909 resultados para sense organ
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jahrg. 23, bd. 89 (1902)
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v.15(1897)
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Executive Summary. Both the Commission’s proposal for a ‘Competitiveness and Convergence Instrument’ and the ‘contractual arrangement’ presented by President Van Rompuy share a common concept: associating EU money with national structural reforms under a binding arrangement. The targeted ‘structural reforms’ are the labour market reforms and product and services market reforms in eurozone ‘peripheral’ countries facing the most severe external imbalances. Their implementation would speed up and facilitate the ‘internal devaluation’ process of these countries. In the worst case scenario, failure to adopt the necessary reforms and to adjust wages and prices downwards may lead the most vulnerable countries to leave the eurozone under social and political pressure. Contracts seek to reduce this risk by increasing compliance with the country-specific recommendations for structural reforms issued by the EU institutions within the European Semester, and in particular with the Macroeconomic Imbalance Procedure (MIP). As for the financial support, it follows two different, albeit overlapping rationales. First, the perspective of obtaining EU funding would incentivize the governments of vulnerable countries to adopt reforms that would bear a high political and social cost in the short term. That is, without some form of incentive, it is unlikely that the necessary reforms would be undertaken and this could have significant negative consequences for the EMU as a whole. The second rationale amounts to outright solidarity: EU support is needed to cushion the inevitable socio-economic costs implied not only by the structural reform, but also by the internal devaluation taking place. To make sense of contractual arrangements, some points should be considered in future discussions: 1. Contracts on a voluntary basis only: Contracts cannot be mandatory unlike initially suggested in the Van Rompuy report. This stems not only from the inherent definition of a ‘contract’ – where mutual consent is key – but also from the non-binding nature of the preventive arm of the MIP. Making the country-specific recommendations issued by the EU institutions systematically binding would imply transfers of sovereignty from the national to the EU level that go well beyond the present discussion. Instead, contracts would introduce the possibility of making the preventive arm binding for some countries where corrections are most needed and urgent for the EMU as a whole.
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The democratic functioning of the EU is frequently called into question. Increasingly, the focus of this criticism is the perceived lack of legitimacy in eurozone policymaking. The eurozone has gained a firmer grip on national policymaking in recent years, but has not adapted its democratic structure to reflect this. To tackle this problem, European and national policymakers have committed to improving the eurozone’s legitimacy and accountability. One of the rare concrete proposals by policymakers is the institution of parliamentary control that deals specifically with eurozone matters. This Egmont Paper examines whether it would be beneficial to have eurozone level democracy. This is defined as parliamentary scrutiny of, by and for the eurozone. It would deal with issues that solely concern the eurozone, and decisions would be made solely by parliamentarians from the eurozone.
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On 3 June, the French government convened an international meeting in Paris, gathering 28 high-level delegations from all around the world, from Norway to Japan, in order to discuss the state of play and future prospects of the enduring Israel-Palestine conflict. The first ministerial meeting of the “Initiative for the Peace in the Middle East”, as it was labelled by the Quai d’Orsay, provided an important political signal, and a potential diplomatic format, to help revive the long-stalled peace process. Yet, its concrete deliverables remain beset by considerable uncertainty.
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Antigenic variation of the intestinal protozoan parasite Giardia lamblia is caused by an exchange of the parasite's variant surface protein (VSP) coat. Many investigations on antigenic variation were performed with G. lamblia clone GS/M-83-H7 which produces surface antigen VSP H7. To generate novel information on giardial vsp gene transcription, vsp RNA levels were assessed by quantitative reverse transcription-(RT)-PCR in both axenic VSP H7-type trophozoites and subvariants obtained after negative selection of GS/M-83-H7 trophozoites by treatment with a cytotoxic, VSP H7-specific monoclonal antibody. Our investigation was not restricted to the assessment of the sense vsp transcript levels but also included an approach aimed at the detection of complementary antisense vsp transcripts within the two trophozoite populations. We found that sense vsp H7 RNA predominated in VSP H7-type trophozoites while sense RNA from only one (vsp IVg) of 8 subvariant vsp genes totally analysed predominated in subvariant-type trophozoites. Interestingly, the two trophozoite populations exhibited a similar relative distribution regarding the vsp H7 and vsp IVg antisense RNA molecules. An analogous sense versus antisense RNA pattern was also observed when the transcripts of gene cwp 1 (encoding cyst wall protein 1) were investigated. Here, both types of RNA molecules only appeared after cwp 1 had been induced through in vitro encystation of the parasite. These findings for the first time demonstrated that giardial antisense RNA production did not occur in a constitutive manner but was directly linked to complementary sense RNA production after activation of the respective gene systems.
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Introduction: Mechanical stress is often associated to interverterbal disc (IVD) degeneration and the effect of mechanical loading on IVD has been studied and reviewed.1,2 Previously, expression of heat shock proteins, HSP70 and HSP27 has been found in pathological discs.3 However, there is no direct evidence on whether IVD cells respond to the mechanical loading by expression of HSPs. The objective of this study is to investigate the stress response of IVD cells during compressive loading in an organ culture. Materials and Methods: Fresh adult bovine caudal discs were cultured with compressive loading applied at physiological range. Effect of loading type (static and dynamic) and repeated loading (2 hours per day for 2 days) were studied. Nucleus pulposus (NP) and annulus fibrosus (AF) of the IVD were retrieved at different time points: right after loading and right after resting. Positive control discs were heat shocked (43°C). Cell activity was assessed and expression of stress response genes (HSP70 and HSF1) and matrix remodeling genes (ACAN, COL2, COL1, ADAMTS4, MMP3 and MMP13) were studied. Results: Cell activity was maintained in all groups. Both NP and AF expressed high level of HSP70 in heat shock groups, confirming their expression in response to stress. In NP, expression of HSP70 was up-regulated after static loading and dynamic loading with higher fold change was observed after static loading. During repeated loading, HSP70 appeared to be upregulated right after loading and decreased after resting. Such trend was not observed in AF and HSF1 levels. Expressions of matrix remodeling genes did not change significantly with loading except ADAMTS4 decreased in AF during static loading. Conclusion: This study demonstrated that NP cells upregulate expression of HSP70 in response to loading induced stress without changing cell activity and matrix remodeling significantly. Acknowledgments: This project was funded by AO Spine (AOSPN) (grant number: SRN_2011_14) and a fellowship exchange award by AO Spine Scientific Research Network (SRN).
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BACKGROUND Nocardiosis is a rare, life-threatening opportunistic infection, affecting 0.04% to 3.5% of patients after solid organ transplantation (SOT). The aim of this study was to identify risk factors for Nocardia infection after SOT and to describe the presentation of nocardiosis in these patients. METHODS We performed a retrospective case-control study of adult patients diagnosed with nocardiosis after SOT between 2000 and 2014 in 36 European (France, Belgium, Switzerland, Netherlands, Spain) centers. Two control subjects per case were matched by institution, transplant date and transplanted organ. A multivariable analysis was performed using conditional logistic regression to identify risk factors for nocardiosis. RESULTS One hundred and seventeen cases of nocardiosis and 234 control patients were included. Nocardiosis occurred at a median of 17.5 [range 2-244] months after transplantation. In multivariable analysis, high calcineurin inhibitor trough levels in the month before diagnosis (OR=6.11 [2.58-14.51]), use of tacrolimus (OR=2.65 [1.17-6.00]) and corticosteroid dose (OR=1.12 [1.03-1.22]) at the time of diagnosis, patient age (OR=1.04 [1.02-1.07]) and length of stay in intensive care unit after SOT (OR=1.04 [1.00-1.09]) were independently associated with development of nocardiosis; low-dose cotrimoxazole prophylaxis was not found to prevent nocardiosis. Nocardia farcinica was more frequently associated with brain, skin and subcutaneous tissue infections than were other Nocardia species. Among the 30 cases with central nervous system nocardiosis, 13 (43.3%) had no neurological symptoms. CONCLUSIONS We identified five risk factors for nocardiosis after SOT. Low-dose cotrimoxazole was not found to prevent Nocardia infection. These findings may help improve management of transplant recipients.