Catalytic nitrosation of styrene by nitric oxide in the presence of cobalt complex and BH4 ?

1984 ◽  
pp. 289 ◽  
Author(s):  
Tadashi Okamoto ◽  
Shinzaburo Oka
Keyword(s):  
Nitric Oxide ◽  
Cobalt Complex

IN VIVO AND IN VITRO EVALUATION OF ANTI-CANCER ACTIVITY OF NEWLY SYNTHESIZED COBALT COMPLEX OF COUMARIN SCHIFF BASES

INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (04) ◽  
pp. 61-69
Author(s):  
A. Rayaji ◽  
A. H. M. Viswanatha Swamy ◽  
Keyword(s):  
Nitric Oxide ◽  
Hepg2 Cell ◽  
Cobalt Complex ◽  
Reducing Ability ◽  
Anti Cancer ◽  
Anti Oxidant ◽  
Hepg2 Cell Lines ◽  
Cancer Activity

Hepatocarcinogenesis is a multistep process involving different genetic alterations that ultimately lead to malignant transformation of the hepatocytes. Modern treatment of cancer includes chemotherapy, hormone therapy, radiotherapy and surgery but they are associated with several adverse effects such as alopecia, fatigue and general weakening of the body’s immune system due to bone marrow suppression. However, there is a continual need to look out for newer drugs to overcome the menace of cancer. In view of this we synthesized the new Coumarin-Cobalt complex derivatives. Structures of all the newly synthesized metal complexes are supported by Spectral data such as IR, NMR, and mass spectrometry. Coumarin-Cobalt complex of vanillin exhibited significant anti-cancer activity by in vivo anticancer activity (BrdU estimation). Immunohistochemical analysis has been done by BrdU and the synthesized compounds were screened for anti-oxidant activity and in vitro HepG2 cell lines. The IC50 values of the HepG2 cell lines as compared with that of standard Cisplatin and compounds IIIb, IIId, IIIe, IIIh and IIIj showed appreciable activity at a concentration less than 10 μG. Coumarin-Cobalt complex of vanillin exhibited significant anti-cancer activity. Anti-oxidant activity performed by Nitric oxide reducing ability, Superoxide dismutase and reducing activity:Compounds IIIc, IIIe and IIIg showed appreciable activity at 400μg/mL and 800 μg/mL screened by nitric oxide reducing ability, superoxide anion was effectively scavenged by compound IIIg at 400μg/mL and 800 μg/mL and reducing power of compounds IIIc and IIIj is comparable with standard ascorbic acid at concentrations 400μg/mL and 800 μg/mL.

Cobalt complex based on cyclam for reversible binding of nitric oxide

2008 ◽  
Vol 34 (10-15) ◽  
pp. 909-921 ◽  
Author(s):  
O. Siri ◽  
A. Tabard ◽  
P. Pullumbi ◽  
R. Guilard
Keyword(s):  
Nitric Oxide ◽  
Cobalt Complex ◽  
Reversible Binding

Localization of endothelial nitric oxide synthase in the normal and failing human atrial myocardium

1996 ◽  
Vol 54 ◽  
pp. 786-787
Author(s):  
Chi-Ming Wei ◽  
Margarita Bracamonte ◽  
Shi-Wen Jiang ◽  
Richard C. Daly ◽  
Christopher G.A. McGregor ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Heart Failure ◽  
Nitric Oxide Synthase ◽  
Endothelial Nitric Oxide Synthase ◽  
Cardiac Tissues ◽  
Mammalian Tissues ◽  
End Stage Heart Failure ◽  
End Stage ◽  
Oxide Synthase ◽  
Endothelial Nitric Oxide

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).

Nitric Oxide Reduces Pressor Responsiveness During Ovine Hypoadrenocorticism

2001 ◽  
Vol 28 (5-6) ◽  
pp. 459-462
Author(s):  
Pini Orbach ◽  
Charles E Wood ◽  
Maureen Keller-Wood
Keyword(s):  
Nitric Oxide

Nitric oxide synthase and cellac disease

2001 ◽  
Vol 120 (5) ◽  
pp. A684-A684
Author(s):  
I DANIELS ◽  
I MURRAY ◽  
W GODDARD ◽  
R LONG
Keyword(s):  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Oxide Synthase
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