Results 71 to 80 of about 2,749 (174)

ASIP Variants in Livestock: It's Not Black and White

Animal Genetics, Volume 57, Issue 3, June 2026.
ABSTRACT Fur and feather pigmentation play an important role in the survival and reproduction of many species, as well as in selective breeding and agriculture. The synthesis of pigment molecules, eumelanin and pheomelanin, is partially regulated by the agouti signalling protein (ASIP) encoded by the ASIP gene.
Isabella M. Brown, Kylie A. Munyard
wiley   +1 more source

Quantitative variation of melanins in alpaca (Lama pacos L.)

Italian Journal of Animal Science, 2011
The amount of melanin pigments was investigated in 95 Peruvian alpaca, representative of six different fleece colours, by means of spectrophotometric assays: SpEM (Spectrophoto­metric Eumelanin), SpPM (Spectrophotometric Pheomelanin), SpASM ...
Marco Antonini, Carlo Renieri, Martin Gonzales, Paolo Passamonti, Alessandro Valbonesi, Teresa Cecchi   +5 more
doaj   +1 more source

Interaction between the melanocortin 1 receptor (MC1R) and agouti signalling protein genes (ASIP), and their association with black and brown coat colour phenotypes in peruvian alpaca

Italian Journal of Animal Science, 2020
The aim of this work was to assess the interaction between MC1R and ASIP genes in determining coat colour variation in black and brown Peruvian alpacas. Skin biopsies were collected from 25 black alpacas and 15 brown alpacas.
Stefano Pallotti, Bathrachalam Chandramohan, Dario Pediconi, Cristina Nocelli, Antonietta La Terza, Carlo Renieri   +5 more
doaj   +1 more source

Morphological properties of hair and their variation when subjected to oxidation via chemical bleaching

Fields, 2020
Four key morphological properties of hair were investigated in order to understand their variation in response to oxidation of the strand via bleaching. These were hair diameter, cuticle damage, porosity and fluorescence.
Raeesah Ismat Saddiq
doaj   +2 more sources

Evolutionary Origin of Ocular Melanoma: Associations With rs12913832 G Allele Frequency and Latitude

Cancer Medicine, Volume 15, Issue 6, June 2026.
The rs12913832 derived (G) allele frequency (blue‐eye allele) was a markedly stronger predictor of ocular melanoma incidence than geographic latitude, with approximately 92% of the latitude effect mediated through allele frequency. These findings indicate that pigmentation‐related genetic variation contributes substantially to global differences in ...
Hans Witzenhausen, Hildur Helgadottir, Veronica Höiom, Roger Olofsson Bagge, Gustav Stålhammar   +4 more
wiley   +1 more source

In Vivo and In Vitro Evaluation of PTeCA (1H‐Pyrrole‐2,3,4,5‐Tetracarboxylic Acid) in Hair Matrix as a Marker for Oxidative Cosmetic Treatment

Drug Testing and Analysis, Volume 18, Issue 6, Page 739-749, June 2026.
A total of 3378 self‐reported treated and untreated hair samples were analyzed for PTCA and PTeCA by LC‐MS/MS. Moreover, their in vitro formation was assessed in 225 untreated hair by different cosmetic treatments with and without oxidative agents. Data suggest that PTeCA could be a reliable marker for oxidative cosmetic treatments in hair.
Sara Casati, Alessandro Ravelli, Roberta F. Bergamaschi, Agata Magliocco, Sofia Vanerio, Gabriella Roda, Paola Rota, Marica Orioli, Alessio Battistini   +8 more
wiley   +1 more source

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

Academia 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, Xianguang Zhang, Yigeng Meng, Xiaohui Bai, Xiaolian Liu, Lin Ma, Huimin Wu, Jufeng Jiang   +7 more
doaj   +1 more source

Raman Spectroscopic Analysis of H2O2-Stimulated Three-Dimensional Human Skin Models Containing Asian, Black, and Caucasian Melanocytes

Journal of Spectroscopy, 2013
Reactive oxygen species generated in dermal cells of human skin is related to skin disorders or diseases. In this study, Raman analysis effectively clarified the identities of three types of human skin models after the models were stimulated with ...
Shin-ichi Morita, Sota Takanezawa, Akira Date, Shin Watanabe, Yasushi Sako   +4 more
doaj   +1 more source

Integrative Advances in Equine Genomics From Reference Assemblies to Evolutionary History and Key Traits

Evolutionary Applications, Volume 19, Issue 6, June 2026.
ABSTRACT Horses are major domestic animals and cultural symbols that have accompanied humans for millennia. They underpin transport, agriculture, warfare and sport, and also provide a model for studying domestication, complex traits and adaptive evolution.
Ying Lu, Ruoshan Ma, Bo Wang, Jiao Wu, Yuqing Chong, Zhendong Gao, Weidong Deng   +6 more
wiley   +1 more source

Skin Boosters: 2026 Updated

Journal of Cosmetic Dermatology, Volume 25, Issue 6, June 2026.
ABSTRACT Skin boosters are increasingly used to improve dermal quality through injectable and device‐assisted approaches; however, definitions and clinical evidence remain heterogeneous. Aims To provide an updated overview and propose a practical classification of skin boosters, including mechanisms, delivery methods, clinical outcomes, and limitations.
Kyu‐ho Yi, Hyunggyu Kang, Jong Keun Song, Olena Sydorchuk, Jeremy B. Green, Hugues Cartier, Roya Zarmehr Zamin, Benjamin Ascher   +7 more
wiley   +1 more source