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Literature DB >> 7917257

Autoradiographic measurement of regional brainstem blood flow: occlusion of the anterior inferior cerebellar artery.

H Inui¹, H Miyahara, K Nario, T Matsunaga.

Abstract

Autoradiography was used to measure regional brainstem blood flow in Wistar rats following permanent left anterior inferior cerebellar artery (AICA) occlusion. With the AICA occluded, blood flow to the left vestibular nucleus decreased 31% while flow to the left cochlear nucleus decreased 47% when compared to the right (unobstructed) side. In the rat, the median pontine branch of the basilar artery was found to provide the principal blood supply to the vestibular nucleus. Electrocochleography was also used to measure the action potential (AP), summating potential (SP) and cochlear microphonics (CM) during left AICA occlusion. The AP disappeared completely after at least 7 min, while the SP polarity changed from negative to positive. Findings also showed that CM2 did not disappear completely in pre-mortem animals.

Entities: Disease Species

Mesh：

Substances：
Carbon Radioisotopes

Year: 1994 PMID： 7917257 DOI： 10.1007/bf00628430

Source DB: PubMed Journal: Eur Arch Otorhinolaryngol ISSN： 0937-4477 Impact factor: 2.503

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5. A new method for vascular occlusion. Photochemical initiation of thrombosis.

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6. Extracellular potassium activity, evoked potential and tissue blood flow. Relationships during progressive ischaemia in baboon cerebral cortex.

Authors: N M Branston; A J Strong; L Symon
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2. Auditory brainstem response findings in brainstem ischemia following selective occlusion of the anterior inferior cerebellar artery in the rat.

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2 in total

Autoradiographic measurement of regional brainstem blood flow: occlusion of the anterior inferior cerebellar artery.

1. The theory and applications of the exchange of inert gas at the lungs and tissues.

2. Cochlear blood flow following temporary occlusion of the cerebellar arteries.

3. A new model for photochemically induced thrombosis in the inner ear microcirculation and the use of hearing loss as a measure for microcirculatory disorders.

4. The [14C]deoxyglucose method for the measurement of local cerebral glucose utilization: theory, procedure, and normal values in the conscious and anesthetized albino rat.

5. A new method for vascular occlusion. Photochemical initiation of thrombosis.

6. Extracellular potassium activity, evoked potential and tissue blood flow. Relationships during progressive ischaemia in baboon cerebral cortex.

7. Cortical evoked potential and extracellular K+ and H+ at critical levels of brain ischemia.

8. Hindbrain circulation and its evaluation by dynamic computed tomography.

9. Measurement of local cerebral blood flow with iodo [14C] antipyrine.

10. Induction of reproducible brain infarction by photochemically initiated thrombosis.

1. Brainstem ischemic damage following occlusion of the blood vessels in the rat's posterior cerebral circulation.

2. Auditory brainstem response findings in brainstem ischemia following selective occlusion of the anterior inferior cerebellar artery in the rat.