• Publications
  • Influence
Active oxygen species generated from photoexcited fullerene (C60) as potential medicines: O2-* versus 1O2.
TLDR
The results indicate that the active oxygen species primarily responsible for photoinduced DNA cleavage by C(60) under physiological conditions are reduced species such as O(2)(-)* and *OH. Expand
Participation of reactive oxygen species in phototoxicity induced by quinolone antibacterial agents.
TLDR
The data suggested that the phototoxicity of the new quinolones was related to DNA damage caused by reactive oxygen species, especially 1O2. Expand
Comparison of Singlet Oxygen Production Efficiency of C60 with Other Photosensitizers, Based on 1268 nm Emission.
Singlet oxygen generation from laser-excited C60 was measured directly by using a sensitive near-infrared emission spectrometer to monitor the O2(1Δg)→O2(3Σg-) transition at 1268nm. The emissionExpand
Relationship between sun‐protection factor and application thickness in high‐performance sunscreen: double application of sunscreen is recommended
TLDR
The sun‐protection factor (SPF), which indicates the efficacy of UV protection, is determined using a prescribed sunscreen application thickness of 2.0 mg/cm2; in most cases, however, users apply insufficient amounts of sunscreen. Expand
SINGLET OXYGEN PRODUCTION FROM FULLERENE DERIVATIVES : EFFECT OF SEQUENTIAL FUNCTIONALIZATION OF THE FULLERENE CORE
Singlet oxygen production efficiency of several laser-excited fullerene derivatives is compared by measuring the 1268 nm emissions; the efficiency was independent of the kind of addends, but itExpand
Functional changes induced by chronic UVA irradiation to cultured human dermal fibroblasts
TLDR
It is concluded that chronic UVA irradiation of normal human fibroblasts induces cellular functional changes, leading to accelerated cellular ageing and MMP‐1 overexpression. Expand
Squalene as a target molecule in skin hyperpigmentation caused by singlet oxygen.
TLDR
It is found that topical application of squalene peroxide induced skin hyperpigmentation through increasing prostaglandin E(2) release from keratinocytes in guinea pigs, suggesting that squalenes peroxide formation by singlet oxygen plays a key role in photo-induced skin damage. Expand
Repeated irradiation with suberythemal ultraviolet B reduces the number of epidermal Langerhans cells
TLDR
It is suggested that repeated challenge with suberythemal UVB radiation, to which the authors are all exposed in daily life, can cause substantial damage to Langerhans cells. Expand
Protective Effects of an Antioxidant Derived from Serine and Vitamin B6 on Skin Photoaging in Hairless Mice¶
Abstract The generation of reactive oxygen species (ROS) by ultraviolet radiation (UVR) accelerates skin aging, which is known as photoaging. Because cutaneous iron catalyzes ROS generation,Expand
Increased levels of a particular phosphatidylcholine species in senescent human dermal fibroblasts in vitro
TLDR
Investigation of changes in the membrane phospholipid content that occur in association with aging indicates that levels of a particular species of phosphatidylcholine comprised of stearic acid and arachidonic acid increased with age, and concludes that increased levels are a result of in vitro senescence. Expand
...
1
2
3
4
...