199 research outputs found

    Facilitating an area-based development approach in rural regions in the Western Balkans

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    The present report covers an exercise where a defined development approach (ABD) has been tested in a rural cross border case study area in the Western Balkans. The aim is to draw lessons both for continuing implementation of the ABD in this particular area and more generally initiating it in the Western Balkans. Concretely, the UNDP Area-Based Development (ABD) approach is targeting specific geographical areas characterised by a particular complex development problem (setting it apart from surrounding areas), through an integrated (multi-sector), inclusive (community versus particular groups or individuals), participatory (bottom-up) and flexible (responsive to changes) approach. This approach has been implemented in the pilot case of the Drina valley – Tara Mountain area (Bosnia-Herzegovina, Montenegro, Serbia. As a result of 6 months of interaction among stakeholders, 4 priority development themes were identified in tourism, rural development (with a special focus on agriculture), SME and entrepreneurship and environmental protection. This pilot case allowed drawing relevant lessons for the implementation of ABD to what concerns the area delineation process, the bottom-up process, the top-down accompanying framework and the institutional / legal framework. Lastly, 7 other rural cross border areas within the Western Balkans region have been identified as potential ABD target areas .JRC.J.4-Agriculture and Life Sciences in the Econom

    Characteristics of farming systems in Albania

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    This report is based on information collected from a face-to-face survey of more than 1 000 farmers from three regions of Albania (namely Berat, Elbasan and Lezhë To identify a representative sample of Albanian farming systems, a three-step sample design was used. A group of 11 variables dealing with the socio-economic characteristics of farms was selected to build up the farming system typology. Two typologies are used: one for the whole sample (three regions) and a second one for each region. The differences between the two typologies are considered to be a proxy indicator of different characteristics of farming systems in each region. The farm types identified are (1) poly-culture, mainly for the market; (2) leisure farms; (3) arable crops; (4) fruit trees; (5) self-sufficient; and (6) livestock. The farm typology is slightly different for the regions of Berat and Lezhë. The farm types’ strategies are constructed according to the land, infrastructure facilities and the investment availability of farms. Non-agricultural incomes (remittances, income from the construction, trade, pensions, etc.) appear to provide an important economic support for the farm household. Farming structures in rural areas are characterised by the use of more labour and lower inputs. The farm types that tend to specialise in one activity are not always those that make the best use of labour and land. Farming does not provide enough income to repay the work put in at the official minimum wage level. Non-agricultural work is better paid. Albanian farms provide at least a minimal income that is enough to keep the household members above the threshold of extreme poverty. The farm types that base their incomes on agricultural activities are poorer than those that base their income on non-agricultural activities. Income structures and the low incomes generated by work in agriculture suggests that rural migration towards urban areas and abroad is a phenomenon that will persist into the future.JRC.J.4-Agriculture and Life Sciences in the Econom

    Genes required for survival in microgravity revealed by genome-wide yeast deletion collections cultured during spaceflight

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    Spaceflight is a unique environment with profound effects on biological systems including tissue redistribution and musculoskeletal stresses. However, the more subtle biological effects of spaceflight on cells and organisms are difficult to measure in a systematic, unbiased manner. Here we test the utility of the molecularly barcoded yeast deletion collection to provide a quantitative assessment of the effects of microgravity on a model organism. We developed robust hardware to screen, in parallel, the complete collection of ~4800 homozygous and ~5900 heterozygous (including ~1100 single-copy deletions of essential genes) yeast deletion strains, each carrying unique DNA that acts as strain identifiers. We compared strain fitness for the homozygous and heterozygous yeast deletion collections grown in spaceflight and ground, as well as plus and minus hyperosmolar sodium chloride, providing a second additive stressor. The genome-wide sensitivity profiles obtained from these treatments were then queried for their similarity to a compendium of drugs whose effects on the yeast collection have been previously reported. We found that the effects of spaceflight have high concordance with the effects of DNA-damaging agents and changes in redox state, suggesting mechanisms by which spaceflight may negatively affect cell fitness

    The Role of T cell PPAR γ in mice with experimental inflammatory bowel disease

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    <p>Abstract</p> <p>Background</p> <p>Peroxisome proliferator-activated receptor γ (PPAR γ) is a nuclear receptor whose activation has been shown to modulate macrophage and T cell-mediated inflammation. The objective of this study was to investigate the mechanisms by which the deletion of PPAR γ in T cells modulates immune cell distribution and colonic gene expression and the severity of experimental IBD.</p> <p>Methods</p> <p>PPAR γ flfl; CD4 Cre<sup>+ </sup>(CD4cre) or Cre- (WT) mice were challenged with 2.5% dextran sodium sulfate in their drinking water for 0, 2, or 7 days. Mice were scored on disease severity both clinically and histopathologically. Flow cytometry was used to assess lymphocyte and macrophage populations in the blood, spleen, and mesenteric lymph nodes (MLN). Global gene expression in colonic mucosa was profiled using Affymetrix microarrays.</p> <p>Results</p> <p>The deficiency of PPAR γ in T cells accelerated the onset of disease and body weight loss. Examination of colon histopathology revealed significantly greater epithelial erosion, leukocyte infiltration, and mucosal thickening in the CD4cre mice on day 7. CD4cre mice had more CD8<sup>+ </sup>T cells than WT mice and fewer CD4<sup>+</sup>FoxP3<sup>+ </sup>regulatory T cells (Treg) and IL10<sup>+</sup>CD4<sup>+ </sup>T cells in blood and MLN, respectively. Transcriptomic profiling revealed around 3000 genes being transcriptionally altered as a result of DSS challenge in CD4cre mice. These included up-regulated mRNA expression of adhesion molecules, proinflammatory cytokines interleukin-6 (IL-6) and IL-1β, and suppressor of cytokine signaling 3 (SOCS-3) on day 7. Gene set enrichment analysis (GSEA) showed that the ribosome and Krebs cycle pathways were downregulated while the apoptosis pathway was upregulated in colons of mice lacking PPAR γ in T cells.</p> <p>Conclusions</p> <p>The expression of PPAR γ in T cells is involved in preventing gut inflammation by regulating colonic expression of adhesion molecules and inflammatory mediators at later stages of disease while favoring the recruitment of Treg to the mucosal inductive sites.</p

    Type II NKT Cells Stimulate Diet-Induced Obesity by Mediating Adipose Tissue Inflammation, Steatohepatitis and Insulin Resistance

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    The progression of obesity is accompanied by a chronic inflammatory process that involves both innate and acquired immunity. Natural killer T (NKT) cells recognize lipid antigens and are also distributed in adipose tissue. To examine the involvement of NKT cells in the development of obesity, C57BL/6 mice (wild type; WT), and two NKT-cell-deficient strains, Jα18−/− mice that lack the type I subset and CD1d−/− mice that lack both the type I and II subsets, were fed a high fat diet (HFD). CD1d−/− mice gained the least body weight with the least weight in perigonadal and brown adipose tissue as well as in the liver, compared to WT or Jα18−/− mice fed an HFD. Histologically, CD1d−/− mice had significantly smaller adipocytes and developed significantly milder hepatosteatosis than WT or Jα18−/− mice. The number of NK1.1+TCRβ+ cells in adipose tissue increased when WT mice were fed an HFD and were mostly invariant Vα14Jα18-negative. CD11b+ macrophages (Mφ) were another major subset of cells in adipose tissue infiltrates, and they were divided into F4/80high and F4/80low cells. The F4/80low-Mφ subset in adipose tissue was increased in CD1d−/− mice, and this population likely played an anti-inflammatory role. Glucose intolerance and insulin resistance in CD1d−/− mice were not aggravated as in WT or Jα18−/− mice fed an HFD, likely due to a lower grade of inflammation and adiposity. Collectively, our findings provide evidence that type II NKT cells initiate inflammation in the liver and adipose tissue and exacerbate the course of obesity that leads to insulin resistance

    Subthreshold psychosis in 22q11.2 deletion syndrome: multisite naturalistic study

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    Nearly one-third of individuals with 22q11.2 deletion syndrome (22q11.2DS) develop a psychotic disorder during life, most of them by early adulthood. Importantly, a full-blown psychotic episode is usually preceded by subthreshold symptoms. In the current study, 760 participants (aged 6-55 years) with a confirmed hemizygous 22q11.2 microdeletion have been recruited through 10 medical sites worldwide, as part of an international research consortium. Of them, 692 were nonpsychotic and with complete measurement data. Subthreshold psychotic symptoms were assessed using the Structured Interview for Prodromal Syndromes (SIPS). Nearly one-third of participants met criteria for positive subthreshold psychotic symptoms (32.8%), less than 1% qualified for acute positive subthreshold symptoms, and almost a quarter met criteria for negative/disorganized subthreshold symptoms (21.7%). Adolescents and young adults (13-25 years) showed the highest rates of subthreshold psychotic symptoms. Additionally, higher rates of anxiety disorders and attention deficit/hyperactivity disorder (ADHD) were found among the study participants with subthreshold psychotic symptoms compared to those without. Full-scale IQ, verbal IQ, and global functioning (GAF) scores were negatively associated with participants' subthreshold psychotic symptoms. This study represents the most comprehensive analysis reported to date on subthreshold psychosis in 22q11.2DS. Novel findings include age-related changes in subthreshold psychotic symptoms and evidence that cognitive deficits are associated with subthreshold psychosis in this population. Future studies should longitudinally follow these symptoms to detect whether and how early identification and treatment of these manifestations can improve long-term outcomes in those that eventually develop a psychotic disorder
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