Objective To explore the prevalence and risk factors of hypertension among the residents aged over the 35 years old in Pinghu City.Methods A total of 3 300 residents aged over 35 years old from 1 0 villages (communities)in Pinghu City were selected by multi -stage stratified cluster sampling method,and were investigated via questionnaire survey, physical examination and laboratory tests.Results The prevalence rate of hypertension was 32.1 5%,and the standardized rate was 28.30%.Multi -variable logistic regression analysis showed that the major risk factors of hypertension included high age(OR =38.93),overweight(OR =1 .94)and obesity(OR =4.49),family history of hypertension(OR =5.61 ), hypertriglyceridemia(OR =1 .76),Normal weight(OR =0.54)and high education level (OR =0.40)were the protective factors.Conclusion The prevalence of hypertension among the residents aged over 35 years old in Pinghu City is at a high level.It is possible to take comprehensive intervention for hypertension focus on the different risk factors.

OBJECTIVETo investigate the inhibiting impact of 5'-deoxy-5-fluorouridine (5'-DFUR) on human colon carcinoma cell line LOVO after transfection of thymidine phosphorylase (TP) cDNA.

METHODSTP cDNA was transfected into human colon carcinoma cell line LOVO with lentiviral vector pLenti6.3_MCS_IRES2-EGFP, and the transfection efficiency was analyzed by flow cytometry. TP mRNA and protein expressions were detected by RT-PCR and Western blotting respectively. The IC50 of 5'-DFUR on TP-transfected LOVO and parental cell were evaluated by MTT assay. The volumes of 5-FU converted from 5'-DFUR in media, where TP-transfected and parental LOVO were cultured, were detected by HPLC.

RESULTSThe stable transfectants passed 5 generations were obtained and the transfection rate was 95%. Compared with parental cell, the RQ values of mRNA expression in TP-transfected LOVO was (282.5±86.8) folds higher significantly (P<0.01), also the TP protein expression of TP-transfected LOVO was obviously up-regulated as compared to parental cells. The IC50 value of 5'-DFUR of TP-transfectants was (1087.7±89.1) μmol/L, less than (1607.3±56.8) μmol/L of parental cells significantly (P<0.01), while there was no significant difference between parental cells and vector-transfectants [(1699.5±38.7) μmol/L, P>0.05]. HPLC revealed that when medium was added with 0, 500, 1000, and 2000 μmol/L of 5'-DFUR respectively, 0, 2.10, 3.13, and 7.19 μmol/L of 5-FU was found in the parental cells culture, while 0, 22.16, 30.94 and 40.02 μmol/L of 5-FU was found in TP-transfectants culture, but no 5-FU was found in the vector-transfectants culture.

CONCLUSIONTP cDNA transfection into LOVO can up-regulate the TP mRNA and protein expressions, increase the 5-FU converted from 5'-DFUR, and enhance the cytotoxic effect of 5'-DFUR on the LOVO cells.

Cell Line, Tumor ; Colonic Neoplasms ; pathology ; DNA, Complementary ; genetics ; Floxuridine ; pharmacology ; Humans ; Thymidine Phosphorylase ; genetics ; Transfection

OBJECTIVESTo study the diagnosis and treatment for the injury of cervical disc and longitudinal ligament.

METHODSFrom 2001 to 2005, the clinical data of sixty-three patients with cervical disc and longitudinal ligament injury were studied. Early treatment was done based on spinal cord injuries and spinal stabilities by X rays and MRI. Early operation was done in fifty-four cases and early non-operation in nine cases.

RESULTSThe follow-up time was six to forty-one months in all patients. The neurological recovery was found in two of eight complete SCI post-operation, thirty-one in thirty-nine incomplete SCI. Cervical collar or plaster orthotic were used in nine cases with four to six weeks. Evidence of instability was noted in four patients, who were operated with anterior decompression fusion. Neck chronic pain was found in two patients, anterior decompression and fusion was done in one with cervical spinal cord compression.

CONCLUSIONSMRI examination is the most value measure for the diagnosis of cervical disc and longitudinal ligament injury. Early anterior decompression and fusion was an important approach for cervical disc and longitudinal ligament injury.

Adolescent ; Adult ; Aged ; Cervical Vertebrae ; injuries ; surgery ; Decompression, Surgical ; Female ; Humans ; Intervertebral Disc ; injuries ; surgery ; Longitudinal Ligaments ; injuries ; surgery ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Retrospective Studies ; Spinal Fusion ; methods ; Spinal Injuries ; diagnosis ; therapy

OBJECTIVESTo study the change of ability to transform from 5'-deoxy-fluorouracil monophosphate (5'-DFUR) to fluorouracil (5-FU) in human colon cancer cell lines SW480 and LOVO which transfected with thymidine phosphorylase (TP) gene. And to discuss the anti-cancer activity of 5'-DFUR to SW480 and LOVO cells.

METHODSTP cDNA were transfected into human colorectal cancer cell lines SW480 and LOVO with the lentiviral vector, pLenti6.3_MCS_IRES2-EGFP. The transfection efficiency was analyzed by flow cytometer, the mRNA expression of TP was detected by RT-PCR, and the TP protein expression was detected by Western blot, and the volumes of 5-FU converted from 5'-DFUR both in 2 cells and medium were detected by high performance liquid chromatography (HPLC). The 50% inhibitory concentration (IC50) of 5'-DFUR on these 2 colon cancer cell lines both wild type and TP-transfected cells were evaluated by MTT assay.

RESULTSThe colorectal cancer cell lines SW480 and LOVO transfected with human TP cDNA were monitored 5 generations, and the transfections efficiency rate wea about 95%. Compared with wild type cell SW480 and LOVO, the RQ values of mRNA expression of SW480-TP and LOVO-TP were (695 ± 171) folds (t = -7.00, P = 0.002) and (282 ± 87) folds (t = -5.61, P = 0.030), respectively. Also TP protein expression in SW480-TP and LOVO-TP were higher than their parent cells shown by Western blot. The volume of 5-FU converted from 5'-DFUR in the medium cultured SW480-TP and LOVO-TP were increased compared with their parent cells, respectively (t = 19.406-66.921, P < 0.01), whereas few of 5-FU was detected both in wild, and TP-transfected cells. After transfected with TP cDNA, the IC50 of 5'-DFUR on SW480-TP and LOVO-TP were (587 ± 17) µmol/L and (1088 ± 89) µmol/L respectively, and there were significantly less than their parent cells (t = -32.59 and -8.52, P < 0.01).

CONCLUSIONSThe stabilized transfections of SW480 and LOVO with higher TP expression could be built with lentiviral vector. Transfected TP cDNA into SW480 and LOVO, could improve the expression both of TP mRNA and TP protein, increase the volume of 5-FU converted from 5'-DFUR in medium, and result in an enhancement of anticancer effect on these 2 cells.

Cell Line, Tumor ; Colonic Neoplasms ; pathology ; Floxuridine ; metabolism ; Fluorouracil ; metabolism ; Humans ; Thymidine Phosphorylase ; genetics ; Transcription, Genetic ; Transfection

Objective To investigate the effect of 10-week high-intensity intermittent training(HIIT) and maximum fat oxidation (FATmax)intensity training on body composition of female college students,and explore the difference between the 2 training types.Methods Thirty female college students were divided into an HIIT,an FATmax intensity training(FATmax)and a control(CON)group,each of 10.The HIIT and FATmax groups completed a 10-week high-intensity intermittent training and FATmax intensity continuous training with 90％ VO2 max and FATmax intensity respectively,while the CON group maintained the daily habitual behavior.The body weight,waist circumference,hip circumference and skinfold thickness of the triceps,midaxillary,chest,subscapular,abdomen,suprailiac and thigh were measured before and after the intervention.The body composition was evaluated using the Jackson/ Pollock seven-point method.Results The body max index(BMI),waist circumference,hip circumference and waist-hip ratio(WHR)decreased significantly in HIIT and FATmax groups after the 10-week training(P＜0.05),whereas the waist circumference and WHR of the CON group increased(P＜0.05).The decline rate of BMI,waist circumference,hip circumference and WHR of FATmax and HIIT groups were higher than that of the CON(P＜0.01),but there was no difference between the FATmax and HIIT groups.We further noticed no change in the bodyweight and body composition of the CON group,while a significant decrease in the bodyweight,fat percentage and fat mass (P＜0.001),but a significant increase(P＜0.01)in the lean body mass was observed in the FATmax and HIIT groups after the training.Ten weeks of HIIT significantly decreased the fat percentage and fat mass of the exercise groups compared with CON group(P＜0.05),and the rate of fat loss and lean body mass gain of the HIIT group was significantly higher than the FATmax group(P＜0.05).Moreover,the exercise intervention significantly decreased the skinfold thickness of the FATmax and HIIT groups(P＜0.001),but no changes in the CON group.Before the training,there was no significant difference in skinfold thickness among the three groups.However,after the training,the skinfold thickness of the chest,midaxillary,abdomen,suprailiac and thigh of the HIIT group was lower than CON(P＜0.05),and skinfold thickness of abdomen in HIIT group was lower than FATmax group(P＜0.05).Moreover,the decline rate of the skinfold thickness in the midaxillary,suprailiac,subscapular and thigh of the HIIT group was higher than the FATmax group(P＜0.05).Conclusion Both HITT and FATmax intensity continuous training of ten weeks sgnificantly improve the bodyweight,waist circumference,hip circumference and WHR without significant differences.Moreover,they both are effective in bettering the body composition and subcutaneous fat of female college students,with HITT superior to the FATmax intensity continuous training.

Objective To investigate the effects of dominant-negative truncation mutant?NTCF4, lacking the N-terminal form of TCF4 gene,on biological characteristics of renal cancer cell line GRC-I and explore the molecular mechanisms.Methods GRC-I cell was transfected with pCDNA3-?NTCF4 eukary- otie expression plasmid,pCDNA3 empty vector to construct the stable cell line GRC-I/?NTCF4 and GRC-I/ Mock respectively.The morphological changes of stable cells were observed and the cells growth curve was detected through light microscope.The cellular proliferation activities were determined using the MTT assay. The protein expression of Wnt pathway downstream target gene C-Myc and Cox-2 was evaluated by immuno- cytoehemieal method and Western Blot analysis.Results After the dominant-negative?NTCF4 gene was permanently expressed,the GRC-I/?NTCF4 stable cells morphologically showed that appearance changed from circular to long-spindle shape,growth rate decreased with less karyosehisis found,malignant pheno- types reversed to normal renal tubular cells.MTT assay revealed that the proliferation activities of GRC-1/?NTCF4 cells were inhibited by 11.2%-35.5% compared with GRC-I cells (P＜0.05),while the GRC- I/Mock cells have no difference with the control cells.Immunocytochemical analysis and Western Blot showed that the C-Myc and Cox-2 protein expression level of GRC-I/?ANTCF4 cells were significantly sup- pressed in comparison with that of GRC-I/Mock and GRC-I cells.Conclusions The dominant-negative truncation mutant?NTCF4 could partially inhibit the growth of renal cancer cells and down-regulate the pro- tein expression of Wnt pathway target gene C-Myc and Cox-2.These findings provide a experimental founda- tion for applying cell signal therapy to renal cell cancer by blocking the Wnt signaling pathway.

Objective To compare the clinical efficacy between Clamshell incision and bilateral posterolateral incision in the sequential double lung transplantation for end-stage lung disease. Methods Clinical data of 120 recipients undergoing double lung transplantation were retrospectively analyzed. All recipients were divided into bilateral posterolateral incision group (n=108) and Clamshell incision group (n=12) according to different surgical methods. Intraoperative parameters were collected and statistically compared between two groups, including operation time, amount of blood loss, amount of blood transfusion, use of extracorporeal membrane oxygenation (ECMO) or not, cold ischemia time on the first side, and cold ischemia time on the second side. Postoperative parameters were also compared between two groups, including the length of hospital stay, length of intensive care unit (ICU) stay, tracheal intubation duration, ECMO duration, forced vital capacity (FVC), forced expiratory volume in one second (FEV1), incidence of anastomotic stenosis, incidence of bronchopleural fistula, perioperative fatality, and 6-minute walk test for the first time after operation. Results In the Clamshell incision group, the amount of blood loss and blood transfusion was significantly higher than those in the bilateral posterolateral incision group (both P < 0.05). The proportion of ECMO and cold ischemia time on the second side in the Clamshell incision group were significantly lower or shorter than those in the bilateral posterolateral incision group (both P < 0.05). In the Clamshell incision group, the tracheal intubation duration and ECMO duration were significantly shorter compared with those in bilateral posterolateral incision group (both P < 0.05). Conclusions Both Clamshell incision and bilateral posterolateral incision are safe and effective in sequential double lung transplantation. Bilateral posterolateral incision approach can significantly reduce the amount of blood loss and blood transfusion of the recipients without significantly prolonging the operation time. Compared with bilateral posterolateral incision approach, the cold ischemia time of lung graft, tracheal intubation duration and ECMO duration are significantly shortened via the Clamshell incision.

OBJECTIVETo construct and screen the suppression subtractive hybridization (SSH) library of human renal cell carcinoma (RCC).

METHODSPoly A(+) RNA was isolated from RCC lines 786-O (tester) and renal cell (RC) lines HK-2 (driver), respectively. SSH procedure was performed according to the protocol of the PCR-Select cDNA Subtraction Kit (Clontech), and PCR products were cloned into pT-Adv vector and transformed E. coli TOP10F'. All positive clones picked out were digested and some of which were sequenced.

RESULTSThe SSH library contained 362 clones with SSH cDNA fragments distributed mainly from 0.3 to 0.9 kb. Among 50 clones sequenced randomly, 2 represented unknown genes and the other 48 derived from 36 known genes.

CONCLUSIONThe quality of the SSH library of human RCC is reliable and its construction is the basis for further screening differentially expressed genes of RCC.

Adenocarcinoma, Clear Cell ; genetics ; Cell Line, Tumor ; Gene Library ; Humans ; Kidney Neoplasms ; genetics ; Nucleic Acid Hybridization ; methods

OBJECTIVETo investigate the influence of the amount of portal blood stasis removal on endotoxemia and liver function after liver transplantation.

METHODSForty-seven patients who received liver transplantation from February 2006 to November 2007 were divided into 2 groups according to the amount of portal blood stasis removal during operation: group A (n = 26) 50 ml and group B (n = 21) 200 ml of portal blood stasis removal respectively. The levels of plasma endotoxin, D-lactate, tumor necrosis factor-alpha, interleukin-6, liver function and blood coagulation were examined and analyzed.

RESULTSUnder the condition of no significant difference in sex, age, primary liver diseases and Child-pugh's classification, cold ischemic time, total operation and anhepatic time, operation methods, volume of blood loss and transfusion, and all preoperative observations. Most of observations showed the restoration of the patients in group B was better than that in group A. The plasma levels of endotoxin, D-lactate, tumor necrosis factor-alpha, interleukin-6, alanine aminotransferase, aspartate aminotransferase, prothrombin time and activated partial thromboplastin time in group B were significantly lower than those in group A (P < 0.05). The level of plasma prealbumin in group B was significantly higher than that in group A (P < 0.05).

CONCLUSIONSThe removal of 200 ml portal blood stasis leads to a better results than that of 50 ml, and it can help alleviate endotoxemia and facilitate the restoration of the liver function after liver transplantation.

Adult ; Aged ; Bloodletting ; methods ; Endotoxemia ; prevention & control ; Female ; Humans ; Liver ; physiopathology ; Liver Transplantation ; Male ; Middle Aged ; Portal Vein ; surgery ; Postoperative Complications ; prevention & control ; Reperfusion Injury ; prevention & control

OBJECTIVETo study the protective effect of ischemic preconditioning (I-pre) and ischemic postconditioning (I-post) against ischemia/reperfusion (I/R) injury in rat's liver.

METHODSUsing rat model of hepatic segmental I/R injury, rats were divided into 5 groups: Group A (sham group), Group B (I/R injury), Group C (I-pre group), Group D (I-post group) and Group E (combined treatment of I-pre and I-post). Serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and myeloperoxidase (MPO) in hepatic tissues were determined, respectively. In addition, 7 days'survival of Groups B, C, D and E were evaluated.

RESULTSCompared with Group B, Groups C, D and E exhibited significantly decreased ALT and AST release, minimized tissue injury, suppressed values of MDA and MPO, increased activities of SOD, GSH-Px and GSH (P less than 0.05), as well as improved animal survival. The differences among Groups C, D and E were not statistically significant.

CONCLUSIONSI-pre, I-post and combined therapy of I-pre and I-post have protective effect against hepatic I/R injury, which is correlated with its function of reducing the production of reactive oxygen species, maintaining the activities of antioxidant systems and suppressing neutrophils recruitment. No additive effect can be obtained in Group E.

Alanine Transaminase ; blood ; Animals ; Aspartate Aminotransferases ; blood ; Ischemic Preconditioning ; Liver Diseases ; therapy ; Male ; Rats ; Reperfusion Injury ; prevention & control ; therapy