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1.
Introduction
Head lice infestations cause distress in many families. A well-founded strategy to reduce head lice prevalence must shorten the infectious period of individual hosts. To develop such a strategy, information about the actions taken (inspection, treatment and informing others about own infestations), level of knowledge and costs is needed. The present study is the first to consider all these elements combined.Materials and Methods
A questionnaire was answered by 6203 households from five geographically separated municipalities in Norway.Results
94% of the households treated members with pediculicides when head lice were discovered. Nearly half of the households checked biannually or not at all. Previous occurrence of head lice and multiple children in a household improved both checking frequency and method. More than 90% of the households informed close contacts about their own pediculosis. Direct costs of pediculosis were low (less than €6.25 yearly) for 70% of the households, but the ability to pay for pediculicides decreased with the number of head lice infestations experienced. One in three households kept children from school because of pediculosis. Other widespread misconceptions, such as that excessive cleaning is necessary to fight head lice, may also add unnecessary burden to households. School affiliation had a significant effect on checking frequency and method, knowledge and willingness to inform others about own pediculosis.Conclusions
Increased checking frequencies appear to be the most important element to reduce head lice prevalence in Norway and should be a primary focus of future strategies. National campaigns directed through schools to individual households, might be an important tool to achieve this goal. In addition to improving actions taken, such campaigns should also provide accurate information to reduce costs and enhance the level of knowledge about head lice in households. 相似文献2.
James Mallet Margarita Beltrán Walter Neukirchen Mauricio Linares 《BMC evolutionary biology》2007,7(1):28
Background
To understand speciation and the maintenance of taxa as separate entities, we need information about natural hybridization and gene flow among species. 相似文献3.
Background
Abundant information about gene products is stored in online searchable databases such as annotation or literature. To efficiently obtain and digest such information, there is a pressing need for automated information-summarization and functional-similarity clustering of genes. 相似文献4.
Background
Genome and metagenome studies have identified thousands of protein families whose functions are poorly understood and for which techniques for functional characterization provide only partial information. For such proteins, the genome context can give further information about their functional context. 相似文献5.
Andreas Wagner 《BMC systems biology》2007,1(1):33-9
Background
Organisms live and die by the amount of information they acquire about their environment. The systems analysis of complex metabolic networks allows us to ask how such information translates into fitness. A metabolic network transforms nutrients into biomass. The better it uses information on available nutrient availability, the faster it will allow a cell to divide. 相似文献6.
Background
The genetic epidemiology of ischemic stroke remains relatively unstudied, and information about the genetic epidemiology of ischemic stroke in populations with significant minority representation is currently unavailable. 相似文献7.
8.
Kris Audenaert Elien Callewaert Monica Höfte Sarah De Saeger Geert Haesaert 《BMC microbiology》2010,10(1):112
Background
Fusarium head blight is a very important disease of small grain cereals with F. graminearum as one of the most important causal agents. It not only causes reduction in yield and quality but from a human and animal healthcare point of view, it produces mycotoxins such as deoxynivalenol (DON) which can accumulate to toxic levels. Little is known about external triggers influencing DON production. 相似文献9.
Ming Zhang Zuping He Lixin Wen Jing Wu Liyun Yuan Yin Lu Chengzhi Guo Li Zhu Sijun Deng Hui Yuan 《Reproductive biology and endocrinology : RB&E》2010,8(1):97
Objective
Very little information is known about the toxic effects of cadmium on somatic cells in mammalian testis. The objective of this study is to explore the toxicity of cadmium on piglet Sertoli cells. 相似文献10.
Background
Microarray technology allows simultaneous measurement of thousands of genes in a single experiment. This is a potentially useful tool for evaluating co-expression of genes and extraction of useful functional and chromosomal structural information about genes. 相似文献11.
Andreas M Boehm Stephanie Pütz Daniela Altenhöfer Albert Sickmann Michael Falk 《BMC bioinformatics》2007,8(1):214
Background
Mass spectrometry based quantification of peptides can be performed using the iTRAQ™ reagent in conjunction with mass spectrometry. This technology yields information about the relative abundance of single peptides. A method for the calculation of reliable quantification information is required in order to obtain biologically relevant data at the protein expression level. 相似文献12.
Background
Different imaging systems (e.g. electrical, magnetic, and ultrasound) rely on a wide variety of physical properties, and the datasets obtained from such systems provide only partial information about the unknown true state. One approach is to choose complementary imaging systems, and to combine the information to achieve a better representation. 相似文献13.
14.
Background
One way in which positional information is established during embryonic development is through the graded distribution of diffusible morphogens. Unfortunately, little is known about how cells interpret different concentrations of morphogen to activate different genes or how thresholds are generated in a morphogen gradient. 相似文献15.
Pedro Carmona-Saez Monica Chagoyen Andres Rodriguez Oswaldo Trelles Jose M Carazo Alberto Pascual-Montano 《BMC bioinformatics》2006,7(1):54-16
Background
Microarray technology is generating huge amounts of data about the expression level of thousands of genes, or even whole genomes, across different experimental conditions. To extract biological knowledge, and to fully understand such datasets, it is essential to include external biological information about genes and gene products to the analysis of expression data. However, most of the current approaches to analyze microarray datasets are mainly focused on the analysis of experimental data, and external biological information is incorporated as a posterior process. 相似文献16.
Background
Despite surveillance efforts, unexpected and serious adverse drug reactions (ADRs) repeatedly occur after marketing. The aim of this article is to analyse ADRs reported by available ADR signal detection approaches and to explore which information about new and unexpected ADRs these approaches have detected. 相似文献17.
Alessia Nicoli Francesco Capodanno Lucia Moscato Ilaria Rondini Maria T Villani Antonella Tuzio Giovanni B La Sala 《Reproductive biology and endocrinology : RB&E》2010,8(1):77
Background
Embryos selection is crucial to maintain high performance in terms of pregnancy rate, reducing the risk of multiple pregnancy during IVF. Pronuclear and nucleolar characteristics have been proposed as an indicator of embryo development and chromosomal complement in humans, providing information about embryo viability. 相似文献18.
Jussi T Koivumäki Topi Korhonen Jouni Takalo Matti Weckström Pasi Tavi 《BMC physiology》2009,9(1):16-20
Background
The cardiomyocyte is a prime example of inherently complex biological system with inter- and cross-connected feedback loops in signalling, forming the basic properties of intracellular homeostasis. Functional properties of cells and tissues have been studied e.g. with powerful tools of genetic engineering, combined with extensive experimentation. While this approach provides accurate information about the physiology at the endpoint, complementary methods, such as mathematical modelling, can provide more detailed information about the processes that have lead to the endpoint phenotype. 相似文献19.
20.
Jan C Biro 《Theoretical biology & medical modelling》2008,5(1):16