29 research outputs found
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The world economic crisis as a changed circumstance
In September 2008, the bankruptcy of Lehman Brothers sent financial markets in the United States into a spin. Credit markets froze as banks began to mistrust counterparties, not knowing the extent of toxic assets in loan portfolios that could lead to another major bank collapse. The crisis quickly spread around the world. Governments were urged to take drastic measures. Experts discussed the possible nationalization of portions of the U.S. banking industry and other sectors. Other countries also considered measures to save key industries
Recommended from our members
The world economic crisis as a changed circumstance
In September 2008, the bankruptcy of Lehman Brothers sent financial markets in the United States into a spin. Credit markets froze as banks began to mistrust counterparties, not knowing the extent of toxic assets in loan portfolios that could lead to another major bank collapse. The crisis quickly spread around the world. Governments were urged to take drastic measures. Experts discussed the possible nationalization of portions of the U.S. banking industry and other sectors. Other countries also considered measures to save key industries
Recommended from our members
世界经济危机--变迁的情势
2008年9月,雷曼兄弟的破产使美国金融市场陷入混乱。由于贷款组合中不良资产比重的不确定--这有可能导致另一个大银行倒闭,银行业间开始相互失去信任,信贷市场也因此遭到冻结。危机迅速在世界范围内蔓延开来。各种政府纷纷在第一时间采取应对措施。专家们探讨了美国银行业及其其他部门部分国有化的可行性。其他国家同样也考虑了救援关键行业的相关措施
International Courts & Judicial Affairs
This chapter reviews some of the most significant developments made by international courts and tribunals in 2020.
I. International Court of Justice As of the time of writing (November 2020), this year, the International Court of Justice (Court) has rendered one order on provisional measures, two judgments on appeals from decisions of the International Civil Aviation Organization (ICAO) Council, and two orders relating to expert evidence
Accelarated immune ageing is associated with COVID-19 disease severity
Background
The striking increase in COVID-19 severity in older adults provides a clear example of immunesenescence, the age-related remodelling of the immune system. To better characterise the association between convalescent immunesenescence and acute disease severity, we determined the immune phenotype of COVID-19 survivors and non-infected controls.
Results
We performed detailed immune phenotyping of peripheral blood mononuclear cells isolated from 103 COVID-19 survivors 3–5 months post recovery who were classified as having had severe (n = 56; age 53.12 ± 11.30 years), moderate (n = 32; age 52.28 ± 11.43 years) or mild (n = 15; age 49.67 ± 7.30 years) disease and compared with age and sex-matched healthy adults (n = 59; age 50.49 ± 10.68 years). We assessed a broad range of immune cell phenotypes to generate a composite score, IMM-AGE, to determine the degree of immune senescence. We found increased immunesenescence features in severe COVID-19 survivors compared to controls including: a reduced frequency and number of naïve CD4 and CD8 T cells (p < 0.0001); increased frequency of EMRA CD4 (p < 0.003) and CD8 T cells (p < 0.001); a higher frequency (p < 0.0001) and absolute numbers (p < 0.001) of CD28−ve CD57+ve senescent CD4 and CD8 T cells; higher frequency (p < 0.003) and absolute numbers (p < 0.02) of PD-1 expressing exhausted CD8 T cells; a two-fold increase in Th17 polarisation (p < 0.0001); higher frequency of memory B cells (p < 0.001) and increased frequency (p < 0.0001) and numbers (p < 0.001) of CD57+ve senescent NK cells. As a result, the IMM-AGE score was significantly higher in severe COVID-19 survivors than in controls (p < 0.001). Few differences were seen for those with moderate disease and none for mild disease. Regression analysis revealed the only pre-existing variable influencing the IMM-AGE score was South Asian ethnicity (
= 0.174, p = 0.043), with a major influence being disease severity (
= 0.188, p = 0.01).
Conclusions
Our analyses reveal a state of enhanced immune ageing in survivors of severe COVID-19 and suggest this could be related to SARS-Cov-2 infection. Our data support the rationale for trials of anti-immune ageing interventions for improving clinical outcomes in these patients with severe disease