Results 161 to 170 of about 198,070 (204)

Pigment Cell Pattern Formation

2017
In this chapter, an LGCA is introduced as model for pattern formation in salamander larvae. After providing the biological background the model is defined and tested by means of simulations. Model results demonstrate that the larval stripe pattern can arise solely as a consequence of direct cell interactions.
Andreas Deutsch, Sabine Dormann
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Computer simulation of a Mulluscan pigmentation pattern

Journal of Theoretical Biology, 1969
The formal characteristics of a colour pattern of complex appearance on a molluscan shell were studied by developing a computer program which produces an acceptable simulation of it. The pattern clearly involves a random factor determining points of initiation of diverging lines of pigment.
C H, Waddington, R J, Cowe
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Patterned Dystrophies of the Retinal Pigment Epithelium

Archives of Ophthalmology, 1977
Three varieties of patterned dystrophies of the retinal pigment epithelium have been described in the literature: They are reticular dystrophy, macroreticular dystrophy, and butterfly-shaped pigment dystrophy of the fovea (macula). They are all inherited and are bilateral and symmetric.
R C, Hsieh, B S, Fine, J S, Lyons
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Cell projections set up pigment pattern

Science, 2017
Cell Signaling Macrophages eliminate dead or dying cells and identify and destroy invading microbes. However, they also exhibit nonimmune functions in development and homeostasis. Eom and Parichy show that macrophages are essential for postembryonic remodeling during adult pigment stripe formation in zebrafish (see the Perspective by Guilliams ...
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Pattern Dystrophy of the Retinal Pigment Epithelium

Ophthalmology, 1982
The pattern dystrophies are a group of hereditary macular dystrophies characterized by lesions of the retinal pigment epithelium (RPE) arranged in various patterns of dots, lines, and branched figures. This report of two pedigrees expands the clinical spectrum.
R C, Watzke, J C, Folk, R M, Lang
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Patterned dystrophy of the retinal pigment epithelium

Ophthalmic Paediatrics and Genetics, 1986
The authors describe a family presenting with a patterned dystrophy of the retinal pigment epithelium. The aspect of the macular area is granular to reticular with a tendency to a butterfly shape. Visual functions are normal or near-normal. A review of the literature is given.
A, Pinckers, J R, Cruysberg
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Hydroxychloroquine induced cutaneous pigmentation: a unique pattern

Postgraduate Medical Journal, 2019
An elderly woman presented with 6 months history of skin coloured to erythematous papules in annular pattern over extremities, upper back and neck. The patient was diagnosed with granuloma annulare (GA) and started on hydroxychloroquine (HCQ) 300 mg daily. After 4 months of treatment, she developed bluish grey pigmentation within the plaques of GA with
Vishal Thakur, Amit Dalla, Sheetanshu Kumar, Muthu Sendhil Kumaran, Divya Aggarwal, Bishan Dass Radotra   +5 more
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Pattern dystrophies of the retinal pigment epithelium

Clinical and Experimental Optometry, 2000
We describe a family that shows autosomal dominant pattern dystrophy of the retinal pigment epithelium. There were 10 affected family members encompassing three generations. The various manifestations of these dystrophies, their inheritance characteristics, affects on vision function and their pathogenesis are discussed.
Peter G, Swann, H Barry, Collin, Aphrodite, Livanes   +2 more
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Pattern dystrophy of the retinal pigment epithelium

International Ophthalmology, 1987
We describe six related patients presenting with an autosomal dominantly inherited pattern dystrophy of the retinal pigment epithelium, significantly abnormal electro-oculogram and minor colour vision abnormalities. There is a continuum of variable phenotypic expression within the pattern dystrophies of the retinal pigment epithelium.
K U, Duinkerke-Eerola, A, Pinckers, J R, Cruysberg   +2 more
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Origin of fish pigment cell for pattern

Science, 2014
Zebrafish adult pigment cells arise from several lineages and require thyroid hormone for pattern development.
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