Paroxysmal atrial fibrillation and stroke (cerebrovascular accidents) in males and females above and below age 65 on days of different geomagnetic activity levels [0.03%]
不同年龄的男性和女性在地磁活动不同的日子发生阵发性房颤及脑血管病的概率研究
E Stoupel,J N Martfel,Z Rotenberg
E Stoupel
The goal of this study was to determine whether differences exist in the frequency of paroxysmal atrial fibrillation and stroke (cerebrovascular accident) on days of different geomagnetic activity levels. Geomagnetic activity was divided in...
U K Sentürk,G Oner,V M Izgüt-Uysal
U K Sentürk
Since the kidney is the main target organ for many metals including cadmium, the generation of the products of lipid peroxidation due to accumulation of these toxic metals in the kidney may have importance in the mechanism of their nephroto...
Pentoxifylline-induced vasodilatation is not endothelium-dependent in rabbit aorta [0.03%]
培哚普利胺引起的血管舒张不依赖于兔主动脉的内皮功能
I Kaputlu,G Sadan
I Kaputlu
It is well known that phosphodiesterase inhibitors, such as MB 22948 or papaverine, induce endothelium-dependent relaxation by potentiating the effects of endothelium-derived relaxing factor released spontaneously in vascular tissues. The p...
The effect of hypothermia on gas exchange in anaesthetized rats in a confined atmosphere [0.03%]
低温对封闭大气中麻醉大鼠气体交换的影响
R Arieli,C Lehrer,N Gavriely
R Arieli
Both hypothermia and anaesthesia are known to prolong hypoxic survival. The combined effect of anaesthesia and hypothermia on survival in a confined atmosphere was studied in rats whose O2 consumption (VO2) produced hypoxia. Blood gases and...
Power spectrum analysis of spontaneous fluctuations in the photoplethysmographic signal [0.03%]
基于光电容积描记信号自发波动的频谱分析方法研究
M Nitzan,H de Boer,S Turivnenko et al.
M Nitzan et al.
Direct measurement of variability in the peripheral circulation was performed by means of photoplethysmography, which provides assessment of blood volume in tissue and systolic blood volume increase. Both parameters showed oscillations at a...
Mechanisms of circulatory depression during simulated central apneas in the anesthetized dog [0.03%]
模拟中枢性呼吸暂停时的循环抑制机制（麻醉狗）
A Tarasiuk,S M Scharf
A Tarasiuk
We recently reported that during simulated central apneas (SCA) heart frequency was more severely depressed than during obstructive apneas. In the present study, we examined factors influencing this response including hypoxia, hypercapnia, ...
Effect of CO2 on Vth nerve inhibition of respiration in isolated rat nervous system [0.03%]
二氧化碳对分离鼠神经系统的迷走神经抑制呼吸的影响
A Tarasiuk,S Gelbvaks,Y Grossman
A Tarasiuk
The role of hypercapnia in terminating trigeminal (Vth) nerve inhibition of respiration is not clear. Phrenic nerve responses to Vth nerve stimulation were examined during eucapnia and hypercapnia. We hypothesized that hypercapnic stimulati...
Dual effect of aminophylline on the ventilatory response to hypoxia in the rat [0.03%]
氨茶碱对缺氧大鼠呼吸反应的双重作用
M Maskrey,K J Westwood
M Maskrey
Male Hooded Wistar rats were exposed to three five-minute periods of hypoxia in which they breathed a gas mixture comprising 7% O2 and 93% N2. Before the second and third hypoxic exposures rats were injected (i.m.) with aminophylline (an ad...
Power equation for all-or-none effects of oxygen toxicity and cumulative oxygen toxicity [0.03%]
幂律方程表征一氧化氮毒性和累积性一氧化氮毒性效应
R Arieli
R Arieli
Quantification of the level of O2 toxicity may provide a means of setting limits on various hyperoxic exposures. A previously suggested expression for quantitative oxygen toxicity, DMG = a x t2 x PO2c (t-time, DMG-measured level of O2 toxic...
The involvement of serotonin (5-hydroxytryptamine) in photosensitive epilepsy [0.03%]
五羟色胺在光敏性癫痫中的作用研究进展
E Anyanwu,G F Harding,A Edson
E Anyanwu
Over the last decade, vigorous efforts have been made by neuroscientists to unravel the cellular and molecular basis of photosensitive Epileptogenic activities in the central nervous system (CNS). Many neurotransmitters are implicated in br...