Articles: function.
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We sought to investigate the degree to which cognitive skills explain associations between health literacy and asthma-related medication use among older adults with asthma. ⋯ Among older patients with asthma, interventions to promote proper medication use should simplify tasks and patient roles to overcome cognitive load and suboptimal performance in self-care.
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The thalamus is thought to be crucially involved in the anesthetic state. Here, we investigated the effect of the inhaled anesthetic xenon on stimulus-evoked thalamocortical network activity and on excitability of thalamocortical neurons. Because hyperpolarization-activated, cyclic nucleotide-gated cation (HCN) channels are key regulators of neuronal excitability in the thalamus, the effect of xenon on HCN channels was examined. ⋯ Here, we clearly showed that xenon impairs HCN2 channel function, and this impairment is dependent on intracellular cyclic adenosine monophosphate levels. We provide evidence that this effect reduces thalamocortical signal propagation and probably contributes to the hypnotic properties of xenon.
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Anasthesiol Intensivmed Notfallmed Schmerzther · May 2015
[Perioperative heart failure - Anesthetic management and monitoring].
Due to the demographic and medical development, the number of patients with heart failure needing anaesthesiological care will continue to grow in the upcoming years. For the optimal care of these patients close coordination between the surgically treating, the cardiology and the anesthesiological department is important. Cardiac function and structural characters, such as cardiac valve defects should be known preoperatively. ⋯ Especially in high-risk patients goal directed hemodynamic therapy is useful. For this, in addition to the established monitoring procedures, less invasive monitoring devices areincreasingly used. During an acutehaemodynamic instability, thetransoesophageal echocardiography is gaining importance due to its wide diagnostic evaluation.
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N-methyl-D-aspartate receptor (NMDAR) antagonists have been shown to reduce mechanical hypersensitivity in animal models of inflammatory pain. However, their clinical use is associated with significant dose-limiting side effects. Small-conductance Ca-activated K channels (SK) have been shown to modulate NMDAR activity in the brain. ⋯ Double immunostaining shows coexpression of SK3 and NMDAR subunit, NR1, compatible with functional interaction. Moreover, we demonstrate that i.t. coadministration of NS309 with an NMDAR antagonist reduces the dose of NMDAR antagonist, DL-2-amino-5-phosphonopentanoic acid (DL-AP5), required to produce antinociceptive effects in the CFA model. This reduction could attenuate the unwanted side effects associated with NMDAR antagonists, giving this combination potential clinical implications.