<b>Changes in skin blood flow and current perception </b><b>threshold during pain ⁄ numbness sensation </b><b>evoked by ischemia-reperfusion </b><b>in human subjects </b>
نویسندگان
چکیده
منابع مشابه
Intensification of brain injury and blood-brain barrier permeability by short-term hypertension in experimental model of brain ischemia/reperfusion
Introduction: Arterial hypertension is one of the causes of stroke, and as one of the vasculotoxic conditions intensifies ischemic stroke complications. The aim of the present study was to analyze the effects of short-term cerebral hypertension on ischemia/reperfusion injury and pathogenesis of ischemic stroke. Methods: The experiments were performed on three groups of rats (N=36) Sham, cont...
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results the basic mechanism of hepatic ischemia – reperfusion injury is one of blood deprivation during ischemia, followed by the return of flow during reperfusion. it involves a complex series of events, such as mitochondrial deenergization, adenosine-5'-triphosphate depletion, alterations of electrolyte homeostasis, as well as kupffer cell activation, oxidative stress changes and upregulation...
متن کاملCapillary flow and diameter changes during reperfusion after global cerebral ischemia studied by intravital video microscopy.
The reaction of cerebral capillaries to ischemia is unclear. Based on Hossmann's observation of postischemic "delayed hypoperfusion," we hypothesized that capillary flow is decreased during reperfusion because of increased precapillary flow resistance. To test this hypothesis, we measured cerebral capillary erythrocyte velocity and diameter changes by intravital microscopy in gerbils. A cranial...
متن کاملInfusion pressure and pain during microneedle injection into skin of human subjects.
Infusion into skin using hollow microneedles offers an attractive alternative to hypodermic needle injections. However, the fluid mechanics and pain associated with injection into skin using a microneedle have not been studied in detail before. Here, we report on the effect of microneedle insertion depth into skin, partial needle retraction, fluid infusion flow rate and the co-administration of...
متن کاملEvaluation of dynamic changes in microvascular flow during ischemia-reperfusion by myocardial contrast echocardiography.
BACKGROUND Dynamic changes of myocardial blood flow have been observed after reperfusion of an occluded coronary artery. MCE performed by intracoronary contrast injection can provide an estimate of microvascular flow. We hypothesized that MCE performed using intravenous infusion of a new generation contrast agent and electrocardiogram-gated harmonic imaging would be able to assess serial change...
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ژورنال
عنوان ژورنال: PAIN RESEARCH
سال: 2010
ISSN: 0915-8588,2187-4697
DOI: 10.11154/pain.25.45