Cochlear blood flow. The effect of noise at 60 minutes' exposure

Journal Article · Thu Jan 01 00:00:00 EST 1987 · Arch. Otolaryngol. Head Neck Surg.; (United States)

DOI:https://doi.org/10.1001/archotol.1987.01860010040011· OSTI ID:6741060

Prazma, J; Vance, S G; Bolster, D E; Pillsbury, H C; Postma, D S

The effect of 60 minutes of exposure to high-frequency (10- to 40-kHz), high-intensity (115-dB) noise on the cochlear blood flow (CoBF) was investigated in adult gerbils. The CoBF was measured with a newly improved microsphere method. The number of microspheres in cochlear tissue that had been dissected by the surface preparation technique was assessed by direct counting. Our experiments have indicated that the CoBF is elevated even after 60 minutes of noise exposure. This was true particularly in the areas where these frequencies stimulate the cochlea. The noise also increased CoBF in the opposite ear in areas not corresponding to the stimulation frequencies (second and third turn). This phenomenon is under further investigation.

• Research Organization: Univ. of North Carolina School of Medicine, Chapel Hill
• OSTI ID: 6741060
• Journal Information: Arch. Otolaryngol. Head Neck Surg.; (United States), Vol. 1
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AUDITORY ORGANS
BLOOD FLOW
NOISE
BIOLOGICAL EFFECTS
ENVIRONMENTAL EXPOSURE
GERBILS
MICROSPHERES
ANIMALS
BODY
MAMMALS
ORGANS
RODENTS
SENSE ORGANS
VERTEBRATES
560400* - Other Environmental Pollutant Effects