Spiders represent widely used model organisms for chelicerate and even arthropod development and evolution. Wnt genes are important and evolutionary conserved factors that control and regulate ...numerous developmental processes. Recent studies comprehensively investigated the complement and expression of spider Wnt genes revealing conserved as well as diverged aspects of their expression and thus (likely) function among different groups of spiders representing Mygalomorphae (tarantulas), and both main groups of Araneae (true spiders) (Haplogynae/Synspermiata and Entelegynae). The allegedly most modern/derived group of entelegyne spiders is represented by the RTA-clade of which no comprehensive data on Wnt expression were available prior to this study. Here, we investigated the embryonic expression of all Wnt genes of the RTA-clade spider Cupiennius salei. We found that most of the Wnt expression patterns are conserved between Cupiennius and other spiders, especially more basally branching species. Surprisingly, most differences in Wnt gene expression are seen in the common model spider Parasteatoda tepidariorum (a non-RTA clade entelegyne species). These results show that data and conclusions drawn from research on one member of a group of animals (or any other organism) cannot necessarily be extrapolated to the group as a whole, and instead highlight the need for comprehensive taxon sampling.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
The Nordic School of Public Health (NHV) was jointly founded in 1953 by the Nordic countries. Until 1979, the school provided ad hoc courses on public health topics, using external teachers drawn ...mainly from the Nordic countries. At the time, the permanent staff of the school was small. In 1979, it began a Master’s degree programme and a few academic positions were established and filled, to support these courses. The programme included four main areas: Epidemiology, Social Medicine, Environmental Health and Health Services Administration. Epidemiology was compulsory in all Master of Public Health (MPH) exams, but there were a handful of optional courses that could be substituted for the other subjects.
This paper tells the story of Epidemiology at NHV from about 1980, up until closure of the school in 2014. The original MPH model ran until 1995. Nursing Science entered NHV from about 1985 and worked mainly with qualitative research that often focused on individual patients. The new methods attracted nurses, midwives, psychologists and other groups that previously had been less represented in NHV. Being quantitative and population oriented, Epidemiology lost its unique position as a mandatory subject for the MPH examination. In addition the ‘New Public Health’ proposed by the World Health Organisation (WHO) that advocated health promotion and the philosophy of salutogenesis became a challenge for the programme in epidemiology: pathogenesis no longer was of primary interest. From 1995, the MPH format changed repeatedly and a DrPH programme was begun. For the last 8 years of its existence, NHV offered a reasonably comprehensive, basic course in Epidemiology.
Throughout the years, epidemiology training and research at NHV were very traditional. In being a relatively free institution in terms of academic choices, NHV should have contributed to the development and innovation of epidemiology in public health. For several reasons, this did not happen.
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BFBNIB, NMLJ, NUK, OILJ, PNG, SAZU, UKNU, UL, UM, UPUK
Aim To estimate changes in resource usage, hospitalization rates, and costs in actual practice in Sweden for schizophrenia patients after switching to long-acting injectable risperidone (Risperdal ...Consta). Methods A retrospective chart review within-subject mirror-image study using actual practice chart review data was used to compare annual hospital bed-days and annual hospital episodes for adults with schizophrenia or schizoaffective disorder before and after switching to Risperdal Consta in the period 1 January 2003 to 30 June 2005. Secondary endpoints included mean length of hospital stay per episode, the cost of hospitalization, and the cost of antipsychotic treatment. The base case analytical approach allocated all hospital episodes overlapping the switch date entirely to pre-switch treatment. In order to investigate the impact of inpatient care ongoing at the time of the switch, the change in bed-days per year was also estimated using an alternative analytical approach inspired by economic modelling. Results One-hundred sixty-four patients were enrolled at nine geographically diverse sites. The switch to Risperdal Consta was associated with a significant reduction in mean annual days in hospital from 39 to 21 days per year (45%), which was linked to a significant reduction in the number of hospitalizations from 0.86 to 0.63 per year (27%). The alternative "modelling-inspired" estimate of the reduction in mean annual days in hospital was also 27%. Conclusion A naturalistic mirror-image study found that switching to long-acting injectable risperidone led to sizeable reductions in inpatient resource use. These results coincide with the findings of other international studies.
Abstract One of the traits of ageism is the categorization of the aged into stereotypes. One such concept is that old people participate less socially and are lonely. If the variation among the aged ...is greater than among younger persons, the stereotype is increasingly misrepresenting the aging population. Such variation is rarely studied in properties assessed by ordinal scale measurements. Is the variation in social participation measured on ordinal scale increasing as a function of age? A measurement of ordinal dispersion was used. The data was from the longitudinal-studied random sample of one thousand one hundred and forty-eight 70-year-old persons born on 1901/1902 who lived in Gothenburg, Sweden in 1971. This sample has been referred to as the H70 sample. Seven aspects of social participation were assessed by interviews. In all but one aspects of social participation there was an increase in dispersion by increasing age. This increase in dispersion by increasing age is not in accordance with a stereotype concept of aging. This result points to an increased risk of ageism by increasing age as the dispersion in social participation increases with age in several aspects.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
Streptococcus pneumoniae is the most significant bacterial cause of community-acquired pneumonia among children under five years worldwide. Updated resistance information of S. pneumoniae among ...children is essential to adjust the recommendations for empirical treatment of community-acquired pneumonia, which will have immense implications for local and global health. This study investigated the prevalence of antibiotic resistance in isolated strains of S. pneumoniae and relationship with antibiotic use and demographic factors of children under five in rural Vietnam in 2007.
In Bavi district, 847 children 6 to 60 months were selected from 847 households. The main child-caregivers in the households were interviewed weekly using structured questionnaires to collect information of daily illness symptoms and drug use for the selected child over a four-week period (from March through June 2007). In the 3rd week, the children were invited for a clinical examination and to collect nasopharyngeal samples for S. pneumoniae identification. Etest and disk diffusion were used to test antibiotic susceptibility.
Of 818 participating children, 258 (32%) had ongoing respiratory infections, 421 (52%) carried S. pneumoniae, and 477 (58%) had used antibiotics within the previous three weeks. Of the 421 isolates, 95% were resistant to at least one antibiotic (401/421). Resistance to co-trimoxazole, tetracycline, phenoxymethylpenicillin, erythromycin and ciprofloxacin was 78%, 75%, 75%, 70% and 28%, respectively. Low resistance was noted for amoxicillin (4%), benzylpenicillin (4%), and cefotaxime (2%). The intermediate resistance to amoxicillin was 32%. Multidrug-resistance was seen in 60%. The most common pattern was co-resistance to co-trimoxazole, tetracycline and erythromycin. The proportion of children carrying resistant bacteria was higher among the children who had used antibiotics in the previous three weeks.
Resistance to commonly used antibiotics and multidrug-resistance of S. pneumoniae in the area is remarkably high. High-dose amoxicillin is the only investigated oral antibiotic that can possibly be used for treatment of community-acquired pneumococcal infections. Strategies to promote appropriate prescribing and dispensing of effective antibiotics should be immediately implemented for the benefit of local and global health.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Ten years ago we showed for the first time that Notch signalling is required in segmentation in spiders, indicating the existence of similar mechanisms in arthropod and vertebrate segmentation. ...However, conflicting results in various arthropod groups hampered our understanding of the ancestral function of Notch in arthropod segmentation. Here we fill a crucial data gap in arthropods and analyse segmentation in a crustacean embryo. We analyse the expression of homologues of the Drosophila and vertebrate segmentation genes and show that members of the Notch signalling pathway are expressed at the same time as the pair-rule genes. Furthermore, inactivation of Notch signalling results in irregular boundaries of the odd-skipped-like expression domains and affects the formation of segments. In severe cases embryos appear unsegmented. We suggest two scenarios for the function of Notch signalling in segmentation. The first scenario agrees with a segmentation clock involving Notch signalling, while the second scenario discusses an alternative mechanism of Notch function which is integrated into a hierarchical segmentation cascade.
•Notch signalling is required for segment formation in Daphnia.•Notch signalling influences segmentation at the level of the pair-rule genes.•Notch inactivation results in irregular boundaries of odl expression domains.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
This broad survey of children’s health and wellbeing in Sweden’s 290 municipalities converts freely available national data to a set of 13 high quality indicators, and makes local surveillance and ...comparisons possible. Combining the indicators, using equal weights, into relevant domains as 5 sub-indices and then again into one summary index provides one index for the great picture, sub-indices for the various domains of child health and separate indicators for the detailed study of the basic components. This creates a simplified tool for decision makers and professionals in their task to monitor children’s health on the local level. Children’s health in the Swedish municipalities is generally good, with a mean Child Health Index of 88 out of 100, ranging from 81 to 93. Children in economically disadvantaged municipalities have, with few exceptions, more health problems and worse preconditions for health. The indicators Socio-economic standard, Tobacco in utero, Smoking households and Teenage abortions explain most of the municipality variations. But the broader range of indicators gives more information and is a better tool to consider strengths and weaknesses for each municipality, and is thus more useful for policy-oriented efforts. The real value of this kind of monitoring lies in a succession of comparable surveys. The generous, free and easily available data are not available in all other countries, but matters such as philosophy and design, indicator definitions and index constructions might be considered in other regions looking for ways to monitor children’s health and wellbeing on local levels.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
BACKGROUND: Good infant growth is important for future health. Assessing growth is common in pediatric care all over the world, both at the population and individual level. There are few studies of ...birth weight and growth studies comparing urban and rural communities in Vietnam. The first aim is to describe and compare the birth weight distributions and physical growth (weight and length) of children during their first year in one rural and one urban area of Hanoi Vietnam. The second aim is to study associations between the anthropometric outcomes and indicators of the economic and educational situations.
METHODS: Totally 1,466 children, born from 1st March, 2009 to June 2010, were followed monthly from birth to 12 months of age in two Health and Demographic Surveillance Sites; one rural and one urban. In all, 14,199 measurements each of weight and length were made. Birth weight was recorded separately. Information about demographic conditions, education, occupation and economic conditions of persons and households was obtained from household surveys. Fractional Polynomial models and standard statistical methods were used for description and analysis.
RESULTS: Urban infants have higher birth weight and gain weight faster than rural infants. The mean birth weight for urban boys and girls were 3,298 grams and 3,203 grams as compared to 3,105 grams and 3,057 grams for rural children. At 90 days, the urban boys were estimated to be 4.1% heavier than rural boys. This difference increased to 7.2% at 360 days. The corresponding difference for girls was 3.4% and 10.5%. The differences for length were comparatively smaller. Both birth weight and growth were statistically significantly and positively associated with economic conditions and mother education.
CONCLUSION: Birth weight was lower and the growth, weight and length, considerably slower in the rural area, for boys as well as for girls. The results support the hypothesis that the rather drastic differences in maternal education and economic conditions lead to poor nutrition for mothers and children in turn causing inferior birth weight and growth.
Background
Observation of characteristic alterations at liver ultrasonography in clinical schistosomiasis mansoni cases has initiated utilization of this examination method in population surveys in ...areas where this disease is endemic.
Purpose
To present results of liver ultrasonography and their relation to epidemiological data of a population in an area endemic for S. mansoni, to estimate the precision of classification of periportal anatomy changes known as periportal fibrosis (PPF), and to evaluate the relevance of ultrasonography in epidemiological studies on S. mansoni.
Material and Methods
A total of 459 inhabitants on Kome Island, Lake Victoria, Tanzania were examined by ultrasound with image documentation by locally trained personnel. A subsample of this population, 116 individuals, was subject to ultrasonography by two examiners independently. Separately, the images were classified for PPF according to the Managil protocol, twice for the subsample.
Results
PPF could be classified for 458 individuals; 64% and 36% were classified as I or II, respectively; none was classified as 0; only one as III. Results were similar for the subsample examined twice. Comparing the two separate classifications of all 232 sets of images of the subsample gave a Kappa (K) value of 0.50. When comparing the classifications of each of the two different examinations of the same individuals of the subsample, K values of 0.29 and 0.34 for the first and second classification, respectively, were obtained.
Conclusion
Ultrasonography does not appear to correlate well with disease stage. Presently, it should not be utilized for staging of schistosoma mansoni-related liver damage in population surveys.
The genes otd/otx, six3, pax6 and engrailed are involved in eye patterning in many animals. Here, we describe the expression pattern of the homologs to otd/otx, six3, pax6 and engrailed in the ...developing Euperipatoides kanangrensis embryos. Special reference is given to the expression in the protocerebral/ocular region. E. kanangrensis otd is expressed in the posterior part of the protocerebral/ocular segment before, during and after eye invagination. E. kanangrensis otd is also expressed segmentally in the developing ventral nerve cord. The E. kanangrensis six3 is located at the extreme anterior part of the protocerebral/ocular segment and not at the location of the developing eyes. Pax6 is expressed in a broad zone at the posterior part of the protocerebral/ocular segment but only weak expression can be seen at the early onset of eye invagination. In late stages of development, the expression in the eye is upregulated. Pax6 is also expressed in the invaginating hypocerebral organs, thus supporting earlier suggestions that the hypocerebral organs in onychophorans are glands. Pax6 transcripts are also present in the developing ventral nerve cord. The segment polarity gene engrailed is expressed at the dorsal side of the developing eye including only a subset of the cells of the invaginating eye vesicle. We show that engrailed is not expressed in the neuroectoderm of the protocerebral/ocular segment as in the other segments. In addition, we discuss other aspect of otd, six3 and pax6 expression that are relevant to our understanding of evolutionary changes in morphology and function in arthropods.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
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