Background: China is a high incidence area of esophageal cancer. Esophageal squamous cell carcinoma recurrence and mortality rates are relatively high. Recent studies show that the recurrence rate remains very high ev...Background: China is a high incidence area of esophageal cancer. Esophageal squamous cell carcinoma recurrence and mortality rates are relatively high. Recent studies show that the recurrence rate remains very high even through the implementation of lymph node expanding dissection. Methods and Results: In order to study the relationship between lymph node dissection number and survival of the patients with esophageal squamous cell carcinoma, 407 cases of esophageal cancer are selected in the First Affiliated Hospital of Xi’an Jiaotong University from January 2009 to June 2013. There were 15 cases without surgery, while the rest of the 392 patients were post-operation in follow-up. 54 patients were lost in follow-up, and the rate was 13.8%. Finally, there were 338 patients entered into our research. The median age was 58 (37 - 81), males accounted for 79%. The number of lymph node dissection is for a total of 2091, and a median of 5. Positive lymph nodes are 400, while the total positive rate is 19.1%. Conclusion: The number of lymph node dissection is divided into 3 groups that are 0 to 6, 7 to 11, 12 or more into three grades, and reduced number of lymph node dissection may prolong the survival (P < 0.05). The number of lymph node dissection should be as less as possible unless there is definitely positive lymph node metastasis.展开更多
Gilpinia wui Wang & Wei sp. nov. of Diprionidae is described from China. The species was ever mentioned as Gilpinia wui Xin, nom. nud. without description, figures and diagnosis, and the type was also not designat...Gilpinia wui Wang & Wei sp. nov. of Diprionidae is described from China. The species was ever mentioned as Gilpinia wui Xin, nom. nud. without description, figures and diagnosis, and the type was also not designated. The larvae of G. wui feed on Pinus tabulaeformis Carr. The new species is similar to G.massoniana G. Xiao, 1992 from China but differs in clypeus laterally yellow marked, the posterior femur yellowish, the angle formed by the dorsal line between the upper end of the second ctenidium and the lancet apex with the ventral line between the apex of the second serrula and the lancet apex about 25 degrees, the 6 th annulus clearly broader, the ventral apical margin of penis valve multitoothed and the larvae feeding on Pinus tabulaeformis.展开更多
基金supported by Hunan Provincial Innovation Foundation for Postgraduates (CX2017B398)the Scientific Innovation Fund for Graduates of Central South University of Forestry and Technology (CX2017A03)the National Natural Science Foundation of China (31970447,3167234)。
文摘Background: China is a high incidence area of esophageal cancer. Esophageal squamous cell carcinoma recurrence and mortality rates are relatively high. Recent studies show that the recurrence rate remains very high even through the implementation of lymph node expanding dissection. Methods and Results: In order to study the relationship between lymph node dissection number and survival of the patients with esophageal squamous cell carcinoma, 407 cases of esophageal cancer are selected in the First Affiliated Hospital of Xi’an Jiaotong University from January 2009 to June 2013. There were 15 cases without surgery, while the rest of the 392 patients were post-operation in follow-up. 54 patients were lost in follow-up, and the rate was 13.8%. Finally, there were 338 patients entered into our research. The median age was 58 (37 - 81), males accounted for 79%. The number of lymph node dissection is for a total of 2091, and a median of 5. Positive lymph nodes are 400, while the total positive rate is 19.1%. Conclusion: The number of lymph node dissection is divided into 3 groups that are 0 to 6, 7 to 11, 12 or more into three grades, and reduced number of lymph node dissection may prolong the survival (P < 0.05). The number of lymph node dissection should be as less as possible unless there is definitely positive lymph node metastasis.
基金partly supported by the Hunan Provincial Innovation Foundation for Postgraduate(CX2017B398)the Scientific Innovation Fund for Graduates of Central South University of Forestry and Technology(CX2017A03)+2 种基金the National Natural Science Foundation of China(31501885,31672344)the Innovation Platform Project of Hunan Provincial Universities(15K150)the Natural Science Foundation of Zhejiang Province(LY18C040001)
文摘Gilpinia wui Wang & Wei sp. nov. of Diprionidae is described from China. The species was ever mentioned as Gilpinia wui Xin, nom. nud. without description, figures and diagnosis, and the type was also not designated. The larvae of G. wui feed on Pinus tabulaeformis Carr. The new species is similar to G.massoniana G. Xiao, 1992 from China but differs in clypeus laterally yellow marked, the posterior femur yellowish, the angle formed by the dorsal line between the upper end of the second ctenidium and the lancet apex with the ventral line between the apex of the second serrula and the lancet apex about 25 degrees, the 6 th annulus clearly broader, the ventral apical margin of penis valve multitoothed and the larvae feeding on Pinus tabulaeformis.
