| Antihypertensive role of glossopharyngeal nerve stimulation by nifedipine using as calcium channel blocking agent in hypertension: an experimental study. | |
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MedLine Citation:
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PMID: 20091275 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Nifedipine is a therapeutic drug in acute attacks of hypertension because of its rapid absorption from oral mucosa. Taste receptors are innervated by glossopharyngeal nerves (GPN) as well as by facial and vagal nerves. Sensory neurons of the GPNs are localised in the petrous ganglion (PG). Transection of the taste sensitive GPN fibres causes taste bud and PG degeneration and spontaneous hypertension. In this study, the role of chemical stimulation of the taste buds of the GPN by nifedipine and its role in treatment of hypertension were investigated in rabbits. Nifedipine was dropped sublingually (20 mg) for 4 days in the study group, followed by measuring blood pressures again. Then, the lingual branches of GPNs were cut. One month later, blood pressures were measured for 4 days. All animals were sacrificed humanely at the end of the experiment, and normal and degenerated neuron densities in the petrosal ganglions were enumerated stereologically. The antihypertensive effect of nifedipine decreased after GPNs denervation, in accordance with the increase of degenerated neurons in the PG. The chemical stimulation of taste buds of the GPNs by nifedipine may be an important effect of nifedipine application in addition to its calcium channel blocking effect. The rapid decrease in blood pressure following sublingual use of nifedipine may also result from the direct stimulation of taste buds innervated by the GPNs. |
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Authors:
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Mehmet Dumlu Aydin; Ednan Bayram; Zekai Halici; Nazan Aydin; Canan Atalay; Hizir Ulvi; Dilcan Kotan; Cemal Gundogdu |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Archives of pharmacal research Volume: 32 ISSN: 0253-6269 ISO Abbreviation: Arch. Pharm. Res. Publication Date: 2009 Nov |
Date Detail:
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Created Date: 2010-01-22 Completed Date: 2010-03-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8000036 Medline TA: Arch Pharm Res Country: Korea (South) |
Other Details:
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Languages: eng Pagination: 1607-11 Citation Subset: IM |
Affiliation:
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Department of Neurosurgery, Medical Faculty, Ataturk University, Erzurum, Turkey. nmda11@hotmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Administration, Sublingual Animals Antihypertensive Agents / administration & dosage, pharmacology Blood Pressure / drug effects Calcium Channel Blockers / administration & dosage, pharmacology* Ganglia, Sensory / drug effects, metabolism Glossopharyngeal Nerve / drug effects*, metabolism Hypertension / drug therapy* Nifedipine / administration & dosage, pharmacology* Rabbits Taste Buds / metabolism Tongue / innervation, metabolism |
| Chemical | |
Reg. No./Substance:
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0/Antihypertensive Agents; 0/Calcium Channel Blockers; 21829-25-4/Nifedipine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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