Aged ; Cardiac Pacing, Artificial ; Cardiac Resynchronization Therapy ; Female ; Heart Ventricles ; Humans

Objective To investigate the changes in the expression of acid-sensing ion channel 3 (ASIC3)in the dorsal root ganglion (DRG) in a rat model of bone cancer pain.Methods Twenty-four female Sprague-Dawley rats,aged 3-4 weeks,weighing 180-220 g,were randomized into 2 groups:sham operation group (group S,n =8) and bone cancer pain group (group P,n =16).Bone cancer pain was induced by inoculating Walker 256 carcinoma cells into the medullary cavity of the left tibia,while group S received normal saline instead.The pain threshold was measured after determination of body weight on the day of inoculation (T0) and on 1,3,5,7,9,11 and 14 days after inoculation (T1-7).The tibia was removed for microscopic examination of the inoculated tibia and X-ray examination.The growth of tumor cells and damage to the tibia were observed.The expression of ASIC3 in the DRG was detected using immunofluorescence.Results The tumor cell infiltration occurred in the medullary cavity and bone destruction was observed in P group.Compared with S group,the body weight was decreased at T3-T7,and the pain threshold was decreased at T4-T7,and the expression of ASIC3 in the DRG was upregulated at T7 in P group (P ＜ 0.05).Conclusion ASIC3 protein expression in DRG is significantly up-regulated in the rats with bone cancer pain,suggesting that the pathway may be involved in the mechanism of bone cancer pain.

Objective To investigate the changes in the expression of acid-sensing ion channel 3(ASIC3)in the dorsal root ganglion(DRG)in a rat model of bone cancer pain.Methods Twenty-four female SD rats,aged 3-4 yr,weighing 180-220 g,were randomly divided into 2 groups:sham operation group(group S,n =8)and bone cancer pain group(group P,n =16).Bone cancer pain was induced by intra-tibial inoculation of 10 μl Walker 256 cancer cell suspension in group P,while group S received intra-tibial inoculation of 5 μl normal saline.Body weight and paw withdrawal threshold to mechanical stimulation with yon Frey filaments(MWT)were measured at 0,1,3,5,7,9,1 1 and 14 d after cancer cell inoculation.The tibia was removed at 14 d after cancer cell inoculation in group S and at 7 and 14 d after cancer cell inoculation in group P for pathological and imaging examinations.The tumor cell growth and bony destruction were observed.The expression of ASIC3 in the DRG was determined by immunolluorescence.Results Pathological damage occurred at 14 d after cancer cell inoculation,bony destruction was observed obviously,ant cortical bone was missing in many places.Compared with group S,body weight at T3-7 and MWT al T2-7:were significantly decreaed,and the expression of ASIC3 was up-regulated at 14 d after cancer cell inoculation in group P(P ＜ 0.05).Conclusion Up-regulation of the expression of ASIC3 in the DRG is involved in the developntent and maiutenence ot bone cancer pain in rars.

Objective To investigate the perioperative characteristics and changing trends of gastric electrical activity of thoracic (tube) stomach in patients with esophageal cancer.Methods The clinical data of 30 patients with esophageal cancer who were admitted to the Sichuan Cancer Hospital between March 2013 and November 2013 were prospectively analyzed.All the eligible patients underwent esophageal cancer resection by Ivor-Lewis according to the inclusion criteria.The electrogastrograms of patients were recorded at preoperative day 1 and at postoperative day 3,7, 11 and 30.The electrogastrograms of patients at preoperative day 1 were used as the control.The parameters of electrogastrogram were analyzed including main frequency, coefficient of dominant frequency instablility, main power, postprandial/preprandial power ratio, percentage of normal gastric slow wave,percentage of slow gastric slow wave and percentage of tachycardia gastric slow wave.Measurement data with normal distritution were presented as x ± s, and measurement data with skew distritution were presented as M (Qn).The postoperative time and pre-and post-prandial electrogastrograms were compared by the repeated measures two-way ANOVA.The comparison between groups were evaluated with the LSD test and analysis of variance.Results Thirty patients were screened for eligibility with a mean age of 62 years (range, 49-75 years), including 26 males and 4 females.The pre-and post-prandial main frequencies were changed from 2.83 ± 0.13 and 3.01 ± 0.17 before operation to 2.66 ± 0.10 and 2.82 ± 0.10 at postoperative day 30 with coherent changing trend.The main frequencies at postoperative each time points were significantly lower than those before operation while postprandial above indicators were higher than preprandial those, showing a significant increasing trend with the passage of postoperative time (F =285.62, P ＜ 0.05).There was no interaction between the time and meal (F =0.22, P ＞ 0.05).The pre-and post-prandial coefficients of dominant frequency instablility were changed from 0.133 ±0.031 and 0.045 ±0.019 before operation to 0.150 ±0.043 and 0.115 ±0.010 at postoperative day 30 with coherent changing trend, and coefficients of dominant frequency instablility at postoperative each time points were significantly higher than those before operation while postprandial above indicators were lower than preprandial those, showing a significant reducing trend with the passage of postoperative time (F =16.51, P ＜ 0.05).The pre-and post-prandial main powers were changed from (85 ± 15) μV and (149 ± 23) μV before operation to (74 ± 9) μμV and (98 ± 10) μV at postoperative day 30, and main powers at postoperative each time points were significantly lower than those before operation, showing a significant increasing trend with the passage of postoperative time (F =48.45, P ＜ 0.05).There was interaction between the time and meal (F =7.39, P ＜ 0.05).The postprandial/preprandial power ratio was changed from 3.00 ± 0.35 before operation to 2.52 ± 0.25 at postoperative day 30, and postprandial/preprandial power ratios at postoperative each time points were significantly lower than those before operation, showing a significant increasing trend with the passage of postoperative time (F =26.66, P ＜ 0.05).The pre-and post-prandial percentages of normal gastric slow wave were changed from 81％ ± 6％ and 94％ ± 5％ before operation to 57％ ± 5％ and 70％ ± 5％ at postoperative day 30 with coherent changing trend, and percentages of normal gastric slow wave at postoperative each time points were significantly lower than those before operation while postprandial above indicators was lower than preprandial those, showing a significant increasing trend with the passage of postoperative time (F =49.36,P ＜0.05).There was no interaction between the time and meal (F =0.24, P ＞ 0.05).The pre-and postprandial percentages of slow gastric slow wave were changed from 17％ ± 7％ and 4％ ± 4％ before operation to 32％±4％ and 21％±4％ at postoperative day 30 with coherent changing trend, and percentages of slow gastric slow wave at postoperative each time points were significantly higher than those before operation while preprandial above indicators were higher than postprandial those, showing a significant reducing trend with the passage of postoperative time (F =46.54, P ＜ 0.05).There was interaction between the time and meal (F =18.12, P ＜ 0.05).The pre-and post-prandial tachycardia gastric slow wave percentages were changed from 1.55％ (1.04％,2.21％) and 1.95％ (1.74％, 4.22％) before operation to 8.97％ (5.76％, 12.02％) and 12.41％ (8.04％,16.85％) at postoperative day 30 without completely coherent changing trend, and percentages of tachycardia gastric slow wave at postoperative each time points were significantly higher than those before operation while postprandial above indicators were higher than preprandial those, showing a significant difference between before operation and postoperative day 3 (Z =11.47, 13.28, P ＜ 0.05) and no significant difference among the postoperative day 7, 11, 30 (Z =1.88, 0.31, 0.03, P ＞ 0.05).There was no interaction between the time and meal (F=0.85, P＜0.05).Conclusions After the esophagectomy, gastric electrical activity of thoracic (tube) stomach is also retained before and after the meal.There are significant differences among the main frequency, main power, coefficients of dominant frequency instablility, postprandial/preprandial power ratio,percentage of normal gastric slow wave, percentage of slow gastric slow wave, percentage of tachycardia gastric slow wave of thoracis (tube) stomach, they have changed dynamically in the perioperative period.

Objective To study the correlation between pulse pressure(PP) and cardiovascular structure and function in aged patients with essential hypertension. Methods Forty-eight aged patients with essential hypertension were enrolled into the study and divided into the following two groups by the mean value of PP: PP

Objective To understand the epidemiological characteristic of committing suicide and to provide the scientific evidence for prevention and crisis intervention.Method A descriptive epidemiological method was employed to analyze the data of 153 individuals of committing suicide successfully saved by doctors of Emergency Department of Gongli Hospital,Pudong New Area,Shanghai.Results Female suicide committers were predominent over male ones,in the ratio 4.6 to 1.Most of the suicide committers were adolescents who had only received junior high school education.The major social support system of the suicide attempters was family support.The majority,of the suicide committers tried to kill themselves by drug ingestion such as hypnotice, sedatives and pesticides,and most of them haven't resorted to psychological counseling.Conclusions It is necessary to pay more attention to the psychological education of adolescents,and popularize the knowledge of psychological counseling in rural areas where are lack of psychological sense among pelple.Emergency department of general hospital which saves suicide committers is playing an important role in suicide prevention and crisis intervention.

Objective - （ ） To investigate the effects of nuclear factor erythroid 2 related factor 2 NRF2 on the oxidative stress （ ） Methods ） ，， induced by trichloromethane TCM in human normal hepatocyte L02 cells. i L02 cells were stimulated with 1 2 ， ， ， （ ）， 4 8 12 16 and 20 mmol/L TCM solution dissolved in dimethyl sulfoxide and the control group and blank group were set ， - ， up. After culturing for 24 hours the cell viability was detected by CCK 8 colorimetric method and the concentration of TCM ） -， - stimulation was screened. ii L02 cells in logarithmic growth phase were randomly divided into control group and low medium - ， ， ， and high dose groups. After 24 hours of exposure to 0 4 8 and 12 mmol/L TCM the cells were collected. The activity of （ ）， （ ）， （ - ） （ ） superoxide dismutase SOD catalase CAT glutathione peroxidase GSH Px and the level of malondialdehyde MDA NRF2， - （HO-1）， were detected by colorimetric analysis. The mRNA expression levels of heme oxygenase 1 glutamate cysteine （GCLC） （） （NQO1） - ligase catalytic subunit and NAD P H quinone dehydrogenase 1 were detected by real time fluorescence ， - ， polymerase chain reaction. The protein levels of NRF2 HO 1 GCLC and NQO1 were detected by Western blotting.Results ） ， ， ， ， i When the concentration of TCM was 4 8 12 16 and 20 mmol/L the survival rate of L02 cells decreased （ P ） ， ， significantly compared with the control group all <0.05 . The concentration of 0 4 8 and 12 mmol/L were selected as the ） ， - stimulation doses for subsequent experiments. ii Compared with the control group the activities of SOD and GSH Px in L02 （ P ） （ P ）， - cells in the three doses groups decreased all <0.05 and the levels of MAD increased all <0.05 with a dose effect - （P ）， relationship. The CAT activity of L02 cells in the medium dose group was lower than that in the control group <0.05 and the - （ P ） CAT activity of L02 cells in the high dose group was lower than that in the others three groups all <0.05 . Compared with the ， NRF2 - （P ），NRF2 control group the relative expression levels of mRNA in L02 cells in the low dose group decreased <0.05 - （P ）， NRF2 mRNA in L02 cells in the medium dose group increased <0.05 mRNA and NRF2 protein expression in L02 cells in （ P ） HO-1，GCLC， NQO1 ， the highdose group increased both <0.05 . The relative expression level of mRNA and GCLC NQO1 （ P ） protein expression in L02 cells in the three doses groups increased compared with the control group all <0.05 . The relative NRF2 - - - expression level of mRNA in L02 cells in the high dose group was higher than that in the low and medium dose groups （ P ）， - （P ）， both <0.05 and the relative expression of NRF2 protein was higher than that in the low dose group <0.05 but the HO-1 GCLC - - （ relative expression levels of and mRNA and HO 1 protein level were lower than those in the medium dose group all P ）Conclusion - <0.05 . TCM exposure can inhibit the proliferation of L02 cells by inducing oxidative stress with a dose effect ， relationship. In this process the antioxidant mechanism mediated by NRF2 was activated. The expression of antioxidant defense ， - ， and detoxification related target genes downstream of NRF2 signaling pathway was activated and the expression of HO 1 - GCLC and NQO1 was up regulated to alleviate the oxidative damage caused by TCM.

Objective To investigate the effects of anxiety and anti - anxiety therapy on vascular endothelium function and platelet activation in patients with acute coronary syndrome (ACS).Methods One hundred and thirty -nine ACS patients were enrolled in this prospective and controlled clinical study from January 2009 through December 2010.Patients with severe heart failure,liver and renal dysfunction,infection,allergy to benzodiazepines and taking antipsychotic drugs in recent 2 weeks as well as patients unable to complete the questionnaire were excluded.All these patients were divided into the anxiety group ( n =68 ) and the non - anxiety group ( n =71 ) according to Hamilton Anxiety Scale (HAMA).The plasma levels of NO,ET,CD62p,CD63 and flow- mediated diastolic functions (FMD) of humeral arteries were measured.The patients in anxiety group were randomly assigned to group A ( n =34 ) and group B ( n =34).Lorazepam in a dose of 0.5 mg twice a day and Vitamin B6 in dose of 10 mg twice a day as placebo were prescribed for patients of Group A and B respectively.After 2 weeks,all above variables of group A and group B were measured once again as well as the score of Hamilton Anxiety Scale.The chi - square test was used for constituent ratios,while t - test was applied to analysis of differences in above variables between two groups.Results The plasma level of NO and FMD of humeral artery in the anxiety group were significantly lower than those in the non -anxiety group (t =2.090 and 2.558,P =0.038 and 0.012,respectively),and the plasma levels of ET,CD62p and CD63 in the anxiety group were significantly higher than those in the non - anxiety group ( t =2.082,2.042 and 2.145,P =0.039,0.043 and 0.034,respectively).There were no statistical differences in all above variables as well as HAMA score between group A and group B before anti - anxiety treatment.Two weeks after treatment,the level of NO and FMD of humeral artery in group A were significantly higher than those in group B ( t =2.821 and 2.246,P =0,006 and 0.028,respectively) and the levels of ET,CD62p,CD63 and HAMA score in group A were significantly lower than those in group B ( t =2.107,3.242,2.079 and 7.779,P =0.039,0.002,0.041 and ＜0.01,respectively).Conclusions Anxiety mood markedly aggravates the disorder of vascular endothelial function and platelet activation,and both of them can be improved by anti - anxiety therapy.Consequently,the intervention in anxiety mood may improve the outcomes of ACS patients.

OBJECTIVETo investigate the clinical and pathologic characteristics of patients with scleredema.

METHODThe clinical and pathologic data of 67 outpatients with scleredema who were admitted to PUMC Hospital from 1982 to 2008 were retrospectively analyzed.

RESULTSNeck and upper back lesions were detected in all patients, but no hand or foot involvement was noted. Among 54 patients who received serum immunoglobulin examination, 19 (35.2%) showed abnormal serum immunoglobulin results. Among 67 patients, 22 (32.8%) had concomitant diabetes mellitus. Alcian blue staining was performed in 35 patients, among whom 23 (65.7%) had positive results and 12 (34.3%) had negative results.

CONCLUSIONSScleredema may have systemic involvements in addition to skin lesions. Patients with scleredema also tends to have concomitant diabetes mellitus. Alcian blue staining is not sufficient to differentiate scleredema and scleroderma.

Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Female ; Humans ; Immunoglobulins ; blood ; Male ; Neck ; pathology ; Retrospective Studies ; Scleredema Adultorum ; complications ; diagnosis ; pathology ; Skin ; pathology ; Young Adult

OBJECTIVETo study the effect of Qingre Liyan Decoction (QRLYD) in the prevention and treatment of acute radiative oral mucositis (AROM), and to explore the mechanism of QRLYD by detecting epidermal growth factor (EGF) and T lymphocytes (CD3, CD4, and CD8).

METHODSSixty patients conforming with the standard were randomly assigned to two groups, 30 patients in each group. Patients in the trial group were treated with QRLYD, and those in the control group were treated with Dobell's solution, both groups receiving conventional radiation treatment. The treatment course for both groups was 6 weeks on average. Blood routine test, CD3, CD4, and CD8 in the peripheral blood and EGF in the saliva were detected one day before and on the 14th and 28th day of radio-therapy.

RESULTSPatients in the trial group were in good condition with normal spirits and intake of food and drinks. The incidence of AROM is lower and the effect in preventing AROM is higher in the trial group than those in the control group (P<0.05). The EGF in saliva, and CD4 and CD8 in the blood of patients in the trial group were higher than those in the control group (P<0.05).

CONCLUSIONQRLYD can cure and prevent AROM. The mechanism may be related with its effects in enhancing body immunity and promoting salivary EGF.

Acute Disease ; Adult ; Carcinoma ; radiotherapy ; Drugs, Chinese Herbal ; adverse effects ; therapeutic use ; Epidermal Growth Factor ; blood ; Female ; Head and Neck Neoplasms ; radiotherapy ; Humans ; Incidence ; Leukocyte Count ; Male ; Middle Aged ; Phytotherapy ; adverse effects ; Platelet Count ; Radiation Injuries ; drug therapy ; prevention & control ; Stomatitis ; drug therapy ; epidemiology ; etiology ; prevention & control ; T-Lymphocyte Subsets ; drug effects ; Treatment Outcome