BACKGROUND:Animal models of atherosclerosis play an important role in the research of the pathogenesis, occurrence and development of atherosclerosis, as wel as in the prevention and treatment of atherosclerosis. OBJECTIVE:To summarize and discuss the establishment of atherosclerosis models, explore the current situation and advance of atherosclerosis models, compare the advantages and disadvantages of various methods, and provide evidence for clinical investigation. METHODS:A computer-based online search was conducted in SinoMed, VIP, Wanfang and PubMed databases by using the key words of “animal model, atherosclerosis, progression” from January 1990 to December 2014. The language was limited to both Chinese and English. Relevant articles were screened according to inclusion and exclusion criteria. The documents about the methods of atherosclerosis model preparation, method improvement as wel as their advantage and disadvantage were summarized. RESULTS AND CONCLUSION: A total of 137 articles were included. Among them, 93 articles published earlier, duplicated, and similarly were excluded, and 44 references were finaly included. The results demonstrated that, the main characteristics of models established with the high-fit diet are lipid storage. This method is commonly used due to its fixable operation. However, this method needs a long time and the position of athermanous plaque is unstable. That’s the reason why immune method, nerve and mechanical damaged method, hemodynamic method and genetic engineering method emerge. These novel methods facilitate the model establishment, and have their advantages and disadvantages. To a certain extent, they are different from human spontaneous type. Partial ligation plays irreplaceable functions when studying complications of atherosclerosis. The athermanous plaque formed by baloon injury shows accurate position, which is convenient for researchers to observe the changes of athermanous plaque after conducting al kinds of interventions. This model based on immunological method could provide guidance of vaccine research for atherosclerosis prevention. Therefore, they can choose more appropriate model formation method according to their own needs.

Objectives To summarize the clinical feature of severe adenovirus pneumonia (SAP) in children and further to improve prognosis and clinical diagnosis of SAP. Methods The clinical data of 213 children with SAP from June 2009 to June 2011 were retrospectively analyzed. Results Among 213 patients, 155 (72.8%) children were aged 6 months to 2 years, with a males to females ratio of 2.7∶1. The onset of 158 patients (74.2%) was in winter and spring. All patients had fever, 172 (80.8%) with high temperature of 39.1℃-41℃, 161 (75.6%) with a fever lasting more than 2 weeks. Two hundred and ifve (96.2%) patients had cough in the early stage, 120 (56.3%) with wheeze, 139 (65.3%) with moist rales and wheezing in the lung. Imaging ifndings in the preliminary stage of SAP showed that 63 patients (92.6%) had pulmonary interstitial changes;in critical stage, 80 patients (54.4%) had segmental consolidation and 33 (22.4%) with pleural effusion, 25 (17.0%) with pleuritis;in recovery phase, 50 patients (68.5%) showed absorption in segmental area of consolidation. All cases had complications, 175 (82.2%) with respiratory failure, including 10 (4.7%) with ARDS;among extrapulmonary complications, diseases of cardiovascular system (64.3%) and alimen-tary system (44.1%) were the most common ones, and the occurrence of myocarditis and diarrheal disease were the highest. Age, ARDS and more than two kinds of complications had adverse impact on the outcomes, and the difference was signiifcant (P<0.05). Conclusions SAP is a severe pneumonia with long duration of high fever, severe clinical manifestations with more complications. When SAP is suspected, it is recommended to complete etiological and chest radiographic examination for early diagnosis and treatment.

Objective:To analyze the characteristics of sleep disordered breathing (SDB) in children with allergic rhinitis (AR), and improve the diagnosis and treatment at AR combined with obstructive sleep apnea (OSA).Methods:The clinical data of 120 patients with AR and OSA (AR and OSA group) admitted to the respiratory department at Shenzhen Children′s Hospital from May 2019 to December 2020 were retrospectively analyzed.A total of 120 children diagnosed with OSA and excluded AR during the same period were selected as control group.The SDB day and night symptoms, sleep structure characteristics and sleep breathing events were compared between two groups.Results:The average course of disease in children with AR and OSA was significantly longer than that in control group ( P=0.030). The main manifestations of children in AR and OSA group were mouth breathing (100.0%), snoring (99.2%), nasal obstruction (88.5%), and restless sleep (68.0%). There was no significant difference in sleep structure between two groups ( P>0.05), but the sleep efficiency of AR and OSA group was significantly lower than that of control group ( P=0.028). The respiratory events apnea hypopnea index, obstructive apnea index, obstructive apnea hypopnea index, hypopnea index and oxygen desaturation index of each sleep period in AR and OSA group were significantly higher than those in control group ( P<0.05). Among the children in AR and OSA group, moderate and severe OSA were the main manifestations, and the difference between two groups was statistically significant ( P<0.001). Conclusion:The combination of AR delayed the course of OSA in children.The main characteristics of sleep disordered breathing in children with AR are mouth opening, restless sleep, snoring and nasal obstruction.The sleep efficiency is decreased.Obstructive hypopnea and apnea are the most common respiratory events, and oxygen deficiency often occurs in rapid eye movement phase.Children with AR are more likely to have moderate or severe obstructive sleep apnea.