RESUMO
This study aimed to characterize the chemical composition of a new sulfated polysaccharide from the red alga Gracilaria chouae and evaluate its activation effects on RAW264.7 macrophages. It showed that the obtained G. chouae polysaccharide (GCP-3A) was a sulfated acidic polysaccharide with a molecular weight of 11.87 kDa. GCP-3A was composed of xylose, galactose, glucose, and mannose with a molar ratio of 3.00:29.28:0.63:0.45, and it contained α,β-glycosidic linkages. Scanning electron microscopy (SEM) and a Congo red test showed that it was a heterogeneous polysaccharide with irregular interwoven sheets and rods, and did not have a triple-helix conformation. Furthermore, GCP-3A significantly promoted the proliferation of RAW264.7 macrophages and the secretion of nitric oxide (NO) in tests of 3-(4,5-dimethylthiahiazo-2-yl)-2,5-diphenytetrazoliumromide(MTT) and NO.
Assuntos
Gracilaria/química , Macrófagos , Peso Molecular , Polissacarídeos/farmacologia , Sulfatos/farmacologiaRESUMO
Elsholtiza Bodinieri Vaniot has the food and medicinal value. The whole plant contains aromatic oils, flavonoids, triterpenoids, phenolic constituents, β-carotene, vitamin C and inorganic elements, and is characterized by antibacterial, antioxidant, hypolipidemic and other kinds of activity. However, few researches are on the extraction method and activity of the effective ingredient of Elsholtiza Bodinieri Vaniot. This article reviewed the chemical constituents of Elsholtiza Bodinieri Vaniot, with a purpose to provide references for further study and development.