100 resultados para OMEGA LIMITS

em QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast


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OBJECTIVE: To determine the effect of dietary supplementation with omega-3 fish oils with or without copper on disease activity in systemic lupus erythematosus (SLE). Fish oil supplementation has a beneficial effect on murine models of SLE, while exogenous copper can decrease the formation of lupus erythematosus cells in rats with a hydralazine-induced collagen disease. METHODS: A double blind, double placebo controlled factorial trial was performed on 52 patients with SLE. Patients were randomly assigned to 4 treatment groups. Physiological doses of omega-3 fish oils and copper readily obtainable by dietary means were used. One group received 3 g MaxEPA and 3 mg copper, another 3 g MaxEPA and placebo copper, another 3 mg copper and placebo fish oil, and the fourth group received both placebo capsules. Serial measurements of disease activity using the revised Systemic Lupus Activity Measure (SLAM-R) and peripheral blood samples for routine hematological, biochemical, and immunological indices were taken at baseline, 6, 12, and 24 weeks. RESULTS: There was a significant decline in SLAM-R score from 6.12 to 4.69 (p <0.05) in those subjects taking fish oil compared to placebo. No significant effect on SLAM-R was observed in subjects taking copper. Laboratory variables were unaffected by either intervention. CONCLUSION: In the management of SLE, dietary supplementation with fish oil may be beneficial in modifying symptomatic disease activity.

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The view that states which claim sovereign status must comply with the responsibility to protect their own citizens is gaining ground in international politics. When a state is unable or unwilling to meet this responsibility, the international community is justified in intervening militarily to end widespread human rights violations. This article argues that a diffuse responsibility to protect, as currently conceived, may have important negative consequences. By using the ongoing tragedy of Darfur as an example, the article argues that the responsibility to protect is reactive and focused on the short term, contributes to the outbreak of violence and perversely provides repressed groups with a further incentive to continue their armed struggle after war breaks out. The tragedy of Darfur shows that effective protection requires case-specific policies aimed at prevention, democratization and economic and political development.

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High-precision correlation of palaeoclimatic and palaeoenvironmental records is crucial for testing hypotheses of synchronous change. Although radiocarbon is the traditional method for dating late Quaternary sedimentary sequences, particularly during the last glacial–interglacial transition (LGIT; 15–9?ka), there are inherent problems with the method, particularly during periods of climate change which are often accompanied by major perturbations in atmospheric radiocarbon content. An alternative method is the use of tephras that act as time-parallel marker horizons. Within Europe, numerous volcanic centres are known to have erupted during the LGIT, providing considerable potential for high-precision correlation independent of past radiocarbon fluctuations. Here we report the first identification of the Vedde Ash and Askja Tephra in Ireland, significantly extending the known provenance of these events. We have also identified two new horizons (the Roddans Port Tephras A and B) and tentatively recognise an additional horizon from Vallensgård Mose (Denmark) that provide crucial additional chronological control for the LGIT. Two phases of the Laacher See Tephra (LST) are reported, the lower Laacher See Tephra (LLST) and probably the C2 phase of the Middle Laacher See Tephra (MLST-C2) indicating a more northeasterly distribution of this fan than reported previously.

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The British government has a fraught relationship with former combatants in Northern Ireland. It simultaneously benefits from former combatants’ peace-building efforts, whilst denying them statutory recognition and funding. Drawing on interviews and focus groups with politically motivated former loyalist combatants and statutory representatives in Belfast, this paper explores the complex and sometimes contradictory relationship between them. It argues that that a lack of legitimacy is the biggest obstacle to good working relationships, and that positive engagement may be crucial in order to promote the implementation of peace in the most difficult to reach and volatile constituencies in Northern Ireland.