scholarly journals Estrogen Increases Endothelial Nitric Oxide Synthase via Estrogen Receptors in Rat Cerebral Blood Vessels

Stroke ◽  
2002 ◽  
Vol 33 (6) ◽  
pp. 1685-1691 ◽  
Author(s):  
Anne Marie McNeill ◽  
Chunying Zhang ◽  
Frank Z. Stanczyk ◽  
Sue P. Duckles ◽  
Diana N. Krause
Stroke ◽  
2002 ◽  
Vol 33 (11) ◽  
pp. 2704-2710 ◽  
Author(s):  
Roland Veltkamp ◽  
Nishadi Rajapakse ◽  
Greg Robins ◽  
Michelle Puskar ◽  
Katsuyoshi Shimizu ◽  
...  

1999 ◽  
Vol 126 (1) ◽  
pp. 219-226 ◽  
Author(s):  
Thierry Chataigneau ◽  
Michel Félétou ◽  
Paul L Huang ◽  
Mark C Fishman ◽  
Jacques Duhault ◽  
...  

Reproduction ◽  
2006 ◽  
Vol 132 (4) ◽  
pp. 579-587 ◽  
Author(s):  
Anna T Grazul-Bilska ◽  
Chainarong Navanukraw ◽  
Mary Lynn Johnson ◽  
Daniel A Arnold ◽  
Lawrence P Reynolds ◽  
...  

This study was conducted to evaluate the expression of endothelial nitric oxide synthase (eNOS) in ovarian follicles and corpora lutea (CL) throughout the estrous cycle in sheep. Three experiments were conducted to (1) immunolocalize eNOS protein, (2) determine expression of mRNA for eNOS and its receptor guanylate cyclase 1 soluble β3 (GUCY1B3), and (3) co-localize eNOS and vascular endothelial growth factor (VEGF) proteins in the follicles and/or CL throughout the estrous cycle. In experiment 1, ovaries were collected from ewes treated with FSH, to induce follicular growth or atresia. In experiment 2, ovaries were collected from ewes treated with FSH and hCG to induce follicular growth and ovulation. In experiment 3, ovaries were collected from superovulated ewes to generate multiple CL on days 2, 4, 10, and 15 of the estrous cycle. In experiments 1 and 2, the expression of eNOS protein was detected in the blood vessels of the theca externa and interna of healthy ovarian follicles. However, in early and advanced atretic follicles, eNOS protein expression was absent or reduced. During the immediate postovulatory period, eNOS protein expression was detected in thecal-derived cells that appeared to be invading the granulosa layer. Expression of eNOS mRNA tended to increase in granulosa cells at 12 and 24 h, and in theca cells 48 h after hCG injection. In experiment 3, eNOS protein was located in the blood vessels of the CL during the estrous cycle. Dual localization of eNOS and VEGF proteins in the CL demonstrated that both were found in the blood vessels.


2001 ◽  
Vol 276 (29) ◽  
pp. 27071-27076 ◽  
Author(s):  
Myra H. Wyckoff ◽  
Ken L. Chambliss ◽  
Chieko Mineo ◽  
Ivan S. Yuhanna ◽  
Michael E. Mendelsohn ◽  
...  

Author(s):  
Chi-Ming Wei ◽  
Margarita Bracamonte ◽  
Shi-Wen Jiang ◽  
Richard C. Daly ◽  
Christopher G.A. McGregor ◽  
...  

Nitric oxide (NO) is a potent endothelium-derived relaxing factor which also may modulate cardiomyocyte inotropism and growth via increasing cGMP. While endothelial nitric oxide synthase (eNOS) isoforms have been detected in non-human mammalian tissues, expression and localization of eNOS in the normal and failing human myocardium are poorly defined. Therefore, the present study was designed to investigate eNOS in human cardiac tissues in the presence and absence of congestive heart failure (CHF).Normal and failing atrial tissue were obtained from six cardiac donors and six end-stage heart failure patients undergoing primary cardiac transplantation. ENOS protein expression and localization was investigated utilizing Western blot analysis and immunohistochemical staining with the polyclonal rabbit antibody to eNOS (Transduction Laboratories, Lexington, Kentucky).


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