Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 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\29636695
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Front+Physiol
2018 ; 9
(ä): 180
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The Selective Angiotensin II Type 2 Receptor Agonist, Compound 21, Attenuates the
Progression of Lung Fibrosis and Pulmonary Hypertension in an Experimental Model
of Bleomycin-Induced Lung Injury
#MMPMID29636695
Rathinasabapathy A
; Horowitz A
; Horton K
; Kumar A
; Gladson S
; Unger T
; Martinez D
; Bedse G
; West J
; Raizada MK
; Steckelings UM
; Sumners C
; Katovich MJ
; Shenoy V
Front Physiol
2018[]; 9
(ä): 180
PMID29636695
show ga
Idiopathic Pulmonary Fibrosis (IPF) is a chronic lung disease characterized by
scar formation and respiratory insufficiency, which progressively leads to death.
Pulmonary hypertension (PH) is a common complication of IPF that negatively
impacts clinical outcomes, and has been classified as Group III PH. Despite
scientific advances, the dismal prognosis of IPF and associated PH remains
unchanged, necessitating the search for novel therapeutic strategies.
Accumulating evidence suggests that stimulation of the angiotensin II type 2
(AT(2)) receptor confers protection against a host of diseases. In this study, we
investigated the therapeutic potential of Compound 21 (C21), a selective AT(2)
receptor agonist in the bleomycin model of lung injury. A single intra-tracheal
administration of bleomycin (2.5 mg/kg) to 8-week old male Sprague Dawley rats
resulted in lung fibrosis and PH. Two experimental protocols were followed: C21
was administered (0.03 mg/kg/day, ip) either immediately (prevention protocol,
BCP) or after 3 days (treatment protocol, BCT) of bleomycin-instillation.
Echocardiography, hemodynamic, and Fulton's index assessments were performed
after 2 weeks of bleomycin-instillation. Lung tissue was processed for gene
expression, hydroxyproline content (a marker of collagen deposition), and
histological analysis. C21 treatment prevented as well as attenuated the
progression of lung fibrosis, and accompanying PH. The beneficial effects of C21
were associated with decreased infiltration of macrophages in the lungs, reduced
lung inflammation and diminished pulmonary collagen accumulation. Further, C21
treatment also improved pulmonary pressure, reduced muscularization of the
pulmonary vessels and normalized cardiac function in both the experimental
protocols. However, there were no major differences in any of the outcomes
measured from the two experimental protocols. Collectively, our findings indicate
that stimulation of the AT(2) receptor by C21 attenuates bleomycin-induced lung
injury and associated cardiopulmonary pathology, which needs to be further
explored as a promising approach for the clinical treatment of IPF and Group III
PH.