Structural characterization and immunoregulatory activity of polysaccharides from Dendrobium officinale leaves

2021 ◽  
Author(s):  
Chunfei Zhong ◽  
Wenni Tian ◽  
Hongzhu Chen ◽  
Yunyun Yang ◽  
Yanan Xu ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Dendrobium Officinale

Purification and Structural Characterization of Dendrobium officinale Polysaccharides and Its Activities

2021 ◽  
Author(s):  
lixia wang ◽  
Chi-Yu Li ◽  
Chen Hu ◽  
Pi-sen Gong ◽  
Meng-zong Liu ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Dendrobium Officinale

Study on Dendrobium officinale O-acetyl-glucomannan (Dendronan®): Part I. Extraction, purification, and partial structural characterization

2014 ◽  
Vol 4 (1) ◽  
pp. 74-83 ◽  
Author(s):  
Xiaohui Xing ◽  
Steve W. Cui ◽  
Shaoping Nie ◽  
Glyn O. Phillips ◽  
H. Douglas Goff ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Dendrobium Officinale

Structural characterization and immunomodulatory activity of two novel polysaccharides derived from the stem of Dendrobium officinale Kimura et Migo

2019 ◽  
Vol 57 ◽  
pp. 121-134 ◽  
Author(s):  
Shengchang Tao ◽  
Zhouxi Lei ◽  
Kaiwei Huang ◽  
Yunrong Li ◽  
Zhiyao Ren ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Dendrobium Officinale ◽  
Immunomodulatory Activity

Structural characterization of a 2-O-acetylglucomannan from Dendrobium officinale stem

2004 ◽  
Vol 339 (13) ◽  
pp. 2219-2224 ◽  
Author(s):  
Yun-fen Hua ◽  
Ming Zhang ◽  
Cheng-xin Fu ◽  
Zhang-hui Chen ◽  
Gilbert Yuk Sing Chan
Keyword(s):  
Structural Characterization ◽  
Dendrobium Officinale

Intestinal immunomodulating activity and structural characterization of a new polysaccharide from stems of Dendrobium officinale

2016 ◽  
Vol 7 (6) ◽  
pp. 2789-2799 ◽  
Author(s):  
Song-Zi Xie ◽  
Bing Liu ◽  
Dan-Dan Zhang ◽  
Xue-Qiang Zha ◽  
Li-Hua Pan ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Structural Characterization ◽  
Isolation Procedure ◽  
Dendrobium Officinale ◽  
Low Molecular Weight ◽  
Immunomodulating Activity

A newly branched Dendrobium officinale polysaccharide (DOP-W3-b) with a high intestinal immunomodulating activity and a relatively low molecular weight was obtained through a bioactivity-guided sequential isolation procedure.

Structural characterization and hypoglycemic effect via stimulating glucagon-like peptide-1 secretion of two polysaccharides from Dendrobium officinale

2020 ◽  
Vol 241 ◽  
pp. 116326 ◽  
Author(s):  
Meng-Ting Kuang ◽  
Jin-Yu Li ◽  
Xiao-Bei Yang ◽  
Liu Yang ◽  
Jing-Yue Xu ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Hypoglycemic Effect ◽  
Dendrobium Officinale ◽  
Glucagon Like Peptide ◽  
Glucagon Like Peptide 1

Structural characterization and immunomodulating activity of polysaccharide from Dendrobium officinale

2016 ◽  
Vol 83 ◽  
pp. 34-41 ◽  
Author(s):  
Tao-Bin He ◽  
Yan-Ping Huang ◽  
Liu Yang ◽  
Ti-Ti Liu ◽  
Wan-Ying Gong ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Dendrobium Officinale ◽  
Immunomodulating Activity

Phase behavior of cationic and anionic surfactants at low concentrations

1992 ◽  
Vol 50 (1) ◽  
pp. 694-695
Author(s):  
E. Naranjo
Keyword(s):  
Phase Behavior ◽  
Structural Characterization ◽  
Dynamic Systems ◽  
Anionic Surfactants ◽  
Intermolecular Forces ◽  
Stable Form ◽  
Surfactant Mixtures ◽  
Low Concentrations ◽  
Cationic And Anionic Surfactants ◽  
General Method

Equilibrium vesicles, those which are the stable form of aggregation and form spontaneously on mixing surfactant with water, have never been demonstrated in single component bilayers and only rarely in lipid or surfactant mixtures. Designing a simple and general method for producing spontaneous and stable vesicles depends on a better understanding of the thermodynamics of aggregation, the interplay of intermolecular forces in surfactants, and an efficient way of doing structural characterization in dynamic systems.

New ultrastructural findings about Borrelia burgdorferi by cryofixation, negative staining, thin sectioning and scanning techniques

1990 ◽  
Vol 48 (3) ◽  
pp. 582-583
Author(s):  
S. F. Hayes ◽  
M. D. Corwin ◽  
T. G. Schwan ◽  
D. W. Dorward ◽  
W. Burgdorfer
Keyword(s):  
Lyme Disease ◽  
Borrelia Burgdorferi ◽  
Structural Characterization ◽  
Negative Staining ◽  
Low Speed ◽  
Thin Sectioning ◽  
Ultrastructural Findings

Characterization of Borrelia burgdorferi strains by means of negative staining EM has become an integral part of many studies related to the biology of the Lyme disease organism. However, relying solely upon negative staining to compare new isolates with prototype B31 or other borreliae is often unsatisfactory. To obtain more satisfactory results, we have relied upon a correlative approach encompassing a variety EM techniques, i.e., scanning for topographical features and cryotomy, negative staining and thin sectioning to provide a more complete structural characterization of B. burgdorferi.For characterization, isolates of B. burgdorferi were cultured in BSK II media from which they were removed by low speed centrifugation. The sedimented borrelia were carefully resuspended in stabilizing buffer so as to preserve their features for scanning and negative staining. Alternatively, others were prepared for conventional thin sectioning and for cryotomy using modified procedures. For thin sectioning, the fixative described by Ito, et al.

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