Macrophage immunomodulatory activity of polysaccharides isolated from Opuntia polyacantha

Immunomodulatory activity of acidic polysaccharides isolated from Tanacetum vulgare L.

Tanacetum vulgare L. (Tansy) has been extensively used in folk medicine for treatment of a variety of medical disorders. In the present study, we isolated and purified four acidic polysaccharide fractions (designated T-I to T-IV) from Tansy florets by the sequential use of hot-water extraction, ethanol precipitation, ultra-filtration, anion-exchange, and size-exclusion chromatography. The avera...

Immunomodulatory activity of polysaccharides isolated from Clerodendrum splendens: Beneficial effects in experimental autoimmune encephalomyelitis

BACKGROUND Extracts of leaves from Clerodendrum have been used for centuries to treat a variety of medicinal problems in tropical Africa. However, little is known about the high-molecular weight active components conferring therapeutic properties to these extracts. METHODS Polysaccharides from the leaves of Clerodendrum splendens were extracted and fractionated by ion exchange and size-exclus...

Immunomodulatory activity and partial characterisation of polysaccharides from Momordica charantia.

Momordica charantia Linn. is used as an edible and medicinal vegetable in sub-tropical areas. Until now, studies on its composition and related activities have been confined to compounds of low molecular mass, and no data have been reported concerning the plant's polysaccharides. In this work, a crude polysaccharide of M. charantia (MCP) fruit was isolated by hot water extraction and then purif...

Immunostimulatory activity of polysaccharides isolated from Caulerpa lentillifera on macrophage cells.

Polysaccharides were extracted from Caulerpa lentillifera by treating with water and then purified by size-exclusion chromatography. The purified polysaccharides, termed SP1, were found to be sulfated xylogalactans with a molecular mass of more than 100 kDa. Adding SP1 to murine macrophage RAW 264.7 cells increased the production of nitric oxide (NO) in a dose-dependent manner. NO was found by ...

analysis of immunomodulatory activity of polysaccharides extracted from the brown alga cystoseira myrica