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Old 08-25-2008, 12:49 PM   #11 (permalink)
 
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Re: UVA and skin conditions

Those are the current and older methods... when I said newer research I mean clinical trials that are still ongoing. Here is one:

http://clinicaltrials.gov/ct2/show/NCT00129415
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Old 08-25-2008, 01:14 PM   #12 (permalink)
 
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Re: UVA and skin conditions

ClinicalTrials.gov processed this record on August 25, 2008.....this seems to be leading toward UVA1 for several skin conditions...

Detailed Description: Ultraviolet rays from the sun that reach the earth surface are divided into shorter wavelength, hence high energy, UVB (290-320nm) and longer wavelength, hence low energy UVA (320-400nm). The wavelengths of light that cause sunburn and are associated with skin cancer causation is the high energy UVB. UVA wavelengths can be further divided into relatively shorter wavelength, hence higher energy UVA2 (320-340nm) and longer wavelength, lower energy UVA1 (340-400nm). Phototherapy light boxes used in our clinic for the treatment of psoriasis, atopic dermatitis, and pruritus, as well as those used in tanning salons emit both UVB and UVA wavelengths of light. The advantages of using UVA1 light source in the treatment of skin conditions are 1) lack of skin cancer and sunburn causing rays (UVB/UVA2) and 2) as a consequence, the ability to treat patients more safely.
Keloid, scleroderma, acne keloidalis nuchae, and burn scars are all characterized by collagenous thickening of the skin resulting in superficial and deep cutaneous sclerosis. Treatments for these disabling conditions are inadequate at present. Recently, in non-controlled studies, UVA1 was shown to induce improvement in patients with scleroderma, granuloma annulare and urticaria pigmentosa (1-3). The mode of action of UVA1 treatment is not completely understood, however, local immuno-modulation appears to be important (4). UVA1 has also been shown to stimulate collagenase activity in a dose dependent manner in the dermis (5,6). We postulate, therefore, that UVA1 in appropriate doses can improve these fibrosing skin conditions safely through collagenase-mediated removal of excess dermal collagen.
Source Link: http://clinicaltrials.gov/ct2/show/NCT00476801
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Old 08-25-2008, 01:25 PM   #13 (permalink)
 
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Re: UVA and skin conditions

another suggesting UVA1 with calcipotriol:

UVA1 phototherapy with calcipotriol could be an alternative to narrow-band UVB phototherapy with calcipotriol.

Source Link: http://www.ncbi.nlm.nih.gov/pubmed/16425972
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Old 08-25-2008, 01:25 PM   #14 (permalink)
 
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Re: UVA and skin conditions

Don't forget that going by UVB% can be misleading. Many new-era sunlamps that have 1.9% UVB have as much (or more) "actual" UVB (in mW/m^2) as a 4.0% traditional sunlamp. In addition, sunlamps like the 9K90 are "earlier onset" and work better for psoriasis than traditional lamps.

Also, if you go back and look at the early PUVA papers, they knew then that UVB alone worked as well (or better) than PUVA. They went with PUVA because the derm's could control it and they didn't know that the psoralen would prove to be carcinogenic.
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Old 08-25-2008, 01:31 PM   #15 (permalink)
 
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Re: UVA and skin conditions

Results

Of 27 patients, 24 showed a good response to localized UVA1 irradiation or cream PUVA. Dyshidrotic Area and Severity Index scores significantly decreased on both sides and were reduced to half of the pretreatment values. No statistically significant differences between localized UVA1 irradiation or cream PUVA could be detected.


SOURCE LINK:http://www.sciencedirect.com/science...847826fa88efa6
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Old 08-25-2008, 01:33 PM   #16 (permalink)
 
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Re: UVA and skin conditions

Yes, PUVA seems to just be another way to sell psoralen and keep you under extended care of a Dr.
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Old 08-25-2008, 01:55 PM   #17 (permalink)
 
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Re: UVA and skin conditions

BTW I kept meaning to photograph this lamp. This is the lamp my mother's Dr. prescribed to her 40 some years ago for psoriasis. I can get the exact age. It still works but I haven't taken a meter reading on it yet. She gave it to me when I opened the salon. :)

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Old 08-25-2008, 02:12 PM   #18 (permalink)
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Re: UVA and skin conditions

Bottom line -

In terms of simplicity for a salon owner - the most "typical" method used over the last 90 years is high UVB.

New treatments show drugs combined with specific portions of the UVA wavelength may also work (not the entire UVA spectrum).

As a salon owner - if someone asks - a higher UVB bed will probably work best, but any sort of tanning may have some impact since all beds have some UVB.

Keep It Simple
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Old 08-25-2008, 02:32 PM   #19 (permalink)
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Re: UVA and skin conditions

I have a client that find the beds I have work better than his UVB "machine" that he doctor had him purchase for $800+. He "crash tans" for about 15 days then cuts back. He has to go year round but often skips summer, hence the "crash tan" period.
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Old 08-25-2008, 03:36 PM   #20 (permalink)
 
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Re: UVA and skin conditions

My bottom line is far from simple, it's what sets me apart from most salon owners in the area IMHO. If I have a client that wants to talk and share information we've researched I'll spend an hour with them time permitting. Nothing simple about it if you're passionate about your business and the non-monetary benefits you and your clients receive from it.

I used to think mostly UVB but I happen to keep an open mind always, I'm not saying it's right or wrong but I am saying there are newer reports looking at the benefits of UVA1 not PUVA and it's my client in the medical field with this condition that got me to research it. I'm not so set in my ways that I can't see things openly.
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