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OBJECTIVE To study if there is any association between frequency of HLA-DRB1 and DQB1 genes and susceptibility or resistance to Helicobacter pylori (Hp) infection among children of Yi ethnic group in Kunming for understanding the immunogenetic features of the digestive diseases associated with Hp infection. METHODS Peripherial blood samples were collected(More)
Previous studies revealed that low calcium intake is related to high prevalence of cardiovascular diseases such as hypertension. However, the relationship between serum calcium and blood pressure was unclear. The prevalence of hypertension is high in China. Thus, the aim of this study was to evaluate the serum calcium level between hypertensive and(More)
BACKGROUND Numerous studies have reported that low calcium intake is related to a higher prevalence of cardiovascular disease. However, the relationship between serum calcium and coronary heart disease is unclear. The purpose of this study was to compare serum calcium levels in patients with coronary heart disease and those in healthy individuals. METHODS(More)
Horizontal gene transfer (HGT) plays a key role in bacterial evolution, especially with respect to antibiotic resistance. Fitness costs associated with mobile genetic elements (MGEs) are thought to constrain HGT, but our understanding of these costs remains fragmentary, making it difficult to predict the success of HGT events. Here we use the interaction(More)
We developed a highly sensitive method to detect liver tissue stiffness with atomic force microscopy (AFM), and investigated the physical features of hepatocarcinogenesis. Wistar rats received weekly intraperitoneal injections of diethylnitrosamine (DEN) or saline (control) followed by a 2-week wash-out period. Liver samples were harvested at 10, 14, or 18(More)
OBJECTIVE To investigate the HLA-DRB1, DQB1 allele polymorphism in Kunming Yi nationality population. METHODS HLA-DRB1, DQB1 DNA types in 70 healthy children of Yi nationality in Kunming were analyzed by polymerase chain reaction with sequence specific primer (PCR-SSP). RESULTS Twelve alleles at HLA-DRB1 locus were observed in the 70 children: the(More)
OBJECTIVE To explore the molecular characteristics and molecular variation of human rotavirus (HRV) strains and to understand the relationship between clinical characteristics and epidemiology of different HRV-VP7 and NSP4. METHODS Double-strand RNA of rotavirus extracted from stool samples was used as the template for reverse transcription of gene VP7,(More)
OBJECTIVE To explore the immunogenetic features of human leukocyte antigen DRB1, DQB1 locus and children with Helicobacter pylori (H. pylori) infection in Han ethnic population in Kunming and its association with digestive diseases and H. pylori to better understand the immunogenetic features of the H. pylori infection. METHODS Polymerase chain(More)
This paper analyzes the existing algorithms of coverage of WSN, then proposes an algorithm of coverage of network base on the probability sensing model. First, the algorithm judges whether exists a sponsor set of the node i where node i is any node in the monitoring area. If the sponsor set is not existed, the node must keep working; else the algorithm(More)
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