Results 21 to 30 of about 1,642,164 (380)

In vitro quantification of pigment production and transfer in 2D co-cultures and 3D skin organotypic

open access: yesSTAR Protocols, 2023
Summary: Here, we present a protocol to set up and study 2D keratinocyte-melanocyte co-cultures and 3D full-thickness human skin equivalents. We describe steps for culturing of keratinocyte and melanocyte lines and the establishment of both 2D and 3D co ...
Rachel Phua   +6 more
doaj   +1 more source

Herb Sanqi-Derived Compound K Alleviates Oxidative Stress in Cultured Human Melanocytes and Improves Oxidative-Stress-Related Leukoderma in Guinea Pigs

open access: yesCells, 2021
Sanqi, a traditional Chinese herb, is widely used for cardiovascular diseases, and its neuroprotective effects against oxidative stress were recently discovered. The purpose of this study was to investigate whether Sanqi-derived compound K (Sanqi-CK), an
Suwei Tang   +6 more
doaj   +1 more source

A review of the effect of skin pigmentation on pulse oximeter accuracy

open access: yesPhysiological Measurement, 2023
Objective. Pulse oximetry is a non-invasive optical technique used to measure arterial oxygen saturation (SpO2) in a variety of clinical settings and scenarios.
Raghda Al-Halawani   +3 more
semanticscholar   +1 more source

Perioral pigmentation

open access: yesPigment International, 2022
Perioral pigmentation is a commonly encountered condition in the skin Out Patient Department (OPD), occurring due to a variety of primary as well as secondary causes. The affection of the perioral skin being readily visible negatively impacts the patient’
Siddharth Bhatt   +2 more
doaj   +1 more source

Skin Pigmentation Influence on Pulse Oximetry Accuracy: A Systematic Review and Bibliometric Analysis

open access: yesItalian National Conference on Sensors, 2022
Nowadays, pulse oximetry has become the standard in primary and intensive care units, especially as a triage tool during the current COVID-19 pandemic.
A. M. Cabanas   +4 more
semanticscholar   +1 more source

Human Skin Pigmentation: From a Biological Feature to a Social Determinant

open access: yesHealthcare, 2023
Skin pigmentation is the most variable human characteristic that can be observed and has been used throughout history to classify humans into distinct groups.
S. Mosca, A. Morrone
semanticscholar   +1 more source

Melanin Transfer in the Epidermis: The Pursuit of Skin Pigmentation Control Mechanisms

open access: yesInternational Journal of Molecular Sciences, 2021
The mechanisms by which the pigment melanin is transferred from melanocytes and processed within keratinocytes to achieve skin pigmentation remain ill-characterized.
H. Moreiras, M. Seabra, Duarte C. Barral
semanticscholar   +1 more source

Skin Pigmentation Abnormalities and Their Possible Relationship with Skin Aging

open access: yesInternational Journal of Molecular Sciences, 2021
Skin disorders showing abnormal pigmentation are often difficult to manage because of their uncertain etiology or pathogenesis. Abnormal pigmentation is a common symptom accompanying aging skin.
Ai-Young Lee
semanticscholar   +1 more source

Evaluation of the robustness of cerebral oximetry to variations in skin pigmentation using a tissue-simulating phantom.

open access: yesBiomedical Optics Express, 2022
Clinical studies have demonstrated that epidermal pigmentation level can affect cerebral oximetry measurements. To evaluate the robustness of these devices, we have developed a phantom-based test method that includes an epidermis-simulating layer with ...
A. Afshari   +9 more
semanticscholar   +1 more source

The evolution of human skin pigmentation involved the interactions of genetic, environmental, and cultural variables

open access: yesPigment Cell & Melanoma Research, 2021
The primary biological role of human skin pigmentation is as a mediator of penetration of ultraviolet radiation (UVR) into the deep layers of skin and the cutaneous circulation. Since the origin of Homo sapiens, dark, protective constitutive pigmentation
N. Jablonski
semanticscholar   +1 more source

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