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Ca2+-ATPase activity on the astrocyte plasma membrane was investigated ultracytochemically, using the lead salt technique. Normal astrocytes showed a weak cytochemical reaction for Ca2+-ATPase activity, deposits of the reaction product being small. At 7 and 15 days after cold lesioning, reactive astrocytes apparently in the process of repair of the edematous lesion were observed; these demonstrated an intense cytochemical reaction for Ca2+-ATPase activity in their plasma membranes facing the extracellular fluid, with reaction product accumulation. At 2 months, the lesion had progressed to glial scars containing sporadic microcysts. The reactive astrocytes surrounding the microcysts demonstrated a moderate cytochemical reaction for Ca2+-ATPase activity in their free plasma membranes, whereas those arranged in a cell-to-cell pattern showed little reaction product in their plasma membranes. In conclusion, a more intense cytochemical reaction was always observed in the free plasma membrane of reactive astrocytes.
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
January 2000,
Medical electron microscopy : official journal of the Clinical Electron Microscopy Society of Japan,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
January 1989,
Archives of oto-rhino-laryngology,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
May 1989,
Neurologia medico-chirurgica,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
July 1987,
Nihon Sanka Fujinka Gakkai zasshi,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
January 1995,
Zhonghua er bi yan hou ke za zhi,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
March 1988,
Brain research,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
January 1984,
Cell and tissue research,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
January 1990,
Journal of electron microscopy,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
January 1990,
Acta oto-laryngologica,
K Kawai, and
H Takahashi, and
K Wakabayashi, and
F Ikuta
January 1984,
Cell and tissue research,
