UNLABELLEDWith different ratios, Omnipague mixed with cod liver oil and Meglumine Diatrizoate mixed with cod liver oil are compared with the stardard marker under the scanning of CT and MR in order to find the better ratio and materials for the marker. The experimental results show that the performances of both Omnipague mixed with cod liver oil and Meglumine Diatrizoate mixed with cod liver oil are better than the stardard marker.

CONCLUSIONOmnipague mixed with cod liver oil and Meglumine Diatrizoate mixed with cod liver oil can be used in making marker for neuronavigation system.

Biomarkers ; Cod Liver Oil ; Diatrizoate Meglumine ; Humans ; Iohexol ; Magnetic Resonance Imaging ; methods ; Neuronavigation ; instrumentation ; methods ; Reference Values ; Tomography, X-Ray Computed ; methods

OBJECTIVEThe objective of this study was to observe the interventional effect of cod liver oil supplementation on re-vaccination to hepatitis B virus (HBV) among infants and young children.

METHODSAll 7-36 months old infants and young children, who had been vaccinated with obligatory HBV vaccines routinely by the national technical and administrative procedures for HBV vaccination on children of China, were convened among villages in Linyi, Shandong province, from October 2008 to March 2009. After detection of serum anti-HBV, one hundred children with lower serum anti-HBV were picked out for the randomized, double blinded, placebo controlled vitamin A supplementation study. The children in the intervention group (50 subjects) took 0.5 g condensed cod liver oil (containing 25 000 IU vitamin A and 2500 IU vitamin D(2)) every 15 days for six times. The children in the control group (50 subjects) were given corn oil with same volume. All children were re-vaccinated at the 30th and the 60th day of the experiment. The serum samples were collected from each child at the 90th day of the experiment. Retinol concentration in serum samples was analyzed with HPLC method before and after the intervention. The levels of serum anti-HBs were detected by the electro-chemi-luminescence immunoassay (ECLIA).

RESULTSTotal 74 children finished the supplemental experiment and blood collection, 37 subjects in each group, respectively. After intervention, the serum retinol level in the experimental and control group were (404.1 ± 123.1) and (240.8 ± 92.8) µg/L (t = 6.441, P < 0.01), respectively. The serum anti-HBs levels in the experimental and control group were (2737.2 ± 2492.6) and (1199.7 ± 2141.6) U/L (t = 2.846, P < 0.01), respectively. The rate of weak or no-answer case in experimental and control groups was 0.00% (0/37) and 10.81% (4/37) (χ(2) = 4.229, P = 0.040), respectively.

CONCLUSIONThe results showed that vitamin A supplementation might enhance the re-vaccination reaction against HB vaccine in infants and young children.

Child, Preschool ; Cod Liver Oil ; therapeutic use ; Dietary Supplements ; Double-Blind Method ; Hepatitis B ; prevention & control ; Hepatitis B Antibodies ; blood ; immunology ; Hepatitis B Vaccines ; immunology ; Hepatitis B virus ; immunology ; Humans ; Immunity, Active ; Infant ; Vitamin A ; therapeutic use ; Vitamins ; therapeutic use