Results 51 to 60 of about 3,468 (208)
The European Zoological JournalAnimal coat colour is determined by various factors, including the type of pigment, its quantity, the shape of pigment cells, and their distribution throughout the body.
D. Grabolus +3 more
doaj +1 more source
Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak
Animal Research and One Health, EarlyView.Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan +15 more
wiley +1 more source
Raman Spectroscopy Reveals the Presence of Both Eumelanin and Pheomelanin in the Skin of Lacertids
, 2018 R.M.-P. was supported by the fellowship BES-2010-038427 of the Spanish Ministerio de Educación.Melanic pigments play a key role in the coloration of animals, but the type of melanin pigment in black, brown, and blue colored scales of Squamata has not ...
Megia Palma, Rodrigo Manuel +5 more
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Journal of the Chinese Chemical Society, EarlyView.Model for how α‐syn modulates the positioning of endolysosomes in melanoma cells. (a) α‐syn tethers endolysosomes to the plasma membrane, a last step in anterograde transport. (b) Loss of α‐syn expression causes the loss of the tethering function, which leads to perinuclear vesicle clustering. Reproduced from the open access article.
Stephan N. Witt
wiley +1 more source
, 2020 Some organisms can modulate gene expression to trigger physiological responses that help adapt to environmental stress. The synthesis of the pigment pheomelanin in melanocytes seems to be one of these responses, as it may contribute to cellular ...
Rodríguez-Martínez, Sol +1 more
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Pheomelanin effect on UVB radiation-induced oxidation/nitration of L-tyrosine [PDF]
, 2021 Pheomelanin is a natural yellow-reddish sulfur-containing pigment derived from tyrosinase-catalyzed oxidation of tyrosine in presence of cysteine. Generally, the formation of melanin pigments is a protective response against the damaging effects of UV ...
Antonio Francioso +15 more
core +1 more source
JEADV Clinical Practice, EarlyView.ABSTRACT Oculocutaneous albinism (OCA) is a genetic disorder found worldwide, but its impact is particularly pronounced in the African continent. This results from both a higher prevalence and the persistent myths and superstitions surrounding the condition in many African communities.
Rebecca Donadoni +3 more
wiley +1 more source
Pheomelanin synthesis varies with protein food abundance in developing goshawks
, 2019 The accumulation of the amino acid cysteine in lysosomes produces toxic substances, which are avoided by a gene (CTNS) coding for a transporter that pumps cystine out of lysosomes. Melanosomes are lysosome-related organelles that synthesize melanins, the
Jorge, Alberto +3 more
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Zeta potential of pheomelanin nanoparticles as a function of concentration.
, 2022 Zeta potential of pheomelanin nanoparticles in different solvents: milli-Q water (blue), PBS (black) and PBS+EDTA (red), at 166 μg/mL.
María Antonieta Fernández-Herrera (12231646) +3 more
core +1 more source
PLoS ONE, 2019 Eumelanin and pheomelanin are well known and common pigments found in nature. However, their complex polymer structure and high thermostability complicate their direct chemical identification.
Susanne Affenzeller +4 more
doaj +1 more source