J. Francis Hartmann's research while affiliated with University of Illinois at Chicago and other places
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Publications (5)
The ultrastructural characteristics of elasmobranch central nervous system have not been previously reported. This study presents a general assessment of aldehyde perfused brain and spinal cord in three species of shark: tiger, hammerhead and Atlantic nurse. The same distinct cell types are present in the shark that exist in mammals and similar cri...
The developing clinical interest in cerebral edema and its neuropathological definition has been paralled by an increasing number of attempts to produce an adequate experimental model for the study of this process. The entity has been vigorously studied and there is a voluminous literature on the subject filled with conflicting reports and divergen...
Citations
... & Woodbury (1969) indicates that blood-brain bar rier is much more permeable to inuline in Selachians ln attempting to explain the mechanisms implied in than in mammals. That may be related to histological ventilatory responses caused in fish by increasing con observations (Long et al., 1968; Brightman etai., centrations of plasma catecholamines, Peyraud-Wait 1970) showing several ultrastructural differences zenegger et al. (1978) suggested that these hormones between brain capillaries of sharks and those of mam might act directly on respiratory centers. The hypoth mals. ...
Reference: Scan1
... It is known for long that glucocorticoids increase the barrier properties of vascular cells (Ingraham et al., 1952;Jarden et al., 1989;Long et al., 1966a;Long et al., 1966b;Yamada et al., 1983). It was also shown that hydrocortisone increases barrier properties in term of TEER and permeability for 14 C-mannitol in epithelial cells ( Zettl et al., 1992). ...
... In addition, large endothelial vacuoles and transendothelial vacuolar transport have been described in a large variety of pathological entities, such as brain tumors (Torack 1961a,b, Shibata et al., 1985, Takano et al., 1991, anoxic ischemic lesions a,b, Castejon, 1994. Cervós-Navarro and Lafuente, 1991, Plateel et al., 1997, Hirano, 1969,1976, Long 1966, Cipolla et al., 2004, injections of Gram negative endotoxin (Clawson et al., 1966), lead encephalopathy (Lampert et al., 1967), experimental allergic encephalomyelitis (Hirano et al., 1970), and human brain edema . These studies show that the formation of endothelial vacuoles could be interpreted as opening of the endothelial 'pore system' induced by different pathological conditions . ...
... Electron microscopy studies of peritumoral tissue have revealed swelling of astrocytes, axons, and myelin sheaths, tissue necrosis, and enlargement of the extracellular space in the white matter. Other studies have also documented improvement of histologic abnormalities that correlate with the use of DXM and parallel clinical improvement (77). ...
