نتایج جستجو برای: polysaccharides

تعداد نتایج: 22965  

B. Ohadi E. Azarnoosh M. Vazirian* Z. Yasrebinezhad

Background and objectives: Nowadays cancer is one of the most important concerns of the society. The adverse effects of common therapeutics and resistance of some cancerous cells to treatment have brought the necessity of new approaches towards the issue. Polysaccharides are a group of carbohydrates found in natural sources. In the present article, our goal was to show the posi...

Journal: :hepatitis monthly 0
moataza h. omran microbial biotechnology department, genetic engineering division, national research centre, dokki cairo, egypt; microbial biotechnology department, genetic engineering division, national research centre, dokki cairo, egypt. tel: +20-1223735450, fax: +20-233370931 wael nabil microbial biotechnology department, genetic engineering division, national research centre, dokki cairo, egypt samar s. youssef microbial biotechnology department, genetic engineering division, national research centre, dokki cairo, egypt mervat el-sayed chemistry department, faculty of science, cairo university, dokki cairo, egypt mostafa k. el awady microbial biotechnology department, genetic engineering division, national research centre, dokki cairo, egypt

results the present work figured out that the heterogeneity of the quasispecies of our local strains 4a was high showing up 15% diversity. this study also showed four glycosylation sites that play an important role in the entry of the virus and protein folding. besides, different epitpoes were identified in different regions of the e1 and e2 domains; a finding which would help in determining th...

2017
Chunmei He Kunlin Wu Jianxia Zhang Xuncheng Liu Songjun Zeng Zhenming Yu Xinghua Zhang Jaime A. Teixeira da Silva Rufang Deng Jianwen Tan Jianping Luo Jun Duan

Dendrobium officinale is a precious traditional Chinese medicinal plant because of its abundant polysaccharides found in stems. We determined the composition of water-soluble polysaccharides and starch content in D. officinale stems. The extracted water-soluble polysaccharide content was as high as 35% (w/w). Analysis of the composition of monosaccharides showed that the water-soluble polysacch...

2012
Fatemeh Nejatzadeh-Barandozi Sattar Tahmasebi Enferadi

BACKGROUND This experiment was conducted to evaluate the effect of different amounts of fertilizers on the polysaccharides of Aloe vera plant. There were four different treatments, viz. T1 = 150% N, T2 = 150% P, T3 = 150% K, and T4 = 150% NPK (50% N + 50% P + 50% K) soil. Crude water-soluble polysaccharides were isolated from the gel juice, skin juice, and flowers of A. vera planted in these so...

Journal: :progress in biological sciences 2013
faezeh ghanati maryam dahajipour heidarabadi

effects of excess concentrations of boron on major cell wall components of tobacco cells(nicotiana tabacum l. cv. burley 21) were studied. pectin, xyloglucan, hydroxyproline-richglycoproteins (extensin), and arabinogalactan proteins were characterized. results showedthat increased boron supply resulted in significant decrease in cell and cell wall dry weights.also, high concentrations of boron ...

2013
Jens Magnus Bernth-Jensen Ole Schmeltz Søgaard

Polysaccharide responsiveness is tested by measuring antibody responses to polysaccharide vaccines to diagnose for humoral immunodeficiency. A common assumption is that this responsiveness is biased by any previous exposure to the polysaccharides in the form of protein-coupled polysaccharide vaccines, such as those used in many childhood vaccination programmes. To examine this assumption, we in...

2017
TRIDEEP SAIKIA JONAB ALI BISWAJIT DAS Girijananda Chowdhury

Objective: The main objective was to isolate and characterise a naturally obtain polysaccharides which have the property to formulate sustain release product. Methods: Tamarind Seed Polysaccharides (TSP) was isolated from seed of Tamarindus indica by crushed the seed into powder and boiled with water at 45 °C to extract the polysaccharides. After boiling for 12 h the supernatant liquids were co...

2012
Hui-Yu Huang Mallikarjuna Korivi Ying-Ying Chaing Ting-Yi Chien Ying-Chieh Tsai

Pleurotus tuber-regium contains polysaccharides that are responsible for pharmacological actions, and medicinal effects of these polysaccharides have not yet been studied in diabetic rats. We examined the antidiabetic, antihyperlipidemic, and antioxidant properties of P. tuber-regium polysaccharides in experimental diabetic rats. Forty rats were equally assigned as diabetic high-fat (DHF) diet ...

Journal: :International immunology 2007
Wing Keung Chan Helen Ka Wai Law Zhi-Bin Lin Yu Lung Lau Godfrey Chi-Fung Chan

Polysaccharides derived from fungi and plants have been increasingly used as dietary supplement with therapeutic intention for cancer. However, whether these polysaccharides from different sources and structures can elicit similar immunological effects remain unknown. This study aims to investigate and compare the effects of selected groups of purified and crude polysaccharides on human dendrit...

2017
Qian Zhang Renhuai Cong Minghua Hu Yanhong Zhu Xiangliang Yang

Fungal polysaccharides display a variety of important biological activities, including anti-inflammatory, antitumor, and immune-stimulating activities. The aim of present study was to investigate the immunomodulatory effect of fungal polysaccharides on cyclophosphamide-induced immunosuppression in mice. Mice were pretreated orally with lentinan, tremellan, pachymaran, or a mixture of the three,...

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