The innate immune system is critical to protect against microorganisms,but it is immature.Preterm newborn have to stay longer in NICU.They are vulnerable to infections.The common pathogen is coagulase-negative staphylococci which is the most cause of mortality for preterm newborn.So it is the key to understand the interaction between innate immune system of preterm newborn and pathogen.

Precocious puberty in children begins with the increased pulsatile secretion of the gonadotrophin-releasing hormone(GnRH)from hypothalamic.Recently,KISS1-GPR54 Was found to be a key factor to regulate the secretion of GnRH and the onset of puberty.Kisspeptin interacts with its receptor GPR54.which expressed on the hypothalamic GnRH neurons.and affects GnRH pulsatile release and the onset of puberty.GPR54 gene mutation causes the incidence of GnRH-dependent precocious puberty.

Asthma is one of the most chronic airway inflammatory disease,threating the children's health.Bronchiolitis significantly increased the risk of childhood asthma,and many studies have focused on looking for the related factors between bronchiolitis and asthma in recent years.It may be helpful to understand the pathogenesis of the asthma,so as to find new measures for asthma's prevention and treatment.In present studies,bronchiolitis influenced the development of asthma in genetics,immunity,environmental factors and so on.So far,whether bronchiolitis directly causes the development of the childhood asthma,the prevention of bronchiolitis could reduce the asthma morbidity or not,both need more evidences yet.

Objective To explore the influence of health education on the cognition and behavior of oc-cupational protection for nurses in operation room. Methods 85 nurses in operation rooms from 2 compre-hensive hospitals were selected with random clustering methods, baseline surveys and health education about the cognition and behavior of occupational protection were carded out in them. Results The awareness rate of occupational protection knowledge after health education was higher than that before it. The behavior of occupa-tional protection was better than that of before health education. Conclusions Health education can advance cognition and ability of occupational protection, then can prevent occupational risks effectively.

Melatonin has neuroprotective effect on hypoxic-ischemic brain damage(HIBD), which easily crosses the blood-brain barrier and plays neuroprotective role in reducing oxidative damage. Melatonin may be effective in preventing learing diabilities. It has been suggested that melatonin soporific effect is secondary to its ability to induce hypothermia. Neuroprotective effect of hypothmia has been proved. Howere, it is clear that hypothemia will not provide complete protection of HIBD and melatonin might augment protection of hypothemia in HIBD.

In recent years, ultrasonographic ultrasonographic ultrasonographic resolution level of gastrointestinal anatomy has been improved significantly due to perfection of ultrasonic instrument and development of ultrasound diagnostic technology. Currently, ultrasonographic ultrasonographic ultrasonography plays an effective role of evaluation of children's gastrointestinal obstruction diseases, especially congenital hypertrophic pyloric stenosis, gastroesophageal reflux, malrotation, midgut volvulus, superior mesenteric artery syndrome,duplication, intussusception, meconium peritonitis, meconium ileus, and congenital giant colon. The clinical manifestation and the ultrasonographic feature of all these diseases mentioned above are reviewed in this paper.

Objective To study the effect of evidence-based nursing care on medication compliance and rehabilitation effect of elderly patients with angina pectoris. Methods 89 cases of elderly people with angina pectoris were divided into the control group(43 cases )and the observation group(46 cases).The control group was treated with cardiology common nursing, the observation group received evidence-based nursing care of psychological nursing, life nursing and medication compliance. The medication compliance in each period of a year and rehabilitation effect after one year were analyzed and compared between the two groups. Results The medication compliance rate of the observation group was higher than the control group after 1, 2, 4weeks, 3, 6 months and 1 year, the total effective rate of rehabilitation was 91.3% in the observation group, also higher than the control group (62.8%)after 1 year. Conclusions Evidence-based nursing care can improve the medication compliance and the effect of rehabilitation of elderly patients with angina psctoris.

Objective To approach the clinical manifestations of childhood cough variant asthma, and summarize the dingnosis and treatment experience. Methods Retroepective analyzed the clinical data of 49 children with cough variant asthma. Results In 49 children patients,male 27 cases,female 22 cases;Age:1 ～3 years old( 11 cases) ,4 ～6 years old(25 cases) ,7 ～ 12 years old( 13 cases) ;Duration:1 ～24 months;Incidence season:wintry spring (31 cases) ,summer(7 cases) ,autumn(11 cases). Diagnoeis:CAV was 8 cases,and 24 cases were misdiagnoeed as bronchitis, 11 cases were misdiagnosed as upper respiratory tract infection,3 cases were misdiagnosed as chronic pharyngitis,2 cases were misdiagnosed as sinusitis,1 case was misdiagnosed as bronchial foreign body. In 49 children patients,32 cases were significantly effective, 15 cases effective and 2 cases noneffective. Conclusion The clinical manifestations of CAV was noepecific,and miscdiagnosis rate was high. Effect of treatment with expansion bronchical and anti-infection methods was good.

Objective To explore the psychometric properties of the Chinese version of the Functional Ability of Visually Impaired Questionnaire (CfaVIQ) by using Rasch Analysis. Methods The faVIQ was translated and adapted into the Chinese-version faVIQ (CfaVIQ). The CfaVIQ was completed by 215 visionlly impaired patients. The data were Rasch-analyzed with the Rating Scale Model of Andrich for calculating item fit statistics, determining the separation index by using Winsteps Rasch measurement program. Results Rasch model analysis indicated individual separation index (3.55) and project separation index (8.01) were both arithmetic greater than 2; the inlier-sensitive fit Mean Square (infitMnSq) and outlier-sensitive fit Mean Square (outfitMnSq) of Items, Persons were both within the range of 0.5-1.5, indicating great coincidence to the model;Wright map analysis showed the distribution of the sample ability and item difficulty was ideally normal. Coefficient of internal consistency was 3.55, separation reliability was 0.93. Pearson correlation coefficient of test-retest reliability was 0.92. Pearson correlation coefficient between CfaVIQ and vision (-0.67), visual acuity (-0.14). The National Eye Institute 25 Item Visual Function Questionnarie (NEI-VFQ25) (0.79) indicated a good construct validity. All the items′outfitMnSq, except outfitMnSq>1.5 of item 10 and item 23,were within the range of 0.5-1.5. Criterion Validity was 0.922 (95%CI:0.858-0.987). Conclusions The CfaVIQ is a culturally specific vision quality of life measure instrument. It can sensitively assess the quality-of-life in the visually impaired group. Rasch measurement model can provide comprehensive and positive information and has good application prospects for analysis of CfaVIQ.