Objective To observe the cyclooxygenase-2(COX-2) expression of gastric tumor tissue ,and to study the relationship between cagA + Helicobacter pylori(Hp cagA+ ) infection and COX-2 .Methods 42 specimens of gastric cancer tissue (including gastric carcinoma ,paracancerous hyperplastic tissue and paracancerous normal gastric mucosa ) in our hospitals from January 2010 to August 2011 were collected and detected the Hp cagA expression by PCR .Results The COX-2 protein positive rate in the gas-tric tcancer tissue was significantly higher than that in the paracancerous hyperplastic tissue and normal gastric mucosa (P<0 .01) . Among 42 cases of gastric cancer specimens ,Hp cagA+ was in 25 cases ,Hp cagA - was in 17 cases .The COX-2 protein positive rate was 88 .0% (22/25) in the Hp cagA+ group and 35 .3% (6/17) in the Hp cagA - group .The COX-2 protein positive rate in the Hp cagA+ gastric tissue was significantly higher than that in the Hp cagA - gastric tissue(P<0 .01) .Conclusion Abnormal ex-pression of COX-2 exists in gastric tcancer tissue ,cagA+ Helicobacter pylori infection may promote the occurrence and development of gastric cancer by regulating the expression level of COX-2 .

Objective To explore an algorithm to define the threshold value for tumor contouring on 18F-fluorodexyglucose (FDG) PET imaging. Methods A National Electrical Manufacturing Association (NEMA)NU 2 1994 PET phantom with 5 spheres of different diameters were filled with 18F-FDG. Seven different sphere-to-background ratios were obtained and the phantom was scanned by Discovery LS 4. For each sphere-to-background ratio, the maximum standardized uptake value ( SUVmax ) of each sphere, the SUV of the border of each sphere ( SUVborder ), the mean SUV of a 1 cm region of background (SUVbg) and the diameter (D) of each sphere were measured. SPSS 13.0 software was used for curve fitting and regression analysis to obtain the threshold algorithm. The calculated thresholds were applied to delineate 29 pathologically confirmed lung cancer lesions on PET images and the obtained volumes were compared with the volumes contoured on CT images in lung window. Results The algorithm for defining contour threshold is TH% = 33.1% + 46.8% SUVbg/SUVmax + 13.9%/D ( r = 0.994) by phantom studies. For 29 lung cancer lesions, the average gross tumor volumes ( GTV ) delineated on PET and CT are ( 7.36 ± 1.62 ) ml and (8.31 ±2.05) ml, respectively (t = -1.26, P＞0.05). Conclusion The proposed threshold algorithm for tumor contouring on PET image could provide comparable GTV with CT.

Humans ; Accidents, Traffic ; Automobile Driving ; Risk Factors

OBJECTIVETo study the effect of ultrafiltration-membrane extracts of Radix Rehmanniae Praeparata (UMERRP) on theproliferation and genetic stability of bone marrow-derived mesenchymal stem cells (BMSCs) induced by cadmium chloride (CdCl2).

METHODSProtective effects on the proliferation, micronuclear rates, chromosome aberration rates, and apoptosis rates were observed by micronuclei test, karyotype analysis, and flow cytometry.

RESULTSCompared with the CdCl2 group, UMERRP with different molecular weights at 0. 8 g/L could obviously promote the proliferation (P <0. 05). Compared with the control group, micronuclear rates, chromosome aberration rates, and apoptosis rates were obviously enhanced in the CdCl2 group (P <0. 05). Compared with the CdCl2 group, UMERRP with different molecular weights could obviously decreased CdCl2 induced micronuclear rates, chromosome aberration rates, and apoptosis rates (P <0. 05). Of them, BMSC micronuclear rates and chromosome aberration rates decreased most obvious in UMERRP groups with molecular weight below 10 000 (P <0. 05). The apoptosis rate decreased most obviously in UMERRP groups with molecular weight ranging 100 000 and 200 000 (P <0. 05).

CONCLUSIONUMERRP could reduce CdCl2 induced micronuclear rates, chromosome aberration rates, and apoptosis rates.

Apoptosis ; Bone Marrow ; Cadmium Chloride ; toxicity ; Drugs, Chinese Herbal ; pharmacology ; Flow Cytometry ; Hematopoietic Stem Cells ; Humans ; Mesenchymal Stromal Cells ; Ultrafiltration

Usung gatufloxacun ( GTFX) as template molecule, magnetuc surface molecularly umprunted polymers ( M-MIPs) were prepared on the surface of modufued magnetuc suluca ( Fe3 O4@SuO2 ) wuth surface molecular umpruntung technuque. The polymers were characteruzed by transmussuon electron mucroscopy ( TEM ) and vubratung sample magnetometer ( VSM ) . The statuc adsorptuon experuments and Scatchard analysus suggested that there were two types of bundung sutes un the M-MIPs. The maxumum adsorptuon capacutues of M-MIPs and magnetuc non-umprunted polymers ( M-NIPs) for GTFX were 35. 1 mg/g and 23. 1 mg/g, respectuvely. The selectuvuty coeffucuents of GTFX M-MIPs to cuprofloxacun (CPFX), norfloxacun (NFLX), melamune (MEL) and tetracyclune (TC) were 2. 43, 5. 18, 6. 61 and 12. 99, and the relatuve selectuvuty coeffucuents of M-MIPs to M-NIPs for these four drugs were 2. 09, 1. 95, 3. 15 and 2. 43, respectuvely, unducatung the good specufuc recognutuon capabuluty for GTFX. Combuned wuth hugh performance luquud chromatographuc analysus, the M-MIPs were applued to extract and enruch GTFX un mulk sample wuth the recoverues more than 91 . 5%.

Objective To detect the existence of vasculogenic mimicry in hepatocellular carcinoma (HCC). Methods In this study 42 patients with a total of 47 HCC nodules underwent radical resection.Histological and immunohistochemical double staining of CD31 and PAS were applied to observe the existence of vasculogenic mimicry ( VM ). Reverse tanscription PCR (RT-PCR) were applied to study the expression of VE-cadherin, EPHA2 and MMP-2 genes. Results VM was found in 16 of the 42 (38. 1% )HCC cases. The typical forms of VM in the microscope are vessel-like structure formed by tumor cells,without endothelial cells and the PAS-positive looping pattern. The existence of VM in HCC correlates to a higher Edmondson grade, higher capacity of intrahepatic disseminating and poorer tumor-free survival time (P＜ 0. 05). Comparing the difference of VE-cadherin gene, EPHA2 gene and MMP-2 gene expression between VM positive nodes and in VM negative nodes by RT-PCR method demonstrated that VE-cadherin gene, EPHA2 gene and MMP-2 gene have a more intense expression in VM positive nodes than in VM negative nodes ( P ＜ 0. 05 ). Conclusion VM exists in human hepatocellular carcinoma. VM occurred more frequently in higher malignant HCC and predicts a higher rate of tumor recurrence and poorer prognosis.

Objective To explore the effect of spinal 360°circumferential resection decompression combined with bone cement fill-separation and pedicle screw fixation instrumentationb for patients suffering from spinal metastases.Methods Retrospectively analyzed the clinical data of 42 patients suffering from spinal metastases and underwent spinal 360°circumferential resection decompression combine with bone cement fill-separation and pedicle screw fixation instrumentation in our hospital from April 2012 to October 2016.The pain level were assessed by visual analogue scale(VAS),the functional impairment was classified by Karnofsky score(KPS) and the neurologic deficit was evaluated by Frankel grade before preoperation,1 week after operation and 3 months after operation.Results Through the following-up of 3 months,there was no neural symptoms relapse in primary segment.The VAS score was (0.57 ±0.79) points,and the KPS was (72.61 ± 19.12) points 3 months after operation,which were significantly improved compared with the data before operation (P ＜ 0.05).The VAS score improvement rate was (91.09％ ±13.73％),and the Frankel grade improvement rate was 80％.Conclusion Circumferential resection decompression combined with bone cement fill-separation and pedicle screw fixation instrumentationb for patients suffering from spinal metastases can effectively improve the neural symptoms and life-quality of patients and prevent neural symptoms relapsing in primary segment after operation.

N-Benzyl matrinol was obtained by hydrolysis, benzylation and reduction reaction from matrine. A series of hybrids (8a-8n) from (phenylsulfonyl)furoxan and N-benzyl matrinol were synthesized and biologically evaluated as anti-hepatocellular carcinoma agents. All target compounds were evaluated for anti-proliferative activity against human hepatocellular Bel-7402, SMMC-7721, Bel-7404, and HepG2 cells in vitro by MTT method. The results indicated that all of these compounds had potent anti-proliferative activity which were more potent than their parent compound and 5-FU, especially 8a-8h and 8j showed the strongest anti-HCC HepG2 cell activity with IC50 values of 0.12-0.93 μmol x L(-1).
Antineoplastic Agents ; pharmacology ; Carcinoma, Hepatocellular ; Fluorouracil ; Hep G2 Cells ; Humans ; Liver Neoplasms ; Oxadiazoles ; pharmacology

OBJECTIVETo explore changes of B and T lymphocyte attenuator (BTLA), superoxide dismutase (SOD), catalase (CAT), total antioxidant capacity (TAOC), reactive oxygen species (ROS), reactive nitrogen species (RNS), malondialdehyde (MDA) in ankylosing spondylitis (AS) patients, and the effect of Xinfeng Capsule (XFC) on them.

METHODSTotally 120 AS patients were assigned to two groups according to random digit table method, the XFC group (3 XFC pills each time, 3 times a day) and the SASP group (4 SASP tablets each time, twice a day), 60 in each group. All patients were treated for 3 months. Another 60 healthy subjects were recruited as a healthy control group. The expression frequency and activation levels of BTLA were detected using flow cytometry. Serum oxidative stress indices (such as SOD and CAT, TAOC, ROS, RNS, MDA) and contents of cytokines [tumor necrosis factor α (TNF-α), IL-1β, IL-4, and IL-10] were detected using enzyme-linked immunoassay (ELISA). Erythrocyte sedimentation rate (ESR) was detected using Westergren method. High-sensitivity C-reactive protein (Hs-CRP) was detected using HITACHI 7060 type automatic biochemical analyzer. Clinical efficacies of ASAS 20 and BASDAI50 were assessed using VAS. Correlation analysis between scoring for quality of life and BTLA expression frequency was performed.

RESULTS(1) Clinical efficacies of ASAS 20 and BASDAI50 were significantly better in the XFC group than in the SASP group (P < 0.01). (2) Compared with the healthy control group, BTLA expressions in the peripheral blood of AS patients decreased significantly (P <0. 05); SOD, CAT, and TAOC values significantly decreased (P < 0.01, P < 0.05); ROS, RNS, and MDA values significantly increased (P < 0.01, P < 0.05); TNF-α, IL-1β, ESR, and Hs-CRP values significantly increased (P < 0.01); IL-4 and IL-10 values decreased significantly (P < 0.01, P < 0.05). (3) Compared with pre-treatment in the same group, BTLA/CD19 + B, BTLA/CD24 + B, SOD, TAOC, IL-4, SF-36 [physical functioning (PF), social functioning (SF), role limitation due to physical problems (RP), role limitation due to emotional problems (RE), body pain (BP), mental health (MH), vitality (VT), general health (GH)] were significantly elevated; ROS, MDA, TNF-α, ESR, Hs- CRP, VAS, BASDAI and BASFI, BAS-G were significantly lower in the peripheral blood of the two groups after treatment (P < 0.01, P < 0.05). Better effect was shown in the XFC group in elevating BTLA/CD19+ B, BTLA/CD24 + B, SOD, TAOC, IL-10, BP, MH, VT, and SF; and lowering ROS, IL-1β, MDA, TNF-α, ESR, Hs-CRP, VAS, BASDAI, BASFI, and BAS-G (P < 0.01, P < 0.05). (4) Pearson correlation analysis showed, BTLA/CD19 + B expression of the peripheral blood was positively correlated with SOD, CAT, TAOC, IL-4, IL-10, GH, RP, BP, and SF (r = 0.431, 0.325, 0.318, 0.316, 0.348, 0.314, 0.358, 0.318, 0.326, respectively, P < 0.05, P < 0.01), while it was negative correlated with ROS, MDA, TNF-α, IL-1β, ESR, VAS, and BASDAI (r = -0.342, -0.368, -0.334, -0.354, -0.324, -0.372, -0.342, respectively, P < 0.05, P < 0.01). BTLA/CD24 B expression of the peripheral blood was positively correlated with SOD, TAOC, IL-4, IL-10, GH, RP, BP, SF, RE, MH, VT (r = 0.358, 0.352, 0.372, 0.436, 0.435, 0.326, 0.352, 0.345, 0.326, 0.343, 0.332, respectively, P < 0.05, P < 0.01), while it was negative correlated with ROS, RNS, MDA, ESR, Hs-CRP, VAS, BASDAI, and BASFI (r = -0.447, -0.336, -0.405, -0. 395, -0. 358, -0.436, -0.338, -0.425, respectively, P < 0.05, P < 0.01).

CONCLUSIONXFC could improve BTLA expression in the peripheral blood of AS patients, negatively regulate activation and proliferation of B cells, and reduce abnormal immune responses and oxidative stress injury, thereby effectively alleviating joint stiffness and pain.

B-Lymphocytes ; physiology ; Blood Sedimentation ; C-Reactive Protein ; metabolism ; Capsules ; Catalase ; metabolism ; Cytokines ; Drugs, Chinese Herbal ; administration & dosage ; therapeutic use ; Flow Cytometry ; Humans ; Interleukin-10 ; metabolism ; Interleukin-1beta ; metabolism ; Interleukin-4 ; metabolism ; Malondialdehyde ; metabolism ; Oxidative Stress ; Quality of Life ; Reactive Oxygen Species ; Spondylitis, Ankylosing ; drug therapy ; Superoxide Dismutase ; metabolism ; T-Lymphocytes ; physiology ; Tumor Necrosis Factor-alpha ; metabolism

OBJECTIVE To investigate enhanced immune function of methionine encephalin (MENK) and its anti-tumor mechanism in CT26 colon cancer mouse model. METHODS 3×106 CT26 cells were implanted subcutaneously in BALB/c mice. Four days after, MENK was peritoneally administrated at the concentration of 20 mg·kg-1 for 14 d. The percentage of MDSCs in bone marrow, spleen, blood, tumor and liver were detected by flow cytometry. Non- esterified fatty acid (NEFA), triglycerides (TG) and total cholesterol (T-CHO) in liver homogenate were tested by a NEFA test kit, a TG test kit and a T- CHO test kit respectively. qRT- PCR and Western blot were used to measure mRNA and protein levels of inflammation-, glycometabolsim- and lipometabolsim-associated indexes in liver. RESULTS MENK decreased percentages of MDSCs in bone marrow, spleen, blood and tumor in colon cancer mice. MENK-treated mice displayed elevated ratio of CD4+T and CD8+T cells in spleen as well as increased T and B lymphocytes proliferation. Meanwhile, MENK also ameliorated liver damage reflected by lower levels of GPT and GOT in serum and reduced risks of cancer- associated index including inflammation, high lipid and high glucose. Furthermore, MENK lowered down the levels of NEFA, TG and T- CHO in liver homogenate. MENK treatment decreased expression of p- STAT3, increased expression of p-AKT, IRS1 and Glut4 at protein level as well as reduced lipogenesis-associated genes and elevated glycolysis-associated genes in liver of tumor bearing mice. Also, abated expression of genes associated with MDSCs generation (M-CSF, GM-CSF, IL-6, IL-1β) and migration (S100A9, KC) was observed within shrunken subcutaneous tumor by MENK intervention. CONCLUSION MENK has the ability to strength immune function against colon cancer by reducing MDSCs and improving liver metabolism.