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1996-03-30
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Document 0919
DOCN M9650919
TI Ultrastructural findings in the cochlea of AIDS cases.
DT 9505
AU Pappas DG Jr; Chandra f1p4ar HK; Lim J; Hillman DE; Department of
Otolaryngology, NYU Medical Center, NY 10016, USA.
SO Am J Otol. 1994 Jul;15(4):456-65. Unique Identifier : AIDSLINE
MED/96148973
AB Neurotologic manifestations associated with the human immunodeficiency
virus (HIV-1) are poorly understood. Eight temporal bones of acquired
immunodeficiency syndrome (AIDS) cases were dissected and investigated
ultrastructurally to determine if pathogens and pathologic changes were
present within the cochlea. Extracellular viral-like particles with
morphologic characteristics of HIV-1 were identified on the tectorial
membrane in three cases. Numerous viral-like particles with cores
appeared trapped within lacunae along the tectorial membrane in one
specimen. Intracellular viral-like particles, appearing essentially
similar to identified HIV-1 particles of infected lymphocyte cultures,
were found within the cytoplasm of connective tissue cells. These same
cells had gradients of enlarged viral envelopes forming cisterns that
contained cores and varying amounts of cistern particulate. Some
sectioned profiles of enlarged cytoplasmic cisterns revealed the
attachment and inward protrusion of the core from the cistern wall.
Other ultrastructural findings included cytoplasmic globular-dense
particulate bodies, aggregates of smaller viral-like particles, and
mitochondrial changes. This demonstration of prominent viral-like
particles and cochlear pathology may help to explain the neurotologic
manifestations associated with HIV-1 infection.
DE Adult Cadaver Cochlea/PATHOLOGY/ULTRASTRUCTURE/*VIROLOGY Female
Human HIV Infections/*PATHOLOGY HIV-1/*ISOLATION &
PURIF/ULTRASTRUCTURE Male Microscopy, Electron Middle Age Temporal
Bone JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).