fluctuated rhythmically between the day and night. In a 24-h period, expression was high in the afternoon and low in the early morning. This pattern of fluctuation persisted in zebrafish that were kept in constant darkness, suggesting an involvement of circadian clocks. Functional expression of Clock, a circadian clock gene that contributes to the central circadian pacemaker, was found to play an important role in maintaining the circadian rhythms of LC opsin mRNA expression. In zebrafish embryos, in which the translation of Clock was inhibited by anti-Clock morpholinos, the circadian rhythms of LC opsin mRNA expression diminished. CLOCK may regulate the circadian rhythms of LC opsin mRNA expression via cyclic adenosine monophosphate (cAMP)-dependent signaling pathways. In control retinas, the concentration of cAMP was high in the early morning and low in the remainder of the day and night. Inhibition of Clock translation abolished the fluctuation in the concentration of cAMP, thereby diminishing the circadian rhythms of opsin mRNA expression. Transient increase of cAMP concentrations in the early morning (i.e. by treating the embryos with 8-bromo-cAMP) restored the circadian rhythms of LC opsin mRNA expression in morpholino-treated embryos. Together, the data suggest that Clock plays important roles in regulating the circadian rhythms in photoreceptor cells.
 
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