نتایج جستجو برای: highly sulfated cyclodextrins

تعداد نتایج: 497040  

Journal: :Molecules 2018
Rita Csepregi Beáta Lemli Sándor Kunsági-Máté Lajos Szente Tamás Kőszegi Balázs Németi Miklós Poór

Resazurin (or Alamar Blue) is a poorly fluorescent dye. During the cellular reduction of resazurin, its highly fluorescent product resorufin is formed. Resazurin assay is a commonly applied method to investigate viability of bacterial and mammalian cells. In this study, the interaction of resazurin and resorufin with β-cyclodextrins was investigated employing spectroscopic and molecular modelin...

Journal: :International journal of pharmaceutics 2015
Tammy Savage John Mitchell Vivek Trivedi Stephen Wicks Laura J Waters

Batch synthesis of sulphobutyl ether β-cyclodextrin (also known as SBE-β-CD or SBECD) is a process effectively divided into three main stages, i.e. initial reagent dissolution, a sulphoalkylation reaction and final reaction quenching. This reaction is followed by downstream processing and purification, and ultimate isolation of the solid SBECD material. However, a feature associated with using ...

2014
Lorena Almagro Pablo Carbonell-Bejerano Sarai Belchí-Navarro Roque Bru José M. Martínez-Zapater Diego Lijavetzky María A. Pedreño Guangxiao Yang

The high effectiveness of cyclic oligosaccharides like cyclodextrins in the production of trans-resveratrol in Vitis vinifera cell cultures is enhanced in the presence of methyl jasmonate. In order to dissect the basis of the interactions among the elicitation responses triggered by these two compounds, a transcriptional analysis of grapevine cell cultures treated with cyclodextrins and methyl ...

2017
Marilena Vlachou Marianna Papamichael Angeliki Siamidi Irene Fragouli Pandelis A. Afroudakis Rodanthi Kompogennitaki Yannis Dotsikas

A series of hydrophilic matrix tablets was prepared and tested with respect to their ability to release the hormone melatonin in a controlled manner, in order to alleviate sleep onset and sleep maintenance dysfunctions. Besides the active ingredient, the tablets were comprised of combinations of the following: HPMC K 15M, low viscosity sodium alginate, microcrystalline cellulose (Avicel PH 102)...

Journal: :The Journal of biological chemistry 2001
D Leali M Belleri C Urbinati D Coltrini P Oreste G Zoppetti D Ribatti M Rusnati M Presta

The angiogenic basic fibroblast growth factor (FGF2) interacts with tyrosine kinase receptors (FGFRs) and heparan sulfate proteoglycans (HSPGs) in endothelial cells. Here, we report the FGF2 antagonist and antiangiogenic activity of novel sulfated derivatives of the Escherichia coli K5 polysaccharide. K5 polysaccharide was chemically sulfated in N- and/or O-position after N-deacetylation. O-Sul...

Journal: :Tetrahedron letters 2007
Arjun Raghuraman Muhammad Riaz Michael Hindle Umesh R Desai

Sulfation of multiply hydroxylated small organic molecules is fraught with problems of poor yield, multitude of products and long reaction times. We have developed a rapid microwave-based method for synthesis of highly sulfated small organic molecules, which affords the per-sulfated product in moderate to excellent yields and high purity. The method is expected to be of value in the discovery o...

2017
Takeshi Yoshimura Akiko Hayashi Mai Handa-Narumi Hirokazu Yagi Nobuhiko Ohno Takako Koike Yoshihide Yamaguchi Kenji Uchimura Kenji Kadomatsu Jan Sedzik Kunio Kitamura Koichi Kato Bruce D. Trapp Hiroko Baba Kazuhiro Ikenaka

Highly specialized glial cells wrap axons with a multilayered myelin membrane in vertebrates. Myelin serves essential roles in the functioning of the nervous system. Axonal degeneration is the major cause of permanent neurological disability in primary myelin diseases. Many glycoproteins have been identified in myelin, and a lack of one myelin glycoprotein results in abnormal myelin structures ...

Journal: :Organic & biomolecular chemistry 2016
Xiaoli Tan Yuguang Song Huiqiang Liu Qinwen Zhong Antal Rockenbauer Frederick A Villamena Jay L Zweier Yangping Liu

Supramolecular host-guest interactions of trityl-nitroxide (TN) biradicals CT02-VT, CT02-AT and CT02-GT with methyl-β-cyclodextrin (M-β-CD), hydroxypropyl-β-cyclodextrin (H-β-CD) and γ-cyclodextrin (γ-CD) were investigated by EPR spectroscopy. In the presence of cyclodextrins (i.e., γ-CD, M-β-CD and H-β-CD), host-guest complexes of CT02-VT are formed where the nitroxide and linker parts possibl...

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