نتایج جستجو برای: rs stereoisomeric group
تعداد نتایج: 1004891 فیلتر نتایج به سال:
BACKGROUND The fermentation of dietary fiber to various organic acids is a beneficial function provided by the microbiota in the human large intestine. In particular, butyric acid contributes to host health by facilitating maintenance of epithelial integrity, regulating inflammation, and influencing gene expression in colonocytes. We sought to increase the concentration of butyrate in 20 health...
Background and Objective: In order to ethically supervise laboratory animal (LA) researches, various regulatory structures (RS) are developed in many countries. Our primary hypothesis was that these RS are not well developed in Iran, therefore, we aimed to propose the principles of developing these RS in our country, based on scientific principles and religious morals. Materials and Meth...
Background: Naturally extracted trans-(−)-kusunokinin from P. nigrum showed anticancer activities via binding and inhibition of CSF1R. However, the synthetic racemic mixtures trans-(−)- trans-(+)-kusunokinin (trans-(±)-kusunokinin) exhibited different effects on breast cancer cell lines. It was hypothesized that trans-(±)-kusunokinin bind to additional molecules, including AKR1B1. Previously, w...
Stereoisomers are molecules that are identical in atomic constitution and bonding, but differ in the three-dimensional arrangement of the atoms. For the purpose of this document, the stereoisomeric pairs of greatest interest are those with one or more asymmetric (chiral) centers whose enantiomers (individual stereoisomers) are mirror images. They have essentially identical physical (except for ...
An intramolecular Huisgen cycloaddition of an interconverting set of isomeric allylic azides with alkynes affords substituted triazoles in high yield. The stereoisomeric vinyl-substituted triazoloxazines formed depend on the rate of cycloaddition of the different allylic azide precursors when the reaction is carried out under thermal conditions. In contrast, dimerized macrocyclic products were ...
Antigenic and genetic heterogeneities exist within the two major antigenic groups of respiratory syncytial (RS) virus. We developed a polymerase chain reaction (PCR)-based assay that not only differentiates the two RS virus groups but allows distinctions within groups on the basis of changes in the nucleotide sequences, as revealed by restriction fragment analysis. In this assay, viral RNA serv...
Richter syndrome (RS) represents the development of diffuse large B-cell lymphoma in the context of chronic lymphocytic leukemia. The scarcity of biologic information about RS has hampered the identification of molecular predictors of RS outcome. We addressed this issue by performing a comprehensive molecular characterization of 86 pathologically proven RS. TP53 disruption (47.1%) and c-MYC abn...
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