Objective:To investigate the levels of serum vitamin D and IgE in infants with different allergic risks and to analyze their correlations.Methods:In the present study,the participants were selected and recruited from ...Objective:To investigate the levels of serum vitamin D and IgE in infants with different allergic risks and to analyze their correlations.Methods:In the present study,the participants were selected and recruited from the infant ward of our hospital from February 2012 to December 2012.A total of 120 patients were selected and recruited.Among these patients,64 patients with symptoms of allergic diseases were assigned to the experimental group.The remaining 56 patients who had respiratory infections,but without other symptoms of allergic diseases,were assigned to the control group.The serum 25-hydroxyvitamin D3 levels were measured using liquid chromatography tandem mass spectrometry and the IgE levels were measured using radioimmunoassay in both experimental and control groups.Subsequently,the serum 25-hydroxyvitamin D3 levels and IgE levels were compared between the experimental group and control group.Results:The following findings were obtained through data comparison.The serum 25-hydroxyvitamin D3 level in the experimental group was 18.19±7.84 ng/mL,and the IgE level was 551.51±705.88 IU/mL.The serum 25-hydroxyvitamin D3 level in the control group was 21.95±7.834 ng/mL,IgE level was 49.39±32.46 IU/mL.The data comparison indicates that the serum 25-hydroxyvitamin D3 level in the control group was higher than the experimental group,and the IgE level in the control group was lower than the experimental group(P<0.05).Conclusion:The level of vitamin D3 in patients with allergic symptoms is relatively low.This may be one of the causes leading to allergies.At the same time,IgE is also one of the causes contributing to allergies.An elevation of the IgE level is very likely to cause the allergic,and there is a correlation between serum vitamin D and IgE levels.At the same time,research has found that proper supplementation of vitamin D3 can help prevent allergic diseases,and can be considered in a new and highquality program for the prevention of allergic diseases.展开更多
In this paper, studies on the modification on the low temperature coal tar pitch extracted from coal tar residue in Inner Mongolia are conducted. First, the low temperature coal tar pitch in liquid state is solidified...In this paper, studies on the modification on the low temperature coal tar pitch extracted from coal tar residue in Inner Mongolia are conducted. First, the low temperature coal tar pitch in liquid state is solidified with a higher softening point by chemical crosslinking modification. The modified coal tar pitch can achieve the standard pavement performance requirements. Then, the effects of chemical crosslinking agent and physical modification additives on the mechanical performance and toxic properties of coal tar pitch are investigated. The detoxification mechanism is also studied, which further promote the applicability of modified low temperature coal tar pitch in the pavement constructions.展开更多
文摘Objective:To investigate the levels of serum vitamin D and IgE in infants with different allergic risks and to analyze their correlations.Methods:In the present study,the participants were selected and recruited from the infant ward of our hospital from February 2012 to December 2012.A total of 120 patients were selected and recruited.Among these patients,64 patients with symptoms of allergic diseases were assigned to the experimental group.The remaining 56 patients who had respiratory infections,but without other symptoms of allergic diseases,were assigned to the control group.The serum 25-hydroxyvitamin D3 levels were measured using liquid chromatography tandem mass spectrometry and the IgE levels were measured using radioimmunoassay in both experimental and control groups.Subsequently,the serum 25-hydroxyvitamin D3 levels and IgE levels were compared between the experimental group and control group.Results:The following findings were obtained through data comparison.The serum 25-hydroxyvitamin D3 level in the experimental group was 18.19±7.84 ng/mL,and the IgE level was 551.51±705.88 IU/mL.The serum 25-hydroxyvitamin D3 level in the control group was 21.95±7.834 ng/mL,IgE level was 49.39±32.46 IU/mL.The data comparison indicates that the serum 25-hydroxyvitamin D3 level in the control group was higher than the experimental group,and the IgE level in the control group was lower than the experimental group(P<0.05).Conclusion:The level of vitamin D3 in patients with allergic symptoms is relatively low.This may be one of the causes leading to allergies.At the same time,IgE is also one of the causes contributing to allergies.An elevation of the IgE level is very likely to cause the allergic,and there is a correlation between serum vitamin D and IgE levels.At the same time,research has found that proper supplementation of vitamin D3 can help prevent allergic diseases,and can be considered in a new and highquality program for the prevention of allergic diseases.
基金Acknowledgements The research performed in this paper is supported by the National Natural Science Foundation of China （No.41372320）, and Fundamental Research Funds for the Central Universities （06500036）.
文摘In this paper, studies on the modification on the low temperature coal tar pitch extracted from coal tar residue in Inner Mongolia are conducted. First, the low temperature coal tar pitch in liquid state is solidified with a higher softening point by chemical crosslinking modification. The modified coal tar pitch can achieve the standard pavement performance requirements. Then, the effects of chemical crosslinking agent and physical modification additives on the mechanical performance and toxic properties of coal tar pitch are investigated. The detoxification mechanism is also studied, which further promote the applicability of modified low temperature coal tar pitch in the pavement constructions.
