Gui-yun Zhang

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Vitamin E comprises a group of eight lipid soluble antioxidant compounds that are an essential part of the human diet. The α-isomers of both tocopherol and tocotrienol are generally considered to have the highest antioxidant activities. γ-tocopherol methyltransferase (γ-TMT) catalyzes the final step in vitamin E biosynthesis, the methylation of γ- and(More)
OBJECTIVE This study was to compare the performance of three HIV antibody confirmatory assay kits in confirming early HIV infection. METHODS Five HIV antibody-positive plasma specimens were ten-fold serially diluted and then detected by ELISA. The above diluted specimens were detected with the following three HIV antibody confirmatory assay kits to(More)
Ascorbic acid (AsA) is the most abundant water-soluble antioxidant in plants, and it plays a crucial role in plant growth, development and abiotic stress tolerance. In the present study, six key Arabidopsis or rapeseed genes involved in AsA biosynthesis were constitutively overexpressed in an elite Japonica rice cultivar. These genes encoded the GDP-mannose(More)
Although hormonal influences, inflammation, trauma, sinus thrombosis, venous hypertension, and congenital origin have been proposed as sources of dural arteriovenous fistulas (DAVFs) in cavernous and sigmoid sinuses, the etiology of these lesions remains controversial. We present a case with a cavernous sinus DAVF developed from viral meningitis which has(More)
To enable intelligent agents to effectively deal with emotion,the formal description of emotional agent based on the LOBA logic and axioms derived are described. The model provide theoretical foundation for the construction of emotional rule base that supports emotion reasoning, also reflects the agent producing better emotional response and making(More)
OBJECTIVES Chronic cerebral hypoperfusion (CCH) leads to neurodegeneration and cognitive impairment. Ubiquitinated protein aggregates are commonly present in neurodegenerative disorders and are believed to cause neuronal degeneration. Here, we investigated the effects of N-stearoyl-L-tyrosine (NSTyr) on the hippocampal ubiquitin-proteasome system (UPS) in(More)
OBJECTIVE To study the human immunodeficiency virus (HIV) status through heterosexual transmission in Yining city and to provide information on effective intervention measures. METHODS Cohort of HIV sero-discordant couples identified from 1997 to 2000 was formed. Proportional risk model was used to analyze the time of HIV sero-conversion and the related(More)
Starch-debranching enzymes (DBEs) are key enzymes involved in starch metabolism in cereals, having a dual function, in both starch synthesis and degradation. However, their precise roles in this pathway, particularly their expression profiles, remain unclear. In the present study, we performed a quantitative real-time PCR (Q-PCR) analysis of the expression(More)
BACKGROUND Atherosclerosis is the most common cause of ischemic stroke. Until now, there has been no ideal animal model for studying the hemodynamic ischemia caused by atherosclerosis in posterior circulation. OBJECTIVE This study was conducted to establish a cerebral ischemic model in an atherosclerotic rabbit by subclavian artery (SA) ligation or(More)