scholarly journals K-5. Electron Microscopic Study of the ATPase Activity in the Human Brain Tumors

1971 ◽  
Vol 11 ◽  
pp. 328-328
Author(s):  
Mitsusuke MIYAGAMI ◽  
Saburo NAKAMURA ◽  
Nobuo MORIYASU
Keyword(s):  
Brain Tumors ◽  
Atpase Activity ◽  
Human Brain ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Electron Microscopic ◽  
Human Brain Tumors

Human Brain Tumors: An Electron-Microscopic Study

1962 ◽  
Vol 19 (9) ◽  
pp. 731-753 ◽  
Author(s):  
Anthony J. Raimondi ◽  
Sean Mullan ◽  
Joseph P. Evans
Keyword(s):  
Brain Tumors ◽  
Human Brain ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Electron Microscopic ◽  
Human Brain Tumors

Electron microscopic study of ATPase activity in human brain tumors

1973 ◽  
Vol 38 (4) ◽  
pp. 420-427 ◽  
Author(s):  
Saburo Nakamura ◽  
Mitsusuke Miyagami ◽  
Nobuo Moriyasu
Keyword(s):  
Brain Tumors ◽  
Atpase Activity ◽  
Human Brain ◽  
Malignant Tumors ◽  
Ultrastructural Localization ◽  
Vascular Wall ◽  
Electron Microscopic ◽  
Content Type ◽  
Human Brain Tumors ◽  
Low Activity

✓ Ultrastructural localization of ATPase was demonstrated in 15 human brain tumors; ATPase activity in the tumor cell was outside the cell membrane and appeared in varying degrees according to the type of tumor. Nonglial tumors such as meningiomas and chromophobe pituitary adenomas showed more intense enzyme activity than gliomas; malignant tumors such as medulloblastoma and glioblastoma multiforme showed low activity. Blood vessels in the tumor showed poor ATPase activity in both endothelium and basement membrane; the lack of ATPase in the vascular wall may contribute to the breakdown of the blood-brain barrier.

scholarly journals ELECTRON MICROSCOPIC STUDY OF THE ATPASE ACTIVITY OF THE BAI STRAIN A (MYELOBLASTOSIS) AVIAN TUMOR VIRUS

1962 ◽  
Vol 15 (3) ◽  
pp. 451-462 ◽  
Author(s):  
Alex B. Novikoff ◽  
Guy de Thé ◽  
D. Beard ◽  
J. W. Beard
Keyword(s):  
Electron Microscopy ◽  
Plasma Membrane ◽  
Atpase Activity ◽  
Light Microscopy ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Frozen Sections ◽  
Electron Microscopic ◽  
Tumor Virus

Thymus glands of chicks with leukemia induced by BAI strain A (myeloblastosis) virus were fixed in cold 4 per cent formaldehyde-sucrose. Frozen sections were incubated in the ATPase medium of Wachstein and Meisel and studied by light microscopy and electron microscopy. The ATPase activity of the virus is localized to the outermost membrane of the virus. The membrane of the blast-like cells of the thymus cortex from which the virus emerges, by budding, also possesses such activity. It appears likely that the outermost membrane of the virus is derived from the plasma membrane of these cells.

Electron microscopic study of the developing capillaries of human brain

1975 ◽  
Vol 31 (3) ◽  
pp. 229-242 ◽  
Author(s):  
Jean-Jacques Hauw ◽  
Brigitte Berger ◽  
Raymond Escourolle
Keyword(s):  
Human Brain ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Electron Microscopic

scholarly journals An Electron Microscopic Study on Adenosinetriphosphatase (ATPase) Activity in the Heart Muscle

1970 ◽  
Vol 34 (1) ◽  
pp. 13-19 ◽  
Author(s):  
SEITOKU MIZUNO ◽  
SHIGERU TAKAMATSU ◽  
YUICHI TAMADA ◽  
KOHEI ARAYA ◽  
AKIHIKO TAKAHASHI ◽  
...  
Keyword(s):  
Atpase Activity ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Heart Muscle ◽  
Electron Microscopic

scholarly journals Interaction of Listeria monocytogenes with Human Brain Microvascular Endothelial Cells: an Electron Microscopic Study

2000 ◽  
Vol 68 (6) ◽  
pp. 3275-3279 ◽  
Author(s):  
Lars Greiffenberg ◽  
Werner Goebel ◽  
Kwang Sik Kim ◽  
Justin Daniels ◽  
Michael Kuhn
Keyword(s):  
Endothelial Cells ◽  
Listeria Monocytogenes ◽  
Human Brain ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Microvascular Endothelial Cells ◽  
Brain Microvascular Endothelial Cells ◽  
Electron Microscopic ◽  
Independent Manner ◽  
Microvascular Endothelial

ABSTRACT Internalization of Listeria monocytogenes into human brain microvascular endothelial cells (HBMEC) has recently been demonstrated to be dependent upon the inlB gene. In the present scanning electron microscopic study we show that L. monocytogenes efficiently interacts with the surface of HBMEC in an inlB-independent manner which is also different from invasion. The inlB-dependent invasion of HBMEC by L. monocytogenes is accompanied by intracellular multiplication, movement, and production of bacterium-containing protrusions. These protrusions extend from the cell surface without perturbation of any adjacent cellular membrane.

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