Objective To develop a new software system that cau directly display the predicted results on an electronic map,in order to get a directly perceived understanding of the affected areas of nuclear and radiological terrorism events in city areas.Methods Three scenarios of events including spreading radioactive materials, dirty bomb attack,and explosion or arson attacks on the radiation facilities were assumed.Gaussian diffusion model was employed to predict the spread and deposition of radioactive pollutants,and both the internal and external doses were estimated for the representative person by using the corresponding dose conversion factors.Through integration of the computing system and Mapinfo geographic information system(GIS),the predicted results were visually displayed on the electronic maps of a city.Results The new software system could visually display the predicted results on the electronic map of a city, and the predicted results were consistent with those calculated by the similar software Hotspot(R)The deviation between this system and Hotspot was less than 0.2 km for predicted isoplethic curves of dose rate downwind.Conclusions The newly developed software system is of the practical value in predicting the effects of nuclear and radiological terrorism events in city areas.

Objective:To summarize the perioperative nutrition management,improve the successful rate in liver transplantation patients and reduce the complications after operation.Methods:A retrospective analysis of the perioperative nutrition treatment was made in 71 cases with liver transplantation.The principle of enteral nutrition before operation was appropriate energy,protein and rich vitamin,and the branched-chain amino acid(BCAA) and glutamine(Gln) were supplied.Intravenous nutrition,early enteral nutrition and total enteral nutrition support were applied during the postoperation period.Results: Except 5 cases that died from respiratory failure and 2 died from hemorrhagic shock respectively,other 64 cases recovered gradually in liver function,and their nutrition indices were enhanced significantly.Conclusion:The perioperative nutrition management is very necessary for liver transplantation patients,and the appropriate nutrition support is helpful to rehabilitate the function of graft organ and the nutritional status of the recipients as possible as early.

Objective To study the effect of soy isoflavones(SI) on menopausal symptoms,and its mechanism.Methods Ninety early postmenopausal women were randomly assigned to three treatment groups with daily dosages of 0(placebo),84,126 mg/(kg bw?d) SI(n=30).Hot flash frequency and Kuppermann score and serum 17?-estrodiol(E2),follicle-stimulating hormone(FSH) and luteinizing hormone(LH) were assessed at baseline,12 w and 24 w posttreatment.Results The percent decreases of Kuppermann scores and hot flashes frequency of the two SI treatment groups were 57.8%?37.4%and 44.3%?19.1% in low dose group and(56.7?26.7)% and(48.5?27.2)% in high dose group respectively,significantly higher than those of the placebo group(34.6?46.2)% and(27.8?15.5) %.No significant difference was observed between the two SI groups.The contents of E2,FSH and LH among all groups were insignificantly different.Conclusion A daily dosage of 84 mg soy isoflavones or above could improve menopausal symptoms especially reducing hot flashes frequency and the mechanism seems not associatedwith serum E2,FSH,and LH.

OBJECTIVETo investigate the relationships between erythrocyte membrane n-6:n-3 PUFAs ratio and blood lipids and high sensitivity C-reactive protein (hs-CRP).

METHODSThe observational study consisted of a population-based cross-sectional study of 456 Chinese and a subsequent 1-year follow-up study of 171 subjects with the fasting plasma total cholesterol of 5.13-8.00 mmol/L.

RESULTSIn the cross-sectional analysis, plasma low-density lipoprotein cholesterol (LDL-c) had a significant and negative association with the erythrocyte membrane n-6:n-3 PUFAs ratio (P for trend=0.019) after adjusting for sex, age and total PUFA percentage. In the follow-up study, 171 subjects were categorized into quartiles by the changes of n-6:n-3 ratio in erythrocyte membrane (Δ=month 12-month 0). In the top quartile whose ratios of n-6:n-3 increased by an average of 1.25 during the follow-up, the LDL-c-lowering extent was 3.3 times of that in the lowest quartile whose ratios of n-6:n-3 decreased by an average of 1.13 (-1.07 mmol/L v.s. -0.32 mmol/L). The hsCRP decreased by 0.11 mg/dL in the lowest quartile while increasing by 0.10 mg/dL in the top quartile (P for difference=0.052).

CONCLUSIONOur results suggested that the balance between n-6 and n-3 fatty acids may optimize the cardiovascular benefits from dietary PUFAs.

C-Reactive Protein ; metabolism ; Cholesterol, HDL ; blood ; Cholesterol, LDL ; blood ; Cross-Sectional Studies ; Erythrocyte Membrane ; metabolism ; Fatty Acids, Omega-3 ; blood ; Fatty Acids, Omega-6 ; blood ; Female ; Humans ; Lipids ; blood ; Male ; Middle Aged ; Triglycerides ; blood