Objective To observe the effect of edaravone pretreatment on the lung injury during one lung ventilation of patients undergoing thoracoscopic surgery.Methods Forty male patients diagnosed of lung cancer (aged 47-65 years,height 165-183 cm,weight 64-85 kg,BMI<30 kg/m2 ,ASA gradeⅠorⅡ)who were scheduled for thoracoscopic pulmonary resection surgery were randomly divided into two groups(n =20 each):control group (group C)and edaravone group (group E).In group E edaravone 30mg(dissolution in normal saline 100 ml)was administered within 30 min before surgery.In group C nor-mal saline 100 ml was administered within the same time.PET CO2 and peak airway pressure (Pmax)were recorded during operation,venous blood samples were taken before skin incision and at the end of operation for detection of the concentration of IL-8,IL-10,TNF-α and SP-A.Results There were no significant difference in PET CO2 and Pmax between the two groups..Compared with T1 ,concentration of IL-8,IL-10, TNF-αand SP-A all increased significantly in both groups on T6 (P <0.05).Compared with group C,IL-8, TNF-αand SP-A levels of T6 in group E were lower significantly (P < 0.05 ).There was no significant differences in the levels of IL-10 between the two groups.Conclusion Edaravone can inhibit oxidative stress and inflammatory reaction during one lung ventilation in patients underwent thoracoscopic surgery.

Objective To investigate the posttraumatic stress disorder(PTSD) and ethical decision-making in nurses suffered workplace violence, and analyze the relmionship between them. Methods Totally 340 nurses suffered workplace violence were questionnaired by the PTSD Scale and the Ethical Decision- making Scale. Results The incidence rate of PTSD was 17.06%(58/340), the total score of PTSD was (38.77± 13.57).The scores of ideal ethical practice, actual ethical practice and ethical decision- making in the PTSD group were 121.36±8.33, 105.56±7.76, 226.92±15.52, and were significantly lower than that in the non-PTSD group (140.60±9.01, 117.65±8.41, 258.27±16.73) (t=-14.996, -10.015, -13.153, P < 0.01). The score of PTSD was negtively correlated with the scores of ideal ethical practice, actual ethical practice and ethical decision- making (r=-0.415, -0.431,-0.420, P < 0.05). Conclusions The PTSD probably occurred after workplace violence, nursing administrators should pay close attention to the PTSD and therefore improve nurses′ethical decision-making.

Objective:To compare the dose distribution among CyberKnife, Tomotherapy, Edge, Triology and γ-knife in stereotactic body radiation therapy (SBRT) for pancreatic cancer.Methods:Clinical data of 10 panreatic cancer patients receiving CyberKinife treatment were retrospectively analyzed. The treatment plans were designed by five apparatuses from five centers according to the uniform requirement. All plans were transferred to MIM system for the extraction of parameters, which mainly included D min, D mean and D max of PTV, conformity index (CI), new conformity index (nCI), homogeneity index (HI), gradient index (GI), coverage, D max and dose-volume of the stomach and bowel. Results:The best CI and nCI were obtained in Triology ( P<0.001), and the worst HI was found in γ-knife ( P<0.001). The best GI was found in CyberKnife, followed by γ-knife and Tomotherapy, and Edge showed the worst GI ( P<0.001). The highest D min of PTV was found in both Edge and Triology, while lower D min of PTV was found in CyberKnife and Tomotherapy ( P<0.001). Additionally, γ-knife provided the highest D mean and D max of PTV ( P<0.001). Regarding the organs at risk, the lowest D max and D 5cm 3 of the bowel ( P<0.001), D max of the stomach ( P=0.003), D max( P=0.001), D 5cm 3 ( P<0.001) and D 10cm 3 ( P=0.005) of the duodenum, D max( P<0.001) and D 0.35cm 3 ( P<0.001) of the spinal cord were found in CyberKnife. The highest D max of the bowel was found in γ-knife. Furthermore, the highest D 5cm 3 of the duodenum was demonstrated in Edge ( P<0.001) and Tomotherapy provided the highest D max( P<0.001) and D 0.35cm 3 of the spinal cord ( P<0.001). Conclusions:All five radiotherapy apparatuses can meet the requirement of SBRT for pancreatic cancer. More rapid dose fall-off could be obtained via CyberKnife and γ-knife. Triology and Edge provide better target conformity. CyberKnife can better protect the gastrointestinal tract.

Embryo is regarded as a semi-allograft for carrying paternal genetic information. It can escape the attack from maternal immune system and successfully implant into the uterus, which mainly relies on the establishment of immune tolerance at the maternal-fetal interface. The maternal-fetal interface is the basis for the connection and material exchange between the mother and fetus. The mechanisms of immune re-sponses at this interface are the key to the maintenance of normal pregnancy. Immunomodulatory molecules expressed at the maternal-fetal interface are vital for immune tolerance. Studies have shown that sialicacid-binding immunoglobulin-like lectins (Siglecs) are abundantly expressed at the maternal-fetal interface and play an important role in immune regulation. Siglecs are important members of the typeⅠimmunoglobulin-like superfamily. By binding with the sialic acid residues on the side chains of glycoproteins or glycolipids, Siglecs involve in immune regulation, the activation and proliferation of immune cells and immune cell-medi-ated physiological and pathological processes. Present research on the expression of Siglecs in the maternal-fetal interface is mainly focused on Siglec-6 and Siglec-10, while other Siglecs are less studied. Siglecs, such as Siglec-6 and Siglec-10, might involve in the regulation of immune tolerance at the maternal-fetal in-terface through binding to different ligands. This article briefly reviewed the expression of Siglecs and their ligands at the maternal-fetal interface and their roles in immune tolerance.