A high performance liquid chromatographic assay has been developed for the simultaneous determination of four water soluble vitamins,thia min, ribo-flavin, uiacin and pyridoxine, in cereal products and fresh vegetables. For hydrolyzing sample in 0.4 mol/L HCL, autoclaving at 120℃, 15 psi for 30 minutes, a ?Bondapak column (300mm ? 3.9mm, Waters Co), a mobile phase of methanol-water (30:70) (0.005 mol/L heptanesulfonic acid) and a flow rate of 1.0ml/min gave the most satisfactory separation of the four vitamins. A double channel detector was used: three vitamins (B1, B2 and B5) were detected by UV spectrophotometry (254 nm) first, pyridoxine (B6) was detected by fluorometry (EX 290 nm, EM 390 nm) afterwards. Detection limits were 2, 5, 5 and 2ng, linear ranges were 5-40 ng, 5-50 ng, 5-40 ng and 5-50 ng for B1, B2, B5 and Be, respectively. Recoveries were 91.3%-102% (B1), 103%-105% (B2), 92%-100% (B5) and 99%-100% (B6), comparing with reference method and checking with food composition tables, very satisfactory results were obtained by this method.

The epilepsy symptom and the pia microcirculatory blood flow volume (PMBFV) were investigated in epilepsy rat model induced by strychnine and the changes after treatment by using faradized frequency spectrum therapeutic equipment were observed. The epilepsy symptom was improved and the PMBFV increased after treatment. The convulsion seizure time was delayed, the seizure frequency and convulsion time were reduced, and the epilepsy even was not appeared in some cases. Results suggested that this improvement might be related to the change of PMBFV.

AIM:The objective of this study was to observe the effects of AP-1 element on endothelin-1(EDN1)gene transcription in homocysteine(Hcy)-induced human umbilical vein endothelial cells(HUVECs).METHODS:The redox level in Hcy-induced HUVECs was determined by using the fluorescent product DCF.The influences of Hcy on expressions of EDN1 mRNA and protein of c-jun/AP-1 in HUVECs were measured by the methods of RT-PCR and Western blotting,respectively.The EDN1 secretion level of HUVECs induced by Hcy was determined by enzymatic immunoassay.The transient transfection assay was performed and luciferase activity of transcriptional factor AP-1 reporter gene induced by Hcy was detected.RESULTS:The Hcy significantly increased EDN1 secretion,EDN1 mRNA expression and oxidative stress in HUVECs.Hcy remarkably induced the expression of pGL3-EDN1-AP-1(115/+135)luciferase reporter gene plasmid.However,basic expression of mutation of pGL3-EDN1-AP-1(-115/+135)luciferase reporter gene plasmid was downregulated markedly in HUVECs induced by Hcy.CONCLUSION:Redox-active and release of ROS are changed by Hcy.Activated AP-1 element plays an important role in EDN1gene transcription in HUVECs induced by Hcy.

ObjectiveTo investigate the effect of Jiuqiang Naoliqing(JNQ)-containing serum on secretion of nitric oxide(NO) and endothelin-1(ET-1) in human umbilical vein endothelial cells(HUVECs), in order to explore the effect of JNQ on regulation of vascular active factors in HUVECs.MethodsThe HUVECs were explored to different volume fractions of JNQ containing serum after being isolated and cultured. The levels of cultured medium of NO and ET-1 were measured.ResultsThe cultured medium content of NO and ET-1 in different volume fractions of JNQ containing serum was significantly increased compared with normal serum control (P<0.05), while the ratio of NO to ET-1 were increased in comparison with normal control (P<0.05).Conclusion JNQ can be promoted secretion of NO and ET-1 in HUVECs, preserving endothelial function, and maintaining the balance of NO/E-1.

ObjectiveTo investigate the effect of α-Zearalanol(α-ZAL) on lipometabolism and hemorheology in ovariectomized(OVX) hyperlipidemia rabbits.Methods44 adult virgin female rabbits were divided into 5 groups,group A: normal control;group B: sham+CHO;group C: OVX+CHO;group D: OVX+CHO+17βE_2;group E: OVX+CHO+α-ZAL.Cholesterol(CHO) was fed to rabbits for 12 weeks.Before and after feeding CHO,the serum lipid(TC,TG,LDL-C,HDL-C) were measured;Blood viscosity,plasma viscosity,aggregation index of RBC(AIRC) and fibrinogen were also assayed respectively.ResultsThe serum levels of TC,TG and LDL-C in group B and E were significantly decreased compared with those in group C(P<0.05);the level of blood viscosity,plasma viscosity and AIRC platelet aggregation rate in group D and E were also significantly decreased compared with those in group C(P<0.05).Conclusionα-ZAL can improve vascular function through the adjustment of lipometabolism and hemorheology.

AIM: To investigate the effect of 17? estradiol (17?E 2)on atherosclerosis and hemorrheology in ovariectomized (OVX) rabbits. METHODS: Thirty four female rabbits were divided into 4 groups, group A: normal control; group B: sham+CHO; group C: OVX+CHO; group D: OVX+CHO+17? E 2. Cholesterol(CHO) was fed to rabbits for 12 weeks, before and after feeding CHO, the serum lipid (TC, TG, HDL-C, LDL-C, ApoA1, ApoB) and area of aortic atherosclerotic plaques were measured. Blood viscosity, plasma viscosity (?p), aggregation index of RBC (AIRC) and fibrinogen were also determined, respectively. RESULTS: ① The ratio of area of aortic atherosclerotic plaque to total area of aortic intima was 0.02?0.003 (in group A), 0.42?0.15 (group B), 0.67?0.23 (group C), and 0.12?0 11 (group D), respectively. In group D, the ratio of aortic atherosclerotic plaque was markedly decreased compared with group C ( P

Objective To analyze the relationship betWeen serum fibroblast groWth factor 23( sFGF23)and glomerular filtration function in critically ill children,and to investigate the predictive value of sFGF23 in glomerular fil﹣tration rate in critically ill children. Methods This prospective study included the children from the Pediatric Intensive Care Unit(PICU)of Children＇s Hospital of SoochoW University from May to August in 2012. A total of 143 critically ill children aged 1 to 156 months and Weighing 2. 5 to 46. 0 kg Were included. The levels of sFGF23 Were measured on the first day of admission. The pediatric risk of mortality Ⅲ score( PRISM Ⅲ)Was calculated based on 16 items Which Were collected during the first 24 hours of admission. Multivariable linear regression analysis Was used to assess the rela﹣tionship betWeen sFGF23 and estimated glomerular filtration rate( eGFR). A receiver operating characteristic( ROC) curve and the area under the ROC curve(AUC)Were calculated to assess the predictive strength. Results Of the total 143 children,8 cases(5. 4%)died during the first Week of admission to PICU. Regression analysis shoWed that sFGF23 levels Were significantly associated With eGFR,even after adjusted for age and body Weight,and sFGF23 achieved AUC of 0. 741 for predicting eGFR,Which Was statistically significant(95%CI:0. 624－0. 858,P﹦0. 002). Conclusions sFGF23 has a good correlation With glomerular filtration function in critically ill children. The sFGF23 has certain clinical application value in evaluating glomerular filtration function in the critically ill children.

Objective:To explore the early predictive value of urinary nephrin in acute kidney injury (AKI) for critically ill neonates.Methods:A prospective study was conducted to neonates who were admitted to Neonatal Intensive Care Unit (NICU) Children′s Hospital of Soochow University, from July to October 2016.According to whether AKI occurred during the NICU′s hospitalization, neonates were divided into AKI group and non-AKI group.Urinary nephrin levels were detected at the first 24 h of NICU, and the score for neonatal acute physiology (SNAP) was assessed within 24 hours of NICU.Multivariate linear analyses were applied to analyze potential variables that were asso-ciated with urinary nephrin level.Multivariate Logistic regression analysis was adopted to evaluate the relationship between urinary nephrin and AKI after adjusting for confounding factors.A receiver operating characteristic(ROC) curve and the area under the ROC curve (AUC) were calculated to assess the early predictive value of urinary nephrin for neonatal AKI. Results:Among the 156 neonates enrolled in the study, 16 cases(10.2%) developed AKI.The median of urinary nephrin, urinary albumin and SNAP scores were 0.27 μg/mg uCr, 0.48 g/g uCr and 9 scores with AKI group, while the median of urinary nephrin, urinary albumin and SNAP scores were 0.16 μg/mg uCr, 0.16 g/g uCr and 7 scores with non-AKI group.When compared with non-AKI neonates, urinary nephrin ( Z=-3.201, P=0.001), urinary albumin ( Z=-2.652, P=0.008) and SNAP score ( Z=-2.611, P=0.009) were significantly higher in AKI neonates.Multiple linear regression analysis proved that urinary nephrin levels were significantly correlated with urinary albumin ( B=0.488, SE=0.117, P<0.001). Multivariate Logistic regression analysis revealed that urinary nephrin remained significantly associated with AKI ( P=0.018) after adjusting for confounding factors, including gestational age, birth weight, gender, SNAP score, mechanical ventilation and apnea.Urinary nephrin achieved AUC of 0.746 (95% CI: 0.606-0.886, P=0.001). Conclusions:As a biomarker of glomerular injury, urinary nephrin is significantly related to the occurrence of AKI and has early predictive value for AKI in critically ill neonates.

Objective To summarize the efficacy and adverse reactions of incremental corticotrophin (ACTH) therapy in the treatment of infantile spasms (IS),and to provide new clinical treatment options.Methods The clinical data of 40 children with IS who were hospitalized in the Department of Neurology,Shanghai Children's Medical Center,Shanghai Jiaotong University School of Medicine,treated with ACTH from January 2016 to January 2018 were collected and retrospectively analyzed.All the children were treated with intravenous infusion of ACTH with an initial dose 12.5 U/d for 3 days.If the spasms did not disappear,dosage of ACTH increased to 25.0 U/d for another 3 days.If the spasms could not yet be fully controlled,the dosage increased to 40.0 U/d,and the total course of treatment did not exceed 2 weeks.If the spasms disappeared at each dose stage or the course of treatment reached to 2 weeks,ACTH would be changed to Prednisone 2 mg/(kg · d) orally,which gradually decreased in 2 months.All children underwent electroencephalogram examination before and after treatment.Results Forty patients with IS were treated with ACTH increasing therapy.The disappearance rate of spasms was 40.0％ (16/40 cases) totally,with 7.5％ (3/40 cases) at the dosage phase of 12.5 U/d,16.2％ (6/37 cases) at the dosage stage of 25.0 U/d,and 22.6％ (7/31 cases) at the dosage of 40.0 U/d.The disappearance rate of hypsarrhythmia on electroencephalogram was 60.0％ (24/40 cases) generally,and 5.0％ (2/40 cases),10.8％ (4/37 cases),58.1％ (18/31 cases),respectively at above different dosage phases,while 37.5％ (15/40 cases) of the children had mild adverse reactions,mostly respiratory infections.Conclusions The short-term efficacy of the ACTH incremental therapy in the treatment of IS is positive,and the incidence of adverse reactions is low.