This study aimed to assess the relationship of OAS2 rs739901 5'-flanking C/A polymorphisms with the susceptibility to Enterovirus-71 (EV71) infection.We investigated 294 hand-foot-mouth disease (HFMD) Chinese children with EV71 infection (165 mild cases and 129 encephalitis cases).The improved multiplex ligation detection reaction (iMLDR) technique was used to test the genotypes.In EV71-infected patients,the CA genotype distribution (P=0.007),A allele frequency (OR 1.32,95％ CI 1.0-1.7,P=0.034)and CA+AA carriage frequency (P=0.003) of OAS2 rs739901 5'-flanking were obviously elevated as compared with controls,but there were no statistically significant differences between mild cases and encephalitis cases.In EV71-infected patients,the counts of white blood cells (P=0.034) and blood glucose concentrations (P=0.042) were raised in A carriers (CA+AA).Among different genotypes of encephalitis cases,the contents of cerebrospinal fluid (CSF) showed no significant differences.IFN-γ levels in EV71-infected patients were higher than those in controls (mild group vs.control group,P＜0.01;encephalitis group vs.control group,P＜0.001).In encephalitis cases,IFN-γ levels were reduced (P＜0.05) in A carriers compared to CC genotype,however,there were no significant differences between genotypes CA and AA (P=0.226).These findings suggest that OAS2 rs739901 5'-flanking C/A genetic polymorphisms involve the susceptibility to EV71 infection,and A allele might be a risk factor of the susceptibility to EV-71 infection.

OBJECTIVETo compare the effects of felodipine combined irbesartan regimen with that of felodipine combined metoprolol regimen on the sexual function in male hypertensive patients.

METHODOne hundred and twenty-three male hypertensive patients (age 25 to 60) were randomly assigned to felodipine (5 mg/d) plus irbesartan (150 mg/d, n = 64) group and felodipine (5 mg/d) plus metoprolol (47.5 mg/d, n = 59) group. Dosage of felodipine were doubled after 4 weeks if the blood pressure were > or = 140/ 90 mm Hg (1 mm Hg = 0.133 kPa). At the baseline and post 24th week treatment, sexual function of patients was assessed by the International Index of Erectile Function (IIEF) Questionaire. Serum testosterone (T), sex hormone binding globulin (SHBG), 4-hydroxynonenal (HNE), 8-hydroxy-2'-deoxyguanosine (8-OHdG) and Malonaldehyde (MDA) were measured by Radioimmunoassay (RIA), ELISA and TBA respectively.

RESULTSTotal prevalence of erectile dysfunction (ED), T, SHBG and HNE were similar between pre- and post-treatment in two groups (P > 0.05). On the other hand, the scores of the mild ED and sexual desire (SD) were improved and both serum 8-OHdG and MDA in patients with ED decreased [(146.02 +/- 60.54) ng/L vs. (139.89 +/- 62.03) ng/L, P = 0.048 and (6.59 +/- 1.75) micromol/L vs. (5.51 +/- 1.65) micromol/L, P = 0.039] in Felodipine plus Irbesartan group.

CONCLUSIONThe results suggested that Felodipine + Irbesartan regimen may be superior to Felodipine + metoprolol regimen for male hypertensive patients with mild ED.

Adult ; Antihypertensive Agents ; administration & dosage ; therapeutic use ; Biphenyl Compounds ; administration & dosage ; therapeutic use ; Drug Therapy, Combination ; Erectile Dysfunction ; chemically induced ; physiopathology ; Humans ; Hypertension ; drug therapy ; physiopathology ; Male ; Metoprolol ; administration & dosage ; therapeutic use ; Middle Aged ; Penile Erection ; drug effects ; Tetrazoles ; administration & dosage ; therapeutic use

OBJECTIVETo assess the value of color Doppler ultrasound in evaluating the mesenteric lymph nodes in healthy children.

METHODSThe mesenteric lymph nodes were examined with color Doppler ultrasonography for 730 randomly selected healthy children under 14 years of age, including 410 boys and 298 girls who did not report any recent medical conditions.

RESULTSAbdominal lymph node detection rate was higher in boys than in girls. Abdominal lymph nodes were detected most often in children between the ages of 1 and 4 years, and the lymph node size decreased gradually with age.

CONCLUSIONColor Doppler ultrasonography is valuable for evaluating abdominal lymph nodes in children.

Child ; Female ; Humans ; Lymph Nodes ; diagnostic imaging ; Male ; Mesentery ; diagnostic imaging ; Ultrasonography, Doppler, Color

OBJECTIVETo investigate the protective effect of Yigan Fuzheng Paidu Capsules (YC) combined with medical ozone against hepatic injury in dogs induced by hepatotoxic drug.

METHODSTwenty-four dogs were randomized equally into 4 groups (n=6), namely the model group, oleanolic acid tablet (OAT) group, YC group and YC+O(3) group, given either no particular treatment, oral OAT at 10 mg/day, oral YC at 0.2 g/day, or YC at 0.2 g/day plus 150 ml medical ozone transrectal insufflation every other day, respectively, for totally 30 consecutive days. Acute hepatic injury was induced after the treatment in the dogs with a sing-dose intraperitoneal injection of 0.9 ml/kg CCl(4) and peanut oil mixture (1:1, W/W). The general condition, survival time, alanine aminotransferase (ALT), aspartate aminotransferase/alanine aminotransferase (AST/ALT), serum total bilirubin (TBIL), prothrombin time (PT), blood ammonia (AMMO), and blood urea nitrogen (BUN) were recorded or measured. The hepatic pathological changes were observed upon death or on day 15 following CCl(4) injection.

RESULTSCompared with the other 3 treatment protocols, YC plus O(3) showed favorable effects on the activity, mental state, diet, urination and defecation of the dogs, which had significantly higher survival rate and higher levels of ALT, TBIL, PT, and AMMO than the model and OAT groups (P<0.05). AST/ALT remained normal in YC+O(3) group, which had also milder hepatic injury than the other 3 groups.

CONCLUSIONSYC combined with medical ozone may decrease transaminase and blood ammonia levels, relieve jaundice, prolong the survival time of dogs with CCl(4)-induced hepatic injury.

Alanine Transaminase ; blood ; Ammonia ; blood ; Animals ; Aspartate Aminotransferases ; blood ; Bilirubin ; blood ; Blood Urea Nitrogen ; Capsules ; Carbon Tetrachloride ; toxicity ; Dogs ; Drug Therapy, Combination ; Female ; Liver ; drug effects ; pathology ; Liver Diseases ; blood ; etiology ; prevention & control ; Male ; Medicine, Chinese Traditional ; Oxidants, Photochemical ; therapeutic use ; Ozone ; therapeutic use ; Survival Analysis

OBJECTIVETo investigate the value of in vivo proton magnetic resonance spectroscopy (MRS) in the assessment of hepatocellular carcinoma (HCC) and monitor its metabolic change shortly after transcatheter arterial chemoembolization (TACE).

METHODSIn this prospective study, 28 consecutive patients with large HCC (> or = 3 cm in diameter) confirmed by fine needle aspiration biopsy were recruited. The 1H MRS of all hepatic lesions and some uninvolved liver parenchyma were performed with 1. 5T whole body MR scanner. Among them, 15 cases were evaluated again about one week after TACE. The main metabolites such as choline and lipid before and after interventional therapy were measured to assess the early response of the tumor.

RESULTSThe technical success rate of 1H MRS in liver was high (33/41, 80%), closely related to breath motion, location of lesion, and size of voxel. In spectra, the choline compound peak of HCC elevated compared with uninvolved liver parenchyma. After TACE, both the amplitude and the area of choline resonance peak significantly descended (choline-to-lipid ratios from 0.352 +/- 0.080 to 0.167 +/- 0.030, P = 0.026; from 0.205 +/- 0.060 to 0.070 +/-0.020, P = 0.042, respectively); yet lipid resonance peak ascended.

CONCLUSIONSIn vivo 1H MRS is technically feasible for the evaluation of large focal hepatic lesions, however, the reproducibility and stability are not as good as routine MR scan. 1H MRS can monitor the early stage metabolic changes of HCC after TACE but limitation like quantification still exists.

Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; administration & dosage ; Carcinoma, Hepatocellular ; diagnosis ; therapy ; Chemoembolization, Therapeutic ; Cisplatin ; administration & dosage ; Doxorubicin ; administration & dosage ; analogs & derivatives ; Female ; Humans ; Liver ; pathology ; Liver Neoplasms ; diagnosis ; therapy ; Magnetic Resonance Spectroscopy ; methods ; Male ; Middle Aged

OBJECTIVETo explore the specificity of anti-phosphotyrosine monoclonal antibody PY20 in bcr-abl+ cells and its possible clinical applications.

METHODSBcr-abl cell lines( K562, MEG-01) and bcr-abl- cells lines( Jurkat, MCF-7 )were stained with PY20. Phosphotyrosine protein of K562 and MEG-01 cells was detected by flow cytometry before and after treatment with imatinib. Phosphotyrosine protein in bone marrow cells from 49 patients with chronic myeloid leukemia (CML), Ph+ acute lymphoblastic leukemia(Ph(+) -ALL), Ph- ALL, acute myeloid leukemia (AML-M1, M2, M3, M5, FAB classification), chronic lymphocytic leukemia (CML) and 3 normal donor. Positive cells over 5% of total cells was considered positive cases for phosphotyrosine protein. The level of tyrosine phosphorylation was determined by median fluorescence intensity (MFI).

RESULTSBcr-abl cell lines and marrow cells from 10 CML patients and 8 ALL patients were all PY20-positive, while bcr-abl- cell lines and marrow cells from 18 leukemia patients and 3 normal donor were all PY20-negative. MFI decreased remarkably after blocked by imatinib in K562 cells and MEG-01 cells. The positive cell percent of marrow cells from 10 newly diagnosed CML patients and 9 imatinib-sensitive CML patients was (54.20 +/- 19.82)% and (14.84 +/- 6.17)% (P < 0.05), while that of 2 cases of imatinib-resistant was 64.3% and 57.2%. There was significant difference of MFI between imatinib-resistant patients and imatinib-sensitive patients (99.42 +/- 4.87 vs 46.41 +/- 4.67, P < 0.01).

CONCLUSIONPY20 monoclonal antibody is highly specific for bcr-abl+ cells. It might be useful in rapid detection of bcr-abl+ cells and sensitivity to imatinib of CML patients.

Antibodies, Monoclonal ; analysis ; Bone Marrow Cells ; metabolism ; Flow Cytometry ; Fusion Proteins, bcr-abl ; analysis ; Humans ; K562 Cells ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; metabolism ; Leukemia, Myeloid, Acute ; metabolism ; Phosphotyrosine ; analysis ; immunology

OBJECTIVETo compare the effects between felodipine plus irbesartan and felodipine plus metoprolol regimen on blood pressure and the sexual function in young and middle-aged hypertensive women.

METHODSIn this prospective, randomized, parallelized, controlled and fixed combined therapy trial, 99 female patients (aged 18 to 60) with grade 1 and grade 2 hypertension (BP ≥ 140/90 mm Hg and < 179/109 mm Hg, 1 mm Hg = 0.133 kPa) were assigned to felodipine 5 mg q.d + irbesartan 150 mg q.d (F + I group, n = 49) and felodipine 5 mg q.d + metoprolol 47.5 mg q.d (F + M group, n = 50) group. Target blood pressure was < 140/90 mm Hg. The female sexual function index (FSFI) questionnaire, levels of serum estradiol and testosterone were assessed. Female sexual dysfunction was defined as a FSFI score of less than 25.5. Patients were followed up for 24 weeks.

RESULTSThe rate of achieving blood pressure goal between 2 groups was similar at the 4th, 8th, 12th and 24th weeks respectively (42.9% vs. 62.0% at 4th week, 89.8% vs. 90.0% at 8th week, 93.9% vs. 94.0% at 12th week, 98.0% vs. 96.0% at 24th week, P > 0.05). Compared to baseline, scores for the items related to "desire" and "arousal" were significantly improved (P < 0.05), the level of the serum estradiol was significantly elevated [(50.3 ± 37.4) pg/L vs. (54.4 ± 10.8) pg/L before menopause, (18.4 ± 2.9) pg/L vs. (20.2 ± 3.1)pg/L after menopause, P < 0.05] and the level of the serum testosterone was significantly decreased [(722.8 ± 277.1) ng/L vs. (650.0 ± 156.0) ng/L before menopause, (841.2 ± 279.3) ng/L vs. (761.9 ± 197.8) ng/L after menopause, P < 0.05] in the F + I group, while scores for the items related to "sexual desire" and "lubrication" were statistically reduced (P < 0.01), the concentration of the serum estradiol was significantly reduced [(57.4 ± 9.7) pg/L vs. (51.1 ± 12.1) pg/L before menopause, (19.8 ± 2.3) pg/L vs. (17.8 ± 3.3) pg/L after menopause, P < 0.01] and the level of the serum testosterone was significantly increased [(775.6 ± 217.8) ng/L vs. (886.0 ± 186.4) ng/L before menopause, (812.5 ± 311.3) ng/L vs. (914.4 ± 300.2) ng/L after menopause, P < 0.01] in the F + M group. FSFI score was negatively correlated with age and systolic blood pressure levels.

CONCLUSIONfelodipine plus irbesartan or metoprolol for 24 weeks equally reduced blood pressure and the former regimen is superior to the latter on sexual function improvement in this patient cohort.

Adolescent ; Adult ; Antihypertensive Agents ; therapeutic use ; Biphenyl Compounds ; pharmacology ; therapeutic use ; Felodipine ; pharmacology ; therapeutic use ; Female ; Humans ; Hypertension ; drug therapy ; Metoprolol ; pharmacology ; therapeutic use ; Middle Aged ; Prospective Studies ; Sexual Dysfunction, Physiological ; Tetrazoles ; pharmacology ; therapeutic use ; Young Adult

OBJECTIVETo examine the role of Polo-like kinase 1(PLK1) in the migration and invasiveness of human colorectal cancer cells.

METHODSNine colorectal cancer cell lines were cultured. Cell lines with the highest level of PLK1 expression was selected by PCR and Western blot. Three siRNA oligo segments targeting PLK1 were designed and selected cell lines transfected. Successful transfection was confirmed using real-time PCR and Western blot. Changes in migration and invasiveness of the selected cell line were evaluated by Transwell test.

RESULTSColorectal cancer cell line SW1116 was selected with the highest expression of PLK1 at both mRNA level and protein level. The expression of PLK1 in SW1116 was reduced by the three siRNA oligo segments to varying degrees, and the No.1 siRNA oligo segment was the most efficient. In migration test, the number of cells crossing through chambers in PLK1-siRNA group was 44 ± 14, which was lower than that in the negative control group (242 ± 40) and in blank control group(240 ± 38). In invasion test, the number of cells crossing through chambers in PLK1-siRNA group was 62 ± 3, which was lower than that in negative control group (207 ± 12) and in blank control group (211 ± 15). These differences were statistically significant(P<0.01).

CONCLUSIONPLK1 silencing by siRNA may inhibit the migration and invasiveness of colorectal cancer cells, suggesting that PLK1 might play an important role in the infiltration and metastasis of colorectal cancer.

Cell Cycle Proteins ; genetics ; metabolism ; Cell Line, Tumor ; Cell Movement ; Colorectal Neoplasms ; metabolism ; pathology ; Humans ; Neoplasm Invasiveness ; Protein-Serine-Threonine Kinases ; genetics ; metabolism ; Proto-Oncogene Proteins ; genetics ; metabolism ; RNA, Small Interfering ; genetics ; Transfection

BACKGROUNDTumstatin is a novel endogenous angiogenesis inhibitor which is widely studied using purified protein. The current study evaluates the antiangiogenic effects of tumstatin-overexpression plasmid in vitro, reveals the mechanism underlying the vascular endothelial cell growth inhibition and searches for a novel method administering tumstatin persistently.

METHODSThe eukaryotic expression plasmid pcDNA-tumstatin encoding tumstatin gene was constructed and transfected to human umbilical vein endothelial cell ECV304 and human renal carcinoma cell ACHN. Expression of tumstatin in the two cell lines was determined by RT-PCR and Western blotting. Vascular endothelial cell proliferation was assessed by CCK-8 assay and cell cycle was analyzed by flow cytometry. To investigate the mechanism by which pcDNA-tumstatin inhibited vascular endothelial cell proliferation in vitro, cyclin D1 protein was detected by Western blotting.

RESULTSDNA sequence confirmed that pcDNA-tumstatin was successfully constructed. RT-PCR and Western blotting indicated that tumstatin could express in the two cell lines effectively. After tumstatin gene transfer, ECV304 cell growth was significantly inhibited and the cell cycle was arrested in G1 phase. And Western blotting showed that pcDNA-tumstatin decreased the level of cyclin D1 protein.

CONCLUSIONSOverexpression of tumstatin mediated by pcDNA 3.1 (+) specially inhibited vascular endothelial cells by arresting vascular endothelial cell in G1 phase resulting from downregulation of cyclin D1 and administration of tumstatin using a gene therapy might be a novel strategy for cancer therapy.

Autoantigens ; genetics ; metabolism ; Blotting, Western ; Cell Cycle ; genetics ; physiology ; Cell Line ; Cell Line, Tumor ; Cell Proliferation ; Collagen Type IV ; genetics ; metabolism ; Endothelial Cells ; cytology ; metabolism ; Flow Cytometry ; Humans ; Plasmids ; genetics ; Reverse Transcriptase Polymerase Chain Reaction

OBJECTIVETo determine the influence of hand-sewn and stapler in distal pancreatectomy on the postoperative complication.

METHODSClinical data of 109 patients after distal pancreatectomy from January 2003 to December 2006 were analyzed retrospectively.

RESULTSThe surgical techniques used for closure of the pancreatic stump after distal pancreatectomy were categorized into hand-sewn closure group (n = 53) and stapler closure group (n = 56). In stapler closure group, 25 patients accepted laparoscopic operation. The incidences of abdominal infection and pancreatic fistulae in stapler closure group were lower than hand-sewn closure group. The operation time, blood infusion, postoperative bleeding and medical costs were similar between two groups.

CONCLUSIONStapler closure in distal pancreatectomy could decrease the incidence of pancreatic fistula and abdominal infections.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Male ; Middle Aged ; Pancreatectomy ; adverse effects ; instrumentation ; methods ; Pancreatic Fistula ; etiology ; prevention & control ; Pancreatic Neoplasms ; surgery ; Postoperative Complications ; prevention & control ; Retrospective Studies ; Surgical Staplers ; Surgical Wound Infection ; prevention & control ; Young Adult