Effects of a comprehensive nutrition education programme to change grade 4 primary-school students' eating behaviours in China.

Objective: As part of a national initiative to reduce child obesity, a comprehensive school-based nutrition education intervention to change eating behaviours among grade 4 primary-school students was developed, implemented and evaluated.

Design: The intervention was developed by school staff, with technical assistance from outside health education specialists. The programme included school facility upgrades, school teacher/staff training, curriculum changes and activities for parents.

Effects of selected socio-demographic characteristics on nutrition knowledge and eating behavior of elementary students in two provinces in China.

Background: National and international child health surveys have indicated an increase in childhood obesity in China. The increase has been attributed to a rising standard of living, increasing availability of unhealthy foods, and a lack of knowledge about healthy diet. The objective of this study was to assess the effect of selected socio-demographic characteristics on the BMI, nutrition knowledge, and eating behavior of elementary school children.

Relationships of health literacy, health behavior, and health status regarding infectious respiratory diseases: application of a skill-based measure.

This study aimed to explain the relationships among health literacy, health behavior, and health status, using a newly developed skills-based measure of health literacy regarding respiratory infectious diseases. This instrument was designed to measure individuals' reading, understanding, and calculating ability, as well as their oral communication and Internet-based information-seeking abilities. A pilot survey was conducted with 489 residents in Beijing, China, to test the reliability and validity of the new measure.

Measuring health literacy regarding infectious respiratory diseases: a new skills-based instrument.

Background: There is no special instrument to measure skills-based health literacy where it concerns infectious respiratory diseases. This study aimed to explore and evaluate a new skills-based instrument on health literacy regarding respiratory infectious diseases.

Methods: This instrument was designed to measure not only an individual's reading and numeracy ability, but also their oral communication ability and their ability to use the internet to seek information.

Determinants of health literacy and health behavior regarding infectious respiratory diseases: a pathway model.

Background: Health literacy has been defined as the degree to which individuals have the capacity to obtain, process, and understand the basic health information and services needed to make appropriate health decisions. Currently, few studies have validated the causal pathways of determinants of health literacy through the use of statistical modeling. The purpose of the present study was to develop and validate a health literacy model at an individual level that could best explain the determinants of health literacy and the associations between health literacy and health behaviors even health status.

[Status of knowledge and behaviors about chronic diseases prevention for Chinese residents in 2008].

Objective: To learn the status of knowledge and behaviors about chronic diseases prevention for Chinese residents, and to provide basis for developing health education strategy.

Methods: Using multi-stage stratified random cluster sampling, 79 542 residents aged 15-69 years old from 31 provinces (municipalities and autonomous regions) and Xinjiang Production and Construction Corps in Mainland China were investigated with the questionnaire of chronic diseases prevention.

Results: There were 78 429 valid questionnaires recovered.

Molecular mechanism of icariin on rat asthmatic model.

Background: Effects of icariin on airway inflammation in asthmatic rats and the intervention of LPS induced inflammation are interfered with the machanism of icariin. Our study aimed to observe the effect of icariin on ovalbumin-induced imbalance of Th1/Th2 cytokine expression and its mechanism.

Methods: Sixty male SD rats were randomly divided into control group (PBS), asthma group (ovalbumin (OVA)-induced), dexamethasone group, and OVA+icariin low, medium and high dose groups (5, 10, 20 mg/kg, respectively).

[Spectral characteristics analysis and remote sensing inversion of water quality parameters in Han Shiqiao wetland].

The research object of the present paper is the water quality of Han Shiqiao wetland water. Water spectrum and quality parameters were measured on the site and in the lab. The authors simulated the relationships between water quality parameters and the best bands or combination, and built the multiple linear regression equation to obtain characteristic spectrum of the key water quality parameters.

Calcium supplementation for 2 years improves bone mineral accretion and lean body mass in Chinese adolescents.

Objective: to study the effects of different doses of calcium intake on bone health and body composition in Chinese adolescents.

Methods: a double-blind randomized controlled trial of calcium carbonate supplementation in 257 healthy adolescents aged 12-15 years old for 24 months. Subjects were randomly assigned to four groups receiving chewable calcium carbonate tablets providing elemental calcium at 63 mg/d, 354 mg/d, 660 mg/d, 966 mg/d, respectively.

Factors affecting calcium balance in Chinese adolescents.

Chinese dietary reference intakes (DRIs) for calcium were developed mainly from studies conducted amongst Caucasians, yet a recent review showed that reference calcium intakes for Asians are likely to be different from those of Caucasians (Lee and Jiang, 2008). In order to develop calcium DRIs for Chinese adolescents, it is necessary to explore the characteristics and potential influencing factors of calcium metabolic balance in Chinese adolescents. A total of 80 students (15.

Interactions between effects of estrogen receptor gene polymorphisms on BMD and experiences of the first spermorrhea in Chinese Han boys.

Objective: To study the interaction between polymorphisms of estrogen receptor (ER) gene and puberty on bone mineral density (BMD).

Methods: One hundred and forty-six boys aged 13-17 years were divided into two groups according to their first spermorrhea. DNA was analyzed for Xba I and Pvu II genotypes by PCR-RFLP.

[Effect of calcium supplementation on absorption rates of zinc and iron in 12-17 years old adolescents].

Objective: To study the effect of calcium supplementation on absorption rate of zinc and iron by calcium metabolic balance study.

Methods: A total of 80 students (12-17 years old) were selected randomly from 320 subjects who had been supplemented with calcium supplementation for one year. 10 boys and 10 girls were randomly selected from each calcium supplementation group to attend a 10-day metabolic balance study.

[The relation between body mass index and percentage body fat among Chinese adolescent living in urban Beijing].

Objective: To study the relation between body mass index (BMI) and percentage body fat (PBF) in Chinese adolescent, and to compare the prevalence of overweight and obesity using BMI or PBF standards.

Methods: BMI from 757 girls with an average aged of 10.1 years in the rural areas, 165 girls average aged 13.