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Objective To explore and analyze the related factors of nosocomial infection in patients after total laparoscopic hysterectomy.Methods A total of 231 patients undergoing total laparoscopic hysterectomy were enrolled in this study and their data were retrospectively analyzed.The related factors such as uterus size,operation duration,intraoperative blood loss,type of disease,drainage tube,hospital duration before surgery,and history of pelvic surgery were analyzed.Results Among the 231 cases undergoing total laparoscopic hysterectomy,23 cases had infection and the infection rate was 9.96％.Univariate analysis showed uterus size,operation duration,intraoperative blood loss,hospital duration before surgery,and history of pelvic surgery had influence on postoperative infection and the difference had statistical significance (P＜0.05),while the difference of age and drainage tube had no statistical significance on postoperative infection (P＞0.05).Conclusion The incidence of infection after laparoscopic hysterectomy is related to uterus size,operation duration,intaoperative blood loss,hospital duration before surgery,and history of pelvic surgery.
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Technologies for glycomics usually involve methods for separation and purification of poly-saccharides, and separation, structure resolution, quantification, property investigation and function comment of glycan chains. Because of the different biochemical properties of glycoproteins, proteogly-cans and glycolipids, the separation and purification of polysaccharides involve corresponding fractional precipitation, boric acid affinity, titanium dioxide, affinity chromatography, size exclusion method, and gel filtration chromatography column chromatography methods. The lectins, water affinity chromatogra-phy , solid phase extraction and other technologies could be applied to the oil enrichment of high pure and specific glycan chains. The structure of glycan chains can be analyzed using lectin microarray technolo-gy, mass spectrometry, and derivatization markers of glycan chains. lsotope labelling and metabolic labeling can be used to quantify glycan chains. The glycan biological function can be better understood using glycan chain structure analysis software and database of glycan chains by bioinformatics.
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AIM To determine the effects of glycoconjugates and their glycans from Lycium barbarum L. on inhibiting low density lipoprotein (LDL) peroxidation. METHODS Using Cu2+-induced oxidation as a model, the oxidative production of thiobarbituric acid-reactive substances (TBARS) and the LDL electrophoresis migration on agarose gel were measured. RESULTS The effects of glycoconjugates and their glycans from Lycium barbarum L. on inhibiting LDL peroxidation were different, among them, glycoconjugate LbGp5 showed the best effect on inhibiting LDLperoxidation. CONCLUSION The glycoconjugates can inhibit LDL peroxidatin while their glycans showed no effects on inhibiting LDL peroxidation.
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AIM To elucidate the structure of the glycan of SPPA-1, a glycoconjugate isolated from Spirulina platensis. METHODS Methylation analysis, GC/MS, and 1D, 2DNMR techniques were used to determine the structures of the glycoconjugate (SPPA-1). RESULTS SPPA-1 was only composed of α-D-glucose and shown to be a (1→4) linked α-D-glucan to which a few glucosyl side chains are attached at O-6 of the glucosyl residues of the main chain. CONCLUSION The glycan of SPPA-1 is a new glucan.
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A polysaccharide SPPC 1 was isolated from spirulina platensis by acetone fractional precipation, free protein was removed by trichloroacetic acid(TCA). Purification of the polysaccharide by Sephadex G 75 colume and CM Sephadex C 50 colume.The homogeneity of this polysaccharide was proved by HPLC and CE. molecular weight was 1.62?10 6. GC showed that the glycoconjugate was composed of Rha,Xyl,Man and Glc. Molar ratio is Rha:Xyl:Man:Glc=6.24:0.37:0.13:0.71. IR, 1HNMR spectrum indicated the presence of ? linkage glycoside. ESR experiment showed that SPPC 1 could eliminate O . 2 radicals.