Objective To study the expression of cyclooxygenase-2,epithelial cadherin and vascular endothelial growth factor-c in colorectal cancer and its significance. Methods Seventy-seven patients with colorectal cancer were detected the expression of COX-2, E-ca nd VEGF-c by immunohistochemical SP method. Results COX-2 positive expression in colorectal cancer tissue was 24.7%; E-ca positive expression rate of 68.8%; VEGF-c expression rate of 84.4%. COX-2 in highly differentiated cancer tissues was significantly higher than in poorly differentiated ones (P ＜0. 05); E-ca in the tubular adenocarcinoma was higher than in the mucous glands cancer and other types of cancer ( P ＜ 0. 05 ); The Positive expression rate of E-ca in the stage Ⅰ + Ⅱ was significantly higher than stage Ⅲ + Ⅳ (P ＜0. 005). COX-2 protein expression and VEGF-c expression was negatively correlated (P ＜ 0. 05 ). Conclusion Combined detection of COX-2,VEGF-c and E-ca is helpful to recognize the occurrence, development and tratment of colorectal cancer.

Fourteen compounds were isolated from Dalbergia odoriferae and purified by repeated column chromatography on silica and sephadex LH-20 gel and structurally identified by spectral analysis. These compounds were identified as 4, 9-dimethoxy-3-hydroxypterocarpan (1), medicarpin (2), 2', 4', 5-trihydroxy-7-methoxyisoflavone (3), 2', 3', 7-trihydroxy-4'-methoxyisoflavan (4), formononetin (5), 3, 8-dihydroxy-9-methoxypterocarpan (6), koparin (7), 3-hydroxy-9-methoxypterocarp-6a-ene (8), 2'-hydroxyformononetin (9), stevenin (10), 2', 7-dihydroxy-4', 5'-dimethoxyisoflavone (11), lyoniresinol (12), 2, 4-dihydroxy-5-methoxy-benzophenone (13) and neokhriol A (14). Compounds 1, 3, 4, 6, 8, 12 and 14 were isolated from this plant for the first time. Antibacterial activity assay showed that compound 4 had inhibitory effect on Ralstonia solanacearum.
Anisoles ; chemistry ; isolation & purification ; pharmacology ; Anti-Bacterial Agents ; chemistry ; isolation & purification ; pharmacology ; Benzophenones ; chemistry ; isolation & purification ; pharmacology ; Chromatography ; methods ; Dalbergia ; chemistry ; Dextrans ; Gels ; Isoflavones ; chemistry ; isolation & purification ; pharmacology ; Microbial Sensitivity Tests ; Naphthalenes ; chemistry ; isolation & purification ; pharmacology ; Plant Extracts ; chemistry ; isolation & purification ; pharmacology ; Pterocarpans ; chemistry ; isolation & purification ; pharmacology ; Ralstonia solanacearum ; drug effects ; growth & development ; Silica Gel

Objective To study the effect of platelet-derived growth factor(PDGF)and lysosomes on lung injury in macaque with early-phase endotoxie shock.Method Eleven macaques were randomly divided into two groups,namely,control group(Co group,n=5)iand endotoxic group(En group,n=6).The macaque of the Co group injected with 1 ml/kg normal saline and the macque of the En group received a dose of 2.8 mg/kg Lipopolysaccharides(LPS)i.v.The blood gas was detected at 120 minutes after LPS challenging. Uhrastructure,cytochemistry of acid phosphatase(ACPase)detection by electronic microscopy and immunohistochemical assay of PDGF were completed in hmgs of all the macaque .Results Administration of LPS did not change the parameters of gas exchange,namely,PaO_2,PaO_2/Fi and PaCO_2.In the early phase,of endotoxic shock,ACPase activity products increased and lysosome destroyed in the alveolar cells.The pathologic changes of alveolus,such as degeneration of vessel endothelium,injury of alveolar epithelium and damage of basement membrane,and transudation of blood component were observed by electron microscopy in the En group. However,no pathological changes were found in the control group.By immunohistochemical staining,PDGF on alveolar wall in the En animals was observed,whereas no PDGF protein in the Co macaques was noticed. Conclusions Administration of LPS induced the expression of PDGF in the alveolar wall and lysosome injury in the alveolar cells,as a result of alveolar damage in early-phase endotoxin shock.In the meantime,the parameters of gas exchanges did not change.The PDGF may play an important role in the pathogenesis of lung during the early-phase of endotoxin shock.

Objective To investigate the relationship between hepatitis B virus (HBV)deoxyribonucleic acid (DNA) and HBV covalently closed circular DNA (cccDNA) in the ovary and HBV intrauterine infection.Methods HBV DNA and HBV cccDNA were assayed in the ovaries of 33 pregnant women who were positive for HBV DNA,tested by Fluorescent quantitative polymerase chain reaction (FQ-PCR).The level of HBV mark (HBVM) and the content of HBV DNA in peripheral blood of infants were measured by chemoluminescence and FQ-PCR methods respectively.Results The overall positive rate for both HBV DNA and HBV cccDNA in ovarian samples was 51.52％ (17/33).The rate on intrauterine infection among infants was 12.12％ (4/33) and all the 4 infected infants were delivered from mothers with normal hepatic function.When HBV DNA and HBV cccDNA were both positive,the rate of intrauterine infection in infants was significantly higher than those who were with both negative results (P＜0.05).Levels of HBV cccDNA and the rate of positive samples were significantly higher in mothers with infants who appeared to have had intrauterine infection than those did not (P＜0.01 and ＜0.05,respectively).Conclusion HBV infection could be discovered in the human ovary and might be transmitted to the filial generation via ovum.

Objective To study the pharmacokinetics of sodium aesci-nate after intravenous infusion in Chinese healthy volunteers. Methods Sodium aescinate for injection were given to 9 healthy volunteers of a single dose of 10 mg, the concentrations of aescinate in human plasma and urine were determined by HPLC-MS/MS, the main pharmacokinetic parameters were calculated with WinNonlin 5. 0. Results The main pharmacokinetic parameters of A ingredient of aescinate and B ingredient of aescinate were as follows: C_(max) were ( 283. 00 ± 70. 53 ), (206. 33 ± 57.20) ng · mL~(-1); AUC_(0-t) were (1008.05 ±396.49), (638.96 ± 259. 48) ng · h · mL~(-1);t_(1/2) were(3. 72 ±0. 44), (3.57 ±0.48) h;V_z were (19. 39 ±7. 05), (23.82 ±11.43) L;CL were (3. 66 ± 1. 36), (4. 55 ± 1. 86) L · h~(-1) ;36 hour accumulative urine excretion rates were (4. 91 ± 1. 38) % , (2. 80 ± 0. 71 ) % , respectively. Conclusion The disposing process of A ingredient of aescinate and B ingredient of aescinate in healthy subjects were resemble, the elimination half life was about 3. 6 h, the accumulative urine excretion rate was low.

BACKGROUNDChronic intermittent hypoxia (CIH) is the most important pathophysiologic feature of sleep apnea syndrome (SAS). To explore the relationship between SAS and dementia, the effects of CIH on the expression of Nip3, neuron apoptosis and beta-amyloid protein deposit in the brain cortex of the frontal lobe of mice were evaluated in this study.

METHODSThirty male ICR mice were divided into four groups: control group (A, n = 10, sham hypoxia/reoxygenation), 2 weeks CIH group (B, n = 5), 4 weeks CIH group (C, n = 5), and 8 weeks CIH group (D, n = 10). The ICR mice were placed in a chamber and exposed to intermittent hypoxia (oxygen concentration changed periodically from (21.72 +/- 0.55)% to (6.84 +/- 0.47)% every two minutes, eight hours per day). Neuron apoptosis of the cortex of the frontal lobe was detected by means of terminal deoxy-nucleotidyl transferase-mediated in situ end labeling (TUNEL). Immunohistochemical staining was performed for measuring expression of Nip3 and beta-amyloid protein. The ultrastructure of neurons was observed under a transmission electron microscope.

RESULTSTUNEL positive neurons in each square millimeter in the cortex of the frontal lobe were categorized by median or Ri into group A (1, 5.5), group B (133, 13), group C (252, 21), and group D (318, 24). There were significant differences among the above four groups (P = 0.000). The significance test was performed between the control group and each CIH group respectively: group A and B (P > 0.05); group A and C (P < 0.01); and group A and D (P < 0.005). The number of apoptotic neurons kept increasing in the ICR mice under CIH condition, and reached the peak in the group D, but there was no significant difference between groups B and C, between groups B and D, and between groups C and D. Nip3 positive neurons in each square millimeter in the cortex of the frontal lobe in each group were calculated by median or Ri as follows: group A (2, 5.5), group B (117, 13), group C (227, 26.2), and group D (479, 21.4). There were significant differences among the four groups (P = 0.000). The statistical test was performed between the control group and each CIH group respectively: groups A and B (P > 0.05); groups A and C (P < 0.005); and groups A and D (P < 0.005). There was no significant difference between groups B and C, groups B and D, and groups C and D. The expression of Nip3 was closely correlated with neuron apoptosis in the brain (P < 0.05). The expression of beta-amyloid protein in the brain of mice was negative in all CIH groups and the control group. Ultrastructure observation showed karyopyknosis of nucleus, swelling of chondriosomes, deposit of lipofuscins and degeneration of neural sheath in all CIH groups but not in the control group.

CONCLUSIONThe results of this study indicate that CIH could up-regulate the expression of Nip3, and result in neuron apoptosis and ultrastructural changes in neurons of the frontal cortex.

Amyloid beta-Peptides ; metabolism ; Animals ; Apoptosis ; physiology ; Cerebral Cortex ; cytology ; metabolism ; ultrastructure ; Gene Expression Regulation ; Hypoxia ; physiopathology ; Immunohistochemistry ; In Situ Nick-End Labeling ; In Vitro Techniques ; Male ; Mice ; Mice, Inbred ICR ; Microscopy, Electron, Transmission ; Neurons ; cytology ; metabolism ; Proto-Oncogene Proteins ; metabolism

OBJECTIVETo explore the effect of hyperthermic intraoperative intraperitoneal chemotherapy (HIIC) on the postoperative metastatic rate and survival rate of advanced gastric cancer (AGC).

METHODSIn HIIC group, patients received HIIC (mitomycin C 30 mg and cisplatin 100 mg were added into 2000 ml distilled water, heated to 42 approximately 45 degrees C, perfused to abdominal cavity for 30 min and then sucked) and intravenous chemotherapy after operation (5- FU 10 approximately 15 mg/kg, mitomycin C 0.1 approximately 0.15 mg/kg, adriamycin 0.5 approximately 1 mg/kg i.v drip, once a week for 2 approximately 3 weeks). In control group, patients received intravenous chemotherapy only. The postoperative metastatic rate and survival rate (1- , 3- and 5- year) of patients were compared between 92 cases of AGC undergone HIIC and 120 cases of AGC without HIIC (control group).

RESULTSThe peritoneal recurrence rates after operations occurred within two years were 14.1% and 37.5% in HIIC group and control group respectively (P < 0.01). The 1- , 3- , and 5- year survival rates in HIIC group were 98.9%, 68.5%, and 52.2% and in control group 95.0%, 56.7% and 37.5% respectively. The 3- , and 5- year survival rates were significantly different between the two the groups (P < 0.05).

CONCLUSIONHIIC can kill isolated intraperitoneal cancer cells, reduce peritoneal recurrence rate after operations, raise significantly survival rate of patient, and improve the prognosis of AGC.

Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Chemotherapy, Cancer, Regional Perfusion ; Cisplatin ; administration & dosage ; Female ; Humans ; Hyperthermia, Induced ; Injections, Intraperitoneal ; Intraoperative Period ; Male ; Middle Aged ; Mitomycin ; administration & dosage ; Oxonic Acid ; administration & dosage ; Stomach Neoplasms ; therapy ; Young Adult

Objective To compare the value of bedside index for severity in acute pancreatitis (BISAP),Ranson score and Balthazar computed tomography severity index (CTSI) in predicting the severity and prognosis of acute pancreatitis (AP).Methods From 2005 to 2011 in Shanghai,the clinical data of 1004 AP cases from seven hospitals was collected and retrospectively analyzed.The value of BISAP score,Ranson score and Balthazar CTSI in predicting the severity and prognosis of AP were assessed with receiver operator characteristic (ROC) curve.Results Among 1004 patients,the main cause of AP was biliary disease (580 cases),about 57.77％.The incidence of pancreatic necrosis,mortality and SAP increased along with BISAP score.The risk of pancreatic necrosis in patients with CTSI ≥ three was significantly higher than that of ＜ three.The risk of pancreatic necrosis and SAP in patients with BISAP score ≥ two was significantly higher than that of ＜ two (OR:4.93,95％CI 3.62-6.70; OR 2.62,95％CI 1.59-4.31,respectively).There was no significant difference in the accuracy of predicting the progression and mortality of AP among these three score systems.However the sensitivity of BISAP score (OR:61.54,95％CI 35.09-87.99) in predicting the progression and mortality of AP was better than that of Ranson (OR:46.15,95 ％ CI 19.05-73.25) and CTSI (OR:46.15,95％CI 19.05-73.25).Conclusions BISAP score is easy to perform and when combined with CTSI,it helps to make the diagnosis and classification of AP in time,predict the prognosis accurately.Compared with Ranson score,BISAP score has higher clinical value.

OBJECTIVETo establish a ICP-MS method for the determination of heavy metals, including As, Hg, Pb, Cd, in four traditional Chinese medicines.

METHODThe samples were digested by closed-versel microwave. The four heavy metals were directly analyzed by ICP-MS. Select internal standard element in for the method by which the analyse signal drife is corrected by the signal of another element (internal standard elements) added to both the standard solution and sample.

RESULTFor all of the analyzed heary methals, the correlative coefficient of the calibration curves was over 0.999 2. The recovery rates of the procedure were 97.5%-108.0%, and its RSD was lower than 11.6%.

CONCLUSIONThis method was convenient, quick-acquired, accurate and highly sensitive. The method can be used for the quality control of trace elements in traditional Chinese medicines and for the contents determination of traditional Chinese medicines from different habitats and species.

Arsenic ; analysis ; Cadmium ; analysis ; Codonopsis ; chemistry ; classification ; Curcuma ; chemistry ; classification ; Ecosystem ; Gentiana ; chemistry ; classification ; Lead ; analysis ; Mass Spectrometry ; methods ; Mercury ; analysis ; Metals, Heavy ; analysis ; Plants, Medicinal ; chemistry ; Platycodon ; chemistry ; Quality Control ; Reproducibility of Results ; Sensitivity and Specificity

AIMTo identify protein spots on two dimentional protein electrophoresis (2DE) by post-source decay (PSD) technique associated with library search.

METHODSThe PSD-MALDI-TOF-MS method was set up by a segment of ACTH and a peptide digested by trypsin for TPA.

RESULTSTwo unknown protein spots on 2DE were identified as 40S ribosomal protein S12 and dnaK suppressor protein separately by established PSD-MALDI-TOF-MS method.

CONCLUSIONPSD technique has greater application prospects in peoteomics.

Adrenocorticotropic Hormone ; chemistry ; Amino Acid Sequence ; Databases, Protein ; Electrophoresis, Gel, Two-Dimensional ; Molecular Sequence Data ; Peptide Fragments ; chemistry ; Peptide Mapping ; Ribosomal Proteins ; analysis ; chemistry ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Tissue Plasminogen Activator ; chemistry