Abstract
Being the most superficial organ, skin is constantly exposed to various insults in the surrounding majorly including ultraviolet rays (UVR), air pollutants, heavy metals, and cigarette smoke. Additionally, chemical ingredients in most of the cosmetic and dermatological products applied on the skin for its maintenance and protection negatively impact by contributing in the process of degeneration of skin cells. These exogenous factors further enhance the release of reactive oxygen species (ROS) triggering the activation of matrix metalloproteinases (MMPs) and inflammatory responses, hence damaging the extracellular matrix (ECM) components by stimulating skin aging through intrinsic factors. Certain UVR-sensitive genes also get activated by ROS, resulting in DNA damage and with compromised repair pathway, the cell undergoes the process of apoptosis. The alterations a cell undergoes after being exposed to environmental toxins contribute in its morphological and physiological deterioration resulting in dark spots, wrinkles, decreased elasticity, and dryness: characterizing aged skin. The present chapter discusses some of the major environmental pollutants and chemicals which influence the process of accelerated skin aging.
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Abbreviations
- ECM:
-
Extracellular matrix
- HRT:
-
Hormone replacement therapy
- IR:
-
Infra –red radiation
- MMP:
-
Matrix metalloproteinases
- MMP-1:
-
Matrix metalloproteinase-1
- MWF:
-
Metal working fluids
- NO:
-
Nitrogen oxide
- PAH:
-
Poly-aromatic hydrocarbons
- PM:
-
Particulate matter
- RNS:
-
Reactive nitrogen species
- RNS:
-
Reactive nitrogen species
- ROS:
-
Reactive oxygen species
- ROS:
-
Reactive oxygen species
- TCDD:
-
2,3 7, 8-tetrachlorodibenzo-p-dioxin
- UV:
-
Ultraviolet radiation
- UVR:
-
Ultraviolet radiation
- VOC:
-
Volatile organic compounds
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Ahuja, A., Singh, N., Gupta, P., Mishra, S., Rani, V. (2017). Influence of Exogenous Factors on Skin Aging. In: Farage, M., Miller, K., Maibach, H. (eds) Textbook of Aging Skin. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-47398-6_173
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DOI: https://doi.org/10.1007/978-3-662-47398-6_173
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