Objective:To investigate the clinical efficacy of pancreaticoduodenectomy with TRIANGLE operation in the treatment of pancreatic head cancer.Methods:The retrospective cohort study was conducted. The clinicopathological data of 51 patients with pancreatic head cancer who were admitted to the Sichuan Provincial People′s Hospital, Affiliated Hospital of School of Medicine of University of Electronic Science and Technology of China from January 2017 to July 2018 were collected. There were 33 males and 18 females, aged from 42 to 74 years, with a median age of 56 years. Of the 51 patients, 24 cases undergoing standard pancreaticoduodenectomy, in which No.12, 13 and 17 lymph nodes were dissected, combined with transcatheter arterial infusion chemo-therapy (TAI) were allocated into the standard group, and 27 cases undergoing pancreaticoduo-denectomy with TRIANGLE operation, in which No.7, 8, 9, 12, 13, 16, 17 lymph nodes were dissected, combined with TAI were allocated into the TRIANGLE group, respectively. Observation indicators: (1) intraoperative conditions of the two groups; (2) postoperative conditions of the two groups; (3) follow-up and survival. Follow-up was conducted using outpatient examination and telephone interview once three months to detect tumor recurrence and metastasis and survival of patients up to July 2021 or the death of patient. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was analyzed using the t test. Measurement data with skewed distribution were represented as M(range), and comparison between groups was analyzed using the chi-square test or the Fisher exact probability. Comparison of ordinal data was analyzed using the rank sum test. Kaplan‐Meier method was used to calculate the survival rate and median survival time and draw survival curve. Log‐Rank test was used for survival analysis. Results:(1) Comparison of intraoperative conditions between the two groups. The operation time, volume of intraoperative blood loss, cases with intraoperative blood transfusion were (501±61)minutes, (563±278)mL, 4 in the standard group, versus (556±46)minutes, (489±234)mL, 6 in the TRIANGLE group, respectively. There was a significant difference in the operation time between the two groups ( t=3.62, P<0.05) but there was no significant difference in the volume of intraoperative blood loss or cases with intraoperative blood transfusion between the two groups ( t=1.03, χ2=0.25, P>0.05). (2) Comparison of postoperative conditions between the two groups. Of the 51 patients, 30 had 50 times of postoperative complications, including 18 times of grade Ⅰ complications of Clavien-Dindo classification, 29 times of grade Ⅱ complications of Clavien-Dindo classification, 2 times of grade Ⅲa complications of Clavien-Dindo classification, 1 time of grade Ⅲb complications of Clavien-Dindo classification, respectively. Cases with postoperative complications, cases with delayed gastric emptying, cases without or with pancreatic fistula as class A or class B, cases with biliary fistula, cases with bleeding, cases with diarrhea were 15, 4, 13, 7, 4, 4, 2, 2 in the standard group, versus 15, 6, 14, 10, 3, 4, 1, 3 in the TRIANGLE group, respectively. There was no significant difference in cases with postoperative complications, cases with delayed gastric emptying, cases with pancreatic fistula between the two groups ( χ2=0.16, 0.02, Z=-0.04, P>0.05) and there was no significant difference in cases with biliary fistula, cases with bleeding, cases with diarrhea between the two groups ( P>0.05). Cases with complications as Clavien-Dindo grade Ⅰ, grade Ⅱ, grade Ⅲ were 10, 11, 2 in the standard group, versus 8, 18, 1 in the TRIANGLE group, showing no significant difference between the two groups ( Z=-0.67, P>0.05). The duration of postoperative hospital stay was (23±8)days in both of the standard group and the TRIANGLE group, showing no significant difference between the two groups ( t=0.31, P>0.05). (3) Follow-up and survival. All the 51 patients were followed-up for 6 to 54 months, with a median follow-up time of 17 months. The postoperative 1-year overall survival rate was 75.0% and 81.5% in the standard group and the TRIANGLE group, respectively. The postoperative 3-year overall survival rate was 12.5% and 22.2% in the standard group and the TRIANGLE group, respectively. The median postoperative survival time was 15.00 months (95% confidence interval as 12.63 to 17.37 months) and 21.00 months (95% confidence interval as 15.91 to 19.62 months) in the standard group and the TRIANGLE group, respectively. There was a significant difference in survival of patients between the two groups ( χ2=4.30, P<0.05). Cases with tumor recurrence during post-operative 1 year and 3 year were 9 and 20 in the standard group, versus 6 and 15 in the TRIANGLE group, respectively. There was no significant difference in cases with tumor recurrence during postoperative 1 year between the two groups ( P>0.05) and there was a significant difference in cases with tumor recurrence during postoperative 3 year between the two groups ( P<0.05). Conclusion:Compared with standard pancreaticoduodenectomy, pancreaticoduodenectomy with TRIANGLE operation can prolong the median survival time of patients with pancreatic head cancer without increasing surgical related complications.

Objective : To investigate the effect of exposure to low concentrations of benzene on miR-155 and miR-223 expression in peripheral blood lymphocytes among workers with benzene exposure. Methods : A hundred male employees at a risk of exposure to benzene (the exposed group) were randomly sampled from two small metal products manufacturing enterprises and one medium-sized chemical raw material and chemical products manufacturing enterprise in Ningbo City, Zhejiang Province, and 60 age-matched male employees without benzene exposure were randomly selected as the unexposed group. Age, body mass index ( BMI ), smoking status, alcohol consumption, disease history, medication history and routine blood testing results of subjects were collected using a questionnaire survey. The 8-hour time weighted average concentration ( CTWA ) of benzene was measured in the workplace using thermal desorption gas chromatography, and the urine 8-hydroxy-2' deoxyguanosine ( 8-OHdG ) levels were determined using high-performance liquid-chromatography tandem mass spectrometry (HPLC-MS/MS). The miR-155 and miR-223 expression was quantified in peripheral blood lymphocytes using quantitative fluorescent reverse transcription-polymerase chain reaction assay, and the factors affecting miR-155 and miR-223 expression were identified using multivariable logistic regression analysis. Results : The subjects in the exposed group had a mean age of ( 31.17±7.30 ) years, and were exposed to low concentrations of benzene ( CTWA, 0.05 to 0.30 mg/m3 ) , while the subjects in the unexposed group had a mean age of ( 32.52±6.15 ) years. There were no significant differences between the exposed and unexposed groups in terms of age, BMI, proportion of smokers or proportion of alcohol consumers ( P>0.05 ). There was no significant difference in the median relative miR-155 expression between the exposed and unexposed groups ( 0.953 vs. 1.293, P>0.05 ), and lower median relative miR-223 expression was quantified in the exposed group than in the unexposed group ( 0.540 vs. 1.433, P<0.05 ). Multivariable logistic regression analysis revealed that down-regulation of miR-223 expression correlated with exposure to benzene ( OR=2.719, 95%CI: 1.308-5.651 ). Conclusion Down-regulation of miR-223 expression may be associated with exposure to low concentrations of benzene.

Objective:To investigate the correlation between serum uric acid level and heart rate variability (HRV) in patients with acute ischemic stroke.Methods:Patients with acute ischemic stroke admitted to the Department of Neurology, the First Affiliated Hospital of Nanjing Medical University from July 2017 to July 2019 were enrolled retrospectively. They were divided into 4 groups (Q1, Q2, Q3, and Q4) according to the sex-specific serum uric acid quartiles. The demographic data, baseline clinical data, laboratory indicators and HRV recorded by 24-h dynamic electrocardiogram in each group were compared. The independent correlation between HRV time domain parameters RR (normal-to-normal, NN) interval standard deviation (standard deviation of the NN intervals, SDNN), RR interval mean standard deviation (standard deviation of the average NN intervals, SDANN) and serum uric acid level was analyzed through multiple linear regression model.Results:A total of 141 patients were enrolled in the study, including 100 males (70.92%), aged 61.55±12.92 years. The median baseline National Institutes of Health Stroke Scale (NIHSS) score was 2 (interquartile range: 1-4), and the serum uric acid level was 302.87±73.48 μmol/L. There were significant differences in the NIHSS score ( P<0.034), the proportion of patients with hypertension ( P=0.015), the estimated glomerular filtration rate ( P<0.001), and the HRV time domain parameters (all P<0.001) between each quartile group. The proportion of patients with low HRV (SDNN <100 ms) in the lowest serum uric acid level quartile group was significantly higher than that in other quartile groups ( P<0.05). Multiple linear regression analysis showed that serum uric acid levels were significantly and positively correlated with SDNN (standardized β=0.321, P<0.001) and SDANN (standardized β=0.266, P=0.001). Conclusions:The low level of serum uric acid in patients with acute ischemic stroke indicates that HRV is low, which may suggest that the mechanism of oxidative stress is involved in the decrease of HRV in patients with acute ischemic stroke.

Objective:To investigate the neutrophil to lymphocyte ratio (NLR) and clinical manifestations, imaging manifestations and plasma D-dimer in cerebral venous sinus thrombosis (CVST) patients with headache as the first symptom.Methods:CVST inpatients with headache as the first symptom admitted to the First Affiliated Hospital of Nanjing Medical University from January 2012 to December 2019 were enrolled retrospectively as case group. In the same period, patients with similar headache symptoms and healthy subjects were included consecutively as control group. The differences of demographic data, biochemical indexes, blood routine indexes and plasma D-dimer were compared among the three groups. Multivariate logistic regression analysis was used to identify the independent correlation between NLR and plasma D-dimer and CVST with headache as the first symptom. According to the median NLR, patients with CVST were divided into low NLR group and high NLR group, and the differences in clinical manifestations, imaging manifestations and plasma D-dimer were compared between the two groups. Multiple linear regression analysis was used to determine the independent correlation between the reciprocal of NLR and plasma D-dimer and clinical features. Results:A total of 51 CVST inpatients with headache as the first symptom, 54 headache controls and 53 healthy controls were included in the study. There were significant differences in triglyceride ( P=0.002), fasting blood glucose ( P=0.044), serum albumin ( P=0.013), uric acid ( P=0.010), plasma D-dimer ( P<0.001), proportion of D-dimer negative patients ( P<0.001), mean corpuscular volume ( P=0.015), white blood cell count ( P<0.001), neutrophil count ( P<0.001), lymphocyte count ( P=0.005), monocyte count ( P=0.004), mean platelet volume ( P=0.010), platelet distribution width ( P=0.029), NLR ( P<0.001) and lymphocyte to monocyte ratio ( P<0.001) among the three groups. Post-hoc analysis showed that plasma D-dimer and NLR in the case group were significantly higher than those in the two control groups (all P<0.001). Multivariate logistic regression analysis with the headache control group and the healthy control group as references showed that NLR and plasma D-dimer were significantly and independently correlated with CVST with headache as the first symptom (all P<0.05). According to the median NLR (4.817 6), the case group was divided into low NLR group and high NLR group. The comparison showed that the onset time ( P=0.041), the proportion of patients with headache as the only symptom ( P=0.016) and the proportion of plasma D-dimer negative patients ( P=0.002) in the low NLR group were significantly higher than those of the high NLR group, and the proportion of patients with headache complicated with disturbance of consciousness ( P=0.032), plasma D-dimer ( P<0.001) and fasting blood glucose ( P<0.001) were significantly lower than those in the high NLR group. With the reciprocal of NLR as the dependent variable, multiple linear regression analysis showed that the reciprocal of NLR was independently negatively correlated with plasma D-dimer ( R=-0.521, P<0.001), and independently positively correlated with headache as the only symptom ( R=0.280, P=0.049). Conclusions:NLR was significantly increased in CVST patients with headache as the first symptom. It might help early diagnosis and clinical feature prediction of CVST patients.

Objective: To explore the action mechanism of miR-139-5p inhibiting proliferation and invasion of epithelial ovarian cancer (EOC) cells by targetedly regulatingNotch1.Methods: A total of 24 pairs of EOC tissues and its corresponding para-cancerous tissues from patients, who underwent surgical resection in the DepartmentofGynecology,Nanyang Central Hospital of Henan Province, were collected for this study; in addition, human ovarian cancer cell lines (SKOV3, ES2, HEY-T30) and human ovarian epithelial cell line IOSE80 were also collected. Real-time quantitative PCR (qPCR) was applied to detectmRNAexpressionofmiR-139-5pandNotch1 in EOC tissues and cell lines. The miR-139-5p over-expression vector and recombinant plasmid pLV-Notch1 were transfected into SKOV3 cells. Blank control group (Ctrl group) and negative control group (NC group) were set up. Dual luciferase reporter gene assay was applied to verify the targeting relationship between miR-139-5p and Notch1 3'-UTR. CCK-8, Transwell and Scratch healing experiments were applied to detect cell proliferationinvasionandmigration, respectively. Western blotting was applied to detect expressions of proliferation and migration related proteins in cells. Results: Compared with para-cancerous tissues and IOSE80 cells, the expression of miR-139-5p was significantly decreased in EOC tissues and cell lines, while the expression of Notch1 mRNA was significantly increased (all P<0.01). The results of Dual luciferase reporter showed that Notch1 was the downstream target gene of miR-139-5p. Compared with NC group, cell proliferation, invasion and migration ability, expression levels of Notch1, NICD, Cyclin D1, Cyclin A1, Snail1, β-catenin and N-cadherin were all significantly decreased on 3 d in miR-139-5p mimic group (all P<0.01), while expression of E-cadherin was significantly increased (P<0.01); meanwhile, over-expression of Notch1 could reverse the inhibitory effect of miR-1395p on proliferation, invasion and migration of SKOV3 cells. Conclusion: miR-139-5p can targetedly regulate Notch1 to inhibit proliferation, invasion and migration of EOC cells, which may be related to its down-regulation of NICD, Cyclin D1, Cyclin A1, Snail1, βcatenin and N-cadherin, and up-regulation of E-cadherin.

Objective ToexploretheMRIperformanceofpapillarythyroidcarcinomawithhobnailfeatures(HPTC)andthedifferential diagnosisfromclassicpapillarythyroidcarcinoma(CPTC).Methods Dataof93patientswithconfirmedPTCandMRIexamination oneweekbeforesurgerywereretrospectivelycollected.Thedifferencesoftheage,sex,tumorsize,ADCvaluesand MRIfeaturesof HPTCandCPTCweredetermined.Results 10HPTCand78CPTCwereincludedinthisstudy.ThefrequencyofT2WIsignificantly highsignal,segmentationlinearlowsignal,lacesignandgyrus-likestructureofHPTCwassignificantlyhigherthanthatofCPTC (P=0.000).ComparedtoCPTC,HPTCshowedmoreirregularshape(P=0.005),largervolume(P=0.025),moremixedT2WI andDWIsignals(P=0.002,0.028,respectively),higherADCvalues(P=0.019),anddelayedmass-likeenhancement(P=0.041). Conclusion HPTClesionshavelargervolume,irregularshape,mixedT2WIsignals,mixedDWIsignalsandhigherADCvalues. Significantlyhighsignal,segmentationlinearlowsignal,lacesignandgyrus-likestructurearecommonlyobservedonT2WI.Delayed mass-likeenhancementpatternismorecommon.ThesecharacteristicscouldcontributetothediagnosisofHPTC.

OBJECTIVETo investigate whether transplantation of autologous peripheral blood CD34+ stem cells is a viable approach for treating patients with advanced cirrhosis,which is currently hindered by a shortage in liver donors.

METHODSA total of 100 patients with advanced cirrhosis and who had failed to respond to conservative therapy were recruited for transplantation of autologous peripheral blood CD34+ stem cells.The success of transplantation was investigated 6-and 12-months later by measuring markers of liver biosynthesis function (coagulation,albumin level,indocyanine green clearance,Child-Pugh score) and assessing pathological changes (Knodell score) and morphologic changes in the liver tissue.Complications were also recorded during follow-up.

RESULTSThe 1-year cumulative survival rate was 100%. Fifty-two patients with massive ascites showed gradual reduction and disappearance of the ascites.Four patients experienced upper gastrointestinal bleeding and three patients developed with hepatic encephalopathy (I-II degree) at 3 months post-transplantation.All patients showed significantly improved liver biosynthesis function,liver elasticity and Knodell score after transplantation (P less than 0.05).

CONCLUSIONAutologous peripheral blood CD34+ stem cell transplantation is a safe and effective treatment for advanced cirrhosis,and has high cost-benefit since it improves liver function,liver histology,and quality of life.

Objective To evaluate the clinical efficacy of Qingrehuashi herbal formula combined with high intensity focused ul-trasound(HIFU ) in the treatment of advanced pancreatic cancer .Methods 86 patients with pancreatic cancer (22 case of III stage and 64 case of IV stage) were included in this study .18 cases were performed the HIFU therapy for 2-3 times .Other 68 cases re-ceived once HIFU therapy ,among 53 cases of liver metastasis ,8 cases were simultaneously conducted HIFU ablation therapy on liv-er metastasis .The patients were given Chinese medicines dominated by Qingrehuashi before and after HIFU therapy and during fol-low up period .Results The single evaluation on HIFU irradiation cases after 1 month:complete remision(CR) in 0 case ,partial re-mission(PR) in 8 cases(9 .3% ) ,stable disease(SD in 64 cases(74 .4% ) and progress disease(PD) in 14 cases(16 .3% ) .The median survival rate of 1 year and half a year was 52 .0% and 11 .4% .Among 73 cases of increased CA199 before treatment ,CA199 after treatment was decreased in 12 cases .Among 36 cases of increased CA242 before treatment ,CA242 after treatment was decreased in 15 cases .The effective rate of analgesic relief in all the cases was 70 .9% (62/86) .Conclusion The integrated therapy of Qingre-huashi herbal formula and HIFU is an effective method for treating advanced pancreatic cancer .

OBJECTIVETo study the variation regularity of chemical constituents contained in Euphorbia ebracteolata after vinegar processing.

METHODThe colorimetric method was adopted for determining the variation of total lactone content in toxic constituents contained in E. ebracteolata decoction, with Kedde as the coloring reagent. The HPLC method was used for detecting the content variation of jolkinolide B and jolkinolide C, both were active constituents contained in E. ebracteolata decoction, before and after roasting with vinegar, in which Kromasil-ODS column (4.6 mm x 250 mm, 5 microm) was adopted, with the detection wavelength of 290 nm, column temperature at 25 degrees C , gradient elution with acetonitrile and water and the flow rate of 1.0 mL x min(-1).

RESULTAfter roasting with vinegar, the total lactone content in E. ebracteolata was reduced from 0.60 to 0.45 mg x g(-1) , with active constituents, jolkinolide B and jolkinolide C, increased to varying degrees. The established chromatographic fingerprint contained risk information and could reflect the overall variation regularity of chemical constituents after roasting with vinegar.

CONCLUSIONThe chemical constituents of E. ebracteolata show significantly changes, especially a reduced toxicity, after roasting with vinegar. The increase in its efficacy may be related to the variation of these constituents.

Objective To study the early language development for children with cleft lip and palate. Methods 105 non-intellectual and hearing impairment children who has done cleft palate operation, accepted one-to-one treatment mode for speech rehabilitation, once or twice a week, 30~45 min each time. Results The speech articulation of all the children improved (P<0.001). Conclusion Early surgery can restore the palatopharyngeal closure function and get better voice as soon as possible.