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Trump starts trade war with allies, Europe to respond 'within hours'

Canada has promised tariffs on US exports of steel, aluminum and other goods, to match the USA tariffs "dollar for dollar". Britain exports around ?360m in steel to the United States every year, 10% of the industry's total exports.
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     For 18 long months, Anna was left feeling 'upset and embarrassed' about her problem.
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    PARP1/PAR depletion improved the cardiac structure and LV function in chagasic mice

    ROS can signal fibrosis, and chronic hypertrophy is a key cause for LV dysfunction. We, therefore, examined if control of PARP1-dependent mitochondrial impairment and oxidative stress arrested cardiac remodeling and LV dysfunction in Chagas disease. Echocardiography imaging showed the LV mass and inter-ventricular septum thickness (IVS) were increased by 29–58%, while LV posterior wall (LVPW) was thinned by 31–47% in chagasic (vs. control) WT mice (Fig 6A–6E, all, p<0.05, S2 Table). Histological evaluation of tissue sections by Masson's Trichrome staining showed the myocardial collagen content was significantly increased in chagasic myocardium (score: 4.0 ± 0.4 vs. 0.3 ± 0.04, WT.Tc vs. WT, Fig 6F–6H, p<0.001). An increase in cardiac fibrosis in WT.Tc (vs. control) mice was also evidenced by 6-fold, 8-fold, and 1.5-fold increase in mRNA levels for COL1A1, COL3A1, and COL5A2, respectively (Fig 6I–6K, all, p<0.05). The chronically infected PARP1+/- and PARP1-/- mice exhibited the ability to maintain IVS and LVPW thickness at normal levels, >50% decline in collagen deposition, and 50–90% decline in the mRNA levels of collagen isoforms when compared to that noted in WT.Tc mice (Fig 6A–6K, all, p<0.05).