Objective To study the effect of down-regulation of E-cadherin on the invasion ability of tumor cells.Methods Human pancreatic carcinoma cell line JHP-1 was treated with E-cadherin antisense oligodeoxynucleotied(ASODN).The immunocytochemistry,Western blot were used to detect the expression and the contents of(E-cadherin) in the tumor cells,and the invasive ability of tumor cells were evaluated by invasive-MTT assay.Results Treated with E-cadherin ASODN,the expression of E-cadherin on JHP-1 cells were reduced,and the protein contents were decreased as well compared with control groups and ODN group.The invasive ability of JHP-1 cells to the basement membrane was increased(P

Objective To investigate lymph node metastases in distal gastric cancer and its clinical significance. Methods From June 2006 to December 2007, 129 distal gastric cancer patients underwent radical gastrectomy with lymphadenectomy. Dissected lymph nodes were collected in groups, and histopathological studies were performed to detect lymph node metastasis. The relationship between lymph node metastasis and tumor parameters such as diameter, location, infiltrating depth, histological category,Borrmann typing was evaluated. Results Lymph node metastases was found in 80 out of 129 patients (62%). A total of 3295 lymph nodes were harvested with an average of 25.54 lymph nodes per patient,among those 889 lymph nodes were identified with metastasis. The metastasis rate was 18.60%, 48. 84%,37. 98%, 38. 76%, 44. 19%, 31.01%, 10. 85%, 14. 73%, 4. 65%, 1.55% and 0. 78% respectively in No. 1, No. 3, No. 4d, No. 5, No. 6, No. 7, No. 8a, No. 9, No. 11 p, No. 12a, No. 14v lymph node group.No. 3 and No. 6 group nodes were moat frequently invaded by metastasis. Conclusion This study provides the regular pattern of lymph node metastasis in distal gastric carcinoma patients undergoing radical gastrectomy and perigastric lymphadectomy which helps to guide lymphadectomy in terms of less trauma and favorite prognosis.

Objective To investigate the pathogen and drug susceptibility in appendical intracavity with appendicitis, and guide clinically the selection of reasonable antibiotics. Methods Germicultures and drug susceptibility tests were conducted for the secretions from appendical intracavity of the 71 patients with appendicitis. Result (1) Totally 9 species (63 cases) of bacterium were isolated from clinical samples, positive rate of isolation was 88.7%. The first one was escherichia coli (49 cases). (2) The positive rates of germiculture were no differences in patients with different types of appendicitis. Age and BMI were associated with the results of germiculture. Gender, temperature, neutrophil, fecalith were not associated with the positive germiculture. (3) The curative effect of the third and the fourth generation cephalosporins and carbapenems were well. The curative effect of the first generation cephalosporins, quinolones and penicillins were not well. Conclusion (1)In all samples,escherichia coli are the dominant species of bacterium. The distribution of isolation is no difference in patients with different types of appendicitis. (2) The third generation cephalosporins are commonly used in clinical treatment with the obvious anti-bacteria effects, The fourth generation cephalosporins and carbapenems can act as the optimal drug for serious infection. Quinolones is not the optimal antibiotics. Penicillins antibiotic is not proposed to be used.

Objective To compare the consistency of immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH) in detecting c-erbB-2 status in breast cancer tissues. Methods A total of 50 breast cancer paraffin embedded samples were selected, of which there were 10 cases of c-erbB-2 protein expression (+), 20 cases of (++) and 20 cases of (+++). FISH was used to assess the amplification of c-erbB-2 gene, and SPSS 13.0 software was employed to analyze the difference and consistency between the two methods. Results IHC and FISH methods had a good consistency when detecting c-erbB-2 (+) and (+++) expressions in breast cancer tissues, with the coincidence rate of 89.2%. However, when IHC was used to test c-erbB-2 (++), the result of FISH was quite different, with the coincidence rate of only 35.3%. Conclusion IHC is a preliminary method to detect c-erbB-2 status in breast cancer. IHC and FISH methods have a good consistency in detecting c-erbB-2 (+) and (+++) status in breast cancer tissues. As detection of c-erbB-2 (++) with IHC has a different result from FISH, such patients should receive FISH confirmation for herceptin therapy.

Objective To investigate the effect of β-elemene on SGC7901 gastric cancer cell line and the potential proteins involved. Methods Human SGC7901 gastric cancer cells were treated with different concentrations ofβ-elemene.Cell viability was assessed.A proteomic method,isobaric tags for relative and absolute quantitation (iTRAQ),was employed to detect the proteins altered by β-elemene.Protein expression was validated by Western blot.Results β-elemene inhibited the viability of SGC7901 gastric cancer cells in a dose-dependent manner.Altogether,147 upregulated proteins and 86 downregulated proteins were identified in response to β-elemene treatment in SGC7901 gastric cancer cell line.Among them,the expressions of p21-activated protein kinase-interacting protein 1 (PAK1IP1 ),Bcl-2-associated transcription factor 1 (BTF)and topoisomerase 2-alpha (TOPIIα)were validated by Western blot and the trends were consistent with iTRAQ results.Top pathways involved inβ-elemene treatment in SGC7901 gastric cancer cell line included ribosome signaling,peroxisome proliferator-activated receptors (PPARs)signaling pathway,regulation of actin cytoskeleton,phagosome,biosynthesis and metabolism of some amino acids.Conclusion Our results suggest a promising therapeutic role of β-elemene for gastric cancer.The differentially expressed proteins give us better insights into the potential mechanisms involved in gastric cancer treatment using β-elemene.

Objective To establish a simple and stable model of orthotopic small intestinal transplantation(OIT) in rats.Methods The harvested en bloc segmental intestine consisted of donor abdominal aorta with superior mesenteric artery and portal vein.After in situ infusion with lactated Ringer′s solution,the graft was stored in 4℃ lactated Ringer′s solution.The segmental intestine transplantation was performed by end-to-side anastomosis of donor abdominal aorta to recipient abdominal aorta.The donor portal vein was anastomosed to the recipient left renal vein by "cuff anastomosis".The graft was anastomosed orthotopically by continuous(sutures).Results Sixteen intestine transplantations were,performed the average time for the arterial and(venous) anastomosis was 25?5 min and 4?1 min,respectively.Among the 16 recipient rats,13 survived more than 5 days.The average survival time was 10.35?2.84 days;the longest survival time was 21 days.Conclusions Graft harvesting,the technique of vascular and intestinal anastomosis and the(maintenance) of adequate blood volume are the key points for success of the operation.This successfully(established) model can serve as an excellent animal model for basic research of small intestinal trasplantation.

OBJECTIVEAnimal studies have demonstrated a lipid-modulating effect of yun-cai tea. However, little is known about the lipid-lowering effect in humans.The aim of this study was to evaluate the lipid lowering effects and safety of yun-cai tea in patients with elevated lipid levels in a human clinical trial.

METHODSThis was a 12-week, randomly assigned, parallel-group, double-blind, and placebo-controlled pilot clinical study. Sixty primary hyperlipidemia patients were included and randomly assigned to the yun-cai tea group (30 patients) and the placebo group (30 patients), for 8 weeks of treatment and 4 weeks of follow-up. The primary endpoint was changes in plasma low-density lipoprotein-cholesterol (LDL-C) at 8 weeks. The secondary endpoints included total cholesterol (TC) and triglycerides (TG).

RESULTSOur results revealed no statistically signifificant differences in LDL-C and TC between the two groups. Despite the lack of a statistically signifificant difference in the level of TG between the two groups, a declining trend was noted. A signifificant reduction of TG was observed in the yun-cai tea group at week 8, compared to baseline (P=0.048). The incidence of stomach discomfort, gastroesophageal reflfl ux, diarrhea, and constipation was slightly higher in the yun-cai tea group. No other signifificant adverse events were found.

CONCLUSIONIt is unlikely that yun-cai tea used had a blood lipid reduction effect. Further larger scale clinical trials with a longer duration and larger dose are necessary.

Adult ; Double-Blind Method ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Herbal Medicine ; Humans ; Hyperlipidemias ; drug therapy ; Hypolipidemic Agents ; therapeutic use ; Male ; Middle Aged ; Placebos

OBJECTIVETo investigate the effect of exchange of tracheal tube for a laryngeal mask airway (LMA) on intratracheal extubation stress response under deep anesthesia level after surgery in elderly patients with hypertension.

METHODSFrom October 2008 to June 2009, 40 hypertension patients aged from 65 to 78 years scheduled for upper abdominal surgery were randomly divided into 2 groups, one was extubated intratracheal tube when being awake (group TT, n = 20) and the other was extubated and exchanged for LMA under deep anesthesia (group LM, n = 20). The American Society of Anesthesiologists (ASA) of the patients were I o rII. The data of mean arterial pressure (MAP), heart rate(HR), pulse oxygen saturation (SPO(2)), end-tidal carbon dioxide tension (P(ET)CO(2)) and rate pressure product(RPP) were recorded before induction of anesthesia (T(0)), suction (T(1)) and at 0 (T(2)), 5(T(3)), and 10 (T(4)) and 15 min (T(5)) after extubation tracheal tube or LMA in two groups. The indices mentioned above also were recorded before and after extubation in group LM. Blood samples were taken at T(0), skin incision, T(2), T(3), for determination of serum concentrations of blood glucose and cortisol. The airway adverse events in the recovery period were recorded.

RESULTSCompared with group LM, MAP, HR and RPP were significantly higher at T(1), T(2), T(3) than T(0) in group TT (P < 0.05). There was no significant difference in the indices mentioned above during extubated intratracheal tube and exchanged for LMA under deep anesthesia in group LM (P > 0.05). The incidence rate of glossoptosis in group TT was significantly higher than those in group LM (P < 0.01), while complications, such as cough, bucking, breath holding during the recovery stage in group TT were more than those in group LM (P < 0.05). Compared with the baseline value, blood glucose and cortisol concentration level were significantly increased in group TT than in group LM (P < 0.01).

CONCLUSIONSExchange of tracheal tube for LMA under deep anesthesia during recovery stage can decrease the stress response during the recovery stage and attenuate the harmful response of respiratory tract. It is suitable for the elderly patients with hypertension.

Aged ; Anesthesia, General ; Device Removal ; methods ; Female ; Humans ; Hypertension ; physiopathology ; Intubation, Intratracheal ; Laryngeal Masks ; Male ; Postanesthesia Nursing ; Stress, Physiological

Objective To screen monoclonal antibodies (mAbs) for early diagnosis of invisive Aspergillus. Methods Monoclonal antibodies against different antigens of Aspergillus fumigatus were produced. The two pairs of combinations of monoclonal antibodies were selected accoring the distinct epitopes and double-antibody sandwich ELISA based on mAbs above were established. The sensitivity and specificity of the methods were analyzed by detecting culture supernatants of clinical isolates and environmental isolatesof Aspergillus. spp, Penicillium Marneffei, Candidas, and serum from animal models and patients. The epitopes recognized by mAbs were identified by immunobotting. Results A total of 32 hybridoma cell lines that stably produced MAbs were obtained. Two double- antibody sandwich ELISAs were established. One method was specific for 19 clinical isolates and environmental isolates of Aspergillus. spp, whereas the other one was specific for the clinical and environmental isolates of Aspergillus fumigatus without cross-reation with other Aspergillus. spp. For the same kind of medium of Aspergillus fumigatus, the sensitivity of the first method was 10 fold higher than the second method. Conclusions The specific mAbs for early diagnosis of invisive Aspergillus were obtained. Antigen recognized by the specific mAbs was mannoprotein with molecular weights of approximately 25 000-75 000. This antigen was potential early diagnostic marker for invasive Aspergillus.

OBJECTIVETo find the patterns of the rDNA ITS sequence variation of Crocus sativus, Chrysanthemum chanetii, Nelumbo nucifera, Zea mays and Garthamus tinctorius and to establish the molecular biological method for the identification of C. sativus and the others.

METHODAfter the total DNA of Crocus sativus, C. vernus-w and C. vernus-p were extracted, the ITS sequence was amplified by PCR with universal primer of ITS and PCR product was sequenced after purification and cloning. The ITS sequences of Chrysanthemrnum chanetii, Nelumbo nucifera, Zea mays and Garthamus tinctorius were obtained from GenBank.

RESULTThe complete ITS sequence of Crocus sativus, C. vernus-w and C. vernus-p, including ITSI rDNA, 5.8S rDNA, ITS2 rDNA were measured. The GenBank accession No. was DQ094185, DQ224363 and DQ224364 respectively. The similarity of ITS sequence between C. sativus and the two garden species of C. vernus was above 91%; the identity was 99.84% between C. vernus-w and C. vernus-p. The range of diversity between C. sativus and other herbs was above 46% based on ITS1 and above 41% based on ITS2.

CONCLUSIONC. sativus can be distinguished from misused substitutes by the ITS sequence. The ITS sequence is an available molecular marker for identification of the C. sativus.

Chrysanthemum ; genetics ; Crocus ; genetics ; DNA, Plant ; chemistry ; genetics ; DNA, Ribosomal ; chemistry ; genetics ; DNA, Ribosomal Spacer ; chemistry ; genetics ; Genetic Variation ; Molecular Sequence Data ; Nelumbo ; genetics ; Plants, Medicinal ; genetics ; Polymerase Chain Reaction ; Sequence Analysis, DNA ; Zea mays ; genetics