Results 201 to 210 of about 27,981 (253)
Site‐Resolved Gingival Microcirculation and Colour Features in Health and Early Inflammation
Journal of Clinical Periodontology, EarlyView.ABSTRACT Aim To characterise site‐level gingival microcirculation in health and early inflammation without clinical attachment loss (CAL), and to evaluate its relationship with probing‐derived clinical parameters and scan‐derived gingival colour metrics.
Mengning Bi +7 more
wiley +1 more source
ACS Nano, 2022 Melanin is a natural pigment that is widely distributed in many parts of the human body, such as the skin and retinal pigment epithelium (RPE) in eyes.
Alice Yang Zhang +2 more
exaly +2 more sources
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International Journal of Biochemistry and Cell Biology, 1997
Melanin is an irregular light-absorbing polymer containing indoles and other intermediate products derived from the oxidation of tyrosine. Melanin is widely dispersed in the animal and plant kingdoms. It is the major pigment present in the surface structures of vertebrates.
P A Riley, P A Riley
exaly +3 more sources
Melanin is an irregular light-absorbing polymer containing indoles and other intermediate products derived from the oxidation of tyrosine. Melanin is widely dispersed in the animal and plant kingdoms. It is the major pigment present in the surface structures of vertebrates.
P A Riley, P A Riley
exaly +3 more sources
Current Opinion in Infectious Diseases, 2003
Production of melanin has been associated with virulence in diverse microorganisms. Melanization of fungi has been noted for many years in predominantly subcutaneous infections such as chromoblastomycosis and more recently most extensively studied in a yeast causing systemic infection, Cryptococcus neoformans. Pigmented fungi are increasingly important
Beatriz L, Gómez, Joshua D, Nosanchuk
openaire +2 more sources
Production of melanin has been associated with virulence in diverse microorganisms. Melanization of fungi has been noted for many years in predominantly subcutaneous infections such as chromoblastomycosis and more recently most extensively studied in a yeast causing systemic infection, Cryptococcus neoformans. Pigmented fungi are increasingly important
Beatriz L, Gómez, Joshua D, Nosanchuk
openaire +2 more sources
Interactions of Melanin With Electromagnetic Radiation: From Fundamentals to Applications
Chemical ReviewsMelanin, especially integumentary melanin, interacts in numerous ways with electromagnetic radiation, leading to a set of critical functions, including radiation protection, UV-protection, pigmentary and structural color productions, and thermoregulation.
Nathan C. Gianneschi +2 more
exaly +2 more sources
Nature, 1964
AQUEOUS systems were reported earlier in which a manganese-phenothiazine auto-oxidation led to the emergence of semiquinone free-radicals of the drugs1. The mildness of the required conditions permitted the postulation that this interaction might be relevant to the pharmacological action of these agents2.
G C, COTZIAS +2 more
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AQUEOUS systems were reported earlier in which a manganese-phenothiazine auto-oxidation led to the emergence of semiquinone free-radicals of the drugs1. The mildness of the required conditions permitted the postulation that this interaction might be relevant to the pharmacological action of these agents2.
G C, COTZIAS +2 more
openaire +2 more sources
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1983
An overview of the melanins and lipofuscin is presented, taking an integrating account of their morphological relationships and chemical characteristics wherever possible. This has required inclusion of the ommochromes, the schlerotizing process, and consideration of related neurotransmitters. A number of questions are raised and commented upon.
M H, Hack, F M, Helmy
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An overview of the melanins and lipofuscin is presented, taking an integrating account of their morphological relationships and chemical characteristics wherever possible. This has required inclusion of the ommochromes, the schlerotizing process, and consideration of related neurotransmitters. A number of questions are raised and commented upon.
M H, Hack, F M, Helmy
openaire +2 more sources
Nature, 1947
IT has been suggested recently1 that 5 : 6: 5â:6â-tetrahydroxy-indigo (I), or a quinone or semi-quinone derived from it, is an important constituent of melanin, the black pigment produced by the oxidation of tyrosine and 3 : 4-dihydroxyphenylalanine2.
J, HARLEY-MASON, G R, CLEMO, J, WEISS
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IT has been suggested recently1 that 5 : 6: 5â:6â-tetrahydroxy-indigo (I), or a quinone or semi-quinone derived from it, is an important constituent of melanin, the black pigment produced by the oxidation of tyrosine and 3 : 4-dihydroxyphenylalanine2.
J, HARLEY-MASON, G R, CLEMO, J, WEISS
openaire +2 more sources
Archives of Dermatology, 1986
To the Editor.— Good theories should give way to better theories, and even good theories may become untenable as new information is discovered. Periodic questioning of dogma is a useful way to reevaluate dogma, lest we be complacent with obsolete conclusions. The article by Warwick L.
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To the Editor.— Good theories should give way to better theories, and even good theories may become untenable as new information is discovered. Periodic questioning of dogma is a useful way to reevaluate dogma, lest we be complacent with obsolete conclusions. The article by Warwick L.
openaire +2 more sources
New England Journal of Medicine, 1961
T B, FITZPATRICK, M, SEIJI, A D, McGUGAN
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T B, FITZPATRICK, M, SEIJI, A D, McGUGAN
openaire +3 more sources