Ultraviolet Radiation Exposure
Ultraviolet Radiation Exposure - Related Videos
03:20
Studying Chronic Exposure of Mice to Ultraviolet B Radiation
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Cited by 1 •
2025
The protocol describes a study of the systemic and local skin effects of Ultraviolet B exposure in mice.
07:54
Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
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Cited by 2 •
2018
Dust charging and mobilization is demonstrated in three experiments with exposure to thermal plasma with beam electrons, beam electrons only, or ultraviolet (UV) radiation only. These experiments present the advanced understanding of electrostatic dust transport and its role in shaping the surfaces of airless planetary bodies.
05:56
Scleral Cross-linking Using Riboflavin and Ultraviolet-A Radiation for Prevention of Axial Myopia in a Rabbit Model
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Cited by 27 •
2016
We demonstrate the effect of scleral crosslinking with riboflavin and UVA on an axial elongation rabbit eye. Axial elongation was induced in 13 day-old New Zealand rabbits (male and female) by suturing their right eye eyelids (tarsorrhaphy).
09:53
Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet (VUV) Synchrotron Radiation
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Cited by 7 •
2012
A molecular beam coupled to tunable vacuum ultraviolet photoionization mass spectrometer at a synchrotron provides a convenient tool to explore the electronic structure of isolated gas phase molecules and clusters. Proton transfer mechanisms in DNA base dimers were elucidated with this technique.
11:24
Measuring DNA Damage and Repair in Mouse Splenocytes After Chronic In Vivo Exposure to Very Low Doses of Beta- and Gamma-Radiation
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Cited by 3 •
2015
A protocol to evaluate changes in DNA damage levels and DNA repair capacity that may be induced by chronic in vivo low dose irradiation in mouse spleen lymphocytes, by measuring phosphorylated histone H2AX, a marker of DNA double-strand breaks, using flow cytometry is presented.
FAQs
Ultraviolet-A and ultraviolet-B penetrate the skin to different depths, so they do not affect identical tissues or trigger precisely the same responses. Both can contribute to DNA damage, oxidative stress, inflammation, and cellular repair, but penetration depth helps determine which cells are exposed. This distinction guides medical interpretation of injury and the selection of controlled phototherapy approaches.
Ultraviolet radiation outcomes depend on the combined effects of dose, wavelength, and duration rather than on exposure alone. Controlled dosing can support therapeutic effects, whereas excessive or poorly managed exposure increases the likelihood of tissue injury. These variables are therefore central to balancing clinical benefit with risks such as sunburn, photoaging, eye injury, and skin cancer.
DNA damage and oxidative stress are major initiating events, while inflammation can amplify tissue responses. Cells also activate repair mechanisms, creating a balance between injury and recovery. The resulting response depends on exposure conditions and may contribute to visible or long-term effects, including sunburn, photoaging, and increased skin cancer risk when exposure is harmful or excessive.
The same biological activity that makes ultraviolet radiation clinically useful can also produce injury. Carefully controlled exposure can alter immune activity and support treatment, while uncontrolled or excessive exposure can damage tissue. This difference reflects supervision and dose management, not simply the presence or absence of ultraviolet energy, making exposure control essential in medical decision-making.
Supervised ultraviolet phototherapy uses controlled exposure as a medical treatment rather than relying on incidental environmental exposure. The overview identifies psoriasis, vitiligo, and atopic dermatitis as conditions treated with this approach. Medical supervision is important because treatment must pursue the intended immune or skin response while limiting tissue injury associated with inappropriate dose, wavelength, or duration.
Exposure assessment should consider the amount and characteristics of ultraviolet radiation reaching the person, including dose, wavelength, and duration. Medical prevention focuses on reducing outcomes such as sunburn, photoaging, eye injury, and skin cancer. Reviewing these factors helps identify when protective measures are needed and supports safer decisions about environmental or artificial sources.
Ultraviolet radiation can influence both vitamin D production and immune activity, which helps explain its medical relevance beyond tissue injury. These effects do not eliminate the need for dose control, because the same exposure may also cause DNA damage, oxidative stress, and inflammation. Clinical use therefore requires balancing potentially beneficial biological changes against short- and long-term harm.