کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5926061 1167334 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sevoflurane and isoflurane monoanesthesia abolished the phrenic long-term facilitation in rats
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی فیزیولوژی
پیش نمایش صفحه اول مقاله
Sevoflurane and isoflurane monoanesthesia abolished the phrenic long-term facilitation in rats
چکیده انگلیسی
Phrenic long-term facilitation (pLTF) is a form of respiratory plasticity, manifested by prolonged increase in peak amplitude of phrenic nerve activity (PNA) after episodes of acute intermittent hypoxia (AIH). The aim was to investigate the effects of sevoflurane and isoflurane monoanesthesia at equipotent anesthetic doses on the expression of amplitude pLTF. Experiments were performed on Sprague-Dawley anesthetized, vagotomized, and mechanically ventilated rats. Two experimental groups, sevoflurane and isoflurane, and a control group (urethane-anesthetized) were formed. Peak amplitude of phrenic nerve activity, respiratory frequency and breathing rhythm parameters (Ti, inspiratory duration; Te, expiratory duration; and Ttot, total respiratory time duration) were analyzed during hypoxic episodes, and at 15, 30, and 60 min after the last hypoxic episode. In the control group average PNA increased by 173.03 ± 70.16% (p < 0.001), at 60 min after the last hypoxic episode compared to baseline values. Therefore amplitude pLTF was induced. In the sevoflurane and isoflurane groups PNA failed to increase, and in fact decreased by 15.79 ± 15.18% and 31.00 ± 11.00%, respectively (p > 0.05). Amplitude pLTF was abolished during sevoflurane and isoflurane monoanesthesia.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Respiratory Physiology & Neurobiology - Volume 189, Issue 3, 1 December 2013, Pages 607-613
نویسندگان
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