Objective:To analyze the current status of medical students′ humanity education satisfaction rate and present situation of humanity quality and thus provide evidence to better practice of humanity education. Meth-ods:According to the random stratified cluster sampling method, the researchers selected 1146 medical students from Harbin Medical University and then investigated the objects′ humanity education satisfaction rate and general humanity situation. The data was analyzed using χ2 test in SPSS 17. 0. Results:①Satisfaction status of humanity education:the students′satisfaction to teachers′humanity quality, effect of course and library resources were low.② The present situation of humanity quality:80 . 2% of the medical students thought it was necessary to strengthen the medical students′humanity education;18. 1% of the medical students remembered the medical student oath, and there existed significant differences between different specialties;11 . 9% of the medical students could clear connotation of the humanistic concept, and there were significant differences between various grades;24. 4% and 14 . 5% of the medical students couldn′t clear the humanistic attribute of Marxist political theory course and moral course respectively; rural students′ humanity quality was statistically lower than the urban ones. Conclusion:Through optimizing the structure of humanity courses, strengthening the construction of teaching staff and attaching great importance of the library to humanity education effect, so as to improve medical students′ satisfaction of hu-manity education. The government should increase investment in rural education to narrow the gap of basic humani-ty quality education between urban and rural.

Objective To explore the safety and success rate of endovascular intervention in the treatment of Budd-Chiari syndrome. Methods Double balloon-catheters were inserted into proximal and distal of the obstructive segments in inferior vena cava of 18 cases of Budd-Chiari syndrome respectively. The balloon was filled with contrast medium. Perforation in the obstructive segments was done by hard core through a balloon-catheter, using another one as a guide. Results The length of obstructive segments in inferior vena cava ranged from 1.2cm to 8.0cm. In the 18 cases of Budd-Chiari syndrome, 15 obstructive segments were perforated successfully(83.3%), of whom 6 cases were performed by single balloon-catheters with acute pericardial wadding in 1 case and 9 cases by double balloon-catheters without vessels damage and bleeding. Conclusions The membrane perforation induced by double balloon-catheters is a key process of endovascular interventive technique in the treatment of Budd-Chiari syndrome.

Adnexa Uteri ; surgery ; Colectomy ; methods ; Colonic Diseases ; etiology ; pathology ; surgery ; Colostomy ; Endometriosis ; complications ; pathology ; surgery ; Female ; Fistula ; etiology ; pathology ; surgery ; Follow-Up Studies ; Humans ; Intestinal Fistula ; etiology ; pathology ; surgery ; Middle Aged ; Ovarian Cysts ; complications ; pathology ; surgery ; Ovarian Diseases ; etiology ; pathology ; surgery ; Ovariectomy

Objective To evaluate the feasibility and efficacy of chemoradiotherapy for locally advanced (inoperable) rectal cancer. Methods Seventy-six patients with locally advanced (T_4) or recurrent rectal cancer were randomized into two groups of concurrent chemoradiotherapy with either oxaliplatin plus 5-FU (oxaliplatin 130 mg/m~2, day 1,5-FU 350 mg/m~2, day 1 -5 ,LV 200 mg/m~2, day 1 -5, 4 weeks per cycle) or capecitabine (1650 mg/m~2, day 1 -14, 3 weeks per cycle) alone. All patients received pelvic three-dimensional conforrnal radiotherapy (3 DCRT) of 46 -50 Gy in 23 -25 fractions, with a boost of 14 -18 Gy in 7 -9 fractions. Results The median follow-up time was 19 months. The overall response rate was 64% in the oxaliplatin/5-FU group comparing with 58% in the capecitabine group (χ~2 = 0. 08 ,P =0. 772), with the median survival time of 22 months and 18 months (u = 17.71, P = 0. 077), respectively. The overall survival in the two groups was 68% and 63% at 1 year, and 21% and 19% at 2 years, respectively (χ~2 = 0. 97, P = 0. 326). There were no treatment-related deaths or grade 4 toxicities. Neutrocytopenia (39. 5% vs 77.7%, z = -3.97,P =0. 0001), diarrhea (47.4% vs 88.9%, z = -4. 78, P = 0. 0001), nausea and vomiting (68.4% vs 97.2%, z = -3. 17, P = 0. 0001), and neurotoxicity (5.3% vs 66.7%, z= -6.56, P= 0.0001) were more common in the oxaliplatin/5-FU group. Conclusions Concurrent chemoradiotherapy is well-tolerated and effective in patients with locally advanced (inoperable) rectal cancer.

Objective To explore the mechanism of neuropmtective effects of puerarin for the treatment of acute spinal ischenia-reperfusion injury in a rat model.Methods Acute spinal ischemia-reperfusion injury was induced via aortic occlusion in 28 male Sprague-Dawley rats.The animals were randomly divided into four groups,as follows:group negative contrast (NC sham operation),group positive control group (IR+ S ischemia/reperfusion + saline),group puerarin (IR+P ischemia/reperfusion + puerarin),group mscovitine (IR+R ischemia/reperfusion + roscovitine).The motor function,spinal infarction volume,apoptosis indices,and CDK5 and P25 activities were examined.Results Spinal ischemia-reperfusion caused the injury of the spines and was associated with motor deficit,elevation of CDK5 and P25 activities,and increase in the spinal apoptosis and spinal infarction volume.Puerarin improved motor function and decreased apoptosis,spinal infarction volume,and CDK5 and P25 activities.Conclusion The findings of the present study indicated that puerarin treatment-mediated reduction of spinal injury was associated with the inhibition of CDK5 and P25,and that the inhibition was one among the neuroprotective mechanisms of puerarin against acute ischemia/reperfusioninduced spinal injury in rats.

Objective To study the relationship between red blood cell distribution width (RDW) and the malignant arrhythmia event of patients with chronic heart failure (CHF) during hospitalization. Methods A retrospective study was conducted. The clinical data of patients with CHF admitted to Department of Emergency and Cardiology of Peking University Third Hospital from January 2014 to February 2016 were reviewed. The patients with New York Heart Association (NYHA) Class Ⅱ, Ⅲ, Ⅳ at hospital admission and courses lasted at least six months were enrolled. The patients were divided into two groups according to malignant arrhythmia events (ventricular tachycardia, ventricular flutter or ventricular fibrillation) during hospitalization, i.e. malignant arrhythmia group and non-malignant arrhythmia group. The value of RDW and left ventricular ejection fraction (LVEF) were compared between two groups, and correlation of RDW, LVEF and malignant arrhythmia events by Spearman rank correlation analysis were studied, and the predictive value of RDW and LVEF for malignant arrhythmia events in patients with CHF was analyzed with receiver operating characteristic (ROC) curve. Results A total of 226 CHF patients were enrolled with 148 male and 78 female, the average age was (61.52±13.27) years old (range: 26-91 years old), the average hospitalization days were (14.5±3.5) days (range: 14-21 days), and malignant arrhythmia occurred in 102 patients (45.13%) during hospitalization. There were no statistically differences in gender, age, past history, etiology of heart disease, the usage of angiotensin receptor converting enzyme inhibitors (ACEI) or angiotensin Ⅱ receptor inhibitors (ARB) and beta blockers, serum potassium levels and so on between two groups. Compared with non-malignant arrhythmia group, the value of the RDW was significantly increased in malignant arrhythmia group [(13.28±1.07)% vs. (12.87±1.32)%, t = 2.531, P = 0.012], but the levels of LVEF was significantly reduced (0.425±0.116 vs. 0.458±0.104, t = 2.249, P = 0.026), the proportion of patients with NYHA Class Ⅱ was significantly lower (4.90% vs. 19.35%, χ2= 10.451, P = 0.000) and that of NYHA Class Ⅳ was just the opposite (57.84% vs. 41.13%, χ2 = 6.264, P = 0.011). The value of the RDW showed positively correlation with the malignant arrhythmia events (r = 0.758, P = 0.023), while LVEF was negatively correlated (r = -0.719, P = 0.019). The area under the ROC curve (AUC) for predicting the malignant arrhythmia events of RDW and LVEF was 0.882 [95% confidence interval (95%CI) = 0.839-0.925), 0.903 (95%CI = 0.866-0.941), respectively. The sensitivity and specificity for RDW in predicting in-hospital malignant arrhythmia event respectively were 82.0% and 79.0% with the optimal cut-off of 14.20%, and those for LVEF were 78.0% and 85.0% with the optimal cut-off of 0.375. Conclusion RDW can be used to predict the occurrence of malignant arrhythmia in patients with CHF during hospitalization.

BACKGROUND:Currently, there are few reports on the effects of Caspase inhibitors combined with Cocktail protease inhibitors on isolation and purification of islet cel s. OBJECTIVE:To explore the effects of Caspase inhibitors and Cocktail protease as protectors on islet cel s during isolation and purification process. METHODS:New-born pigs were selected to separate, purify and culture the islet cel s, and after 24 hours of culture, the specimens were divided into three groups:blank control group, experimental group A (Caspase inhibitors and Cocktail protease were added only during digestion process), and experimental group B (Caspase inhibitors and Cocktail protease were added both during digestion and culture processes). AO-EB staining was used to qualitatively observe cel morphology and apoptosis. Flow cytometry was employed to quantitatively detect cel viability and apoptosis. RESULTS AND CONCLUSION:Percentages ofβcel s were 66.91%in blank control group, 84.58%in the experimental group A, and 87.15%in the experimental group B. The proportions of living cel s, apoptotic cel s and dead cel s were 56.52%, 16.15%, 21.25%in the blank control group, 62.27%, 14.66%, 14.47%in the experimental group A, and 73.09%, 6.83%, 10.28%in the experimental group B, respectively. These findings indicate that in the process of digestion and culture in vitro, Caspase inhibitors and Cocktail protease inhibitors can both obviously decrease the loss of cel s, and increase the percentage of islet beta cel s.

Objective_To investigate whether hUCMSCs undergo malignant transformation when exposed to MCF-7B breast cancer microenvironment and whether the abnormal activation and over expression of STAT3 play an impor-tant role in this transformation.Methods_The experiment was divided into three groups:blank group ( hUCMSCs were separately cultured),experimental group(hUCMSCs were indirectly co-cultured with MCF-7B breast cancer cells),positive control group(MCF-7B breast cancer cells were separately cultured).Morphology of cells was detec-ted by invertedmicroscope.Cell cycle was detected by flow cytometry.The mRNA expression of STAT3, c-Myc and Bcl-xL was tested by real-time PCR.The protein expression and location of p-STAT3,c-Myc and Bcl-xL were detected by immunofluorescence.The protein expressions of p-STAT3,STAT3,c-Myc and Bcl-xL were also meas-ured by Western blot.Results_The experimental group cells showed typical morphology of the tumor cells.The cells proportion of experiment group in G1 phase was significantly lower than that of the blank group(P<0.05),but which in S and G2 phase were significantly higher than those of the blank group(P<0.05).The mRNA expression levels of STAT3 ,c-Myc and Bcl-xL in experimental group was significantly higher than those in blank group ( P<0.05).p-STAT3,STAT3,c-Myc and Bcl-xL protein were significantly higher than those of the blank group(P<0.05),and they were mainly located in the nuclei.The protein expression of STATS also showed significant changes in experimental group.Conclusions_hUCMSCs trends to malignant transformations when exposed to MCF-7B breast cancer microenvironment.The abnormal activation and over expression of STAT3 are of important factors leading to the malignant transformation of hUCMSCs.

BACKGROUND: Apart from anticoagulation property and suppressing platelet congregation capability, tongxinluo preparation has been proved by traditional Chinese medicine to possess certain function for protecting endothelial cells.OBJECTIVE: To observe the influence of Chinese medicinal herb "tongxinluo" compound on adhesion molecule expression in brain ischemia-reperfusion (IR) animal model.DESIGN: Randomized and controlled experiment.SETTING: Department of Neurology, Changzheng Hospital Affiliated to the Second Military Medical University of Chinese PLA.MATERIALS: This experiment was conducted at the laboratory of the Department of Neurology, Shanghai Changzheng Hospital, between October 2002 and January 2003. Totally 25 male SD rats were randomized into sham-operation group of 5 rats, model group of 10 rats and tongxinluo group of 10 rats.METHODS: Middle cerebral artery was occluded using thread-bolt method to induce focal brain IR model in rats. In sham-operation group,nylon thread was placed around the external carotid artery approximating to the branch of internal carotid artery, and the other procedure was the same as that in model group. Rats in tongxinluo group were given tongxininfusion before IR for 1 consecutive week, which was replaced by physiological saline of the same dosage in model group and sham-operation group. Brain tissues were obtained under anesthesia condition and cut into slices; conventional HE staining, immunohistochemical and in situ hybridization staining were conducted.MAIN OUTCOME MEASURES:① The number of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1)positive microvessels following IR injury.② The number of ICAM-1 and VCAM-1 mRNA positive microvessels following IR injury.RESULTS:① In sham-operation group,ICAM-1,VCAM-1 protein andICAM-1 mRNA positive microvessels could not be observed in hemispheric cortex and basal ganglion at the operative side.② In model group,the positive expression of ICAM-1, VCAM-1 protein and ICAM-1 mRNA obviously increased at the ischemic side at 6-hour reperfusion following 2-hour ischemia.③ In tongxinluo medication group,the positive protein and mRNA-expressing microvessls were found remarkably reduced in number in ischemic side hemispheric cortex and basal ganglion [(10.42 ±1.98),(12.42±2.14)/HP; (8.54±2.00), (11.12±1.56)/HP] (P ＜ 0.05), but the positive VCAM-1 protein-expressing microvessels did not change remarkably (P ＞ 0.05).CONCLUSION: Tongxinluo can suppress ICAM-1 transcription and translation following rat brain IR, thus attenuating inflammatory injury induced by brain ischemia.

The conditions of Pseudomonas sp.GX 4\|1 producing flocculant only using fish meal wastewater were mainly studied.Under the optimum culture conditions:medium COD 10g/L,initial pH 7～9,cultural temperature 30,and the shaking speed,100～250r/min,the flocculating rates can highly reach more than 97% with maxmium 99 5%,even if the culture medium was not sterilized.This flocculant shows high flocculating efficiency to kaolin clay suspension,soil suspension,activate carbon powder suspension and wastewater fromelectroceramics plant.