Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=27240523
&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 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 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\27240523
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Sci+Rep
2016 ; 6
(ä): 26322
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Exogenous NAD(+) decreases oxidative stress and protects H2O2-treated RPE cells
against necrotic death through the up-regulation of autophagy
#MMPMID27240523
Zhu Y
; Zhao KK
; Tong Y
; Zhou YL
; Wang YX
; Zhao PQ
; Wang ZY
Sci Rep
2016[May]; 6
(ä): 26322
PMID27240523
show ga
Increased oxidative stress, which can lead to the retinal pigment epithelium
(RPE) cell death by inducing ATP depletion and DNA repair, is believed to be a
prominent pathology in age-related macular degeneration (AMD). In the present
study, we showed that and 0.1?mM nicotinamide adenine dinucleotide (NAD(+))
administration significantly blocked RPE cell death induced by 300??M H2O2.
Further investigation showed that H2O2 resulted in increased intracellular ROS
level, activation of PARP-1 and subsequently necrotic death of RPE cells.
Exogenous NAD(+) administration significantly decreased intracellular and
intranuclear ROS levels in H2O2-treated RPE cells. In addition, NAD(+)
administration to H2O2-treated RPE cells inhibited the activation of PARP-1 and
protected the RPE cells against necrotic death. Moreover, exogenous NAD(+)
administration up-regulated autophagy in the H2O2-treated RPE cells. Inhibition
of autophagy by LY294002 blocked the decrease of intracellular and intranuclear
ROS level. Besides, inhibition of autophagy by LY294002 abolished the protection
of exogenous NAD(+) against H2O2-induced cell necrotic death. Taken together, our
findings indicate that that exogenous NAD(+) administration suppresses
H2O2-induced oxidative stress and protects RPE cells against PARP-1 mediated
necrotic death through the up-regulation of autophagy. The results suggest that
exogenous NAD(+) administration might be potential value for the treatment of
AMD.