| Assessment of the outcomes of cerebral blood flow measurements after electrical stimulation of upper right incisor tooth in rabbits. | |
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MedLine Citation:
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PMID: 19922357 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The cerebral vessels are innervated by sympathetic, parasympathetic, and sensory nerves. A sensory innervation of the cerebral vessels originating in the trigeminal ganglion has been described in a number of species by several investigations. It has been shown that the electrical stimulation of the trigeminal ganglion causes an increase of cerebral cortical blood flow (CCoBF). The aim of the present study was to determine the effects of dental electrical stimulation the CCoBF in rabbits. A stimulating electrode was located in the upper right incisor tooth of rabbits and trigeminal ganglion was stimulated orthodromically via the infraorbital nerve. Variations in the cortical CCoBF were evaluated by laser-Doppler flowmetry. In experiment group, CCoBF increased together with the beginning of electrical stimulation (5 V, 0.5-ms impulse duration, square-shaped, 10-Hz frequency). The right and left hemisphere CCoBF values of stimulation period at 15s, 30s, 45s, 60s, 75s, and 90s were significantly higher than those of baseline and 105 and 120s (p < 0.05). The maximum increase in right and left CCoBF was 15.6% and 15.1% respectively. In post-stimulation period, the right CCoBF decreased gradually and returned to the baseline values at 120 s. In experiment groups, the CCoBF values of right hemisphere were comparable that of left hemisphereL (p > 0.05). This study demonstrated that the electrical stimulation of the trigeminal nerve's infraorbital branch via dental pulp increases the cortical right and left CCoBF under physiological conditions. |
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Authors:
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Sefa Gulturk; Rustu Gedik; Hakan Develioglu; Ibrahim Oztoprak; Ali Cetin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The International journal of neuroscience Volume: 119 ISSN: 1563-5279 ISO Abbreviation: Int. J. Neurosci. Publication Date: 2009 |
Date Detail:
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Created Date: 2009-11-20 Completed Date: 2010-01-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0270707 Medline TA: Int J Neurosci Country: England |
Other Details:
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Languages: eng Pagination: 1292-302 Citation Subset: IM |
Affiliation:
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Department of Physiology, School of Medicine, Cumhuriyet University, 58140 Sivas, Turkey. sgulturk@yahoo.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Blood Pressure / physiology Cerebrovascular Circulation / physiology* Dental Pulp / physiology Electric Stimulation Female Functional Laterality / physiology Hydrogen-Ion Concentration Incisor / innervation, physiology* Laser-Doppler Flowmetry Male Oxygen Consumption / drug effects Rabbits |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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