Showing papers by "Chinese Center for Disease Control and Prevention published in 1998"
TL;DR: Chinese adolescents have experienced an improvement in diet and nutritional status, but under-nutrition is still an important nutrition problem, especially among young and poor groups, and more attention should focus on the increase of dietary fat intake and obesity.
Abstract: Objective: To increase understanding about current dietary patterns and short-term relationships between economic change and adolescent nutrition in a lower-income country, using the 1991 and 1993 China Health and Nutrition Survey data. Design: Cross-sectional study. Setting: Eight provinces in China that vary substantially in geography, economic development, public resources, and health indicators. Subjects: 2236 and 2018 adolescents aged 10–18 years who completed three 24-hour recalls in the 1991 and 1993 survey, respectively. Results: Chinese adolescents experienced an improvement of diet and nutritional status. The prevalence of stunting declined from 23% in 1991 to 19% in 1993. Under-nutrition was a problem of concern although the prevalence (12–13%) was relatively low. Overweight was emerging as a problem associated with young, high-income and urban adolescents, but the prevalence (4%) was quite low compared with developed countries. Chinese adolescents’ energy and protein intakes were adequate compared with the American RDA. About 27% of the participants derived more than 30% of their dietary energy from fat and 16% of them derived over 10% of energy from saturated fat by 1993. Conclusion: Chinese adolescents have experienced an improvement in diet and nutritional status, but under-nutrition is still an important nutrition problem, especially among young and poor groups. More attention should focus on the increase of dietary fat intake and obesity. Source of support: Funding comes from the National Institutes of Health (R01 HD30880), the Chinese Academy of Preventive Medicine, and the National Science Foundation (grant #37486).
104 citations
Journal Article•
TL;DR: The results not only demonstrated a horizontal transmission of the rickettsiae between ticks and hosts but also suggested that R. sibirica is widely distributed in China and its hosts and vectors are various, all that indicating the existence of natural foci of North Asia tick-borne spotted fever specific to China.
Abstract: The primers Rr 190.70p and Rr 190.602n were used to detect spotted fever group (SFG) rickettsiae by polymerase chain reaction (PCR) in ticks and small mammals collected in three different regions of China. The obtained results indicated that specific DNA fragments of SFG rickettsiae were amplified from Dermacentor silvarum, D. sinicus, D. auratus, Haemaphysalis concinna, H. wellingtoni, H. yeni, Apodemus agrarius, Microtus fortis. Clethrionomys rufocanus, Ondatra zibethica, Rattus flavipectus and hedgehog. The PCR product were digested with restriction endonucleases PstI and RsaI and the obtained electrophoretic profiles were compared with those of the prototype strains of SFG rickettsiae by the restriction fragment length polymorphism (RFLP) technique. The comparisons showed that the profiles were identical to those of Rickettsia sibirica. In addition, three new isolates of R. sibirica were obtained from H. yeni, D. sinicus and hedgehog, and designated NH-95, BJ-95 and BHJ-95, respectively. These results not only demonstrated a horizontal transmission of the rickettsiae between ticks and hosts but also suggested that R. sibirica is widely distributed in China and its hosts and vectors are various, all that indicating the existence of natural foci of North Asia tick-borne spotted fever specific to China.
26 citations
Journal Article•
TL;DR: The proportion of low body weight and stunting children is the highest in the group with maternal education level being below preliminary school, the lowest in thegroup with education levelbeing above high middle school and the higher the level of maternal education, the greater the percentage of nutrients intake of China RDA, especially those from animal food.
Abstract: This analysis is based on the data from China Health and Nutrition Survey in collaboration with University of North Carolina at Chapel Hill undertaken in 8 provinces of China from 1993 to 1996. Totally, 1098 mother-child pairs under age 6 were investigated. Descriptive analysis and stratified analysis are applied to investigate the impact of maternal education on the dietary and nutritional status of children. Both the crude analysis and after controlling for confounding variables, maternal education in the population remains statistically relevant to children's dietary and nutritional status. The proportion of low body weight and stunting children is the highest in the group with maternal education level being below preliminary school, the lowest in the group with education level being above high middle school. Moreover, in these three groups, the higher the level of maternal education, the greater the percentage of nutrients intake of China RDA, especially those from animal food. These results fully illustrate the importance of maternal education for the prevention of malnutrition in children.
6 citations
Journal Article•
TL;DR: Lower child mortality proved to be associated with better socio-economic conditions (higher per capita products, higher proportions of residents with higher level of education, lower proportion of less educated people and illiteracy) in province Henan.
5 citations
Journal Article•
TL;DR: The nucleotide sequence of rOmpA gene fragment of three Chinese isolates of spotted fever group rickettsiae (SFGR) was determined and it was shown that the isolates BJ-90 and Ha-91 are closely related to each other and R. sibirica, one of the prototype SFGR strains.
Abstract: The nucleotide sequence of rOmpA gene fragment of three Chinese isolates of spotted fever group rickettsiae (SFGR) (BJ-90, Ha-91 and HLJ-054) was determined. The obtained nucleotide and putative amino acid sequences were compared with those of another Chinese SFGR isolate (HL-93) and several prototype SFGR strains. This comparison showed that the isolates BJ-90 and Ha-91 are closely related to each other and R. sibirica but different from the isolates HLJ-054 and HL-93. We assume that with exception of the isolates HLJ-054 and HL-93 that represent new, unique members of SFGR, the isolates BJ-90 and Ha-91 are closely related to R. sibirica, one of the prototype SFGR strains.
4 citations
Journal Article•
TL;DR: The results show that the more contribution of the mother's income to the family, the more nutrients intake of their children, especially in lower income families, illustrated that the income of mother may be more important for children's dietary status than that of other members of the family.
Abstract: The data of this study are based on the project "China Health and Nutrition Survey" carried out in 8 provinces of China from 1989 to 1998 in collaboration with the University of North Carolina at Chapel Hill, USA. Totally, 1180 and 916 mother-child pairs aged 2-6 were investigated in 1991 and 1993 respectively. Descriptive and stratified analysis is applied to investigate the impact of maternal income on the nutrients intake of children. It is found that the nutrients intake of children in higher maternal income group is greater than that in lower maternal income group. After adjusting for family income, the results show that the more contribution of the mother's income to the family, the more nutrients intake of their children, especially in lower income families. It is illustrated that the income of mother may be more important for children's dietary status than that of other members of the family.
3 citations
TL;DR: A composite EBV-based expression vector, pEBAF, was constructed with the 5′-flanking sequence of human α-fetoprotein gene as a promoter, which has potential applications in gene therapy for the treatment of hepatocellular carcinoma.
Abstract: A composite EBV based expression vector, pEBAF, was constructed with the 5′ flanking sequence of human α fetoprotein gene as a promoter Complexed to galactosylated histone, this vector with a foreign DNA insertion could be transferred into hepatic cells via the asialoglycoprotein receptor mediated endocytosis pathway It was replicated as an episome, and its expression was restricted to the AFP positive hepatoma cells This new gene delivery method has the following advantages: (i) absence of a potential toxicity is related to viral vectors; (ii) the targeting is specific to AFP positive hepatoma cells; (iii) the introduction of the EBV replicon into this system results in the high level expression and long term maintenance of the transferred gene This novel gene delivery system has potential applications in gene therapy for the treatment of hepatocellular carcinoma
1 citations