Objective To study the effects of arsenic trioxide ( As2 O3 ) on inhibiting the proliferation of pancreatic carcinoma cell lines. Methods The inhibiting rate of As2O3 and Fluorouracin(5-Fu) ,Gemcitabine(GEM) on pancreatic carcinoma cell lines PC-3 were detected by using CCK-8 assay. Results As compared with 5-Fu、GEM,the inhibiting rate of As2O3 was the highest one( P ＜ 0.01 or P ＜ 0.05). Conclusion As2O3 can inhibit pancreatic carcinoma cell lines PC-3 effectively in vitro. The effects of As2O3 on inhibiting the proliferation of pancreatic carcinoma cell lines was stronger than 5-Fu and GEM. This is possibly due to the extensive and unique anticancer mechanism of As2O3.

Objective To investigate clinical effects of early postoperative oral enteral nutrition on immune function for colorectal cancer patients,to provide a reference for clinical treatment.Methods We selected 90 colorec-tal cancer surgery patients from January 2012 to April 2015,and they were divided into two groups by random number method.50 cases in the study group were given early oral enteral nutrition,and 40 patients in the control group were given postoperative parenteral nutrition.Before and after treatment,the quality of life,complications,immunology indi-cators,nutrition indicators were compared in two groups.Results In the observation group,the postoperative fever, exhaust time,hospital stay,hospital costs,quality of life scores were (54.29 ±5.76)h,(57.89 ±5.95)h,(10.48 ± 1.63)d,(41 432.85 ±2 165.46)RMB,(79.23 ±5.17)points,which were significantly lower than those in the con-trol group,the differences were statistically significant (t =8.69,P =0.00;t =8.61,P =0.00;t =9.49,P =0.00;t =5.54,P =0.00;t =4.16,P =0.01);7d after the treatment,the IgA,IgG,IgM,CD +4 ,CD +4 /CD +8 in observation group were (1.92 ±0.49)g/L,(11.31 ±2.24)g/L,(0.99 ±0.21)g/L,(41.21 ±5.51)%,(1.72 ±0.32),which were better than those in the control group,the differences were statistically significant (t =2.05,P =0.04;t =2.11, P =0.04;t =2.12,P =0.04;t =3.64,P =0.01;t =2.23,P =0.03).In observation group,postoperative 7d Hb, TRF,ALB,PAB were (113.28 ±13.36)g/L,(3.02 ±0.39)mg/L,(38.97 ±3.15)g/L,(333.15 ±18.35)mg/L, which were better than those in the control group,the differences were statistically significant (t =3.45,P =0.01;t =2.18,P =0.03;t =2.32,P =0.04;t =3.21,P =0.01).7d after operation,the CRP level of observation group was(7.29 ±2.05)mg/L,which was significantly lower than that of the control group,the difference was statistically sig-nificant (t =4.22,P =0.01 ).The incidence rate of postoperative complications in the observation group was 26.00%,that of the control group was 40.00%,the difference was statistically significant (χ2 =4.52,P =0.01). Conclusion Early oral enteral nutrition in patients with colorectal cancer will help to improve immune function, nutritional support,reduce the inflammatory response,which will help postoperative recovery.

The supercondensed DNA, a special kind of topological structure of plasmid DNA, was firstly found in E. coli SD108(topA+ gyrB225). Now, this structure is also found in E. coli DM800(topA- gyrB225). The result indicates that the formation of supercondensed DNA is related with decrease of the activity of gyrase in vivo. Topoisomerase Ⅳ was proved to relax the supercondensed DNA completely in vitro, which suggested that the supercondensed DNA and the supercoiled DNA could transform to each other in cells. The supercondensed DNA samples were analyzed by atomic force microscopy and compared to supercoiled DNA. The results showed that the length of supercondensed DNA decreased about 30% and the width and height of double-strand increased about 60%, which indicates that the structure of double-strand of supercondensed DNA is much more similar to A-DNA than B-DNA. The results also showed that chloroquine intercalation did not change the supercoiling level of supercondensed DNA, but made it knot and compact.

Objective To investigate the regulatory effects of probiotics on ghrelin and their pro-tective effects on pulmonary function of children during acute lung injury.Methods Fifty children with acute lung injury were recruited form Henan Provincial People′s Hospital during 2010 to 2013 and randomly divided into two groups.In addition to regular therapy, those who received probiotics treatment were set up as the probiotics treatment group and the others were considered as the control group.Levels of ghrelin, sur-factant protein A( SP-A) , TNF-αand IL-6 in serum samples were measured before and 10 days after the cor-responding treatments.Each patient was analyzed by pulmonary function test and echocardiography.The vol-ume to peak expiratory flow ( VPEF) , ratio of time to reach peak tidal expiratory flow to total expiratory time ( TPTEF/TE) , mean arterial pressure ( MAP) and pulmonary artery pressure ( PAP) were recorded for sta-tistical analysis.Results The levels of SP-A, TNF-αand IL-6 in serum samples from the probiotics treat-ment group were decreased on day 10 as compared with those of the control group [(195.9±54.3) ng/ml vs (245.5±56.4) ng/ml, (382.0±56.4) pg/ml vs (440.7±46.8) pg/ml, (221.5±62.6) pg/ml vs (303.5 ±83.9) pg/ml;P<0.05] .Children from the probiotics treatment group showed higher values of VPEF and TPTEF/TE on day 10 as compared with those without probiotics treatment [(25.3±4.5) ml vs (23.8±4.6) ml, (29.5±4.3) %vs (26.8±4.7) %;P<0.05].Treatment of children with probiotics increased MAP and decreased PAP [(74.5±6.7) mmHg vs (71.9±6.9) mmHg, (25.5±6.4) mmHg vs (29.1±6.2) mmHg] .The levels of ghrelin in patients received probiotics treatment were higher than those of children without probiotics treatment [(329.3 ±49.6) pg/ml vs (296.6 ±48.5) pg/ml].The levels of ghrelin showed negative correlations with the levels of SP-A, TNF-α, IL-6 and PAP on day 10, but positive correla-tions with TPTEF/TE and MAP (P<0.05).Conclusion Use of probiotics to children with acute lung inju-ry could regulate the level of ghrelin, alleviate the inflammation of lungs and improve the recovery of lung function and circulation.Therefore, probiotics treatment had positive effects on the protection of pulmonary function.

Objective To establish an IT-based follow-up platform, and to explore its application effect in patients with ischemic stroke.Methods By constructing a follow-up model and a recurrence risk warning model for ischemic stroke patients, such a follow-up platform was established.Thanks to the retrospective comparative and analysis method, we built a study group comprising ischemic stroke patients discharged since the platform and a control group comprising 228 such patients discharged prior to the platform.These two groups were followed up by means of IT-based manner and traditional paper-based manner respectively at the first,third,sixth,ninth,and twelfth months since their discharge.These patients were analyzed in terms of their medication adherence,activities of daily living and recurrence rate.Results One year after the follow-up,32 cases were lost of contact in the study group and 42 cases from the control group.Medication adherence of the study group was higher than that of the control group at the sixth month (2.72 ±0.62), ninth month(2.86 ±0.37)and twelfth month(2.83 ±0.40)after discharge, with the differences being statistically significant(P <0.05).The recurrence rate of the study group at the ninth months(6.38%)and twelfth months(10.21%)after follow-up was lower than that of the control group,a difference being statistically significant(P<0.05).The difference of BI scores between the two groups was not statistically significant(P>0.05).Conclusions The IT-based follow-up platform could improve the medication adherence of ischemic stroke patients,and reduce the recurrence rate of ischemic stroke,but the effect of improving activities of daily living was still not significant.

Objective To study operative treatment of severe tibial pilon fracture.Methods Between March 2010 and September 2016,29 patients with severe pilon fracture received operative treatment and complete follow-up at Department of Orthopaedic Surgery,Maternal and Child Care Service Centre of Guangzhou Nansha District.They were 24 men and 5 women,aged from 23 to 62 years (average,40.3 years).According to AO/OTA classification,9 cases were type C1,12 type C2 and 8 type C3.There were 6 open and 23 closed fractures.Of them,27 were complicated with fibular fracture.Open reduction and intenal fixation was conducted in 22 cases and limited internal fixation combined with external fixation in 7.Results This cohort was followed up for an average of 15 months (from 12 to 25 mouths).All the fractures obtained union after an average of 16 weeks (from 8 to 28 weeks),but the union in 5 cases was delayed.According to American Orthopaedic Foot and Ankle Society (AOFAS) criteria for ankle and hind foot,16 cases were rated as excellent,9 as good,3 as fair,one as poor,yielding an excellent to good rate of 86.2％.The main complications included superficial necrosis of wound skin in 3 cases,which were cured by skin flap repair after wound treatment,and superficial and deep infection both in 2 cases,which were cured by dressing change.Conclusions Severe tibial pilon fractures should be treated according to their different types and severities of soft tissue injury,using different operative methods and timing.

OBJECTIVETo explore the feasibility of short-term neoadjuvant chemotherapy (NACT) in patients with advanced gastric cancer (AGC), and to compare clinical efficacy of short-term neoadjuvant chemotherapy with different ways.

METHODSClinical data of 310 AGC patients treated with one course of NACT using EOF regimen(epirubicin, oxaliplatin and fluorouracil plus calcium folinate) in our hospital from January 2008 to December 2011 were retrospectively analyzes. Efficacy was compared between regional arterial infusion chemotherapy and intravenously chemotherapy.

RESULTSAll the 310 AGC patients completed one course of NACT and none was interrupted by adverse events. Postoperative pathological remission rate was 33.9% (105/310) and 5 patients (1.6%) had complete pathological remission. The pathologic response rate in the regional arterial infusion chemotherapy group was higher than that in the intravenously chemotherapy group(42.4% vs. 23.6%, P = 0.001). Multivariate analysis revealed that chemotherapy method(HR=1.827, 95% CI:1.006-3.316, P = 0.048) was associated with significantly higher pathologic response.

CONCLUSIONSPathological response rate is quite low following short-term NACT. Regional arterial infusion chemotherapy with short-term NACT can improve the pathological response rate of advanced gastric cancer.

Antineoplastic Combined Chemotherapy Protocols ; administration & dosage ; therapeutic use ; Epirubicin ; Fluorouracil ; Humans ; Infusions, Intra-Arterial ; Leucovorin ; Neoadjuvant Therapy ; Organoplatinum Compounds ; Remission Induction ; Retrospective Studies ; Stomach Neoplasms ; drug therapy

Objective To observe the clinical value of cone-beam computed tomography (CBCT) combined with iGuide system in percutaneous transthoracic needle biopsy (PTNB) of pulmonary lesions.Methods A total of 30 patients with solitary lung lesion underwent PTNB procedures were enrolled.The needle path was planned with iGuide system and 3D CT-like MPR images after CBCT.A coaxial system with 18-gauge cutting needle was used for biopsy.Procedure related data,complications and radiation exposure of patients were recorded.Results Among 30 patients,malignant lesions were found in 24,and benign lesions were in 6 patients.On PTNB,28 patients were correctly diagnosed,1 case was with insufficient samples but obtained correct pathologic result with second biopsy,1 case was false-negative finding.The diagnostic accuracy,sensitivity,specificity,positive predictive value and negative predictive value of PTNB in diagnosis of lung diseases was 96.67％ (29/30),96.00％ (24/25),100％ (5/5),100％ (24/24) and 83.33％ (5/6),respectively.The mean procedure time was (13.03+3.61)min,and exposure dose was (7.95+4.57)mSv.After PTNB procedures,pneumothorax and hemoptysis occurred in 6 (6/30,20.00％) and 3 (3/30,10.00％) patients,respectively.Conclusion CBCT combined with iGuide system for guiding PTNB is accurate and safe with reasonable radiation exposure.

Objective This paper investigates the effect of a multi-physical field fusion intervention based on transcranial direct current stimulation(tDCS),transcranial magnetic stimulation(TMS)and music on mental fatigue.Methods After fatigue induction,10 subjects received blank group stimulation,music group stimulation and tDCS-TMS-Music stimulation,respectively.tDCS stimulation sites were located in the bilateral frontal regions of the subjects,and TMS stimulation sites were located in the bilateral occipital regions of the hindbrain.Heart rate variability and reaction performance were measured before and after each intervention to determine the elimination effect of different intervention programs on mental fatigue.Results Compared with the control group,the tDCS-TMS-Music group showed significantly greater improvements in subjective mental workload,response performance,and heart rate variability.Conclusion The results of this study support that tDCS-TMS-Music can effectively alleviate mental fatigue induced by long-term cognitive performance tasks,and the intervention effect is better than music intervention and resting-state relief at the same time.

Objective To evaluate the clinical efficacy of comprehensive treatment for synchronous primary advanced gastric and esophageal cancer by propensity score matching(PSM).Methods A total of 2 551 patients with advanced gastric cancer admitted to Jiangsu Province Hospital of Chinese Medicine from January 2013 to December 2022 were retrospectively analyzed.Among them,45 patients with synchronous primary esophageal cancer were distributed to the observation group,and 2 506 patients without esophageal cancer were distributed to the control group.Through the PSM method,the control group was matched with the observation group and the equilibrium samples of covariates between two groups were obtained.The overall survival(OS)between the two groups were compared.Results Both observation and control group contained 45 patients in this study.According to the treatment regimen,the patients in the observation group was divided into radical resection treatment subgroup(n=22)and chemoradiotherapy(CRT)subgroup(n=23).In the radical resection subgroup,4 patients underwent the simultaneous surgical resection of gastric and esophageal tumors through proximal gastrectomy with the Ivor Lewis operation.Eighteen patients underwent endoscopic submucosal dissection(ESD)of their esophageal tumors and gastric cancer radical resection.Radical resection of gastric cancer combined with preoperative chemoradiotherapy of esophageal cancer was performed in the CRT subgroup.Survival analysis showed that OS in the observation group was significantly shorter than that in the control group(P=0.042)and there was no significant difference in OS between the radical resection subgroup and the control group(P=0.799).The 1-,3-,and 5-year survival rates of the patients in the CRT subgroup were significantly lower than those of the control group(P=0.003).While the 1-,3-,and 5-year survival rates of the patients in the radical resection subgroup were not statistically significant,compared to those of the CRT subgroup(P=0.071).Conclusions Multidisciplinary and comprehensive treatment can significantly improve the prognosis of patients with synchronous primary advanced gastric and esophageal cancer.Radical resection of gastric cancer combined with ESD of esophageal cancer is an optional treatment for patients with gastric cancer complicated with early esophageal cancer.Radical resection of gastric cancer combined with CRT of esophageal cancer can improve the prognosis of patients with advanced gastric cancer complicated with unresectable esophageal cancer.