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Vloga adrenergičnih receptorjev alfa pri mikrocirkulacijskem odgovoru kože na hlad in zažem arterij : disertacijaCankar, Ksenija, 1965-Clinically most often used methods for evaluation of the microcirculatory function are response to cold and to arterial occlusion. Both responses are complex in nature. They are composed of several ... either local or systemic components. Their roles have not been clarified yet. According to the previousstudies, there is an unsolved question on the contribution of the sympathetic nervous system acting thru the alpha1 and alpha2 adrenergic receptors. Our aim was to clarify the role of these receptors in the origin ofboth microcirculatory responses with the use of the laser-Doppler method forskin flow measurements. In the first part of the study we compared responses to the direct and indirect (the cooling of contralateral hand) localcooling before and after intradermal injection of the alpha-adrenoceptor antagonists and agonists with the response in the denervated replanted fingers. In the second part we compared cutaneous postocclusive reactive hyperaemia (PRH before and after intradermal injection of the alpha-adrenoceptor antagonists and agonists. METHODSČ Laser-Doppler (LD) flow measurements were performed on the fingertips of healthy volunteers and of patients with replanted digits. LD flow was monitored 2 minutes before and 6 minutes during local cooling of one hand at 15 degrees Celsius and before and after an 8-minute occlusion of digital arteries. In healthy fingers, we studied the effect of intradermal microinjection (1 micro l) of alpha antagonists (prazosine, yohimbine) and alfa agonists (phenilephrine, clonidine) on local cooling and PRH responses. We evaluated the degree of the LD flow decrease in response to the direct and indirect local cooling with respect to the values obtained before cooling (ANOVA, Dunnet t-test). We analysed the magnitude of peak flow of PRH and its duration. (Abstract truncated at 2000 characters).Type of material - dissertation ; adult, seriousPublication and manufacture - Ljubljana : [K. Cankar], 2000Language - slovenianCOBISS.SI-ID - 2167828
Author
Cankar, Ksenija, 1965-
Other authors
Štrucl, Martin
Topics
Mikrocirkulacija |
Fiziologija |
Disertacije |
koža |
krvni pretok |
mraz |
simpatično živčevje |
adrenergični receptorji
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Cankar, Ksenija, 1965- | 15243 |
Štrucl, Martin | 09557 |
Source: Personal bibliographies
and: SICRIS
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