Objective: To study the relationship of folic acid, homocysteine with pancreatic cancer. Methods: A case-control study was performed in which the case group was defined as patients with newly diagnosed pancreatic cancer and the control group were population-based healthy individuals. ELISA assay was used to determine the plasma levels of folic acid, homocysteine, vitamine B6 and vitamine B12 in all the subjects. The general information (such as demology data, smoking history, diet, etc) was collected by face to face talking using a standard questionnaire. Univariate analyses were performed using Chi-square tests for norminal variables and unpair t-tests for continuous variables. The variables with a P value no more than 0.25 in univariate analyses were selected as candidate variables for a multivariate logistic regression analysis. Results: Forty-two patients with pancreatic cancer and 42 healthy individuals were included in the present study. The results of univariate analyses showed that the plasma folic acid, homocysteine, vitamine B12 and vitamine B6 were not significantly different between the two groups (P>0.05); they were potentially associated with pancreatic cancer (P<0.25), but were not significant risk factors (P>0.05). The consumptions of vegetables, fruits, white meat and milk in case group was significantly less in the pancreatic cancer group than in the control group (P<0.05). Multivariate analysis showed that the odds ratios (95% CI) of plasma folic acid, vitamin B6, and homocysteine for pancreatic cancer were 0.571 (0.383-0.851), 0.750 (0.557-1.011), and 1.514 (0.986-2.326), respectively. Conclusion: Increased plasma folic acid can decrease the risk of pancreatic cancer. Plasma vitamin B6 might be a protective factor and homocysteine might be a risk factor of pancreatic cancer.

Objective To study the relationship between velocities of ductus venosus(DV),inferior vena cava(IVC) and right hepatic vein(RHV) of fetus,and abnormal perinatal outcome in high-risk pregnancy so as to find out which venous velocity can predict abnormal perinatal outcome and which velocity is the best for predicting abnormal perinatal outcome. Methods Velocities of DV,IVC and RHV in 67 cases of high-risk pregnancy were examined through color Doppler and their relationship with perinatal outcome was analyzed respectively. Results RHV-pulsatility index(PI) ,DV-pre-load index(PLl) ,DV-S/A and IVC-peak velocity index(PVI) could all predict abnormal perinatal outcome in high-risk pregnancy. But RHV-PI had the best prediction, and when its positive cutoff value was taken as 2. 89,the sensitivity for abnormal outcome was 75. 0% ,the specificity was 76. 7% ,and the correct index (Youden index) was 0. 52. Conclusions RHV-PI can best predict abnormal perinatal outcome in high-risk pregnancy,which can help a lot for prompt clinical treatment.

Objective To explore the expression and significance of Rac1 and WAVE2 protein in glomerulus of high-
fat diet induced C57BL/6J model mice. Methods Thirty-two male C57BL/6J mice (3-week old) were randomly assigned into two groups(16 in each group). The control group was fed with basic diet (10%fat) for 4 weeks. The high-fat diet group was fed with high-fat diet (60%fat) for 4 weeks. The kidney morphological changes were examined by HE and PAS staining. The expressions of Rac1 and WAVE2 protein were examined by Western blot and immunohistochemistry analysis. Results HE and PAS results showed that there were glomeruli mesangial matrix hyperplasia and exudation in high-fat diet group compared with control group. The immunohistochemistry and Western blotting results showed that expressions of Rac 1 and WAVE2 in glomerulus were both increased in high-fat diet group compared with those of control group. Conclusion Rac1 and WAVE2 protein may be involved in glomerular injuries induced by high-fat diet.

Objective To explore the clinical significance of urinary leukotriene E4(LTE4) in children with respiratory syncytial virus(RSV) bronchiolitis.Methods Forty infants with bronchiolitis were enrolled for the identification of RSV-Ag from the nasopharyngeal secretions.Forty cases who were found to be positive of RSV were put into RSV bronchiolitis group.According to the severity of illness,the infants in RSV bronchiolitis group were separated into 2 subgroups:mild illness group (24 cases) and moderate illness group (16 cases).Thirty healthy children were chosen as healthy control group.Urine of the patients in RSV bronchiolitis group was collected in acute phase (on the 1st day) and recovery phase (on the 7th day after the admission).Urine of children in control group was collected .Enzyme-linked immunosorbent assay was used to assay the level of urinary LTE4.Results The levels of LTE4 in healthy control group (M,Q) were 1.28 pmol?mmol-1,1.72 pmol?mmol-1,while the levels of LTE4 in acute phase in RSV bronchiolitis group (M,Q were 30.52 pmol?mmol-1,23.56 pmol?mmol-1,and the levels of LTE4 in recovery phase in RSV bronchiolitis group (M,Q) were 3.98 pmol?mmol-1,3.43 pmol?mmol-1.Urinary LTE4 levels in acute phase in RSV bronchiolitis group were significantly higher than those in healthy control group (P

Objective To investigate the diagnostic value of combination of echocardiography with electrocardiography for coronary artery lesions(CAL) in Kawasaki disease(KD).Methods Seventy eight children with KD received echocardiographic and electrocardiographic examination.Seventy eight cases were divided into 3 groups according to the results of echocardiogram.Results CAL was discovered in 45 cases and 32 cases with coronary artery dilation,the other 13 cases with coronary artery aneurysm among them.Abnormal electrocardiogram was found in 16 cases.ratio of abnormal electrocardiogram was higher in CAL group than that in normal coronary artery group(P

Cyclohexanones ; poisoning ; Ethylene Dichlorides ; poisoning ; Humans ; Infant ; Male

Objective To explorethe relationship between urinary albumin-to-creatinine ratio (UACR) and blood pressure of young migrant builders in Shanghai. Methods A total of 3 195 builders (age ranged from 18 to 50) were selected from migrant builders of Shanghai Construction Group Co., Ltd. by using random clustersampling method. They were subjected to questionnaire interview, physical examination, and biochemical tests, including UACR, renal function, serum uric acid, serum lipid, and serum glucose. The participants were divided into 4 groups (I, II, III, and IV) according to the levels of UACR, and the ordinal multinomial logistic regression model was employed todetermine the relationship between UACR levels and blood pressure grouping (normal, pre-hypertension, and hypertension). Results Among the 3 195 builders, 3 112 (97. 4%) finished interview. The UACR (median [Q1-Q3]) levels and high-UACR ratio for the normal, pre-hypertension and hypertension groups were 0. 8 (0. 6-1. 2) mg/mmol, 0. 9 (0.7-1. 4) mg/mmol, and 1. 0 (0.8-1. 7) mg/mmol, and 6. 8%, 8. 0%, and 15. 6 %, respectively, with significant differences for both UACR levels and high-UARC ratios (P<0. 05) among the 3 blood pressure groups. According to the 25%, 50%, and 75% quartiles of UACR values, builders were classified into 4 groups. After adjustment of the other factors such as age, the average systolic pressures of the I, II, III, and IV UACR groups were (126. 8± 13. 3), (127. 9 ± 14. 2), (129.9 ± 14. 4), and(134. 2 ± 19. 0) mmHg (1 mmHg= 0. 133 kPa), and the average diastolic pressures of the 4 groups were (77. 6±9. 7), (78. 8±9. 2), (79. 2 ± 10. 4), and (81. 8 ± 12. 5) mmHg, respectively. UACR was positively correlated with both the average systolic pressures and diastolic pressures (P<0. 05). Logistic regression analysis showed that, after adjusting the factors such as age, body mass index, total cholesterol, and low density lipoprotein cholesterol, the odds ratio (OR) and 95% confidence interval (95% Cl) of pre-hypertension and/or hypertension, compared with I group, were 0. 98 (0. 80-1. 20), 1. 29 (1. 05-1. 58), and 1. 86 (1. 52-2. 28) for II, III, and IV groups, respectively. Conclusion The UACR is positively correlated with pre-hypertension and hypertension among young migrant builders in Shanghai.

Objective To study the changes and significance of Bid gene expression in hypoxic-ischemic brain damage (HIBD) in neonatal rats.Methods The animal models of HIBD were made. Total RNA from ipsilateral cerebral hemisph ere was extracted.RT-PCR was used to evaluate the levels of Bid gene expression at different time points after hypoxic-ischemic. Results The levels of Bid mRNA were higher in HIBD rats than those in normal rats.The ex pression of Bid mRNA in ipsilateral hemiphere following cerebral hypoxic-ischem ic began to increase at 6 h, increased to the highest level at 24 h, and then gr adually returned.Conclusion The upregulation of Bid mRNA can play a role in the induction of apoptosis fol lowing cerebral hypoxic-ischemic. J Appl Clin Pediatr,2005,20(2):121-122

OBJECTIVE: To investigate the metabolic profile of senecionine in rats. METHODS: Liquid chromatography-tandem mass spectrometry (LC-MSn) mass spectrometry was used for the analysis of senecionine and its metabolites in rats bile, urine, and feces after a single oral dose of senecionine. RESULTS: In total 38 metabolites were identified, including oxidation products, hydroxylation products, hydrolysis products, sulfation products, glucuronidation products, and GSH-conjugations. And metabolites were found to be more abundant in bile and urine than those in feces. CONCLUSION: Senecionine undergoes extensive metabolism in rats.

OBJECTIVE: To prepare mangiferin transfersomes and investigate its transdermal delivery characteristics. METHODS: Mangiferin transfersomes were prepared by the method of film-dispersion, the in vitro percutaneous penetration study was conducted in the modified Franz diffusion cell, the distribution of transfersomes in skin was investigated by fluorescent tracer method, and the rat back airbag inflammation model was used to preliminarily evaluate the anti-inflammatory effect of mangiferin transfersomes with prostaglandin E2 (PGE2) content as the indicator. RESULTS: The average particle size of mangiferin transfersomes was (84.50 ± 5.26)nm, the polydispersity index (PDI) was (0.21 ± 0.012), the Zeta potential was(-10.83 ± 0.66)mV, the encapsulation efficiency (EE) was (64.07 ± 2.10)%, and the deformability was (20.00 ± 0.30)%; the cumulative permeation quantities in 24 h and intradermal retention of mangiferin transfersomes were (313.67 ± 22.62) and (60.34 ± 8.10) μg · cm-1, respectively. Fluorescent tracer method showed that the fluorescence intensity of FITC transfersomes in the inside of skin was stronger than that of FITC solution at 8 h. Anti-inflammatory test showed that the PGE2 contents in the middle and high dose mangiferin transfersomes groups decreased significantly. The anti-inflammatory effect of the high dose mangiferin transfersomes was even close to that of compound dexamethasone cream. CONCLUSION: Transfersomes can promote the percutaneous penetration of mangiferin, increase its intradermal retention, and enhance the anti-inflammatory effect of mangiferin significantly.