Publication: Ultrastructural characteristics of blood vessels in the infant and adult human cerebral cortex
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Date
1997
Authors
Zhang, H.F. ; Ong, W.Y. ; Leong, S.K. ; Garey, L.J.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Blood vessels in frontal and temporal
cerebral cortex of adults and two infants aged 5 months
and 5 years were studied by electron microscopy. The
cells outside the endothelium were classified on their
ultrastructural characteristics. Fibroblasts had prominent
rough endoplasmic reticulum and few mitochondria in
the cytoplasm. They were different from pericytes,
which contained a prominent Golgi apparatus but only a
few, isolated profiles of rough endoplasmic reticulum.
Smooth muscle cells were distinguished from fibroblasts
and pericytes by the presence of filaments and caveolae.
Perivascular cells were characterised by the presence of
lysosomes and granules of different sizes and electron
densities, and were present at al1 ages studied. Plasma
cells had abundant rough endoplasmic reticulum in the
cytoplasm, and were present only in the 5-month-old
infant cortex. Cortical vessel diameter increased with
age.
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