Expression of Endothelial and Inducible Nitric Oxide Synthases and Nitric Oxide Production in Ovine Placental and Uterine Tissues During Late Pregnancya

Placenta ◽  
2000 ◽  
Vol 21 (5-6) ◽  
pp. 516-524 ◽  
Author(s):  
J. Zheng ◽  
y. Li ◽  
A.R. Weiss ◽  
I.M. Bird ◽  
R.R. Magness
1995 ◽  
Vol 181 (1) ◽  
pp. 63-70 ◽  
Author(s):  
N K Worrall ◽  
W D Lazenby ◽  
T P Misko ◽  
T S Lin ◽  
C P Rodi ◽  
...  

The role of nitric oxide in the immune response to allogeneic tissue was explored in an in vivo cardiac transplant model in the rat. Nitric oxide production during organ rejection was demonstrated by elevations in systemic serum nitrite/nitrate levels and by electron paramagnetic resonance spectroscopy. Messenger RNA for the inducible nitric oxide synthase enzyme was detected in the rejecting allografted heart, but not in the nonrejecting isografted heart. The enzyme was demonstrated to be biologically active by the in vitro conversion of L-arginine to L-citrulline and was immunohistochemically localized to the infiltrating inflammatory cells. Treatment with aminoguanidine, a preferential inhibitor of the inducible nitric oxide synthase isoform, prevented the increased nitric oxide production in the transplanted organ and significantly attenuated the pathogenesis of acute rejection. Aminoguanidine treatment prolonged graft survival, improved graft contractile function, and significantly reduced the histologic grade of rejection. These results suggest an important role for nitric oxide in mediating the immune response to allogeneic tissue. Inhibition of inducible nitric oxide synthase may provide a novel therapeutic modality in the management of acute transplant rejection and of other immune-mediated processes.


Endocrinology ◽  
1995 ◽  
Vol 136 (10) ◽  
pp. 4261-4270 ◽  
Author(s):  
K Kasai ◽  
Y Hattori ◽  
N Nakanishi ◽  
K Manaka ◽  
N Banba ◽  
...  

2013 ◽  
Vol 55 (3) ◽  
pp. 294-303 ◽  
Author(s):  
Young-Soon Kang ◽  
Yong-Gyu Kang ◽  
Hyun-Joo Park ◽  
Hee-Jun Wee ◽  
Hye-Ock Jang ◽  
...  

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