Objective To study the role of chromoendoscopy with toluidine blue to diagnose gastric cancer and precancerous change.Methods572 cases were randomized into two groups.288 cases in testing group took gastroscopy with 0.1% toluidine blue sprinkles,while ordinary gastroscopy was applied in 284 cases of control group.We took biopsy in all of those cases for pathology examination.The biopsy was taken from heterochrome area if heterochrome area appeared in testing group,otherwise from suspected affection.ResultsDetection rate of gastric cancer of test groups(9.72%)was higher than that of control groups(5.28%).Both of the methods were significantly different(P

Objective To analyze the relationship between nursing work environment and nurses′work values of tertiary public hospitals in Tianjin ,and provide a scientific basis for the development of nurses′work values. Methods The sample was 1 875 clinical nurses from 7 tertiary public hospitals in Tianjin, and investigated with Practice Environment Scale (PES) and Work Values Scale. Results The score of nurses′ work values and each dimension(material work values, affective work values,cognitive work values) were different in different level of work environment,betterwork environments>mixedwork environments>poorwork environments(F=121.528, 38.555, 86.834, 136.816,P<0.01). The nursing work environment was positively correlated with work values(r=0.127-0.423, P<0.01). Foundation for quality of care and leadership of the head nurse could predict the nurse work values, and could explain 16.9%of the nurse work values(F=191.315,P<0.01). Conclusions By improving nursing work environment, especially in foundation for quality of care and leadership of the head nurse,can promote the development of nurses′work values.

Objective To prepare an active anti-tumor component, compound K (C-K), from saponins in leaves of Panax notoginseng (SLPN) using immobilized β-glucanase. Methods Two entrapments, alginate gel-1 (Alg 1) and alginate gel-2 (Alg 2), were evaluated for their ability to immobilize β-glucanase. The amount and purity of C-K obtained from the transformation process were analyzed by HPLC, and the immobilizing parameters were optimized. Results β-Glucanase can be immobilized and reused with either of the entrapment. However, using AIg 1 resulted in higher enzyme activity than Alg 2. The optimal concentration of the immobilized enzyme was 10%; The optimal crosslinking time was 4-6 h; and the optimal concentration of the crosslinking agent was 6%-7%. Conclusion Immobilized β-glucanase shows sustained enzyme activity, good ethanol tolerance, and was reusable for the preparation of C-K from SLPN.

Objective To observe the clinical short-and long-term curative effect of the surgical treatment of female stress urinary incontinence (SUI) with tension-free vaginal tape-obturator (TVT-O) treatment,and discuss the safety of the operation and postoperative quality of life.Methods The data were collected from 130 patients with SUI who were underwent TVT-O treatment.The patients'perioperative period,follow-up of postoperative complications,and comparison of the quality of life before and after surgery were analyzed retrospectively.Results A total of 130 patients was successfully completed their surgeries with a mean operative time (47.01 ± 18.82)min,average blood loss (64.38 ±99.62)ml,mean catheterization (2.67 ±0.90)d,and the average length of stay (4.73 ±2.14)d.A total of 101 cases was completed the postoperative follow-up with (a) preoperative quality of life in patients with ⅡQ-7 score 6 to 21 points and an average of (15.74 ± 3.87) min,(b) symptoms of lower urinary tract UDI-6 score of 3 to 22 minutes and the average (10.51 ± 3.70) min,(c) postoperative quality of life improved significantly ⅡQ-7 score from 0 to 21 points and an average of (1.59 ±4.37)points,and (e) UDI-6 score 0 to 14 points and an average of (1.63 ± 2.66)points.A total of 73 patients (72.3％) had the postoperative urinary incontinence,which subjective symptom were completely cured,significant improvement was 11 cases (10.9％),ineffectiveness was 6 cases (5.9％),pad using was 13 patients (12.9％),vaginal mesh exposure and erosion was 2 patients(2.0％),the sexual life postoperatively was affected in 8 patients (7.9％).Conclusions TVT-O treatment of SUI is not only easy to operate but also has clinically high security,few complications,low recurrence rate,and significantly improved patients' living quantities.However,patch compli cations can not be ignored and need further discussion.

Objective To investigate the memory monitoring ability in patients with hepatolenticular degeneration(HLD) and explore the mechanism of their memory impairment.Methods The feeling-of-knowing (FOK) paradigm of episodic memory(EM) and semantic memory(SM)were established and subsequently applied to 30 HLD patients and 30 healthy control(HC) participants who were matched in age and educational level.Results Compared with healthy control group (FOK-EM recall (64.17 ± 29.21) ％ ; FOK-SM recall (84.72 ± 11.44)％),the FOK-EM recall((26.55±20.92)％) and FOK-SM recall((53.93±28.42)％) in HLD patients were significantly lower(t=-5.140,P＜0.01 ; t=-5.123,P＜0.01).The positive judgment and correct recognition of FOK-EM ((50.64±29.43) ％) and the negative judgment and correct recognition of FOK-EM((12.80± 18.32) ％) in the HLD group were significantly different from the HC group (the positive judgment and correct recognition of FOK-EM:(75.15±31.73)％ and the false judgment and correct recognition of FOK-EM:(1.81±5.41)％; t=-2.693,P＜0.05 ; t=3.026,P＜0.01).Most importantly,the stroop effect was positively correlated with the negative judgment and correct recognition of FOK-EM in HLD group(r=0.601,P＜0.01).Conclusion The results show that the HLD group underestimate their memory performance on episodic FOK,and the impairment of memory monitoring is positively correlated with the deficit of executive function,indicating that the prefrontal impairment can be an influential factor of memory disorder in HLD,whereas the unimpaired semantic metamemory FOK indicates the episodic and semantic metamemory monitoring may depend on different neural network.

The daily management of medical equipment in the shelter hospital of CAPF was explored, and some measures were put forward including completing administration, determining responsibilities, improving supervising system, creating management tools, strengthening application for military and civilian uses, enhancing professional awareness and etc. The problems were solved in the discrepancies between construction and management, application and maintenance as well as training and daily service, so that the equipment was improved in efficiency, service life, metrology and stability. References may be provided for the shelter hospital or other medical units of CAPF for daily management of medical devices.

OBJECTIVE:To establish a method for simultaneous residual determination of dichloromethane and ethyl acetate in bisacodyl raw material. METHODS:Head-space GC was performed on the capillary column of 6% cyanopropyl phenyl-94% di-methyl polysiloxane(DB-624)by temperature programming,the temperature of injector was 220 ℃,detector was flame ionization detector with temperature of 250 ℃,carrier gas was high purity nitrogen with the flow rate of 3.0 ml/min,split ration was 1∶10, headspace heating temperature was 70 ℃,equilibration time was 30 min,volume of headspace vial was 5 ml,and the injection volume was 1 ml. RESULTS:The linear range was 6-120μg/ml for dichloromethane(r=0.999 9)and 50-1 000μg/ml for ethyl ac-etate(r=0.999 9);the limit of quantitation was 0.2,1.7 μg,limit of detection was 0.06,0.5 μg;RSDs of precision,stability and reproducibility tests were no higher than 3%;recoveries were 100.30%-102.00%(RSD=0.63%,n=9) and 100.10 %-101.30%(RSD=0.44%,n=9). CONCLUSIONS:The method is simple and accurate,and can be used for the simultaneous residual deter-mination of dichloromethane and ethyl acetate in bisacodyl raw material.

Breast Neoplasms ; Female ; Humans ; Plasma Cells ; Plasmacytoma

Objective To prepare 5-aminolevulinic acid (ALA) and hematoporphyrin monomethyl ether (HMME) hydrogel suppositories and to evaluate their photosensitizer transfer efficiencies in rectal tumor tissue.Methods The BALB/c mice implanted SW837 rectal cancer cells subcutaneously were randomly divided into four groups:intrarectal suppository administration group,cutaneous administration group,intratumoral injection group and intravenous injection group.Fluorescence spectrophotometry was used to measure the concentration of protoporphyrin Ⅸ (PpⅨ) and HMME in rectal wall,skin and tumor tissue.The distribution of photosensitizer was determined by a fluorescence spectroscopy system.Results The concentration of PpⅨ in the ALA suppository administration group was 9.76 times (1 h) and 5.80 times (3 h) higher than that in the cutaneous administration group,and the differences were statistically significant (all P＜0.05).The maximal penetration depth of ALA in tumor tissue was about 3-6 mm at 2 h after the cutaneous administration.After the HMME suppository administration,the concentration of HMME in the rectal wall was very low.The maximal penetration depth of HMME in tumor tissue was less than 2 mm after the cutaneous administration.Conclusions ALA is more likely to penetrate mucosal barrier compared to skin tissue.The hydrogel suppository based rectal administration is expected to be a new administration method for the rectal cancer photodynamic therapy using ALA.

Foreign Bodies ; diagnosis ; Glottis ; Humans ; Infant