Results 51 to 60 of about 1,642,164 (380)

Conflict between background matching and social signalling in a colour-changing freshwater fish [PDF]

open access: yes, 2016
The ability to change coloration allows animals to modify their patterning to suit a specific function. Many freshwater fishes, for example, can appear cryptic by altering the dispersion of melanin pigment in the skin to match the visual background ...
Kelley, Jennifer L.   +2 more
core   +2 more sources

The evolution of skin pigmentation associated variation in West Eurasia

open access: yesbioRxiv, 2020
Skin pigmentation is a classic example of a polygenic trait that has experienced directional selection in humans. Genome-wide association studies have identified well over a hundred pigmentation-associated loci, and genomic scans in present-day and ...
Dan Ju, I. Mathieson
semanticscholar   +2 more sources

Gingival Pigmentation Pattern in Correlation to Skin Color in a Group of Kurdish People in Sulaimani City

open access: yesمجله كليه طب الكندي, 2022
Background: Melanin pigmentation of the gingiva appears in all ethnicities. Excessive pigmentation is an esthetic concern that has increased awareness about depigmentation procedures.
Soma Amin, Shokhan H. Azeez
doaj   +1 more source

The correlation of skin color and gingival pigmentation patterns in a group of South Indians in Tamil Nadu, India

open access: yesSRM Journal of Research in Dental Sciences, 2013
Background: Melanin pigmentation of the gingiva occurs in all ethnicities. Excessive pigmentation is an esthetic concern that has increased awareness about depigmentation procedures.
Deepa Ponnaiyan, L Gomathy, J A Anusha
doaj   +1 more source

Visible Light Induces Melanogenesis in Human Skin through a Photoadaptive Response. [PDF]

open access: yesPLoS ONE, 2015
Visible light (400-700 nm) lies outside of the spectral range of what photobiologists define as deleterious radiation and as a result few studies have studied the effects of visible light range of wavelengths on skin.
Manpreet Randhawa   +5 more
doaj   +1 more source

Skin pigmentation and its control: From ultraviolet radiation to stem cells

open access: yesExperimental Dermatology, 2020
In the light of substantial discoveries in epithelial and hair pigmentation pathophysiology, this review summarizes the current understanding of skin pigmentation mechanisms. Melanocytes are pigment‐producing cells, and their key regulating transcription
J. M. Yardman-Frank, D. Fisher
semanticscholar   +1 more source

Association of MC1R Variants and host phenotypes with melanoma risk in CDKN2A mutation carriers: a GenoMEL study [PDF]

open access: yes, 2010
<p><b>Background</b> Carrying the cyclin-dependent kinase inhibitor 2A (CDKN2A) germline mutations is associated with a high risk for melanoma. Penetrance of CDKN2A mutations is modified by pigmentation characteristics, nevus phenotypes,
Affleck, P   +155 more
core   +2 more sources

Mucocutaneous manifestations and nail changes in patients with end-stage renal disease on hemodialysis. [PDF]

open access: yes, 2013
Mucocutaneous manifestations are common among patients on hemodialysis (HD). This study was undertaken to determine the prevalence of mucocutaneous manifestations in patients with end-stage renal disease (ESRD) who are on HD.
Azarhoosh, R.   +7 more
core   +2 more sources

Developmental toxicity of bisphenol A diglycidyl ether (epoxide resin badge) during the early life cycle of a native amphibian species [PDF]

open access: yes, 2016
Bisphenol A diglycidyl ether (BADGE) is used in packaging materials, in epoxy adhesives, and as an additive for plastics, but it is also a potential industrial wastewater contaminant.
Andersen   +31 more
core   +1 more source

Transplantable melanomas in hamsters and gerbils as models for human melanoma : sensitization in melanoma radiotherapy : from animal models to clinical trials [PDF]

open access: yes, 2018
The focus of the present review is to investigate the role of melanin in the radioprotection of melanoma and attempts to sensitize tumors to radiation by inhibiting melanogenesis. Early studies showed radical scavenging, oxygen consumption and adsorption
Andrzej Słominski   +11 more
core   +1 more source

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