Objective: To prepare dexketoprofen trometamol hydrogel patches, optimize the formula and evaluate in vitro transdermal properties.Methods: Dexketoprofen trometamol hydrogel patches were prepared with NP-800 as the hydrogel patch carrier, aluminum hydrochloride as the crosslinking agent, EDTA as the crosslinking modifier and glycerol as the moisturizing agent.The formula was screened by orthogonal design with the initial viscosity, holding force, peel strength and 12 h cumulative transdermal quantity as the evaluation indices to screen out the best formula.The transdermal absorption test was carried out with an improved Franz diffusion cells to compare the enhancement of Aznoe, oleic acid and menthanol on dexketoprofen trometamol hydrogel patches.Results: The best formula was as follows: the mass percentage of NP-800, glycerol, glycerol and EDTA was 5%, 0.3% , 25% and 0.15% , respectively.The transdermal enhancers had transdermal enhancement on dexketoprofen trometamol, and among them, 3% Azone had the most significant enhancement with the enhancing rate of 3.26.Conclusion: The preparation and formula of dextroxyprofen trometamol hydrogel patches are stable, reasonable and feasible.

Objective To evaluate the efficacy and safety of holmium laser for treatment ureteric stones in patients with acute obstructive renal impairment.Methods Thirty-two patients were included in this study.None of the patients had a ureterie stent or nephrostomy tube before the ureteroseopy.All patients were treated with holmium laser.Results 30 patients with ureter stones in middle and inferior segment were free of stones by ureteroscopic lithotripsy.The success rate for treatment of ureteral stones lithotripsy and calculus removal was 93.7%.Ureter stones located in superior segment in two patients were sent back pelvis.Extracorporeal shock-wave lithotripsy were performed.The two patients were free of any stone fragmens a month later.In all patients, including the five with obstructive anuria,the renal impairment resolved or improved as evidenced by normalization or fall in blood urea and creatinine.100% of the patients were free of any stone fragments postoperatively.Conclusion A holmium laser was a safe and effective modality of ureteroscopic lithotripsy in patients with significant renal impairment or even obstructive anuria.It also had merits of small wound and fast postoperation recovery.Treatment of both-side ureteral stones could be handled at the same time.The use of holmium laser by ureteroacopy could be considered the first choice in patients with acute obstructive renal impairment.

0.05). Second and third generation of the implanted tumor were obtained in 8 nude mice respectively,and all transplanted tumors survived. Liver,bone and lung metastasis were found in 100% of nude mice between 10 w～14 w. [WT5”HZ] Conclusions This nude mouse HCC model holds the biologic features of human HCC and serves the purpose of in vivo study investigation .

General education curriculum in Wuhan University has entered "3.0 era", in which general education curriculum of oncology has opened several cycles and been loved by the majority of students, meanwhile some problems have come up. In this article, the background of setting up general education curriculum of oncology in Wuhan University is reviewed. By sorting out teaching concepts and curriculum objectives, teaching content and organizational processes, teaching methods and evaluation methods and preliminary teaching effects, we emphatically discuss the role of clarifying teaching goals, optimizing curriculum designs, compiling basic teaching materials, improving teaching methods and reforming the evaluation system in promoting the setting and development of general education curriculum of oncology in comprehensive universities.

Objective To investigate the reversal of MDR by using anti-MDR1 ribozyme N2A + tRNAimet-iMDR1- sRz (sRz) in nude mice bearing human hepatocellular carcinoma. Methods The nude mice model with implanted human hepatocellular carcinoma was randomly devided into group A ( saline 40?l + Lipofect AMINE?000 10?l), B( N2A + tRNAimet10?g/40?l + Lipofect AMINE?000 10?l) and C(sRz 10?g/40?l + Lipofect AMINE?000 10?l). After one week, mice was peritoneally injected E-ADM 15 mg?kg-1 once a week for 4 weeks. The size of tumors was measured with B-ultrasound and the tumor inhibition rate was calculated. One week after chemotherapy mice was sacrificed and MDR1 mRNA and P-gp were investigated with RT-PCR and Western blot. Results In group C tumor shrank upon each chemotherapy (F = 659. 99, P

Objective To determine the feasibility and toxicity of the addition of cetuximab to paclitaxel,cisplatin,and concurrent intensity modulated radiation therapy (IMRT) for patients with esophageal squamous cell carcinoma (ESCC).Methods Nineteen patients with stage Ⅰ to Ⅲ ESCC,without distant organ metastases,were eligible.All patients received cetuximab,an initial dose of 400 mg/m2 in the first week followed by weekly injection of 250 mg/m2,paclitaxel 45 mg/m2 and cisplatin 20 mg/m2 weekly for 7 weeks with IMRT of 59.4 Gy/33 fractions.Results Two patients discontinued because of severe adverse events.Seventeen patients completed the planned treatment protocol.Of whom,12 patients achieved completeremission.The objective response rate was 100％.A median follow-up time was 29.3 months.The 1-year overall survival and recurrence-free survival rate was 100％ and 82％,respectively.Main toxicities including myelosuppression,esophagitis and skin rash happened in 19 patients.Grade ≥2 neutropenia,esophagitis and skin toxicity noted rates was 89％,84％ and 58％,respectively.Local recurrence was found in two patients.Neck lymph node and lung metastasis found in one patient.Conclusions Cetuximab,when combined with paclitaxel,cisplatin and IMRT,is efficient and safe for esophageal squamous cell carcinoma,Further clinical study is needed.

Hepatocellular carcinoma (HCC) is malignant tumor with the fourth incidence rate and the second mortality rate in China, and patients with advanced stage have lost the chance of surgical treatment, short survival period and extremely poor prognosis. Histopathological biopsy is the gold standard for clinical diagnosis of malignant tumors, but histopathological biopsy is not only invasive, but also obtains fewer tissue samples, which does not reflect the heterogeneity of tumors, and makes it difficult to dynamically monitor the progression of tumors or the efficacy of treatment. Therefore, it is clinically important to find new non-invasive strategies for early detection of HCC and to monitor the efficacy of HCC. Circulating tumor DNA is a non-invasive liquid biopsy method with simple sampling and can dynamically monitor the genomic changes of tumors, which has great application value in early diagnosis, therapeutic efficacy monitoring, and prognostic evaluation of HCC.

With technological advancement and the growing demand for renewable energy, research and applications of new energy materials are becoming increasingly widespread. Typical new energy materials include lithium-ion battery materials, nanomaterials, nuclear energy materials and magnetic materials, etc., each of which has special toxicological characteristics. These materials may pose potential toxicological risks in the process of resource exploitation, production, transportation, usage, recycling or disposal, which have negatively impact on human health and the ecological environment. Occupational exposure is the main route of energy materials exposure, with potential health hazards on workers during the processes of production, transportation, recycling, and disposal. Among them, the disassembled batteries in the recycling or waste disposal process requires quality control, which is the high-risk position of occupational hazards. At present, the toxicology study of typical new energy materials mainly focuses on the potential impact of lithium-ion battery materials and nanomaterials on human health and the environment, but there are still limitations and challenges. In the future, it is necessary to further strengthen the human health risk management and prevention and control of new energy materials to protect human health and sustainable development.

Objective To summarize the outcomes and prognostic factors in esophageal cancer (EC) patients.Methods A total of 307 EC patients of stages Ⅱ-Ⅲ were treated with concurrent chemoradiotherapy in our hospital from September 2006 to July 2014.There were 73 patients with stage Ⅱ and 234 with stage Ⅲ.The radiotherapy dose was 50-70 Gy (median 60 Gy).Concurrent chemoradiotherapy were used with fluorouracil plus platinum (PF,166),paclitaxel plus platinum (TP,82) or platinum only (P,59).The Kaplan-Meier method was used to calculate overall survival (OS) and progression-free survival (PFS) rates,the log-rank test was used for survival difference analysis and univariate prognostic analysis.The Cox regression model was used for multivariate prognostic analysis.Results The 1-,3-5-year OS and PFS rates were85.6％,53.8％,36.9％ and 74.6％,43.7％,33.1％,respectively.The median OS and PFS were 41.6 months and 29.8 months.The univariate analysis indicated that T stage,N stage,clinical stage,lesion location,lesion length and chemotherapy regimen were prognostic factors for OS and PFS (P=0.007 and 0.013,0.000 and 0.000,0.000 and 0.000,0.002 and 0.000,0.141 and 0.005,0.018 and 0.165).Multivariate analysis showed that T stage,N stage,lesion location and chemotherapy regimen were prognostic factors for OS (P =0.024,0.000,0.007 and 0.028),lesion location,lesion length and N stage were prognostic factors for PFS (P=0.004,0.033 and 0.035).The median OS and PFS for EC patients treated by total dose 50-60 Gy,＞60-70 Gy were 47.4 months,37.8 months (P=0.469) and34.1 months,25.1 months (P=0.0.233),therewere no statistic difference.Conclusions The outcome of EC patients treated with concurrent chemoratherapy could obtain a long-term survival,combination chemotherapy is superior to single drug,there are no statistical difference between high-dose and low-dose,and the acute toxic effects can be tolerated.

Objective: To investigate short-term efficacy of laparoscopic spleen-preserving splenic hilus lymphadenectomy and left epigastrium mesogastric excision for advanced proximal gastric cancer based on mesangial anatomy. Methods: A case series study was carried out. Case inclusion criteria: (1) patient was confirmed as gastric adenocarcinoma by gastroscopic biopsy before operation; (2) locally advanced gastric cancer was confirmed by abdominal CT before operation; (3) no distant metastases such as liver, lung, and posterior peritoneal lymph nodes, and no tumor directly invading the pancreas, spleen, liver, and colon were verified by superficial lymph node ultrasound, chest and abdominal CT before operation;(4) total gastrectomy or proximal gastrectomy plus D2 lymphadenectomy were performed, and R0 resection was confirmed by postoperative pathology. Exclusion criteria: (1) intraperitoneal dissemination or distant metastasis was found during laparoscopic exploration; (2) No.10 lymph nodes were significantly enlarged or fused into clusters; (3) pathological diagnostic data were incomplete. According to above criteria, the clinicopathological data of 36 patients who underwent laparoscopic spleen-preserving No.10 lymphadenectomy and left epigastrium mesogastric excision based on interspace anatomy for advanced proximal gastric cancer in The First Affiliated Hospital of Zhengzhou University from June 2017 to March 2018 were retrospectively collected and analyzed. The intraoperative conditions, postoperative recovery and complications of patients were analyzed. Results: In 36 patients, the mean age was (59.8±8.0) years, the mean BMI was (23.9±3.5) kg/m², and 8 cases (22.2%) received preoperative chemotherapy. All the patients underwent successfully the laparoscopic spleen-preserving splenic hilus lymphadenectomy and left epigastrium mesogastric excision. In the examination of postoperative resected specimens, it was found that the mesangial boundary of the upper and posterior part of the stomach was smooth, indicating the efficiency of complete mesangial resection. No case was converted to open operation. The mean time of lymph node dissection and mesangial resection was (34.2±11.4) minutes. The mean blood loss during operation was (44.8±21.3) ml. The mean number of lymph node dissection per patient was 45.6±17.6. The mean number of No. 11p+11d lymph node dissection was 3.1± 2.8 per patient, and 7 patients were pathologically positive with metastasis rate of 19.4% (7/36). The mean number of No.10 lymph node dissection was 2.9±2.5 per patient, and 2 patients were pathologically positive with metastasis rate of 5.6% (2/36). The time to postoperative flatus was (3.8±0.6) days, time to removal of nasogastric was (1.9±0.7) days, time to the first intake of fluid was (3.0±0.4) days, time to removal of drainage tube was (6.0±1.2) days. Postoperative mean hospital stay was (12.8±4.0) days. One case (2.7%) developed pulmonary embolism and 1 case (2.7%) developed gastroplegia after operation. The morbidity of postoperative complication was 5.6% (2/36). No operative site infection, postoperative bleeding and death within postoperative 30-day were observed. All the 36 patients were followed up and the median follow-up was 18 months (12-28 months). Seven patients died of tumor relapse and metastasis (3 cases died within postoperative 1 year) and another 1 case developed colonic cancer 17 months after operation. Conclusion Laparoscopic spleen-preserving splenic hilus lymphadenectomy and left epigastrium mesogastric excision for advanced proximal gastric cancer based on mesangial anatomy is safe and feasible.