Results 71 to 80 of about 5,719 (219)

The Redox Properties of Polyphenols and Their Role in ROS Generation for Biomedical Applications

Angewandte Chemie, Volume 138, Issue 3, 16 January 2026.
The dual redox nature of polyphenols enables antioxidant activity and controlled reactive oxygen species (ROS) generation. This review details the biomedical applications of polyphenols in materials such as nanoparticles, coatings, and hydrogels for antimicrobial, tissue regeneration, and cancer therapies.
Jose Bolaños‐Cardet, Belén Pepió‐Tárrega, Javier Saiz‐Poseu, Alba López‐Moral, Faiz Ullah, Victor J. Yuste, Daniel Ruiz‐Molina, Salvio Suárez‐García   +7 more
wiley   +2 more sources

Eumelanin and pheomelanin pigmentation in mollusc shells may be less common than expected: insights from mass spectrometry

Frontiers in Zoology, 2019
Background The geometric patterns that adorn the shells of many phylogenetically disparate molluscan species are comprised of pigments that span the visible spectrum.
Susanne Affenzeller, Klaus Wolkenstein, Holm Frauendorf, Daniel J. Jackson   +3 more
doaj   +1 more source

Condition-dependence, pleiotropy and the handicap principle of sexual selection in melanin-based colouration. [PDF]

, 2015
The signalling function of melanin-based colouration is debated. Sexual selection theory states that ornaments should be costly to produce, maintain, wear or display to signal quality honestly to potential mates or competitors.
Roulin, A.
core   +1 more source

A Comprehensive Review of Traditional and Machine Learning‐Assisted Diffuse Optical Spectroscopy and Imaging Techniques for Dermatological Applications

Advanced Photonics Research, Volume 7, Issue 5, May 2026.
This review critically examines clinical studies on both conventional and machine learning (ML)‐integrated diffuse optical spectroscopy and imaging methods for dermatological applications, with a primary focus on the past decade and inclusion of earlier foundational work where appropriate.
Iftak Hussain, Li Xiuting, Randall Ang Jie, Keertana Vinod Ram, Mark Teo Ju Teng, Valerie Xinhui Teo, Malini Olivo, U. S. Dinish   +7 more
wiley   +1 more source

The Alpaca Melanocortin 1 Receptor: Gene Mutations, Transcripts, and Relative Levels of Expression in Ventral Skin Biopsies [PDF]

, 2015
The objectives of the present study were to characterize the MC1R gene, its transcripts and the single nucleotide polymorphisms (SNPs) associated with coat color in alpaca. Full length cDNA amplification revealed the presence of two transcripts, named as
BATHRACHALAM, CHANDRAMOHAN, LA MANNA, Vincenzo, LA TERZA, Antonietta, RENIERI, Carlo   +3 more
core   +3 more sources

Improving Melanoma Risk Stratification of Skin Color Type by Polygenic Scores of Skin Color and Melanoma

International Journal of Dermatology, Volume 65, Issue 5, Page 1007-1014, May 2026.
ABSTRACT Background The Fitzpatrick skin type (FST) is commonly used in clinical settings to stratify melanoma risk across different skin types. However, it is subjective and does not capture intra‐type variability in risk. These limitations are particularly evident among lighter‐skinned individuals, who constitute the majority of those with European ...
Huy Tran, Annabelle Ashworth, Zhuqing Shi, Jun Wei, S. Lilly Zheng, Ross M. Levy, Luzheng Liu, David Duggan, Aleksandar Sekulic, Jianfeng Xu   +9 more
wiley   +1 more source

Melanin photosensitization and the effect of visible light on epithelial cells. [PDF]

PLoS ONE, 2014
Protecting human skin from sun exposure is a complex issue that involves unclear aspects of the interaction between light and tissue. A persistent misconception is that visible light is safe for the skin, although several lines of evidence suggest ...
Orlando Chiarelli-Neto, Alan Silva Ferreira, Waleska Kerllen Martins, Christiane Pavani, Divinomar Severino, Fernanda Faião-Flores, Silvya Stuchi Maria-Engler, Eduardo Aliprandini, Glaucia R Martinez, Paolo Di Mascio, Marisa H G Medeiros, Maurício S Baptista   +11 more
doaj   +1 more source

Haplotype‐Based Analysis of OCA2 Variants in Oculocutaneous Albinism

Pigment Cell &Melanoma Research, Volume 39, Issue 3, May 2026.
This study defines multi‐allele haplotypes, comprised of rare disease variants combined with common eQTL, sQTL and GWAS variants, for oculocutaneous albinism type 2 (OCA2). These haplotypes have implications for variant pathogenicity assessments and phenotypic variability.
Meredith F. Gillis, Madeleine R. Ames, Linnea Lundh, Valer Gotea, Laura Elnitski, Frank Donovan, NISC Comparative Sequencing Program, Adebowale Adeyemo, Charles Rotimi, Brian Brooks, Wadih Zein, William Gahl, William S. Oetting, David R. Adams, Stacie K. Loftus   +14 more
wiley   +1 more source

Identification of Shell Colour Pigments in Marine Snails Clanculus pharaonius and C. margaritarius (Trochoidea; Gastropoda) [PDF]

, 2016
This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.
A Comfort, A Comfort, A Comfort, A Comfort, A Comfort, A Comfort, A Comfort, A Comfort, A Verdes, AH Church, AH Church, AJ Underwood, B Caze, C Hedegaard, C Lindstedt, CA MacMunn, CM Thompson, D. I. Speiser, DB Thomas, DI Speiser, DJ Jackson, DL Fox, DR Kobluk, F Delgado-Vargas, G Britton, GA Hendry, GD Ruxton, Geerat J. Vermeij, GS Oxford, GY Kennedy, GY Kennedy, GY Kennedy, GY Kennedy, H Fischer, H Fischer, H Zheng, J Dyck, J Hessels, J Urmos, J Waldenström, J. T. Marsden, JS Fletcher, K Konstantinidou, K Mann, K McGraw, K McGraw, K Stemmer, K Wakamatsu, K. Wakamatsu, KG Paul, L Bergamonti, L. F. C. de Oliveira, L. F. Maia, LF Maia, LN de Oliveira, LR Milgrom, M Aydin, M d'Ischia, M Niecke, M Ożgo, M Veronelli, N. P. Edwards, P Jones, PM Bertsch, PM Jordan, PM Richards, PM Townsley, R Tixier, R Tixier, R. A. Wogelius, RA Wogelius, REH Nicholas, REH Nicholas, RF Fernandes, S Ito, S Ito, S Karampelas, S Karampelas, S Lemer, S Nakayama, S. Ito, S. Strekopytov, S. T. Williams, ST Williams, ST Williams, T Henkel, T Henkel, T Henkel, T Kosaki, T Maoka, T Ogata, T. Goral, T. Henkel, T. Jeffries, TG Spiro, TK With, TP Wijesekera, TW Goodwin, VA Solé, W Barnard, Z Cai   +100 more
core   +3 more sources

How Effective Is Vitamin C for Gingival Depigmentation? A Scoping Review

Clinical and Experimental Dental Research, Volume 12, Issue 2, April 2026.
ABSTRACT Objectives Excessive gingival pigmentation can be treated by surgically removing the pigmented gingival tissue with a scalpel, bur, LASER, electrocautery, cryotherapy, chemical peeling, or masking with free gingival grafts. Recently, vitamin C (ascorbic acid), in gel, powder, or liquid has been used alone or as an adjunct to micro‐needling or ...
Shubhankar Mehrotra, Malvika Shyamkumar, Shravya Marcherla, Aditi Chopra, Marwa Madi   +4 more
wiley   +1 more source