863 research outputs found
Characterisation of feline renal cortical fibroblast cultures and their transcriptional response to transforming growth factor beta 1
Chronic kidney disease (CKD) is common in geriatric cats, and the most prevalent pathology is chronic tubulointerstitial inflammation and fibrosis. The cell type predominantly responsible for the production of extra-cellular matrix in renal fibrosis is the myofibroblast, and fibroblast to myofibroblast differentiation is probably a crucial event. The cytokine TGF-β1 is reportedly the most important regulator of myofibroblastic differentiation in other species. The aim of this study was to isolate and characterise renal fibroblasts from cadaverous kidney tissue of cats with and without CKD, and to investigate the transcriptional response to TGF-β1
Search for the Proton Decay Mode proton to neutrino K+ in Soudan 2
We have searched for the proton decay mode proton to neutrino K+ using the
one-kiloton Soudan 2 high resolution calorimeter. Contained events obtained
from a 3.56 kiloton-year fiducial exposure through June 1997 are examined for
occurrence of a visible K+ track which decays at rest into mu+ nu or pi+ pi0.
We found one candidate event consistent with background, yielding a limit,
tau/B > 4.3 10^{31} years at 90% CL with no background subtraction.Comment: 13 pages, Latex, 3 tables and 3 figures, Accepted by Physics Letters
Foodways in transition: food plants, diet and local perceptions of change in a Costa Rican Ngäbe community
Background
Indigenous populations are undergoing rapid ethnobiological, nutritional and socioeconomic transitions while being increasingly integrated into modernizing societies. To better understand the dynamics of these transitions, this article aims to characterize the cultural domain of food plants and analyze its relation with current day diets, and the local perceptions of changes given amongst the Ngäbe people of Southern Conte-Burica, Costa Rica, as production of food plants by its residents is hypothesized to be drastically in recession with an decreased local production in the area and new conservation and development paradigms being implemented.
Methods
Extensive freelisting, interviews and workshops were used to collect the data from 72 participants on their knowledge of food plants, their current dietary practices and their perceptions of change in local foodways, while cultural domain analysis, descriptive statistical analyses and development of fundamental explanatory themes were employed to analyze the data.
Results
Results show a food plants domain composed of 140 species, of which 85 % grow in the area, with a medium level of cultural consensus, and some age-based variation. Although many plants still grow in the area, in many key species a decrease on local production–even abandonment–was found, with much reduced cultivation areas. Yet, the domain appears to be largely theoretical, with little evidence of use; and the diet today is predominantly dependent on foods bought from the store (more than 50 % of basic ingredients), many of which were not salient or not even recognized as ‘food plants’ in freelists exercises. While changes in the importance of food plants were largely deemed a result of changes in cultural preferences for store bought processed food stuffs and changing values associated with farming and being food self-sufficient, Ngäbe were also aware of how changing household livelihood activities, and the subsequent loss of knowledge and use of food plants, were in fact being driven by changes in social and political policies, despite increases in forest cover and biodiversity.
Conclusions
Ngäbe foodways are changing in different and somewhat disconnected ways: knowledge of food plants is varied, reflecting most relevant changes in dietary practices such as lower cultivation areas and greater dependence on food from stores by all families. We attribute dietary shifts to socioeconomic and political changes in recent decades, in particular to a reduction of local production of food, new economic structures and agents related to the State and globalization
From prison to detention: the carceral trajectories of foreign-national prisoners in the United Kingdom
The United Kingdom has taken an increasingly punitive stance towards ‘foreign criminals’ using law and policy to pave the way for their expulsion from the country. Imprisonment, then, becomes the first stage in a complex process intertwining identity, belonging and punishment. We draw here on research data from two projects to understand the carceral trajectories of foreign-national offenders in the UK. We consider the lived experiences of male foreign-nationals in two sites: prison and immigration detention. The narratives presented show how imprisonment and detention coalesce within the deportation regime as a ‘double punishment’, one that is highly racialised and gendered. We argue that the UK’s increasingly punitive response to foreign-national offenders challenges the traditional purposes of punishment by sidestepping prisoners’ rehabilitative efforts and denying ‘second chances’ while enacting permanent exclusion through bans on re-entry
Circulating adrenomedullin estimates survival and reversibility of organ failure in sepsis: the prospective observational multinational Adrenomedullin and Outcome in Sepsis and Septic Shock-1 (AdrenOSS-1) study
Background: Adrenomedullin (ADM) regulates vascular tone and endothelial permeability during sepsis. Levels of circulating biologically active ADM (bio-ADM) show an inverse relationship with blood pressure and a direct relationship with vasopressor requirement. In the present prospective observational multinational Adrenomedullin and Outcome in Sepsis and Septic Shock 1 (, AdrenOSS-1) study, we assessed relationships between circulating bio-ADM during the initial intensive care unit (ICU) stay and short-term outcome in order to eventually design a biomarker-guided randomized controlled trial. Methods: AdrenOSS-1 was a prospective observational multinational study. The primary outcome was 28-day mortality. Secondary outcomes included organ failure as defined by Sequential Organ Failure Assessment (SOFA) score, organ support with focus on vasopressor/inotropic use, and need for renal replacement therapy. AdrenOSS-1 included 583 patients admitted to the ICU with sepsis or septic shock. Results: Circulating bio-ADM levels were measured upon admission and at day 2. Median bio-ADM concentration upon admission was 80.5 pg/ml [IQR 41.5-148.1 pg/ml]. Initial SOFA score was 7 [IQR 5-10], and 28-day mortality was 22%. We found marked associations between bio-ADM upon admission and 28-day mortality (unadjusted standardized HR 2.3 [CI 1.9-2.9]; adjusted HR 1.6 [CI 1.1-2.5]) and between bio-ADM levels and SOFA score (p < 0.0001). Need of vasopressor/inotrope, renal replacement therapy, and positive fluid balance were more prevalent in patients with a bio-ADM > 70 pg/ml upon admission than in those with bio-ADM ≤ 70 pg/ml. In patients with bio-ADM > 70 pg/ml upon admission, decrease in bio-ADM below 70 pg/ml at day 2 was associated with recovery of organ function at day 7 and better 28-day outcome (9.5% mortality). By contrast, persistently elevated bio-ADM at day 2 was associated with prolonged organ dysfunction and high 28-day mortality (38.1% mortality, HR 4.9, 95% CI 2.5-9.8). Conclusions: AdrenOSS-1 shows that early levels and rapid changes in bio-ADM estimate short-term outcome in sepsis and septic shock. These data are the backbone of the design of the biomarker-guided AdrenOSS-2 trial. Trial registration: ClinicalTrials.gov, NCT02393781. Registered on March 19, 2015
The JNCC terrestrial biodiversity surveillance schemes: an assessment of coverage
Biodiversity information is needed to provide a sound evidence base for decision-making, including operational needs, statutory reporting requirements and strategic needs. In this study we sought to assess aspects of coverage so as to identify gaps in taxonomic, thematic (habitat) and spatial coverage which might need to be addressed in future
IL-17 Expression in the Time Course of Acute Anti-Thy1 Glomerulonephritis
Background Interleukin-17 (IL-17) is a new pro-inflammatory cytokine involved
in immune response and inflammatory disease. The main source of IL-17 is a
subset of CD4+ T-helper cells, but is also secreted by non-immune cells. The
present study analyzes expression of IL-17 in the time course of acute anti-
thy1 glomerulonephritis and the role of IL-17 as a potential link between
inflammation and fibrosis. Methods Anti-thy1 glomerulonephritis was induced
into male Wistar rats by OX-7 antibody injection. After that, samples were
taken on days 1, 5, 10 (matrix expansion phase), 15 and 20 (resolution phase).
PBS-injected animals served as controls. Proteinuria and histological matrixes
score served as the main markers for disease severity. In in vitro
experiments, NRK-52E cells were used. For cytokine expressions, mRNA and
protein levels were analyzed by utilizing RT-PCR, in situ hybridization and
immunofluorescence. Results Highest IL-17 mRNA-expression (6.50-fold vs. con;
p<0.05) was found on day 5 after induction of anti-thy1 glomerulonephritis
along the maximum levels of proteinuria (113 ± 13 mg/d; p<0.001), histological
glomerular-matrix accumulation (82%; p<0.001) and TGF-β1 (2.2-fold; p<0.05),
IL-6 mRNA expression (36-fold; p<0.05). IL-17 protein expression co-localized
with the endothelial cell marker PECAM in immunofluorescence. In NRK-52E
cells, co-administration of TGF-β1 and IL-6 synergistically up-regulated IL-17
mRNA 4986-fold (p<0.001). Conclusions The pro-inflammatory cytokine IL-17 is
up-regulated in endothelial cells during the time course of acute anti-thy1
glomerulonephritis. In vitro, NRK-52E cells secrete IL-17 under pro-fibrotic
and pro-inflammatory conditions
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