期刊
ANNALS OF CARDIAC ANAESTHESIA
卷 22, 期 2, 页码 122-135出版社
WOLTERS KLUWER MEDKNOW PUBLICATIONS
DOI: 10.4103/aca.ACA_111_18
关键词
Argon; cardiac arrest; ischemia-reperfusion injury; neuroprotection
The noble gas argon (Ar) is a biologically active element and has been extensively studied preclinically for its organ protection properties. This work reviews all preclinical studies employing Ar and describes the clinical uses reported in literature, analyzing 55 pertinent articles found by means of a search on PubMed and Embase. Ventilation with Ar has been tested in different models of acute disease at concentrations ranging from 20% to 80% and for durations between a few minutes up to days. Overall, lesser cell death, smaller infarct size, and better functional recovery after ischemia have been repeatedly observed. Modulation of the molecular pathways involved in cell survival, with resulting anti-apoptotic and pro-survival effects, appeared as the determinant mechanism by which Ar fulfills its protective role. These beneficial effects have been reported regardless of onset and duration of Ar exposure, especially after cardiac arrest. In addition, ventilation with Ar was safe both in animals and humans. Thus, preclinical and clinical data support future clinical studies on the role of inhalatory Ar as an organ protector.
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