نتایج جستجو برای: plethysmography
تعداد نتایج: 2840 فیلتر نتایج به سال:
To test the hypothesis that stress alters the performance of the respiratory control system, we compared the acute (20 min) responses to moderate hypoxia and hypercapnia of rats previously subjected to immobilization stress (90 min/day) with responses of control animals. Ventilatory measurements were performed on awake rats using whole body plethysmography. Under baseline conditions, there were...
The experimental evidence reported here supports the validity of venous occlusion plethysmog-raphy. 1 modified the technic of Brodie, 2 venous occlusion plethysmography has been widely employed to estimate blood flow in fingers, toes, and limbs. Several excellent comprehensive reviews of the technical pitfalls of the method are available. 3-4 The validity of the venous occlusion technic of plet...
Background: Idiopathic pulmonary fibrosis is one of the most important chronic respiratory diseases. One of the causes of its occurrence and exacerbation is imbalance in the antioxidant and inflammatory systems. The aim of this study was to evaluate the effect of supplementation of these vitamins on functional lung tests in adults with pulmonary fibrosis. Methods: 33 patients participated in t...
Estrogen is necessary for the expression of phrenic long-term facilitation (pLTF) in female rats. pLTF, a well-studied model respiratory neuroplasticity, characterized by progressive increase nerve amplitude following acute intermittent hypoxia (AIH). Gonadally-intact, adult rats only develop pLTF stages estrous cycle with high levels circulating estrogen. Removal ovaries (ovariectomy, OVX), pr...
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