Antimicrobial Activity of an Implantable Wireless Blue Light-Emitting Diode Against Root Canal Biofilm In Vitro

2020 ◽  
Vol 38 (11) ◽  
pp. 694-702
Author(s):  
Ludan Zhang ◽  
Yamin Li ◽  
Qian Zhang ◽  
Ning Du ◽  
Xuefen Li ◽  
...  
2005 ◽  
Vol 20 (1) ◽  
pp. 61 ◽  
Author(s):  
Yun Sil Chang ◽  
Jong Hee Hwang ◽  
Hyuk Nam Kwon ◽  
Chang Won Choi ◽  
Sun Young Ko ◽  
...  

2020 ◽  
Vol 36 (1) ◽  
pp. 99-109
Author(s):  
Phil-Sun Oh ◽  
Eun-Mi Kim ◽  
SeokTae Lim ◽  
Myung-Hee Sohn ◽  
Hwan-Jeong Jeong

Cells ◽  
2018 ◽  
Vol 7 (11) ◽  
pp. 197 ◽  
Author(s):  
Rosanna Avola ◽  
Adriana Graziano ◽  
Giovanna Pannuzzo ◽  
Venera Cardile

The development in digital screen technology has exponentially increased in the last decades, and many of today’s electronic devices use light-emitting diode (LED) technology producing very strong blue light (BL) waves. Long-term exposure at LED-BL seems to have an implication in the dehydration of the epidermis, in the alterations of shape and number of the keratinocytes, and in the aging of the skin. Aquaporins (AQPs) are water membrane channels that permeate both water and glycerol and play an important role in the hydration of epidermis, as well as in proliferation and differentiation of keratinocytes. Thus, we have hypothesized that AQPs could be involved in the aging of the skin exposed to LED-BL. Therefore, we have examined the expression of AQPs in human keratinocytes exposed to LED-BL at dose of 45 J/cm2, used as an in vitro model to produce the general features of photo aging of the skin. The aim was to verify if LED-BL induces changes of the basal levels of AQPs. The keratinocytes exposure to LED-BL produced an increase of reactive oxygen species (ROS), an activation of 8-hydroxy-2’-deoxyguanosine (8-OHdG), an alteration of proliferating cell nuclear antigen (PCNA), and a down-regulation of AQP1, 3 and 9. These findings are preliminary evidences that may be used as starting points for further investigations about the mechanistic involvement of AQP1, 3, and 9 in LED-BL-induced skin aging.


2013 ◽  
Vol 31 (11) ◽  
pp. 554-562 ◽  
Author(s):  
SangWoo Kim ◽  
JiSun Kim ◽  
WonBong Lim ◽  
SangMi Jeon ◽  
OkSu Kim ◽  
...  

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