Franck Marin

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The effects of ionic environment on both the intrinsic rate of differentiation and the response to exogenous cyclic AMP in Dictyostelium discoideum have been examined. K+ specifically inhibits the rate of early development when present at concentrations > 15 mM. Na+ does not inhibit at concentrations up to 25 mM, and can partially overcome K+ inhibition.(More)
The presence and distribution of vimentin, a subunit of intermediate filaments, in the neural lobe and in the pars intermedia of the cat, rabbit and rat pituitary glands were investigated immunocytochemically. In the pars intermedia, our study revealed the presence of vimentin in glial-like cells located between glandular secretory cells of the three(More)
A bibliometric study was made of the Spanish scientific output in the Neurosciences between 1984 and 1993. The material studied was selected in accordance with the Science Citation Index (SCI) for the year 1993 (Neurosciences section) and from the journals considered to be a "priority' by the data base Excepta Medica CD: Neurosciences. The usual(More)
The occurrence of vimentin, a specific intermediate filament protein, has been studied by an indirect immunoperoxidase method in the anterior pituitary gland of adult rats, cats and rabbits of both sexes. In the three species studied, the immunoreaction product was detected in the cytoplasm of stellate-shaped cells scattered throughout the pars distalis.(More)
The immunocytochemical localization of basic fibroblast growth factor (bFGF) was studied in the human pituitary gland using a polyclonal antibody against fraction 1-24 of bovine recombinant bFGF. From a technical perspective, methacarn-fixed tissues were associated with a better preservation of bFGF immunoreactivity. Basic FGF-immunopositive glandular(More)
In the present work, the presence and distribution of astrocytes in the rat pineal stalk is investigated applying an immunohistochemical technique for the demonstration of glial fibrillary acidic protein (GFAP) on Epon-embedded semithin sections (0.5 micron thick). GFAP-immunoreactive cells are evenly and regularly distributed along the entire pineal stalk.(More)
BACKGROUND Localized hypertrophic neuropathy (LHN) of the sciatic nerve in children is a rare condition characterized by a painless neurological deficit in the sciatic nerve territory. OBJECTIVE To demonstrate the role of MRI using a specific protocol and describe the primary findings in LHN. MATERIALS AND METHODS Imaging in four children (age 2 years(More)
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