Articles: function.
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New markers of COPD and emphysema disease activity are urgently required since current measures of disease severity do not reflect the total disease burden nor predict disease progression. A recently described in vivo marker of neutrophil elastase activity (Aα-Val360) may be an effective marker of COPD and emphysema disease activity, and the current study explores its use in patients with α1-antitrypsin deficiency (AATD) across the disease severity spectrum with particular interest in whether it can be used as an early predictor of the need for intervention. ⋯ In cross-sectional studies, Aα-Val360 reflects disease severity in AATD and may be a useful marker of disease activity in patients with early disease in whom therapeutic intervention may be indicated.
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Critical care medicine · Aug 2015
Dichotomous "Good Outcome" Indicates Mobility More Than Cognitive or Social Quality of Life.
Worthwhile interventions for intracerebral hemorrhage or subarachnoid hemorrhage generally hinge on whether they improve the odds of good outcome. Although good outcome is correlated with mobility, correlations with other domains of health-related quality of life, such as cognitive function and social functioning, are not well described. We tested the hypothesis that good outcome is more closely associated with mobility than other domains. ⋯ Health-related quality of life assessments reliably distinguished between good and poor outcomes as determined by the modified Rankin Scale. Good outcome indicated health-related quality of life about 1.5 SD below the U.S. population mean. Associations were weaker for cognitive function and social function than mobility.
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Journal of anesthesia · Aug 2015
Dietary supplementation with sodium nitrite can exert neuroprotective effects on global cerebral ischemia/reperfusion in mice.
Nitrite-derived NO protects against middle cerebral artery occlusion in mice. We developed a new mouse model of global cerebral ischemia and reperfusion (GCI/R) involving reversible occlusion of the major vessels from the aortic arch supplying the brain, and investigated neuroprotection with dietary sodium nitrite supplementation against GCI/R injury. ⋯ Sodium nitrite supplementation attenuated mortality and neurological impairment after 3-min GCI in mice; an effect likely mediated via vascular mechanisms involving NO.