Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=28392641
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\28392641
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Ann+Dermatol
2017 ; 29
(2
): 149-155
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Low-Level Light Therapy with 410 nm Light Emitting Diode Suppresses Collagen
Synthesis in Human Keloid Fibroblasts: An In Vitro Study
#MMPMID28392641
Lee HS
; Jung SE
; Kim SK
; Kim YS
; Sohn S
; Kim YC
Ann Dermatol
2017[Apr]; 29
(2
): 149-155
PMID28392641
show ga
BACKGROUND: Keloids are characterized by excessive collagen deposition in the
dermis, in which transforming growth factor ? (TGF-?)/Smad signaling plays an
important role. Low-level light therapy (LLLT) is reported as effective in
preventing keloids in clinical reports, recently. To date, studies investigating
the effect of LLLT on keloid fibroblasts are extremely rare. OBJECTIVE: We
investigated the effect of LLLT with blue (410 nm), red (630 nm), and infrared
(830 nm) light on the collagen synthesis in keloid fibroblasts. METHODS: Keloid
fibroblasts were isolated from keloid-revision surgery samples and irradiated
using 410-, 630-, 830-nm light emitting diode twice, with a 24-hour interval at
10 J/cm(2). After irradiation, cells were incubated for 24 and 48 hours and
real-time quantitative reverse transcription polymerase chain reaction was
performed. Western blot analysis was also performed in 48 hours after last
irradiation. The genes and proteins of collagen type I, TGF-?1, Smad3, and Smad7
were analyzed. RESULTS: We observed no statistically significant change in the
viability of keloid fibroblasts after irradiation. Collagen type I was the only
gene whose expression significantly decreased after irradiation at 410 nm when
compared to the non-irradiated control. Western blot analysis showed that LLLT at
410 nm lowered the protein levels of collagen type I compared to the control.
CONCLUSION: LLLT at 410 nm decreased the expression of collagen type I in keloid
fibroblasts and might be effective in preventing keloid formation in their
initial stage.