Physical activity is limited in maintenance hemodialysis (MHD) patients, and higher level of physical activity may result in less risk of death, milder depression or ahypnosis, less fatigue and better quality of life. Physical activity may relate with many factors. MHD patients may be benefited from exercise to improve the physical activity, mainly with aerobic exercise and resistance training during hemodialysis. Nurses can do more in health education and direction of exercise for MHD patients.

Female ; Humans ; Hyperthyroidism ; drug therapy ; etiology ; Infant, Newborn ; Male

Objective To study the prevalence of health risk behaviors among the junior high school students.Methods An anonymous questionnaire survey was conducted among a stratified sampling of 1 200 students from six junior high schools to study the health risk behaviors occurred during the last year.Results The leading risk behaviors were lacking sports exercises(47.92%),violating traffic regulation(31.58%),fleeing the home(4.08%),suicide(1.83%),addicted to drugs(0.75%).Conclusion Multiple health risk behaviors exist among junior high school students.We should develop effective measures to prevent these dangerous behaviors and improve students' health.

Objective:To study the mechanism of effect of miR-21 via Wnt/β-catenin signaling pathway in human A549 lung cancer cells and Lewis lung carcinoma in mice. Methods:The effect of miR-21 on A549 cells were detected by MTT method. MiR-21 expression levels were overexpressed or inhibited in A549 cells by transfecting with miR-21 mimics or inhibitors. Correlation among key molecules (Wnt1,β-catenin, CyclinD1 and miR-21) of mRNA and protein levels in Wnt/β-catenin signaling pathway were studied by Real-time PCR and Western blot hybridization assay. Invasive ability of A549 cells was determined via Transwell chamber cell invasion assay;the role of miR-21 in A549 cells was explored via the Wnt/β-catenin signaling pathway. A Lewis lung carcinoma animal model was established to detect miR-21 expressions in tumor animals and controlled animal tissues, and verify expression changes of the above moleculesin the Wnt/ β-catenin signaling pathway was determined in the animal level. Results:MTT assay results showed that miR-21 overexpression could markedly enhance cell absorbance value;that is, miR-21 could increase the ability proliferation of A549 cells.β-catenin and CyclinD1 expression levels were significantly higher in miR-21 mimic transfected cells (P<0.05), and Wnt1 gene had no significant change. Wnt1,β-catenin and CyclinD1 gene expression showed no significant change when miR-21 expression was suppressed, compared with controls. After cells were transfected with miR-21 mimics, cell invasion assay revealed that the perforated cells was significantly higher than the perforated cells in the control group (P<0.01). Lewis lung assay revealed that miR-21 expression levels in the Lewis lung carcinoma were significantly higher;and at the same time, Wnt1,β-catenin and CyclinD1 gene expression levels were significantly increased, compared to controls. Conclusions: In A549 human lung cancer cells and Lewis lung carcinoma in mice, key moleculesβ-catenin and CyclinD1of miR-21 expressions and the Wnt/β-catenin signaling pathway are positively correlated.

ObjectiveTo investigate the mechanism for the curative effect of douching with nasal sinuses perfusate in treating chronic sinusitis after endoscopic sinus surgery.MethodsSeventy-six chronic sinusitis patients after endoscopic sinus surgery were divided into treatment group and control group by random digits table with 38 cases each.Every group was given postoperatively sinus flush,treatment group was flushed with nasal sinuses perfusate,while contro group was flushed with 0.9％ sodium chloride.Therapeutic effect was evaluated after two months.The therapeutic effects of the two groups were compared and the inflammation factor levels and changes of sinus mucosa were observed before and after treatment.ResultsIn treatment group,there were 21 cases to be cured,13 cases to be improved,4 cases to be useless,the total effective rate was 89.5％(34/38),while in control group,there were 12 cases to be cured,15 cases to be improved,11 cases to be useless,the total effective rate was 71.1％(27/38),the total effective rates between two groups were statistically significant(P ＜0.05).The levels of interferon (IFN)-γ,interleukin(IL)-2,IL-4,IL-5 after treatment in treatment group were respectively ( 13.21 ± 1.38),( 14.59 ±1.43 ),(34.83 ± 5.31 ),( 39.93 ± 7.98 ) pg/L,which were significantly decreased compared with those before treatment [ (23.87 ± 1.76),( 16.13 ± 1.71 ),(67.37 ± 7.36),(81.82 ± 7.69) pg/L,P ＜ 0.05 ].The levels of IFN- γ,IL-2,IL-4,IL-5 after treatment in control group were respectively (20.13 ± 2.73 ),( 14.82 ± 2.26),(48.92 ±7.62),(43.87 ±8.25) pg/L,which were significantly decreased compared with those before treatment [ (24.06 ± 1.82 ),( 15.96 ± 1.74),(66.81 ± 8.24),(82.16 ± 7.34) pg/L,P ＜ 0.05 ].And the levels of IFN- γ,IL-4,IL-5 after treatment in treatment group were significantly lower than those in control group,the differences were statistically significant(P ＜ 0.05).ConclusionsThat nasal flush with nasal sinuses perfusate for postoperative patients with chronic sinusitis after endoscopic sinus surgery may improve the therapeutic effect and nasal sinuses perfusate formula is superior to 0.9％ sodium chloride alone,and the mechanism may be related to inhibition of inflammation factor release of sinus mucosa.

Using immunohistochemical method in the present study we examined the changes of the CGRP-LI nerve fibers in the anterior pituitary (AP) of the rat after adrenalectomy. 60 male adult rats were divided into 5 groups at random, i.e., normal, sham-operated, adrenalectomized (AdX) plus hydrocortisone, normal plus hydrocortisone and AdX groups. There were some of CGRP-LI nerve fibers sparsely and unevenly distributed in the normal rat AP. The fibers which had some varicosities and varied in their thickness could occurred either individually or in plexus. The quantity of CGRP-LI nerve fibers increased in number, length, branches and the density of the varicosities. The extent of their distribution was also enlarged. With a Leitz computer-assisted image analyzer the quantity of the CGRP-LI nerve fibers in the 5 groups was measured and the results showed that the amount of CGRP-LI nerve fibers in AdX group was significantly higher than those in all the other groups (P

AIM:To optimize the technical parameters indica-daisy dropping pill(Flos chrysanthemi indici) through controlling the influencing factors. METHODS:To take weight variation of pills,comprehensive quality and disintegration time limited as index,the above factors were observed by orthogonal test. RESULTS:Good technological parameters of indica-daisy dropping pill were as follows PEG6000∶PEG400=54∶6 as matrix,dimethicone as refrigerant.Temperature of drug fluids of 70 ℃,internal and external diameter of dropper within 6.2 mm and 9.0 mm,proportion of drug and matrix(1∶3),30 dropping per minute.The weight variation of pills was small,type quality was good and disintegration time limited was short.The water absorbability was smaller than that of granules. CONCLUSION:The finished products are of good quality and appropriate for mass production.

Objective To study the occurrence of BRCA1 MSI in endometrial cancer and its relationship with clinic pathologic features; to explore the correlation between MSI and protein expression in BRCA1 gene. Methods Application of PCR-SSCP and DNA sequence analysis method was used to study D17S579 and D17S1349 in 49 sporadic endometrial cancer tissues, 20 cases with endometrial atypical hyperplasia and 28 cases with normal endometrial tissues. Results In the total samples of D17S579 and D17S1349, the three groups were significantly different: 34.69%(17/49) in the endometrial cancer group, 10%(2/20) in the endometrial atypical hyperplasia group and 7.14%(2/28) in the normal endometrium group (χ2= 11.208, P = 0.004). BRCA1 MSI positive rate related to the pathology grade and clinical stage, but no relationship was found in muscular infiltration depth, lymph node metastasis and histopathology types. In the endometrial cancer group, BRCA1 MSI positive rate and BRCA1 protein expression were in moderate correlated negatively (r = -0.779, P = 0.000). Conclusion BRCA1 MSI might play a role in the development of endometrial cancer, and low expression of BRCA1 protein. BRCA1 MSI might be associated with pathology grade and clinical stages in EC.

Background Conventional chemical method to fix the entire eyeball results in the edema of retinal nerve fiber layer and therefore influent the evaluation of tissue structure.Research showed that microwave irradiation can avoid this phenomenon. Objective This study was to investigate the appropriate energy and time duration of microwave irradiation for fixation of rabbit eyes specimen and compare the influence of different fixation methods on retinal structure. Methods Twenty-two New Zealand white rabbits were sacrificed by using venous air embolism.The eyeballs were enucleated from the rabbits and immersed in chemical reagents with glacial acetic acid,methyl aldehyde and chloroform for 2 days as the control group.The eyeballs were immersed in 400 ml physiological balance solution immediately,and then were fixed by microwave irradiation for 80,160,240 and 320 seconds under the lower power as the microwave irradiation groups.In the microwave irradiation+chemical fixation group,the specimens were immersed in chemical reagents for 1-2 hours after the microwave radiation.The morphology of retinal structure was examined and area of retinal detachment was calculated by hemotoxylin and eosin staining under the light microscope. Results A better fixation effect was obtained in the retinal section of microwave radiation for 240 seconds in comparison with that of the traditional chemical reagent fixation method for 2 days.The retina detachment ratio was 16.3%±11.5% for simple microwave method,50.0%±24.5% for chemical method,and 6.7%±7.8% for microwave+chemical method.showing a significant difference among 3 groups(F=32.43,P=0.000).Retinal staining was clear and retinal structure was almost normal in the specimens of microwave+chemical fixation group with 200-240 seeonds microwave irradiation and 1-2 hours chemical fixation. Conclusion Microwave irradiation method is a more ideal way for the fixation of retina because of taking short duration,lower toxicity and better staining.The combination of microwave radiation and chemical reagents can acquire an excellent quality of retinal section.