Objective To investigate the clinical effect of 153 Sm-EDTMP treatment on pain palliation in the patients with bone metastasis of lung cancer, breast cancer or prostate cancer. Methods 166 patients with bone metastasis of cancers were intravenously injected 18.5～37 MBq/kg (0.5～1.0 mCi/kg ) body weight of 153 Sm-EDTMP, once a month or two months. Results The effective rate of pain palliation of 153 Sm-EDTMP treating bone metastasis of lung cancer, preast cancer and prostate cancer were 68.5%, 89.3% and 100%, respectively. The efficacious rate of pain palliation in breast and prostate cancers was significantly higher than that in lung cancer (P

Objective To investigate the passive smoking prevalence and its influencing factors among residents aged 15 and ol-der in Chongqing City ,and provide the evidence for the government to make tobacco control policy or improve the present tobacco control policy ,reduce the harm of secondhand smoke .Methods 753 non-smoker residents was investigated by using the multi-stage random sampling .Results The passive smoking rate of residents aged 15 and older in Chongqing city is 45 .95% ,among which ,the male′s is 43 .13% ,the female′s is 47 .45% ,there is no significant difference between gender distribution .There is a significant difference among different age groups(P<0 .05) ,the passive smoking rate of people aged 25 to 34 is the highest(55 .17% ) .There is a significant difference among different occupational groups (P<0 .05) ,the passive smoking rate of the people who engaged in commercial service is the highest(58 .01% ) .There is no significant difference among education level groups .About the non-smok-ers′attitudes to others smoking around ,the higher education level people have ,the more they will care about this ,the number of fe-male(87 .98% ) is significantly higher than male(70 .99% ) .Conclusion The harm of secondhand smoke to the residents aged 15 and older in Chongqing City is high ,so strengthening legislation and law enforcement is necessary to prevent the public exposure to secondhand smoke and reduce passive smoking level .

Cardiac Pacing, Artificial ; adverse effects ; Diaphragm ; Female ; Humans ; Muscular Diseases ; etiology ; Pacemaker, Artificial ; Young Adult

Objective To explore the CT features in CD_(117)-weak and CD_(117)-negative gastrointestinal stromal tumors(GIST).Methods The CD_(117)-weak and CD_(117)-negative Gist proved by pathologically and sur- gically in 13 cases were retrospectively analyzed.Results The tumor was located in the stomach in 6 cases, small intestine in 4 cases,colorectum in 2 cases,greater omentum in one case.The most common clinical manifestations were abdominal pain or discomfort in 6 cases,hematemesis or melena in 3 cases.Malignant tu- mors occurred in 8 cases.Benign tumors occurred in 5 cases.A soft tissue was identified in all 13 cases in CT examination.The CT examinations revealed cystic regions and bleeding in 5 cases.Calcification was not noted within the masses in all cases.The mean diameter of benign tumors was 3.4 cm?2.8 cm while that of malig- nant tumor was 7.5 cm?6.2 cm.All the cases underwent operation,the resection rate was 100%.After follow up from 6 months to 4 years in 10 cases,1 case died of tumor recurrence and metastasis,the others survived. Conclusion CD_(117)-weak and CD_(117)-negative Gist occurred more common in the stomach.CT is useful in lo- cation and differentiation of CD_(117)-weak and CD_(117)-negative gastric stromal tumors with regard to benign or malignant.Surgery is the main method for final diagnosis and treatment.

AIM:To evaluate 23G vitrectomy for macular edema in eyes with retinal vein occlusion (RVO) combined with vitreoretinal traction (VMT) or epiretinal membrane (ERM).METHODS:Totally 22 patients (22 eyes) diagnosed with macular edema of RVO combined with VMT or ERM were retrospectively analyzed.Twelve cases performed with 23G vitrectomy together with peeling of inner limiting membrane (ILM) and/or ERM were considered as the observation group or intervention group.Ten cases without vitrectomy were recruited as control group.The best corrected visual acuity (BCVA) and central retinal thickness (CRT) at baseline, 1, 3 and 6mo were recorded and compared.RESULTS:At baseline, the difference of BCVA and CRT between observation group and control group was not statistically significant (P=0.645, 0.206).After vitrectomy, the BCVA and CRT of RVO patients in observation group were significantly improved compared with baseline at each follow-up (F=2.895, P=0.048;F=16.431, P<0.01).However, the BCVA and CRT in control group remained the same as baseline at every follow-up.Moreover, the BCVA and CRT in observation group were much better than that in control group at both 3 and 6mo after vitrectomy.However, the BCVA and CRT between two groups were not significantly different at 1mo postoperatively.CONCLUSION:The 23G vitrectomy could markedly improve BCVA and reduce CRT in RVO patients with macular edema combined with VMT and/or ERM.

Objective To investigate the relation of the MR manifestations and the pathological characteristics of dissociated discherniation.Methods Characteristics of pathology and MRI of 23 cases of dissociated disc herniation were retrospectively analysed.Results Of 23 cases,the dissociated disc was low signal intensity(compared with spinal cord) on T_1WI and T_2WI with distinct margine in 7 cases,the adhere and inflammation were slight on pathology;iso-or hypo-signal intensity on T_1WI,low signal intensity in the center and slight high signal intensity at periphery on T_2WI with an distinct margine in 13 cases,while the adhere and inflammation were obvious on pathology;on T_1WI slight high signal intensity on T_1WI and iso-intensity on T_2WI in 3 cases,and fibroplasia was showed on patholgy.In the 12 cases with enhanced MRI,the lesions were slight enhancement at periphery and enhancement in the center in 7 cases,no enhancement in 3 cases,slight enhancement in 2 cases.Conclusion MRI signal characteristic can reflect pathologic changes expressly of the dissociated disc herniation.

Cone-Beam Computed Tomography ; methods ; Humans ; Nasopharyngeal Neoplasms ; diagnostic imaging ; radiotherapy ; Radiotherapy Planning, Computer-Assisted ; Radiotherapy, Intensity-Modulated ; methods

Animals ; Cells, Cultured ; Female ; HSP70 Heat-Shock Proteins ; genetics ; metabolism ; Humans ; Lead ; pharmacokinetics ; toxicity ; Liver ; metabolism ; Male ; RNA, Messenger ; genetics ; Rats ; Rats, Wistar

OBJECTIVE To investigate the effect of quercetin on primary cultured newborn rat cortex neuron cell which is estrogen depletion, and discuss the possible mechanism, to provide new ideas and strategies for developing a drug of neurodegenerative disease. METHODS Rat cortex neurons were isolated from one day old Sprague Dawley rats and treated with estrogen, quercetin and estrogen receptor antagonists (ICI182,780). Cell viability was determined by MTT assay, neurite outgrowth was measured by fluorescent microsope and estrogen receptors were determine by Western blot. RESULTS Quercetin functions like estrogen to increase cortex neuronal cell viability, the Que (50, 100 μmol·L-1) group compared with the control group could significantly improve the activity of the cortical neurons(P<0.05). It can also increase neurite out growth, the Que (50,100 μmol·L-1) group significantly promoted the formation of synapse, most of the neurons were full, and the synapses of neurons became thick, growth, and connect to a dense neural network. And in the Western blot experiments, Que (50, 100 μmol·L-1) group could obviously increase the expression of estrogen receptor alpha protein, in addition, the neural protective effect of quercetin can be inhibited by ICI182,780. CONCLUSION Quercetin like estrogen can protected cortex neuronal and the effect of quercetin on cortex neuronal cells was mediated by estrogen receptor alpha.

Objective To determine the effect of endomorphin (EM) on colonic electromyography activity and investigate the pathogenesis of slow transit constipation (STC). Methods An experimental rat model of slow transit constipation was constructed by contract laxatives mixed with the feed. The changes of colonic electromyography and reaction to endomorphin 1 and endomorphin 2 were examined. Results Compared with the control group, the frequency and amplitude of slow wave in cathartic colon rats were decreased significantly. Endomorphin 1 and endomorphin 2 significantly decreased the amplitudes of slow wave, but did not change the frequencies of slow wave. The effect of endomorphin 1 was more pronounced than that of endomorphin 2, which could be reversed by the morphine antagonist Naloxone in concentration-dependent manner. Endomorphin could not block the stimulating effect of acetylcholine. Conclusions Endomorphin can influence the colonic electromyography activity and intestine motility of cathartic colon rats, and may be involved in the pathologic mechanism of slow transit constipation.