Numerous studies showed that Helicobacter pylori (HP) infection and gastric cancer have a correlation, which is a important factor to influence the development of gastric cancer, with scholars' intensive research, it is found that the way of HP acting on gastric cancer is complicated and diverse, this review summarizes the role of HP in mechanism, correlation factor and action way of gastric cancer.

Objective To explore the effect of pre-operation intestinal preparation by orally taking magnesium sulfate of different concentrations. Methods 50 patients were divided into the high-concentration group and the low - concentration group, according to the concentration of magnesium sulfate orally taken for pre-operation intestinal preparation. Some factors were compared between the two groups including: the acting amount of water, starting and lasting timing of magnesium sulfate, times of stool, the efficiency of the intestinal preparation, the tolerance, uncomfortable reaction and changes of serum electrolyte of the patients. Results There were no difference between the two groups on the acting amount of water, starting and lasting timing of magnesium sulfate, times of stool, the efficiency of the intestinal preparation, the tolerance of the patients. The rate of the stool without solid substance was higher in the high-concentration group than the low-concentration group(40% vs 8%). The uncomfortable reaction rate was also higher in the high-concentration group, the concentration of serum electrolyte decreased in both groups, among which serum Ca2+ decreased significantly in the low-concentration group. Conclusions Orally taking magnesium sulfate of different concentrations both has effect on bowel preparation, influence on patients' serum electrolyte is remarkable.

The evolution and different functions of central health administrative organs in different historical periods of China was described in order to fill the gaps in research of their history.

【Objective】To observe the influence of hot-needle therapy and herbal medicine fuming-washing combined with western medicine for the treatment of rheumatoid arthritis(RA).【Methods】One hundred and twenty-eight RA patients were equally randomized into two groups: group A received hot-needle therapy and herbal medicine fuming-washing combined with western medicine of meloxicam,salazosulfamide,and methotrexate,and group B was treated with western medicine only.The treatment lasted one month.Symptoms and signs of early morning stiffness time,grip strength,joints with tenderness count,tenderness index,auricular rest pain,swollen joints count,swelling index as well as the evaluation by the patients themselves and the doctors were observed before and after treatment.Meanwhile,the changes of rheumatoid factor(RF),C-reactive protein(CRP),erythrocyte sedimentation rate(ESR),the white blood cell(WBC) count and platelet(PLT) count were evaluated before and after treatment.【Results】The total effective rate in group A was 78.1%,which was superior to 53.1% in group B(P

OBJECTIVE:To establish a method for determination of ionization equilibrium constant of sildenafil using ultraviolet spectrophotometry.METHODS:Methanol solutions of sildenafil with pH values of 2.26,8.56,9.31,9.83 and 12.38 were respectively scanned at the wavelength within the range of 200nm～400nm.The absorbability and pKa value of sildenafil were determined at the selected wavelength of 280,287,290,295 and 297nm respectively.RESULTS:The pKa value of sildenafil was 9.35?0.02.CONCLUSION:The present method is convenient and practicable.

Penile erection (PE) is a physiological phenomenon involving complex mechanisms. PE may occur as reactive erections, psychogenic erections in the conscious state and spontaneous erections during the sleep. Sleep-related PE refers to the erections occurring spontaneously during the sleep with rapid eye movement. Studies have shown a correlation between sleep and PE as well as between sleep disorders and erectile dysfunction but not yet revealed the exact mechanisms. This paper updates the relationship between sleep and erectile function.
Erectile Dysfunction ; etiology ; Humans ; Male ; Penile Erection ; physiology ; Sleep ; physiology ; Sleep Wake Disorders ; complications ; Sleep, REM ; physiology

Objective To evaluate the effectiveness of a newly designed modular flexible ureteroscope with holmium laser lithotripsy for the treatment of renal calculi based. Methods 40 patients were treated with modular flexible ureteroscopic lithotripsy (German Polydiagnost) with holmium laser. 40 patients were treated by traditional flexible ureteroscopic lithotripsy. Their therapeutic effects were compared. Results For modular flexible ureteroscopic lithotripsy group, 37 patients underwent successful operation, with lithotripsy with operation time of (86.0 ± 34.4) min and postoperative hospital stay of (5.3 ± 1.6) days. No severe complication including ureteral perforation, high fever or severe bleeding occurred. One month after the operation, KUB and B-ultrasonography showed complete stone free in 35 patients. Residual calculi (0. 4 cm in diameter) in the calyces were found in 2 patients. Medication and postural drainage therapy were applied. Two weeks later , KUB and B-ultrasonography showed that the residual stones have been removed completely. There was no significant differences in stone size , operation time, rate of calculus clearance, the incidence of postoperative complications, operating time and duration of postoperative hospitalization between the traditional flexible ureteroscopic lithotripsy group and modular ureteroscopic lithotripsy group. Conclusions The modular flexible ureteroscope is effective and safe in treating reanl calculi. It has similar surgical efficacy as traditional flexible ureteroscope , but is more costly effective in terms of maintenance costs.

Objective To study the influence of artifical liver support system (ALSS) on bone marrow stem cell (BMSC) differentiation factors in patients with chronic severe hepatitis B.Methods Fifty patients with chronic severe hepatitis B were divided into ALSS treatment group (n=25) and control group (n=25).The patients in control group received combined medical treatment and those in ALSS treatment group received ALSS treatment within 1 week of admission on the basis of combined medical treatment.The concentrations of hepatocyte growth factor(HGF),fibroblast growth factor-4 (FGF-4),epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) were detected before and 2 weeks after therapy.The data were analyzed by t test.Results The serum levels of HGF,FGF-4,EGF and bFGF of patients before ALSS treatment in treatment group were (689.10± 337.68) ng/L,(124.88±87.67) ng/L,(323.85±44.40) ng/L and (9.29± 1.38) ng/L,respectively; while the levels of those cytokines after ALSS treatment were (1081.50±356.66) ng/L,(110.76±79.71) ng/L,(347.80±71.73) ng/L and (9.57±1.15) ng/L,respectively,among which HGF level increased significantly after ALSS treatment (t =10.042,P＜0.01) and was higher than control group(t=6.670,P＜0.01).However,the levels of HGF,FGF-4,EGF and bFGF were not significantly different from those in the control group.And levels of all HGF,FGF-4,EGF and bFGF in control group were not statistically different before and after treatment.ConclusionALSS treatment can increase the serum HGF level but not FGF-4,EGF and bFGF,which may contribute to BMSC transdifferentiation that is involved in the hepatocyte repair and regeneration in chronic severe hepatitis B.

Objective To investigate the value of covered self expending metallic stent in the treatment of malignant esophageal stricture. Methods Thirty two patients with dysphagia due to malignant esophageal obstructions, esophagobronchial and anastomotic stenoses were undergone inserting self expending metallic stents. The procedure was done under fluoroscopic guidance. Sixteen patients underwent radiotherapy and (or) chemotherap after the procedure. All patients underwent esophagography before and after the stent placement, and were followed up to death. Results Thirty two stents were placed in 32 patients without any technical failures, and dysphagia was reduced considerably after stent placement. The recurrence of stenosis ( 6.3% vs 54.5% , P

The imbalance between histone acetylation and histone deacetylation can lead to the inactivation of suppressor genes and the activation of oncogenes by influencing transcription. Based on this, researchers found that HDAC inhibitors can induce prostate cancer cells growth arrest, differentiation and apoptosis. This review summarizes the advance research of histone deacetylase inhibitors in treatment of prostate cancer.