Pancreatic cancer has a strong ability of invasive and metastasis,and the mechanism is still not completely clear.It has been demonstrated that aberrant expression of microRNAs(miRNA) is closely associated with the occurrence,development and metastasis of pancreatic cancer.The reveal of miRNA mechanism related to the metastasis of pancreatic cancer would provide a new approach to the treatment of pancreatic cancer.

ObjectiveTo investigate the effect of mechanical ventilation (MV) on myocardial infarction (MI).Methods43 MI patients of the treating group were treated with mechanical ventilation when PaO2<55 mmHg, SaO2<85%.26 MI patients of the control group were treated with same treatment except for inhaling O2 through nose or face mask.ResultsThe survival rate of the treating group was 34.9%, but that of the control group was 7.8%, there was a significant difference between two groups (P<0.01).ConclusionMechanical ventilation can raise the survival rate of MI patients and improve functions of failing heart.

Environmental Exposure ; prevention & control ; Environmental Monitoring ; Humans ; Occupational Health Services ; organization & administration

Objective To explore the localization and distribution of estrogen receptor alpha (ER ?) and estrogen receptor beta (ER ?) in retina tissues of normal female rats. Methods Twenty-two SD female rats were killed by dislocation of cervical vertebra, the eyeballs were paraffin embedded and made to a series of sections which were then studied by means of immunohistochemical method. The uterus samples of rats with positive ER were used as positive control, and PBS as negative control. The serum estradilum levels of rats were examined by radioimmunoassay. Results A few specimens were found to be ER ? positive expression in retina pigment epithelium (RPE), ganglion cell layer and nerve fiber layer; while in other regions the ER ? negative expressed. The ER ? evidently expressed in different retina regions which were detected mainly in RPE and nerve ganglion cell layer as well as nerve fiber layer, and secondly in internal plexiform layer, while few ER ? expressed in other regions. Immunoreactivity positive substances were granule in shape which were located in the cytoplasm of pigment epithelium, or in cytoplasm, or in the nucleus of ganglion cell, or diffuse distributed in relative regions of retina. The positive expression rates of ER ? were higher than that of ER ? in RPE, ganglion cell layer and in nerve fiber layer (P

ObjectiveTo investigate the clinical difference of ondansetron,metoclopramide and haloperidol in the prevention of postoperative nausea and vomiting after neurosurgery.MethodsNinety patients with neurosurgery were divided by random digits table method into four groups:control group ( 18 cases ) treated with 10 ml 0.9％ sodium chloride ;ondansetron group(24cases ) received ondansetron 4 mg;metoclopramide group (24 cases) with metoclopramide 10 mg and haioperidol group (24 cases) with haloperidol 2.5 mg.The efficacy and adverse reaction were compared among four groups.Results Compared with control group,ondansetron,metoclopramide and haloperidol could obviously inhibit the occurrence of postoperative nausea and vomiting after neurosurgery,the difference had statistical significance (P＜ 0.05).Total effective rate of ondansetron group [79.2％( 19/24)] was significantly higher than that of metoclopramide group [ 58.3％ ( 14/24 ) ] and haloperidol group [ 54.2％ ( 13/24 ) ] (P ＜ 0.05 ).And total effective rate of metoclopramide group and haloperidol group had no significant difference (P ＞ 0.05 ).The occurrence rate of adverse reaction of metoclopramide group [ 16.7％(4/24)] had no statistical significance compared with that of ondansetron group[8.3％(2/24)] and haloperidol group[ 12.5％(3/24)] (P ＞ 0.05).ConclusionsOndansetron,metoclopramide and haloperidol can obviously inhibit the occurrence of postoperative nausea and vomiting after neurosurgery,and the effect of ondansetron is significantly better than that of metoclopramide and haloperidol.Therefore,it is necessary to use drugs for preventing postoperative nausea and vomiting for patients during neurosurgery.

ObjectiveTo investigate the effect of preoperative sleep disturbance on the efficacy of flurbiprofen for postoperative analgesia in patients undergoing endoscopic nasal surgery.MethodsNinety-six ASA Ⅰ or Ⅱ patients of both sexes aged 20-60 yr weighing 50-80 kg undergoing endoscopic nasal surgery were enrolled in this study.Pittsburg sleep quality index was used to evaluate long-term sleep quality before hospitalization and Athens sleep quality index was used to evaluate short-term sleep quality in hospital.The patients were divided into 4 groups according to the types of preoperative sleep disturbance ( n =24 each):group Ⅰ no sleep disturbance;group Ⅱ long-term sleep disturbance; group Ⅲ acute short-term sleep disturbance; group Ⅳ long-term + acute short-term sleep disturbance.Anesthesia was induced with sufentanil,propofol and cis-atracurium and maintained with iv infusion of remifentanil and propofol.The patients were intubated and mechanically ventilated.PETCO2 was maintained at 30-35 nun Hg.Controlled hypoteasion was performed with nicardipine,MAP was maintained at 50-70 mm Hg and HR at 60-90 bpm during operation.The patients received iv flurbiprofen 50 mg at 15 min before the end of operation for postoperative analgesia.When VAS score was more than 3 during the fnrst 6 h after operation,flurbiprofen 50 mg was given iv as rescue analgesic.ResultsThe incidence of rescue analgesic administered after operation was significantly larger in groups Ⅱ,Ⅲ and Ⅳ than in group Ⅰ,and in group Ⅳ than in groups Ⅱ and Ⅲ.There was no significant difference in the incidence of rescue analgesic administered during the first 6 h after operation between groups Ⅱ and Ⅲ.ConclusionPreoperative sleep disturbance has adverse effect on the efficacy of flurbiprofen for postoperative analgesia in patients undergoing endoscopic nasal surgery.

Objective To evaluate the effects of a health education project on prevention and control of iodine deficiency disorders.Methods From January to June 2011,an investigation was conducted using combined unified questionnaire in 9 counties on target population,and 3 townships were chosen in each project county.Health educational activities were carried out in grade 5 classes in the central primary school.In the meantime,3 villages were chosen in each selected township where the health educational activities in the community were carried out.Before and after the health educational activities,questionnaire surveys on knowledge of iodine deficiency disorders were conducted in each project county.Thirty students in one class of grade 5 in the central primary school were selected,and 15 women of childbearing age near the central primary school were selected too.The health education content included but not limited to:popular science films about the knowledge on endemic disease prevention and public-interest ads were broadcasted by radio,television,newspapers and other media in the project counties,aiming at spreading knowledge on prevention and treatment of endemic diseases.In each of the project township government and village committee locations,posters,banner pieces and slogan suspensions about knowledge on endemic disease prevention were posted or put up.In the project rural hospitals,a special bulletin boards was set up,and in the village clinics (rooms),posters were put up,to carry out a training program for women of childbearing age on endemic disease prevention.In primary schools,students in grades 4 to 6 were given a class about knowledge on prevention and treatment of iodine deficiency disorders,aiming at their transferring the learned knowledge to family members.Results A total of 2678 persons were investigated before and after the health education.After health education,the rate of knowledge(the correct answer rate) on iodine deficiency disorders increased from 69.04％ (1920/2781) to 94.08％ (2622/2787,x2 =580.63,P ＜ 0.05) among primary school students,and 74.76％(924/1236) to 92.60％(1139/1230,x2 =143.59,P ＜ 0.05) among women of childbearing age.Conclusions The rate of knowledge awareness in the students and the women of childbearing is increased significantly after the health educational activities.Systematic and targeted health education activities are effective measures in prevention and control of iodine deficiency disorders.

Objective To investigate the effects of preoperative sleep disturbance on the efficacy of flurbiprofen for postoperative analgesia in patients undergoing endoscopic nasal surgery.Methods Ninety-six ASA Ⅰ or Ⅱ patients of both sexes (aged 20-60 years and weighing 50-80 kg) undergoing endoscopic nasal surgery were enrolled in this study.Pittsburg sleep quality index was used to evaluate the long-term sleep quality before hospitalization and Athens sleep quality index was used to evaluate the short-term sleep quality in hospital.The patients were divided into four groups according to the types of preoperative sleep disturbance (n =24 each):no sleep disturbance (group Ⅰ),long-term sleep disturbance (group Ⅱ),acute short-term sleep disturbance (group Ⅲ),and long-term + acute short-term sleep disturbance (group Ⅳ).Anesthesia was induced with sufentanil,propofol and cis-atracurium and maintained with intravenous infusion of remifentanil and propofol.Then the patients received endotracheal intubation and mechanical ventilation.The end-tidal pressure of carbon dioxide was maintained at 30-35 mm Hg.Controlled hypotension was performed with nicardipine,and the mean arterial blood pressure was maintained at 50-70 mm Hg and heart rate at 60-90 bpm during operation.The patients received intravenous injection of flurbiprofen 50 mg 15 minutes before the end of operation for postoperative analgesia.When the visual analogue scale score was more than 3 during the first 6 hours after operation,flurbiprofen 50 mg was given intravenously as rescue analgesia.Results The incidence of rescue analgesia administered after operation was significantly greater in groups Ⅱ,Ⅲ and Ⅳ than in group Ⅰ,and greater in group Ⅳ than in groups Ⅱ and Ⅲ.There was no significant difference in the incidence of rescue analgesia administered during the first 6 hours after operation between groups Ⅱ and Ⅲ.Conclusion Preoperative sleep disturbance has adverse effects on the efficacy of flurbiprofen for postoperative analgesia in patients undergoing endoscopic nasal surgery.

microRNAs ( miRNAs) are a family of short non-cod-ing RNAs that regulate the expression of target genes by binding to complementary regions. The miRNAs expression is readily al-tered by drugs, carcinogens, hormones, stress or diseases, and that might lead to changes in the drug metabolism, pharmacoki-netics or potency. Moreover, the evaluation of drug metabolic enzyme-related miRNAs would provide useful information for per-sonalized medicine. This review describes the current knowledge on the post-transcription regulation of drug metabolic enzymes by miRNAs.

Objective:To investigate the important role of the activation of complement system on the experimental hepatic necrosis.Methods:The complement activation of classic pathway was evaluated by detecting sexum CH50.The local hepatic deposition of C3 in rat hepatic necxosis was detected by immunohistochemical technique.Results:Compared with the controlled,serum CH50 decreased on different degree in all the administrated groups alone with prolonged observing time-page.Submassive hepatic necrosis was observed in Ga1N/LPS treated rats in H-E sections,and SP.Stainning showed the local hepatic deposition of C3 existed limited to the kupffer cells,the membrane,hepatocyte and the necrotic hepatocyte zone.GaIN caused gentle liver tissue injury,namly monocyie infiltration,hepatocyte balloon degeneration and focus necrosis,but none of deposition of C3 was observed.LPS caused the same changes as that by Ga1N,but the local hepatic deposition of C3 was limited to the endothelial cells and kupffer cells.Conclusion:The activation of complement in serum,especially the local hepatic activation of complement,play an important role in Ga1N/LPS-induced acute hepatic necrosis of rat.Extra-LPS may cause the activation of complement system the in classic activation of C3.Pathway of rat,but the hepatic injury may probably be related to the local hepatic deposion.Ga1N induced hepatic injury may has no direct relationship to the complement activation in serum.