Objective To research the effect of lysine vitamin B12 oral liquid in treatment ofinfantile anorexia.Methods 130 cases with infantile anorexia admitted from May 2015 to May 2016,which in our hospital pediatric outpatient,were randomly divided into control group and observation group,65 cases in each group.The control group were given routine therapy,including the general treatment,to guide parents to correct the poor eating habits of children and themselves,and given conventional doses of zinc gluconate oral solution according to age.Observation group weregiven lysine vitamin B12 oral solution based on the control group.4 weeks for a course of treatment,of the treatment lasted for three courses.Efficacy,immune function and related adverse reactions were compared between two groups.Results The total effective rate of observation group was significantly higher than that in the control group [93.85％(61/65)vs.(70.77％,46/60)].The difference was statistically significant(P<0.05).The immunological function of the observation group was significantly better than that of the control group,the difference was statistically significant(P<0.05).There was no significant adverse reactions in the two groups.Conclusions Based on the conventional treatment,the effect thatLysine vitamin B12 oral solution on the treatment of children with anorexia was significantly better,which can restore immune function,and application is safety.

Objective To investigate the possible damaging effect of infrasound on ultrastructure and permeability of rats′ blood retinal barrier (BRB). Methods Twenty mature male rats, averagely divided into 5 groups according to the exposure duration, were exposed to infrasound at a 16 Hz frequency and 130 dB sound pressure level in a pressure chamber for 2 hours per day. After exposed for 0, 1 day, 7, 14, and 21 days respectively, ultrastructural changes of rats′ BRB were observed through injection of lanthanum (La) nitrate solution, which was used as a tracer to demonstrate the breakdown of the BRB. Results With prolonging the duration of infrasound exposure, BRB structure lesion, chondriosome tumefaction, endoplasmic reticulum expandedness, membrane disc damage, retinal pigment epithelial cells distortion and putrescence, karyotheca expandedness, and La leakage on each level of retina aggravated gradually. Conclusion Infrasound may cause the breakdown of BRB, and the lesions aggravated with prolonged infrasound exposure time.