Histochemistry of the neuroglia and myelin in experimental cerebral oedema

Ibrahim, M. Z. M.; Morgan, R. S.; Adams, C. W. M.

doi:10.1136/jnnp.28.2.91

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1965

1985

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Cited by 9 publications

(2 citation statements)

References 25 publications

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“…Myelin is also directly involved in white matter edema caused by administration of triethyl tin; the oligodendrocytes do not appear to be affected by this agent Ibrahim et al, 1965).…”

Section: ) Andmentioning

confidence: 97%

Myelin

1977

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“…Myelin is also directly involved in white matter edema caused by administration of triethyl tin; the oligodendrocytes do not appear to be affected by this agent Ibrahim et al, 1965).…”

Section: ) Andmentioning

confidence: 97%

Myelin

1977

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“…These changes provoking a myelin sheath delamination by water imbibition might also be responsible for the in vivo myelin alteration. ATPase and TPPase glial changes during acute induced cerebral edemas in cats were related with a disturbed ionic transport across membranes [Reissenweber and Benedetti, 1969], Also a variable participation of oligoden droglia during experimental brain edemas has been reported [Rubinstein et at., 1962: Ibrahim et a!., 1965Hirano el ai, 1965: Blakemore et ah, 1972. Intravenous water infusion in some animals produces an increment in brain volume with loss of sodium and chloride [van Harreveld el at., 1966] .…”

Section: Discussionmentioning

confidence: 99%

Enzyme histochemistry of rat interfascicular oligodendroglia, with special reference to 5’-nucleotidase

Vercelli-Retta¹,

Silveira²,

Dajas³

et al. 1976

Cells Tissues Organs

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The interfascicular oligodendroglia of the rat striatum nucleus is studied in control animals and under experimentally induced brain edemas. Enzyme histochemical studies were performed. Normal oligodendrocytes show two different enzymatic distributions. While Mg²⁺-ATPase, TPPase, adenylate cyclase and SDH are shown to be situated at the cell bodies and some proximal processes, 5’-nucleotidase reaction is seen at the cell fine distal processes. In spite of its strong activity in oligodendroglial endings the latter enzyme is not seen at the myelin sheath. This sheath and the interfascicular cells being intimately related, 5’-nucleotidase appears to be important not only during myelination, as almost all authors emphasize, but also in the adult myelin metabolism. Experimental brain edema shows some changes in the interfascicular oligodendroglia enzymatic activities for 5’-nucleotidase, Mg²⁺-ATPase and adenylate cyclase. A progressive disappearance of the former enzyme is observed. These features and those derived from local ionic alterations may be concerned with the special susceptibility of white matter for some types of brain swellings.

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