OBJECTIVE:To investigate the effects of Ginkgo biloba extract (GBE) on proliferation and apoptosis of gastric cancer cell line SGC7901. METHODS:After the cells were cultured in 0,5,10,20,50,100 and 200 μg/ml GBE for 48 h,cell viability was determined by MTT method and inhibition rate was calculated. After the cells were cultured in 0,10,50 and 200μg/ml GBE for 48 h,flow cytometry was used to detect cell cycle distribution and the apoptosis rate. RESULTS:Following 48 h culture of cells in 5,10,20,50,100 and 200μg/ml GBE,the growth of cells were obviously inhibited in a dose-dependent man-ner. After 48 h culture of cells in 10,50 and 200 μg/ml GBE,the apoptosis rate was increased. CONCLUSIONS:GBE can inhibi-tion the proliferation of SGC7901,and induces it apoptosis,the former dominated.

PurposeTo evaluate the motion correction algorithm (snapshot freeze, SSF) and multi-cycle reconstruction on the imaging quality and interpretation of coronary CT angiography (CCTA).Materials and Methods Sixty patients with suspected coronary heart disease were divided into two groups according to the heart rate. Twenty-ifve patients with heart rate ≤65 beats per minute underwent prospectively ECG-gated CCTA on gemstone CT. Image quality and interpretability of standard (STD) and SSF reconstructions at 75% R-R interval were compared. Thirty-five patients with heart rate>65 beats per minute underwent retrospective ECG-gated CCTA. Image quality and interpretability of STD and SSF reconstructions at 45% and 75% R-R interval were compared. The image qualities and interpretability were assessed based on coronary artery segment, coronary artery bifurcation and overall coronary artery.Results For 25 patients with prospectively ECG gated CCTA, SSF reconstructions showed higher interpretability than STD reconstructions on per-segment level [96.3% (341/354)vs 90.7% (321/354),P<0.01]. Image qualities with SSF were higher than that with STD reconstructions for left anterior descending (LAD), left circumflex (LCX) and right coronary artery (RCA). There was no statistic significance for left main coronary artery (P>0.05). For 35 patients with retrospective ECG-gate CCTA, SSF reconstructions at 45% R-R interval showed higher interpretability (P<0.01,P<0.001). But there were no signiifcant difference for 75% R-R interval images (P>0.05). Image qualities with SSF were higher than that with single and double sector STD reconstructions (P<0.001). The image qualities were signiifcant different among SSF, single and double sector STD reconstructions for 45% R-R interval images of LM (P<0.01), but it was similar for 75% R-R interval images (P>0.05). There were signiifcant different for LAD, LCX and RCA on both 45% and 75% R-R interval images (P<0.01,P<0.001). Conclusion SSF may improve the image quality and interpretability of CCTA images using prospectively and retrospective ECG-gated techniques, especially for improving the image quality.

OBJECTIVE：Improve the synthetic method of diphenoxylate hydrochloride,which was more suitable for the industrial process.METHOD:N,N-bis(β-chloroethyl)-4-methyl phenyl sulfonylamine was used as starting material vialiquid-liquid phase transfer catalysis to prepare 1-(4-methyl phenyl)-sulfonyl-4-phenyl-4-piperidine cabonitrile,which by hydrolysis,esterification,condensation,salifying to yield diphenoxylate hydrochloride.RESULTS:The total yield ammounted to 51.8%.CONCLUSION:The method was suible for the industrial process.

To explore the clinical significance of C1q tumor necrosis factor-related protein-9 (CTRP9) in patients with cerebral infarction.Our data showed that the serum CTRP9 was significantly lower than that of control group,especially in patients with large artery atherosclerotic cerebral infarction.CTRP9 was first decreased and even lower from day 4 to day 10,then gradually elevated.Logistic regression analysis suggested that high CTRP9 level was a protective factor for cerebral infarction.Thus,CTRP9 could be a factor for further classification of cerebral infarction and provides a potential option for disease prevention and treatment.

Objective:To explore the application effect of data envelopment analysis(DEA)model in the safety and quality management of ventilators in intensive care units.Methods:Based on the Chanis-Cooper-Rhodes(CCR)dual model,by adding constraints,the input-oriented Bank-Carnes-Cooper(BCC)model was constructed to construct the DEA model.Among the 124 related items in the DEA model,20 high-level related items were identified to carry out ventilator quality control management related to clinical service efficiency.A total of 33 ventilators in clinical use in the intensive care unit(ICU)of Jiangsu Province Hospital from October 2021 to September 2023 were selected.Among them,the ventilators used from October 2021 to September 2022 were managed by traditional quality control management methods,and the ventilators used from October 2022 to September 2023 were managed by DEA model.The satisfaction scores,management quality scores and clinical efficiency scores of participants in ventilator use management were compared between the two management methods.Results:The satisfaction scores of medical staff,patients and equipment engineers for ventilator management using the DEA model management method were(96.68±2.25)points,(96.32±2.18)points and(95.66±2.54)points,respectively,which were higher than those of the traditional quality control management method,the difference was statistically significant(t=10.940,15.220,6.674,P＜0.05).The average scores of ventilator operation performance,inspection operation safety and timeliness using DEA model management method were(4.44±0.31)points,(4.53±0.37)points and(4.61±0.36)points,respectively,which were higher than those of the traditional quality control management method,the difference was statistically significant(t=12.692,14.979,17.025,P＜0.05).The average scores of ventilator work efficiency,ventilator response time efficiency and ventilator treatment efficiency using the DEA model management method were(4.49±0.32)points,(4.75±0.35)points and(4.68±0.32)points,respectively,which were all higher than those of the traditional quality control management method,with statistically significant differences(t=21.179,16.785,16.347,P＜0.05).Conclusion:The application of the DEA model in the management of ventilators in ICU can improve the efficiency of ventilator clinical service,improve the satisfaction of ventilator management personnel and the quality of ventilator management.

Objective:To investigate the MRI features of fibro-adipose vascular anomaly (FAVA).Methods:The clinical, pathological and MRI data of the FAVA patients confirmed clinically and pathologically in Henan Provincial People’s Hospital from January 2016 to June 2021 were retrospectively analyzed, including 17 females and 13 males, aged 4-53 (18.5±12.8) years.Through the analysis of the MRI images of FAVA performance, including the lesion area, shape, signal, the degree of reinforcement, inner structure, outer structure and other image characteristics, summarize the MRI features.Results:The lesions located at the lower leg (12 cases), thigh (12 cases), upper arm (4 cases), forearm (1 case) and trunk (1 case). Twenty-four case of lower limbs. All cases involved the muscular layer, including 21 cases of superficial muscle layer, 7 cases of deep muscle layer, and 2 cases of both. Twenty-three cases of superficial muscle layer. Most of the affected muscles were quadriceps femoris and gastrocnemius. Morphology: all lesions were intramuscular solid masses growing parallel to the long axis of the muscle. There were 11 cases of focal type, 11 cases of locally infiltrating type, and 8 cases of diffuse type. MRI findings: all lesions showed mixed signal. On T1WI, 28 cases showed cloud-like, band-like and patchy high signal on the background of medium and high signal. On T2WI-FS, all the 30 cases showed low to medium signal areas on the background of high signal, which were dendrimer, ribbon and cloud-like. The lesions showed moderate to obvious heterogeneous progressive enhancement. Twenty-seven lesions had different shapes of vascular shadow, and 28 lesions had drainage vein shadow adjacent to the lesions, 24 of which were located at the proximal end of the lesions. Fascial tail sign was found at the periphery of the lesions in 26 cases, of which 23 cases were located at the upper and lower ends of the lesions.Conclusion:FAVA is a complex vascular malformation with unclear pathological classification. MRI usually shows a solid mass in the superficial muscle layer of the lower limbs parallel to the long axis of the muscle, with cloud-like, band-like, and patchy hyperintensity on the background of high signal on T1WI, and dendritic, band-like, and cloud-like hypointensity on the background of high signal on T2WI-FS, which is helpful for the diagnosis of FAVA. Combined with the data of fascial tail sign, draining vein and clinical manifestations, the diagnosis of FAVA can be confirmed to a certain extent, which can provide reference and basis for clinical decision making.

Objective:To investigate the MRI features of fibro-adipose vascular anomaly (FAVA).Methods:The clinical, pathological and MRI data of the FAVA patients confirmed clinically and pathologically in Henan Provincial People’s Hospital from January 2016 to June 2021 were retrospectively analyzed, including 17 females and 13 males, aged 4-53 (18.5±12.8) years.Through the analysis of the MRI images of FAVA performance, including the lesion area, shape, signal, the degree of reinforcement, inner structure, outer structure and other image characteristics, summarize the MRI features.Results:The lesions located at the lower leg (12 cases), thigh (12 cases), upper arm (4 cases), forearm (1 case) and trunk (1 case). Twenty-four case of lower limbs. All cases involved the muscular layer, including 21 cases of superficial muscle layer, 7 cases of deep muscle layer, and 2 cases of both. Twenty-three cases of superficial muscle layer. Most of the affected muscles were quadriceps femoris and gastrocnemius. Morphology: all lesions were intramuscular solid masses growing parallel to the long axis of the muscle. There were 11 cases of focal type, 11 cases of locally infiltrating type, and 8 cases of diffuse type. MRI findings: all lesions showed mixed signal. On T1WI, 28 cases showed cloud-like, band-like and patchy high signal on the background of medium and high signal. On T2WI-FS, all the 30 cases showed low to medium signal areas on the background of high signal, which were dendrimer, ribbon and cloud-like. The lesions showed moderate to obvious heterogeneous progressive enhancement. Twenty-seven lesions had different shapes of vascular shadow, and 28 lesions had drainage vein shadow adjacent to the lesions, 24 of which were located at the proximal end of the lesions. Fascial tail sign was found at the periphery of the lesions in 26 cases, of which 23 cases were located at the upper and lower ends of the lesions.Conclusion:FAVA is a complex vascular malformation with unclear pathological classification. MRI usually shows a solid mass in the superficial muscle layer of the lower limbs parallel to the long axis of the muscle, with cloud-like, band-like, and patchy hyperintensity on the background of high signal on T1WI, and dendritic, band-like, and cloud-like hypointensity on the background of high signal on T2WI-FS, which is helpful for the diagnosis of FAVA. Combined with the data of fascial tail sign, draining vein and clinical manifestations, the diagnosis of FAVA can be confirmed to a certain extent, which can provide reference and basis for clinical decision making.

Objective:To explore the effects of psychological intervention based on resourcefulness theory on the management of aggression and violence attitude and resilience of emergency nurses.Methods:Totally 60 nurses who worked in the Emergency Department of the 904 Hospital, the People's Liberation Army Joint Logistic Support Force from January 2020 to December 2021 were selected by convenience sampling. According to the enrollment time, the nurses enrolled from January to December 2020 were included as the control group, and the nurses enrolled from January to December 2021 were included as the intervention group, with 30 nurses in each group. Nurses in the control group received routine psychological training, while nurses in the intervention group was trained with a psychological intervention program based on resourcefulness theory based on the training provided to the control group. The nurses were surveyed and the intervention effect was evaluated by Resourcefulness Scale, Management of Aggression and Violence Attitude Scale (MAVAS), Medical Professionals Resilience Scale (MeRS), and Nurses' Work Alienation Questionnaire (NWAQ) .Results:After intervention, the scores of Resourcefulness Scale, MAVAS and MeRS of nurses in the intervention group were higher than those in the control group, and the scores of NWAQ were lower than those in the control group, with statistical significance between the two groups ( P<0.05) . Conclusions:Psychological intervention based on resourcefulness theory can enhance the resourcefulness of emergency nurses, improve their management of aggression and violence attitudes, strengthen their deep understanding of work violence and their level of resilience, reduce their sense of alienation at work, and alleviate negative psychological emotions. Therefore, it is worth promoting in clinical practice.

【Objective】 To investigate the effect of two different blood transfusion strategies in non-shock stage of sever burn patients, so as to provide reference for clinical rational use of blood. 【Methods】 74 cases of severe burn patients in our hospital from July 2019 to December 2020 were randomly divided into restrictive transfusion group and liberal transfusion group. The differences of blood transfusion volume, red blood cell (RBC) count before and after blood transfusion, Hb value, incidence of transfusion adverse reactions, postoperative infection rate, length of hospital stay, and 30 day mortality between the two groups were retrospectively analyzed. 【Results】 1) The blood transfusion volume of the restricted blood transfusion group [(9.58±7.43)U] was statistically less than that of the liberal blood transfusion group [(22.24±20.08)U] (P<0.05). 2) The increase of Hb per unit of RBC in the restrictive transfusion group [(4.98±3.37)g/L] was higher than that in the liberal transfusion group [(3.28±3.12)g/L], and the difference was statistically significant. (P< 0.05). 3) There were no significant differences in postoperative infection rate, incidence of transfusion adverse reaction, length of stay and 30 day mortality between the two groups (P> 0.05). 【Conclusion】 Limited blood transfusion treatment for severe burn patients in non-shock stage can reduce the frequency and risk of blood transfusion and save blood resources, which is of great significance for rational and safe blood use in clinic.

Locally advanced rectal cancer(LARC)is associated with a high risk of local recurrence and distant metastasis,making it difficult to be cured by surgery alone.Neoadjuvant chemoradiotherapy followed by surgery is the standard treatment for LARC,with reduced local recurrence rates.However,neoadjuvant chemoradiotherapy is associated with patients' urogenital and sexual dysfunction,which severely affecting their quality of life.Therefore,determining the optimal timing of surgery to balance oncologic and functional outcomes is crucial and challenging.We proposed that choosing the optimal timing of surgery based on preoperative risk assessment of LARC is an effective strategy.The patients with low to moderate risk of recurrence can be considered to perform surgery directly or have preoperative chemotherapy followed by radical surgery.Patients with high risk of recurrence should extend neoadjuvant therapy before surgery to improve oncologic outcomes.In this study we explored the optimal timing of radical surgery for LARC,providing a new idea for individualized and precise treatment of LARC.