liver cells. The thermosensitivity of the normal rabbit hepatocyte was higher than that of biliary epithelial cells to radiofrequency ablation. Apoptosis was correlated to the thermal effect induced by RFA.

Aged ; Antigens, CD34 ; analysis ; Female ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Proto-Oncogene Proteins c-bcl-2 ; analysis ; Solitary Fibrous Tumors ; metabolism ; pathology

OBJECTIVETo explore in vivo metabolic changes in abnormal savda patients with different types of tumor.

METHODSA total of 142 abnormal savda patients with common cancer types were enrolled in this study, and 50 healthy volunteers were recruited as the control group. For each sample, the H Nuclear Magnetic Resonance (NMR) based metabonomic analysis was performed. The free attenuation signal was computed subsection integral. Data obtained were analyzed by the Orthogonal Partial Least-Squares Discriminant Analysis (OPLS-DA).

RESULTSCompared with the control group, leucine, isoleucine, valine, histidine, phenylalanine, tyrosine, alanine, creatine, lactic acid, inositol, alpha-and beta-glucose, unsaturated lipids, very low density lipoprotein (VLDL) significantly decreased (P <0.05), while glycoprotein and carnitine significantly increased (P <0. 05) in the abnormal Savda group.

CONCLUSIONAbnormal savda patients with different types of tumor had similar metabonomics changes.

Discriminant Analysis ; Humans ; Least-Squares Analysis ; Lipids ; blood ; Magnetic Resonance Spectroscopy ; Metabolome ; physiology ; Metabolomics ; Neoplasms ; metabolism

Objective To investigate the optimal time for capsule endoscopy in patients with obscure gastrointestinal bleeding (OGIB) .Methods Data of 76 patients with OGIB underwent capsule endoscopy from January 2013 to December 2014 were retro‐spectively analyzed .They were classified into two groups :emergency capsule endoscopy and non‐emergency capsule endoscopy .The demographic and clinical features and outcomes of capsule endoscopy ,complications and the times of hospital stays and hospitaliza‐tion expenses were compared .Results The overall diagnostic yield of capsule endoscopy was 48 lesions(63 .15% ) .The overall di‐agnostic yield of emergency capsule endoscopy group was 73 .68% (28/38) ,which was significantly higher than that in non‐emer‐gency capsule endoscopy group(52 .63% ,20/38) ,with statistical difference (P< 0 .05) .Conclusion Emergency capsule endoscopy have a higher rate of detection ,patients with OGIB should receive capsule endoscopy as soon as possible .

Adolescent ; Adult ; Aged ; Cadherins ; genetics ; metabolism ; physiology ; Female ; Humans ; Inhibitor of Apoptosis Proteins ; Ki-67 Antigen ; genetics ; metabolism ; Male ; Microtubule-Associated Proteins ; genetics ; metabolism ; physiology ; Middle Aged ; Neoplasm Invasiveness ; physiopathology ; Pituitary Neoplasms ; pathology ; physiopathology ; Young Adult

Objective To compare the effects of vitrification with slow-freezing on the developmental ability of day 3 cleavage stage embryos.Methods Patients who had no less than 4 high quality embryos were included in this study.These embryos were cryopreserved using the methods of vitrification or slow-freezing.In the eryopreserved embryo transfer cycles,the embryos which were cryopreserved using one of the methods were chosen randomly.The developmental ability of embryos was compared between these two groups.Results A total of 80 patients were included in this study with 160 embryos.In the group of slow-freezing,73(91%)embryos were survived and achieved 15(38%)clinical pregnancies.Among these,3 were twins and the implantation rate was 25%(18/73).In the group of vitrification,71(89%)embryos were survived and achieved 19(48%)clinical pregnancies.Among these, 9 were twins and the implantation rate was 39%(28/71),which was significantly higher than the slow- freezing group(P

Cold Temperature ; Dinoprost ; analogs & derivatives ; urine ; Dust ; Humans ; Interleukin-6 ; urine ; Thromboxane B2 ; analogs & derivatives ; urine ; Weather

BACKGROUND: The immature dendritic cell (imDC) can induce immunological tolerance and has widely application in the field of organ transplant. At present, the methods of inducing imDC are insufficient, so the new induction method is demanding.OBJECTIVE: To investigate the effect of sodium butyrate (SB) on the maturation and immunological function of human peripheral blood-derived imDC.DESIGN: Controlled observation and in vitro cytological trial.SETTING: Department of Hepatobiliary Surgery in the Second Affiliated Hospital of Sun Yat-sen University.MATERIALS: Five samples of human peripheral blood were obtained from the healthy volunteers (aged 20-23 years) of Sun Yat-sen University, totally 500 mL. Then peripheral blood mononuclear cells (PBMCs) and lymphocytes were isolated within 2 hours.METHODS: The experiment was carried out in the Medical Research Center of the Second Hospital Affiliated to Sun (1 mmol/L) was added for induction, while those supplemented with maturation promoting factor lipopolysaccharide (LPS)the beginning of induction, while LPS was added on the sixth day for second stimulation.MAIN OUTCOME MEASURES: Cell morphological change, flow cytometry was used to detect DC phenotype,FITC-labeled Dextran was used to detect the endocytosis of DC, the production of IL-12 was determined by means of enzyme-linked immunosorbent assay, and the proliferation of lymphocyte induced by DC was assayed with mixed lymphocyte reaction.expressions of CD80, CD83 and HLA-DR were significantly lower in the imDC of routine induction group following SB maturity promoting, compared with LPS group (P＜0.01). On the sixth day, LPS was added into the SB-induced imDC,Endocytosis of DC: The imDC of routine induction group possessed a significantly lower endocytic activity after induced by LPS, and there were extremely significant differences compared with blank control group and SB maturation Production of IL-12: The production of IL-12 in the mDC induced by LPS was significantly higher than that in control group, SB maturation promoting group and SB induction group, the mDC induced by LPS in routine induction group stimulated significantly stronger proliferation of lymphocyte (P＜0.01).

Objective:To investigate the significance and mechanism of ten-eleven translocation (Tet1) against Mycobacterium marinum ( Mm) infection in mice. Methods:SPF wild-type C57BL/6 and Tet1-knockout (Tet1KO) mice were injected intravenously with Mm. All mice were monitored and the abscesses formed in tail were observed and quantified. Pathological changes in mouse tail tissues were observed using hematoxylin and eosin (HE) staining and transmission electron microscopy and the differences between the two groups were analyzed. Immunohistochemistry staining was used to detect the expression and distribution of TNF-α and TGF-β in mouse tail tissues. Moreover, mouse tail tissues were cultured on 7H10 plates for bacterial counting. The expression of NF-κBp65 and TGF-β was detected by Western blot. Results:Obvious lesions including abscesses and ulcers were formed in the Mm-infected C57BL/6, but only scattered small abscesses were observed in Mm-infected Tet1KO mice. During Mm infection, the bacterial load was gradually increased in C57BL/6 mice, but decreased in Tet1KO mice. Histopathological examination showed that obvious inflammatory cell infiltration and typical granulomatous lesions were found in Mm-infected C57BL/6 mice, while no significant inflammatory cell infiltration was detected in Mm-infected Tet1KO mice. Immunohistochemistry staining demonstrated that the expression of TNF-α and TGF-β was lower in Mm-infected Tet1KO mice than in Mm-infected C57BL/6 mice. Moreover, the expression of phosphorylated NF-κBp65 and TGF-β was significantly reduced in Mm-infected Tet1KO mice as compared with that in Mm-infected C57BL/6 mice. Conclusions:Deletion of Tet1 could alleviate the inflammatory damage mediated by Mm and enhance the host immune response to bacteria.

AIM: To investigate the immunological function of sodium butyrate-induced immature dendritic cells in vitro.METHODS: The human monocyte-derived dendritic cells were induced in the presence of human granulocyte macrophage-colony stimulating factor(GM-CSF) and interleukin-4 (IL-4), combined with sodium butyrate. The immunological function of sodium butyrate-induced dendritic cells was detected by the FCM, endocytic activity, T cells stimulatory proliferation capacity, and interleukin-12 (IL-12) production.RESULTS: Sodium butyrate could down-regulate the major histocompatibility complex(MHC) class II and costimulatory molecules of dendritic cells, increase the endocytic activity, induce a stage of T-cell anergey, and inhibit the T helper cell type 1-skewing factor IL-12 production. CONCLUSION: Sodium butyrate inhibits the maturation of dendritic cells and induces production of immature dendritic cells, which may help to explore the machenism of its epigenitic modification.