Pancreatic cancer （PC） has a high degree of malignancy and a 5-year survival rate of <10%， with the core molecular mechanisms of Kirsten rat sarcoma viral oncogene homolog （KRAS） mutations （90%）， inactivation of tumor protein p53/cyclin-dependent kinase inhibitor 2A/SMAD family member 4， and epigenetic dysregulation （including DNA methylation and non-coding RNA alterations）， which promotes the progression of PC. In recent years， breakthroughs have been made in targeted therapy， including the clinical application of KRASG12C inhibitors （sotorasib， adagrasib） and KRASG12D inhibitors， and the strategies targeting epidermal growth factor receptor， DNA repair （PARP inhibitors）， and immune microenvironment （combined therapies targeting PD-1 and PD-L1） have significantly improved the treatment outcome of PC. Nevertheless， drug resistance and tumor heterogeneity remain huge challenges. Precision medicine and combined therapies should be adopted in the future to improve the prognosis of patients.

Trauma registration is an important tool to record the process and timeline in the treatment of trauma patients. The operation of trauma database is of great significance for reducing the mortality of patients, promoting the construction of trauma treatment system, and providing reference for policy-making. Trauma registration system has been established in the United States, United Kingdom, Germany and other developed countries for many years. However, the domestic system is still at an initial stage, and there are problems like data deficiencies, data incoherence, no item of complications, no treatment data after discharge and limits of human and financial resources. Therefore, there is room for improvements in terms of personnel fixation, financial support and continuous data monitoring should be further improved. In this study, the authors summarize the traum registration system from aspects of basic situation both at home and abroad, data analysis, clinical value, operation mechanism and challenges so as to provide important data for clinical researches.

Objective: To explore the clinicopathological characteristics and prognostic factors of gastric neuroendocrine neoplasm (NEN). Methods: Clinicopathological parameters and follow-up data collected from 117 patients with gastric NEN at Tianjin Medical University Cancer Institute and Hospital from March 2011 to December 2017 were reviewed, classified, and graded according to World Health Or-ganization (WHO) 2010 classification. Clinicopathological characteristics of different types and grades of gastric NEN were compared and survival analysis was performed. Results: Among the 117 cases confirmed as gastric NEN, this entire cohort comprised 13 cases (11.1%) of neuroendocrine tumor (NET) G1, 6 cases (5.1%) of NET G2, 57 cases (48.7%) of neuroendocrine carcinoma (NEC), and 41 cases (35.1%) of mixed adenoneuroendocrine carcinoma (MANEC). Gastric NET G1 and G2 typically consisted of multiple small tumors with shallow invasion and infrequent lymphatic and distant metastases at early stages at the time of diagnosis. The treatment of patients with gastric NET included endoscopic submucosal dissection and radical surgical resection. Precursor neuroendocrine lesions were detected in most cases. The patients with gastric NET G1 and G2 had a good prognosis. Gastric NEC and MANEC mostly consisted of single large tumors with deep infiltration, and common lymphatic and distant metastases at advanced stages when the diagnoses were confirmed. All the patients with gastric NEC and MANEC underwent surgical resection, and most received adjuvant therapy. Histopathological changes of gastric NEC were characterized by large cells and poorly differentiated tumors, while gastric MANEC had various forms of neuroendocrine and adenocarcinoma components. The prognosis of patients with gastric NEC and MANEC was poor for both; however, the predictors of progression-free survival and overall survival were different between gastric NEC and MANEC. Conclusions: Gastric NEN are a group of heterogeneous tumors with different clinicopathological features and prognosis. More multicenter studies with large sample sizes are still needed to improve the classification of gastric NEN and explore the prognostic factors.

Blumea balsamifera resource is an important material foundation for the breeding,quality identification,genetic research,biotechnology research and agricultural production.It is also the material basis for sustainable development of Blumea balsamifera.In this paper,we reviewed the related research on Blumea balsamifera resources in China,and discussed existing problems of Blumea balsamifera resources,and put forward some suggestions on key research direction in the future,for peer reference and discussion in use and further study promotion of Blumea balsamifera resources.

Objective To understand non-medical person' s willingness of organ donation,and analyze its reasons.Methods Using convenient sampling method,540 people who had no medical background were surveyed.Results The rate of willingness for non-medical person to organ donation were 7.7％-35.9％.About 35.9％ were willing to donate organs to their family members.About 8.9％ were willing to donate corpse after their death.And 30.8％ of them were ready for both kind of donation.When asked about strangers,7.9％ of them wanted to donate live organs.29.2％ were willing to donate corpse after their death,and 7.7％ of them were ready for both kind of donation.The reasons for donation live and dead organs were saving lives and prolong life-span of others.Reasons for not willing to donate live organs were fearings for death,worring about body damage,shortened lifespan.Reasons for not willing to donate live organs were fearings for death,worring about body damage,influenced by manners and customs.Conclusions Due to the lack of acknowledge of organ donation,non-medical person was not willing to donate organs.Methods for improving organ donation rates are popularize knowledge of organ donation and transplantation,so as to enhance the recognition of the public.