Results 21 to 30 of about 169,076 (377)

Constitution of Melanin [PDF]

open access: yesNature, 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
openaire   +2 more sources

Genome-wide association analysis reveal the genetic reasons affect melanin spot accumulation in beak skin of ducks

open access: yesBMC Genomics, 2022
Background Skin pigmentation is a broadly appearing phenomenon of most animals and humans in nature. Here we used a bird model to investigate why melanin spot deposits on the skin.
Hehe Liu   +14 more
doaj   +1 more source

Identification of Melanin in the Mantle of the Pacific Oyster Crassostrea gigas

open access: yesFrontiers in Marine Science, 2022
The Pacific oyster, Crassostrea gigas, is widely distributed and is substantially important to shellfish cultivation. Oysters with melanin-colored shells and soft parts are increasingly popular and are of high economic value.
Yijing Han   +10 more
doaj   +1 more source

Melanin‐Like Nanomaterials for Advanced Biomedical Applications: A Versatile Platform with Extraordinary Promise

open access: yesAdvancement of science, 2020
Developing efficient, sustainable, and biocompatible high‐tech nanoplatforms derived from naturally existing components in living organisms is highly beneficial for diverse advanced biomedical applications.
Heng Liu   +7 more
semanticscholar   +1 more source

Fungal Melanin and the Mammalian Immune System

open access: yesJournal of Fungi, 2021
Melanins are ubiquitous complex polymers that are commonly known in humans to cause pigmentation of our skin. Melanins are also present in bacteria, fungi, and helminths.
Sichen Liu   +3 more
semanticscholar   +1 more source

Microbial production of melanin and its various applications

open access: yesWorld Journal of Microbiology & Biotechnology, 2020
Melanins are natural biopolymers that are known to contribute to different biological processes and to protect organisms from adverse environmental conditions.
Anh N Tran-Ly   +3 more
semanticscholar   +1 more source

Flavonoids increase melanin production and reduce proliferation, migration and invasion of melanoma cells by blocking endolysosomal/melanosomal TPC2

open access: yesScientific Reports, 2021
Two-pore channel 2 (TPC2) resides in endolysosomal membranes but also in lysosome-related organelles such as the melanin producing melanosomes. Gain-of-function polymorphisms in hTPC2 are associated with decreased melanin production and blond hair color.
Ponsawan Netcharoensirisuk   +14 more
semanticscholar   +1 more source

Interaction of Melanin with Metal Ions Modulates Their Cytotoxic Potential

open access: yesApplied Magnetic Resonance, 2021
Melanin is one the most common biological pigments. In humans, specialized cells called melanocytes synthesize the pigment from tyrosine and 3,4-dihydroxyphenylalanine via enzyme-catalyzed reactions and spontaneous processes.
T. Sarna, H. Swartz, A. Żądło
semanticscholar   +1 more source

Melanin Chemistry and Melanin Precursors in Melanoma

open access: yesJournal of Investigative Dermatology, 1989
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Kazumasa Wakamatsu, Shosuke Ito
openaire   +3 more sources

SPECTRAL PROPERTIES OF TWO WATER-SOLUBLE MELANINS [PDF]

open access: yesBiotechnologia Acta
Aim. The work was purposed to study the spectral properties of two types of water-soluble melanins to clarify the nature of the optical absorption and emission centers in them. Materials and methods.
V.M. Kravchenko   +8 more
doaj   +1 more source

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