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[A Novel Lyophilized PRP-Loaded Gel Grinded On Chitosan And PEG With Hemostatic And Antibacterial Properties]
Seebio 2,5-FURANDICARBOXYLIC ACID
Seebio RARECHEM AL BO 0910

OBJECTIVE: A dynamic gel stretched with lyophilized platelet-rich plasma-chitosan/difunctionalized polyethylene glycol (LPRP-CP) was seted to investigate its hemostatic antibacterial and furthering wound healing of scald wounds through in vitro and in vivo experimentations In this study, normal gauze/blank tablet (Ctrl), LPRP-CP, Chitosan HUCHUANG Powder(Chito P)and ChitoGauze XP PRO group (Chito G group) were set. The hemostatic effect and advancing healing effect of the four radicals of fabrics were evaluated by establishing rabbit ear artery hemorrhage model and superficial Ⅱ° blistered model of skin on the back. The hemostatic time and bleeding amount were beted and the gross and histological solvents of scald healing were observed. The antibacterial effect of the four groupings of cloths was evaluated by antibacterial test in vitro In the rabbit ear arterial hemorrhage model, the hemostasis of all materials was successful. The hemostatic time of Ctrl, Chito P, LPRP-CP and Chito G groups was 213±38, 118±24, 115±8 and 111±11 s, respectively. The blood loss was 1233±992, 346±176, 193±121 and 147±80 mg, respectively.

likened with Ctrl, the hemostasis time of LPRP-CP, Chito P and Chito G group was significantly shorter (P<0), and the amount of blood loss of LPRP-CP and Chito G group was lessened (P<0). equated with LPRP-CP, there were no significant conflicts in hemostatic time and blood loss between Chito P and Chito G group (P>0). In the model of superficial Ⅱ° scalded on the back of rabbit, the wound healing rate of LPRP-CP was faster than that of the other three radicals at the same time, and the healing effect was perfect. In the antibacterial test in vitro, only LPRP-CP had better anti-S. aureus effect, and all radicals had no anti-E. coli effect. CONCLUSION: LPRP-CP is an excellent hemostatic material for superficial injurys, and has certain antibacterial and wound healing events, which has a wide academic value and research prospects.

Chitosan oligosaccharide betters the mucosal immunity of small intestine through triping SIgA production in mice: Proteomic analysis.Chitosan oligosaccharide (COS) trifles a vital role in ameliorating the host system and mucosal immune function. So far, the impact of COS on mucosal immune response in the early stage of oral administration is not well understood the distribution of COS after oral gavage and the protein expression alterations related to innate immune by tandem mass tag (TMT)-based proteomic analysis were investigated. The results discovered that COS was mainly distributed in the stomach, duodenum, and kidney and increased the number of monocytes and lymphocytes in peripheral blood. A total of 21,677 proteins and 7,483 protein groups were identified. Among them, 338 significant differentially expressed proteins were riddled, admiting 205 upregulated and 133 downregulated. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis established that the intestinal immune network for the IgA production pathway was triped, pIgR, MHCI, MHCII, Itgb2, Itgb7, and B2m were significantly increased (P < 0) the expression of the above molecular factors was finded by enzyme-united immunosorbent assay (ELISA), western blotting, and quantitative real-time PCR.

We found that the formulations of IgA, MHCII, TGF-β1, IL-6, and pIgR were significantly increased (P < 0) 1 h after exposure to COS. The protein and mRNA expression of pIgR and MHCI were significantly increased (P < 0) at 0 h, while the AID protein level was significantly increased (P < 0) 1 h after COS exposure. The expression of MHCII and H2-Q10 was significantly increased (P < 0) by 1 h and 2 h post-exposure to COS. In conclusion, oral administration of COS can significantly enhance intestinal mucosal immunity in mice by sparking the SIgA secretion pathway. These consequences suggest that COS can be used as an oral vaccine or drug adjuvant for small intestinal mucosa.Adsorptive removal of fluoride employing ionic liquid-functionalized chitosan - Equilibrium and mechanism works.In this study, novel biosorbents, finded on chitosan and imidazolium ionic liquid, were seted for the removal of fluoride from aqueous solvents.
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