Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice
Reexamination Certificate
2006-12-12
2006-12-12
Kim, Vickie (Department: 1618)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Cosmetic, antiperspirant, dentifrice
C424S059000, C514S725000
Reexamination Certificate
active
07147863
ABSTRACT:
UVB radiation of about 300-310 nm wavelength and UVA radiation of about 380-390 nm wavelength, each of which exists in solar light, induces MMPs (matrix metalloproteinases) in human skin that degrade the collagen of the dermal matrix. This degradation contributes to photoaging of human skin, which can be prevented by blocking these wavelengths of solar radiation. In contrast, diseases that result in the overproduction of collagen can be treated by exposing the affected with to radiation having wavelengths in those regions, for these wavelengths not only induce MMPs but also inhibit collagen biosynthesis. For lighter skinned people so affected, the UVA wavelengths are preferred because of the reduced amount of erythema, whereas dark skinned people can be treated with the UVB radiation because they generally do not suffer from erythema.
REFERENCES:
patent: 27 07 908 (1978-08-01), None
patent: 28 03 446 (1979-08-01), None
patent: 33 265 13 (1985-01-01), None
patent: 40 26 022 (1992-02-01), None
patent: 196 11 763 (1997-10-01), None
Fisher Gary J.
Kang Sewon
Voorhees John J.
Kim Vickie
Regents of the University of Michigan
Ruben Bradley N.
LandOfFree
UVA (> 360-400) and UVB (300-325) specific sunscreens does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with UVA (> 360-400) and UVB (300-325) specific sunscreens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and UVA (> 360-400) and UVB (300-325) specific sunscreens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3710080