منابع مشابه
Reactive intermediates and the dynamics of glutathione transferases.
Reactive intermediates are a continuous burden in biology and several defense mechanisms have evolved. Here we focus on the functions of glutathione transferases (GSTs) with the aim to discuss the quantitative aspects of defense against reactive intermediates. Humans excrete approximately 0.1 mmol of thioether conjugates per day. As the amount of GST active sites in liver is approximately 0.5 m...
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Abstract: Whitening cosmetics with anti-melanogenesis activity are very popular worldwide. Many companies have tried to identify novel ingredients that show anti-melanogenesis effects for new product development. Among many plant-derived compounds, polyphenols are thought to be one of the most promising anti-melanogenesis ingredients. In order to prepare effective whitening polyphenols, 3,3,4,5...
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Skin pigmentation is an important human phenotypic trait whose regulation, in spite of recent advances, has not yet been fully understood. The pigment melanin is produced in melanosomes by melanocytes in a complex process called melanogenesis. The melanocyte interacts with endocrine, immune, inflammatory and central nervous systems, and its activity is also regulated by extrinsic factors such a...
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Solar radiation induces both acute and chronic responses in the skin. Sun burn, sun tan, generation of reactive oxygen species and immunosuppression are acute responses. Wrinkles, lentigines, post-inflammatory pigmentation are chronic damages. According to one study done in Japan, it was found out that the annual ultraviolet dose received by people living in Kagoshima was 1.6 times higher than ...
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Melanocytes are melanin-producing cells found in skin, hair follicles, eyes, inner ear, bones, heart and brain of humans. They arise from pluripotent neural crest cells and differentiate in response to a complex network of interacting regulatory pathways. Melanins are pigment molecules that are endogenously synthesized by melanocytes. The light absorption of melanin in skin and hair leads to ph...
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ژورنال
عنوان ژورنال: Journal of Investigative Dermatology
سال: 1993
ISSN: 0022-202X
DOI: 10.1038/jid.1993.70