Objective To establish and evaluate a reliable and highly reproducible neonatal rat model of hyper-bilirubinemia and to provide an experimental basis for research of kernicterus and related mechanism of neuroinjury.Meth-ods Sixty 7-day old SD rats (28 male and 32 female) were used in this study.Three doses of phenylhydrazine hydrochlo-ride (25, 50, and 75 mg/kg) were intraperitoneally injected respectively to the neonatal rats to establish models of hyper-bilirubinemia induced by hemolysis.The control group was set up at the same time.48 hours after the experimental treat-ment, the bilirubin in blood and brain tissue, neuron-specific enolase (NSE) of brain tissue, and hemoglobin were detec-ted to evaluate the models.Results Compared with the control group, the bilirubin in the blood and brain tissue and the brain tissue NSE in the three experimental groups were significantly higher than that in the control group (P<0.05), while hemoglobin content was significantly lower than that in the control group (P<0.05).The bilirubin of blood and brain tis-sue and brain tissue NSE in the 50 mg/kg and 75 mg/kg dose phenylhydrazine hydrochloride groups were significantly high-er than that of the 25 mg/kg dose group ( P<0.05) , while hemoglobin content was significantly lower than that of the 25 mg/kg dose group ( P<0.05 ) .There were no significant differences between the 50 mg and 75 mg dose groups ( P>0.05).Conclusions Intraperitoneal injection of phenylhydrazine hydrochloride can be used to produce neonatal rat mod-els of hyperbilirubinemia, mimicking the clinical features of this disease, and 50 mg/kg of phenylhydrazine hydrochloride is the best concentration.It is an ideal method to establish newborn rat models of hyperbilirubinemia.

Objective To investigate illness perceptions of primary nocturnal enuresis(PNE) children's parents,to summarize the nursing countermeasures.Methods A total of 232 children's parents were evaluated using PNE knowledge questionnaire from November 2011 to November 2014.According to the results,children and parents were cared and educated targetly.Then parents were evaluated again after the treatment and nursing intervention.Results A total of 210 parents completed the evaluation,95.2％ parents knew PNE was a disease,90.0％ parents had correct knowledge of PNE,91.9％ parents clearly knew the inducing factors of PNE,91.0％ parents clearly knew the detriment of PNE,89.5％ parents clearly knew the treatment method of PNE,94.8％ parents knew the recovery of PNE.There were significant differences before and after the nursing intervention (x2 =235.347,215.872,207.239,196.039,207.499,216.463,respectively;P ＜ 0.05).Conclusions Newly diagnosed PNE children's parents have a little awareness of the disease,especially lack of the awareness of inducing factors and treatment methods.According to personalcharacter,nursing education can improve the awareness of the disease,and enhance the level of disease control so as to reduce the economic burden on family and society.

As a stable genetic marker of human, blood group is expressed in a polymorphic system in the population. Blood group and pathogens mainly produce effects through the interaction between antigens and antibodies. On the one hand, they can promote pathogen colonization, invasion or evasion of host clearance mechanism, and on the other hand, they can make some hosts less susceptible to corresponding pathogens. By exploring the molecular mechanism between the blood group system and pathogenic microorganisms, it can provide a scientific basis for the treatment of human related diseases and the development of vaccines.
Blood Group Antigens/genetics* ; Disease Susceptibility ; Humans