Objective To observe the effects of propofol and enflurane on intrapulmonary shunt and the changes of plasma endothelin ( ET ) and nitric oxide ( NO ) in the pulmonary artery and vein during one lung ventilation ( OLV ) Methods Thirty patients undergoing elective thoracotomy with OLV were randomly allocated to receiving enflurane at an inspired concentration of 1 8%(enflurane group) or an intravenous infusion of propofol at rate of 6 mg?kg -1 ?h -1 The arterial and mixed venous blood gas analysis and the plasma concentrations of ET and NO in the pulmonary artery and vein were measured 30 min after beginning of two lung ventilation ( TLV ) , 30 min and 60 min after of beginning OLV Results In both groups , the venous admixture percentage(Qs/Qt) increased significantly 30 and 60 min after beginning of OLV compared with that 30 min after beginning of TLV (P0 05) ET concentration in the pulmonary vein increased significantly following OLV in propofol group (P0 05) Conclusion Propofol at clinical dosage does not inhibit hypoxic pulmonary vasoconstriction The atelectasis and hypoxic stimulus during OLV can make pulmonary endothelium release ET or inhibit pulmonary elimination of ET Enflurane can suppress the above process

Purpose To study on the antithrombotic effect of polysaccharide of Auricularia auriculajudae.Methods The method of hot water extraction for extracting polysaccharide from Auricularia auriculajudae was used. The antithrombotic effect was studied by animal experiments.The length and the weight of arterial thrombosis were determined. Characteristic thrombus formation time (CTFT), and thrombus formation time (TFT),the rate of platelet adhesion and the blood viscosity were determined also.Results As compared with the normal saline group,polysaccharide of Auricularia auriculajudae(ig) remarkedly prolonged CTFT and TFT.The length of thrombus was shortened. Thrombus wet weight, thrombus dry weight,and blood viscosity were decreased, yet had no significant influence on the rate of platelet adhesion.Conclusion Polysaccharides of Auricularia auriculajudae can significantly inhitit the formation of thrombus.

Objective To investigate the relationship of insulin resistance and secretion during late pregnancy in women with glucose intolerance.Methods Immunoenzymetric assay was used to measure the fasting serum insulin levels in 122 pregnant women which including of 36 pregnant women with gestational diabetes mellitus(GDM),34 pregnant women with gestational impaired glucose tolerance(GIGT),and 52 pregnant women with normal glucose tolerance(NGT).The fasting plasma glucose levels were measured by glucose oxidase method.The insulin sensitivity index(ISI) and islet secretive function index(IFI) were compared between the three groups.Results ISI had an increasing trend from NGT group,GIGT group to GDM group(P

Objective To explore the risk factors of diabetic nephropathy.Methods According to the excretion rate of proteinuria,90 patients were divided into 3 groups:normal diabetic proteinuria group (DM),diabetic micro-proteinuria group (DN1),and clinical diabetic proteinuria group (DN2).We compared patients'ages,diabetic course,cholesterol,triglyceride,glycosylated hemoglobin,high density lipoprotein cholesterol (HDL),low density lipoprotein cholesterol (LDL),serum p-selectin,serum C-reactive protein,urinary monocyte chemotactic protein,and proteinuria excretion rate.Logistic regression analysis was used to analyze the relation between DN and various factors.Results Differences among these groups were statistically significant in type 2 diabetic course,HDL,LDL,p-selectin,C-reactive protein,glycosylated hemoglobin,and urinary monocyte chemotactic protein (P ＜ 0.05).Logistic regression analysis showed that diabetic course,LDL,C-reactive protein,p-selectin,and urinary monocyte chemotactic protein were independent risk factor (OR values were 2.238,1.062,6.723,1.166,and 1.046).Conclusions Occurrence and severity of DN had relationship with course of diabetes,microvascular lesions,and inflammatory reaction.Emphasis on monitoring and evaluation of the DN-related factors would contribute to the prevention and treatment of DN.

[Objective] Compare the outcomes of vacuum extractors and forceps in assisted vaginal delivery.[Methods] One hundred and sixty-four pregnant women with operative vaginal delivery who received prenatal examination and delivered in our hospital were enrolled.Eighty-two women with vacuum extractors were assigned into vacuum extractors group,another eighty-two women with low or outlet forceps were assigned into forceps group.Occiput transverse or posterior position women before operative vaginal delivery were assigned into abnormal fetal position group.Compare the maternal and neonatal outcomes of vacuum extractors and forceps in assisted vaginal delivery.[Results] The vaginal laceration rate of forceps group was significant higher than vacuum extractors group (56.1％ vs 24.2％,P ＜ 0.01),but neonatal subscalp hematoma and hyperbilirubinemia rate were lower than vacuum extractors group (P ＜ 0.05).The vaginal laceration rate of abnormal fetal position forceps group was also higher than abnormal fetal position vacuum extractors group (76.5％ vs 22.2％,P ＜ 0.05),but neonatal hyperbilirubinemia rate was lower than abnormal fetal position vacuum extractors group (P ＜ 0.05).The Interval time from decision to delivery,postpartum hemorrhage volume with 24 hours,leukocyte and neutrophil count after 24 hours,asphyxia of newborn rate,intracranial hemorrahge,subgaleal hemorrahge,referral rate and hypoxic-ischemic encephalopathy did not significantly differ between vacuum extractors group and forceps group (all P ＞ 0.05).[Conclusions] Vacuum extractors can reduce the incidence of vaginal laceration rate,especial for abnormal fetal position,but increase the incidence of neonatal subscalp hematoma and hyperbilirubinemia rate.

Objective To retrospectively study the methods and effects of interventional therapy in primary hepatic carcinoma complicated with arteriovenous fistula. Methods Interventional chemotherapy and embolization was applied for treatment of 46 cases with primary hepatic eereinoma complicated with arteriovenous fistula. Postoperative clinical changes were observed. Results All 46 cases were successfully treated. No severe complication was found. Total effective rate was 95.65%. 1-year survival rate was 75.09%. Conclusion Interventional treatment is safe and effective in treating primary hepatocellular carcinoma complicated with hepatic arteriovenous fistula.

Objective To investigate the antenatal influencing factors associated with birth weight of twins and the risk factors for the occurrence of discordant twins. Methods Totally, 834 twins delivered at the Third Affiliated Hospital from January 2000 to December 2009 and the First Affiliated Hospital of SUN Yat-sen University, from January 2000 to June 2009, were recruited in the study. The diagnosis criteria of discordant twins was intrapair birth weight difference more than 25 %.Antenatal factors on birth weight were retrospectively investigated among twins and discordant twins respectively with Logistic analysis. Results (1) There were several factors associated with birth weight of twins, including maternal age, conceptive style, chorionicity, gestational diabetes mellitus and placental cord insertion ( P = 0. 021, 0. 000, 0. 000, 0. 012 and 0. 017, respectively). While hypertensive disorder in pregnancy, parity and fetal gender differences were not associated with the birth weight of twins (P＞0.05). Hypertensive disorder in pregnancy (OR=2. 600, 95% CI:1. 566-4. 316) and monochorionicity (OR= 1. 833, 95% CI: 1.010-3. 582) were risk factors of discordant twins. All 834 twin pregnancies were divided into 4 groups according to materal age, ＜25 yrs (n=69), 25-30 yrs (n=312), 30-35 yrs (n=325) and ≥35 yrs (n=128). The average birth weight of twins were (2205±483) g, (2347±406) g, (2381±439) g and (2352±455) g. Significant difference was found bewteen every two groups (P＜0. 05) except that between the 30-35 yrs and ≥35 yrs group (P＞0.05). Among twins of different gender (n=270), the average birth weight of boys and girls were (2416±-514) g and (2322±488) g, and that of female twins (n=272) and male twins (n=292) were (2301±418) g and (2381±428) g. Significant difference was shown between every two groups (P＜0.05) except that between the male twins and male fetus of twins of different gender (P＞0.05).Conclusions The fetal birth weight of twins decreases remarkably when maternal age ＜25, or monochorionicity twins, or complicated with marginal or velamentous placental cord insertion or female pairs.However, birth weight of twins would increase if the pregnancy conceived by assisted reproductive technology or complicated with gestational diabetes mellitus. Twin pregnancy complicated with hypertensive disorder in pregnancy or monochorionicity should alert the clinicians of discordance twins.

Cardiac arrhythmia is one of the most common cardiovascular diseases,with high morbidity and mortality,which threatens human health and lives. With the development of medicine, natural products are revealing ever-greater anti-arrhythmic benefits and potential. However,their targets have not been fully clarified. In the recent ten years ,scientists have been studying the molecular mechanisms of natural products that have been found to inhibit INa,ICa-L,Ito,IK1,IKr,IKM3,HERG channel current and steady state K+ current,promote IKs and IKATP,inhibit microRNA-1 expression and change cardiac microRNA expression profile,affect Na+-K+-ATPase and superoxide dismutase activity,inhibitβ receptor and angiotensinⅡ receptor,and regulate lipid metabolism,thus affecting cardiac rhythm and exerting anti-arrhythmic effect. This paper revies the research advances in the antiarrhythmic tar?gets of natural products.

Objective:To understand the urinary iodine external quality control assessment results of county-level iodine deficiency disorders laboratories in Liaoning Province.Methods:The numbers of county-level iodine deficiency disorders laboratories which participated in the national urinary iodine external quality control assessment in Liaoning Province from 2016 to 2019 were 19, 33, 39 and 56, respectively. The urinary iodine external quality control assessment results were statistically analyzed with the Z score method (qualified: │Z│≤2; basically qualified: 2 <│Z│ < 3; unqualified: │Z│≥3). The percentage of laboratories participating in the assessment and the qualified rate were calculated.Results:From 2016 to 2019, the percentage of county-level iodine deficiency disorders laboratories in Liaoning Province that participated in the national urinary iodine external quality control assessment increased year by year, which were 19.79% (19/96), 34.38% (33/96), 40.63% (39/96) and 58.33% (56/96), respectively. The qualified rates were 89.47% (17/19), 84.85% (28/33), 100.00% (39/39) and 100.00% (56/56), respectively.Conclusion:From 2016 to 2019, the percentage and detection capacity of county-level iodine deficiency disorders laboratories in Liaoning Province that participated in the national urinary iodine external quality control assessment have been improved.

A rapid method was developed for the determination of 5 common fatty acids, palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid in industrial oleic acid based on ultra_performance convergence chromatography_mass spectrometry ( UPC_MS) . The sample was dissolved by n_hexane, followed by clean_up of extract using 0. 22 μm organic phase filter. The fatty acids were separated in 3 min on the column of Acquity UPC2 BEH 2_EP by gradient elution with carbon dioxide and methanol/acetonitrile (1∶1, V/V) system, and finally detected by MS detector in ESI- mode. Through the optimization of UPC2_MS condition, the reasonable linearity was achieved for all the analytes over the range of 0. 5-100 mg/L with the correlation coefficients ( R2 ) greater than 0. 9985. The recoveries for five fatty acids at three spiked levels were in the range from 89 . 3% to 106 . 67% with relative standard deviations of 0 . 8%-3 . 0%. The limits of detection for target compounds in the method ranged from 0. 07 mg/L to 0. 26 mg/L. The real sample analysis showed that this method was simple,fast and had a good separation effect. There was no need of derivatization for fatty acid samples. This work would provide a fast and effective detection method for UPC2 technology in oil related research field.