Results 221 to 230 of about 21,166 (263)

Application of the tyrosinase assay to normal melanocytes in culture*

British Journal of Dermatology, 1983
Using a special selection technique, normal guinea-pig melanocytes were maintained in highly purified but sparse cultures (approximately 10(4) cells/25 cm2 culture vessel) which showed little proliferative activity. The applicability of the Pomerantz tyrosinase assay was tested in this in vitro model system using three different approaches, namely ...
J, Auböck, D, Köfler, M, Sifter, P, Fritsch   +3 more
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Radiosensitivity of Normal Human Epidermal Cells in Culture

International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1983
Using an in vitro culture system we have derived radiation survival curves for the clonogenic cells of normal human epidermis. The culture system used allows the epidermal cells to stratify and form a multi-layered sheet of keratinizing cells. The cultures appear to be a very good model for epidermis in vivo. The survival curves show a population which
R, Dover, C S, Potten
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Gap junctions in normal and transformed fibroblasts in culture

Experimental Cell Research, 1972
Abstract Gap junctions were identified by conventional thin sections, lanthanum impregnation, and freeze-fracture in cultures of normal and Rous sarcoma virus transformed fibroblasts known to be capable of ionic coupling. No zonula occludens could be identified.
P, Pinto da Silva, N B, Gilula
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Tissue culture demyelination by normal human serum

Annals of Neurology, 1984
AbstractSerum from all of 20 normal individuals induced some degree of demyelination when applied to well‐myelinated mouse cerebellum cultures. An intact complement sequence through C5 is required. Demyelinating activity was heat labile at 56°C for 30 minutes but was not destroyed at 50°C for 30 minutes (which inhibits properdin factor B and alternate ...
D H, Silberberg, M C, Manning, A D, Schreiber   +2 more
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In vitro culture and differentiation of normal mouse blastocysts

Nature, 1977
WHEN preimplantation mouse embryos are transplanted to extrauterine sites, up to 20% develop almost normally to the egg cylinder stage (equivalent to about 6–7 d in utero). They then become disorganised and give rise to tumours, which are usually mature teratomas containing a wide range of differentiated tissues, but less frequently are progressively ...
Hogan, B, Tilly, R
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Endoscopically Guided Sinus Cultures in Normal Subjects

American Journal of Rhinology, 1999
The study of healthy sinus flora has been pursued with Caldwell-Luc, antral puncture, and anterior rhinoscopy. Increasingly, nasal endoscopy has been used to obtain cultures, yet the significance of findings using this technique remains uncertain. Our ability to interpret the growing number of these cultures will be greatly enhanced by determining the ...
D M, Nadel, D C, Lanza, D W, Kennedy
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A Normal Asset With Cultural Differences

2005
Abstract The extensive interest in disordered narcissism has usually overshadowed studies of narcissistic functioning within what can be considered the normal range. Less is known about the overall vicissitudes within and interactions between normal healthy and exceptional forms of narcissism and how they contrast or interweave in an ...
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Spreading of normal and transformed fibroblasts in dense cultures

Experimental Cell Research, 1975
Abstract Cell spreading in dense cultures of normal mouse embryo fibroblasts and of the two lines of mouse transformed fibroblasts was examined by electron microscopy. The mean number of cell layers in culture and cell population density per unit area of the substrate were detetmined; the mean area of the cell projection on the substratum was found ...
A P, Cherny, J M, Vasiliev, I M, Gelfand
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Confrontation responses of normal and tumorous cells in culture

Experimental Cell Research, 1970
Abstract 1. 1. A line of normal rat fibroblasts (NRF) was established and a diploid clone was obtained (NRF-C-1). NRF-C-1 cells grew in parallel array as monolayers in tissue culture and did not form tumors on inoculation into isologous newborn rats. 2. 2.
C A, Reznikoff, G O, Gey
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Culture and Ideology: The Conception of the Normal

2004
Abstract Contemporary ethnography is generally critical of distinctions between culture and ideology, which tend to imply an imagined (and artificial) opposition between authenticity and imported modernity, or the primitive versus the civilized (Weiss 1996: 25).
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