Characteristics of Atmospheric Fine Particulate Matter (PM ) Induced Differentially Expressed Proteins Determined by Proteomics and Bioinformatics Analyses / 生物医学与环境科学（英文）

Objective@#To screen the differentially expressed proteins (DEPs) in human bronchial epithelial cells (HBE) treated with atmospheric fine particulate matter (PM ).@*Methods@#HBE cells were treated with PM samples from Shenzhen and Taiyuan for 24 h. To detect overall protein expression, the Q Exactive mass spectrometer was used. Gene ontology (GO), Kyoto encyclopedia of genes and genomes (KEGG), and Perseus software were used to screen DEPs.@*Results@#Overall, 67 DEPs were screened in the Shenzhen sample-treated group, of which 46 were upregulated and 21 were downregulated. In total, 252 DEPs were screened in the Taiyuan sample-treated group, of which 134 were upregulated and 118 were downregulated. KEGG analysis demonstrated that DEPs were mainly enriched in ubiquitin-mediated proteolysis and HIF-1 signal pathways in Shenzhen PM samples-treated group. The GO analysis demonstrated that Shenzhen sample-induced DEPs were mainly involved in the biological process for absorption of various metal ions and cell components. The Taiyuan PM -induced DEPs were mainly involved in biological processes of protein aggregation regulation and molecular function of oxidase activity. Additionally, three important DEPs, including ANXA2, DIABLO, and AIMP1, were screened.@*Conclusion@#Our findings provide a valuable basis for further evaluation of PM -associated carcinogenesis.

Safety evaluation of endoscopic retrograde cholangiopancreatography for elderly patients / 中国内镜杂志

Objective To evaluated the security of endoscopic retrograde cholangiopancreatography (ERCP) among the patients aged over 80 years. Methods 80 patients who were accepted ERCP and aged over 80 years were analgzed, to learn the diseases of patients and evaluate what the impact of ERCP. To complete ERCP in the shortest time, we observed of vital signs, abdominal symptoms and nasal biliary drainage rigorouly after the opration , and to test blood routine, serum amylase, urine amylase and biochemical indicators, detect whether secondary or aggravate other organs damage within 1 week. Results There were 11 cases (13.75%) had secondary organs damage, the percentage of with over two diseases is 51.25%, 78 cases (96.25%) accepted the ERCP, the primary success rate of lithotomy in 55 cases of common bile duct stones is 74.55%, among them there were 3 cases accepted internal drainage by cutting the nasobiliary since they can not be conducted lithotomy once more. One patient of pancreatic carcinoma complicated with duodenal stenosis was treated in implantation of biliary metal stent after accepted the dilation of bile duct , and then the stent was implanted in the narrow duodenum. One patient was died of heart failure, renal failure and respiratory failure after one week; There were no other serious complications occurred, the total incidence rate of complication was 7.50%, the average operation time was (26.64 ± 8.31) min. Conclusions The patients over 80 years old are relatively safe for ERCP, the effect is obviously, and appropriate management of perioperative can reduce the incidence of complications.

Safety evaluation of endoscopic retrograde cholangiopancreatography for elderly patients / 中国内镜杂志

Objective To evaluated the security of endoscopic retrograde cholangiopancreatography (ERCP) among the patients aged over 80 years. Methods 80 patients who were accepted ERCP and aged over 80 years were analgzed, to learn the diseases of patients and evaluate what the impact of ERCP. To complete ERCP in the shortest time, we observed of vital signs, abdominal symptoms and nasal biliary drainage rigorouly after the opration , and to test blood routine, serum amylase, urine amylase and biochemical indicators, detect whether secondary or aggravate other organs damage within 1 week. Results There were 11 cases (13.75%) had secondary organs damage, the percentage of with over two diseases is 51.25%, 78 cases (96.25%) accepted the ERCP, the primary success rate of lithotomy in 55 cases of common bile duct stones is 74.55%, among them there were 3 cases accepted internal drainage by cutting the nasobiliary since they can not be conducted lithotomy once more. One patient of pancreatic carcinoma complicated with duodenal stenosis was treated in implantation of biliary metal stent after accepted the dilation of bile duct , and then the stent was implanted in the narrow duodenum. One patient was died of heart failure, renal failure and respiratory failure after one week; There were no other serious complications occurred, the total incidence rate of complication was 7.50%, the average operation time was (26.64 ± 8.31) min. Conclusions The patients over 80 years old are relatively safe for ERCP, the effect is obviously, and appropriate management of perioperative can reduce the incidence of complications.

A clinical study of 27 cases of cervical metastatic carcinoma of unknown primary site / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To analyze the clinical feature of cervical metastatic carcinoma of unknown primary site (CCUP) for guiding clinical diagnosis and treatment.@*METHOD@#Twenty-seven cases of CCUP during May 2007 to September 2013 in department were analyzed retrospectively. Kaplan-Meier method and Log-rank test were used for survival analysis, multivariate analysis using the Cox regression model.@*RESULT@#There is no significant influence among gender, age and the mass position on the median survival time. Median survival time of patients with different pathological types was statistically significant (P < 0.05). Treatment affected the median surial significantly (P < 0.05) and also was the independent prognostic factors (P < 0.05).@*CONCLUSION@#The early establishment of pathological type and primary focal position can improve the prognosis. Taking treatment according to pathological types can increase the patient's survival rate. Combined treatment can prolong the patient's survival time.

Possibility of reserving uterus during severe postpartum hemorrhage / 中华围产医学杂志

Objective To investigate the possibility of reserving uterus during severe postpartum hemorrhage. MethodsA retrospective analysis was conducted on the clinical data of 138 cases of severe postpartum hemorrhage (blood loss ≥2000 ml) from January 1, 2003 to December 31, 2009. Results Among 138 cases of severe postpartum hemorrhage, uterine atony (n= 60, 43. 38 ％ ) was the first cause and the second was placental factor (n= 55, 39.86 ％). The blood loss varied from 2000 ml to 10 000 ml and the mean level was about (3004± 1473) ml. The volume of blood transfusion for these patients varied from 800 ml to 7200 ml. Among these patients, the blood loss of 108 cases reserved uteri was from 2000 ml to 7500 ml, with the average of (2564±932) ml； while for 30 cases performed with hysterectomy, the blood loss was about 2500 to 10 000 ml averagly (4653± 1857) ml (t=8. 57, P=0.00). These patients were divided into two groups according to time series. Twelve cases of hysterectomy were performed during 2003to 2005, and the hysterectomy rate was 0. 47‰; 18 cases of hysterectomy were performed during 2006 to 2009, and the hysterectomy rate was 0. 36‰. The average blood loss of the above two groups was (3783±861) ml and (5233±2124) ml respectively (t=2. 234, P=0. 034). Among all the cases with blood loss ≥ 3000 ml, uteri were reserved in 24 cases with the average blood loss of (3818 ± 1284) ml； while hysterectomy were performed in 27 cases with average blood loss of (4900 ± 1789) rnl (t = 2. 453, P =0. 018). The time for blood loss to 3000 ml in the two groups was (160±129) min and (100±67) min,respectively, and the difference was significant (t=2. 113, P = 0.04).The uteri of six cases with postpartum hemorrhage over 4000 ml were successfully reserved, and average bleeding amount was 5570 ml.Two patients among the 138 women died of amniotic fluid embolism.The perinatal mortality rate was 3. 73％.ConclusionsThe postpartum hemorrhage volume and velocity is the key point to decide whether to reserve the uterus or not.For the population with high risk factors,prophylaxis treatment with prostaglandins should be initiated to reduce the bleeding volume.Uterine packing might be an effective treatment to stop postpartum hemorrhage, especially for those bleeding due to placenta previa.

The correlation between ultrastructure of lymphatic capillary and neck lymph node metastasis laryngeal carcinoma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To study the correlation between ultrastructure of lymphatic capillary in pericancerous tissue and neck lymph node metastasis in laryngeal carcinoma.@*METHOD@#Transmission electronic microscope was applied to observe and compare ultrastructure of lymphatic capillary in 8 normal laryngeal epithelial tissue and 12 pericancerous tissue of laryngeal cancer.@*RESULT@#Lymphatic capillary of pericancerous tissue was significantly dilated compared with normal laryngeal tissue. A large amount of endothelial cell junction was open and devoid of basement membrane. Some endothelial cells of lymphatic capillary were destroyed or broken completely.@*CONCLUSION@#Ultrastructure of lymphatic capillary in pericancerous tissue is an important factor of laryngeal cancer metastasis through lymphatic system. This research offers theoretic basis for laryngeal carcinoma metastasis mechanism and prevention.

Research of 10-23 DNAZyme inhibit the expression of eIF4E genes / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To explore the possibility of 10-23DNAzyme becoming a new gene therapy for laryngeal carcinoma treatment at the cell level.@*METHOD@#Thiosthorothioate 10-23DNAzyme specific to eIF4E gene mRNA 1059 was designed and synthesized, and its inhibition effects on the expression of eIF4E gene in Hep-2 cells were observed.@*RESULT@#The expression of eIF4E gene was remarkable depressed after Hep-2 cells was transfected by DNAzyme. The level of inhibiting eIF4E in hep-2 cells transfected by DNAzyme was lower than that by only lipofectamine 2000 transfected and Hep-2.@*CONCLUSION@#The expression of eIF4E gene in Hep-2 cells 10-23DNAzyme can be highly blocked. It is a specific and effective gene therapeutic means.

The expression of MMP-2, E-cadherin in supraglottic carcinoma and their relationship with cervical lymph node metastasis / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To study the expressions of matrix metalloproteinase-2 (MMP-2) and E-cadherin in laryngeal carcinoma and their relationship with cervical lymph node metastasis.@*METHOD@#The expression of MMP-2 and E-cadherin in 10 cases of normal laryngeal mucosa and 48 cases of supraglottic carcinoma were detected by immunohistochemistry.@*RESULT@#The expression of MMP-2 in supraglottic carcinoma was significantly higher than that in normal laryngeal mucosa. The expression of MMP-2 in metastatic lymph nodes was significantly higher than that in nonmetastatic lymph nodes (P < 0.05). The expression of E-cadherin was significantly lower in supraglottic carcinoma than that in normal laryngeal mucosa. The expression of E-cadherin was significantly lower in metastatic lymph nodes than that in nonmetastatic lymph nodes (P < 0.05). There is a negative correlation between the expression of MMP-2 and E-cadherin (r = -0.41). Predicting the lymph node metastasis of laryngeal carcinoma with the index of MMP-2(+), E-cadherin(-) and MMP-2(+), E-cadherin(-). MMP-2(+) has the highest sensitivity, but the lowest specificity and positive predictive value. MMP-2(+), E-cadherin(-) has the highest specificity and positive predictive value, but the lowest sensitivity.@*CONCLUSION@#Expression of MMP-2 and E-cadherin can be used as a marker to predict lymph node metastasis of supraglottic carcinoma. Combined the detection of MMP-2 and E-cadherin can boost the accuracy of prediction of lymph node metastasis in supraglottic carcinoma and provide efficient assistance for resecting supraglottic carcinoma.

International collaborative survey on epidemiology of hepatitis E virus in 11 countries.

We conducted seroepidemiological studies on antibody prevalence to hepatitis E virus (HEV) in 5,233 sera from 11 countries to ascertain the present state of HEV infection on a global basis. The prevalence of anti-HEV IgG increased with age in these tested countries, but the rate of antibody positivity was over 20% in the 16-30 year-old group in most of the participating countries, except for Japan, the USA, and Spain. Of patients with acute hepatitis of unknown etiology from Nepal, 56% (14/25) were positive for the IgM class of anti-HEV antibody. In addition, HEV RNAs in the serum from 3 Nepali patients who had the IgM antibody were detected by nested PCR and all of the HEV genes isolated belonged to genotype 1. Our results indicate that HEV is spreading worldwide, not only in developing countries, but also in more industrialized countries than previously thought.

Proliferation inhibition of chlorpromazine combined with taxol on Hep-2 cells / 吉林大学学报(医学版)

Objective To investigate the proliferation inhibition of chlorpromazine combined with taxol on Hep-2 cells (human laryngeal carcinoma cell line) and the effects on cell cycle progression. Methods Hep-2 cells at logarithmic growth phase were divided into taxol groups(3.0,6.0 and 12.0 mg?L-1),chlorpromazine(12.0 mg?L-1) comined with taxol (4 mg?L-1)group and control group (100 mL culture fluid).MTT and flow cytometry were used to detect the proliferation inhibition rates of Hep-2 cells in various groups.Flow cytometry was also used to analyze the cell cycle progression of Hep-2 cells and apoptotic rate after administration.Results The proliferation inhibition rates in 3.0,6.0 and 12.0 mg?L-1 taxol groups were 14.0%,23.9% and 36.7%,respectively,there were significant differences between three groups(P

Expression and correlation of eIF4E and c-myc in laryngeal carcinoma / 中国免疫学杂志

Objective:To observe the expression and correlation of eIF4E and c-myc in laryngeal squamous cell carcinoma.Methods:Western blot was applied to examine the expression of eIF4E and c-myc on tumor core,transition core and tumor-free core from 36 laryngeal carcinoma patients.The results were statistically analyzed.Results:The overexpression of eIF4E and c-myc protein levels suggests an increasing tendency from tumor-free core,transition core and tumor core;and shows an significant correlation of eIF4E and c-myc expression.Conclusion:The overexpression of eIF4E and c-myc cause the laryngeal carcinoma cell malignant transformation;the correlation of eIF4E and c-myc may provide a basis for gene therapy of laryngeal carcinoma.