Objective To investigate whether angiotensin Ⅱ type 1 receptor(AT1R)gene polymorphism is associated with essential hypertension(EH). Methods A total of 200 hypertension patients and 192 normotensive controls were enrolled. The AT1R gene 1166A/C and -810A/T polymorphism were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-PFLP), and the association between the SNPs and the EH were analyzed statistically. Some biochemical index such as serum glucose (GLU) and total cholesterol (TC),triglyceride (TG), high density lipoprotein (HDL-C) and low density lipoprotein (LDL-C) were also measured. Results There was no significant difference between two groups of 1166A/C polymorphisms of AT1R gene(P ＞ 0.05 ). However, for the -810A/T polymorphism of AT1R gene, -810 AT and TT genotypes frequencies were significantly higher in EH patients than control (P = 0. 004). The -810T allele frequencies were higher in case than in control (22.5% vs. 11.5% ;P =0.000). We also found an association between EH and -810AT and TT genotypes by logistic regression analysis ( P = 0. 003 ), adjusted for other risk factors. The odds ratio was 2.57 (95% CI:1. 37 ～4. 84). Conclusions AT1R -810A/T polymorphism is associated with EH and -810T allele may be a risk factor of hypertension

Objective To investigate the effects of Helicohacter pylori infection on plasma lipid levels. Methods HpIgG was measured by ELISA in both 242 patients with coronary heart disease (CHD) and 88 subjects without CHD, and compared between these two groups. Then 242 patients with CHD were divided into HpIgG positive group and HpIgG negative group ,and total cholesterol (TC) ,triglyceride (TG) ,high density lipaprotein (HDL), low density lipoprotein (LDL), apolipoprotein A (ApoA) , apolipoprotein B (ApoB) were analyzed and compared between these two subgroups. Results The rate of seropositivity for HpIgG in CHD patients was significantly higher than that of controls (53.3 % vs. 38.6 %, P < 0.05), and HDL, ApoA level in HplgG seropasitive group was signif-icantly lower than that of HpIgG seronegative one (P < 0.05). However, there was no difference of TC, TC, LDL and ApoB between these two subgroups (P > 0.05). Conclusion Hp infection may be associated with CHD. It may pro-mote the pathogenesis of CHD through lowering serum HDL-C level.

Objective To study the pathogenic bacteria species and drug resistance rate in the intensive care unit(ICU)in county hospital to guide clinical rational use of antibiotics. Methods 263 various specimens were chosen from January 2013 to December 2013 in the ICU of Zigui County People's Hospital in Hubei Province,these were applied to perform the bacterial culture and identification,and disc AGAR diffusion method was used to test the in vitro drug susceptibility and observe the specimens distribution,pathogenic distribution and the rate of drug resistance. Results In the 263 specimens,the top three isolated were 131 sputum(49.8%),49 blood(18.6%) and 38 ascites specimens(14.4%)respectively,and the pleural effusion was the least isolated with 5(1.9%). A total of 125 strains bacteria were isolated with positive detection rate of 47.5%(125/263). In the 125 strains,80(64.0%) were Gram-negative(G-)bacilli at the pioneer position,and the top four were:Klebsiella pneumonia 23(18.4%), Acinetobacter Baumanni 19(15.2%),Escherichia coli 18(14.4%)and Pseudomonas aeruginosa 12 strains(9.6%). There were 33 strains(26.4%)of Gram positive(G+)cocci including mainly Staphylococcus aureus 25 strains(20.0%);fungi strains were 12,the least(9.6%). The drug resistance rates of the top four G- bacillus were as follows:the rate of Klebsiella pneumoniae to ampicillin sodium was the highest(100%),while its rate to imipenem,meropenem and ciprofloxacin was 0;the rates of Acinetobacter baumannii to tobramycin and ceftriaxone were very high(100%, 92.3%),while to imipenem,meropennem were much lower respectively(26.3%,15.4%);the rates of Escherichia coli to ampicillin sodium and piperacillin were relatively high(88.9%,83.3%),while the rates to amikacin,imipenem, meropennem respectively were 0;the rates of Pseudomonas aeruginosa to ceftriaxone,cefotaxime sodium were very high(both 100%),while the resistant rate to levofloxacin was 0. The G+ cocci had no drug-resistance to linezolid, teicoplanin and vancomycin;the rates of Staphylococcus aureus to azithromycin,clindamycin,erythromycin and penicillin were higher than 80%,and those of Excrement enterococcus to erythromycin,gentamycin,levofloxacin were also higher than 80%. Conclusions The ICU infection of our hospital is primarily respiratory tract infection, the pathogenic bacteria are mainly G- bacilli and the antibacterial drug resistance is very serious. Therefore it is necessary to monitor the trend of bacterial resistance closely,and according to the results of bacteria identification and drug susceptibility,the antimicrobial agents are reasonably chosen to effectively reduce and control the ICU hospital infection.

Humans ; Noise, Occupational ; adverse effects ; Occupational Exposure ; standards

The independent component analysis is a new method for signal processing, which has been paid attention to in the field of biomedical engineering. This paper introduces the design of biopotential analysis system based on ICA neural network and discusses its foundamental components.

Objective To investigate the impact of down-regulation of histone methyltransferase enhancer of zeste homolog 2 (EZH2) on RUNX3 expressions,proliferation and apoptosis in human pancreatic cancer.Methods The expressions of EZH2 and RUNX3 in 38 pancreatic cancer patients and human pancreatic cancer AsPC-1,PANC-1 and BxPC-3 cells were detected by immunohistochemistry and western blot,respectively.Cells were transfected with siEZH2 by lipofectamin 2000.Real time-PCR and western blot were used to detect EZH2 and RUNX3 expressions.Cell growth and apoptosis in vitro and vivo were assessed by MTT,flow cytometry and nude mice experiments,respectively.The correlation among the expressions of EZH2,clinical pathological features and overall survival rate were analyzed.Results Elevated EZH2 and decreased RUNX3 expressions were observed in human pancreatic cancer tissues and cells (P ＜ 0.05).Knockdown of EZH2 reduced cell growth and induced apoptosis in vitro and vivo by upregulating RUNX3 protein expression (P ＜ 0.05).In addition,the EZH2 expressions were correlated with tumor stage,lymph node metastasis and poor prognosis (P ＜ 0.05).Conclusions EZH2 expressions were correlated with malignancy and poor prognosis in pancreatic cancer.Tumor cell proliferation was promoted by EZH2 through down-regulation of RUNX3.EZH2 may be a potential therapeutic target for pancreatic cancer.

Objective To observe the clinical efficacy of comprehensive muscle-region therapy based on Chuang Medicine in treating cervical spondylosis of neck type.Method A hundred patients with cervical spondylosis of neck type were randomized into a treatment group and a control group, 50 cases in each group. The treatment group was intervened by the comprehensive muscle-region therapy based on Chuang medicine (muscle-region tuina, fire-needle acupuncture of Chuang medicine, and cupping), while the control group was by regular acupuncture treatment. The Visual Analogue Scale (VAS) score and symptoms and signs scores were observed before and after intervention, and the clinical efficacies were compared.Result The VAS scores respectively after 1 and 2 treatment courses were significantly different from that before intervention in the treatment group (P<0.05,P<0.01). The VAS score after 2 treatment courses was significantly different from that before intervention in the control group (P<0.05). After 2 treatment courses, the VAS score in the treatment group was significantly different from that in the control group (P<0.05). After treatment, the symptoms and signs scores (pain intensity, pain-affected area, number of tender points, limited motion, and general score) were significantly different from that before intervention in the treatment group (P<0.01, P<0.05). In the control group, the pain intensity, limited motion and general score after treatment were significantly different from that before intervention (P<0.05,P<0.01). After treatment, the symptoms and signs scores in the treatment group were significantly different from that in the control group (P<0.05,P<0.01). The total effective rate was 100.0% in the treatment group versus 84.0% in the control group, and the difference was statistically significant (P<0.05).Conclusion Comprehensive muscle- region therapy in Chuang medicine is an effective approach in treating cervical spondylosis of neck type.

Sirt3 is a kind of nicotinamide adenine dinucleotide (NAD+)-dependent deacetylases.Sirt3 is localized in mitochondria and has been involved in a wide range of mitochondrial biological functions, such as nutrient oxidation、ATP generation, reactive oxygen species (ROS) detoxification and mitochondrial homeostasis.Sirt3 plays an important role in the occurrence and development of cardiovascular diseases.Increased expression of Sirt3 gene has been associated with extended lifespan of humans.

[Summary] SIRT3 is a member of the silent information regulator 2 ( Sir2) family, located in the inner mitochondrial membrane, with a strong effect of deacetylation. SIRT3 not only modulates energy metabolism, cell apoptosis, tumor growth, anti-aging etc. , but also plays an important role in the field of cardiovascular diseases. In this review, we summarize recent findings related to SIRT3 with metabolic syndrome and cardiac hypertrophy, to provide a theoretical basis for the further study on the potential role of SIRT3 in cardiovascular diseases.

ObjectiveTo present the innovative transurethral resection of the distal ureter and bladder cuff by Holmium laser and to compare the perioperative and oncological outcomes following nephroureterectomy using three different methods of managing the distal ureter and bladder cuff.Methods From January 2000 to December 2010,162 patients underwent excision of the distal ureter and bladder cuff by transurethral Holmium laser (32 cases,Group A),transurethral electric resection (51 cases,Group B) or open procedure (79 cases,Group C) combined with open or retroperitoneal laparoscopic nephroureterectomy.5 French ureteral balloon catheter was inserted into the targeted ureter to prevent possible microscopic tumor seeding.The therapeutic effectiveness,perioperative complications,postoperative recovery and oncologic outcomes were compared among groups.The follow-up time was 3 -96 months.ResultsGroup A and B showed statistically significant better results on the operative time (203.6 ± 31.5 min and 207.2 ±24.3 min),blood loss ( 127.4 ± 63.2 ml and 135.0 ± 82.7 ml) and postoperative hospital stay (5.8 ± 1.3d and 5.6 ±1.2 d) than those of Group C (248.0 ±42.9 min,484.5 ±217.7 ml,8.7 ±3.5 d),respectively ( P ＜ 0.01 ).Six cases of obturator nervous reflex occurred in Group B,with 3 cases of bladder peroration and 2 conversions to open procedure.There were no difference in bladder tumor occurrence,retroperitoneal recurrence,tumor cell seeding and cancer-specific survival among the 3 groups.ConclusionsOur data have validated the superiority of transurethral approach over conventional open procedure including perioperative index,recovery and comparable oncologic outcomes with open group.Holmium laser demonstrated better results including fewer complication,cleaner surgical vision and operating accuracy than that of electric resection.Transurethral Holmium laser resection of the distal ureter and bladder cuff has been proved to be a technically innovative minimally invasive and oncological safe method.