Results 91 to 100 of about 5,719 (219)

QUILPEN Provides Independent and Label‐Free Single‐Cell Quantification of Pigmentation Dynamics and Organelle Content

open access: yesPigment Cell &Melanoma Research, Volume 39, Issue 2, March 2026.
Pigment‐associated cellular features, such as melanin levels and organelles, can be quantified in live cells with label‐free multimodal imaging. Quantitative phase imaging (cyan) measures cell mass, scattering (yellow) reports organelle content, including melanosomes, and absorbance imaging (magenta) captures pigment such as melanin.
Rebecca G. Zitnay   +8 more
wiley   +1 more source

Melanin pathway genes drive skin color divergence in juvenile blood parrot cichlid hybrids

open access: yesAcademia Molecular Biology and Genomics
The blood parrot cichlid (Cichlasoma citrinellum × C. synspilum), a hybrid of two distinct cichlid fish, is a popular ornamental fish. Its red appearance, achieved through its initial black coloration fading three weeks after hatching, is a ...
Chunyan Li   +7 more
doaj   +1 more source

The Effect of Hair Color on the Incorporation of Codeine into Human Hair [PDF]

open access: yes, 2017
The influence of melanin on the binding of xenobiotics in hair will impact the interpretation of drug concentrations determined by hair testing. The purpose of this study was to determine if codeine, as a model compound of abused drugs, would be ...
Augsburger, Marc P.   +7 more
core  

Ultrafast Molecular Spectroscopy Using a Hollow-Core Photonic Crystal Fibre Light Source [PDF]

open access: yes, 2018
We demonstrate, for the first time, the application of rare-gas filled hollow-core photonic crystal fibres (HC-PCFs) as tuneable ultraviolet light sources in femtosecond pump-probe spectroscopy.
Belli, Federico   +6 more
core   +2 more sources

Genetic Pigmentary Disorders: From Molecular Mechanisms to Clinical Manifestations

open access: yesThe Journal of Dermatology, Volume 53, Issue 2, Page 169-179, February 2026.
ABSTRACT Genetic pigmentary disorders represent a diverse group of genetic conditions characterized by alterations in melanin production and transport and melanocyte development, resulting from single‐gene pathological variants. These disorders encompass both hypopigmentary and hyperpigmentary phenotypes, affecting not only skin pigmentation but also ...
Ken Okamura, Tamio Suzuki
wiley   +1 more source

Quantitative Analysis of Eumelanin and Pheomelanin in Hair and Melanomas

open access: yesJournal of Investigative Dermatology, 1983
In this study, a method is provided for analyzing quantitatively the content and the class of melanin pigments in the tissues, e.g., hair and melanoma. The method is simple and rapid because it does not require the isolation of melanins from the tissues. The rationale was that permanganate oxidation of eumelanin yields pyrrole-2,3,5-tricarboxylic acid (
Ito, Shosuke, Jimbow, Kowichi
openaire   +2 more sources

Germline MC1R status influences somatic mutation burden in melanoma [PDF]

open access: yes, 2016
The major genetic determinants of cutaneous melanoma risk in the general population are disruptive variants (R alleles) in the melanocortin 1 receptor (MC1R) gene.
A Ozola   +45 more
core   +1 more source

????????? ?????????????????? ????????? ????????? ?????? ??????????????? ??????????????? ?????? ???????????? ?????? [PDF]

open access: yes, 2020
Department of Chemical EngineeringLignin peroxidase is promising ingredient for skin whitening cosmetics because it is capable of oxidizing melanin with high redox potential.
Sung, Ho Joon
core  

Application of Vitamin C in Melasma: A Meta‐Analysis and Systematic Review

open access: yesDermatologic Therapy, Volume 2026, Issue 1, 2026.
Melasma is a chronic acquired facial hyperpigmentation disorder that remains a persistent clinical challenge due to its high recurrence rate and lack of a definitive cure. It imposes a substantial psychological burden on affected individuals, often leading to significant impairment of health‐related quality of life.
Lincen He, Sebastian Yu
wiley   +1 more source

Pheomelanin as well as Eumelanin Is Present in Human Epidermis

open access: yesJournal of Investigative Dermatology, 1991
There are two types of melanin in mammals, the brownish black eumelanin and the reddish yellow pheomelanin. Eumelanin and pheomelanin are present in human hair and this study was carried out to see whether both pigments are also present in human epidermis.
Thody, Anthony J   +5 more
openaire   +2 more sources

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