scholarly journals Interdependency of Cystathione  -Lyase and Cystathione  -Synthase in Hydrogen Sulfide-Induced Blood Pressure Regulation in Rats

2012 ◽  
Vol 25 (1) ◽  
pp. 74-81 ◽  
Author(s):  
A. Roy ◽  
A. H. Khan ◽  
M. T. Islam ◽  
M. C. Prieto ◽  
D. S. A. Majid
2021 ◽  
Vol 108 ◽  
pp. 104650
Author(s):  
Ewelina Zaorska ◽  
Marta Gawryś-Kopczyńska ◽  
Ryszard Ostaszewski ◽  
Marcin Ufnal ◽  
Dominik Koszelewski

2010 ◽  
Vol 120 (6) ◽  
pp. 219-229 ◽  
Author(s):  
Madhav Lavu ◽  
Shashi Bhushan ◽  
David J. Lefer

H2S (hydrogen sulfide), viewed with dread for more than 300 years, is rapidly becoming a ubiquitously present and physiologically relevant signalling molecule. Knowledge of the production and metabolism of H2S has spurred interest in delineating its functions both in physiology and pathophysiology of disease. Although its role in blood pressure regulation and interaction with NO is controversial, H2S, through its anti-apoptotic, anti-inflammatory and antioxidant effects, has demonstrated significant cardioprotection. As a result, a number of sulfide-donor drugs, including garlic-derived polysulfides, are currently being designed and investigated for the treatment of cardiovascular conditions, specifically myocardial ischaemic disease. However, huge gaps remain in our knowledge about this gasotransmitter. Only by additional studies will we understand more about the role of this intriguing molecule in the treatment of cardiovascular disease.


2020 ◽  
Vol 16 ◽  
Author(s):  
Mayank Chaudhary

Background:: Renin angiotensin system (RAS) is a critical pathway involved in blood pressure regulation. Octapeptide, angiotensin II (Ang aII), is biologically active compound of RAS pathway which mediates its action by binding to either angiotensin II type 1 receptor (AT1R) or angiotensin II type 2 receptor (AT2R). Binding of Ang II to AT1R facilitates blood pressure regulation whereas AT2R is primarily involved in wound healing and tissue remodelling. Objective:: Recent studies have highlighted additional role of AT2R to counter balance detrimental effects of AT1R. Activation of angiotensin II type 2 receptor using AT2R agonist has shown effect on natriuresis and release of nitric oxide. Additionally, AT2R activation has been found to inhibit angiotensin converting enzyme (ACE) and enhance angiotensin receptor blocker (ARB) activity. These findings highlight the potential of AT2R as novel therapeutic target against hypertension. Conclusion:: The potential role of AT2R highlights the importance of exploring additional mechanisms that might be crucial for AT2R expression. Epigenetic mechanisms including DNA methylation and histone modification have been explored vastly with relation to cancer but role of such mechanisms on expression of AT2R has recently gained interest.


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