Results 31 to 40 of about 1,642,164 (380)

Diversified Stimuli-Induced Inflammatory Pathways Cause Skin Pigmentation

International Journal of Molecular Sciences, 2021
The production of melanin pigments by melanocytes and their quantity, quality, and distribution play a decisive role in determining human skin, eye, and hair color, and protect the skin from adverse effects of ultraviolet radiation (UVR) and oxidative ...
Md Razib Hossain, Tuba M Ansary, M. Komine, M. Ohtsuki   +3 more
semanticscholar   +1 more source

A Mixture of Topical Forms of Polydeoxyribonucleotide, Vitamin C, and Niacinamide Attenuated Skin Pigmentation and Increased Skin Elasticity by Modulating Nuclear Factor Erythroid 2-like 2

Molecules, 2022
It is well-known that increased oxidative stress caused by ultraviolet B (UV-B) radiation induces melanogenesis and activates metalloproteinases (MMPs), which degrade collagen and elastin fibers, leading to decreased skin elasticity.
Hyoung Moon Kim, Kyung-A Byun, Seyeon Oh, Jin Young Yang, H. Park, M. S. Chung, Kukhui Son, Kyung-A Byun   +7 more
semanticscholar   +1 more source

Genetic adaptation of skin pigmentation in highland Tibetans

Proceedings of the National Academy of Sciences of the United States of America, 2022
Significance The Qinghai-Tibetan Plateau represents one of the most extreme environments for human habitation. Tibetans are an ideal population for studying genetic adaptation to such environment.
Zhaohui Yang, Cai-juan Bai, Youwei Pu, Q. Kong, Yongbo Guo, X. Liu, Qi Zhao, Zhichao Qiu, Wangshan Zheng, Yaoxi He, Yihan Lin, Lian Deng, Chao Zhang, Shuhua Xu, Yi Peng, Kun Xiang, Xiaoming Zhang, Chao-ying Cui, Yongyue Pan, Jingxue Xin, Yong Wang, Shiming Liu, Liangbang Wang, Hengliang Guo, Zhenzhen Feng, Shaobo Wang, Hong Shi, Bing-Hua Jiang, Tianyi Wu, X. Qi, Bing Su   +30 more
semanticscholar   +1 more source

The effect of constitutive pigmentation on the measured emissivity of human skin.

PLoS ONE, 2020
BackgroundThe measurement of body temperature has become commonplace in the current COVID-19 pandemic. Body temperature can be measured using thermal infrared imaging, a safe, non-contact method that relies on the emissivity of the skin being known to ...
Matthew Charlton, Sophie A Stanley, Zoë Whitman, Victoria Wenn, Timothy J Coats, Mark Sims, Jonathan P Thompson   +6 more
doaj   +1 more source

Shining Light on Autophagy in Skin Pigmentation and Pigmentary Disorders

Cells, 2022
Autophagy is a vital process for cell survival and it preserves homeostasis by recycling or disassembling unnecessary or dysfunctional cellular constituents.
D. Kovacs, G. Cardinali, M. Picardo, E. Bastonini   +3 more
semanticscholar   +1 more source

By protecting against cutaneous inflammation, epidermal pigmentation provided an additional advantage for ancestral humans. [PDF]

, 2019
Pigmentation evolved in ancestral humans to protect against toxic, ultraviolet B irradiation, but the question remains: "what is being protected?" Because humans with dark pigmentation display a suite of superior epidermal functions in comparison with ...
Abuabara, Katrina, Elias, Peter M, Lee, Chih-Hung, Lin, Tzu-Kai, Man, Mao-Qiang, Sheu, Hamm-Ming, Tsai, Jui-Chen, Wakefield, Joan S   +7 more
core   +1 more source

Understanding pseudo-albinism in sole (Solea senegalensis): a transcriptomics and metagenomics approach [PDF]

, 2019
Pseudo-albinism is a pigmentation disorder observed in flatfish aquaculture with a complex, multi-factor aetiology. We tested the hypothesis that pigmentation abnormalities are an overt signal of more generalised modifications in tissue structure and ...
Carballo, Carlos, Codoñer, Francisco M., Costa, Rita A., Guerreiro, Claudia, Manchado, Manuel, Martinez-Blanch, Juan F., Pinto, Patricia IS, Power, Deborah   +7 more
core   +1 more source

Cellular and ultrastructural characterization of the grey-morph phenotype in southern right whales (Eubalaena australis) [PDF]

, 2017
Southern right whales (SRWs, Eubalena australis) are polymorphic for an X-linked pigmentation pattern known as grey morphism. Most SRWs have completely black skin with white patches on their bellies and occasionally on their backs; these patches remain ...
Campbell, M. S., Cassidy, P. B., Chirife, A., Clayton, F. C., Eroh, G. D., Florell, S. R., Leachman, S. A., Maron, C. F., Rowntree, V. J., Seger, J., Valenzuela, L. O.   +10 more
core   +6 more sources

Assessment of Gingival, Lip and Skin Pigmentation and its Association with Willingness towards Depigmentation among South Indian Female Population: A Cross-sectional Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Facial appearance depends on various factors, including both intraoral and extraoral features. The association between skin pigmentation and gingival pigmentation has been previously established. Severe gingival pigmentation remains
Smriti Dharuman, Rakavi Ravindran, Vaishali Esvantharao, Snega Thamilselvan, Agalya Sivakumar   +4 more
doaj   +1 more source

Key regulatory role of dermal fibroblasts in pigmentation as demonstrated using a reconstructed skin model: impact of photo-aging. [PDF]

PLoS ONE, 2014
To study cutaneous pigmentation in a physiological context, we have previously developed a functional pigmented reconstructed skin model composed of a melanocyte-containing epidermis grown on a dermal equivalent comprising living fibroblasts. The present
Christine Duval, Catherine Cohen, Corinne Chagnoleau, Virginie Flouret, Emilie Bourreau, Françoise Bernerd   +5 more
doaj   +1 more source