CN117343206A - Preparation method of fucoidin and application of fucoidin in preparation of anti-inflammatory drugs - Google Patents
Preparation method of fucoidin and application of fucoidin in preparation of anti-inflammatory drugs Download PDFInfo
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- CN117343206A CN117343206A CN202311311426.4A CN202311311426A CN117343206A CN 117343206 A CN117343206 A CN 117343206A CN 202311311426 A CN202311311426 A CN 202311311426A CN 117343206 A CN117343206 A CN 117343206A
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- 229940124599 anti-inflammatory drug Drugs 0.000 title claims abstract description 8
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000003110 anti-inflammatory effect Effects 0.000 claims abstract description 13
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Biochemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Sustainable Development (AREA)
- Epidemiology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention belongs to the technical field of biochemistry, and particularly discloses a preparation method of fucoidin and application of the fucoidin in preparation of anti-inflammatory drugs. The preparation method comprises the following steps: pulverizing Undaria pinnatifida, extracting with water, filtering, adding ethanol into the filtrate, standing, filtering again, adding water into the precipitate, and lyophilizing to obtain Porphyra haitanensis crude polysaccharide. The fucoidin prepared by the invention is a functional polysaccharide, and can reduce the expression of Integrin alpha 4 beta 7 (Intergrin alpha 4 beta 7) and mucosa address adhesion molecule 1 (MAdCAM-1) in the Petri's junction. Meanwhile, the anti-inflammatory agent also has the effects of reducing the levels of pro-inflammatory factors IFN-gamma, TNF-alpha, IL-1 beta and IL-6 and improving the levels of anti-inflammatory factors IL-10 and TGF-beta.
Description
Technical Field
The invention relates to the technical field of biochemistry, in particular to a preparation method of fucoidin and application of the fucoidin in preparation of anti-inflammatory drugs.
Background
Peyer's patch is a lymphoid structure located below the intestinal mucosa and is formed by the aggregation of B cells. It is an important component of the intestinal mucosal immune system, mainly involved in regulating the intestinal immune response and maintaining mucosal barrier function. B cells in the peyer's patch can differentiate into transformation center B cells, helper B cells, plasma cells, and the like.
When the mucous membrane of the small intestine is infected or otherwise irritated, the peyer's patch becomes one of the important sites of inflammatory response. Immune cells are activated in the peyer's patch, beginning to release inflammatory factors, such as cytokines and chemokines, to attract more immune cells to the site of inflammation. These immune cells can clear pathogens, repair damaged tissue, and regulate the process of immune responses.
Polysaccharides can regulate the function of the immune system, including promoting activation of immune cells and enhancing immune responses. There are a variety of immune cells in the peyer's patch, such as lymphocytes, dendritic cells, etc., which are critical for the recognition and protection of invading pathogens. Part of the polysaccharide component is thought to stimulate immune cells in the peyer's patch, enhancing their immune function and thus increasing the defenses against pathogens.
Fucoidan is a natural polysaccharide compound extracted from fucus. Fucoidan, a brown algae plant that is mainly present in the ocean, is considered as a bioactive ingredient. Its chemical structure is composed of various sugar molecules, such as glucose, mannose, galactose, glucosamine, etc., and usually contains a sulfate group. Fucoidan has an α -1, 3-backbone or is composed of repeating units consisting of α -1,3 linked fucose and α -1,4 linked fucose disaccharides, branching is linked at the C2 position and sulfation occurs mainly at the O-2 position.
Fucoidan has been attracting attention due to its unique chemical composition and biological activity. Some researches show that fucoidan has various biological activities such as antioxidation, anti-tumor, antivirus and the like, but the influence of fucoidan on immune homing effect in peyer's patch and the application of fucoidan in anti-inflammatory have not been reported yet.
Disclosure of Invention
The invention aims to provide a preparation method of fucoidin and application of the fucoidin in preparation of anti-inflammatory drugs, which can reduce the levels of pro-inflammatory factors IFN-gamma, TNF-alpha, IL-1 beta and IL-6 and improve the levels of anti-inflammatory factors IL-10 and TGF-beta, and has anti-inflammatory effect.
The technical aim of the invention is realized by the following technical scheme:
a method for preparing fucoidin, comprising the following steps:
s1, crushing undaria pinnatifida by using a crusher, and keeping undaria pinnatifida powder for later use;
s2, weighing undaria pinnatifida powder in a beaker, adding distilled water, uniformly stirring with a glass rod, putting a rotor into the beaker, putting the beaker into a constant-temperature magnetic stirring pot, leaching with hot water, extracting by an ultrasonic auxiliary extraction technology, and centrifuging an extracting solution to obtain a supernatant;
s3, placing the supernatant into a rotary steaming instrument to obtain concentrated solution, mixing 3% CaCl2.2H2O with the concentrated solution, placing the mixture in a refrigerator for standing overnight to enable the alginate to be completely precipitated, centrifuging to remove the alginate precipitate in the crude polysaccharide, and taking the supernatant;
s4, mixing the supernatant with absolute ethyl alcohol, standing for precipitation, and centrifuging to obtain a precipitate;
s5, washing the precipitate with absolute ethyl alcohol for 2 times, and then adding water until the precipitate is dissolved to obtain a solution;
s6, performing rotary evaporation on the dissolution liquid to obtain concentrated liquid;
s7, mixing the concentrated solution with a sevage reagent, oscillating by a vortex meter, standing for layering, and taking supernatant;
and S8, placing the supernatant in a refrigerator for dialysis, and drying the supernatant by using a vacuum freeze dryer to obtain the fucoidin.
Further preferably, in step S2, the mass ratio of the undaria pinnatifida to the water is 1:30; the hot water leaching temperature is 80 ℃ and the time is 3.5h; the ultrasonic auxiliary extraction time is 30min; the centrifugal rotating speed is 4000r/min, and the centrifugal time is 10min.
Further preferably, in the step S3, the volume of the concentrated solution is 250mL, the ratio of CaCl2.2H2O to the concentrated solution is 1:1, and the standing overnight temperature is 4 ℃; the centrifugal rotating speed is 3000r/min, and the time is 20min.
Further preferably, the volume ratio of the supernatant to the absolute ethanol in the step S4 is 1:4, and the final concentration is 80%; the sedimentation time is 12h, the centrifugal rotating speed is 4000r/min, and the centrifugal time is 10min.
Further preferably, in the step S7, the volume ratio of the concentrated solution to the sevage reagent is 6:1, and the preparation ratio of the sevage reagent is as follows: chloroform: n-butanol=4:1=v: V, the vortexing time was 20min, and the layering was aqueous layer-denatured protein layer-organic layer with liquid from top to bottom.
It is further preferred that the dialysis in step S8 is performed using a dialysis membrane having a molecular weight cut-off of 10-15kDa, the dialysis temperature in a refrigerator is 4 ℃ and the time is 24 hours, and the number of distilled water changes during the dialysis is 2, wherein the first change is after 4 hours and the second change is after 8 hours.
The invention also provides an application of the fucoidin in preparing anti-inflammatory drugs.
Further preferably, the anti-inflammatory includes anti-inflammatory bowel disease.
Further preferred, the anti-inflammatory bowel disease comprises decreasing the expression of integrin α4β7 and mucoadhesive molecule 1 in the peyer's patch and modulating inflammatory factor levels.
Further preferred, the inflammatory factors include transforming growth factor-beta, interferon-gamma, tumor necrosis factor-alpha, interleukin-1 beta, interleukin-10, and interleukin-6.
Compared with the prior art, the invention has the following beneficial effects:
the fucoidin prepared by the invention is a functional polysaccharide, can regulate the immune homing effect in the Petri junction, and reduces the expression of integrin alpha 4 beta 7 and mucosa address adhesion molecule 1 in the Petri junction. Meanwhile, the anti-inflammatory agent also has the effects of reducing the levels of pro-inflammatory factors IFN-gamma, TNF-alpha, IL-1 beta and IL-6 and improving the levels of anti-inflammatory factors IL-10 and TGF-beta. Can provide theoretical basis for protecting and repairing the damage of fucoidin in intestinal barrier.
Drawings
FIG. 1 is a graph showing the effect of ELISA on the levels of inflammatory factors in mice with DSS-induced colon inflammation;
FIG. 2 is a schematic representation of the interaction of Intigrin α4β7 and MAdCAM-1 in the Petri junction to promote the directional migration and colonization of B cells in mucosal tissue;
FIG. 3 is a graph showing the effect of fucoidan on expression of Intigrin α4β7 and MAdCAM-1 in Petri knots.
Detailed Description
The present invention will be described in further detail with reference to examples for better understanding of the technical aspects of the present invention by those skilled in the art. It will be appreciated by those skilled in the art that the following examples are illustrative of the present invention and should not be construed as limiting the scope of the invention.
Example 1
Example 1 is the preparation of fucoidan comprising the steps of:
s1, drying undaria pinnatifida and then crushing;
s2, placing the undaria pinnatifida powder prepared in the step S1 into a 1L beaker, adding 30 times of distilled water, uniformly stirring by using a glass rod, placing a rotor into the beaker, placing the beaker into a constant-temperature magnetic stirring pot, and leaching by using 80 ℃ hot water for 3.5h. Extracting with ultrasonic auxiliary extraction technology for 30min, centrifuging the extractive solution at 4000rpm for 10min to obtain supernatant;
s3, placing the supernatant obtained in the step S2 into a rotary steaming instrument for concentration to 250mL, mixing 3% CaCl2.2H2O with the concentrated solution according to the ratio of 1:1, placing the mixture in a refrigerator at the temperature of 4 ℃ for standing overnight, and removing alginate precipitate in crude polysaccharide to obtain supernatant;
s4, mixing the supernatant obtained in the step S3 with absolute ethyl alcohol according to a volume ratio of 1:4, precipitating for 12 hours, and centrifuging for 10 minutes at 4000rpm to obtain a precipitate;
s5, washing the precipitate prepared in the step S4 with absolute ethyl alcohol for 2 times, and adding water until the precipitate is dissolved to obtain a dissolving solution;
s6, performing rotary evaporation on the obtained solution to obtain concentrated solution;
s7, mixing the concentrated solution and sevage reagent (chloroform: n-butanol=4:1=V: V) in a ratio of 6:1, oscillating for 20min by a vortex meter, standing for layering, taking supernatant from top to bottom, wherein the liquid is a water layer, a denatured protein layer and an organic layer;
s8, placing the concentrated solution prepared in the step S7 in a dialysis bag with the specification of 10-15kDa, dialyzing for 24 hours in a refrigerator at the temperature of 4 ℃, and drying the concentrated solution by using a vacuum freeze dryer to obtain the fucoidin of the embodiment.
Example 2
Example 2 is an ELISA assay to examine the effect of fucoidan on inflammatory factor levels in DSS-induced inflammatory bowel disease mice.
Using the fucoidan prepared in example 1, DSS-induced inflammatory bowel disease mice were assayed for inflammatory factor levels, one of which was a blank control group (NC, n=5) and the other was a DSS-induced inflammatory bowel disease model group (IBD, n=15). NC mice received only water as treatment, whereas the inflammatory bowel disease model was induced with 3% dss (w/v) in drinking water.
Inflammatory bowel disease model groups (IBD) were randomized into three groups (n=5) 7 days after DSS induction. These groups included model group (DSS), fucan-treated model group (dss+fuc), and fructo-oligosaccharide-treated model group (dss+fos). The dss+fuc group and the dss+fuc group were given 100mg/kg doses of FUC and FOS, respectively, for 7 consecutive days, while the DSS group was given a conventional diet similar to that of the NC group. Mice were sacrificed on day 22.
To detect the level of inflammatory factors, we anesthetized mice and removed the eyeballs for blood collection. After allowing the blood to coagulate for 30min at room temperature, it was centrifuged (4 ℃,3000rpm,15 min) and the supernatant in the centrifuge tube was collected. The levels of inflammatory factors TNF-alpha, IFN-gamma, IL-1 beta, IL-6, IL-10 and TGF-beta were measured separately using ELISA kits, all reagents and gradient diluted standards were prepared, and 300. Mu.L of 1 Xwash solution was added to an ELISA plate and allowed to stand for 30 seconds. 100. Mu.L of gradient diluted standard was added to the standard wells, 100. Mu.L of standard diluent was added to the blank wells, and 90. Mu.L of 1 Xdetection buffer and 10. Mu.L of sample were added to the sample wells. 50 μl of the corresponding detection antibody diluted 1:100 was added to each well, the membrane was sealed, incubated for 1.5 hours at room temperature, and washed 6 times. 100. Mu.L of 1:100 diluted horseradish peroxidase-labeled streptavidin was added to each well, membrane-sealed, incubated at room temperature for 45 minutes, washed 6 times, then 100. Mu.L of chromogenic substrate was added to each well, incubated at room temperature for 30 minutes in the absence of light, and 100. Mu.L of stop solution was added. The OD value was measured at a wavelength of 450nm using a microplate reader, with 570nm as the reference wavelength.
FIG. 1 is a graph showing the effect of fucoidan on the levels of inflammatory factors in mice with DSS-induced colon inflammation, wherein the abscissa NC, DSS, FUC, FOS is the blank, model, fucoidan-treated, and fructooligosaccharides-treated groups, respectively; the ordinate indicates the concentration of inflammatory factor (pg/ml). As can be seen from fig. 1, in the FUC experimental group, under the repair effect of fucoidan, the levels of IL-10 and TGF- β inflammatory factors secreted by the DSS-induced colon inflammatory mice are significantly improved compared with those of the DSS group, even higher than that of the blank control group (NC), and therefore fucoidan can effectively promote the increase of the levels of anti-inflammatory factors in vivo. Under the restoration effect of fucoidan, the levels of IFN-gamma, TNF-alpha, IL-6 and IL-1 beta inflammatory factors secreted by the DSS-induced colon inflammatory mice in the FUC experimental group are obviously reduced compared with those of the DSS group, even the levels of inflammatory factors in the control group are equal to those of the control group, so that the fucoidan can effectively reduce the levels of pro-inflammatory factors in the colon inflammatory mice.
Example 3
Example 3 determination of the Effect of fucoidan on the immune homing effect in Petri's junction by immunohistochemical method
As shown in FIG. 2, integrin α4β7 is a cell surface receptor capable of binding to the adhesion molecule MAdCAM-1. MAdCAM-1 is widely expressed on the endothelial cell surface of mucosal tissue. When the intersgrinα4β7 on the surface of B cells binds to MAdCAM-1, it promotes directional migration and colonization of B cells in mucosal tissue. Through the interaction of Intigrinα4β7 and MAdCAM-1, B cells can be selectively localized in the intestinal mucosa, which is important for secretory immunoglobulin A to maintain mucosal immune balance. The interaction of inters α4β7 and MAdCAM-1 is also involved in regulating B-cell immune responses in mucosal tissues, including inflammatory regulatory functions. During the development of inflammatory bowel disease, inflammatory signals may drive the production of inflammatory cytokines and chemokines by mucosal tissues, such as: IL6, IL-10, TGF-beta, etc., which can increase the expression of Intigrin alpha 4 beta 7 and MAdCAM-1.
Using the DSS-induced inflammatory bowel disease mouse model of example 2, the mice were sacrificed and dissected. The Petri knots were isolated from the small intestine, fixed with 4% paraformaldehyde for 24 hours, and then embedded in paraffin to make sections. The sections were immersed in two varying xylenes for 15 minutes each. The sections were soaked in 100%, 95%, 85% and 70% ethanol for 5 minutes, respectively. Prepared with water, 3% h2o2, and the sections were placed in solution and incubated for 20min at room temperature. The tissue was blocked by dropping 10% goat serum, incubated at 37℃for 30min, and then incubated with antibodies Intigrin. Alpha.4β7 (1:200,Santa Cruz,United States) and MAdCAM-1 (1:400,Santa Cruz,United States) at 37℃for 2 hours, respectively. Slides were washed with PBST and incubated with HRP-labeled secondary antibody. After rinsing with PBST, the sections were incubated with DAB (3, 30-diaminobenzidine) for visualization. DAB working solution is dripped on the tissue, the glass slide is placed under a microscope for observation, and the DAB chromogenic solution on the tissue is rinsed with water when specific brown expression occurs. Subsequently, the slides were washed in tap water, stained with harris hematoxylin, dehydrated with ethanol, coverslips were covered on the tissue, and air dried.
As shown in fig. 3, the expression of DSS group intelgrinα4β7 and MAdCAM-1 was significantly increased (p < 0.5) compared to the blank and experimental groups, and both were higher than the experimental group. It is shown that fucoidin can reduce the expression of Intigrin alpha 4 beta 7 and MAdCAM-1, slow down the immune response of inflammatory cytokines and chemokines generated in Petri's junction, and effectively improve the inflammatory bowel disease of mice.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (10)
1. A method for preparing fucoidin, which is characterized by comprising the following steps:
s1, crushing undaria pinnatifida by using a crusher, and keeping undaria pinnatifida powder for later use;
s2, weighing undaria pinnatifida powder in a beaker, adding distilled water, uniformly stirring with a glass rod, putting a rotor into the beaker, putting the beaker into a constant-temperature magnetic stirring pot, leaching with hot water, extracting by an ultrasonic auxiliary extraction technology, and centrifuging an extracting solution to obtain a supernatant;
s3, placing the supernatant into a rotary steaming instrument to obtain concentrated solution, mixing 3% CaCl2.2H2O with the concentrated solution, placing the mixture in a refrigerator for standing overnight to enable the alginate to be completely precipitated, centrifuging to remove the alginate precipitate in the crude polysaccharide, and taking the supernatant;
s4, mixing the supernatant with absolute ethyl alcohol, standing for precipitation, and centrifuging to obtain a precipitate;
s5, washing the precipitate with absolute ethyl alcohol for 2 times, and then adding water until the precipitate is dissolved to obtain a solution;
s6, performing rotary evaporation on the dissolution liquid to obtain concentrated liquid;
s7, mixing the concentrated solution with a sevage reagent, oscillating by a vortex meter, standing for layering, and taking supernatant;
and S8, placing the supernatant in a refrigerator for dialysis, and drying the supernatant by using a vacuum freeze dryer to obtain the fucoidin.
2. The method according to claim 1, wherein in the step S2, the mass ratio of the undaria pinnatifida to the water is 1:30; the hot water leaching temperature is 80 ℃ and the time is 3.5h; the ultrasonic auxiliary extraction time is 30min; the centrifugal rotating speed is 4000r/min, and the centrifugal time is 10min.
3. The method for preparing fucoidin according to claim 1, wherein in the step S3, the volume of the concentrated solution is 250mL, the ratio of cacl2.2h2o to the concentrated solution is 1:1, and the standing overnight temperature is 4 ℃; the centrifugal rotating speed is 3000r/min, and the time is 20min.
4. The method for preparing fucoidin according to claim 1, wherein the volume ratio of supernatant to absolute ethanol in the step S4 is 1:4, and the final concentration is 80%; the sedimentation time is 12h, the centrifugal rotating speed is 4000r/min, and the centrifugal time is 10min.
5. The method for preparing fucoidin according to claim 1, wherein the volume ratio of the concentrated solution to the sevage reagent in the step S7 is 6:1, and the formulation ratio of the sevage reagent is: chloroform: n-butanol=4:1=v: V, the vortexing time was 20min, and the layering was aqueous layer-denatured protein layer-organic layer with liquid from top to bottom.
6. The method according to claim 1, wherein the dialysis membrane with a molecular weight cut-off of 10-15kDa is used in the dialysis in the step S8, the dialysis temperature is 4 ℃ in a refrigerator, the time is 24 hours, and the number of distilled water changes during the dialysis is 2, wherein the first change is after 4 hours and the second change is after 8 hours.
7. Use of a fucoidin according to any one of claims 1-6 for the preparation of an anti-inflammatory drug.
8. Use of a fucan according to claim 7 for the preparation of an anti-inflammatory medicament, wherein the anti-inflammatory comprises anti-inflammatory bowel disease.
9. The use of fucoidan according to claim 8 for the preparation of an anti-inflammatory agent, wherein said anti-inflammatory bowel disease comprises decreasing the expression of integrin α4β7 and mucoaddress adhesion molecule 1 in the peyer's patch and modulating inflammatory factor levels.
10. The use of fucoidan according to claim 9 for the preparation of anti-inflammatory drugs, wherein said inflammatory factors comprise transforming growth factor- β, interferon- γ, tumor necrosis factor- α, interleukin-1 β, interleukin-10 and interleukin-6.
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