scholarly journals Evidence That Gonadotropin-Releasing Hormone Stimulates Gene Expression and Levels of Active Nitric Oxide Synthase Type I in Pituitary Gonadotrophs, a Process Altered by Desensitization and, Indirectly, by Gonadal Steroids*

Endocrinology ◽  
1998 ◽  
Vol 139 (4) ◽  
pp. 2163-2170 ◽  
Author(s):  
Ghislaine Garrel ◽  
Yannick Lerrant ◽  
Céline Siriostis ◽  
Annette Bérault ◽  
Solange Magre ◽  
...  
Keyword(s):  
Gene Expression ◽  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Gonadotropin Releasing Hormone ◽  
Gonadal Steroids ◽  
Type I ◽  
Releasing Hormone ◽  
Oxide Synthase

Nitric oxide synthase type I and type III gene expression are developmentally regulated in rat lung

1994 ◽  
Vol 266 (6) ◽  
pp. L635-L641 ◽  
Author(s):  
A. J. North ◽  
R. A. Star ◽  
T. S. Brannon ◽  
K. Ujiie ◽  
L. B. Wells ◽  
...  
Keyword(s):  
Gene Expression ◽  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Fetal Lung ◽  
Mrna Abundance ◽  
Type I ◽  
Fetal Life ◽  
Rat Lung ◽  
Developmentally Regulated ◽  
Oxide Synthase

The successful transition from fetal to neonatal life involves a marked decline in pulmonary vascular resistance which is modulated in part by endothelium-derived nitric oxide. To define the molecular processes which prepare the pulmonary circulation for nitric oxide mediation of vasodilatation at the time of birth, we determined the ontogeny of endothelial nitric oxide synthase (NOS-III) gene expression in lungs from fetal and newborn rats. Maturational changes in lung neuronal NOS (NOS-I) expression were also investigated; the latter isoform has been localized to rat bronchiolar epithelium. NOS proteins were examined by immunoblot analysis, and mRNA abundance was assessed in reverse transcription-polymerase chain reaction assays. Both NOS-III and NOS-I protein were detectable in 16-day fetal lung, they increased 3.8- and 3.1-fold, respectively, to maximal levels at 20 days of gestation (term = 22 day), and they fell postnatally (1-5 days). In parallel with the findings for NOS-III protein, NOS-III mRNA increased from 16 to 20 days gestation and fell after birth. In contrast, NOS-I mRNA abundance declined during late fetal life and rose postnatally. These findings were confirmed by Northern analyses. Thus NOS-III and NOS-I gene expression are developmentally regulated in rat lung, with maximal NOS-III and NOS-I protein present near term. The regulation of pulmonary NOS-III may primarily involve alterations in transcription or mRNA stability, whereas NOS-I expression in the maturing lung may also be mediated by additional posttranscriptional processes.

Prolonged in vivo hypoxia enhances nitric oxide synthase type I and type III gene expression in adult rat lung.

1995 ◽  
Vol 13 (2) ◽  
pp. 167-174 ◽  
Author(s):  
P W Shaul ◽  
A J North ◽  
T S Brannon ◽  
K Ujiie ◽  
L B Wells ◽  
...  
Keyword(s):  
Gene Expression ◽  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Type I ◽  
Rat Lung ◽  
Type Iii ◽  
Adult Rat ◽  
Oxide Synthase

scholarly journals Vascular Endothelin-1 Gene Expression and Synthesis and Effect on Renal Type I Collagen Synthesis and Nephroangiosclerosis During Nitric Oxide Synthase Inhibition in Rats

Circulation ◽  
1999 ◽  
Vol 99 (16) ◽  
pp. 2185-2191 ◽  
Author(s):  
Pierre-Louis Tharaux ◽  
Christos Chatziantoniou ◽  
Daniel Casellas ◽  
Laura Fouassier ◽  
Raymond Ardaillou ◽  
...  
Keyword(s):  
Gene Expression ◽  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Collagen Synthesis ◽  
Type I Collagen ◽  
Type I ◽  
Endothelin 1 ◽  
Oxide Synthase
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