Object To study the chemical constituents of the root bark of Lycium chinense Mill Methods Various chromatographic techniques were used to separate and purify the constituents Their structures were elucidated on the physico chemical properties and spectral data Results Five compounds were isolated from the root bark of L chinense and identified as vanillic acid (Ⅰ), apigenin (Ⅱ), linarin (Ⅲ), glucosyringic acid (Ⅳ) and digupigan A (Ⅴ) Conclusion Digupigan A is a new compound. Except vanillic acid, others were isolated from this plant for the first time

Objective To investigate the expression of Ki-67 in bladder transitional cell carcinoma and its relationship with grade and stage. Methods Immunohistochemistry method were used to detect the expression of Ki-67 in bladder transitional cell carcinoma and control groups. Results The positive expression rate of Ki-67 antigen in 60 cases of bladder cancer, 20 cases of benign bladder disease and 10 cases normal bladder mucosa were 25.9 %, 10.3 % and 1.1 %. There were significantly difference among each group. The more grade and stage, the greater expression of Ki-67 antigen. Conclusion Ki-67 antigen is related to cell proliferation. The expression of the Ki-67 antigen in bladder cancer is closely related to the grade extent of tumor, and it is an important cell proliferation indicator. As a signal, Ki-67 antigen reflects cell proliferation, measurement of the expression of the Ki-67 antigen could reflect the condition of tumor cell proliferation. It might be an important prognostic factor for judging the occurrence, development and prognosis of the tumor.

Aim To investigate the expression of GRKs in rats of synovial tissue with collagen-induced arthritis(CIA) and the effect of total glucosides of paeony.Methods SD rats were divided into six groups including normal,model,TGP(25,50,100 mg?kg-1)groups,GTW(40 mg?kg-1)group.Chicken type Ⅱ collagen was used to induce CIA in rats.The expression of GRKs was detected by Westernblot.Results The expression of GRK2,5,6 increased in model group than that in normal group.Compared with the model group,the expression of GRK2,5,6 decreased in TGP groups.Conclusion In rats of synovial tissue with CIA,the expression of GRKs was abnormal,and TGP could change the variation of GRKs which may be one of the mechanisms of TGP improvement CIA.

The tumor necrosis factor receptor (TNF-R)-associated factor (TRAF )is an important of multifunctional intracellular signal transduction factors.TRAFs involve in signal transduction of many receptor families,including TNF receptor family (TN-FR),Toll-like receptors interleukin-1 receptors (TLR-IL-1R) family and so on.TRAFs play important roles in innate immunity and acquired immunity.TRAFs could directly or indirectly re-cruit the intracellular domains of receptors in the condition of ac-tivated receptor,which leads to the activation of transcription factors,such as NF-κB and interferon-regulatory factor (IRF), through signaling pathway.And TRAFs ultimately induce im-mune and inflammatory responses and involve in the development of inflammatory autoimmune diseases.

Objective To evaluate the therapeutic efficacy of gamma knife in treatment of primary trigeminal neuralgia Methods Retrospectively analysis of 120 cases with primary trigeminal neuralgia treated by gamma knife in our department From Jan. 2003 to Mar. 2008 were performed. All cases were treated with the 4 mm collimator and targeted at the proximal nerve at the root entry zone located by MRI. The target dose varied from 80 -90 Gy. Results After a follow-up of 20. 0 ±4. 5 months, complete relief of pain occurred in 69 patients (57. 5%), 50% -90% relief in 34 (28. 3%), relief less than 50% in 12(10.0%) but no relief in 5(4.2 %).The efficient rate was 95. 8% . The common complications include numbness, absence of corneal reflex. 83 patients (69. 2%) experienced temporal facial numbness and 14 patients (11. 7%) reported continuous numbness after treatment of the gamma knife. Conclusions Gamma knife radiosurgery is a minimally invasive technique for the treatment of primary trigeminal neuralgia with few complications.

In the present study, an amino acid mixture had been prepared from whole swine blood by acid hydrolysis, ion-exchange separation and adequate supplementation of L-Trp, L-Met, and L-Ile. The content of essential amino acid, chemical score and essential amino acid index of the product were 49.33, 63.77, and 92.38% respectively and its essential amino acid pattern was closely similar to casein or whole egg protein with sulfur-containing amino acid as its first limiting amino acid. In the rat growth experiment, its nutritional value had been proved to be comparable with casein and better than swine blood powder itself in terms of weight gain, PER, and NPR. Therefore, this amino acid mixture can be considered as an ideal food additive and nitrogen source for elemental diet and this is an important way in the utilization of swine blood.

BACKGROUND:Embryo viability assessment is directly related to the selection of embryo transplantation and clinical outcome of assisted reproduction.
OBJECTIVE:To summarize the assessment methods for early embryonic development.
METHODS:The first author searched PubMed database for relevant articles published from January 1990 to
December 2013 using the keywords of“assisted reproductive technology, art;pre-implantation embryo;embryonic development viability;evaluation methods”in English. Final y, 63 articles were included in result analysis.
RESULTS AND CONCLUSION:In the embryo quality evaluation, the most widely used method is morphological evaluation method which is characterized as rapid, non-invasive, and simple. With the development of assisted reproductive technology, the morphological evaluation combined with time-lapse imaging analysis system has been recognized in embryo selection. Recently, targeted-metabolic analysis has been proposed as a useful tool for assessment of embryo development potential, involving pyruvate acid, glycometabolism, amino acid, and embryo-derived cytokines (soluble human leukocyte antigen G1, platelet-activating factor, etc.). Furthermore, the pre-implantation genetic screening method targeting gene and chromosome abnormality is expected to find more effective markers for evaluating embryo developmental potential.

AIM: To investigate the antagonistic effect of zinc on hepatic ischemia- reperfusion (HIR) injury and the effect of zinc on the expression of adhesion molecules in rat liver to clarify the mechanisms involved. METHODS: After zinc supplementation (5 ?mol/kg bw,po) , the changes in hepatocellular morphology,ALT and AST activities in serum,MDA levels in serum,and expression of ICAM-1,VCAM-1 in liver of the animals subjected to HIR were examined. RESULTS: The results showed that HIR (30 minutes of ischemia followed by 90 minutes of reperfusion) significantly increased ALT, AST activities and MDA levels in serum. The destruction of hepatic structure was observed in HIR rats. In the mean time, the expression of adhesion molecule was enhanced.After zinc administration, ALT and AST activities in serum and MDA levels in serum were all decreased. The structure of hepatocyte was nearly normal.The further experiment showed that adhesion molecule expression was suppressed.CONCLUSION: These results indicate that zinc may protect liver against ischemia-reperfusion injury by inhibiting the production of free radicals and the expression of adhesion molecule.

OBJECTIVE: To investigate the self-renewal mechanism of CD133+ cancer stem cells from Hep-2 cell line. METHOD: The CD133+ cells were sorted by flow cytometry from Hep-2 cell line. Then the sorted CD133+ cells were cultured in RPMI1640. The ability of self-renewal of CD133+ cells were tested by MTT assay. mRNA and protein expression of self-renewal related genes were detected by western blot and RT- PCR. RESULT: (3.10 ± 0.21)% of Hep-2 cells expressed the membrane antigen CD133. CD133+ fraction was raised to (90.20 ± 5.51)% by flow cytometry. In vitro culture and growth curve showed CD133+ cells had more active proliferation ability than CD133- cells, which showed statistically significant difference between these two group (P < 0.01). RT- PCR and western blot results showed upregulated mRNA and protein expression of Fas, c-myc, survivin in CD133+ group (P < 0.01). In the same time, the ratio of Bcl-2/Bax gene expression was obviously increased in CD133+ group. Self-renewal related gene such as β-catenin, SHH, SMOH and Bmi-1,Gli-1 were all up-regulated in CD133+ group both in mRNA and protein. On the contrary, PTCH gene was down-regulated. CONCLUSION CD133 positive cells are a small proportion of a Hep-2 cell line. The results of this experiment verified that CD133 positive cells owned the properties of cancer stem cells. Upregulated anti-apoptotic gene is the foundatiom of self-renewal mechanism of CD133+ cells. Cancer stem cells related signal pathways such as Hedgehog, Wnt and Bmi-1 pathway are in state of activation. The identification of self-renewal mechanism about cancer stem cell provides a powerful tool to investigate the tumorigenic process in the larynx and to develop therapies targeting to these signal pathways.
AC133 Antigen ; Antigens, CD ; Apoptosis ; Cell Physiological Phenomena ; physiology ; Down-Regulation ; Flow Cytometry ; Glycoproteins ; Humans ; Laryngeal Neoplasms ; Neoplastic Stem Cells ; physiology ; Patched Receptors ; Patched-1 Receptor ; Peptides ; Receptors, Cell Surface ; genetics ; metabolism ; Signal Transduction ; beta Catenin ; genetics

Objective To analyze the cause of anemia in patients after hip arthroplasty and to explore correlative nursing intervention. Methods 47 patients undergoing hip arthroplasty in our hospital from 2007 to 2010 were reviewed, they were divided into elderly group (≥70 years old) and non-elderly group (<70 years old). Intra-operative blood loss, post-operative visible blood loss, hidden blood loss, total blood loss, perioperative hemoglobin and number of anemia were compared. Results The average volume of intra-operative blood loss and extra- operative blood loss were significantly lower in elderly group than in non-elderly group (P<0.001); the hidden blood loss was significantly higher in elderly group and in non-elderly group (P<0.001); the incidence of anemia in elderly group was higher than in non-elderly group (P<0.05). Conclusion More post-operative hidden blood loss can be found in patients over 70 years old after hip arthroplasty, so as to the incidence of anemia. The perioperative nursing care and observation should be strengthened to reduce the incidence of anemia.