Association of temperament type and mother's emotional state with acute respiratory infection in children / 南方医科大学学报

OBJECTIVE@#To explore the correlation of temperament type and mother's emotional state with acute respiratory tract infections in children so as to provide evidence for comprehensive treatment of the infections.@*METHODS@#A total of 200 children aged between 3 and 6 were enrolled in this study from two kindergartens of Guangzhou and Hengyang. The mothers were invited to complete a questionnaire of the children's general information followed by assessment using children's temperament scale and the Depression-Anxiety-Stress Scale.@*RESULTS@#The total incidence of acute respiratory infection was significantly higher in children with a hard- to-raise temperament than the easy- to-raise children (P < 0.05); the incidences of acute rhinitis, acute pharyngitis, acute laryngitis and acute bronchitis were all significantly higher in the hard-to-raise children (P < 0.05). A significant positive correlation was identified between the total number of episodes of acute respiratory tract infection in children and their mothers' stress and anxiety levels (P < 0.01). Acute rhinitis and acute tracheitis in the children were both positively correlated with the mothers' stress scores (P < 0.05), while acute pharyngitis and acute laryngitis were positively correlated with the mothers' anxiety scores (P < 0.05), while acute bronchitis was positively correlated with the mothers' stress and anxiety scores (P < 0.05). Multiple linear regression analysis with the factors influencing the types of acute respiratory tract infections in children as the independent variables suggested that the easy-to-raise type of temperament was a protective factor against acute rhinitis in children (P < 0.05), while mothers' anxiety was a risk factor of acute laryngitis in children (P < 0.05); the mothers' stress was a risk factor for acute bronchitis in children (P < 0.05).@*CONCLUSION@#Acute respiratory tract infection in children is closely related to the temperament type of the children and the emotional state of the mothers, which are important therapeutic targets in comprehensive interventions of acute respiratory tract infection in children.

Experimental study on single-electrode metal detector for taking off foreign bodies from the swine / 中国骨伤

<p><b>OBJECTIVE</b>To study the practicability of single-electrode metal detector by using it to take off foreign bodies from swine.</p><p><b>METHODS</b>The single-electrode metal detector was invented based on the theory of complementary oscillator. Twelve extremities were obtained from 3 Minnesota-Hormel stains 7-month old male swine. All the extremities were divided into 3 groups: lump metal foreign bodies were planted in group A, needle shape metal foreign bodies were planted in group B, and sand shapd metal foreign bodies were planted in group C. The self-invented single-electrode metal detector was used to take off these foreign bodies, and the taking times were recorded. After the operation, the X-ray was used to examine if the foreign bodies were still in the extremities of the swine.</p><p><b>RESULTS</b>The foreign bodies were taken off completely in the 3 groups, and the average time were 38 s, 3 min and 12 s, and 3 min and 59 s respectively. The X-ray examination confirmed that the detector could take off the foreign bodies completely.</p><p><b>CONCLUSION</b>This detector has satisfactory effect in animal experiment, which could detect and extract metal foreign bodies quickly and exactly without X-ray help duration the operation, and can be used in clinical cases secondly.</p>

Comprehensive sequential interventional therapy for hepatocellular carcinoma / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Since the 1980s, various approaches to interventional therapy have been developed, with the development and achievement of medical imaging technology. This study aimed to evaluate the effectiveness of comprehensive sequential interventional therapy especially personal therapeutic plan in 53 radical cure patients with hepatocellular carcinoma (HCC).</p><p><b>METHODS</b>From January 2003 to January 2005, a total of 203 patients with HCC received sequential interventional treatment in our hospital. Fifty-three patients achieved radical cure outcomes. Those patients were treated with transcatheter arterial chemoembolization (TACE), radiofrequency ablation (RFA), percutaneous ethanol injection (PEI), or high intensity focused ultrasound (HIFU), sequentially and in combination depending on their clinical and pathological features. PET-CT was used to evaluate, assess, and guide treatment.</p><p><b>RESULTS</b>Based on the imaging and serological data, all the patients had a personal therapeutic plan. The longest follow-up time was 24 months, the shortest was 6 months, and mean survival time was 16.5 months.</p><p><b>CONCLUSION</b>Comprehensive sequential interventional therapy especially personal therapeutic plan for HCC play roles in interventional treatment of HCC in middle or advanced stage.</p>

Comparative study on in vitro stationary culture system or superfusion culture system of cow mammary tissue / 生物工程学报

Dairy cow mammary tissue was cultured in superfusion system or stationary system, and the influence of these two methods in the activity and ultrastructure of tissue was investigated according to LDH vigor, trypan blue dying, agrose gel electrophoresis, transmission microscope observation. The results showed that the mammary tissue cultured in superfusion system could keep normal tissue activity and ultrastructure within 12-60 h in DMEM plus 10% calf serum, while mammary tissue stationary culture could keep normal tissue activity and ultrastructure within 60-108 h. Both culture systems had some advantages and disadvantages.