Results 31 to 40 of about 80,543 (306)

Fruit over sunbed : carotenoid skin coloration is found more attractive than melanin coloration [PDF]

, 2015
Skin coloration appears to play a pivotal part in facial attractiveness. Skin yellowness contributes to an attractive appearance and is influenced both by dietary carotenoids and by melanin.
Perrett, David I, Lefevre, Carmen E
core   +1 more source

Melanin levels in relation to vitamin D among first-generation immigrants from different ethnic groups and origins: A comparative national Canadian cross-sectional study

Frontiers in Medicine, 2023
IntroductionImmigrants to Western countries tend to have darker skin than native-born populations. We examined the relationship between skin melanin and serum vitamin D (vitD) [S-25(OH)D] levels and explored whether melanin levels explained S-25(OH)D ...
Said Yousef, Said Yousef, Manny Papadimitropoulos, Manny Papadimitropoulos, MoezAlIslam Faris, Hayder Hasan, Alomgir Hossain, Alomgir Hossain, Ian Colman, Douglas Manuel, Douglas Manuel, Douglas Manuel, George A. Wells, George A. Wells   +13 more
doaj   +1 more source

Amino acid modification and structural characterization of Auricularia heimuer melanin [PDF]

Zhongguo niangzao
In order to improve the solubility of Auricularia heimuer melanin, amino acid modification was performed on the melanin extracted from the fermentation broth of A. heimuer. The structure of amino acid melanin with better modification effects was selected
YAO Xiuge, GUO Yan, HAN Chuang, TIAN Shuang, ZHU Jianan, ZHANG Xiaojia, YIN Bo, MA Yinpeng
doaj   +1 more source

Photodynamics of Melanin Radicals: Contribution to Photoprotection by Melanin^†

Photochemistry and Photobiology, 2022
AbstractThe mechanism of very efficient relaxation of the melanin‐photoexcited states, responsible for the photoprotective action of the pigment, remains a subject for intense investigation. The most recent study by C. Grieco, F. Kohl, and B. Kohler, entitled “Ultrafast radical photogeneration pathways in eumelanin,” addresses key issues of melanin ...
openaire   +3 more sources

A histochemical study on the distribution of melanin in human oral epithelium at six regional sites [PDF]

, 1991
Oral mucosa from six sites in 95 autopsies was tested for melanin using the Masson-Fontana silver reduction method. Melanin was detected in 51.6% of labial, 46.3% of palatal, 45.3% of buccal, 28.4% of mandibular gingival, 25.3% of lingual and 21.1% of ...
Barrett, A. W., Beynon, A. D.
core   +1 more source

Melanin Medics: lessons from a community-led organization addressing inequities in medical education

Frontiers in Medicine
Inequities in health professions education, including differential attainment, racism, and barriers to widening participation, continue to disproportionately affect students from racially-minoritised and underrepresented backgrounds. While there has been
Olamide Oguntimehin, Olamide Oguntimehin, Oyinda Adeniyi, Temidayo Osunronbi, Temidayo Osunronbi, Ayomide Ayorinde, Ellen Nelson-Rowe, Ellen Nelson-Rowe, Nadia Ibrahim, Khadija Owusu, Ife Akano-Williams, Simisola Sodeinde, Simisola Sodeinde   +12 more
doaj   +1 more source

Solubility of Melanins [PDF]

Nature, 1952
IN further attempts to find a solvent for melanin which would be of use in histological work, the following substances have been found to dissolve, in the cold, the pigments extracted from the ink sac of Sepia officinalis and melanoma tissue, and those prepared from adrenaline and 3,4-dihydroxyphenylalanine (dopa): ethylene glycol monomethyl ether ...
openaire   +2 more sources

Melanin-Inspired Composite Materials: From Nanoarchitectonics to Applications [PDF]

Synthetic melanin is a mimic of natural melanin analogue with intriguing properties such as metal–ion chelation, redox activity, adhesion, and broadband absorption.
Ran Ding (396326), Jiaxin Yuan (9768134), Xicheng Zhang (11013939), Yijun Xie (1793497), Xiaoyong Deng (8862206), Shang Liu (544514), Zhao Wang (145195)   +6 more
core   +1 more source

Melanin ‘dust’ or ‘ghost’? [PDF]

Experimental Dermatology, 2016
To definitely verify the dogma of ‘melanin dust’ in the stratum corneum, Tobin et al have now reported a careful review of the literature with a vis-à-vis of the Fontana Masson (FM) and Von Kossa (VK) histochemical methods plus the Warthin-Starry (WS) stain on very thin cryosections of normal human skin and mouse pelage skin epidermis lacking ...
D'ISCHIA, MARCO, NAPOLITANO, ALESSANDRA, Michalczyk Wetula, Dominika, Przemysław M. , Plonka   +3 more
openaire   +5 more sources

In silico and in vitro exploration of a tyrosinase for biocatalytic production of catechols

FEBS Open Bio, EarlyView.
Tyrosinase from Ralstonia pseudosolanacearum is a promising biocatalyst for producing valuable catechols from monophenol substrates. This tyrosinase is uniquely suited to this due to its high monophenolase : diphenolase ratio. We combined in silico docking and in vivo kinetic characterisation of this tyrosinase with 11 industrially relevant monophenols,
James Britton, Fang Zhao, Reeta Davis, Meg Walsh, Kevin E O'Connor, David O'Connell, Tanja Narancic   +6 more
wiley   +1 more source