[HN Gopher] DNA damage and mutations in cells after irradiation ...
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DNA damage and mutations in cells after irradiation with a nail
polish dryer
Author : fairytalemtg
Score : 39 points
Date : 2024-02-04 17:43 UTC (5 hours ago)
(HTM) web link (www.nature.com)
(TXT) w3m dump (www.nature.com)
| pinetroey wrote:
| What about the dentist's uv gun?
| zihotki wrote:
| You usually don't visit dentist each week or two so the damage
| you'll receive there can be ignored.
| neals wrote:
| Any damage can be ignored.
| data_maan wrote:
| Isn't DNA damage lifetime accumulated?
|
| (Unrelated to the first) Even if the probability is low, say
| 0.0001, of DNA damage happening after a single dentist visit,
| that still will result in hundreds or thousands of cases of
| DNA if the population is large enough, i.e. in every larger
| city.
| 4death4 wrote:
| > DNA damage happening after a single dentist visit
|
| Your dentist uses UV after every visit?
| dekhn wrote:
| Depends where the damage is. Skin is made mostly of
| epithelial cells with a limited lifespan. Genetic damage to
| individual cells isn't lifetime- it goes away when the cell
| dies. The damage a damaged cell can do is significant,
| though.
|
| But those cells are grown from stem cells, and if they
| remain undamaged, their descendants (the brand-new
| epithelial cells making up skin) will begin their life
| already damaged.
|
| With all that said, the underlying biology of cancer is
| extremely complicated and it's hard to evaluate the impact
| of things like this. Some amount of DNA damage happens
| constantly that bodies can clear up without any real long-
| term impact.
|
| For a dentist visit, we assume that the increased benefits
| from infrequent x-rays exceed the low probability of
| cancer. I don't know about UV used in dental applications,
| though.
| m3kw9 wrote:
| Old lights use UV, newer lights which is even 10-15 years uses
| visible light 400nm plus
| thomasreggi wrote:
| I've gotten a couple gel manicures recently, it's addicting once
| you start because it lasts a long time. I'm taking a break from
| it because it makes your nails brittle. They make special gloves
| you can wear that just expose your nails, ideally I was thinking
| the same technology in 3d projection mapping could be used to
| only expose the nailbed to uv ligt with hand tracking. It would
| increase the the cost of one of these uv curing devices by
| smartifying it but would prevent cancer...
| p1mrx wrote:
| Flipping through
| https://www.google.com/search?q=photoinitiator+absorption+sp...
| suggests that some photoinitiators work with 222nm UVC light.
|
| That wavelength is currently undergoing safety testing for
| killing germs. Maybe that's a possible alternative? Penetration
| depth might be an issue, since that's what (supposedly) makes it
| safe for skin.
| yieldcrv wrote:
| time to hit all the nail salons in California to see if they have
| that disclaimer up
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