منابع مشابه
Helicobacter pylori does not require Lewis X or Lewis Y expression to colonize C3H/HeJ mice.
Helicobacter pylori strains frequently express Lewis X (Le(x)) and/or Le(y) on their cell surfaces as constituents of the O antigens of their lipopolysaccharide molecules. To assess the effect of Le(x) and Le(y) expression on the ability of H. pylori to colonize the mouse stomach and to adhere to epithelial cells, isogenic mutants were created in which fucT1 alone or fucT1 and fucT2, which enco...
متن کاملExpression of Lewis(x), sialylated Lewis(x), Lewis(a), and sialylated Lewis(a) antigens in human lung carcinoma.
One hundred and five cases of various human lung neoplasms were studied immunohistochemically using monoclonal antibodies recognizing the antigens, Le(x), sialylated Le(x) (SLEX), Le(a), and sialylated Le(a) (SLEA). Of the 92 lung cancers examined for antigen expression SLEX was detected in 57% (52 cases), Le(x) in 42% (39), SLEA in 36% (33), and Le(a) in 23% (21). None of these antigens were e...
متن کاملLewis Acid and/or Lewis Base catalyzed [3+2] cycloaddition reaction: Synthesis of pyrazoles and pyrazolines
Abstract: A facile, 1,3-dipolar cycloaddition of ethyl diazoacetate (EDA) with various activated olefins including Baylis-Hillman adducts, activated and simple alkynes to afford 3,5-disubstituted pyrazolines and pyrazoles respectively in moderate to good yields, in high regioselective manner in the presence of Indium chloride and/or DABCO is reported. All the reactions were carried out under no...
متن کاملLewis Wolpert
Lewis Wolpert is Professor of Biology as Applied to Medicine at University College London. He originally trained as a civil engineer in South Africa, but changed to research in cell and developmental biology in 1955. His main contributions are related to morphogenesis and his concept of positional information. He was for four years Chairman of the Committee for the Public Understanding of Scien...
متن کاملKieran Lewis
©AsiaPacific MediaEducator Issue No.11 July Dec. 2001 T paper discusses some fundamental assumptions about pluralism in the Australian print media. Pluralism, the number of print media outlets available to the public, and known as structural diversity, can be considered as one of two elements of media diversity. The other is the variety of views presented by those outlets, known as content dive...
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ژورنال
عنوان ژورنال: Modern Philology
سال: 1917
ISSN: 0026-8232,1545-6951
DOI: 10.1086/387079