Confirmation of basic technological parameters of tension levellers is the most important factor of leveling strip. Up to now, most factories have used experts' experience to decide these parameters, without any established rule to follow. For better quality of strip, a valid method is needed to decide technological parameters precisely and reasonably. In this paper, a method is used based on neural network and genetic algorithm. Neural network has a good ability to extract rules from work process of tension levellers. Then using neural network, which has learned from a lot of working samples, to be the evaluation of fitness, genetic algorithm could easily find the best or better technological parameters. At the end of this paper, examinations are given to show the effect of this method.

Objective To investigate the concentration of Golgi glycoprotein 73(GP73) in ascites, then study the value of GP73 and alpha fetal protein(AFP)in the differential diagnosis of ascites.Methods Totally 96 malignant ascites specimens , 35 benign ascites specimens and their paired serum specimens were collected in the Tumor Hospital Affiliated to Xinjiang Medical University from November 2012 to November 2013.GP73 in serum and ascites were detected by ELISA and AFP in ascites was measured by electrochemical luminescence.The application values of GP 73 and AFP were evaluated through ROC curve.Results In benign ascites group , the difference of GP73 between the ascites ( 16.06 ±9.53 ) ng/ml and the serum (13.69 ±8.87) ng/ml was statistically significant (t=5.026,P<0.001), which showed a good linear correlation (r=0.966,P<0.001).In malignant ascites group, the difference between the ascites (28.37 ±12.02) ng/ml and the serum (16.06 ±9.53) ng/ml was statistically significant (t=10.641,P<0.001), and also showed a good linear correlation (r=0.933,P<0.001).The cutoff values of GP73, AFP and GP73*AFP (GP73 multiplied AFP) for diagnosing the malignant ascites were 17.1 ng/ml, 13.1 ng/ml and 321.The area under ROC curve ( AUC) were 0.795, 0.753 and 0.902 respectively.The AUC of GP73*AFP is the largest.The sensitivity of three index diagnosing the ascites , were 89.6%( 86/96 ) , 88.5%(85/96) and 86.4%(83/96); and the specificity were 60.0%(21/35), 54.2%(19/35) and 85.7%( 30/35 ) respectively.Conclusions Detection of GP73 in ascites specimens has clinical value , GP73*AFP was the best indicators for differential diagnosis of benign and malignant ascites compared to GP73 and AFP.

OBJECTIVE: To assess the analgesic efficacy of compound lidocaine cream in lumbar puncture of children with leukemia and lymphoma. METHODS: 312 leukemia and lymphoma children necessarily undergone lumbar puncture were divided into compound lidocaine cream (cream) group and compound lidocaine injection (injation) group as control with 156 cases respectively according to the will of inpatient children and their family. For cream group, compound lidocaine cream was smeared on the skin around the lumbar puncture point evenly and covered with sterile and transparent dressing for about one hour before lumbar puncture. Then the cream and transparent dressing were removed and lumbar puncture was performed after regular disinfection. For control group, 2% compound lidocaine was injected as local anesthesia before lumbar puncture. The extent of pain was evaluated by Wong-Baker Faces Pain Rating Scale and FLACC Scale as well as children's physiological indexes (heart rate, breathing, blood pressure). The lumbar puncture success rate and the discomfortableness as well as family satisfaction were recorded by special person. RESULTS: Compared with control group, the incidence of pain and discomfortableness in cream group significantly reduced, and the family satisfaction significantly increased (P＜0.05). There were obviously differences in the physiological indexes (heart rate, breathing, systolic blood pressure) before and after lumbar puncture in control group (P＜0.05). However, the physiological indexes in cream group had no obvious change. There was no difference on the success rate of lumbar puncture between the two methods of anesthesia. CONCLUSION Compound lidocaine cream has significantly analgesic effect which can relieving pain caused by lumbar puncture for children.
Analgesics ; Anesthetics, Local ; Child ; Hematologic Neoplasms ; Humans ; Lidocaine ; Lidocaine, Prilocaine Drug Combination ; Spinal Puncture

ObjectiveThe purpose of this study was to observe the correlation of mTOR and VEGF gene with nephropathy indicators in diabetic rats. Methods Forty-eight male Sprague-Dawley(SD)rats were divided into diabetes mellitus group(DM=28)and control group(NDM=20). Diabetic models were produced by injection of streptozotocin. In the courses of 12,16,20 and 24 weeks,the histology scores(HS)and glomerular basement membrane(GBM)thickness were collected. The protein and mRNA expressions of the gene of mTOR,VEGF and VEGFR2 were observed by immunohistochemistry and real-time quantitative polymerase chain reaction (RT-Q-PCR)by SYBR Green. And the standardized cycle of threshold(SCt)was regarded as the indicators of the mRNA expression. Results HS and GBM thickness were significantly higher in DM rats than those in NDM rats,especially in DM rats of the courses of 20 and 24 weeks(P < 0.01). IHC scores of VEGF and VEGFR2 were higher in total DM rats and were positively correlated with each other. There were positive correlations between HS with VEGF and VEGFR2 in total DM rats(P < 0.05). SCts of VEGF and VEGFR2 were significantly higher and were positively correlated with each other in total DM rats(P < 0.01). SCt of VEGF and GBM thickness showed positive correlation in total DM rats. SCt of VEGF was highest in the course of 12w DM rats. SCt of VEGFR2 gradually decreased following by the diabetic course,and was lowest in the course of 24w. There were no significantly differences in IHC scores and SCt of mTOR between DM and NDM rats. But the IHC scores of mTOR,VEGF and VEGFR2 were positively correlated with each other and with HS in total DM rats(P < 0.05). Conclusion HS and GBM thickness were higher in diabetic rats,especially in the course of 24w,which could reflect the injury of nephropathy. The protein and mRNA of VEGF and VEGFR2 were high expressed in kidney of DM rats and increased with the increasing of diabetic course. The mRNA expression of VEGF was positively correlated with GBM thickness of in diabetic nephropathy(DN). The protein expressions of mTOR,VEGF and VEGFR2 might have synergistic effects in DN of DM rats. But the results could not exclude the influences of different courses,sample size and experimental conditions.

OBJECTIVE: To explore the changes in gene expressions in the human nasal polyp. METHOD: A 14500 gerie DNA microarray (Affymetrix) was used to examine gene expressions in 6 NP samples, 6 normal mucosal samples. The differentially expressed genes were identified and subjected to realtime PCR analysis. RESULTS: The differentially expressed genes mostly involved in cytokines, adhesion genes about complements and their receptors, immune transcription regulatory molecules, signal transduction, differentially expressed genes including IL-8, RGS1, GRK4, CCL20, uteroglobin. The results of IL-8, RGS1 Real-time PCR of were consistent with that of gene chip analysis. CONCLUSION Microarray expression profile of NP samples is differential. RGS1 may play an important role in cell signal transduction, IL-8 may involve in occurrence of nasal polyps by inducing cells releasing inflammatory factors.
Adult ; Aged ; Female ; Gene Expression ; Gene Expression Profiling ; Humans ; Male ; Middle Aged ; Nasal Polyps ; genetics ; Oligonucleotide Array Sequence Analysis ; Reverse Transcriptase Polymerase Chain Reaction ; Young Adult

OBJECTIVE: To seek the effect of CO2 laser-assisted uvulopalatopharyngoplasty (LAUP) of obstructive sleep apnea hypopnea syndrome (OSAHS). METHOD: Patients with OSAHS confirmed by polysomnography (PSG) were chosen. Ninety-six patients were completed PSG studies of more than 6 months after CO2 LAUP. RESULT: The 96 patients' follow-up period was 6 months, 29 cases were cured; 34 cases had notable effects; 13 cases had effects; 20 cases had no effects. The effective rate was 79.17% (76/96). CONCLUSION Application CO2 LAUP is a safe and effective treatment method for OSAHS.
Adult ; Aged ; Female ; Humans ; Lasers, Gas ; therapeutic use ; Male ; Middle Aged ; Otorhinolaryngologic Surgical Procedures ; methods ; Palate ; surgery ; Palate, Soft ; surgery ; Pharynx ; surgery ; Sleep Apnea, Obstructive ; surgery ; Treatment Outcome ; Uvula ; surgery

Objective To evaluate the clinical curative effect and prognosis of hand-assisted laparoscopic (HALS) and laparoscopic assisted surgery for Siewert Ⅱ,Ⅲ gastroesophageal junction adenocarcinoma (AEG).Methods A retrospective analysis of 105 patients with advanced Siewert type Ⅱ and Ⅲ AEG between Jan 2012 and Jan 2013 was made on the operation time,amount of blood loss,number of lymph nodes dissected,postoperative complications,postoperative hospital stay and postoperative 5-year survival rate.Results HALS resulted in significantly shorter operation time and the average postoperative hospital stay [(203±54) min比(283±72) min,t=-4.902,P=0;(10±4) d 比(13±3)d,t=-0.939,P =0.002] for advanced Siewert type Ⅱ and Ⅲ AEG.There was no conversion to open surgery in HALS group,while there was 3 cases in laparoscopy assisted surgery group (x2 =4.118,P =0.042).5 year overall survival (OS) in HALS group was 46.7％ (95％ CI39.98-53.88),and it was 60.9％ for stage Ⅱ patients 37.8％ for stage Ⅲ.5 years OS rate was not significantly different between the two groups.Conclusion HALS compared with laparoscopy assisted surgery in the treatment of advanced Siewert type Ⅱ and type Ⅲ AEG has shorter operation time,higher safety operation,shorter postoperative recovery time.The number of patients with postoperative complications and the 5-year survival rate after surgery are not significantly different between the two groups.

Objective:To investigate the value of low-energy virtual monoenergetic image (VMI) at 45 keV in visualizing the primary tumor and T staging of hypopharyngeal squamous cell carcinoma.Methods:The clinical and imaging data of 58 patients with hypopharyngeal squamous cell carcinoma from April 2018 to January 2020 at Eye & ENT Hospital, Fudan University were analyzed retrospectively. All the patients underwent a venous phase contrast-enhanced dual-source dual-energy CT scan before treatment. The VMI at 45 keV and standard linearly blended image (30% 80 kV+70% 140 kV) were acquired from dual-energy post-processing software. One senior radiologist and one junior radiologist independently assessed the visibility of the tumor on the 45 keV VMI and standard linearly blended image using a 5-point Likert rating scale. Furthermore, the senior radiologist assessed the visibility of the tumor at each subsite (piriform fossa, posterior pharyngeal wall, postcricoid region) and determined the invasion depth of the tumor (extension to esophagus, invasion to strip muscles and prevertebral muscles) and performed the T staging of the primary tumor using the two sets of images blindly. The accuracy of T staging was calculated, using pathological T staging (surgical cases) or clinical T staging (non-surgical cases) as the gold standard. The image scores of the two sets of images were compared using Wilcoxon rank sum test. McNemar-Bowker test was used to compare the accuracy of T staging using the two sets of images.Results:The overall image scores of the 45 keV VMI and standard linearly blended image from the senior radiologist were 3.5 (3, 4) and 3 (2, 3) respectively ( Z=-7.03, P<0.001), and the scores from the junior radiologist were 3 (3, 4) and 2 (2, 3) ( Z=-6.93, P<0.001). The scores of the 45 keV VMI were significantly higher than those of the standard linearly blended image in visualizing tumors in the piriform fossa, posterior pharyngeal wall, and postcricoid region, as well as in detecting invasion to the strip muscles ( P<0.05). There was no significant difference in the scores of the two sets of images in determining whether the tumor extended to esophagus or invaded prevertebral muscles ( P>0.05). Referring to pathological and clinical T stage, the accuracy of T staging determined by the 45 keV VMI and standard linearly blended image was 87.9% (51/58) and 81.0% (47/58) respectively, and the difference was not significant (χ 2=3.33, P=0.189). Conclusions:The 45 keV VMI is superior to the standard linearly blended image in visualizing tumors and detecting invasion to the strip muscles of hypopharynx squamous cell carcinoma. However, the accuracy of determining T staging using 45 keV VMI is slightly improved than that of standard linearly blended image, and the difference is not statistically significant. In determining whether the tumor extends to esophagus or invades prevertebral muscles, 45 keV VMI shows no significant advantage over standard linearly blended image.

Objective To evaluate the effect of ambroxol on p38 mitogen-activated protein kinase pathway in mice with sepsis-induced lung injury.Methods Sixty male C57BL/6 mice were equally and randomly divided into 3 groups (n=20 each) using a random number table:sham operation group (group S),sepsis-induced lung injury group (group CLP),and sepsis-induced lung injury + ambroxol group (group AMB).Sespsis was produced by cecal ligation and puncture(CLP).Ambroxol 50 mg/kg preconditioning was injected intraperitoneally for 3 days in group AMB,while the equal volume of normal saline instead was given in S and VILI groups.The arterial blood gas was detected 24 h after CLP.Then the mice were sacrificed and broncho-alveolar lavage fluid (BALF) was collected for determination of the concentrations of total protein,interleukin-1β (IL-1β),tumor necrosis factor-α (TNF-α),IL-6 and intercellular adhesion molecule-1 (ICAM-1).The lung tissues were taken for determination of wet to dry lung weight ratio (W/D ratio),expression of p-p38 MAPK,IL-1β mRNA,TNF-α mRNA,IL-6 mRNA and ICAM-1 mRNA,and for examination of the pathological changes which were scored.Results Compared with group S,partial pressure of oxygen in arterial blood(PaO2) was decreased (P＜0.05),and W/D ratio,lung injury score,concentrations of total protein,IL-1β,TNF-α,IL-6 and ICAM-1 in BALF,and expression of p-p38 MAPK,IL-1β,TNF-α,IL-6 and ICAM-1 mRNA were significantly increased in CLP group (P＜0.05).Compared with group CLP,PaO2 was increased (P＜0.05),W/D ratio,lung injury score,concentrations of total protein,IL-1β,TNF-α,IL-6 and ICAM-1 in BALF,and expression of p-p38 MAPK,IL-1β,TNF-α,IL-6 and ICAM-1 mRNA were decreased in group AMB (P＜0.05).Conclusion Ambroxol can attenuate sepsis-induced lung injury probably through inhibiting p38 mitogen-activated protein kinase pathway in mice.

Objective: To clinically validate the feasibility and accuracy of cine images acquired through the multitasking method, with no electrocardiogram gating and free-breathing, in measuring left ventricular (LV) function indices by comparing them with those acquired through the balanced steady-state free precession (bSSFP) method, with multiple breath-holds and electrocardiogram gating. Materials and Methods: Forty-three healthy volunteers (female:male, 30:13; mean age, 23.1 ± 2.3 years) and 36 patients requiring an assessment of LV function for various clinical indications (female:male, 22:14; 57.8 ± 11.3 years) were enrolled in this prospective study. Each participant underwent cardiac magnetic resonance imaging (MRI) using the multiple breath-hold bSSFP method and free-breathing multitasking method. LV function parameters were measured for both MRI methods. Image quality was assessed through subjective image quality scores (1 to 5) and calculation of the contrast-to-noise ratio (CNR) between the myocardium and blood pool. Differences between the two MRI methods were analyzed using the Bland–Altman plot, paired t-test, or Wilcoxon signed-rank test, as appropriate. Results: LV ejection fraction (LVEF) was not significantly different between the two MRI methods (P = 0.222 in healthy volunteers and P = 0.343 in patients). LV end-diastolic mass was slightly overestimated with multitasking in both healthy volunteers (multitasking vs. bSSFP, 60.5 ± 10.7 g vs. 58.0 ± 10.4 g, respectively; P < 0.001) and patients (69.4 ± 18.1 g vs. 66.8 ± 18.0 g, respectively; P = 0.003). Acceptable and comparable image quality was achieved for both MRI methods (multitasking vs. bSSFP, 4.5 ± 0.7 vs. 4.6 ± 0.6, respectively; P = 0.203). The CNR between the myocardium and blood pool showed no significant differences between the two MRI methods (18.89 ± 6.65 vs. 18.19 ± 5.83, respectively; P = 0.480). Conclusion Multitasking-derived cine images obtained without electrocardiogram gating and breath-holding achieved similar image quality and accurate quantification of LVEF in healthy volunteers and patients.